Milpitas City Council
April 15, 2025

ATEEM – December 2024
270-30-23-22
16010 - 31
Electrical
City of Milpitas
WellUpgrades Program
McCandless Well Facility

CONTACTOR

NEMA SIZE

STARTER
VFD/

SOFT STARTER
AMPS

CTRL PWR XFMR

VA RATING
(MIN)
SIZE 2 45 150
SIZE 3 90 250
SIZE 4 135 250
SIZE 5 270 250

2.04 DISCONNECT SWITCHES
A. Switches shall be provided with the voltage, and amperage rated as shown on the oneline and other Contract Drawings. Switches shall be provided with fuse holder with fuses sized as required by the mechanical equipment when shown on Contract drawings. All switches shall be UL labeled.

B. Switches to be stainless steel NEMA 4X rated. Equipment ground kits shall be furnished for each switch
C. The operating handle shall be capable of being padlocked in the “ON” and "OFF" positions.

The operator shall be a positive, quick-make, quick-break mechanism. Disconnects shall be of the enclosed knife blade type.

D. Switches shall be provided with defeatable door interlocks that prevent the door from opening when the operating handle is in the "ON" position. Handle position shall clearly indicate whetherthe switch isin “ON” or “OFF”. Operating handle shall be an integral part of the enclosure frame and in no way part of the door or cover.

E. Disconnectswitchesshall be Square D, Eaton, or approved equal.

2.05 PULL BOXES
A. Underground pull boxes, where shown or required by length of conduit runs, shall be prefabricated concrete type with the size shown on the Drawings or larger to allow for adequate pull area. Extension sections shall be provided as necessary to reach the depth of underground conduits. All boxes shall have galvanized steel hold down bolts and hardware. Boxes located in paved areas or other areas which vehicles may travelshall be H/20 loading rated and have diamond plate steel traffic covers. Steel covers or lids shall be galvanized. Pull box covers shall be labeled with pull box designation. All underground pull boxes shall have a 12-inch bedding of ¾-inch nominal crushed rock. Pull boxes shall be Christy Concrete Products, Brooks, or approved equal.

2.06 ELECTRICAL ENCLOSURES
A. Enclosures to be NEMA rated per Indexes with fast access door latches. Enclosure construction shall be 14 gauge minimum with continuously welded seams. Outer door shall have provisions for locking enclosure with standard padlock. Provide full height white backpan.

B. Provide ground bus in each box. Ground bus shall have a minimum of 10 taps, and be rated for copper conductors.

C. All fans, vents and louvers shall be provided with removable metal filters

ATEEM – December 2024
270-30-23-22
16010 - 32
Electrical
City of Milpitas
WellUpgrades Program
McCandless Well Facility
D. Provide larger enclosure as required to accommodate the supplied equipment at no additional cost to the City.

E. All panel doors shall be installed with ground straps.

F. Provide metal data pocket within each enclosure and box to hold as-built drawings.

G. Panelsshall be provided with engraved nameplate identifying name of panel, voltage and location of power source feeding it (i.e. MCC-100, Panelboard LP-1, etc.).

H. Enclosure shall be Hoffman, Circle AW or approved equal.

PART 3 - EXECUTION

3.01 WORKMANSHIP
A. All work in this Section shall conform to the codes and standards outlined herein.

B. The Contractor shall employ personnel that are skilled and experienced in the installation and connection of all elements, equipment, devices, instruments, accessories, and assemblies. All installation labor shall be performed by qualified personnel who have had experience on similar projects. Provide first class workmanship for all installations.

C. The Contractor shall ensure that all equipment and materials fit properly in their installations.

D. The Contractor shall perform any required work to correct improper installations at no additional expense to the City.

E. The Engineer reserves the right to halt any work that isfound to be substandard or being installed by unqualified personnel.

F. All cutting and notching shall be laid out carefully in advance. Do not notch any structural member or building surface without specific approval from the Engineer. Carefully carry out any cutting, channeling, chasing, or drilling of floors, walls, partitions, ceilings, paving, or other surfaces required for the installation, support, or anchorage of conduit, raceways, or other electrical materials and equipment. Following such work, restore surfaces neatly to new condition using skilled craftsmen of the trades involved. Refinish damaged surfaces to new condition using skilled craftsmen of the trades involved at no additional cost to the City.

G. Keep the premises free from accumulation of waste material or rubbish on a daily basis.

Upon completion of work, remove materials, scraps, and debris from the premises and from the interior and exterior of all devices and equipment. Refinish damaged surfaces to new condition using skilled craftsmen of the trades involved at no additional cost to the City.

H. All equipment installed by the Contractor shall be in accordance with the Drawings and the manufacturer's recommendations & instructions and shall operate to the Engineer's satisfaction. Follow all manufacturers’ instructions for handling, receiving, installation, and pre-check requirements prior to energization. After energization, follow manufacturer’s instructions for programming, set-up and calibration of equipment. The Contractor shall be responsible for, and shall correct by repair or replacement, at his own expense, equipment that, in the opinion of the Engineer has been caused by faulty mechanical or electrical assembly by the Contractor. Necessary tests to demonstrate that

ATEEM – December 2024
270-30-23-22
16010 - 33
Electrical
City of Milpitas
WellUpgrades Program
McCandless Well Facility
the electrical and mechanical operation of the equipment is satisfactory and meets the requirements of these Specificationsshall be made by the Contractor at no additional cost to the City.

3.02 CONSTRUCTION METHODS, GENERAL
A. All field wires and panel wires shall have wire markers as specified in the “WIRE” Section.

B. All wiring shall be neatly bundled and laced with plastic tie-wraps, anchored in place by screw attached retainer. Where space is available, such as in electrical cabinets, all wiring shall be run in slotted plastic wire ways or channels with dust covers. If space is not available for wireways, then all wiring shall be neatly bundled and laced with plastic tie-wraps, anchored in place by stainless screw attached retainer. Wire ways or channels shall be sized such that the wire fill does not exceed 50%. Wires carrying 100 volts and above shall be physically separated from lower voltage wiring by using separate bundles or wireways with sufficient distance to minimize the introduction of noise, crossing only at 90 degree angles. Tie-wraps shall be T&B TY-RAP or approved equal. Proper tools shall be used to cut Ty-wraps; diagonal cutters or lineman pliers are NOT acceptable. No sharp ends shall be exposed.

C. Where wiring crosses hinged surfaces, provide a “U" shaped hinge loop protected by black or white nylon spiral wrap. The hinge loop shall be of sufficient length to permit opening and closing the door withoutstressing any of the terminations or connections. Spiral wrap shall be Panduit, Graybar T25N or approved equal.

D. Wireways, retainers, and other devices shall be screw mounted with round-head 316 stainless steel screws or mechanically mounted by push-in or snap-in attachments. Glue or sticky back attachment of any type or style shall not be used. Retainers shall be T&B TC series or approved equal.

E. All components associated with a particular compartment’s or enclosure's function shall be mounted in that compartment or enclosure.

F. Spacing and clearance of components shall be in accordance with UL, and NEC standards.

G. No wires shall be spliced without prior approval by the Engineer. Devices with pigtails, except lighting fixtures shall be connected at terminal blocks. Equipment delivered with spliced wires shall be rejected and the Contractor required to replace all such wiring, at no additional cost to the City.

H. Where splices are allowed or approved by the Engineer they shall conform with the following:

1. Wire splicing devices shall be sized according to Manufacturer's recommendations.

2. Splices of #10 and smaller, including fixture taps, shall be made with see-thru nylon self-insulated twist on wire joints; T & B "Piggys", Ideal "Wing-Nut" or approved equal.

3. Splices of #8 and larger shall be hex key screw two way connectors, with built in lock washers; T & B "Locktite", O-Z type XW or approved equal, insulated with 3M Scotch Super #88, Plymouth or approved equal.

ATEEM – December 2024
270-30-23-22
16010 - 34
Electrical
City of Milpitas
WellUpgrades Program
McCandless Well Facility

4. Splices in underground pullboxes shall be insulated and moisture sealed with 3M "Scotchcast" cast resin splice kits, Plymouth splice kits, or approved equal. Do not use splice kits with a date marking for shelf life that has expired.

5. Tape on splices shall not be allowed.

6. Splices for motor leads shall be made with 3M DB series splice kit, or approved equal.

7. Where the T-leads to motors are larger than 10 AWG, Contractor shall use NSI Polaris connectors to terminate to the motor leads.

I. Tapes shall conform to the requirements of UL 510 and be rated: 105 °C, 600V, flame retardant, hot and cold weather resistant. Vinyl plastic electrical tape shall be 7 mil black.

Phase tape shall be 7 mil vinyl plastic, color coded as specified. Electrical insulation putty shall be rubber based, elastic putty in tape form. Varnished cambric shall not be used.

J. Connectionsto terminals shall be as follows:

1. Use connector or socket type terminals furnished with component.

2. Connectionsto binding post screw, stud, or bolt use:
a. For #10 and smaller wire, T & B "Sta-Kon", Buchanan "Termend", or approved equal, self-insulated locking forked tongue lug. b. For #8 to #4/0 wire, T & B "Locktite", Burndy QA, or approved equal, lug of shape best suited.

3. Use ratchet type crimping tool which does not release until proper crimp pressure has been applied.

4. Connections for all terminals shall be made with insulation stripped per manufacturer's instructions.

K. Equipment shall be wired and piped by the manufacturer or supplier. Major field modifications or changes are not allowed without the written "change order" authority by the Engineer. When field changes are made, the components, materials, wiring, labeling, and construction methods shall be identical to that of the original supplied equipment. Contractor's cost to replace or rework the equipment to match original manufacturer or supplier methods shall be done at no additional cost to the City.

L. Mating fittings, bulkhead fittings, plugs, lugs, connectors, etc. required to field interface to the equipment and panels shall be provided by the supplier when the equipment is delivered.

M. All electrical and instrumentation factory as-built drawings associated with the equipment shall be provided with the equipment when it is delivered to the job site.

Drawings for each piece of equipment shall be placed in clear plastic packets of sufficient strength that will not tear or stretch from drawing removal and insertion.

N. All wire and cable lugs shall be copper; aluminum or aluminum alloy lugs shall not be allowed. The Electrical Contractor shall supply all lugs to match the quantity and size of wire listed in the Conduit & Wire Routing Schedule.

ATEEM – December 2024
270-30-23-22
16010 - 35
Electrical
City of Milpitas
WellUpgrades Program
McCandless Well Facility

3.03 EQUIPMENT FABRICATION, GENERAL
A. Panel and enclosure cutouts for devices (i.e. indicating lights, switches) shall be cut, punched, or drilled and smoothly finished with rounded edges. Exposed metal from cutouts that are made after the final paint finish has been applied shall be touched up with a matching paint prior to installing device. Do not paint nameplates, labels, tags, switches, receptacles, conductors, etc.

B. All Panel and enclosure doorsshall be fully gasketed, with non-shrinkable water and flame resistant material.

C. Bolts and screwsfor mounting devices on doorsshall be asspecified by the manufacturer, otherwise they shall have a flush head which blends into the device or door surface. No fastening devices shall project through the outer surfaces of equipment.

D. No fastening devices shall project through the outer surfaces of equipment.

E. Each component within the equipmentshall be securely mounted on an interiorsubpanel or backpan and arranged for easy servicing, such that all adjustments and component removal can be accomplished without removing or disturbing other components.

Mounting bolts and screws shall be front located for easy access and removal without special tools. Access behind the sub panel or backpan shall not be required for removing any component.

F. A ground bus shall be provided in each enclosure or cabinet. It shall have provisions for connecting a minimum of ten grounding conductors. Screw type lugs shall be provided for connection of grounding conductors. All grounding conductorsshall be sized as shown on plans or in accordance with NEC Table 250.122, whichever is larger.

G. Minimum wire bending space at terminals and minimum width of wiring gutters shall comply with NEC Tables 373.6 (A) & (B).

H. Wire sizes shall not be installed smaller than those shown in NEC 310 for each circuit amperage rating.

I. Future device and component mounting space shall be provided on the door, backpan, and subpanel where detailed on the Drawings. Where no detail is shown, provide a minimum of 15 percent usable future space.

J. Doors shall swing freely a minimum of 90° and close with proper alignment.

K. All control, power, and signal wireways inside enclosures shall be run in separate plastic wireways.

L. TERMINATIONS: Single wire and cable conductors shall be terminated according to the requirements of the terminal device. All terminations must be made at terminals or terminal blocks. Use of spring or buttsplice connectors are not allowed.

1. Provide 3” minimum separation between wireway and terminal blocks.

Installation of wireways too close to terminal blocks will be required to be completely reworked to the satisfaction of the City.

2. For captive screw pressure plate type terminals, the insulation shall be removed from the last 0.25 inches of the conductor. The conductors shall be inserted under the pressure plate to full length of the bare portion of the conductor and

ATEEM – December 2024
270-30-23-22
16010 - 36
Electrical
City of Milpitas
WellUpgrades Program
McCandless Well Facility
the pressure plate tightened without excessforce. No more than two conductors shall be installed in a single terminal. All strands of the conductor shall be captured under the pressure plate.

3. For screw terminals, appropriately sized locking forked spade lugs shall be used.

Lugs shall be crimp on type that form gas tight connections. All crimping shall be done using a calibrated crimping tool made specifically for the lug type and size being crimped.

4. On shielded cables, the drain wire shall be covered with insulating tubing along its full bare length between the cable jacket and the terminal lug or terminal pressure plate.

5. For screwless terminals, wire shall be stripped back and inserted per the manufacturer's instructions. When stripping insulation from conductors, do not score or otherwise damage conductor.

6. Heat shrink shall be placed on ends of shielded cable to cover foil.

7. Additional condulets with wire nut shall be supplied for wire termination to devices with leads instead of terminals. (i.e. solenoid valves, level probe, etc.)

8. Terminate all status, control, and analog I/O wiring on terminal blocks, including spares. Provide additional relay, DIN rails, terminal blocks and side panels as required.

M. All devices and wiring shall be permanently labeled and secured in accordance with paragraphs NAMEPLATES AND TAGS, WIRE and CONDUITS, RACEWAYS AND WIREWAYS.

N. All components associated with a particular compartment's or enclosure's function shall be mounted in that compartment or enclosure.

O. Spacing and clearance of components shall be in accordance with UL, and NEC standards.

P. Provide metal data pocket within each enclosure and box to hold as-built drawings, including Control Panels and remote panels.

3.04 DELIVERY
A. Contractorshall inspect each electrical and instrumentation item delivered to the jobsite.

B. Contractorshall unpack each item for inspection within two (2) days of arrival.

C. Complete written inventory shall be produced by Contractor and submitted to City within (2) days after arrival on jobsite for record keeping prior to any payment for the item.

3.05 DAMAGED PRODUCTS
A. Damage products will not be accepted. All damaged products shall be replaced with new products at no additional cost to the City.

3.06 FASTENERS
A. Fasteners for securing equipment to walls, floors, and the like shall be 316 stainless steel.

The minimum size fastenershall be 3/8 inch diameter. Layout to maintain headroom, neat mechanical appearance, and to support equipment loads required.

ATEEM – December 2024
270-30-23-22
16010 - 37
Electrical
City of Milpitas
WellUpgrades Program
McCandless Well Facility
B. Reinforced concrete pad with stainless steel anchor bolts shall be provided for floor mounted electrical enclosures.

C. Anchor Methods:

1. Hollow Masonry: Sleeve type anchors.

2. Solid Masonry: Sleeve type anchors or epoxy anchors bolts.

3. Metal Surfaces: Machine screws, bolts, or welded studs.

4. Concrete Surfaces: Wedge or expansion anchors.

5. Structural Steel: Right angle, parallel and edge type rigid metal clamps. Do not weld or drill structural steel.

D. Equipment Mounting:

1. The Contractor shall be responsible for furnishing and setting all anchor bolts required to install his equipment.

2. Electrical equipment shall be unistrut “stand off” mounted a minimum of ½ - inch from the wall in a manner so that the rear of the equipment is freely exposed to air circulation. Unistrut material shall be stainless steel in NEMA 4X areas and galvanized in non-NEMA 4X areas unless called out specifically in details.

3. All equipment enclosures shall be of the NEMA classification noted on the electrical plan Drawings for the area in which the device will be mounted.

4. Reinforced concrete pad with stainless steel anchor bolts shall be provided for each electrical freestanding equipment.

E. Dissimilar metals such as aluminum, stainless steel, steel, galvanized steel between enclosures, devices, etc. and mounting surfaces shall be isolated from each other using insulated tape or nonmetal spacers. Tape and spacers used shall be specifically manufactured for this application.

3.07 INSTALLATION, GENERAL
A. System:

1. Install all products per manufacturer'srecommendations and the Drawings.

2. Provide all necessary hardware, conduit, wiring, fittings, and devices to connect the electrical equipment provided under other Sections. The following shall be done by the Contractor at no additional cost to the City:
a. Provide additional devices, wiring, conduits, relays, signal converters, isolators to complete interfaces of the electrical and instrumentation system.

ATEEM – December 2024
270-30-23-22
16010 - 38
Electrical
City of Milpitas
WellUpgrades Program
McCandless Well Facility
b. Changing normally open contacts to normally closed contacts or vice versa.
c. Adding additional relays to provide more contacts as necessary. d. Installing additional terminal blocksto land wires.
e. Provide larger circuit breakers, conduit and wire, as required for the horsepower of the supplied equipment, when the supplied equipment is larger than that specified, at no additional cost to the City. f. Provide larger motor termination boxes and lugs as required to accommodate conduit and wires. Provide lug adaptors as required to provide terminations between wire specified and lugs of equipment to be connected to.
g. Other work implied by contract documents.

3. All programmable devices shall be programmed, set-up and tested by the Contractor prior to startup. Thisincludes PLC, OI, and transmitters. Programming and set-up parameters shall be adjusted or changed as directed by the City or Engineer during start-up and throughout the warranty period, at no additional cost to the City.

4. Coordinate with the City and setup all alarm, process, and operation setpoints.

5. Keep a copy of the manufacturer’s installation instructions on the jobsite available for review at all times prior to and during any installation of the associated equipment.

B. Panels and enclosures:

1. Install panels and enclosures at the location shown on the Plans or approved by the Engineer.

2. Install level and plumb.

3. Provide larger motor termination boxes asrequired to accommodate conduit and wires.

4. Seal all enclosure openings to prevent entrance of insects and rodents.

5. All conduits entering outdoor panels and enclosures shall use watertight hubs.

These hubsshall be located on sides or bottom only. Top entry of outdoor panels or enclosures is not allowed.

6. Clearance about electrical equipment shall meet the minimum requirements of NEC 110.26 and manufacturer’s instructions.

ATEEM – December 2024
270-30-23-22
16010 - 39
Electrical
City of Milpitas
WellUpgrades Program
McCandless Well Facility

7. Additional condulets with terminal blocks shall be supplied for wire termination to devices with leads instead of terminals. (i.e. solenoid valves, level probe, etc.)

8. Terminate all status, control, and analog I/O wiring on terminal blocks, including spares. Provide additional relay, DIN rails, terminal blocks and side panels as required.

9. A ground bus shall be provided in each enclosure or cabinet. It shall have provisions for connecting a minimum of ten grounding conductors. Screw type lugs shall be provided for connection of grounding conductors. All grounding conductors shall be sized as shown on plans or in accordance with NEC Table 250.122, whichever is larger.

10. All panels and enclosures be delivered with as-built drawings in clear plastic packets within each panel and enclosure.

C. Conduits and Ducts:

1. Install all conduits and ducts per 16110 - Conduit, Boxes & Grounding.

D. Wiring, Grounding, and Shielding:

1. Wiring inside and outside equipment shall be installed per Section 16120.

2. It is important to observe good grounding and shielding practices in the generally noisy environment in this application. The shield of shielded cables shall be terminated to ground at one end only, the control panel end. The shield at the other end shall be encased in an insulated heat shrink material to isolate it from ground. Heat shrink shall be placed on ends of shielded cable to cover foil.

3. Special cables shall be provided when required by manufacturer or necessary to correct noise or distortion interference at no additional cost to City.

4. Field wiring shall not begin until interconnection drawings have been submitted by the Contractor and approved by the Engineer, as specified herein.

E. Cutting and Patching:

1. The Contractor shall do all cutting and patching required to install his work. Any cutting which may impair the structure shall require prior approval by the Engineer. Cutting and patching shall be done only by skilled labor of the respective trades. All surfaces shall be restored to their original condition after cutting and patching.

F. Seals:

1. Seal around all conduits, wires, and cables penetrating between electrical panels, walls, ceilings, and floors in all buildings with a fire stop material. Seal shall be made at both ends of the conduit with a fire stop putty. Seal shall have a minimum two hour rating. Fire stop sealing shall be International Protective Coatings Flamesafe, or approved equal.

ATEEM – December 2024
270-30-23-22
16010 - 40
Electrical
City of Milpitas
WellUpgrades Program
McCandless Well Facility

2. Seal around conduits entering outside to inside structures and around bottom of free standing enclosures to maintain watertight integrity of structure.

3. Place conduit seal inside each underground conduit riser into panels and enclosures to prevent entrance of insects and rodents.

4. Seal each conduit entrance from below grade into the panel and other electrical enclosures with plugging compound sealant to prevent the entrance of insects and rodents. Conduits between the enclosures shall be sealed with plugging compound sealant on each end. Plugging compound sealant shall be PRC-DeSoto (formerly Courtaulds) Aerospace Semco PR-868 or approved equal.

5. Seal conduits entering any electrical instrument. Install conduit drain boxes and plug conduit interior to form an effective barrier to keep out water traveling into equipment or instrumentation from conduit installed higher than equipment or instrumentation.

G. Housekeeping Pads:

1. Concrete housekeeping pads are required for all free standing electrical equipment. Housekeeping pads shall be 3-1/2” inches above surrounding finished floor or grade unless otherwise shown and shall be 3 (minimum) inches larger in width and depth around equipment. Housekeeping pads shall be installed for future units as shown on the Contract Drawings.

2. Housekeeping pad shall be high quality concrete with rebar woven into floor rebar network. Concrete shall be precisely leveled so that equipmentset in place will not require shimming.

3. Housekeeping pad shall be Class “A” concrete with rebar crossway network. The minimum size rebar allowed is #3. Concrete shall be precisely leveled so that equipment set in place will not require shimming.

H. Cleaning and Touch up:

1. Priorto energizing the device initially and a second time immediately prior to final acceptance all parts of the installation, all equipment, exposed conduit, and fittings, shall be thoroughly cleaned of and given touch-up by Contractor as follows:
a. Remove all grease and metal cuttings.
b. Any discoloration or other damage to parts of the building, the finish, or the furnishings, shall be repaired.
c. Thoroughly clean any of his exposed work requiring same. d. Vacuum and clean the inside of all panels, motor control centers, panelboards, junction boxes and other enclosures supplied under this

ATEEM – December 2024
270-30-23-22
16010 - 41
Electrical
City of Milpitas
WellUpgrades Program
McCandless Well Facility
project containing electrical equipment to remove all dirt, metal chips, stripped insulation, etc., from the enclosure.
e. Clean all above and below ground pull boxes, junction boxes, and vaults from all foreign debris prior to final acceptance.
f. Special “Soft–Jaw” type pipe clamps shall be used to prevent damage to PVC-coated conduit while field threading and cutting to length. g. Paint all scratched or blemished surfaces with the necessary coats of quick drying paint to match existing color, texture and thickness. This shall include all prime painted electrical equipment including but not limited to enclosures, poles, boxes, devices etc.
h. Remove all decals and lettering from both sides of support plates. i. Repair damage to factory finishes with repair products recommended by Manufacturer.
j. Repair damage to PVC or paint finishes with matching touchup coating recommended by Manufacturer.

3.08 SAFETY LOCKOUTS
A. Contractor shall provide safety lockout tags on the breakers for all switchboards, MCCs and panelboards and other electrical enclosures. Safety tags shall not be the same as those used by the City. All padlocks used for this purpose shall be keyed differently from any of the City’s padlocks. Padlocksshallremain in place by the Contractor until operation of the portion of work is turned over to the City with the responsibilities noted on the acceptance form.

B. The following is the procedure for transferring each portion of work over to the City prior to completion of the entire project:

1. Contractorshall inform the City when a portion of the work is complete, ready for inspection and available to be placed into operation.

2. The City will schedule the inspection and substantiate that the work is complete and operational.

3. The Contractor will correct any deficiencies.

4. The City will prepare a Partial Utilization form in which that portion of the project will be turned over the City with the responsibilities noted on the acceptance form. The Contractor then shall remove his safety lockouts and tags.

C. Safety lockout tags shall be rigid vinyl with write-on surface and brass grommet. Safety tags shall be secured in place with cord of sufficient strength to prevent accidental removal or displacement. Safety lockout tags shall be Panduit Write-on Safety Tags, model PVT-98 or approved equal.

ATEEM – December 2024
270-30-23-22
16010 - 42
Electrical
City of Milpitas
WellUpgrades Program
McCandless Well Facility

3.09 OPERATION AND MAINTENANCE MANUALS
A. Provide Operation and maintenance manuals bound in a three ring binder with one set made up completely with original manuals per this subsection & Section 01300. O&M shall contain the following as a minimum:

1. A comprehensive index in each volume for all volumes.

2. A complete "Record" set of favorably reviewed electrical submittals as provided undersubsection Submittal and Drawing Requirements. Include as-built one-line, elevation, loop, elementary and interconnection drawings.

3. A complete list of the equipment supplied, including serial numbers, ranges, catalog cuts, and pertinent data.

4. Full specifications on each item.

5. Detailed service, maintenance and operation instructions for each item supplied.

Schematic diagrams of all electronic devices shall be included. A complete parts lists with stock numbers shall be provided on the components that make up the assembly. All of these shall be originals, no copies.

6. Record of the following:
a. Each motorstarter including manufacturer, full part number, size, etc. b. Overload heater element including manufacturer, full part number, size, etc.
c. Each breaker and overload heater element including manufacturer, full part number, size, setting etc.

7. Safety precautions and procedures.

8. Special maintenance requirements particular to this system shall be clearly defined, along with special calibration and test procedures.

9. Complete listing of as-built PLC setup and programming listings and OI graphic documentation.

10. Spread sheet listing all setpoints and programmable parameters entered for this project for VFD, PLC application program, all instrumentation and transmitters, etc.

11. Include all completed and signed test data and forms from factory and field testing.

12. No photo copies are allowed of standard published manuals available from manufacturers, such as for the VFD. All of the manuals shall be originals.

ATEEM – December 2024
270-30-23-22
16010 - 43
Electrical
City of Milpitas
WellUpgrades Program
McCandless Well Facility

13. Factory & Field test results.

14. Warranty certificate with start dates, duration and contact information.

15. Troubleshooting instructions.

16. Record of all settings or parameters for all programmable devices.

B. At the end of the project these manuals shall be updated to show "as-built" conditions.

C. Provide to the City four (4) each USB drives with lanyards and two sets of CDs (CDs shall contain all documents in both PDF format and unlocked AutoCAD - DWG format, version 2010 or later):

1. As-built Contract electrical and instrumentation drawings prepared for this project.

2. As-built sets of other computer generated documents prepared for this project, and Bill of Materials prepared for this project.
a. As-installed software VFD/ SSS configuration settings.

3. Electronic PDF version of O&M manual. Version format shall follow the hard copy submittal of the O&M, including index, equipment record sheet, warranty information, theory of operation, maintenance instruction, etc. PDF shall be “bookmarked” at each index, subtab, transmittal letter, equipment record sheet, warranty information, theory of operation, maintenance instruction, etc. Failure to bookmark PDF may be grounds for immediate rejection without review.

Bookmarks shall be descriptive of actual document, tab, etc. Bookmarks shall not be out of order; the English description shall match that listed in the Submittal’s Table of Contents.

4. These files shall be the property of the City, for its use on this and future projects.

5. Label drives with site name using with clear plastic with black machine printed lettering as produced by a KROY or similar machine. The size of the nameplate tape shall be with 3/8-inch lettering unless otherwise approved by the Engineer.

Securely fasten nameplates in place on the USB drive using the adhesion of the tape.

3.10 TESTING
A. GENERAL REQUIREMENTS

1. It is the intent of these tests to assure that all equipment is operational within industry and manufacturer's tolerances and is installed in accordance with design plans and specifications.

2. All equipment setup and assembled by the Contractorshall be in accordance with the design plans and Drawings and the manufacturer's recommendations and

ATEEM – December 2024
270-30-23-22
16010 - 44
Electrical
City of Milpitas
WellUpgrades Program
McCandless Well Facility
instructions and shall operate to the Engineer's satisfaction. Follow all manufacturer's instructions for handling, receiving, installation, and pre-check requirements prior to energization. After energization, follow manufacturer’s instructions for programming, set-up and calibration of equipment. The Contractor shall be responsible for, and shall correct by repair or replacement, at his own expense, equipment which, in the opinion of the Engineer, has been caused by faulty mechanical or electrical assembly by the Contractor. Necessary tests to demonstrate that the electrical and mechanical operation of the equipment is satisfactory and meets the requirements of these Specifications shall be made by the Contractor at no additional cost to the City.

3. The testing shall not be started until the manufacturer has completed fabrication, wiring, and setup; performed satisfactory checks and adjustments; and can demonstrate the system is complete and operational. Certification of completion of Contractor’s in-house tests shall be submitted prior to scheduling of factory testing.

4. Factory tests shall not be scheduled until submittals associated with the equipment have been approved by the Engineer.
a. If equipment is significantly different from submittal drawings, this shall be grounds for cancellation and rescheduling of factory tests at no additional costs to City or extension of Contract time. b. Engineer reserves the right to postpone the factory test, at no additional cost to the City, until the submittal associated with the factory test has been reviewed by the Engineer and marked "No Exceptions Taken" or "Make Corrections Noted." No extension of Contract time will be allowed.

5. All tests shall be witnessed by the Engineer and/or City personnel. The test forms shall be completed by the testing person for field checkout, testing, and calibration of all equipment and instruments. All filled in test formsshall be given to the Engineer and/or City the day of the test. Fill in two sets of test forms if Contractor wants to keep a copy. All tests shall be documented in writing by the supplier and signed by the Engineer as satisfactory completed. The supplier shall keep a detailed log of all tests that failed or did not meet specifications, including date of occurrence and correction. Completed forms with proper signatures and dates shall be included and become a component of the Operations and Maintenance Manual for each of the respective systems.

6. The Contractor shall notify the City and the Engineer of the Supplier's readiness to begin all factory and field tests in writing (a minimum of ten working days prior to start), and shall schedule system checkout on dates agreed to by the City and the Engineer in order that the testing be scheduled and witnessed.

7. The Contractor shall fill in & submit for approval the “Scheduled Test Request Form” located in Appendix “A” for each requested inspection, factory and field test.

ATEEM – December 2024
270-30-23-22
16010 - 45
Electrical
City of Milpitas
WellUpgrades Program
McCandless Well Facility

8. Separate test procedure in separate binders shall be submitted for approval for the Factory, Pre-Energization Field Tests and Powered Field Tests at least two weeks prior to the start of the tests. Testing shall not commence until the test procedures have been reviewed and approved by the City. Test forms shall be provided asillustrated in Appendix “A”. Each testing sheet shall have a title giving the type of test and entry spaces for the name of the person who performed the test, name of the person who witnessed the test, and the date.

9. Test equipment used for testing shall be of suitable quality so as not to mask performance deficiencies. All test equipment shall be traceable to National Bureau of Standards and have been calibrated within six months of test date.

10. The first set of tests to be performed shall determine the suitability for energization and shall be completed with all power turned off.

B. Failure To Meet Test

1. Any system material or workmanship which is found defective on the basis of acceptance tests shall be reported to the Engineer. The Contractor shall replace the defective material or equipment and have tests repeated until test proves satisfactory to the Engineer without additional cost to the City.

2. If the results of any of tests are unacceptable to the Engineer, the Contractorshall make corrections and perform the tests again until they are acceptable to the Engineer; these additional tests shall be done at no additional cost to the City.

3. If testing, installation or configuration work performed is deemed inadequate by City or Engineer, then the Contractor shall provide a qualified technician to meet these requirements. No extension of Contract time will be allowed.

4. If the “system setup” is found to be not fully and completely ready for factory testing by the City Representative, the Contractor shall be responsible for paying for the City and Engineer to return for the factory testing. Factory testing is to ensure that there are no defects. The hardware and software shall be tested for compliance with the plans and Specifications included herein and for the ability to perform the control functions.

C. Safety

1. Testing shall conform to the respective manufacturer's recommendations. All manufacturers’ safety precautions shall be followed.

2. The procedures stated herein are guidelines for the intended tests, the Contractor shall be responsible to modify these tests to fit the particular application and ensure personnel safety. Absolutely no tests shall be performed that endanger personal safety.

3. The Contractor shall have two or more personnel present at all tests.

ATEEM – December 2024
270-30-23-22
16010 - 46
Electrical
City of Milpitas
WellUpgrades Program
McCandless Well Facility

4. Two non-licensed portable radios are to be made available by the Contractor for the Contractor to conduct tests.

5. California Electrical Safety Orders (ESO) and Occupational Safety and Health Act (OSHA): The Contractor is cautioned that testing and equipment shall comply with ESO and OSHA as to safety, clearances, padlocks and barriers around electrical equipment energized during testing.

6. Field inspections and pre-energization tests shall be completed prior to applying power.

D. Electrical Factory Tests

1. The System supplier shall conduct a thorough and complete factory test by qualified factory-trained personnel witnessed by City per the criteria specified herein. Factory test shall be held within 150 miles of project location.

2. The “system set-up” for testing shall consists of, but is not limited to:
a. Switchboards
b. Generator Termination Box
c. Main Switchboard B (MCC)
d. PLC Control Panel
e. Sunshields
f. Disconnect Switches
g. VFDs
h. Any miscellaneous associated electrical equipment.
i. All control components shall be installed and PLCs programmed with full functional logic.

3. Temporary wiring and equipment shall be setup during these tests to simulate the complete assembled system.

4. The length of the factory testing for the system setup shall be a minimum of two (2) working day (8 hours per day). If in the opinion of the City or Engineer the factory testing is not completed at the end of the working day, the testing shall be extended, at no additional cost to the City or extension in Contract time. The Contractor shall agree that the sum set forth hereafter is a reasonable amount to be charged as liquidated damages; and it is therefore agreed that the Contractor will pay the City the sum of one thousand-five hundred dollars ($1500.00) in liquidated damages for each and every calendar day beyond the time prescribed above for the completion of factory testing for the system setup.

ATEEM – December 2024
270-30-23-22
16010 - 47
Electrical
City of Milpitas
WellUpgrades Program
McCandless Well Facility
Liquidated damages will be assessed to the Contractor each and every day past the time allotted for factory testing.

5. All factory tests shall be conducted at the Supplier’s facility. All factory tests shall be completed prior to shipment of any of the “system setup” to the jobsite. The “system setup” shall be fully assembled, programmed and connected as it will be installed in the final configuration. If the “system setup” is found to be not fully and completely ready for factory testing, the Contractor shall be responsible for paying for the City and Engineer to return for the factory testing. Factory testing is to ensure that there are no defects. The hardware and software shall be tested for compliance with the plans and Specifications included herein and for the ability to perform the control functions.

6. All components of the system setup shall be completely assembled and thoroughly pre-tested by the supplier or manufacturer before start of factory test.

7. The testing shall not be started until the manufacturer has completed fabrication, wiring,setup, and programming; performed satisfactory checks and adjustments; factory testing sheets approved by City; and can demonstrate the system is complete and operational.

8. Provide a complete clean copy of System Supplier drawings for City and Engineer’s use during Factory Test. These drawings shall reflect the equipment being tested. If City Representative determines that these drawings do not adequately reflect the actual equipment being tested or differssubstantially from the approved equipment submittal, the City Representative reserves the right to cancel the Factory Test as the equipment is found to be not fully and completely ready for factory testing. Equipment that differs substantially from the approved equipment submittal shall be resubmitted. Factory test will be rescheduled after revised submittals have been reviewed by the Engineer and marked "No Exceptions Taken" or "Make Corrections Noted". No extension of Contract time will be allowed. Cancellation and rescheduling of factory tests shall occur at no additional costs to City.

9. Factory testing sheets shall be provided by System Supplier and submitted for approval. Factory testing sheets shall contain the following:
a. A separate set of factory testing sheets for all defined “PLC I/O” that includes:
1) A list of all PLC I/O tag names with description sorted by type (analog input, analog output, digital input, and digital output) shown on Contract I-Series Drawings.
2) Predefined column entry spaces adjacent to each tag name for logging the result of the test as failed or passed, comments, and date of corrective action (used when test failed initially, and problem subsequently corrected to pass test).

ATEEM – December 2024
270-30-23-22
16010 - 48
Electrical
City of Milpitas
WellUpgrades Program
McCandless Well Facility
3) For "analog input" blocks provide column entry spaces for the simulated test values (i.e., 1, 3, and 5 VDC) and displayed test value responses (i.e., 0, 50, and 100% of engineering units span). b. A separate set of "alarm" factory testing sheetsfor all defined alarmsthat includes:
1) A list of all alarm names.
2) Predefined column entry spaces adjacent to each cell for logging the result of the test as failed or passed, comments, and date of corrective action (used when test failed initially, and problem subsequently corrected to pass test).

10. The associated factory tests for each of the factory testing sheets that are to be performed by the supplier and witnessed by the City Engineer shall include the following system setup as a minimum:
a. Testing of the “system set-up” as follows:
1) Vacuum and clean the inside of all MCC and electrical and instrumentation enclosures prior to start of factory test. 2) Inspections- Visual and mechanical
a) Inspect for physical damage, propersupport, and wiring. b) Check all starters, breakers, and other components for proper sizes.
c) Compare equipment nameplate data with design one
line diagrams.
d) Complete test form TF4 located in Appendix “A”.
b. Testing of Control as follows:
1) To facilitate testing and system simulation of the “System Setup”, the Supplier shall connect a separate toggle two position onoff switch to each status and alarm digital input. Three digital multi-meters (minimum +/- 0.2% accuracy) with clip-on leads shall be supplied and utilized during testing for measurement of digital and analog outputs. The suppliershall use simulated input signals to replicate varying field device signals during the factory tests in order to verify the proper functioning of hardware and software.
c. Testing of Control and Programming:
1) The system set-up for factory testing consists of, but is not limited to, MCCs completely wired, PLC interfaces connected and fully programmed, power monitor, fiber modules, fiber optic link between fiber modules and any miscellaneous equipment
associated with the MCC system all assembled in enclosures as that of the final installation.

ATEEM – December 2024
270-30-23-22
16010 - 49
Electrical
City of Milpitas
WellUpgrades Program
McCandless Well Facility
2) To facilitate testing and system simulation, the Supplier shall connect a separate toggle two position on-off switch to each status and alarm digital input. In addition, a power supply and a separate potentiometer which produces a variable 0 to 5 VDC or 4-20mA signal shall be connected to each analog input. Three digital multimeters, (minimum +/- 0.2% accuracy) with clip-on leads, shall be supplied and utilized during testing for measurement of digital and analog outputs. The supplier shall use simulated input signals to replicate varying field device signals during the factory tests in order to verify the proper functioning of hardware and software.
3) The structured factory tests to be performed by the System Supplier and witnessed by the City shall include the following as a minimum:
a) Control Checkout Tests: Simulate the digital or analog signals (or combination thereof) at the MCC field
terminals using the test hardware to verify that each
control is functional and properly configured. Verify that all parameters (i.e., relay logic operations, relay timing, controller setpoints, etc.) of the control system are
defined and operate according to the design documents.

Each line of control logic on the elementary and loop
diagrams shall be checked. After a line of control logic is tested, the person performing test shall initial the
corresponding line on the elementary or loop diagram.

When the complete elementary or loop diagram has
been checked, it shall be signed and dated by testing
person and person witnessing test.
b) Alarm Checkout Tests: Simulate the digital or analog signals (or combination thereof) at the MCCs using the
test hardware to verify that each PLC I/O point is
functional and properly configured. Verify that all
parameters (i.e., description, engineering units, span, enable/disable, setpoints, runtimes, totalization, logic type, etc.) of the alarms are defined and operate
according to the Specifications. Multiple alarm states
(i.e., LO, LO-LO, HI, HI-HI, etc.) shall be checked by varying the input signal.
c) PLC Program Tests: Each line of control shall be checked.

After a line of control logic is tested, the person
performing test shall initial the corresponding line on the control strategy. When the complete control strategy
has been checked, it shall be signed and dated by testing person and person witnessing test.
4) Unstructured factory tests are required as part of the factory testing phase. These additional tests shall include any and all unstructured tests as directed by the City or Engineer. The

ATEEM – December 2024
270-30-23-22
16010 - 50
Electrical
City of Milpitas
WellUpgrades Program
McCandless Well Facility
various unstructured tests shall include, but are not limited to, the following:
a) Verify the correct inventory of hardware, etc. All spare parts shall be included in the inventory.
b) Simulate the equipment failure and power fail/restart of PLC. Check the effects of each failure on maintaining
operations with the remaining equipment.
c) The factory tests, as a minimum,shallsimulate all normal and abnormal operating conditions, including steady
state, change of state, variable changes, fluctuations, transients, upsets, start-up, shutdown, power failure,
and equipment failure conditions.
d) Verification of proper scanning, collection rate, update refresh, and data acquisition of allstatus, alarm, and data points from all PLCs.
e) Measure and test all power supplies for correct voltage.

Operate UPS under its own power to test UPS run
duration and alarms.
f) Spare partsfor the system shall also be tested during this test period. The System Supplier shall prove by
temporarily connecting the spare hardware to the
system that any or all of the spare parts function in a manner equivalent to the original equipment under test.

11. The factory test will be considered complete only when the integrated system has successfully passed all tests to the satisfaction of the City or Engineer. No electrical equipment shall be shipped to jobsite without authorization from the City or Engineer that the factory test has been completed. Equipment that were shipped to the jobsite without authorization shall be shipped back to the System Supplier for witness testing at no additional cost to City.

12. Acceptance and witnessing of the factory tests does not relieve or exclude the Contractor from conforming to the requirements of the Contract Documents.

13. The testing personnel shall provide all material, equipment, labor and technical supervision to perform such tests and inspections.

14. During the testing period, under the supervision of the supplier, the Engineer and other City personnelshall have unlimited and unrestricted accessto the usage and testing of all hardware and software in the system.

15. Spare parts for the system shall also be tested during this test period. The supplier shall prove by temporarily connecting the spare hardware to the system that any or all of the spare parts function in a manner equivalent to the original equipment under test.

ATEEM – December 2024
270-30-23-22
16010 - 51
Electrical
City of Milpitas
WellUpgrades Program
McCandless Well Facility

16. The System Suppliershall pay all expensesincurred by his personnel who includes labor, material, transportation, lodging, daily subsistence, and other associated incidental costs during the factory testing.

17. Faulty and/or incorrect hardware operation of major portions of the system may, at the discretion of the City Engineer, be cause forsuspension or restarting of the entire factory test, at no additional cost to the City or extension in contract time.

18. The factory test will be considered complete only when the system setup has successfully passed all tests both structured and unstructured to the satisfaction of the City Engineer. No equipment shall be installed without authorization from the City Engineer that the factory test has been completed.

19. All modifications to drawings and documentation as a result of the factory tests shall be corrected and completed before shipment of drawings with equipment and the submittal and delivery of “operation and maintenance” manuals.

20. Copies of the completed and witnessed factory testing forms shall be placed in the Operation and Maintenance Manual.

E. ELECTRICAL FIELD TESTS

1. Prior to any field testing, Interconnection Drawings and Operation & Maintenance Manualsshall have been submitted by the Contractor and approved by the Engineer.

2. The Electrical Contractor shall engage and pay for the services of an approved qualified testing company for the purpose of performing inspections and tests as herein specified. The testing company shall provide all material, equipment, labor and technical supervision to perform such tests and inspections.

3. The Electrical Contractor shall complete and submit “Schedule Test Request Form” as illustrated in Appendix “A” for each electrical field test.

4. The Electrical Contractor shall be at the jobsite to assist with all Electrical Field Tests.

5. The all test formsshall list all test equipment used to perform calibration and date of last calibration.

6. Pre-Energization Tests: These tests shall be completed prior to applying power to any equipment:
a. Field Inspections
1) Inspect for physical damage, proper anchorage, and grounding. 2) Compare equipment nameplate data with design plans and starter schedule.

ATEEM – December 2024
270-30-23-22
16010 - 52
Electrical
City of Milpitas
WellUpgrades Program
McCandless Well Facility
3) Compare overload setting with motor full load current for proper size.
4) The Contractor shall fill in, for each piece of equipment, Test Form TF4 located in Appendix “A.”
b. Torque Connections
1) All electrical, mechanical and structural threaded connections inside equipment shall be tightened in the field after all wiring connections have been completed. Every worker tightening screwed or bolted connections shall be required to have and utilize a torque screwdriver/wrench at all times. Torque connections to the value recommended by the equipment
manufacturer. If they are not available, use NEC Annex I as guidelines.
c. Wire Insulation & Continuity Tests
1) All devices that are not rated to withstand the 500V megger potential shall be disconnected prior to the megger tests. 2) Meggerinsulation resistances of all 600 volt insulated conductors using a 500 volt megger for ten seconds. Make tests with circuits installed in conduit and isolated from source and load. Each conductor shall be meggered conductor to conductor and
conductor to ground. These tests shall be made on cable after installation with allsplices made up and terminators installed but not connected to the equipment.
3) Each megger reading shall not be less than 10 Meg-ohms resistive. Corrective action shall be taken if values are recorded less than 10 Meg-ohms. Values of different phases of conductors in the same conduit run showing substantially different Megohm values, even if showing above 10 Meg-ohms shall be replaced.
4) Each instrumentation conductor twisted shielded pair shall have the conductor and shield continuity measured with an
ohmmeter. Conductors with high ohm values, that do not match similar lengths of conductors the same size, shall be replaced at no additional cost to the City.
5) The Contractor shall fill in test forms Power and Control Conductor Test Form TF1 and Instrumentation Conductor Test Form TF2 located in Appendix “A.”
d. Grounding System Tests
1) Visual and Mechanical Inspection
a) Verify ground system isin compliance with drawings and specifications.

ATEEM – December 2024
270-30-23-22
16010 - 53
Electrical
City of Milpitas
WellUpgrades Program
McCandless Well Facility
2) Electrical Tests
a) Before making connections to the ground electrodes,
and before placement of sidewalks, landscape and
paving, measure the resistance of each electrode to
ground using a ground resistance tester. Perform the test not less than two days after the most recent rainfall and in the afternoon after any ground condensation (dew)
has evaporated.
b) After all individual ground electrode readings have been made, interconnect as required and measure the
system's ground resistance.
c) Perform point-to-point tests to determine the resistance between the main grounding system and all major
electrical equipment frames, system neutral, and/or
derived neutral points.
d) The grounding test shall be in conformance with IEEE Standard 81.
e) Plots of ground resistance shall be made and submitted to the Engineer for approval.
f) The current reference rod shall be driven at least 100 feet from the system under test.
g) Measurements shall be made at 10 feet intervals
beginning 25 feet from the test electrode and ending 75 feet from it in a direct line between the system being
tested and the test electrode.
h) The resistance between the main grounding electrode
and ground shall be no greater than five ohms for
commercial or industrial systems for generating or
transmission station grounds per IEEE Standard 142.
3) Test Values
a) Investigate point-to-point resistance values that exceed

0.5 ohms.
b) The Contractor shall fill in Grounding System Test Form TF3 located in Appendix “A.”
e. Panelboard Test
1) Visual and Mechanical Inspection:
a) Inspect for physical damage, proper anchorage and
grounding.
b) Compare equipment nameplate data with design plans
and starter schedule.
2) The Contractor shall fill in Panelboard Test Form TF5 located in Appendix “A.”

ATEEM – December 2024
270-30-23-22
16010 - 54
Electrical
City of Milpitas
WellUpgrades Program
McCandless Well Facility

7. Post Energization Tests
a. MCC Control System Tests
1) Component Tests
a) Measure insulation resistance of starter phase to phase and phase to ground with the starter contacts closed and the protective device open. Test voltage and minimum
acceptable values shall conform to NETA Section 3 "Test Values." Measure insulation resistance of each control
circuit with respect to ground.
b) Motor overload unitsshall be tested by injecting primary current through overload unit and monitoring trip time. c) Test the motor circuit protectors and thermal breakers as specified herein.
2) Control Tests
a) Remove motor overload heatersfrom each motorstarter
or disconnect pump/motor coupling. In case the motor
overload heaters are fed by current transformers, the
motor conductors shall be removed and insulated away
from the load lugs of the motor starter.
b) Verify the pump control circuits are wired and operate as shown on the elementary diagrams. Check the indicator
lights, alarm lights, local & remote selector switches, alarm contacts, power fail relays, overloads, etc., for proper operation.
c) Reinstall all heaters and all wiring removed for this test. 3) The Contractor shall fill in Operational Device Checks and Tests Form TF6 and MCC Device Test Form TF8 located in Appendix “A.” b. Breaker Test
1) All MCPs and breakers shall be checked for proper mounting, conductor size, and feeder designation. Operate circuit breaker to ensure smooth operation. Inspect case for cracks or other defects. Check tightness of connection with torque wrench in accordance with manufacturer's recommendations.
2) All Thermal magnetic (TM) breakers 100 amps and above shall be tested. Time current characteristic tests shall be performed bypassing three hundred percent (300%) rated current through each pole separately. Trip time and amps shall be determined.

Instantaneous pickup current shall be determined by run up or pulse method. Clearing times should be within four (4) cycles or less. At end of test the thermal breakers shall be set by Contractor for proper coordination.

ATEEM – December 2024
270-30-23-22
16010 - 55
Electrical
City of Milpitas
WellUpgrades Program
McCandless Well Facility
3) All MCPs breakers shall be tested by current injection method.

Time current characteristic tests shall be performed bypassing rated current of trip setting value through each pole separately.

At end of test the MCP breakers shall be set by Contractor to the proper multiple of the full load motor amp.
4) The ground fault protection system shall be performance tested when first installed on site per NEC 230.95(C). The test shall be conducted per manufacturer’s instructions.
5) Contact and Insulation Resistance: Contact resistance shall be measured and be compared to adjacent poles and similar
breakers. Deviations of more than 50% shall be reported to Engineer. Insulation resistance shall be measured and shall not be less than 50 megohms. All trip times shall fall within NETA Table values. Instantaneous pickup current levels should be within 20% of manufacturer's published values.
6) The Contractor shall fill in MCC Device Test Form TF8 and Breaker Test Form TF9 located in Appendix “A.”
c. Phase Rotation Tests
1) Check connections to all equipment for proper phase
relationship. During this test, disconnect all devices which could be damaged by the application of voltage or reversed phase sequence. Three phase equipment shall be tested for the phase sequence "ABC" front to back, left to right, and top to bottom. 2) All three phase motors shall be tested for proper phase rotation.

Revise wire color codes to indicate correct phase color if wires are swapped.
3) The Contractor shall fill in Phase Rotation Test Form TF7 located in Appendix “A.”
d. Motor Testing
1) Record the amperage draw on all phases of each motor operating under full load. Ensure that these values do not exceed the motor nameplate full load amperage.
2) Record the voltage between all phases of each motor operating under full load. If the voltage balance is not within plus or minus 5 percent of nominal,request the Utility power company or other responsible party to correct the problem.
3) The Contractor shall compile, by visual inspection of equipment installed for each motor, the following data in neatly tabulated form and be placed in the O&M manual:
a) Equipment driven.
b) Motor horsepower.
c) Nameplate amperes.
d) Service factor.

ATEEM – December 2024
270-30-23-22
16010 - 56
Electrical
City of Milpitas
WellUpgrades Program
McCandless Well Facility
e) Temperature rating.
f) Overload catalog number.
g) Overload current range and setting.
h) Circuit breaker rating.
i) Circuit breaker trip setting, for magnetic only circuit breakers.
4) The Contractor shall fill in Motor Test Form TF10 located in Appendix “A.”
e. Control System Tests
1) All the new I/O points for the PLC shall be tested by the supplier in the field for proper operation of alarms, status, analog, control, and operator display functions. Each of the control strategies shall be tested and demonstrated to City for compliance by the System Supplier. Testing shall be accomplished using simulated inputs only with prior written approval of the City.
2) All the I/O points for the PLC shall be tested by the City with assistance from Contractor for proper panel wiring. Where practical, the final element shall be used, i.e., trip the intrusion switch or change levels. During this task the Contractor shall have:
a) Qualified field technician with experience in the startup of similar systems to operate the PLC and other field
devices.
b) Test instruments asrequired.
c) A pair of radios for communication.
3) Electrical Tests:
a) Perform operational tests by initiating control devices to affect proper operation.
4) The Contractor shall fill in “I/O point Checkout Test Sheet” TF13 located in Appendix “A.”
f. Instrumentation Tests:
1) Instrumentation tests shall be conducted per the following criteria: As a minimum, all the tests indicated/specified on the test form TF14 in Appendix "A" shall be performed by the Contractor for each of the instruments listed in Section 16940 – Instrumentation. The overall accuracy of each instrument loop shall be checked to ensure that it is within acceptable tolerance. 2) Calibration stickers shall be supplied for all equipment and instruments. Calibration stickers shall list the following information:
a) Tag number.

ATEEM – December 2024
270-30-23-22
16010 - 57
Electrical
City of Milpitas
WellUpgrades Program
McCandless Well Facility
b) Calibrated by whom (name), firm, city and telephone
number.
c) Date calibrated.
d) Calibration range.
e) Comments.
3) The Contractor shall provide a minimum of two (2) hours of field acceptance testing for each instrument. If any instrument has not been fully tested during its allotted time, the Contractor shall provide additional hours for finishing testing of the instrument, to be paid by the Contractor.
g. Program Parameter Record:
1) The Contractor shall fill in “VFD” or Soft Starter “SSS” Program Parameter Record Sheet” TF16 for each VFD/SSS provided on this project. These parameter record sheets shall be filled out by a qualified System Supplier field technician when power in field is first applied to each VFD/SSS. Completion of VFD/SSS record sheetsshall be witnessed by City and copies proved to City on day records are filled in by Contractor. A copy of all completed VFD/SSS parameter record sheets shall be placed in O&M
manual.
h. VFD measurement and tests:
1) Measure the voltage and current 5th, 7th, 9th, 11th harmonics at the load side of the ATS with a harmonic analyzer with the each combination of pumps or as designated by City at start-up in operation on the utility source and Generator source. Measure and record the results, per the Harmonic Measurements Test Form TF12.

F. Fiber Tests:

1. Fiber Testing shall be performed prior to Energized Tests

2. Fiber Optic Standards
a. Fiber Optic Installation: field test requirements.
1) Provide all labor, materials, tools, field-test instruments and equipment required for the complete testing, identification and administration of the work called for in the Contract Documents. 2) In addition to the tests detailed in this document, the contractor shall notify the City or the City’s representative of any additional tests that are deemed necessary to guarantee a fully functional system. The contractor shall carry out and record any additional measurement results at no additional charge.
3) Testing shall be carried out in accordance with this document.

Thisincludes testing the attenuation and polarity of the installed

ATEEM – December 2024
270-30-23-22
16010 - 58
Electrical
City of Milpitas
WellUpgrades Program
McCandless Well Facility
cable plant with an optical loss test set (OLTS) and the installed condition of the cabling system and its components with an optical time domain reflectometer (OTDR). The condition of the fiber endfaces shall also be verified.
4) Testing shall be performed on each cabling link (connector to connector).
5) Testing shall be performed on each cabling channel (equipment to equipment) that is identified by the City.
a) Testing shall not include any active devices or passive devices within the link or channel other than cable,
connectors, and splices, i.e. link attenuation does not include such devices as optical bypassswitches, couplers, repeaters, or optical amplifiers.
6) All tests shall be documented including OLTS dual wavelength attenuation measurements for multimode and singlemode links and channels and OTDR traces and event tables for multimode and singlemode links and channels.
a) Optionally documentation shall also include optical
length measurements and pictures of the connector
endface.

3. Fiber Optic Performance Testing Parameters
a. All testing procedures and field-test instruments shall comply with applicable requirements of:
1) ANSI Z136.2, ANS For Safe Use Of Optical Fiber Communication Systems Utilizing Laser Diode And LED Sources.
2) ANSI/EIA/TIA-455-50B, Light Launch Conditions For Long-Length Graded-Index Optical Fiber Spectral Attenuation Measurements. 3) ANSI/TIA/EIA-455-59A, Measurement of Fiber Point
Discontinuities Using an OTDR.
4) ANSI/TIA/EIA-455-60A, Measurement of Fiber or Cable Length Using an OTDR.
5) ANSI/TIA/EIA-455-61A, Measurement of Fiber or Cable
Attenuation Using an OTDR.
6) ANSI/TIA/EIA-526-7, Optical Power Loss Measurements of Installed Singlemode Fiber Cable Plant.
7) ANSI/TIA/EIA-526-14-A, Optical Power Loss Measurements of Installed Multimode Fiber Cable Plant.
8) ANSI/TIA-568-C.0, Generic Telecommunications Cabling for Customer Premises.
9) ANSI/TIA-568-C.3, Optical Fiber Cabling Components Standard. 10) ANSI/TIA/EIA-606-A, Administration Standard for Commercial Telecommunications Infrastructure, including the requirements

ATEEM – December 2024
270-30-23-22
16010 - 59
Electrical
City of Milpitas
WellUpgrades Program
McCandless Well Facility
specified by the customer, unless the customer specifies their own labeling requirements.
b. Trained technicians who have successfully attended an appropriate training program, which includes testing with an OLTS and an OTDR and have obtained a certificate as proof thereof shall execute the tests. These certificates may have been issued by any of the following organizations or an equivalent organization:
1) Manufacturer of the fiber optic cable and/or the fiber optic connectors.
2) Manufacturer of the test equipment used for the field certification.
3) Training organizations (e.g., BICSI, A Telecommunications Association headquarters in Tampa, Florida; ACP [Association of Cabling Professionals™] Cabling Business Institute located in Dallas, Texas)
c. The City or the City’s representative shall be invited to witness and/or review field-testing.
1) The City or the City’s representative shall be notified of the start date of the testing phase five (5) business days before testing commences.
2) The City or the City’s representative may select a random sample of 5% of the installed links. The City or the City’s representative may test these randomly selected links and the results are to be stored in accordance with Part 3 of this document. The results obtained shall be compared to the data provided by the
installation contractor. If more than 2% of the sample results differ in terms of the pass/fail determination, the installation contractor under supervision of the representative shall repeat 100% testing at no cost to the City.
d. Submittals
1) Manufacturers catalog sheets and specifications for fiber optic field-test instruments including optical loss test sets (OLTS; power meter and source), optical time domain reflectometer (OTDR) and inspection scope.
2) A schedule (list) of all optical fibers to be tested. 3) Sample test reports.
e. Acceptance of test results
1) Unless otherwise specified by the City or the Citys representative, each cabling link shall be in compliance with the following test limits:

ATEEM – December 2024
270-30-23-22
16010 - 60
Electrical
City of Milpitas
WellUpgrades Program
McCandless Well Facility
2) Optical loss testing - Multimode links - The link attenuation shall be calculated by the following formulas as specified in ANSI/TIA568-C.0. a) Link Attenuation (dB) = Cable_Attn (dB) +
Connector_Attn (dB) + Splice_Attn (dB)
b) Cable_Attn (dB) = Attenuation_Coefficient (dB/km) *
Length (Km)
c) Connector_Attn (dB) = number_of_connector_pairs *
connector_loss (dB)
d) Maximum allowable connector_loss = 0.75 dB
e) Splice_Attn (dB) = number_of_splices * splice_loss (dB) f) Maximum allowable splice_loss = 0.3 dB
g) The values for the Attenuation_Coefficient (dB/km) are listed in the table below:

Type of Optical Fiber Wavelength
(nm)
Attenuation
coefficient
(dB/km)
Wavelength
(nm)
Attenuation
coefficient
(dB/km)
Multimode 62.5/125 µm 850 3.5 1300 1.5
Multimode 50/125 µm 850 3.5 1300 1.5
Single-mode (Inside plant) 1310 1.0 1550 1.0
Single-mode (Outside plant) 1310 0.5 1550 0.5
3) OTDR testing
a) Reflective events(connections)shall not exceed 0.75 dB. b) Non-reflective events (splices) shall not exceed 0.3 dB. 4) Magnified endface inspection
a) Fiber connections shall be visually inspected for endface quality.
b) Scratched, pitted or dirty connectors shall be diagnosed and corrected.
5) All installed cabling links and channels shall be field-tested and pass the test requirements and analysis as described in Section

8. Any link or channel that fails these requirements shall be diagnosed and corrected. Any corrective action that must take place shall be documented and followed with a new test to prove that the corrected link or channel meets performance
requirements. The final and passing result of the testsfor all links and channels shall be provided in the test results documentation in accordance with Section 8.F.

ATEEM – December 2024
270-30-23-22
16010 - 61
Electrical
City of Milpitas
WellUpgrades Program
McCandless Well Facility
6) Acceptance of the test results shall be given in writing after the project isfully completed and tested in accordance with Contract Documents and to the satisfaction of the City.
f. Note: High Bandwidth applications such as 1000BASE-SX, 10GBASE-S, and FC1200 impose stringent channel loss limits. Where practical, certification should consider loss length limits that meet maximum channel (transmitter to receiver) loss.

Performance specification for MM fiber at 850 nm
Fiber Type Bandwidt
h 1000BASE-SX 10GBASE-SR Fiber Channel 1200-MX-SN-I
µm (MHz•
Km)
Length
(m)
Loss
(dB)
Length
(m)
Loss
(dB)
Length
(m)
Loss
(dB)
OM1 62.5 200 275 2.38 33 2.5 33 2.4
OM2 50 500 550 3.56 82 2.3 82 2.2
OM3 50 2000 1000 3.56 300 2.6 300 2.6
g. Optical Fiber Cable Testers
1) The field-test instrument shall be within the calibration period recommended by the manufacturer.
2) Optical loss test set (OLTS)
a) Multimode optical fiber light source
(1) Provide dual LED light sources with central
wavelengths of 850 nm (30 nm) and 1300 nm
(20 nm)
(2) Output power of –20 dBm minimum.
(3) The light source shall meet the launch
requirements of ANSI/EIA/TIA-455-50B, Method
A. This launch condition can be achieved either
within the field test equipment or by use of an
external mandrel wrap (as described in clause
E.7 of ANSI/TIA-568-C.0) with a Category 1 light
source.
b) Power Meter
(1) Provide 850 nm, 1300/1310 nm, and 1550 nm
wavelength test capability.
(2) Power measurement uncertainty of  0.25 dB.
(3) Store reference power measurement.
(4) Save at least 100 results in internal memory.
(5) PC interface (serial or USB).

ATEEM – December 2024
270-30-23-22
16010 - 62
Electrical
City of Milpitas
WellUpgrades Program
McCandless Well Facility
c) Optional length measurement
(1) It is preferable to use an OLTS that is capable of
measuring the optical length of the fiber using
time-of-flight techniques.
3) Optical Time Domain Reflectometer (OTDR)
a) Shall have a bright, color-transmissive LCD display with backlight.
b) Shall have rechargeable Li-Ion battery for 8 hours of normal operation.
c) Weight with battery and module of not more than 4.5 lb. and volume of not more 200 in³.
d) Internal non-volatile memory and removable memory
device with at least 16 MB capacity for results storage. e) Serial and USB ports to transfer data to a PC.
f) Multimode OTDR
(1) Wavelengths of 850 nm ( 20 nm) and 1300 nm
( 20 nm).
(2) Event deadzones of 3.7 m maximum at 850 nm
and 1300 nm.
(3) Attenuation deadzones of 10 m maximum at 850
nm and 13 m maximum at 1300 nm.
(4) Distance range not less than 2000 m.
(5) Dynamic range at least 10 dB at 850 nm and 1300
nm
g) Fiber Microscope
(1) Magnification of 200X or 400X for endface
inspection
h) Integrated OLTS, OTDR and fiber microscope
(1) Test equipment that combines into one
instrument an OLTS, an OTDR and a fiber
microscope may be used.
h. Fiber Optic Installation: Execution
1) All tests performed on optical fiber cabling that use a laser or LED in a test set shall be carried out with safety precautions in accordance with ANSI Z136.2.
2) All outlets, cables, patch panels and associated components shall be fully assembled and labeled prior to field-testing. Any testing performed on incomplete systemsshall be redone on completion of the work.
3) Optical Fiber Cable Testing
a) Field-test instruments shall have the latest software and firmware installed.

ATEEM – December 2024
270-30-23-22
16010 - 63
Electrical
City of Milpitas
WellUpgrades Program
McCandless Well Facility
b) Link and channel test results from the OLTS and OTDR shall be recorded in the test instrument upon completion of each test for subsequent uploading to a PC in which
the administrative documentation (reports) may be
generated.
c) Fiber endfaces shall be inspected at 200X or 400X
magnification. 200X magnification is suitable for
inspecting multimode and singlemode fibers. 400X
magnification may be used for detailed examination of
singlemode fibers. Scratched, pitted or dirty connectors shall be diagnosed and corrected.
d) It is preferable that the endface images be recorded in the memory of the test instrument for subsequent
uploading to a PC and reporting.
e) Testing shall be performed on each cabling segment
(connector to connector).
f) Testing shall be performed on each cabling channel
(equipment to equipment)that is planned for use per the City’s instructions.
g) Testing of the cabling shall be performed using highquality test cords of the same fiber type as the cabling under test. The test cords for OLTS testing shall be
between 1 m and 5 m in length. The test cords for OTDR
testing shall be approximately 100 m for the launch cable and at least 25 m for the receive cable.
4) Optical loss testing
a) Backbone link
b) Multimode backbone linksshall be tested at 850 nm and 1300 nm in accordance with ANSI/EIA/TIA-526-14A,
Method B, One Reference Jumper or the equivalent
method.
c) Link attenuation does not include any active devices or passive devices other than cable, connectors, and splices, i.e. link attenuation does not include such devices as
optical bypass switches, couplers, repeaters, or optical amplifiers.
d) Use the One Reference Jumper Method specified by
ANSI/TIA/EIA-526-14A, Method B and ANSI/TIA/EIA-526-
7, Method A.1 or the equivalent method. The user shall
follow the procedures established by these standards or application notes to accurately conduct performance
testing.

ATEEM – December 2024
270-30-23-22
16010 - 64
Electrical
City of Milpitas
WellUpgrades Program
McCandless Well Facility
5) OTDR Testing
a) Fiber links shall be tested at the appropriate operating wavelengths for anomalies and to ensure uniformity of
cable attenuation and connector insertion loss.
b) Multimode: 850 nm and 1300 nm
c) Singlemode: 1310 nm and 1550 nm
d) Each fiber link and channel shall be tested in both
directions.
e) A launch cable shall be installed between the OTDR and the first link connection.
f) A receive cable shall be installed after the last link connection.
6) Magnified Endface Inspection
a) Fibers shall be inspected at 250X or 400X magnification. 250X magnification is suitable for inspecting multimode and singlemode fibers. 400X magnification may be used
for detailed examination of singlemode fibers.
7) Length Measurement
a) The length of each fiber shall be recorded.
b) It is preferable that the optical length be measured using an OLTS or OTDR.
8) Polarity Testing
a) Paired duplex fibers in multi-fiber cables shall be tested to verify polarity in accordance with Clause E.5.3 of
ANSI/TIA-568-C.0. The polarity of the paired duplex
fibers shall be verified using an OLTS.

4. Fiber Optic Test results documentation
a. Administration
1) Administration of the documentation shall include test results of each fiber link and channel.
2) The test result information for each link shall be recorded in the memory ofthe field-test instrument upon completion of the test. a) Test results saved within the field-test instrument shall be transferred into a Windows™-based database utility
that allows for the maintenance, inspection and
archiving of the test records. These test records shall be uploaded to the PC unaltered, i.e., “as saved in the fieldtest instrument”. The file format, CSV (comma separated value), does not provide adequate protection of these
records and shall not be used.
b) The test results documentation shall be available for inspection by the City or the City’s representative

ATEEM – December 2024
270-30-23-22
16010 - 65
Electrical
City of Milpitas
WellUpgrades Program
McCandless Well Facility
G. Operational Testing:
during the installation period and shall be passed to the City's representative within 5 working days of
completion of tests on cabling served by a
telecommunications room or of backbone cabling. The
installer shall retain a copy to aid preparation of as built information.
a) The database for the complete project, including
twisted-pair copper cabling links, if applicable, shall be stored and delivered on CD-ROM prior to City acceptance of the building. This CD-ROM shall include the software tools required to view, inspect, and print any selection of the test reports.
b) Circuit IDs reported by the test instrument should match the specified label ID (see Section 4.8 of this document). c) The detailed test results documentation data is to be provided in an electronic database for each tested optical fiber and shall contain the following information
d) The identification ofthe customersite asspecified by the City/Engineer
e) The name of the test limit selected to execute the stored test results
f) The name of the personnel performing the test
g) The date and time the test results were saved in the memory of the tester
h) The manufacturer, model and serial number of the fieldtest instrument i) The version of the test software and the version of the test limit database held within the test instrument
j) The fiber identification number
k) The length for each optical fiber
l) Test results to include OLTS attenuation link and channel measurements at the appropriate wavelength(s) and the
margin (difference between the measured attenuation
and the test limit value).
m) Test results to include OTDR link and channel traces and event tables at the appropriate wavelength(s).
n) The length for each optical fiber as calculated by the OTDR.
o) The overall Pass/Fail evaluation of the link-under-test for OLTS and OTDR measurements

1. After all the previous tests in this subsection are complete, the Contractor shall conduct operational testing.

ATEEM – December 2024
270-30-23-22
16010 - 66
Electrical
City of Milpitas
WellUpgrades Program
McCandless Well Facility

2. During operational testing the Contractor shall avoid surging discharge to the water distribution system.

3. The Contractor shall demonstrate operation of each part of the electrical, control and instrumentation systems to the satisfaction of the City. Tests shall be repeated by the Contractor at no additional cost to the City and at the discretion of the City to resolve whether the system has been demonstrated that it will operate under all modes of operations and varying conditions.

4. For the operational testing the new equipmentshall be activated to automatically run for 5 days, 24 hours per day, Monday through Friday. During this five day period the City will run the different combinations of the pump control options.

If equipment failure occurs during the 5 days of operational testing, the Contractor shall repair or replace the defective equipment and shall begin another 5 day operational test, Monday through Friday. This shall be continued until the new equipment functions acceptably for 5 consecutive days.

5. The Electrical Contractor, testing firm and System Supplier shall re-visit the jobsite as often as necessary until all field tests, start-up and operation tests are completed and approved.

H. Final Acceptance Trial Period: The system shall not be "final" accepted unless the system functions without hardware failures or software problems during a 30-day trial period, to the satisfaction of the City. The City reserves the right to restart the 30-day trial period, at their discretion, when a major hardware failure has occurred or a software problem has been identified. The City will notify the Contractor when the 30-day trial period has been satisfactory completed.

I. The completion of the above tests does not relieve the Contractor from warranties specified herein.

3.11 SPARE PARTS
A. The Contractor shall supply all spare parts prior to start of field tests. All parts shall be sealed in plastic bags and delivered to the site in a heavy duty plastic storage bag. Bag shall be clearly labeled with part name & number and the corresponding equipment tagname.

B. The Contractor shall make available any replacement parts that are not manufacturer's normalstock itemsfor immediate service and repair of all the instrumentation equipment throughout the warranty period.

C. The following spare parts shall be provided to the City prior to start of field test as part of this Contract:

1. Ten (10) fuses for each type of fuse.

2. Ten (10) lamps for each type of removable indicating light.

3. Two (2) relays with bases for each type of control, and time delay relay.

ATEEM – December 2024
270-30-23-22
16010 - 67
Electrical
City of Milpitas
WellUpgrades Program
McCandless Well Facility

4. One (1) power fail relay.

5. One (1) spare PLC DI, DO, AI and AO card of each type supplied.

6. One (1) spare Ethernet switch, communication module, and converter module of each type supplied.

7. In addition, any special PLC programming cables and card or module extenders shall be to be provided to City, at no additional cost.

3.12 TRAINING
A. All training sessions shall be held on dates and times agreeable to City. A total of 6 or fewer City personnel shall be trained.

B. Acceptable Operation and Maintenance Manuals shall be on site and available when training sessions are implemented.

C. The following training sessions shall be provided:

1. After Operation Testing has started the Contractor shall provide a period of not lessthan 8 hourstraining for instruction of operation and maintenance personnel in the use of all the new control and instrumentation systems. Training to include instruction on the use, operation, calibration, programming, and maintenance of the field devices listed in Appendix “B”. The Contractor shall make necessary arrangements with manufacturer's representative. Provide product literature and application guides for user's reference during instruction.

2. 4 hours – Arc Flash Training: The Supplier shall train City personnel of the potential arc flash hazards associated with working on energized equipment.

Maintenance procedures shall be in accordance with the requirements of NFPA 70E, Standard for Electrical Safety Requirements for Employee Workplaces and shall be provided in the equipment manuals.

3. 2 hours – “ATS” operating and maintenance procedures by System Supplier.

4. 2 hours – “Power Monitor” operating and maintenance procedures by System Supplier.

5. 4 hours – “VFD Setup” operating and maintenance procedures by System Supplier.

6. 40 hours (minimum) – “Operator” hands on SCADA and Operator Interface training. Training shall also include training on the new Operator Interfaces.

7. Eight (8) hours (minimum) – "Diagnostic and Calibration" training shall demonstrate PLC hardware diagnostic routines, test equipment, PLC communication setup, and test procedures as required to enable the personnel to detect and isolate system faults to the circuit board or module level and to implement repairs by replacing failed circuit boards or modules. Demonstrate uploading and downloading software to make backups and restore programs.

ATEEM – December 2024
270-30-23-22
16010 - 68
Electrical
City of Milpitas
WellUpgrades Program
McCandless Well Facility

3.13 WARRANTY
A. The Contractor shall warrant all electrical and instrumentation equipment & software for a period of one (1) year from date of final acceptance. Standard published warranties of equipment which exceed the preceding specified length of time shall be honored by the manufacturer or supplier.

B. The Contractor shall provide all labor and material to troubleshoot, replace, or repair any hardware or software that fails or operates unpredictable during the warranty period, at no additional cost to the City.

C. The Contractor shall have a staff of experienced personnel available to provide service on 2 working days’ notice during the warranty period. Such personnel shall be capable of fully testing and diagnosing the hardware & software and implementing corrective measures.

D. If the Contractor "failsto respond" in 2 working days, the City at its option will proceed to have the warranty work completed by other resources; the total cost for these other resources shall be reimbursed in full by the Contractor. "Fail to respond" shall be defined as: The Contractor has not shown a good faith effort and has not expended adequate resources to correct the problem. The use of other resources, as stated above, shall not change or relieve the Contractor from fulfilling the remainder of the warranty requirements.

E. Prior to "final acceptance," the Contractor shall furnish to the Engineer a listing of warranty information for all manufacturers of materials and equipment used on the project. The listing shall include the following:

1. Manufacturer's name, Material and equipment description, equipment number, part number, serial number, and model number.

2. Manufacturersservice contact person, phone number, and address.

3. Warranty expiration date.

F. Each time the Supplier's repair person responds to a system malfunction during the warranty period, he or she must contact the designated City maintenance supervisor for scheduling of the work, access to the jobsite, and permission to make repairs. Operation of facilities necessary to test equipment shall only be performed by or under the direction City staff. City reserves the right at its sole discretion to deny operations requested by the Supplier. A written description of all warranty work performed shall be documented on a field service report to be given to City prior to the repair person leaving job site. This field service report shall detail and clearly state problem, corrective actions taken, additional work that needs to be done, data, repair person name and company.

3.14 FINAL ACCEPTANCE
A. Final acceptance will be given by the City after the equipment has passed the "final acceptance trial period", each deficiency has been corrected, final documentation has been provided, and all the requirements of design documents have been fulfilled.

ATEEM – December 2024
270-30-23-22
16010 - 69
Electrical
City of Milpitas
WellUpgrades Program
McCandless Well Facility
B. At the end of the project, following the completion of all of the field tests, and prior to final acceptance, the Supplier shall:

1. Remove all temporary services, equipment, material, and wiring from the site.

2. Verify Service equipment has been legibly marked in field with the maximum available fault current per NEC 110.24 (A). Field marking shall include date the fault current calculation was performed and be weather & UV rated. Service equipment shall not be hand labeled.

3. Two sets of all keys for locks supplied on this project. Submit each key with matching duplicate. Wire all keys for each lock securely together. Tag and plainly mark with lock number or equipment identification, and indicate physical location, such as panel or switch number.

4. Verify that as-installed drawings, in reinforced clear plastic pockets, have been placed in all new or modified panels

5. Resubmit all Electrical System Analysis studies with all calculations rerun, data and graphs updated to reflect as-left conditions. Provide new Arc Flash labels to reflect as-constructed equipment and as-left circuit breaker settings.

6. Provide the following final documentation to the City:
a. A listing of warranty information.
b. Two (2) Electrical Systems Analysis USBs of as-builtset ofstudies, reports, settings, etc. and source files per Section 16605.
c. Operations and Maintenance Manual as specified herein. Each "operation and maintenance" manualshall be modified or supplemented by the Supplier to reflect all field changes and as-built conditions. At least one set of manuals, all software, disks and required programming cables shall be turned over to the City’s SCADA/Electrical division. d. Full size record drawings neatly marked accurately showing the information required herein
e. Two (2) disk copies of all final documentation to reflect as-built conditions.
f. Four (4) USB drives with copies of all final documentation to reflect asbuilt conditions.

ATEEM – December 2024
270-30-23-22
16010 - 70
Electrical
City of Milpitas
WellUpgrades Program
McCandless Well Facility
SECTION 16010
APPENDIX "A"

TEST FORMS
Index of Forms:

Bill of Materials
Scheduled Test Request Form
TF1 Power and Control Conductor Test Form
TF2 Instrumentation Conductor Test Form
TF3 Grounding System Test Form
TF4 Visual and Mechanical Inspection Form
TF5 Panelboard Test Form
TF6 Operational Device Checks and Tests Form
TF7 Phase Rotation Test Form
TF8 MCC Device Test Form
TF9 BreakerDevice Test Form
TF10 Motor Test Form
TF11 Factory Test MCC/Control Panel Checkout Form
TF13 I/O Point Checkout Test Form
TF14 Instrument Data Sheet and Calibration Record Test Form TF16 VFD or Soft Starter Program Parameter Record Sheet

BILL OF MATERIAL
PROJECT: DATE / /
LOCATION: PAGE

SPECIFICATION

SECTION
QTY
DESCRIPTION MFG. PART NUMBER
TAG
No.

SCHEDULED TEST REQUEST FORM
COMPANY PERFORMING TEST:

TESTING PERSONNEL :

PHONE NUMBER OF COMPANY:

TEST PROCEDURE SUBMITTAL: APPROVED : / /
SCHEDULED TEST DATE : DATE : / /

TIME DESCRIPTION OF TEST
8:00
9:00
10:00
11:00
12:00
13:00
14:00
15:00
16:00
NOTES:

TESTED BY :

WITNESSED BY:

DATE : / /

POWER AND CONTROL CONDUCTOR TEST FORM
TEST FORM (TF1)

EQUIPMENT
NAME : LOCATION :

CALIBRATION EQUIPMENT DATE:

DESCRIPTION

CONDUCTOR
NUMBER

INSULATION TESTS

PHASE TO GROUND PHASE TO PHASE

A B C AB BC CA
NOTES:

Record insulation test values in meg-ohms.

TESTED BY : DATE : / /
WITNESSED BY:

INSTRUMENTATION CONDUCTOR TEST FORM
TEST FORM (TF2)

EQUIPMENT
NAME : LOCATION :

CALIBRATION EQUIPMENT
DESCRIPTION :

DATE:

CONDUCTOR
PAIR
NUMBER

CONTINUITY TESTS INSULATION TESTS

CONDUCTOR
TO

CONDUCTOR

CONDUCTOR
TO
SHIELD

CONDUCTOR
TO

CONDUCTOR

CONDUCTORS
TO
GROUND*
SHIELD
TO
GROUND
NOTES:

Record continuity test values in ohms.
record insulation test values in meg-ohms.
* With both conductors tied together
TESTED BY : DATE : / /
WITNESSED BY:

GROUNDING SYSTEM TEST FORM
TEST FORM (TF3)
CALIBRATION EQUIPMENT DATE:

DESCRIPTION :

FALL IN POTENTIAL TEST
MAIN
GROUND

LOCATION

APPLIED

VOLTAGE
V

MEASURED
POINT 1

VOLTAGE

MEASURED
POINT 2

VOLTAGE

MEASURED
POINT 3

VOLTAGE

CALCULATED

RESISTANCE
OHMS

TWO POINTS TESTS

EQUIPMENT
NAME

EQUIPMENT
#

CIRCUIT
#

APPLIED

CURRENT

MEASURED

VOLTAGE

CALCULATED

RESISTANCE
OHMS
NOTES:

TESTED BY : DATE : / /
WITNESSED BY:

VISUAL AND MECHANICAL INSPECTION FORM
TEST FORM (TF4)

EQUIPMENT
NAME : LOCATION :

NAMEPLATE DATA
MFGR. : SERIES # :

MODEL # : U.L. # :

VOLTAGE : PHASE :

AMPERAGE : SERVICE :

BUS TYPE : BUS BRACING:

VERT. BUS : HORZ. BUS :

GND. BUS : NEU. BUS :

ENCLOSURE :

INSPECTION CHECK LIST
ENTER: A-ACCEPTABLE R-NEEDS REPAIR OR REPLACEMENT NA-NOT APPLICABLE

TIGHTEN ALL BOLTS AND SCREWS

TIGHTEN ALL WIRING AND BUS CONNECTIONS

VERIFY ALL BREAKERS AND FUSES HAVE PROPER RATING

CHECK BUS BRACING AND CLEARANCE

CHECK MAIN GROUNDING CONNECTION AND SIZE

INSPECT GROUND BUS BONDING

CHECK EQUIPMENT GROUNDS

CHECK CONDUIT GROUNDS AND BUSHINGS

INSPECT NEUTRAL BUS AND CONNECTIONS

CHECK HEATERS AND THERMOSTATS

CHECK VENTILATION AND FILTERS

CHECK FOR BROKEN OR DAMAGED DEVICES

CHECK DOOR AND PANEL ALIGNMENT

INSPECT ANCHORAGE

CHECK FOR PROPER CLEARANCES AND WORKING SPACE

REMOVE ALL DIRT AND DUST ACCUMULATION

INSPECT ALL PAINT SURFACES

CHECK FOR PROPER WIRE COLOR CODES

INSPECT ALL WIRING FOR WIRE LABELS

CHECK FOR PROPER WIRE TERMINATIONS

CHECK FOR PROPER WIRE SIZES

INSPECT ALL DEVICES FOR NAMEPLATES

CHECK IF DRAWINGS MATCH EQUIPMENT

CHECK ACCURACY OF OPERATION & MAINTENANCE
TESTED BY : DATE : / /
WITNESSED BY:

PANEL-BOARD TEST FORM
TEST FORM (TF5)
PANEL NAME: LOCATION :

NAMEPLATE DATA
MFGR. : SERIES # :

MODEL # : U.L. # :

VOLTAGE : PHASE :

AMPERAGE : SERVICE :

BUS TYPE : BUS BRACING:

VERT. BUS : HORZ. BUS :

GND. BUS : NEU. BUS :

ENCLOSURE : MAIN BKR :

CALIBRATION EQUIPMENT DATE:

DESCRIPTION :

INSULATION RESISTANCE TESTS - MEGOHMS

A-GND B-GND C-GND

INSPECTION CHECK LIST
ENTER: A-ACCEPTABLE R-NEEDS REPAIR OR REPLACEMENT NA-NOT APPLICABLE

TIGHTEN ALL BOLTS AND SCREWS

TIGHTEN ALL WIRING AND BUS CONNECTIONS

VERIFY ALL BREAKERS AND FUSES HAVE PROPER RATING

CHECK BUS BRACING AND CLEARANCE

CHECK MAIN GROUNDING CONNECTION AND SIZE

INSPECT GROUND BUS BONDING

CHECK EQUIPMENT GROUNDS

CHECK CONDUIT GROUNDS AND BUSHINGS

INSPECT NEUTRAL BUS AND CONNECTIONS

CHECK FOR BROKEN OR DAMAGED DEVICES

CHECK DOOR AND PANEL ALIGNMENT

INSPECT ANCHORAGE

CHECK FOR PROPER CLEARANCES AND WORKING SPACE

REMOVE ALL DIRT AND DUST ACCUMULATION

INSPECT ALL PAINT SURFACES

CHECK FOR PROPER WIRE COLOR CODES

INSPECT ALL WIRING FOR WIRE LABELS

CHECK FOR PROPER WIRE TERMINATIONS

CHECK FOR PROPER WIRE SIZES

INSPECT ALL DEVICES FOR PROPER LEGEND NAMEPLATES
CALIBRATION TEST EQUIPMENT PART NO. DATE CALIBRATED:

TESTED BY : DATE : / /
WITNESSED BY:

OPERATIONAL DEVICE CHECKS AND TESTS FORM
TEST FORM (TF6)
NAME : LOCATION :

CUB.
#

EQUIPMENT
NAME
EQUIP
#

LOCAL SITE DEVICE CHECKS AND TESTS REMOTE SITE DEVICE CHECKS & TESTS

SELECTOR
SWITCH

INDICATOR
LIGHTS

PUSHBUTTON
& LOS

METERING
& INDICATORS

OVERLOAD
RESET

INTERLOCKS
& CONTROL
ALARM
& STATUS

SELECTOR
SWITCH

INDICATOR
LIGHTS

PUSHBUTTON
& LOS
TESTED BY : DATE : / /
WITNESSED BY :

NOTES:

PHASE ROTATION TEST FORM
TEST FORM (TF7)

EQUIPMENT
NAME

EQUIPMENT
#

CIRCUIT
#

PHYSICAL
PHASE

LOCATION
PHASE
COLOR
CODE

MEASURED
PHASE

ROTATION
NOTES:

Use phase tester to verify all circuits and equipment have a clockwise A-B-C phase rotation.

Physical phase locations: Left to Right - LR or Top to Bottom - TB Phase color codes: Brown, Orange, & Yellow -BOY
Black, Red, & Blue -BkRBe
TESTED BY :

WITNESSED BY:

DATE : / /

MCC DEVICE TEST FORM
TEST FORM (TF8)
MCC # : CUBICLE :

EQUIP NAME: EQUIP # :

MOTOR DATA CONTACTOR DATA
H.P. :

F.L.A. :

MFGR. : PART # :

NEMA SIZE : COIL VOLT :

CALIBRATION EQUIPMENT DATE:

DESCRIPTION :

OVERLOAD TESTS
MFGR. : HEATER # : RANGE :

PART # : FINAL OVERLOAD SETTING:

TEST
AMPS
MEASURE TRIP TIME @ TEST AMPS MFGR LISTED

TRIP TIME

AMBIENT

PHASE A PHASE B PHASE C COMPENSATION

BREAKER TESTS
MRGR. : PART # : FRAME # :

CONTACT RESISTANCE TESTS - OHMS INSULATION RESISTANCE TESTS-MEGOHMS

PHASE A PHASE B PHASE C A-GND B-GND C-GND
MFGR TRIP TIME @300% MIN: BREAKER RATING / RANGE:

MFGR TRIP TIME @300% MAX: FINAL BREAKER SETTING:

MFGR INST. PICKUP AMPS:

TIME-CURRENT TEST
TRIP TIME IN SECONDS @ 300% AMPS INSTANTANEOUS TRIP TEST - AMPS

PHASE A PHASE B PHASE C PHASE A PHASE B PHASE C
NOTES:

TESTED BY : DATE : / /
WITNESSED BY:

BREAKER DEVICE TEST FORM
TEST FORM (TF9)
FEEDER : LOCATION :

EQUIP NAME: EQUIP # :

EQUIP H.P. : EQUIP KVA :

MFGR. : PART # : FRAME # :

VOLTAGE : INTERRUPT : CHARACTER:

RATING CURVE
CALIBRATION EQUIPMENT DATE:

DESCRIPTION :

CONTACT RESISTANCE TESTS - OHMS INSULATION RESISTANCE TESTS - MEGOHM

PHASE A PHASE B PHASE C A-GND B-GND C-GND
MFGR TRIP TIME @300% MIN : BREAKER RATING / RANGE:

MFGR TRIP TIME @300% MAX: FINAL BREAKER SETTING :

MFGR INST. PICKUP APMS:

TEST-CURRENT TESTS
TRIP TIME IN SECONDS @ 300% AMPS INSTANTANEOUS TRIP TEST - AMPS

PHASE A PHASE B PHASE C PHASE A PHASE B PHASE C

ADDITIONAL TESTS AND SETTING AS APPLICABLE

FUNCTION

PICKUP DELAY-TIME

RANGE SETTING RANGE SETTING

LONG TIME

SHORT TIME
GROUND FLT.

NOTES:

TESTED BY : DATE : / /
WITNESSED BY:

MOTOR TEST FORM
TEST FORM (TF10)

EQUIPMENT
NUMBER : NAME :

CALIBRATION EQUIPMENT DATE:

DESCRIPTION :

NAMEPLATE DATA - FIELD RECORDED
MANUFACTURER MODEL # SERIAL # FRAME #
H.P. R.P.M F.L.A VOLTS PHASE FREQ. P.F. S.F.

CODE N.E.M.A. INSUL. ENCLOSR. DUTY DESIGN

CALIBRATION EQUIPMENT
DESCRIPTION : DATE:

INSULATION TESTS

PHASE TO GROUND

MEG-OHMS

MOTOR FRAME

GROUNDING SYSTEM TEST
MOTOR
HEATER
MEAS.

AMPS
MOTOR

THERMAL
TRIP
TEST

APPLIED
VOLTS
MEAS.

AMPS
CALC.

A B C OHMS

MOTOR TESTS - MEASURED VALUES

AMPERAGE VOLTAGE POWER

A B C AB BC CA FACTOR WATTAGE
NOTES:

VOLTAGE, AMPERAGE, POWER FACTOR, & WATTAGE SHALL BE RECORDED WITH A TRUE RMS METER.

TESTED BY : DATE : / /
WITNESSED BY:

FACTORY TEST
MCC/CONTROL PANEL CHECKOUT FORM (TF11)
Manufacturer: Location:

Job No.:

Tel: Fax:

MCC / Control Panel: TEST RESULT
OVERALL PANEL INSPECTION Pass Fail

1. All front panel and back panel components mounted securely......................  

2. All wiring terminated and labeled correctly...................................................  

3. All components, wiring, and labeling accurately reflected on the drawings..

POWER-UP INSPECTION
 

1. Voltage levels on load side of circuit breakers...............................................  

2. Voltage levels at the DC terminals of the power supply................................  

3. Voltage levels at the DC power distribution terminals...................................  

POWER DISTRIBUTION AND GENERAL COMPONENT TESTING

1. Power distribution to the appropriate components.........................................  

2. Operation of the ancillary components such as receptacles, work lights, etc.  

CONTROL COMPONENTS CHECKS

1. Operators (push buttons, selector switches, pilot lights)................................  

2. Inputs from External Sources.........................................................................  

3. Outputs to External Sources...........................................................................  

4. Relay Logic.....................................................................................................  

5. PLC I/O and Program Verification.................................................................  

6. O/I Display Verification.................................................................................   Tested by: Witnessed by:

Date:

Notes:

1. For relay logic checks, each rung of the elementary or loop diagram is to be highlighted in yellow as they are verified for correct control functions.

2. For PLC I/O and program verification, the control strategies shall be highlighted in yellow as each logic function is tested.

I/O POINT CHECKOUT TEST FORM
TEST FORM (TF13)
I/O TYPE : LOCATION :

TEST EQUIPMENT : CAL. DATE :

I/O
POINT

TAGNAME
I/O
POINT

ADDRESS
TEST
INPUT
VALUE %

DISPLAY
VALUE %
PLC

REGISTER
VALUE

TEST RESULT

FAIL OR PASS

COMMENTS
DATE
OF

CORRECTIVE
0 50 100 0 50 100 ACTION
NOTES:

TESTED BY : DATE : / /
WITNESSED BY:

INSTRUMENTATION DATA SHEET AND CALIBRATION RECORD TEST FORM (TF14) Component Description
Component Tag Name
Manufacturer
Name
Model
Location
Site
Equip
Indicator Range
Input Range
Output Range
Range Unit
Designed Calibration
Serial #
Test Equipent
Description:

Calibration Date:

General Notes
1) Attach Calibration Curves for dp Flowmeters
2) Include mounting elevations for level Instruments
3) All entries within solid box to be typed in prior to start of test Measured Calibration
Input Signal Output Eng. Value Input Output Comments
Notes
Tested by (Print Name) Witnessed by (Print Name)
Signature Signature

Date / / Date / /

VFD OR SOFT STARTER PROGRAM PARAMETER RECORD SHEET
TEST FORM (TF16)

EQUIPMENT
NAME : LOCATION :

PARAMETER
NUMBER

PARAMETER

DESCRIPTION

DEFAULT

SETTING
FIELD

SETTING
NOTES:

TESTED BY : DATE : / /
WITNESSED BY:

ATEEM – December 2024
270-30-23-22
16010 - 73
Electrical
City of Milpitas
WellUpgrades Program
McCandless Well Facility

END OF SECTION

McCandless Well Facility

THIS PAGE LEFT INTENTIONALLY BLANK
ATEEM – December 2024 16010 - 74 City of Milpitas
270-30-23-22 Electrical Well Upgrades Program

ATEEM – December 2024
270-30-23-22
16110 - 1
Conduit, Boxes & Grounding
City of Milpitas
WellUpgrades Program
McCandless Well Facility
SECTION 16110

CONDUIT, BOXES & GROUNDING
PART 1 - GENERAL

1.01 SCOPE OF WORK
A. The Contractor shall install, ready for use, the conduit, devices, boxes, & grounding system as specified herein. This document describes the function and operation of the system and particular components, but does not necessarily describe all necessary devices. All components and devices shall be furnished and installed as required to provide a complete operable and reliable system for accomplishing the functions and meeting the performance set forth hereinafter.

B. Furnish all required labor, materials, project equipment, tools, construction equipment, safety equipment, transportation, test equipment, incidentals, and services to provide a complete and operational conduit, devices, boxes, & grounding system as shown on the Drawings, included in these Specifications, or required for fully operating facilities.

C. Work includes that specified in Section 16010 - Electrical.

D. The conduit, devices, boxes, & grounding system scope of work includes:

1. Provide and install miscellaneous trenching, conduits, junction boxes, field interconnection wiring, and associated hardware.

2. Provide all necessary hardware, conduit, wiring, fittings, and devices to connect the electrical equipment provided under other Sections.

3. Provide disconnect switches at all control panels and motors to disconnect all sources of power.

1.02 SUBMITTALS AND DRAWINGS
A. Provide submittals and drawings as specified in Section 16010 - Electrical, SUBMITTAL AND DRAWING REQUIREMENTS.

B. Submittalsfor the Conduit materials and equipmentshall include, butshall not be limited to, the following:

1. Catalog cuts showing manufacturer, catalog numbers, dimensions, weights and material for all raceway and accessories.

2. Dimensioned "as-built" Drawings of Contract Electrical plans.

3. Marked up “as-built” Conduit & Wire Routing Schedule.

4. Documentation showing equipment submitted to be installed in the chemical room is compatible with ammonium sulfate, sodium hypochlorite and ferric chloride.

ATEEM – December 2024
270-30-23-22
16110 - 2
Conduit, Boxes & Grounding
City of Milpitas
WellUpgrades Program
McCandless Well Facility

1.03 QUALITY ASSURANCE
A. Materials shall be of a manufacturer that has been fabricating and assembling specified raceway systems in his current facility for a minimum of two (2) years.

B. All materials selected for the manufacture of the hardware shall be the best available for the purpose for which they are used, considering strength, ductility, durability, and the best engineering practice.

C. All like parts shall be interchangeable.

PART 2 - MATERIALS

2.01 CONDUIT, RACEWAYS, AND WIREWAYS
A. GENERAL - Conduit, raceways, and wireways, wiring methods, materials, installation shall meet all requirements of the NEC, be UL labeled for the application, and meet the minimum following specifications.

1. All wiring shall be installed in conduits, raceways or wireways when interconnecting equipment and devices.

2. The Contractor shall use special conduit, raceways, wireways, construction methods, and materials as shown on the Contract drawings, which shall take precedence over any general methods and materials specified in this Section.

3. The minimum size conduit shall be 3/4-inch, unless indicated otherwise on the Drawings or for special connections to equipment.

4. Conduit stubs for future use shall be capped with coupling, nipple, and plug.

5. Conduitsto be abandoned that protrude above graded shall be cut flush and filled with grout.

6. Conduits shall not be filled to more than 50% of their total cross–sectional area.

7. Conduit drains for instruments shall be installed with GRS-PVC condulet-Ts with Stainless Steel Universal Conduit Drain, Appleton ECDB38 or approved equal.

Install in conduit locations where condensation may form.

8. Conduit Marking
a. All conduits(exceptreceptacle and lighting wiring)shall have conduit tags at both terminations of each conduit.
b. Conduit Tag –
1) Chemical Room - Tag material shall be be rigid laminated red phenolic with white lettering. The size of the tag shall be 2” diameter. No letters are allowed smaller than 7/16”. Securely fasten tags in place UV rated plastic ty-wraps. Conduit tags shall be Brady Custom B-1 or approved equal.
2) Non-Chemical Room - Tag material shall be 19 gauge brass or stainless steel tag with engraved lettering. The size of the tag shall be 2” diameter. No letters are allowed smaller than 7/16”.

Securely fasten tags in place using 316 stainless steel 0.048 inch diameter wire of the type normally used for this purpose (catalog

ATEEM – December 2024
270-30-23-22
16110 - 3
Conduit, Boxes & Grounding
City of Milpitas
WellUpgrades Program
McCandless Well Facility
cut sheet shall be submitted). Stainless steel wire shall be crimp connected. Twisting ends together is not acceptable. Conduit tags shall be Brady Valve Tags, or approved equal.
3) Engrave the tags, on both sides, with the conduit number as listed in the Conduit and Wire Routing Schedule on the Contract “E”-series Drawings.
4) Labeling shall be neatly installed for visibility and shall be clearly legible.
c. Each conduit listed in Conduit and Wire Routing Schedule shall have permanent tags where it enters an open transition point, junction boxes, terminal boxes, pullboxes, vaults, and manholes.
d. Prior to encasement, concealment, backfilling of conduits, temporary conduit labels shall be provided at each end of conduit. Temporary conduit labels shall have ½-inch (minimum) lettering at all transition points. After encasement and concealment temporary conduit labels shall be placed at each exposed end.

B. Galvanized Rigid Steel Conduit - (GRS)

1. Standard weight, zinc coated on outside by hot-dipping or sherardizing process, with either zinc coated or other approved corrosion resistant coating on inside.

Fabrication shall be hot-dip galvanized after fabrication, conforming to NEMA RN

1. 2. Provide galvanized rigid steel factory ells for 90 degree transitions.

3. Fittings shall be hot dipped galvanized steel or galvanized cast ferrous metal.

Provide threaded-type fittings, couplings, and connectors; set-screw type and compression-type are not acceptable.

4. All joints shall be treated with T & B "Kopr-Shield."

5. Conduits entering enclosures shall be fitted with insulated grounding bushing; OZ "HBLG", Appleton "GIB", or approved equal. All grounding bushings shall be tied to the grounding systemwith properly sized bonding conductors pertheNEC code.

6. EMT or IMC is not considered an equivalent to GRS.

7. GRS conduit is allowed only when specifically called out in the “Conduit and Wire Routing Schedule.”

8. Pipe straps for conduits larger than ¾” shall be two-hole pipe straps. ¾” conduits may have single-hole GRS-PVC pipe straps with clamp back spacer.

C. Galvanized Rigid Steel Conduit - PVC Coated (GRS-PVC)

1. Standard weight, galvanized conduit with a 40-mil thick polyvinylchloride coating bonded to both the outside and urethane interior coating. Conduit shall be hotdip galvanized conforming to NEMA RN 1. GRS-PVC conduit to be Robroy Plastibond Red or approved equal.

2. Provide PVC coated galvanized rigid steel factory ellsfor 90 degree transitions.

3. Fittings shall be hot dipped galvanized steel or galvanized cast ferrous metal with a PVC 40 mils thick coating. Provide threaded-type fittings, couplings, and

ATEEM – December 2024
270-30-23-22
16110 - 4
Conduit, Boxes & Grounding
City of Milpitas
WellUpgrades Program
McCandless Well Facility
connectors; set-screw type and compression-type are not acceptable.

4. All joints shall be treated with T & B type CP "Kopr-Shield", LPS No. 3 rust inhibitor or approved equal.

5. All junction and metal pull boxes shall be galvanized with exterior surfaces PVC coated to 40 mils thickness.

6. Conduits entering enclosures shall be fitted with insulated grounding bushing; OZ "HBLG", Appleton "GIB", or approved equal. All grounding bushings shall be tied to the grounding systemwith properly sized bonding conductors pertheNEC code.

7. PVC coating patching material shall be as provided by the manufacturer.

8. PVC coated Aluminum conduit is not acceptable.

D. PVC CONDUIT (PVC)

1. Minimum trade size one inch (1").

2. Shall be high impact schedule 40 or 80 (as specified in conduit schedule), polyvinylchloride suitable for use underground, direct burial and for use with 90 C wires, and shall conform to UL 651. Shall be UL listed and labeled for "direct" burial.

3. A copper bonding conductor shall be pulled in each raceway and bonded to equipment at each end with approved lugs.

4. Each underground run shall be placed in a trench with a minimum of four (4) inch sand bed evenly compacted on all sides, top and bottom.

5. Bends, elbows, and risers shall be made with galvanized rigid steel (GRS) or GRSPVC (as shown on Contract Drawings) conduit using threaded adapters. Bond each metallic portion to each other and to equipment connected at each end of conduit run.

6. PVC fittings shall have solvent-weld-type conduit connections.

7. PVC conduit shall be stored on a flat surface and shielded from the sun.

8. PVC conduit shall not be used above grade.

E. Liquid Tight Flexible Metal Conduit (FLEX)

1. Minimum trade size one-half inch (1/2").

2. Connectors: Appleton "STB" or approved equal through two inches (2") trade size. Appleton "ST", O-Z "4Q", or equal with insulated bushings for over two inches (2") trade size.

3. Suitable for connection of indoor or outdoor motors, controls, and mechanical equipment.

4. Shall be used for conduit coupling to all vibrating and shifting equipment.

5. Flexible conduit lengthsshall not be greater than 36 inches.

6. Flexible metallic conduit shall not be considered as a ground conductor, install a separate wire for equipment bonding.

7. Flexible conduit shall only be installed in exposed or accessible locations.

ATEEM – December 2024
270-30-23-22
16110 - 5
Conduit, Boxes & Grounding
City of Milpitas
WellUpgrades Program
McCandless Well Facility

8. Final connections to vibrating equipment such as motors and fans shall be made with flexible conduits.

F. Fittings

1. GRS Fittings: Fittings for GRS conduitsshall be threaded type. Set-screw type and compression-type are not acceptable. Fittings shall conform to the requirements of ANSI C80.4.

2. GRS-PVC Fittings: GRS-PVC fittings shall be hot dipped galvanized steel or galvanized cast ferrous metal with a PVC 40 mils thick coating. Provide threadedtype fittings, couplings, and connectors; set-screw type and compression-type are not acceptable. Fittings shall be Robroy Liquidtite, Perma- Cote or approved equal coated fittings.

3. Flex Fittings:
a. Non-NEMA 4X locations shall have cadmium-plated malleable iron body and gland nut with cast-in lug, brass grounding ferrule threaded to engage conduit spiral and O-ring seals around the conduit and box connection and insulated throat. Fittings, for not-NEMA 4X locations only, shall be Appleton "STB" OZ “4Q” or approved equal. b. NEMA 4X rated areas shall have PVC coated flex fittings and connectors.

2.02 DEVICES
A. Boxes

1. Device boxes shall be of zinc-galvanized steel type or cast aluminum with shape and size best suited for the particular application, rated for the location installed, and shall be supported directly to structure by means ofscrews, anchors, or bolts.

Device boxes shall be deep FD series.

2. Box dimensions shall be in accordance with size, quantity of conductors, and conduit clearances per NEC articles 314 requirements.

3. Boxes shall be located and placed according to City requirements.

4. All terminal and junction boxes shall be labeled identifying them by number shown on Contract Drawings engraved with ½” letters on nameplates meeting the requirements of Electrical 16010.

5. Non-Weatherproof Boxes:
a. Recessed boxesshall be flush with wall. Boxesfor fixturesshall not be less than four (4) inches square or diameter. Boxes for switches and receptacles shall be two and one-eight inch (2-1/8) deep. Provide plaster rings or box cover adapters for the wall surface finish. b. Surface boxes shall be cast ferrous, deep FD type.

6. Weatherproof Boxes:
a. Boxes located in NEMA 4X areas shall be stainless steel type rated NEMA 4X.
b. PVC-coated cast ferrous boxes may be used in place of 316 stainless steel boxes, except where boxes contain devices on cover. Boxesshall be deep, FD type. Single gang boxes shall have cast hubs.

ATEEM – December 2024
270-30-23-22
16110 - 6
Conduit, Boxes & Grounding
City of Milpitas
WellUpgrades Program
McCandless Well Facility

7. Boxes located in chemical room shall be PVC-coated cast ferrous. PVC electrical box may be used where boxes contain a device on the cover.

8. Explosion-proof Boxes:
a. Boxes shall be rated for Class 1, DIV 1 or 2 and weatherproof locations.

B. Switches

1. General purpose switches shall be manufactured in accordance with UL 20.

Switches shall be one pole rated, 20 amps, at 277 VAC. Bodies shall be of ivory phenolic compound supported by mounting strap having plaster ears. Switches shall have copper alloy contact arm with silver cadmium oxide contacts. Switches shall have slotted terminalscrews and a separate green grounding screw. Furnish Hubbell 1221, Leviton 1201-2, or approved equal.

2. Special purpose switches shall be provided with the amperage, voltage, and configuration as shown on the Drawings. Switches used as motor disconnects for single phase motors shall be horsepower rated.

3. Switches located in chemical room shall be PVC or compatible with the chemicals located within the room.

C. Receptacles

1. General purpose receptacles shall be duplex and rated 20 amps, 120 VAC, 2 pole, 3 wire grounding, NEMA 5-20R configuration, specification grade, and side wired to screw terminals. Face colorshall be brown in industrial areas and white or ivory in finished areas. General purpose receptacles shall be Bryant, Hubbell, or approved equal.

2. GFI (ground fault circuit interrupting) receptacles shall be used for providing power to miscellaneous cord powered equipment. GFI receptacles shall be duplex, 20A, 120V, with "test" and "reset" buttons with shallow design for mounting and standard screw terminals for direct wiring. Receptacles shall be designed, manufactured, and tested to prevent nuisance tripping from voltage spikes, RFI, EMI, or electronic component failures. Chaining multiple receptacles from one GFI unit is not acceptable. GFI receptacles shall be Arrow-Hart "specification grade" or approved equal.

3. Twist Lock Receptacle & Plug – Twist lock receptacle and plug shall be simplex, orange, rated for 20A, 240V, 2 pole, NEMA L-6-20R, locking receptacle, Industrial grade. Provide matching plug as required. Twist lock receptacle shall be Leviton 2320-IG, Arrow hart AHIG6210 or approved equal.

D. Device Plates and Covers

1. General purpose device plates and covers shall be anodized aluminum. Plates or covers shall be attached with stainless steel screws.

2. PVC coated device boxes shall have PVC-coated, gasketed covers.

3. Weatherproof switch, outlet, and receptacle boxes shall be fitted with anodized aluminum gasketed covers rated for wet locations in accordance with NEC 406.9.

Each access cover shall have a cover to maintain the weatherproof integrity even when a plug is connected to the receptacle. Final decision of type of access cover

ATEEM – December 2024
270-30-23-22
16110 - 7
Conduit, Boxes & Grounding
City of Milpitas
WellUpgrades Program
McCandless Well Facility
for specific location shall be per Engineer. Screws and hinge springs shall be stainless steel. Weatherproof access covers shall be Tay Mac, Hubbell, CrouseHinds, or approved equal.

4. Receptacle and light switch plates shall be stamped or engraved with 3/16” minimum lettersstating the panelboard name and circuit breakerfeeder number.

2.03 PULL BOXES
A. Boxes

1. Each box shall have type construction and shall be manufactured of stainless steel. Cover shall be attached with stainless steel screws. No devices, screws, rivets, or bolts shall protrude through the exterior surface unless specifically shown on the drawings. Provide larger box as required to accommodate the conduits and wire at no additional cost to the City. Boxes shall be Circle AW, or approved equal.

B. Underground Boxes

1. Underground pull boxes, where shown or required by length of conduit runs,shall be prefabricated concrete type with the size shown on the Drawings or larger to allow for adequate pull area. Extension sectionsshall be provided as necessary to reach the depth of underground conduits. All boxes shall have galvanized steel hold down bolts and hardware. Boxeslocated in paved areas or other areas which vehicles may travel shall be full H/20 loading rated and have traffic covers. Steel covers or lids shall be galvanized. Pull box covers shall be labeled power, signal, utility, and telephone, whichever applies. Ground pull box lid frame to bare copper ground ring per NEC 250. Pull boxes shall be Oldcastle Precast (Christy Concrete Products), Brooks or approved equal.

C. Provide larger pullboxes and junction boxes to accommodate the conduits and wires shown in the Conduit & Wire Routing schedule at no additional cost to City.

D. Provide nameplates for all boxes per Electrical 16010.

2.04 DETECTABLE WARNING TAPE
A. Plastic tape shall be colored for particular underground service, 3-inch minimum width, utilize tape made of material resistant to corrosive soil. Use red tape for “Electric” service and orange tape for “Communication” service. Use tape with printed wording listing type of service. Manufacturers and types: Seton, Blackburn, Griffolyn Co., Terra-Tape, Brady or equivalent.

2.05 CONDUIT SEAL
A. Seal around all conduits, wires, and cables penetrating between walls, electrical panels, ceilings, and floors in all buildings with a fire stop material. Seal shall be made at both ends of the conduit with a fire-stop putty. Seal shall have a minimum two hour rating.

Fire stop sealing shall be International Protective Coatings Flamesafe or approved equal.

B. Seal around conduits entering outside to inside structures and around bottom of free standing enclosures to maintain watertight integrity of structure.

ATEEM – December 2024
270-30-23-22
16110 - 8
Conduit, Boxes & Grounding
City of Milpitas
WellUpgrades Program
McCandless Well Facility
C. Place conduit seal inside each underground conduit riser into panels and enclosures to prevent entrance of insects and rodents.

D. Conduit entrances: Seal each conduit entrance from below grade into the panel and other electrical enclosures with plugging compound sealant to prevent the entrance of insects and rodents. Conduits between the enclosures shall be sealed with plugging compound sealant on each end. Plugging compound sealant shall be PRC-DeSoto (formerly Courtaulds) Aerospace Semco PR-868 or approved equal.

2.06 GROUNDING SYSTEM
A. The utility service entrance switchboard ground busshall be tied to a building ground grid consisting of a "UFFER" type grounding ring system as per Contract E-Series Drawings. “UFFER” ground shall be connected to building metal frame support and metal water pipe as applicable.

B. The UFFER shall consist of AWG bare wire laid in a grid as detailed on the Contract E-Series Drawings.

C. The main ground bonding wire from the ground shall extend up into the utility service entrance main switchboard for the visible connection with a UL approved "ground clamp" attached to the ground bus.

D. Network ground bond wires shall be connected from the UFFER ground to locations shown on Contract Drawings. The network ground bonding wires shall be bare copper sized as shown on Contract Drawings.

E. Ground rods shall not stub up more than 4” in the concrete pad.

F. The ground rod shall consist of not less than 10 continuous feet of 3/4 inch coppercoated, electroplated, high-grade carbon steel. The ground rod shall be a NEHRING type NCC, Weater 348 or approved equal. The ground rod shall extend up for visible connection of a UL approved “ground clamp” to the ground bus.

G. Provide a 13 inch diameter, 9-inch nominal throat, and concrete ground rod box, minimum 12 inches deep, with cast iron traffic cover embossed or engraved "GROUND." H. Resistance from grounded surface of the electrical system to the ground rod and to earth shall not exceed 5 ohms.

I. Ground clamps shall be bolt-on type as manufactured by ILSCO type AGC, O-Z Gedney Type GRC, Burndy Type GAR or GP, or approved equal.

J. Ground buses shall be provided in all electrical enclosures. Each ground bus shall be sized as shown on the Contract drawings or specified herein. The ground bus shall be adequately sized for the connection of all grounding conductors required per NEC. Screw type lugs shall be provided on all ground busses for connection of grounding conductors.

K. Each ground bus shall be copper. Screw type fasteners shall be provided on all ground busses for connection of grounding conductors. Ground bus shall be a Challenger GB series, ILSCO CAN series, or approved equal.

L. Attachment of the grounding conductor to equipment or enclosures shall be by connectors specifically provided for grounding. Mounting, support, or bracing bolts shall not be used as an attachment point for ground conductors.

ATEEM – December 2024
270-30-23-22
16110 - 9
Conduit, Boxes & Grounding
City of Milpitas
WellUpgrades Program
McCandless Well Facility
M. All raceway systems, supports, enclosures, panels, and equipment housings shall be permanently and effectively grounded.

N. One side of the secondary on all transformers shall be grounded.

O. The system neutral (grounded conductor) shall be connected to the system's grounding conductor at only a single point in the system. This connection shall be made by a removable bonding jumper sized in accordance with the applicable provisions of the National Electrical Code if the size is not shown on the Drawings. The grounding of the system neutral shall be in the enclosure that houses the service entrance main overcurrent protection.

P. The system neutral conductor and all equipment and devices required to be grounded by the National Electrical Code shall be grounded in a manner thatsatisfiesthe requirements of the National Code.

Q. Grounding conductors shall be sized as shown on the Plans or in accordance with NEC Table 250.122, whichever is larger.

R. Grounding and bonding wires shall be installed in all PVC conduits and nonmetallic raceways and connected to the ground bus and all equipment.

S. Conduit grounding bushings shall be installed on all metallic conduits. Conduit grounding bushings shall be set screw locking type electra-galvanized malleable iron with insulation collar and shall be provided with a feed through compression lug for securing the ground bonding wire. Ground bonding wire shall be bare wire and shall be sized per NEC. Bonding wires at endpoints shall be connected to enclosure ground bus or equipment grounding lug.

T. All receptaclesshall have their grounding contact connected to a grounding conductor.

U. Negative side of all VDC power supplies shall be grounded.

V. Branch circuit grounding conductors for receptacles or other electrical loads shall be arranged such that the removal of a lighting fixture, receptacle, or other load does not interrupt the ground continuity to any other part of the circuit.

PART 3 - EXECUTION

3.01 CONDUIT AND RACEWAY INSTALLATION
A. Conduit and Raceway Requirements:

1. Care shall be exercised to avoid interference with the work of other trades. This work shall be planned and coordinated with the other trades to prevent such interference. Pipes shall have precedence over conduits for space requirements.

Exposed conduits shall be neatly arranged with runs perpendicular or level and parallel to walls. Bends shall be concentric.

2. Exposed conduits runs shall not be run directly on the ground. Secure conduits to 316 stainless steel unistrut.

3. Install conduit free from dents and bruises.

4. All conduits shall be labeled with conduit tags on all ends; at junction boxes, pull boxes, enclosures, stub-outs, or other terminations. All spare conduits shall be labeled.

ATEEM – December 2024
270-30-23-22
16110 - 10
Conduit, Boxes & Grounding
City of Milpitas
WellUpgrades Program
McCandless Well Facility

5. Install an accessible raceway and conduit system for connection of all boxes, panelboards, cabinets, and equipment.

6. All conduit and raceway shall be the size and type as shown on Conduit and Wire Routing Schedule. In no case shall the conduit size be smaller than that shown, except as follows:
a. All exposed conduitsinNEMA 4X areas(exceptforindoor corrosive areas) and outdoor locations shall be GRS-PVC.
b. All exposed conduits in NEMA 12 areas shall be GRS.
c. All exposed conduits in indoor NEMA 4X corrosive areas shall be PVC-80.

7. Conduits connected to boxes, cabinets, etc., outdoors, exposed to weather or in areas subject to excessive moisture shall be fitted with watertight sealing hubs of steel or malleable iron with sealing ring and insulated throat, Myers hub, Thomas and Betts 370 Series, or approved equal.

8. Malleable iron threaded grounding bushing, with insulated throat and set screw solderless lugs, Appleton GIB-XXXSL series shall be placed on the end of all rigid conduits. A ground bare copper wire shall bound each bushing to the enclosure ground bus.

9. All of the entries for each line in the conduit schedule apply to each conduit when multiple quantity of conduits (quantity of which are indicated by number entered in conduit no. column in schedule) are listed in the schedule.

10. Matching Existing Facilities:
a. When new conduit is added to areas which are already painted, the conduit and its supports shall be painted to match the existing facilities. b. Where new conduit is used to replace existing conduit, the existing conduit and supports shall be removed, resulting blemishes shall be patched and repainted to match original conditions.
c. If existing conduits are to be reused and rerouted, resulting blemishes shall be corrected in the same manner.
d. All existing conduits that are reused:
1) Shall have a mandrel or conduit piston pulled through the entire conduit run to prove the length contains no blockages or obstructions. Mandrelling shall be witness by the City. 2) Install new conduittagsforreused conduits at all transition boxes and endpoints. Conduit & Wire Routing Schedule shall be updated as these modifications take place.

B. Exposed Conduit:

1. All exposed conduitsshall be run in straight lines parallel to column lines, walls or beams. Where conduits are grouped, the bends and fittings shall be installed so as to present an orderly appearance. Unnecessary bending or offsets shall be avoided. Conduits shall be kept at least 12 inches away from heating devices or similar equipment.

2. Supports for exposed conduit shall be in accordance with Title 24, CAC.

3. Support rigid conduits at 8 feet intervals and PVC conduits at 4 feet intervals.

ATEEM – December 2024
270-30-23-22
16110 - 11
Conduit, Boxes & Grounding
City of Milpitas
WellUpgrades Program
McCandless Well Facility
Support all conduits within 1 foot of boxes or changes in direction. Use riser supports with clamps for vertical conduit risers.

4. For single conduit runs, use pipe straps or suspend from ceiling with single conduit hangers. Single hole GRS-PVC pipe straps with backplates may be used for horizontal runs on vertical surfaces. Perforated strap (plumber's tape), not acceptable.

5. For multiple conduit runs, group conduits together and support from ceiling by means of trapeze hangers. Wall brackets or unistrut supports shall be used for conduit runs on verticalsurfaces. Clamp each conduit to trapeze orsupport, using conduit clamp.

6. Fasten hanger rodsto structural steel members with beam clamps or to concrete inserts set flush with surface. Install reinforcing rod through opening in concrete insert.

7. Exposed conduit shall be supported rigidly in place. All exposed conduit shall include, where required, the drilling of holes in the bottom orsides of enclosures.

The Contractor shall thoroughly examine work prior to drilling to avoid drilling into components within enclosures.

8. Conduitsinstalled outdoor or in NEMA 4X rated areas above grade shall be braced in place with stainless steel Unistrut stanchions or PVC coated clamps with backplates.

9. Vertical offsets and sloping of conduits are not detailed on plans; the Electrical Contractor shall include in his bid the price for the complete conduit run utilizing the civil & mechanical plans to measure vertical & slope distances.

10. Exposed conduits runs shall not be run directly on the ground or roof. Secure conduits to stainless steel Unistrut.

11. Duct-taping conduits together is not acceptable. Conduits, installed into concrete pads, shall be installed with a minimum of 2” distance between conduits to allow installation of bushings.

C. Conduits in Concrete Slabs:

1. Conduits may be installed in structural slabs, or in slabs on grade, having the following minimum thickness: 2½" thick for ½" conduit, 4 thick for conduits greater than ¾".

2. Maintain a minimum of two-inches of clearance between conduits and any reinforcement bars. In structural slabs, place conduits carefully between upper and lower layers of steel. In pre-stressed concrete slab construction, place conduits in center of slab and do not support from pre-stressed steel.

3. Space conduits to maintain structural integrity of slabs.

4. Place conduits running parallel to slab supports (beams, columns, walls, etc.) not less than 12" from such supports.

5. Where floor slab is in direct contact with earth or fill, rigid steel conduit may be embedded in concrete blister below bottom of slab with 2-inch minimum of concrete cover.

ATEEM – December 2024
270-30-23-22
16110 - 12
Conduit, Boxes & Grounding
City of Milpitas
WellUpgrades Program
McCandless Well Facility

6. Runs of conduit to be embedded in concrete shall be rigidly supported in their proper positions while concrete is being placed. Place conduit separators every 4 feet on centers and securely anchor to prevent movement. Ends of conduits shall be plugged or capped during construction to prevent the entrance of concrete or other foreign matter. Connections shall be checked for tightness before being embedded.

D. Underground Conduits:

1. Buried conduit shall be placed at least 24 inches below grade and be located to avoid interference with other underground piping, foundations, etc. Conduit for Telephone and Power Utilities shall be set to depth as required by Utility engineered drawings and not less than 36” below grade. All conduits entering or leaving the ground shall be sealed to prevent condensation of moisture inside the conduit. Conduit entrances in the bottom of MCCs, power distribution panels, switchboards, and enclosures shall project into the enclosure a minimum of two inches to prevent water from entering conduits.

2. All conduits entering or leaving the ground shall be sealed to prevent condensation of moisture inside the conduit. Conduit entrances in the bottom of MCCs, power distribution panels, switchboards, and enclosures shall project into the enclosure a minimum of two inches to prevent water from entering conduits.

Expanding foam shall NOT be used.

3. Conduit placed in concrete which is in contact with earth or water shall be adequately separated from the earth or water by at least 3" of concrete. Concrete encasement shall extend 4" above finished grade or into housekeeping pad at completion of each run.

4. Install expansion couplings in conduit runs crossing expansion or contraction joints in concrete. Expansion couplings shall be zinc coated and watertight.

5. Where other piping systems are encountered or being installed along a raceway route, maintain a 12-inch-minimum vertical separation between raceways and other systems at crossings. Maintain a 12-inch-minimum separation between raceways and other systems in parallel runs. Do not place raceways over valves or couplings in other piping systems. Refer conflicts with these requirements to the City's Representative for instructions before further work is done.

6. Underground conduits not encased shall have a minimum 4” sand bedding completely encircling the conduits.

7. Contractor to supply and install all conduits and wiring as shown on Utility Engineered Design drawings. Utility primary and secondary conduit and wiring shown in “Conduit and Wire Routing Schedule” is for bid purposes only. A credit or add-on will be provided by Contractor based on the actual work performed by Contractor for the Utility service.

E. Raceway Identification:

1. All conduits and raceways listed in Conduit and Wire Routing Schedule shall have conduit tags at both terminations of each conduit. All conduits and raceways listed in Conduit and Raceway Schedule shall be provided with conduit tags with tag numbers listed in schedule. All spare conduits shall be labeled. Spare conduits that have prefix “X” with a conduit quantity greater than one shall have a unique

ATEEM – December 2024
270-30-23-22
16110 - 13
Conduit, Boxes & Grounding
City of Milpitas
WellUpgrades Program
McCandless Well Facility
conduit postfix number assigned to each conduit; i.e., if conduit quantity is 3 for conduit route X0001, then label conduits as X0001A, X0001B, X0001C.

2. Conduit terminating in walls shall be identified by stenciling the conduit number on the wall directly under the conduit.

3. Prior to encasement, concealment, backfilling of conduits, temporary conduit labels shall be provided at each end of conduit. Temporary conduit labels shall have ½-inch (minimum) lettering at all transition points. After encasement and concealment temporary conduit labels shall be placed at each exposed end.

4. Each conduit listed in Conduit and Wire Routing Schedule shall have permanent tags where it enters an open transition point, junction boxes, terminal boxes, pullboxes, vaults, manholes enclosures, stub-outs or other terminations.

F. Workmanship and Installation Requirements:

1. Where field changes are required, every precaution shall be taken to ensure that the change is coordinated with other conduit, structural, plumbing, and piping work. Information shall be obtained regarding the completed raceway runs to ensure that there will be no interference when the raceway run is extended or revised. A complete record ofsuch changesshall be made on the Record Contract Drawings.

2. Conduits shall be cut square, threaded and reamed to remove sharp or rough edges and burrs. No running threads will be allowed. Conduit joints and connections shall be made waterproof and rustproof by application of a noninsulating thread compound, such as white lead or graphite, and zinc sealingmaterial. Each threaded joint shall be thoroughly cleaned to remove cutting oil before the compound is applied.

3. All bends and offsets, where required, shall either be made with factory made bends or shall be field bends made with a conduit bender designed specifically for use with the type of conduit to be bent. Elbows and bends for conduits shall be formed in the field and shall be reasonably free from flattened surfaces, indentations, or kinks. Avoid field bends and offsets where possible. Heating of conduit to facilitate bending shall not be acceptable. Metallic conduits shall be bent cold to prevent damage to the protective coating. All bending shall be gradual and be done smoothly to permit the pulling on insulated electrical wires and cables without incurring damage to the insulation or sheath. Radius of curvature shall be not less than that permitted by NEC.

4. Conduit shall be rigidly secured to panels and other electrical equipment terminal boxes with locknuts and bushings in such a manner that each system shall be electrically continuous throughout.

5. Flexible liquid-tight metal conduit shall be used to provide flexible connections between the rigid system and motor conduit boxes or other equipment subject to vibration.

6. To reduce damage to the zinc coating, only strap type wrenches shall be used. All wrench marks, field cut threads, and all other places where the zinc coating is damaged, shall be repaired with zinc-rich galvanizing repair compound.

7. Raceway shall be installed with necessary fittings and supports.

ATEEM – December 2024
270-30-23-22
16110 - 14
Conduit, Boxes & Grounding
City of Milpitas
WellUpgrades Program
McCandless Well Facility

8. After installation of all conductors, all underground conduit ends into enclosures shall have a conduit seal placed around wires inside conduit.

9. Grout around conduit tie-ins entering walls of building structure for watertight seal.

10. Contractorshall limit the number of directional changes of the conduit to total no more than the equivalent of 270 degrees in any run between pull points. Where required for ease of pulling and as necessary to meet code, the Contractor shall supply and install junction or pullboxes even though not shown on Drawings at no additional cost to the City.

11. Conduit runs between two vaults, pull or junction boxes shall be limited to a maximum of 300 feet, or less 50 feet for every 90 degrees of conduit change in direction. Install pull boxes where required to limit bends in conduit runs to not more than 270 degrees or where pulling tension would exceed the maximum allowable for the cable. Provide additional vaults, pull or junction boxes as necessary even though not shown on Drawings at no additional cost to the City.

12. Install and equip conduits and fittingsinstalled outdoors or in other wet locations, entering equipment from bottom unless necessary to enter from side, so as to prevent water from entering the equipment. Top entry of conduits into enclosures located outdoors or in other wet locations is not allowed.

13. Spare or Future Conduits:
a. All spares shall be mandrel and have pull ropes installed. b. Provide a braided yellow polypropylene pull ropes with 1’ distance markers, ¼” minimum size.
c. Provide a waterproof label on each end of the pull cords and at transition pull boxes to indicate the destination of the other end. d. Provide caps on conduit ends to prevent entrance of dirt or insects.

14. Contractor shall neatly bundle all new and reused wires with ty-wraps. Ty-wraps shall not be located in conduits. All tape used for bundling wiresshall be removed after installation in conduit.

15. Conduit stubs for future use shall be capped with coupling, nipple, and plug.

16. Seal all conduits to prevent water traveling through conduits into buildings, junction boxes, underground facilities, electrical enclosures, panels, instruments or any other boxesthat house electrical and instrumentation components. Install conduit drain boxes and plug conduit interior to form an effective barrier to keep out water traveling into equipment located below grade.

17. Conduit between vibrating equipment and outlet boxes or conduitsshall be liquid tight flexible electrical conduits.

18. Whenever possible, make bends for exposed conduit stub-ups completely below the surface. Make stubs vertical and arrange neatly.

19. Where conduits turn up in accessible floor areas or under removable partitions, install coupling flush with finish floorsurface (exclusive of floor covering). Provide flush threaded plug in this coupling where conduit is not to be extended.

20. For flush mounted panels, run empty conduits from panel to accessible spaces

ATEEM – December 2024
270-30-23-22
16110 - 15
Conduit, Boxes & Grounding
City of Milpitas
WellUpgrades Program
McCandless Well Facility
above. Install a minimum of one ¾" conduit for every 3 single pole spare circuit breakers or spaces, or fraction thereof.

21. Running Threads: Do not use running threads. Where such device is needed, use rain tight unions or concrete tight couplings.

22. The entire electrical raceway system shall be bonded and form a continuous metallic electrical conductor from service point to every box and shall be terminated with ground bushings connected to the ground bus. Conduits entering enclosures shall be fitted with locknuts and insulated grounding bushing. All grounding bushings shall be tied to the grounding system with properly sized bonding conductors per the NEC Code.

23. Connection to steel conduit from PVC shall be made with approved threaded adapters.

24. All conduits which are installed shall be capped during construction to prevent the entrance of foreign material.

25. Secure hangers, brackets, conduit straps, supports and electrical equipment by means of toggle bolts on hollow masonry; expansion shields and machine screws or standard preset inserts on concrete or solid masonry; machine screws or bolts on metal surfaces; wood screws on wood construction. Wood or fiber plugs or concrete nails, not acceptable.

26. Special “Soft–Jaw” type pipe clamps shall be used to prevent damage to PVCcoated conduits while field threading, cutting to length, and coupling sections.

G. Warning Tapes:

1. Bury detectable warning tapes approximately 12 inches above all underground conduit runs of two or more outside of building. Align parallel to and within 3 inches of the centerline of the conduit or duct bank.

H. Cutting and Patching:

1. The Contractor shall do all core drilling, cutting, and patching required to install his work at no additional cost to the City. Core drilling, cutting, and patching is considered standard work to be done at existing facilities, therefore, this work is not specifically called out on Drawings. Any core drilling or cutting which may impair the structure shall require prior approval by the Engineer. Core drilling, cutting, and patching shall be done only by skilled labor of the respective trades.

All surfaces shall be restored to their original condition after core drilling, cutting, and patching and made watertight.

I. Excavation and Back Filling:

1. At all times during the excavation and backfilling, the Contractor shall provide barricades, fences, guard rails, etc., to safeguard authorized personnel, and the general public from excavated trenches.

2. Repave any area that was paved prior to excavation. Backfill and surface all areas as shown on the Drawings or where not shown to the original condition that was present prior to the excavation.

3. Excavations: Provide the excavation for Utility power and telephone services,

ATEEM – December 2024
270-30-23-22
16110 - 16
Conduit, Boxes & Grounding
City of Milpitas
WellUpgrades Program
McCandless Well Facility
electrical, and instrumentation equipment foundations and trenches for conduits and duct banks, as necessary. Backfill and surface all areas in accordance with other Contract Sections. Excavations shall be also be in accordance with other Contract Sections.
a. Underground conduits outside of structures, excluding utility conduits, shall have a minimum cover of 24 inches. Utility power and telephone conduits shall have a minimum cover of 36 inches.
b. Trenches for all conduits below floor slabs and underground shall be excavated to the required depths. Conduits under floor slabs shall have trenches no deeper than is required to properly contain bends within walls.
c. All trenching and underground work shall be closely coordinated with the City and Engineer. Contractor shall be responsible for locating, and avoiding disruption of, all existing underground facilitiessuch as gaslines, water lines, sewer, fire protection lines, and existing underground electrical facilities. Any damage caused by the Contractor must be repaired at the Contractor’s cost, to the satisfaction of the City. d. All trenching shall be done as to minimize disruption to normal plant or construction operations. All open trenches shall be suitably marked and/or protected to avoid any accidents or injuries to workers or plant personnel.
e. Where new electrical ducts intersect existing facilities, at essentially the same depth, Contractor shall gradually divert the electrical facilities down, under, and back up around the existing facilities. f. All excavations shall be backfilled and resurfaced to match surfaces prior to and adjacent to excavation.

4. Back filling shall be done only after conduits have been inspected by City. If the conduits have been covered before inspection, the City may require the Contractor to uncover the conduits for inspection at no additional cost to the City or extension of Contract time. Excavation and back fill of lines and conduits shall conform to the requirements of the Earthwork Section of these Specifications, unless modified on plans.
a. Backfill, Non-Paved Areas: Use native backfill, compacted in 6 inch layers to 90 percent relative compaction. Final backfill elevation shall match existing.
b. Backfill, Paved Areas:
1) Use clean imported sand rated for use under paved areas. 2) Imported sand shall be free from organic material, trash, debris and rubbish.
3) Compact trench backfill by manual methods. Water flooding or jetting is not permitted.

5. At all times during the installation of the electrical distribution system, the Contractor shall provide barricades, fences, guard rails, etc., to safeguard all personnel, including small children, from excavated trenches.

3.02 GROUNDING INSTALLATION

ATEEM – December 2024
270-30-23-22
16110 - 17
Conduit, Boxes & Grounding
City of Milpitas
WellUpgrades Program
McCandless Well Facility
A. System:

1. Install all products per Section 16010 – Electrical, INSTALLATION.

2. Provide a separate grounding conductor in each raceway, securely grounded to equipment at each end of raceway.

3. Bond piping and building structure to grounding electrode per NEC.

4. Contractor shall not conceal or cover any ground connections until the Engineer or City has established that every grounding connection conforms to the Contract Drawings and Specifications and has given the Contractor written confirmation.

5. Test grounding per Section 16010 - Electrical.

6. Grounding details shown on plans are minimum. If additional equipment, such as ground rods, clamps, conductors, etc., is required per NEC, Title 24, CAC, furnish and install same without additional cost to City.

7. Ground all swinging gates, fences electrical panel doors and MCC bucket doors using UL approved ground clamps specifically designed for the grounding purpose. Strap metal is not acceptable for grounding.

B. Connections:

1. Use U.L. approved cast bronze ground clampsspecifically designed for grounding purposes. Strap metal is not acceptable for grounding or bonding.

2. Exposed connections to ground buses, raceways, and small pipes shall be made by means of U.L. approved grounding clamps. Exposed connections between different metalsshall be sealed with No-Oxide Paint Grade A, or approved equal.

3. All buried, ground rod, large pipe, and steel plate or frame ground bond connections shall be made by welding process equal to Cadweld.

C. Electrical Equipment Grounding:

1. Metal conduits shall be bonded together to the enclosure ground bus.

2. Lightning arresters or suppressors shall be directly connected to the ground system using copper conductors, sized as per manufacturer’s literature.

3. All motors shall be grounded by bonding the grounding conductor within the raceway to the motor frame. Motors as shown on Electrical Plans shall also have a supplemental grounding conductor bonded to the ground grid in the immediate area of the motor.

4. Each panelboard shall be equipped with a ground bus secured to the interior of the enclosure. The bus shall be equal to panelboard neutral bus amp rating and shall have adequate lug quantity of lugs. No more than two grounding conductors shall be installed per lug.

5. All metal panel doors shall be installed with ground straps, including all MCC bucket doors.

D. Excavation and Back Filling:

1. Trenches for all bare copper ground bond wires shall be excavated to a minimum depth of 24”.

ATEEM – December 2024
270-30-23-22
16110 - 18
Conduit, Boxes & Grounding
City of Milpitas
WellUpgrades Program
McCandless Well Facility

2. Back filling shall be done only after grounding system has been inspected.

Excavation and back fill of grounding system shall conform to the requirements of the Earthwork Section of these Specifications.

3. At all times during the installation of the grounding system, the Contractor shall provide barricades, fences, guard rails, etc., to safeguard all personnel, including small children, from excavated trenches.

E. Cutting and Patching:

1. The Contractor shall do all cutting and patching required to install his work. Any cutting which may impair the structure shall require prior approval by the Engineer. Cutting and patching shall be done only by skilled labor of the respective trades. All surfaces shall be restored to their original condition after cutting and patching.

3.03 DEVICE AND BOX INSTALLATION
A. System:

1. Install all products per Section 16010 – Electrical, INSTALLATION, GENERAL.

2. Keep boxes, and other openings closed during construction to prevent entry of foreign matter. Cover equipment, devices, apparatus, and protect them against dirt, paint, water, chemical, or mechanical damage before and during construction period. Restore to original condition apparatus or equipment damaged prior to final acceptance. Protect bright finished surfaces and similar items until in service. No rust or damage will be permitted.

3. All receptacles shall be tested for correct connections utilizing a plug-in ground, line and neutral test light plug.

4. Boxes shall be relocated at no additional cost to City as directed by Engineer when a conflict occurs in the box placement shown on drawings and other building appurtenances.

5. Provide and install necessary wires in surface mount 3/4" (min) EMT conduit for lighting and receptacle arrangement as shown on Contract drawings.

6. Conductors shall be copper type THHN, #12 AWG (minimum).

7. Mount conduits using single bolt galvanized pipe straps and clamp back spacers.

8. Use stainless steel expansion wedge anchors or epoxy anchors as necessary for device mounting.

9. Provide and install all device boxes, junction boxes, receptacles, switches, and covers.

10. Receptacles to be ground fault interrupter (GFI) type and weatherproof (WP) where shown.

11. See electrical symbols and abbreviations drawing for symbol definition.

12. All work shall conform to local codes and National Electric Code (NEC).

B. Device Mounting Heights:

1. Mounting heights of fixtures and devices shall be as follows unless otherwise indicated or when height has to be adjusted to be over or under counter tops.

ATEEM – December 2024
270-30-23-22
16110 - 19
Conduit, Boxes & Grounding
City of Milpitas
WellUpgrades Program
McCandless Well Facility
a. Wall switches => 48 inches
b. Convenience outlets => 18 inches finished areas
=> 24 inches non-finished areas
c. Telephone outlets => 54 inches
d. Bracket fixtures => 7 feet 6 inches
C. Cutting and Patching:

1. The Contractor shall do all cutting and patching required to install his work. Any cutting which may impair the structure shall require prior approval by the Engineer. Cutting and patching shall be done only by skilled labor of the respective trades. All surfaces shall be restored to their original condition after cutting and patching.

D. Boxes:

1. Leave no unused opening in any box. Install close-up plugs as required to seal openings.

2. All spare and/or empty conduits shall terminate in a device box.

3. Use stainless steel boxes when box must support door mounted devices.

4. In NEMA 4X areas boxes are to be spaced ¼-inch from walls using stainless steel, nylon or plastic spacers. Regular steel washers are not considered an approved spacer.

3.04 WARRANTY
A. Provide warranty asspecified in Section 16010 - Electrical, WARRANTY.

END OF SECTION

McCandless Well Facility
(THIS PAGE LEFT BLANK INTENTIONALLY)
ATEEM – December 2024 16110 - 22 City of Milpitas
270-30-23-22 Conduit, Boxes & Grounding Well Upgrades Program

ATEEM – December 2024
270-30-23-22
16120 - 21
Wires, Fuses & Terminal Blocks
City of Milpitas
WellUpgrades Program
McCandless Well Facility
SECTION 16120

WIRE, FUSES & TERMINAL BLOCKS
PART 1 - GENERAL

1.01 SCOPE OF WORK
A. The Contractor shall assemble, ready for use, the electrical and instrumentation system with wires, fuses and terminal blocks as specified herein.

B. Furnish all required labor, materials, tools, test equipment, incidentals and services to provide a complete and operational electrical and instrumentation system, with wire and electrical devices, as shown on the Drawings, included in these Specifications or required for fully operating facilities.

C. Work includes that specified in Section 16010 - Electrical.

1.02 SUBMITTALS AND DRAWINGS
A. Provide submittals and drawings as specified in Section 16010 - Electrical, SUBMITTAL AND DRAWING REQUIREMENTS.

1.03 QUALITY ASSURANCE
A. All materials selected for the manufacture of the hardware shall be the best available for the purpose for which they are used, considering strength, ductility, durability and the best engineering practice.

B. All like parts shall be interchangeable.

PART 2 - MATERIALS

2.01 WIRING AND ELECTRICAL DEVICES
A. General

1. The electrical and instrumentation system vendor shall provide the wiring and electrical devices specified below and install these field and internal panel wiring asshown on the Contract Drawings. Thissection appliesto all wires or conductors used internal (non-field) for all electrical equipment or external for field wiring.

Wire quantity and size shall be per “Wire Routing and Conduit Schedule”.

2. All wire shall be new, plainly marked with UL label, gauge, voltage, type of insulation and manufacturer's name.

3. All wiresshall be properly fused or protected by a breaker at the amperage rating allowed by the NEC.

4. Extra wire wasintentionally placed in the “Conduit & Wire Routing Schedule” and shall be labeled on both ends with a unique wire label as spares. All spare wires shall be labeled with equipment number followed by X1, X2, etc. (i.e., P11001-X1

ATEEM – December 2024
270-30-23-22
16120 - 22
Wires, Fuses & Terminal Blocks
City of Milpitas
WellUpgrades Program
McCandless Well Facility
for first spare wire.

B. Power Distribution

1. Each electrical and instrumentation panelsshall be equipped with a 120 VAC main power disconnect circuit breaker and power distribution circuit breakers. The main power disconnect breaker shall be a one pole breaker rated at panelboard feed breaker amps. Distribution circuit breakers shall be single pole. The circuit breakers shall be mounted on a standard DIN rail, and shall be Allen - Bradley Channel Mounting Type or equal.

2. For each power distribution circuit breaker, a neutral return terminal block shall be installed at the bottom of the breaker rail. The neutral return terminal block shall be standard DIN rail mounted, and shall be rated to carry up to 20 amperes and accept up to two 12 AWG wires.

3. Each control and instrumentation device shall have a separate fuse for 120 VAC power supply connection.

4. A spare duplex outlet wired to a separate panelboard circuit shall be provided in each control and instrumentation panel. This outlet shall be labeled "CONVENIENCE RECEPTACLE" and shall not be used to power any other equipment.

C. Analog Signals

1. Analog signal transmission between electric or electronic instruments shall be 4- 20 milliamperes and shall operate at 24 volts DC unless otherwise specified.

Milliampere signals shall be current regulated and shall not be affected by changes in load resistance within the unit's rating. Provide isolated current amplifiers wherever the loop load resistance exceed the current signal transmitter's rating. Associated shunt resistors shall be located on rail-mounted terminal blocks. Exposed resistorleadsshall be insulated with heat-shrink tubing.

D. Low Voltage Wire and Cable ( through 600V except instrument signals)

1. General: Low voltage conductors shall be used for power, control, lighting and miscellaneous circuits. This Section applies to all wires or conductors used internal for all electrical equipment or external for field wiring. Wire shall be new, plainly marked with UL label, gauge, voltage, type of insulation, and manufacturer's name.

2. Control and Power Wiring
a. NEMA standards WC70 and UL requirements.
b. Class B stranding. Solid conductors are only acceptable if provided by manufacturer of lighting fixture or instruments.
c. Conductors shall be copper with a minimum of 98% conductivity. d. ASTM B8, soft drawn copper, maximum 12 months old.
e. Insulation type for conductorssmallerthan #6 AWG shall be moisture and heat resistant thermoplastic NEC Type THHN/THWN, rated 90 °C in dry

ATEEM – December 2024
270-30-23-22
16120 - 23
Wires, Fuses & Terminal Blocks
City of Milpitas
WellUpgrades Program
McCandless Well Facility
locations and 75 °C in wet locations, or approved equal. Conductors #6 AWG and largershall be XHHW insulation rated 90 °C in dry locations and 75 °C in wet locations.
f. Insulation of all conductorsshall be rated 600 volt or higher. g. Field wire minimum AWG sizes
1) #12 for wires used for individual conductor circuits 100 volts and above, except for PLC I/O which may be #14 AWG.
2) #14 for wires used for individual conductor circuits below 100 volt.
h. Non-field or equipment wire minimum AWG sizes if properly protected by fuse or breaker
1) #14 for wires used for individual conductor circuits 100 volt and above, except for PLC I/O wiring which may be #16.
2) #18 for wires used for individual conductor circuits below 100 volt.

3. Instrument Cable
a. All 4-20mA and 1-5VDC inside instrument and control panel cables except when cables are installed in enclosures containing 480V wiring shall conform with the following:
1) Signal wiring shall be shielded twisted pair with #18 AWG tinned copper stranded conductors and shield drain conductor.
2) Conductor insulation shall be polyethylene rated 300VAC, 90° C and outer jacket shall be PVC.
3) A metal foil shield shall completely surround the signal conductors.
4) Multiple pair cables with individually shielded pairs may be used only with prior approval of the Engineer.
b. All field 4-20mA instrument cables and cables in enclosure containing 480V wiring shall conform with the following:
1) Signal wiring shall be shielded twisted pair with a minimum #16 AWG, tinned copper stranded conductors and shield drain conductor.
2) Conductor insulation shall be polyethylene rated 600VAC, 90° C and outer jacket shall be PVC and be “Tray Cable” rated. 3) A metal foil shield shall completely surround the signal conductors.
4) Multiple pair cables with individually shielded pairs may be used only with prior approval of the Engineer.
c. Instrument Cables shall be Belden, or approved equal. Note, multi-pair T.S.PR. Cables may be reduced in size to that listed in Conduit and Wire Routing Schedule.

4. Special Purpose Wiring

ATEEM – December 2024
270-30-23-22
16120 - 24
Wires, Fuses & Terminal Blocks
City of Milpitas
WellUpgrades Program
McCandless Well Facility
a. Manufacturer Supplied Cables: Cables and wiring forspecialsystemsshall be provided by the manufacturer with the equipment and installed per the manufacturer's recommendations.
b. VFD rated wire: All VFD load side power wiring shall have rated blended composite semi-conductive, tray cable rated, UL type TC 90°C insulation and 100% shielding with foil tape & tinned copper braid. Wire shall be Olflex – VFD CT or approved equal.
c. PLC Fiber Cable
1) The PLC communication system shall use fiber optic cable to connect PLC to the existing Plant Network. All fiber optic cable shall be provided and connected under this Section. The fiber optic cable shall be single-mode with six glass fibers, Loose tube, single jacket, steel armored black jacket. Fiber optic cable shall be Superior Essex TeraGain multimode fiber or approved equal. 2) Fiber optic cable shall be tested for optical loss in accordance with Standard Fiber Optic Cable OTDR Test procedures and verified to have an optical loss below that required to perform optimum communications throughput. All new fiber optic cable shall be installed and terminated by Company specializing in the area.
d. Provide fiber optic connector type to match City Standard. Provide six spare connectors. All active and spare fiber optic cables shall be terminated with spider fan-out kits.
e. CAT 6 Cable
1) CAT 6 communication cable in underground (UG) conduit shall meet the following requirements:
a) TIA/EIA-568.C.2 Category 6 Specifications.
b) #24 AWG solid bare copper conductor, 4 or 25 pair
shielded twisted pair per “Conduit & Wire Routing
Schedule”.
c) Rated for direct burial application.
d) 600V rating.
e) Insulation: Solid Polyolefin.
f) Filling compound: 80°C extended thermoplastic rubber. g) Outer Jacket: Black, water and UV resistant polyethylene. h) Electrically continuous aluminum shield.
i) Communication cable shall be Superior Essex or
approved equal.
2) Indoor CAT 6 communication cable meet the following
requirements:
a) TIA/EIA-568-B Category 6 specifications.
b) #24 AWG solid bare copper conductor, 4 twisted pairs. c) Thermoplastic Dielectric type.
d) Shielded bulk cable.

ATEEM – December 2024
270-30-23-22
16120 - 25
Wires, Fuses & Terminal Blocks
City of Milpitas
WellUpgrades Program
McCandless Well Facility
e) PVC jacket.
f) UL listed.
g) 600V rated.
h) Non-plenum usage rated when routed in conduit.
i) Plenum usage rated when routed in plenum spaces.

E. Color Code

1. The color code of all wire shall conform with the following table:

WIRES COLOR CODE TABLE

DESCRIPTION PHASE/CODE
LETTER

FIELD WIRE OR

TAPE COLOR

NON-FIELD WIRE
COLOR
480 V, 3 PHASE A BROWN BROWN

B ORANGE ORANGE

C YELLOW YELLOW
240 V or 208 V, 3P A BLACK -
B RED (ORANGE if high
leg)
-

C BLUE -

ATEEM – December 2024
270-30-23-22
16120 - 26
Wires, Fuses & Terminal Blocks
City of Milpitas
WellUpgrades Program
McCandless Well Facility

DESCRIPTION PHASE/CODE
LETTER

FIELD WIRE OR

TAPE COLOR

NON-FIELD WIRE
COLOR
240 / 120 V, 1 P L1 BLACK BLACK
L2 RED -
12V POSITIVE 12P DARK BLUE DARK BLUE
12V NEGATIVE 12N BLACK/RED STRIPE BLACK/RED STRIPE
24V POSITIVE 24P PINK PINK
24V NEGATIVE 24N BLACK BLACK
AC CONTROL (Not
Neutral)

VIOLET RED (YELLOW FOR

FOREIGN CIRCUITS)

DC CONTROL LIGHT BLUE LIGHT BLUE

NEUTRAL N WHITE WHITE

GROUND G GREEN GREEN
SHIELDED PAIR +
-

CLEAR (WHITE)
BLACK

CLEAR (WHITE)
BLACK

2. All wires #8 and below shall have wire insulation the color specified. Wires #6 and larger may be black with color tape.

3. No other colors shall be used without prior approval of the City.

4. The same color shall be connected to the same phase throughout the panel.

5. All wiresshall be properly fused or protected by a breaker at the amperage rating allowed by the NEC.

6. Neutral wires used for AC Control shall be White per NEC.

F. Wire Marking

1. Wire identification - all wires, field and interior to equipment, shall be identified with machine printed sleeve markers. Hand lettered wire labels and clip-on markers are not acceptable and shall be replaced at the Contractor's expense.

The wire labeling code for each end of the same wire shall be identical. Tubing shall be sized for the wire and shrunk into place with the properly sized heat gun.

Labels shall not be wrap-around or snap-on type.

2. The wire identification code for field and panel wiring shall be the number/letter designated on the "Contract elementary" and "Supplier loop" diagrams. Wire labels shall be T&B SM series, Pass & Seymour CAB3, or approved equal.

3. Wire labeling may be omitted on locally interconnected neutral wires such as jumpers between adjacent auxiliary relay coil neutral terminals. "Locally" is defined as wires no longer than 8".

4. Wire labels for lighting and receptacles shall be installed and consist of the panelboard and circuit number (i.e., Panelboard “LP1”, circuit breaker #3 would

ATEEM – December 2024
270-30-23-22
16120 - 27
Wires, Fuses & Terminal Blocks
City of Milpitas
WellUpgrades Program
McCandless Well Facility
have wire label line “LP1-L3” and neutral “LP1-N3”).

5. All spare wires shall be labeled with equipment number followed by X1, X2, etc. (i.e., P11001-X1 for first spare wire).

6. Ethernet patch cables and fiber cables shall be labeled with devices it is connected to (i.e. “PLC/E-Switch A”, “OI/E-Switch A”, “Radio/PLC” etc.). Label shall be white plastic with black machine printed lettering as produced by a KROY or similar machine with lettering no smaller than 3/8”. Securely attach to cable with clear tape.

G. Terminal Blocks and Fuses

1. Control Panel Terminal Blocks
a. Terminal blocksto be clamp type, 6mm spacing, 600 volt, minimum rating of 30 amps, and mounted on DIN rail, Phoenix Contact, Entrelec, or approved equal. DIN rail shall be same type as used for the relays. Install an extra DIN rail on each type of terminal strip with 20% spare terminals for future additions.
b. Provide terminal blocks with "follower" plates that compress the wires and have wire guide tangs for ease of maintenance. Terminal blocks that compress the wires with direct screw compression are unacceptable. All power, control and instrument wires entering and leaving a compartment shall terminate on terminal blocks with wire numbers on terminals and on both ends of the wires.
c. Terminal Tags and Markers: Each terminal strip shall have a unique identifying alphanumeric code at one end. Numbers shall be assigned to all blocks except grounding blocks. Fuse blocks shall be assigned unique tag numbers such as FU1, FU2. No two fuses shall be assigned the same tag number. Terminal blocks are to be labeled to match the wire landed. d. Plastic marking tabs shall be provided to label each terminal block. These marking tabs shall have a unique number/letter for each terminal which is identical to the "elementary" and "loop" diagram wire designation.

Numbers on these marking strip shall be machine printed and 1/8 inch high minimum.
e. Terminal blocks shall be physically separated into groups by the level of signal and voltage served. Power and control wiring above 100 volts shall have a separate group of terminal blocks from terminal blocks for wiring below 100 volts, intermixing of these two types of wiring on the same group of terminal blocks is not allowed.
f. Provide a ground terminal or connection point for each grounding conductor.
g. Provide a separate terminal block for every two neutral terminations or as coordinated with the interconnect diagrams.

ATEEM – December 2024
270-30-23-22
16120 - 28
Wires, Fuses & Terminal Blocks
City of Milpitas
WellUpgrades Program
McCandless Well Facility

2. MCC – Motor Starter Cubicles Terminal Blocks
a. MCC cubicle terminal blocks shall be pull-apart as supplied standard by MCC manufacturer.

3. Power Termination Blocks shall be rated for 600V main power connection. The power termination blocks shall be rated to accept Copper or Aluminum cable rated asshown on Contract one-line diagrams. The power termination block shall be capable of being mounted anywhere in a termination box. Each termination block shall be provided with lug shield to prevent contact with power connections. The power termination blocks shall be Connectron or approved equal.

H. Fuses

1. Fuses used in circuits 200 VAC and above shall be time- delay type FNQ or approved equal, 13/32" x 1-1/2", and have an interrupting rating of 10,000 AIC at 500 VAC. Fuse holders shall be of the barrier type and rated 600 VAC.

2. Fuses used in 120 VAC circuits shall be fast-acting type CC or approved equal, 13/32" x 1-1/2", and have a rating of 250 VAC. Fuse-holders shall be of the terminal block type.

3. Fuses used in signal and 24 VDC circuits shall be 5mm x 20mm and have a rating of 250 VAC. Fuse-holders shall be of the terminal block type.

4. Fuses shall be sized in conformance with the NEC.

I. Panel Ground

1. Each electrical, control and instrumentation panel shall be provided with a 1 inch x 0.25 inch x 8 inch (minimum size) solid copper grounding bus bar, mounted on the inside of the enclosure. The grounding bar shall be mounted on insulated standoffs so that no electrical connection is made between the ground bar and the cabinet through the mounting. The ground barshall be drilled and tapped for a 0.25-20 screws at 0.5 inch interval along its entire length.

2. An un-insulated solid copper #8 AWG ground wire shall be attached between the ground bar and the panel enclosure, and between the ground bar and the mounting panels. The ground connection to the enclosure and panel shall be made by sanding the paint finish off a small area, drilling a hole for a 0.25 inch bolt and mounting a 0.25-20 bolt to the panel to serve as grounding stud. The grounding stud shall be attached with a nut and flat washers on both sides of the enclosure/panel, and with an inside tooth star lock washer next to the panel surface. The star lock washer shall be on the inside surface of the enclosure, and the front surface of the mounting panel. The grounding wire shall be secured to the stud with a nut and inside tooth star lock washer. These grounding points shall be located within 12 inches of the bottom to the grounding bar. Each terminal strip rail shall be individually grounded by means of a #12 AWG wire to the ground bus.

ATEEM – December 2024
270-30-23-22
16120 - 29
Wires, Fuses & Terminal Blocks
City of Milpitas
WellUpgrades Program
McCandless Well Facility

EXECUTION

2.02 WORKMANSHIP
A. All work in this Section shall conform to the codes and standards specified in Section 16010 - Electrical.

B. The Supplier shall employ personnel that are skilled and experienced in the installation of wire electrical devices, accessories, and assemblies. All installation labor shall be performed by qualified personnel who have had experience on similar projects. Provide first class workmanship for all installations.

C. Ensure that all equipment and materials fit properly in their installations.

D. Perform any required work to correct improper installations at no additional expense to the City.

2.03 INSTALLATION
A. System

1. Install all products per 16010 - Electrical, INSTALLATION, GENERAL.

2. The panels shall be completely factory wired and tested before shipment.

3. All spare PLC input / output points shall be wired to terminal blocks.

4. A minimum of 20% spare unwired terminalsshall be provided in each panel.

5. Lace tie with cord, minimum length 2', each wire bundle entering any enclosure, vault, pullbox, cable tray or any other enclosure. Place label with conduit number associated with wire on each of these bundles when there is no place to attach label to conduit. Labels for each cord shall be similar to the engraved circular tag type specified in Section 16110 or approved equal.

6. Pulling lubricant shall be used when installing all wire in conduits.

B. Wiring Methods

1. Wiring Separation: Wires carrying 100 volts and above shall be physically separated from lower voltage wiring by using separate bundles or wire ways with sufficient distance to minimize the introduction of noise, crossing only at 90 degree angles.

2. Harness: All wiring shall be neatly bundled and laced with plastic tie-wraps, anchored in place by screw attached retainer. Where space is available, all wiring shall be run in slotted plastic wire ways or channels with dust covers. Wire ways or channels shall be sized such that the wire fill does not exceed 60%. Tie-wraps shall be T&B TY-RAP, or approved equal. Wiring inside of conduit, plastic wire duct, duct bank Sections or corrugated loom tubing is not to be wire tied or taped together.

ATEEM – December 2024
270-30-23-22
16120 - 30
Wires, Fuses & Terminal Blocks
City of Milpitas
WellUpgrades Program
McCandless Well Facility

3. Hinge Loops: Where wiring crosses hinged surfaces, provide a “U" shaped hinge loop protected by black or white nylon spiral wrap as manufactured by Panduit # CLT100N-C630, Greybar or approved equal. The hinge loop shall be of sufficient length to permit opening and closing of the door without stressing any of the terminations or connections.

4. Retainers: Wire ways, retainers, and other devices shall be screw-mounted with round-head 316 stainless steel screws or mechanically mounted by push-in or snap-in attachments. Glue or sticky back attachment of any type or style shall not be used. Retainers shall be T&B TC series, or approved equal.

5. Routing
a. Wiresshall be routed in slotted plastic wire-ways with snap covers. Wires carrying 120 VAC shall be separated as much as possible from other wires and signal cables, and shall be routed only in ducts for 120 VAC. If the power wiring has to cross the signal wiring, the crossing shall be as close to a right angle as possible.
b. Ducts for 24 VDC wiring shall be used for all other wires and cables.

Routing of 120 VAC in combined ducts shall be minimized. c. Wires and cable shall be routed along the shortest route between termination points, excepting routes which would result in routing 120 VAC and other wires and cables in the same duct. Wires and cables shall have sufficient length to allow slack and to avoid any strain or tension in the wire or cable.
d. Wires and cables shall be placed in the ducts in a straight, neat and organized fashion and shall not be kinked, tangled or twisted together.

Additional wire ducting shall be provided for use by the electrical subcontractor for routing field wires to their landing points in the each electrical and instrumentation panel.
e. Wiring not routed in duct work shall be neatly bundled, treed, and laced with plastic ties. Wiring across door hinges shall be carefully made up and supported to avoid straining and chafing of the conductors or from putting any strain on their terminals.

6. Exposed Tie-Wraps: Plastic tie-wraps used in all outdoor or exposed applications shall be sun resistant UV rated for outdoor usage.

7. Terminations: Single wire and cable conductors shall be terminated according to the requirements of the terminal device.
a. Provide 2” minimum separation between wireway and terminal blocks.

Installation of wireways too close to terminal blocks will be required to be completely reworked to the satisfaction of the City. b. For captive screw pressure plate type terminals, the insulation shall be removed from the last 0.25 inches of the conductor. The conductorsshall be inserted under the pressure plate to full length of the bare portion of the conductor and the pressure plate tightened without excessforce. No

ATEEM – December 2024
270-30-23-22
16120 - 31
Wires, Fuses & Terminal Blocks
City of Milpitas
WellUpgrades Program
McCandless Well Facility
more than two conductors shall be installed in a single terminal. All strands of the conductor shall be captured under the pressure plate. c. For screw terminals, appropriately sized locking forked spade lugs shall be used. Lugsshall be crimp on type that forms gastight connections. All crimping shall be done using a calibrated crimping tool made specifically for the lug type and size being crimped.
d. On shielded cables, the drain wire shall be covered with insulating tubing along its full bare length between the cable jacket and the terminal lug or terminal pressure plate.
e. For screwless terminals, wire shall be stripped back and inserted per the manufacturer'sinstructions. When stripping insulation from conductors, do not score or otherwise damage conductor.
f. Heat shrink shall be placed on ends of shielded cable to cover foil. g. Additional condulets with terminal blocks shall be supplied for wire termination to devices with leads instead of terminals (i.e. solenoid valves, level probe, etc.).
h. Terminate all status, control, and analog I/O wiring on terminal blocks, including spares. Provide additional relay, DIN rails, terminal blocks and side panels as required.

8. Spare Terminals: Provide a minimum of 20% spare terminals in all MCC cubicles, electrical and instrumentation enclosures, and instrumentation/control panels.

C. Minimum wire bending space at terminals and minimum width of wiring gutters shall comply with NEC Tables 373.6(A) & (B).

D. Wire sizes shall not be installed smaller than those shown in NEC Article 310 for each circuit amperage rating.

2.04 WARRANTY
A. Provide warranty asspecified in Section 16010- Electrical, WARRANTY.

END OF SECTION

McCandless Well Facility
(THIS PAGE LEFT BLANK INTENTIONALLY)
ATEEM – December 2024 16120 - 12 City of Milpitas
270-30-23-22 Wires, Fuses & Terminal Blocks Well Upgrades Program

ATEEM – December 2024
270-30-23-22
16250 - 33
Automatic Transfer Switch
City of Milpitas
WellUpgrades Program
McCandless Well Facility
SECTION 16250

AUTOMATIC TRANSFER SWITCH
PART 1 - GENERAL

1.01 SCOPE OF WORK
A. The Contractor shall supply along with complete startup and testing services for the automatic transferswitch (ATS) asspecified herein. This document describesthe function and operation of the system and particular components, but does not necessarily describe all necessary devices. All components and devices shall be furnished and installed as required to provide a complete operable and reliable system for accomplishing the functions and meeting the performance set forth hereinafter.

B. Furnish all required labor, materials, safety equipment, transportation, test equipment, incidentals and services to provide a complete and operational ATS as described in these Specifications, or required for fully operating facility.

C. Work includes that specified in Division 16.

D. The ATS scope of work includes:

1. Providing and installing automatic transferswitch at location shown.

2. Installation of the complete ATS.

3. Installation of surge suppressor as specified in Section 16480 – Motor Control Center.

4. Submittal data and drawings.

5. Startup assistance.

6. Testing.

7. Operation and maintenance manuals.

8. Warranty of all components of the automatic transferswitches.

1.02 SUBMITTALS AND DRAWINGS
A. Provide Submittals and Drawings as specified in Section 16010 - Electrical.

1.03 OPERATION AND MAINTENANCE MANUALS
A. Provide operation and maintenance manuals asspecified in Section 16010 - Electrical.

1.04 SUPPLIERS AND/OR MANUFACTURERS SERVICES
A. Prices for the ATS shall include the following services of technical representatives at the job site. The number of hours and scope ofservicesindicated are minimum requirements not including travel time. Time for travel and all associated expenses shall also be included in the bid price for the work.

1. 4 Labor hours - Installation assistance, inspection, and functional testing.

ATEEM – December 2024
270-30-23-22
16250 - 34
Automatic Transfer Switch
City of Milpitas
WellUpgrades Program
McCandless Well Facility

2. 4 Labor hours - Equipmentstartup and training.

PART 2 - MATERIALS

2.01 AUTOMATIC TRANSFER SWITCH
A. Open Transition Switch Unit:

1. The switch shall be true double-throw with inherently interlocked construction.

The switch shall be mechanically interlocked to ensure only one of two possible positions, normal or emergency.

2. Wide contact gaps shall be provided to ensure positive isolation of the normal and emergency power sources.

3. The switch shall be rated to withstand symmetrical short circuit current at the ATS terminals in combination with normal or emergency feeder breakers rated equal to or greater than RMS symmetrical amperesshown on Contract Drawings.

4. The switch shall be fully rated at amperage as shown on Contract Drawing, when mounted in switchboard/pedestal, for switching all types of loads, including induction motors, at the specified amperage and voltage.

5. Switches that are not rated for continuous duty, repetitive switching of all types of loads or transfer between two active power sources, are not acceptable.

6. The main power contacts shall have silver alloy construction with wiping action and shall be protected by arc chutes or arcing contacts.

7. The main contact design shall allow repeated making and breaking of full load current, in a combination of motor and other loads, without damage to the main contacts.

8. All main power contacts and auxiliary contacts shall be mechanically attached to a common actuator shaft.

9. The operating transfer time shall be adjustable time delayed open transition type with intentional load disconnect position for an adjustable period of time when transferring from Utility to generator or from generator to Utility sources.

10. Silver plated copper shall be used in the construction of the bus work.

11. Inspection of all contacts (movable and stationary) linkages and moving parts shall be possible from the front of the switch without disassembly of operating linkages and without disconnection of power conductors.

12. All switch and relay contacts, coils, mechanical linkages, and control elements shall be serviceable or removable from the front of the mounted switch and accessory assembly without removal of the switch or assembly from the compartment and without disconnection of the power cables or control wiring.

13. The switch shall have a manual operating handle for maintenance purposes.

14. Screw type solderless terminals or lugs shall be provided for connecting all external line & load power cables and control wiring. All connections shall be accessible from the front without removal of internal components.

ATEEM – December 2024
270-30-23-22
16250 - 35
Automatic Transfer Switch
City of Milpitas
WellUpgrades Program
McCandless Well Facility

15. A terminal strip shall be provided for terminating all control wiring. Number all terminals with machine printed lettering matching the wire number of the terminated wire.

16. All control wiring shall have permanent identification at each point of connection.

Wire identification shall be by machine printed numbered wiring sleeves.

Electrically common wiresshall have the same wire number. Electrically different wiring shall have unique wire numbers.

17. Control wiring shall be neatly bundled and secured in place by plastic cable ties.

Wiring shall be protected with plastic spiral wrap where it issubject to mechanical damage or crosses over to a hinged door.

18. The switch assembly shall be in an enclosure as shown on Contract E-Series Drawings. in a free standing switchboard enclosure with code gauge fully finished steel with rust resistant primer and two coats of baked enamel paint, the ATS manufacturer’s standard grey color.

19. The automatic transferswitch shall be an ASCO Model 7000, with optionsto meet specified requirements, Zenith or approved equal. Breaker type ATSs are not acceptable.

B. ATS CONTROL PANEL

1. A control panel shall be provided to direct the operation of the transfer switch.

The modules sensing and logic shall be a controlled by a built-in microprocessor.

Control panels that do not utilize microprocessor electronics to control the operation of the switch are not acceptable.

2. A microprocessor based control panel shall be provided to direct the operation of the transfer switch. The control panel shall have a keyboard, LED display and LED status lights.

3. The transfer switch control panel shall be mounted separately from the transfer switch and shall be supplied with a quick disconnect plug for ease ofmaintenance.

4. The control panel shall meet or exceed the voltage surge withstand capability in accordance with IEEE Standard C446) and NEMA Standard ICS1-109.21.

5. The phase failure or undervoltage of each phase of the normal powersource shall be monitored.

6. The under-voltage of each phase of the normal source shall be monitored, with pickup adjustable from 85% to 100% of nominal and the dropout adjustable from 75% to 98% of pickup setting, both in increments of 1%. These adjustments shall be factory set at 85% dropout, and 90% pickup.

7. The voltage of each phase of the emergency source shall be monitored, with pickup adjustable from 85% to 100% of nominal. This adjustment shall be factory set at 95% pickup.

8. Frequency sensing of the emergency source shall be provided, with pickup adjustable from 90% to 100% of nominal. This adjustment shall be factory set at 97% pickup.

ATEEM – December 2024
270-30-23-22
16250 - 36
Automatic Transfer Switch
City of Milpitas
WellUpgrades Program
McCandless Well Facility

9. The control panel shall include the following field adjustable time delays:
a. Time delay to override momentary normal source outages, adjustable from 0 to 6 seconds.
b. Transfer to emergency time delay for controlled timing of load transfer to emergency, adjustable from 0 to 60 minutes. This adjustment shall be field set to place emergency generator on-line in 2 seconds. c. Emergency source failure time delay to ignore momentary transients during initial generator set loading, adjustable from 0 to 4 seconds. Set at 2 seconds.
d. Retransfer to normal time delay, adjustable 0 to 9 hours. This adjustment shall be factory set at 5 minutes. The time delay is automatically bypassed if the emergency source fails and normal source is acceptable. e. Unloaded running time delay for emergency engine generator cooldown, adjustable from 0 to 60 minutes. This adjustment shall be factory set at 5 minutes.
f. Delayed transition time delay for setting the dead time when all power is removed from the load side of ATS, adjustable 0 to 5 minutes. Set at 5 seconds.
g. Generator Exercise Timer: Timer provided for operator adjustment of day of week, time of day and run duration for exercising the generator under operating loads by activating the automatic transfer switch. This timer shall be field set by the Contractor with date and time as specified by City.

Timer shall be mounted on the ATS outer deadfront door. h. Commit-to-start engine which requiresthe engine to reach proper output and run at least the duration of the cooldown setting, regardless of whether the load is transferred.

10. Contacts shall be provided for starting the engine when the normal source fails.

The contacts shall be double pole double throw (DPDT), and compatible with low voltage engine start signals.

11. Provide Auto/Test switch to provide test operation of the ATS by simulating a loss of the Normal Power Source. Provide signal lights and control switch as shown on Contract MCC elevation drawing.

12. Two auxiliary contacts shall be provided. One that closes when the switch is in the normal position and one that closes when the switch is in the emergency position.

These auxiliary contacts shall be rated 1 amp at 120 volts.

13. LED display to show voltage of each phase and frequency. This display shall also show timer setpoint values, which can be changed with keypad.

14. Circuitry shall be provided to allow for connection of a remote contact to inhibit transfer to emergency source and/or retransfer to normal source, ignoring the associated timing relays.

15. All adjustments shall be fully field adjustable without the use of tools, meters, power supplies, or special test equipment.

16. Each adjustment resolution shall be settable within minimum increments of 1%.

McCandless Well Facility

17. Repetitive accuracy of timer, voltage and frequency settings over a temperature range of –20° C to 70° C shall be within +/-2%.

18. The control panel shall be arranged such that adjustments to time delay settings can be safely made without personal exposure to live parts.

19. The control panel and power terminals shall be completely covered to protect against accidental contact, foreign matter and tampering.

20. The wire harness for connection of the control panel to the transfer switch shall have sufficient length to reach between the mounting locations shown on the design Drawings.

21. Provide the following displays on the controller display unit with keypad:
a. Eventlog to display 99 logged events with the time and date ofthe event, event type and event reason.
b. Total number of ATS transfers.
c. Number of ATS transfers caused by power source failures. d. Total number of days ATS has been in operation.
e. Total number of hoursthatthe normal and emergency sources have been available.
f. Each phase voltage and amperage.

22. Provide vents with removable metal filters.

23. Where possible, pilot devices, operator devices etc. shall be maximum of 66” above finished floor.

PART 3 - EXECUTION

3.01 WORKMANSHIP
A. All work in this Section shall conform to the codes and standards specified in Section 16010 – Electrical.

B. The Supplier shall employ personnel that are skilled and experienced in the startup and testing of ATS and its accessories, and assemblies. All installation laborshall be performed by qualified personnel who have had experience on similar projects. Provide first class workmanship for all installations.

C. Ensure that all equipment and materials fit properly in their installations.

D. Electrical Section 16010 – General Construction Methods and General Equipment Fabrication apply to the construction and assembly of the automatic transfer switch.

E. Perform any required work to correct improper installations at no additional expense to the City.

F. Provide nameplates as shown on Contract drawings.

3.02 INSTALLATION
A. The installation methods specified herein shall be followed by the Supplier of the automatic transfer switch. If the Supplier fails to comply with these installation methods, then the Contractor shall pay all costs required to make the changes to the equipment to conform with these installation methods.

B. All connections shall be accessible from the front without removal of internal components.

McCandless Well Facility
C. Terminal strips shall be provided for terminating all interconnect wiring except for prefab cable connectors. All terminals shall be labeled.

D. All wiring shall have permanent identification at each point of connection. Wire identification shall be by machine printed numbered wiring sleeves. All Wires shall have labels.

E. Wiring shall be neatly bundled and secured in place by plastic cable ties. Wiring shall be installed and protected with corrugated loom tubing where it is subject to mechanical damage or crosses over to a hinged door.

F. All lugs shall be copper sized for wires listed in the Conduit and Wire Routing Schedule.

3.03 FIELD TESTS
A. Provide field testing as associated with Section 16010 – Electrical and 16210 – Diesel Generator.

B. All time delays and programmable settings shall be set in the field by the Supplier to the settings as directed by the City at no additional cost.

3.04 WARRANTY
A. Provide warranty asspecified in Section 16010 – Electrical, WARRANTY.

END OF SECTION
ATEEM – December 2024 16250 - 8 City of Milpitas
270-30-23-22 Automatic Transfer Switch Well Upgrades Program

ATEEM – December 2024
270-30-23-22
16426 - 1
Main Switchboard
City of Milpitas
WellUpgrades Program
McCandless Well Facility
SECTION 16426

MAINSWITCHBOARD
PART 1 - GENERAL

1.01 SCOPE OF WORK
A. The Contractor shall supply along with complete startup and testing services for the Main Switchboard as specified herein. This document describes the function and operation of the system and particular components, but does not necessarily describe all necessary devices. All components and devices shall be furnished and installed as required to provide a complete operable and reliable system for accomplishing the functions and meeting the performance set forth hereinafter.

B. Furnish all required labor, materials, safety equipment, transportation, test equipment, incidentals and services to provide a complete and operational power distribution system as described in these Specifications, or required for fully operating facility.

C. This Section Scope of Work includes thatspecified in Division 16.

D. The main switchboard scope of work which includes both the furnishing and installation:

1. Main Switchboard.

2. Utility system consisting of transformer pad, bollards, primary & secondary conduits, etc.

3. Submittal data and drawings.

4. Startup assistance.

5. Testing and training.

6. Operation and maintenance manuals.

7. Warranty of all components.

8. Coordination with Power Company.

9. Provide trenching, backfilling, and compaction for all underground conduit routes, concrete pads, and pull boxes.

1.02 SUBMITTALS AND DRAWINGS
A. Provide submittals and drawings as specified in Section 16010 - Electrical.

B. Submittals for the Electric Service shall include, but shall not be limited to, the following:

1. All primary and secondary utility service materials (pullboxes, transformer pads, conduits and bollards). These materials shall also be submitted to and approved in writing by Utility service.

2. Switchboard and meter/main outline and dimensional drawings and conduit entry area baseplans.

3. Nameplate designations, sizes and mounting methods.

ATEEM – December 2024
270-30-23-22
16426 - 2
Main Switchboard
City of Milpitas
WellUpgrades Program
McCandless Well Facility

4. Ratings and characteristics including voltage ratings, bussing arrangements, continuous current ratings, fault current withstand ratings, neutral bus rating, ground bar termination points, ratings and arrangement of overcurrent protective devices.

5. Provide catalog cuts of all devices used.

6. Provide seismic anchoring calculations and methods.

7. Circuit breaker time-current curves and settings.

8. Provide written statement from utility Engineer for project,stating approval of all proposed utility metering service materials, protective devices, metering provisions, and bus duct.

1.03 OPERATION AND MAINTENANCE MANUALS
A. Provide operation and maintenance manuals asspecified in Section 16010 - Electrical.

PART 2 - MATERIALS

2.01 MAIN SWITCHBOARD
A. General:

1. Furnish a free-standing, dead-front type, main switchboard with utility metering breakers, and other devices shown on Contract Elevation diagrams. Voltage and amperage rating shall be as shown on Contract Drawings. It shall consist of the required number of vertical sections shown on Contract Drawings bolted together to form a rigid assembly.

2. The main switchboard shall comply with the latest applicable standards of NEMA PB-2 and UL Standard 981. The assembly shall bear a UL label.

3. The main switchboard shall be suitable for use asservice entrance equipment and be labeled in accordance with UL requirements.

4. Small wiring, necessary fuse blocks and terminal blocks within the switchboard shall be furnished as required. Control components mounted within the assembly, such as fuse blocks, relays, pushbuttons, switches, etc., shall be suitably marked for identification corresponding to appropriate designations on manufacturer's wiring diagrams.

5. The assembly shall be provided with adequate lifting means and shall be capable of being moved into installation position and bolted directly to the floor without the use of floor sills. All necessary hardware to secure the assembly in place shall be provided by the Contractor.

6. The switchboard shall be arranged as shown on Contract Drawings. If the proposed meter arrangements are significantly different than those shown on the Contract Drawings, then the Contractor shall consult with the Engineer and provide proposed layout and catalog cuts prior to first submittal.

7. The switchboard manufacturer shall cooperate with the Contractor by promptly supplying dimensional or other required information prior to delivery of equipment.

ATEEM – December 2024
270-30-23-22
16426 - 3
Main Switchboard
City of Milpitas
WellUpgrades Program
McCandless Well Facility

8. Provide larger size breaker lugs or breaker frame to land wires specified in “Conduit and Wire Routing Schedule” is standard lugs will not accept wire specified. Larger lugs or breaker frame shall be provided at no additional cost to City. All lugs shall be copper.

9. The switchboard shall be manufactured by Eaton, Square D, ITT, or approved equal.

B. Construction:

1. The switchboard shall be NEMA rated as shown on Contract Drawing and constructed of code gauge galvanized steel fully finished with two coats of baked enamel paint with color to match that of the MCC. Provide Switchboard with NEMA 3R weather wrap where shown on Contract Drawings.

2. All sections of the switchboard shall align front and rear with depth as shown on the Drawings. Front accessshall allow for installation, maintenance and servicing of all components. Switchboardsrequiring back orside access are not acceptable.

3. All edges of front covers or hinged front panels shall be formed.

4. All control wire shall be type THWN, bundled and secured with nylon ties.

Insulated locking spade terminals shall be provided for all control connections, except where saddle type terminals are provided integral to a device. All current transformer secondary leads shall first be connected to conveniently accessible short circuit terminal blocks before connecting to any other device. All groups of control wires leaving the switchboard shall be provided with terminal blocks with suitable numbering strips. Provide wire markers at each end of all control wiring.

5. Provide removable metal filters on all vents.

6. Top of operator interface (pilot devices / breaker) to be maximum 66” above finished floor. Cubicles with switch disconnects shall be mounted no higher than 60” above finished floor.

C. Short Circuit Rating:

1. The complete bus assembly and breakers shall be rated to withstand mechanical forces exerted during short circuit conditions when connected directly to a power source having available fault current listed on Contract One Line Drawings.

D. Bussing:

1. All bus bars shall be tin plated copper. Bus sizing shall be based on NEMA standard temperature rise criteria of 65° C over a 40° C ambient (outside the enclosure).

2. Provide a half capacity neutral bus where a neutral bus is indicated on the Drawings.

3. A tin plated copper ground bus shall be furnished firmly secured to each vertical section structure and shall extend the entire length of the switchboard.

4. All hardware used on conductors shall be high-tensile strength and zinc plated.

All bus joints shall be provided with Bellville washers.

E. Circuit Breakers:

1. Each breaker shall be three-pole unit, molded case circuit breaker with thermal

ATEEM – December 2024
270-30-23-22
16426 - 4
Main Switchboard
City of Milpitas
WellUpgrades Program
McCandless Well Facility
magnetic (TM) overcurrent device with Long, Short, Instantaneous, and Ground (LSIG) trip unit when shown. Breaker arrangement, trip, and frame ratings shall be as shown on Contract one-line diagram.

2. Each breaker shall have a hasp for padlocking the breaker in the OFF position.

3. Circuit breakers with a frame size of 450 amperes to 1200 amperes shall be molded case with electronic microprocessor based RMS trip elements. Molded case circuit breakers with electronic trip shall be Eaton Series C N-Frame Type NGH with Digitrip 310+ Electronic ALSIG trip unit, or equal. The interrupting capacity of all main, and feeder branch circuit breakers shall be a minimum of 65,000 RMS symmetrical amperes at operating voltage.

4. Main breaker trip unit shall be equipped with 24 VDC coil for “Maintenance Mode” for arc flash reduction when shown. Maintenance mode selection switch (Maintenance Mode or Normal Mode selection) shall be installed on Switchboard face near main breaker. 24 VDC supply shall come from PLC Panel.

5. Provide all pilot devices with descriptive engraved nameplates.

6. Circuit breakers shall be Eaton, GE or approved equal.

F. Testing

1. The switchboard shall be completely assembled, wired and tested at the factory.

After assembly, the complete switchboard will be tested for operation under simulated service conditions to assure the accuracy of the wiring and the functioning of all equipment. The main busshall be given a dielectric test of 2200 volts for one minute between live parts and ground and between opposite polarities. A certified test report of all tests shall be submitted to the City for approval before shipment from factory.

PART 3 - EXECUTION

3.01 WORKMANSHIP
A. All work in this Section shall conform to the codes and standards specified in Section 16010 - Electrical.

B. The Supplier shall employ personnel that are skilled and experienced in the startup and testing of a main switchboard service equipment and accessories. All installation labor shall be performed by qualified personnel who have had experience on similar projects.

Provide first class workmanship for all installations.

C. Ensure that all equipment and materials fit properly in their installations.

D. Electrical Section 16010 - General Construction Methods and General Equipment Fabrication apply to the construction and assembly of the main switchboard.

E. Perform any required work to correct improper installations at no additional expense to the City.

F. All equipment installed by the Contractor shall be in accordance with the Drawings and the manufacturer's recommendations & instructions, and shall operate to the Engineer's satisfaction. Follow all manufacturer’s instructions for handling, receiving, installation, and pre-check requirements prior to energization. After energization, follow manufacturer’s instructions for programming, set-up, and calibration of breakers. The

ATEEM – December 2024
270-30-23-22
16426 - 5
Main Switchboard
City of Milpitas
WellUpgrades Program
McCandless Well Facility
Contractor shall be responsible for, and shall correct by repair or replacement, at his own expense, equipment which, in the opinion of the Engineer, has been caused by faulty mechanical or electrical assembly by the Contractor. Necessary tests to demonstrate that the electrical and mechanical operation of the equipment is satisfactory and meets the requirements of these Specificationsshall be made by the Contractor at no additional cost to the City.

3.02 CONSTRUCTION
A. The construction methods specified herein shall be followed by the Supplier of the main switchboard. If the Supplier fails to comply with these installation methods, then the Contractor shall pay all costs required to make the changes to the equipment to conform with these installation methods.

1. All connections shall be accessible from the front without removal of internal components.

2. Terminal strips shall be provided for terminating all interconnect wiring except for prefab cable connectors. Terminals shall be labeled per Section 16120 - Wire, Fuses & Terminal Blocks.

3. All wiring shall have permanent identification at each point of connection. Wires shall be labeled per Section 16120 - Wire, Fuses & Terminal Blocks.

4. Wiring shall be neatly bundled and secured in place by plastic cable ties. Wiring shall be protected with plastic spiral wrap where it is subject to mechanical damage or crosses over to a hinged door.

5. Utility pull rope shall have distance markers every one (1) foot along entire length of pull rope. Size of pull rope shall be per Utility requirements.

3.03 INSTALLATION
A. The Contractor shall coordinate all work with the serving power Utilities, and notify the Utility Company when service isrequired. The Contractor shall arrange a pre-construction meeting with the Utility representative prior to start of any Utility related work. The Contractor shall obtain the required inspections.

B. Utility will be responsible for furnishing and installing all transformer high voltage primary cabling.

C. Switchboard Supplier shall provide all required transformer secondary cabling and lugs at Main Switchboard to match Secondary cabling.

D. Install pull ropes in each Utility primary and secondary conduits. Pull ropes shall have distance markers every one (1) foot along entire length of pull rope. Size and material for pull rope shall be per Utility requirements.

3.04 FIELD TESTS
A. Provide field testing as specified in Section 16010 - Electrical.

B. Breakers shall be set to values determined by Switchboard Supplier. Switchboard shall not be energized until breakers have been set and field tested and Engineer has given written approval.

3.05 WARRANTY

ATEEM – December 2024
270-30-23-22
16426 - 6
Main Switchboard
City of Milpitas
WellUpgrades Program
McCandless Well Facility
A. Provide warranty asspecified in Section 16010 – Electrical, WARRANTY.

END OF SECTION

McCandless Well Facility
(THIS PAGE LEFT BLANK INTENTIONALLY)
ATEEM – December 2024 16426 - 8 City of Milpitas
270-30-23-22 Main Switchboard Well Upgrades Program

ATEEM – December 2024
270-30-23-22
16470 - 1
Panelboard and Panelboard Transformer
City of Milpitas
WellUpgrades Program
McCandless Well Facility
SECTION 16470

PANELBOARD AND PANELBOARD TRANSFORMER
PART 1 - GENERAL

1.01 SCOPE OF WORK
A. The Contractor shall supply the panelboard and panelboard transformer shown on the Contract Drawings and as specified herein.

B. Furnish all required labor, materials, safety equipment, transportation, test equipment, incidentals and servicesto provide complete and operational panelboard and panelboard transformer as described in these Specifications and required forfully operationalfacility.

C. Work includes that specified in Section 16010 - Electrical.

D. The panelboard and panelboard transformer scope of work includes:

1. Providing panelboard and panelboard transformer.

2. Installation of panelboard and panelboard transformer at location shown on Drawings.

3. The quantity of breakers with size and number of poles as shown on panelboard schedules.

4. Submittal data and Drawings.

5. Startup assistance.

6. Testing.

7. Operation and maintenance manuals.

8. Warranty of all components of the panelboard and panelboard transformer.

1.02 SUBMITTALS AND DRAWINGS
A. Provide data and Drawingsfor all materials furnished under this Section with the content and format as specified Section 16010 - Electrical.

B. Provide ratings and characteristics including voltage ratings, busing arrangements, continuous current ratings, fault current withstand ratings, neutral bus rating, ground bar termination points, ratings, and arrangement of overcurrent protective devices.

C. Provide catalog cutsfor panelboard, circuit breakers and transformer.

D. Submit panelboard schedules for approval.

1.03 OPERATIONS AND MAINTENANCE MANUALS
A. Provide data and Drawingsfor all materials furnished under this Section with the content and format as specified Section 16010 - Electrical.

ATEEM – December 2024
270-30-23-22
16470 - 2
Panelboard and Panelboard Transformer
City of Milpitas
WellUpgrades Program
McCandless Well Facility
PART 2 - MATERIALS

2.01 PANELBOARD
A. General:

1. The Contractor shall furnish each panelboard of a type indicated on the Contract panelboard schedules and specified herein.

2. Panelboard shall comply with the applicable Sections of UL, NEC, and NEMA and be manufactured by the same manufacturer for all panelboard.

3. A removable machine-typed circuit directory with clear plastic cover shall be provided with panelboard and mounted on the inside of door in a frame. Circuit directory shall be as approved in the Submittal and updated or replaced to show as-built breaker identification.
a. “Sticker” type panelboard schedules are not acceptable. b. The directory cards shall be updated prior to final acceptance.

4. Provide panelboard engraved nameplates with ½-inch lettering. Nameplate inscription shall be the panel name listed on the Panelboard Schedule.

5. Panelboard door latches shall be tool-less quarter turn indicating type fasteners

6. Panelboards mounted external of MCCs shall be provided with engraved nameplates listing Panelboard name, voltages, and location feeding it (i.e. “MCC100 via Transformer XFMR-100”, “Power Panel 100”, etc.). Engraved nameplate shall be as specified herein.

B. Interior:

1. Factory assembled with bolt-on devices.

2. Full size insulated neutral bus shall be included. Neutral busing shall have a suitable lug for each outgoing feeder requiring a neutral connection.

3. Bus bar shall be copper sized in accordance with UL standards to limit temperature rise on any current carrying part to a maximum of 50° C above an ambient 40° C maximum.

4. A copper ground and neutral bus bar shall be included in panelboard with terminal screws.

C. Trim:

1. Provide hinged door over all circuit breaker handles. Door of panelboard trim shall not uncover any live parts. Door shall have a catch, lock, and trim.

2. Surface of the trim assembly shall be properly cleaned, primed, and a finish coat of gray paint to match MCC color when installed in MCC, otherwise painted to match room décor.

3. Provide panelboard engraved nameplates with ½-inch lettering as specified in Section 16010 - Nameplates. Nameplate inscription shall be the panel name listed on the Panelboard Schedule.

ATEEM – December 2024
270-30-23-22
16470 - 3
Panelboard and Panelboard Transformer
City of Milpitas
WellUpgrades Program
McCandless Well Facility

4. Provide circuit number tags next to each circuit breaker, including existing panelboards.

D. Panelboard Ratings:

1. Panelboard shall be rated as shown on the Contract Drawings.

2. Breakers shall be a minimum of 100 ampere frames. Breakers 15 through 100 amperes trip size shall take up the same pole spacing. All panelboard breakers shall be provided with individual padlock hasps (lockable in off position). Provide molded-case breakers with quick-make and quick-break toggle mechanism, inverse-time trip characteristics, and trip-free operation on overload or short circuit. Automatic tripping shall be indicated by handle position between the manual OFF and ON position. Provide trip ratings as indicated in panelboard schedule. Series breakers devices are not allowed to meet interrupt ratings listed.

3. Panelboard shall be labeled with a UL short circuit rating.

E. Space Only:

1. Where "space" is noted on the drawings, provide connectors, mounting brackets, blank covers, etc., for the future insertion of an overcurrent device.

2.02 PANELBOARD TRANSFORMER
A. The panelboard transformer shall be ventilated dry type. Voltage, phase, and KVA ratings shall be as shown on the Contract One-line Drawing. The transformer shall be as manufactured by G.E. Type QL, Eaton, Acme, or approved equal.

B. The transformer shall have 115 °C rise, insulation 220 °C rise Class H insulation system.

C. Transformershall be installed in locations asshown on Contract Drawings. All transformer installed shall be supplied by the same manufacturer.

D. Vibration isolators shall be installed between the transformer and its mounting surface to reduce case vibration and compensate for slight unevenness of the mount. They shall be sized for the appropriate loading at twice the fundamental frequency. The transformer housing shall be securely fastened to the mounting surface to eliminate possible sound generation.

E. Each transformer shall be finished with two coats of heavy enamel to resist rust and corrosion.

F. Provide an engraved nameplate for each transformer. Nameplates shall have ½" high letters and be engraved with transformer designation as shown on one-line Drawings.

G. Transformer rated 30KVA and above shall have two 2-1/2 percent taps above and below rated voltage.

H. Transformer located inside MCCs shall be provided with adequate ventilation for heat removal as required.

I. Transformerlocated outdoorsshall be provided with NEMA 3R enclosures or UL approved drip shields to obtain a weatherproof rating.

ATEEM – December 2024
270-30-23-22
16470 - 4
Panelboard and Panelboard Transformer
City of Milpitas
WellUpgrades Program
McCandless Well Facility
J. Wall mounted transformer shall be provided with appropriate wall mounting brackets.

Wall mounted transformershall be located so as not to block off conduit access to panels and so as not to impede proper working headroom and clearances.

K. Floor mounted transformershall have a 3-1/2” concrete housekeeping pad.

L. Transformer shall be mounted with ventilation space from wall or structures as specified by the Transformer Manufacturer.

M. Transformer neutral shall be grounded in accordance with NEC 250.66 and 450.10 and any applicable local ordinances. Installation and protection of the transformer grounding conductors and attachments shall be per NEC 250.24.

2.03 LABELS
A. Provide engraved panelboard nameplates with ½-inch lettering. Nameplate inscription shall be the panel name listed on the Panelboard Schedule.

B. Provide an engraved nameplate for each external transformer per Section 16010.

C. Provide circuit number tags next to each circuit breaker.

PART 3 - EXECUTION

3.01 GENERAL
A. Set taps under load conditions for correct voltage.

B. Install transformer located outside MCC on Korfund Series F or H double-deflection mounts selected for the weight of the transformer, to produce the maximum isolation.

Secure with four one-half inch (minimum) diameter stainless steel anchors, minimum 2- 1/2" embedment.

C. For floor and wall mounted transformer install with a 6" minimum clearance (or distance required by transformer manufacturer) between transformer and walls.

3.02 WORKMANSHIP
A. All work in this Section shall conform to the codes and standards specified in Section 16010 - Electrical.

B. Ensure that all equipment and materials fit properly in their installations.

C. Perform any required work to correct improper installations at no additional expense to the City.

3.03 FIELD TESTS
A. Provide transformer field testing as specified in Section 16010 – Electrical, TESTING.

3.04 WARRANTY
A. Provide warranty asspecified in Section 16010 – Electrical, WARRANTY.

END OF SECTION

McCandless Well Facility
(THIS PAGE LEFT BLANK INTENTIONALLY)
ATEEM – December 2024 16470 - 6 City of Milpitas
270-30-23-22 Panelboard and Panelboard Transformer Well Upgrades Program

ATEEM – December 2024
270-30-23-22
16480 - 1
Motor Control Center
City of Milpitas
WellUpgrades Program
McCandless Well Facility
SECTION 16480

MOTOR CONTROL CENTER
PART 1 - GENERAL

1.01 SCOPE OF WORK
A. The System Supplier shall customize and supply the motor control centers (MCC) as specified herein. Standard MCCs supplied direct from MCC Manufacturers will not be accepted. This document describes the function and operation of the system and particular components, but does not necessarily describe all necessary devices. All components and devices shall be furnished and installed as required to provide a complete operable and reliable system for accomplishing the functions and meeting the performance set forth hereinafter.

B. Furnish all required labor, materials, safety equipment, transportation, test equipment, incidentals and services to provide a complete and operational MCCs as described in these Specifications, or required for fully operating facility.

C. Work includes that specified in Division 16.

D. The MCC scope of work includes:

1. Providing MCCs, Power Monitor, Surge Suppressor, etc.

2. Installation of the MCC.

3. Installation of concrete pad for MCC.

4. Submittal data and Drawings.

5. Startup assistance.

6. Testing.

7. Operation and maintenance manuals.

8. Warranty of all MCC components.

E. All wiring and terminal blocks within each MCC shall be labeled as specified in Section 16120 – Wires, Fuses, and Terminal Blocks. All neutral wires shall have white insulation.

F. All MCCsshall be wired at System Supplier’s facilities. Factory wiring is not acceptable.

G. Footprints of MCCs shown on Contract Drawings were developed based on best available information. It is the Contractor’s responsibility to obtain site plans of the location for each MCC, motor starter, control panel, etc. to ensure the supplied equipment is appropriate for the location. Contractor is responsible for any additional conduits, wires, construction costs, engineering design requirements, etc. to accommodate MCC, motor starter, control panel, etc. that are larger than that shown on Contract Documents.

1.02 SUBMITTALS
A. Provide Submittals and Drawings as specified in Section 16010.

ATEEM – December 2024
270-30-23-22
16480 - 2
Motor Control Center
City of Milpitas
WellUpgrades Program
McCandless Well Facility
B. Complete Short Circuit Study per Section 16605 Electrical System Analysis shall be submitted and approved by Engineer before Engineer will approve submittal for MCC and switchboard equipment.

C. MCC and switchboard equipment shall not be delivered until Protective Device Coordination Study per Section 16605 Electrical System Analysis has been submitted and approved.

D. All submittal drawings shall be prepared by System Supplier. Factory supplied MCC drawings are not acceptable.

1.03 OPERATION AND MAINTENANCE MANUALS
A. Provide operation and maintenance manuals asspecified in Section 16010.

B. Include the following in the O&M manuals for the MCC.

1. Record of each motor starter including Manufacturer, full part number,size, etc.

2. Record of each overload heater elementsize and setting, including Manufacturer full part number, size, etc.

3. Each breaker part number and as-finalized breaker setting.

1.04 SUPPLIERS AND/OR MANUFACTURERS SERVICES
A. Prices for the items specified shall include the following services of MCC supplier’s technical representatives at the job site. The number of hours and scope of services indicated are minimum requirements and do not include travel time. Time for travel and all associated expenses shall also be included in bid price for the work.

1. 32 Labor hours per MCC - Installation assistance, field inspection and functional testing.

2. 32 Labor hours per MCC - Equipment setup and startup.

3. Training hours to meet requirements of Section 16010.

PART 2 - MATERIALS

2.01 MOTOR CONTROL CENTERS
A. General:

1. Each motor control center (MCC)shall be built and tested in accordance with:
a. NEMA Standards.
b. ANSI.
c. Underwriter’s Laboratories, Inc.

2. Each MCC shall comply with all provisions of UL 845, and bear a separate UL label on each individual MCC Section. In addition, all wiring, devices, and components contained therein, shall be UL labeled for the application. UL approval and labels shall be provided for the individual MCC Sections prior to delivery from the factory. Field UL labeling will not be allowed.

3. MCCs shall be 600 volt class rated to operate from an incoming power as shown on Contract one-line diagrams.

ATEEM – December 2024
270-30-23-22
16480 - 3
Motor Control Center
City of Milpitas
WellUpgrades Program
McCandless Well Facility

4. MCC construction shall consist of NEMA rated as shown on Contract Drawings deadfront enclosure. MCC shown as NEMA 12 shall be NEMA 1 type, with gasketed doors to reduce dust entry. The height of the MCC shall be 90 inches.

MCC fabrication shall be NEMA Class II with NEMA Type B wiring.

5. Each MCC shall be provided with the type, capacity, and ratings of components shown on the Drawings or otherwise specified. The 460 VAC breakers shall be rated to withstand an available fault current shown on Contract Drawings.

6. MCP breakers shall be selected to have trip and breaker size based on the motor full load amps to meet latest NEC. When the MCP breaker size change due to a different motor size and full load amps than that shown on the Contract Drawings, the Contractor shall provide the properly sized MCP breaker at no additional cost to City.

7. Provide extension handles for breakers with center of the grip of the operating handle, when in its highest position, is above 78" from floor in order to conform with NEC 404.8.

8. Where possible, pilot devices, operator devices etc. shall be maximum of 66” above finished floor.

9. MCC components such as relays, starters, breaker, lights, switches, etc. shall meet the requirements of Section 16010.

10. Provide vents with removable metal filters.

B. Qualifications:

1. MCC structures shall provide for all equipment detailed on the single line Drawings including all spares and spaces. Where possible, the MCC shall be built in strict accordance with overall sizing and component layouts as detailed on the Drawings. No deviations will be allowed without prior approval of the City.

2. When physical size requirements for individual components are different than those detailed on the MCC elevation Drawings, the single line Drawing shall supersede the elevation Drawing, and the Contractor shall furnish additional vertical sections based on the City's approval as required to provide for all equipment including spares and spaces at no additional cost to City. The concrete housekeeping pad shall be expanded by Contractor at no additional cost to City when larger MCCs are supplied.

3. MCCs shall have major components and subsystems therein (i.e., breakers, contactors) that are standard for the MCC Manufacturer.

4. All devices and components of a similar type of function located in different MCC cubicles (i.e., VFDs, contactors, control relays, timers, etc.), shall be the product of same Manufacturer throughout.

5. All starters and contactors shall be rated and designated in accordance with NEMA standards. Starters and contactors rated in amperes without Manufacturer’s published data indicating the corresponding NEMA sizes will not be acceptable. Submittals shall provide cross-reference data which includes details of the Manufacturer’s compliance with NEMA standards and tests.

6. MCCs shall be Eaton 2100 Series or Allen-Bradley customized per Contract

ATEEM – December 2024
270-30-23-22
16480 - 4
Motor Control Center
City of Milpitas
WellUpgrades Program
McCandless Well Facility
Drawings.

C. Construction:

1. Each MCC shall consist of standard metal-enclosed, freestanding, dead-front and dead-back vertical Sections, not more than 90 inches in height and not less than 20 inches deep. The framework shall be made of 12-gauge steel channels. The composite MCC shall consist of vertical sections that are of equal height. Provide Switchboard with NEMA 3R weather wrap where shown on Contract Drawings.

2. Working height excluding the upper and lower wireways of MCC shall be 72 inches to accommodate compartment spacing in increments of six inches.

Minimum compartment height shall be twelve inches.

3. Each Section shall be provided with horizontal top and bottom wireways.

Wireways shall be readily accessible and isolated from all busing by grounded steel barriers. The bottom wireways shall have an adequate conduit entrance area and shall not be obstructed by transformers, capacitors, or other devices.

The wirewaysin each section shall line up with wirewaysin the adjacentsections, with openings between so that wires may be pulled the entire length of MCC.

4. Where shown on the Drawings, isolated vertical wireways shall be provided, each with a separate full height door. Vertical wireways shall intersect the top and bottom horizontal wireways for easy cable routing. Vertical wireways shall have wire hangers for wire tie-down spaced throughout the complete vertical trough.

Vertical wireway doorsshall be latched by quarter-turn, indicating-type fasteners.

5. Each MCC shall be designed for front access maintenance. All wiring, bus joints, and other mechanical parts requiring tightening or other maintenance shall be accessible from the front. Rear orside accessshall not be necessary for inspection or maintenance.

6. All steel work shall be immersion cleaned and phosphated to inhibit rust prior to painting. Paint finish shall be electrostatically applied dry powder, baked to thermoset. MCC compartment interior color shall be white. All other interior and exterior MCC structure surfaces shall be finished in an ANSI 61 or ANSI 49 gray color. No field painting will be allowed except for "touching up" of damaged areas.

7. A Manufacturer's nameplate shall be attached to each MCC giving the model number,serial number, bus amps, voltage, and other Manufacturer'sinformation pertaining to the MCC construction.

8. MCCsshall be furnished completely factory assembled and shipped to the jobsite in shipping sections. Assembly of components into MCC at the jobsite is not allowed (except for connection of shipping section). Removable lifting angles or eyes shall be provided on the top of each MCC shipping section.

9. All fans and louvers shall be provided with removable metal filters.

D. Bus System:

1. All bus material shall be copper. Aluminum buswork is not allowed. All buses, except ground buses, shall be completely isolated by steel plates or insulating material.

ATEEM – December 2024
270-30-23-22
16480 - 5
Motor Control Center
City of Milpitas
WellUpgrades Program
McCandless Well Facility

2. A continuous horizontal bus shall be furnished and rated as shown on the Drawings.

3. A full length vertical bus shall be furnished in each Section and rated as shown on the Drawings. Current rating shall apply to the full length of the vertical bus, tapered bus shall not be allowed. Vertical buses shall be insulated and isolated with glass polyester or equivalent continuous barriers. Cutouts shall be provided in the barriers for plug-in stab connections. Unused stab openings shall be plugged. Lower ends of vertical buses shall be insulated.

4. Busesshall be sized and braced to withstand a fault ofsymmetrical ampereslisted on Contract one-line drawings. MCC protective breaker(s) shall have an interrupting capacity to isolate a fault current of this magnitude.

5. A copper ground bus shall be provided in the bottom horizontal wireway of each Section. The ground bus shall be rated 300A minimum. It shall be electrically continuous the entire width of each MCC. Provide cable lugs on ground bus for incoming power grounding conductors.

E. Compartments:

1. Compartments shall be isolated from each other by separate horizontal steel plates without openings that are a part of the unit itself. Draw-out units shall totally isolate enclosed equipment. All unused openings to the adjacent vertical wiring space shall be plugged. All openings used for wiring shall have insulating grommets.

2. Doors for each compartment shall be fabricated from formed sheet steel of no lessthan 14 gauge thickness. The door opening shall be ofsufficientsize to permit ready removal of any of the devicesin the compartment. Doorsshall be mounted on adjustable and removable pin type concealed hinges arranged so that compartment doors may be removed without disturbing compartment doors above or below. Door latches shall be quarter turn indicating type fasteners.

Panelboard and Control Panel door latches shall be tool less quarter turn indicating type fasteners. Overload relays shall be reset from outside the enclosure by means of an insulated button mounted on the door.

3. An operator mechanism mounted on the draw-out unit shall provide the means for operating the compartment breaker or disconnect switch. The operator shall extend through an opening in the compartment door and shall clearly indicate whether the disconnect is "on", "off" or "tripped". This indication shall function whether the door is open or closed. The operating mechanism shall not be attached to the compartment door.

4. Each compartment for combination starters, breakers, and disconnect switches shall be draw-out construction, containing individual units. Draw-out provisions shall include a positive guide rail system and stab shrouds to absolutely ensure alignment of stabs with the vertical bus. The stabs shall be tin plated copper alloy and shall provide a self-aligning pressure connection. The stab design shall ensure a consistent low-resistance contact with the vertical bus even after repeated insertions and removals. Power wiring to stabs shall be contained within the draw-out unit. No wire shall extend behind the unit.

5. All similar compartments shall have the same structural features and the units

ATEEM – December 2024
270-30-23-22
16480 - 6
Motor Control Center
City of Milpitas
WellUpgrades Program
McCandless Well Facility
shall be interchangeable.

6. With the disconnect in the "on" position, a mechanical interlock shall prevent opening of the door. This interlock shall be provided with a defeater so that authorized personnel may gain access to the compartment without interrupting service. This interlock shall also prevent unintentional closing of the disconnect when the compartment door is open. A second mechanical interlock shall prevent any possibility of removing or reinserting the draw-out unit while the disconnect is in the "on" position.

7. The operator mechanism shall allow padlocking of the disconnect in the "off" position with up to three padlocks.

8. Compartment interconnect wiring shall be connected to pull apart terminal blocks.

9. Pushbuttons, selector switches, and indicating lights shall mount where shown on the Drawings on a removable device panel which is part of the draw-out unit. The device panel shall not be part of the door.

10. Compartments containing panelboards shall have panelboards installed per Section 16470.

11. Compartments containing motor starters shall each have an overload selection table posted inside the door.

12. MCC compartmentslabeled asspace shall have a blank hinged door and draw out relay panel installed, occupying the full space area.

13. Circuit breakers feeding Soft Starters or VFDs shall have true adjustable Long, Short and Instantaneous trip units.

14. Circuit breakers with a frame size of 450 amperes to 1200 amperes shall be molded case with electronic microprocessor based RMS trip elements. Molded case circuit breakers with electronic trip shall be Eaton Series C N-Frame Type NGH with Digitrip 310+ Electronic ALSIG trip unit, or equal. The interrupting capacity of all main, and feeder branch circuit breakers shall be a minimum of 65,000 RMS symmetrical amperes at operating voltage.

15. Circuit breaker trip unit shall be equipped with 24 VDC coil for “Maintenance Mode” for arc flash reduction when shown. Maintenance mode selection switch (Maintenance Mode or Normal Mode selection) shall be installed on Panel face near main breaker. 24 VDC supply shall come from PLC Panel.

16. Provide all pilot devices with descriptive engraved nameplates.

17. All metal panel doors shall be installed with ground straps, including all MCC bucket doors.

2.02 SURGE PROTECTIVE DEVICE
A. The surge protective device shall be rated for voltage on a 480V VAC, 3 phase system as shown on Contract Drawings. The transient current the surge protective device shall dissipate 250,000 amps minimum per phase. Provide fuses feeding the surge protective device. Locate surge protective device so that the indicating lights are viewable without removing panels. The surge protective device shall be Eaton SPD, Leviton, or approved

ATEEM – December 2024
270-30-23-22
16480 - 7
Motor Control Center
City of Milpitas
WellUpgrades Program
McCandless Well Facility
equal.

2.03 POWER MONITOR
A. Meter Module:

1. The meter module shall be a microprocessor-based monitoring and control instrument. The meter module shall accept the following: a 3 phase, 0-5A ac, current signal; and a 3 phase, 0-208V ac, line to line, voltage signal. A 480V to 120 VAC fuse protected switchboard control power transformer shall be provided inside transition section to provide power to meter and display modules. The meter module shall be mounted inside the transition section (not on a door) in a location protected from electrical noise. The meter module shall be connected to the display module via fiber cable.

2. The meter module shall be Eaton, Allen-Bradley Powermonitor 5000 with communication module necessary for data transfer to PLC, or approved equal.

B. Display Module:

1. The display module shall be the display portion of the multi-function meter. The display module shall be used to configure the meter module and display the electrical metered parameters. The display module shall be 120 VAC powered and shall be mounted on the switchboard transition section door.

2. The display module shall be Eaton, Allen-Bradley's Bulletin Powermonitor 5000 Display Module, or approved equal.

C. Provide four (4) port (minimum) managed switch with power monitor system to connect power monitor system to overall Ethernet network

2.04 FLOOR MATS
A. Provide flat, smooth, rubber mats in front of each MCC. Mat shall extend the full length of the MCC section. Mat shall have a minimum width of 36 inches extending out from the front of MCC. The mat supplied shall be specifically made for this insulation/isolation application.

PART 3 - EXECUTION

3.01 SECTION INCLUDES
A. Requirements for testing piping that will operate under pressure.

3.02 WORKMANSHIP
A. All work in this Section shall conform to the safety lockouts, codes and standardsspecified in Section 16010 - Electrical.

B. The Supplier shall employ personnel that are skilled and experienced in the startup and testing of all elements, equipment, devices, instruments, accessories, and assemblies. All installation labor shall be performed by qualified personnel who have had experience on similar projects. Provide first class workmanship for all installations.

C. Ensure that all equipment and materials fit properly in their installations.

D. Electrical Section 16010 – General Construction Methods and General Equipment Fabrication apply to the construction and assembly of MCCs.

ATEEM – December 2024
270-30-23-22
16480 - 8
Motor Control Center
City of Milpitas
WellUpgrades Program
McCandless Well Facility
E. Perform any required work to correct improper installations at no additional expense to the City.

3.03 INSTALLATION
A. MCCsshall be factory inspected and witnesstested by the City prior to it being shipped to the jobsite. If a MCC shows up at the jobsite and has not been previously inspected, tested and approved for shipping by the City, then the Contractor shall remove the MCC from the jobsite and return it to the factory for factory inspection and witness testing, all at the expense of the Contractor.

B. The as-built Electrical Drawings shall be placed in a water tight plastic wrap and shipped with the MCCs to the jobsite. As-Built drawings shall be updated and replaced prior to final acceptance.

C. Vertical Sections shall be mounted, leveled, and anchored to the concrete pad.

D. In general, all conduits entering or leaving a MCC shall be stubbed up into the bottom horizontal wireway directly below the vertical Section in which the conductors are to be terminated.

E. All motor starters that utilize changeable overload heater elements shall be furnished to the job site without the elements installed. After the mechanical equipment arrives, the Electrical Contractor shall check the nameplates for the full load amperage (FLA) rating and select the appropriate overload element to be installed. Electronic overloads shall be adjusted based on equipment nameplate FLA rating.

F. Field interconnect wiring to the MCCsshall be neatly grouped by compartment and bound by plastic ty-wraps. All wiring shall be supported so that circuit terminations are not stressed.

G. All lugs shall be copper sized for wires listed in the Conduit and Wire Routing Schedule.

H. Construction of MCC Sections shall be modular to allow installation of MCCs in buildings through standard access doors.

I. MCC Supplier to provide all necessary copper lugsfor connection of power cablesto MCC bus and breakers.

J. Bottom of MCCs shall be sealed to prevent the entry of insects and rodents.

K. Clean and touch up paint MCC surfaces prior to final punch list.

L. Clean and vacuum the interior of MCC prior to applying power and at the end of project, prior to final acceptance.

3.04 FIELD TESTS
A. Provide field testing of MCCs as specified in Section 16010.

B. All breakersshall be setto values determined by Section 16605 Electrical System Analysis.

Breakers shall not be turned on until they have been set and field tested.

3.05 SPARE PARTS
A. Provide 1 cup of each color used for exterior paint finish of MCC to City for its use.

B. Spare parts shall be provided as specified in Section 16010.

ATEEM – December 2024
270-30-23-22
16480 - 9
Motor Control Center
City of Milpitas
WellUpgrades Program
McCandless Well Facility

3.06 WARRANTY
A. Provide warranty as specified in Electrical Section 16010 – Warranty.

END OF SECTION

ATEEM – December 2024
270-23-23-22
16481 - 1
Variable Frequency Drive
City of Milpitas
WellUpgrades Program
McCandless Well Facility
SECTION 16481

VARIABLE FREQUENCY DRIVE
PART 1 - GENERAL

1.01 SCOPE OF WORK
A. The Contractor shall supply VFDs along with complete startup and testing services for the variable frequency drive (VFD) as specified herein. This document describes the function and operation of the system and particular components, but does not necessarily describe all necessary devices. All components and devices shall be furnished and installed as required to provide a complete operable and reliable system for accomplishing the functions and meeting the performance set forth hereinafter at no additional cost to the City.

B. Furnish all required labor, materials, safety equipment, transportation, test equipment, incidentals and services to provide a complete and operational system as described in these Specifications, or required for fully operating facility.

C. Work includes that specified in Division 16.

D. The VFD scope of work includes providing:

1. Providing each modular variable frequency drive as shown on Contract Elementary Drawings. Variable frequency drive shall be provided with fully speed bypass where shown on Contract Drawings. All VFDs shall be of the same manufacturer.

2. Providing active harmonic filter, cooling system, mounting hardware, associated miscellaneous devices, and field control stations.

3. Installation of the complete VFD systems with components asspecified in Section 16010 - Electrical.

4. Submittal data and Drawings.

5. Startup assistance.

6. Testing.

7. Operation and maintenance manuals.

8. Warranty of all components of the VFD system.

1.02 JOB CONDITIONS
A. Rate the equipment to meet the job conditions listed in Section 16010 – Electrical.

B. All the VFDs shall be rated for continuous full load operation when powered from the normal Utility power.

1.03 SUBMITTALS AND DRAWINGS
A. Provide Submittals and Drawings as specified in Section 16010 - Electrical.

ATEEM – December 2024
270-23-23-22
16481 - 2
Variable Frequency Drive
City of Milpitas
WellUpgrades Program
McCandless Well Facility
B. Include a record of each VFD parameter setup during startup and testing that is not factory default and placed a copy in each O & M manual.

1.04 OPERATION AND MAINTENANCE MANUALS
A. Provide operation and maintenance manuals asspecified in Section 16010 - Electrical.

B. Include a record of each VFD parametersetup during startup and testing and place a copy of setting in each O & M manual.

PART 2 - MATERIALS

2.01 QUALITY
A. It isthe intent of the Contract specifications and drawings to secure the highest quality in all materials and equipment in order to facilitate operation and maintenance of the facility. All equipment and materialsshall be new and the products of reputable suppliers having adequate experience in the manufacture of these particular items. For uniformity, only one manufacturer will be accepted for each type of product.

B. All equipment shall be designed for the service intended and shall be of rugged construction, of ample strength for all stresses which may occur during fabrication, transportation, erection, and continuous or intermittent operation. All equipment shall be adequately stayed and braced and anchored and shall be installed in a neat and workmanlike manner. Appearance and safety, as well as utility, shall be given consideration in the design of details. All components and devices installed shall be standard items of industrial grade, unless otherwise noted, and shall be of sturdy and durable construction suitable for long, trouble free service. Light duty, fragile and competitive grade devices of doubtful durability shall not be used.

C. Products that are specified by manufacturer, trade name or catalog number established a standard of quality and do not prohibit the use of equal products of othermanufacturers provided they are favorably reviewed by the City's Engineer prior to installation.

D. Underwriters Laboratories(UL) listing isrequired for allsubstituted equipment when such a listing is available for the first named equipment.

2.02 VARIABLE FREQUENCY DRIVE
A. General:

1. The variable frequency drive shall be ABB ACS 550, Allen-Bradley 755 series, Eaton or approved equal with remote digital controller and display unit. Each VFD shall have motor terminator unit supplied and installed near motor.

B. Load - The VFD shall be designed to continuously operate the following motor/pump load.

1. The power section shall consist of six (6) SCRs, rated for a minimum repetitive peak inverse voltage of 1400 V at 480 VAC. The power section shall be capable of the following:

2. Motor,squirrel-cage induction.

3. Pump, per Mechanical Division Specification.

4. Horsepower, size (minimum) with 1.15 service factor shown on Contract Drawings, at Full speed R.P.M. for supplied pump motor.

ATEEM – December 2024
270-23-23-22
16481 - 3
Variable Frequency Drive
City of Milpitas
WellUpgrades Program
McCandless Well Facility

5. Continuous current at rated voltage, as shown on Contract single line diagrams, three phase, 60 cycle.

C. The harmonic distortion shall meet the requirements of IEEE519. Provide additional filtering equipment as required at no additional cost to City.

D. The VFD shall be able to start into a spinning motor. The VFD shall be able to determine the motor speed in any direction and resume operation without tripping. If the motor is spinning in the reverse direction, the VFDs shall start into the motor in the reverse direction, bring the motor to a controlled stop, and then accelerate the motor to the preset speed.

E. The VFD shall not be affected by or generate excessive electro-magnetic interference (EMI). The VFD shall be provided with a radio interference filter (RIF) to meet the following requirements:

1. The use of a 4 Watt hand-held VHF/UHF transceiver within three feet of the VFD with its doors closed shall not cause erratic operation, loss of configuration, or any other deviation from normal operation.

2. Provide RFI/EMI filter on line side of VFD. Filter shall attenuate conducted radio frequencies or EMI to meet FCC standards for conducted emissions.

3. The worst case conducted and radiated EMI generated by the VFD shall not be enough to prevent the use of hand held VHF-UHF transceivers within three feet of the VFD with its doors closed.

F. Digital programmer/controller –The VFD shall be provided with a door mounted alphanumeric human interface module (HIM) digital display with keypad to view and adjust the diagnostic and status indicators. Provide manual single turn potentiometer for manual speed control.

G. Each controller shall automatically restart upon reapplication of power after a loss of line power without requiring a manual reset. Momentary orsustained power failuresshall not fault trip out the controller or blow any fuses.

H. Input and Output Terminations - The VFD assembly shall have functional conduit entry provisions and termination points at terminal blocks as shown on the Contract "E"-Series and Elementary Drawings.

I. Panel Mounted Ethernet port – Provide panel mounted Ethernet port connected directly to each VFD drive Ethernet port. Ethernet port shall be UL recognized, Category 6, RJ45- Bulkhead with cast aluminum base housing, 304 stainless steel latch, and polycarbonate UV rated gasketed cover. Ethernet port shall be Grace Engineered Products or approved equal.

J. Provide Ethernet port for PLC communication.

K. Enclosure - The enclosure shall be motor control center construction as specified in Section 16480 - Motor Control Centers. All components shall be accessible from the front of the enclosure. Rear or side access shall not be required in order to remove or service any component. The enclosure shall include the following in its construction:

1. Copper lugs sized for wires listed in the Conduit & Wire Routing Schedule and provisions for connecting the motor power leads to output of the SSS shall be provided at the bottom of the enclosure.

ATEEM – December 2024
270-23-23-22
16481 - 4
Variable Frequency Drive
City of Milpitas
WellUpgrades Program
McCandless Well Facility

2. The VFD shall incorporate fans for cooling. The air flow through the VFD compartment shall provide proper cooling of the operating VFD at an ambient temperature of 110° Fahrenheit. The thermostat shall be designed to regulate and monitor air temperature in the VFD enclosure. Thermostat shall have bimetallic adjustable set point range of 30 to 140° F. Thermostat shall have a switching capacity of 10A at 120 VAC.

3. The complete VFD unit, including the enclosure assembly, shall be U.L. listed for a minimum of 65,000 RMS symmetrical ampere fault withstand capability. VFD assemblies consisting of the VFD, enclosure and all accessories that are not U.L. listed will not be approved.

4. Provide all vents and louvers with removable metal filters.

2.03 ACTIVE HARMONIC FILTER
A. General:

1. Active harmonic filter shall supply non-fundamental current demanded by the non-linear load that results in a near sinusoidal current being drawn from the supply. DC bus shall store power for power semiconductor switching. Filter shall maintain power factory between 0.95 and 0.999 lagging when operating. Active Harmonic Filter shall be Transcoil Inc. (TCI) Harmonic Guard active harmonic filter with current transformers and associated devices, Schneider Electric, Eaton or approved equal.

B. Design:

1. The active harmonic filter shall:
a. Be provided with over-current and current limiting self-protection.

Operation shall continue indefinitely at manufacturer defined safe operating levels without trip off or destruction of the active harmonic filter.
b. Have inductive elements in the power circuit be coreless, in order to maintain constant inductance and avoid saturation at high current levels c. The active harmonic filter shall feature a fully digital, broadband current regulator with progressive gains to eliminate system resonance tuning issues and simplify startup and commissioning.
d. The active harmonic filter shall feature single processor control of all power electronic devices per a single active filter to reduce fault response latency and harmonic correction loop times

2. Filter shall have built in redundancy so at least one half of the corrective current capacity is available after a normal single point fault

3. Two distinct levels of faultsshall be employed:
a. Critical level faults(all other faults)stop the function of the unit and await operator action to restart. The run relay shall be disabled and the fault relay enabled. Operator shall be required to initiate a power reset (cycle power off and on) to restart the active harmonic filter. b. Non-critical level faults (e.g. AC line power loss) will provide automatic restart and a return to normal operation upon automatic fault clearance

ATEEM – December 2024
270-23-23-22
16481 - 5
Variable Frequency Drive
City of Milpitas
WellUpgrades Program
McCandless Well Facility
without operator initiation.

4. The logic of the active harmonic filter shall monitor the load current by utilizing two (2) current transformers (CTs) mounted on phases A and C in the Main Switchboard to direct the function of the power electronic converter.

5. Filter shall be rated for 480V, 3 phase, 3 wire plus ground with +/- voltage tolerance. Input circuit breaker shall be rated for 100KAIC.

6. Filter shall correct harmonic and voltage distortion to meet IEEE 519.

C. Controls:

1. Automatically start to correct harmonic currents after power-up without operator intervention.

2. Operational Modes: (selectable at Operator Interface)

3. Harmonic Correction Only

4. Power Factory Correction Only Mode

5. Combination Harmonic and power factory mode.

6. Remote Monitoring: Provide configurable relay based run/stop command inputs and manual and auto run/stop commands.

7. Provide ability to load and save operational parameters and revert to factory default settings.

8. Integral serial RS-485 field bus slave network connection for Modbus RTU.

D. Operator Interface:

1. Operator interface shall be 5.6”, color with LED backlight.

2. Provide Home, Status, Fault and Setup screens(minimum).

3. Display THD, Power Factor, RMS current, RMS voltage, and fault history. Graph wave forms of both RMS current and voltage.

4. Graphically display active filter current usage (0-100% capacity). Show nominal operation and “at capacity” operation.

5. Display trends history data for four operator selectable variables.

E. Enclosure:

1. Active harmonic filter shall be installed in MCC lineup.

2. Door shall be interlocked with the circuit breaker to prevent the door from being opened when the unit is energized.

3. Enclosure shall have flush door-mounted digital Operator Interface.

PART 3 - EXECUTION

3.01 WORKMANSHIP
A. All work in this Section shall conform to the codes and standards specified in Electrical Section 16010.

ATEEM – December 2024
270-23-23-22
16481 - 6
Variable Frequency Drive
City of Milpitas
WellUpgrades Program
McCandless Well Facility
B. The Supplier shall employ personnel that are skilled and experienced in the startup and testing of all elements, equipment, devices, instruments, accessories, and assemblies. All installation laborshall be performed by qualified personnel who have had VFD experience on similar projects. Provide first class workmanship for all installations.

C. Ensure that all equipment and materials fit properly in their installations.

D. Electrical Section 16010 -subsectionslabeled General Construction Methods and General Equipment Fabrication applies to the construction and assembly of VFDs.

E. Perform any required work to correct improper installations at no additional expense to the City.

F. All equipment installed by the Contractor shall be in accordance with the Drawings and the manufacturer's recommendations and instructions and shall operate to the Engineer's satisfaction. Follow all manufacturer's instructions for handling, receiving, installation, and pre-check requirements prior to energization. After energization, follow manufacturer’s instructions for programming, set-up and calibration of equipment. The Contractor shall be responsible for, and shall correct by repair or replacement, at his own expense, equipment that, in the opinion of the Engineer has been caused by faulty mechanical or electrical assembly by the Contractor. Necessary tests to demonstrate that the electrical and mechanical operation of the equipment is satisfactory and meets the requirements of these Specificationsshall be made by the Contractor at no additional cost to the City.

3.02 MAINTAINABILITY
A. The following minimum provisionsshall be included for the VFD assembly maintainability:

1. All control circuit voltages (12 VDC, 24 VDC and 120 VAC) shall be physically and electrically isolated from power circuit voltages (380 to 600 VACS) to ensure safety to maintenance personnel.

2. A control compartment for all low voltage signals and circuit boards shall be provided which is physically separated from the power compartment and power wiring.

3. All printed circuit boards shall utilize quick disconnect plugs and/or pull apart terminal blocks to facilitate maintenance by providing quick change out without disconnecting terminal strip connections thereby reducing wiring errors.

4. The VFD assembly shall be modular in construction to provide for ease and speed of maintenance. The modules shall be designed to allow for their removal by one maintenance technician.

5. The VFD shall be capable of starting and operating without a motor connected in order to run tests of only the VFD assembly.

6. The supplier of the VFD shall have a factory trained service representative in domestic residence within 150 miles of the jobsite. This factory representative shall be trained in the maintenance and troubleshooting of the equipment specified herein.

7. The complete VFD assembly shall be manufactured in the U.S.A.

3.03 RELIABILITY

ATEEM – December 2024
270-23-23-22
16481 - 7
Variable Frequency Drive
City of Milpitas
WellUpgrades Program
McCandless Well Facility
A. The quality assurance and testing program shall at a minimum consist of the following:

1. Component testing - All power semiconductors and integrated circuits shall be 100% tested.

2. Computerized ATE testing - Computerized automated test equipment (ATE) shall be used to evaluate the functional performance of printed circuit boards. Printed circuit boards shall receive a thermal stress test with temperatures cycled between 0° C and 65° C and receive electrical power-on and power-off cycle tests.

3. System testing - The complete VFD assembly mounted in MCC for this project shall be tested at the systems house prior to shipment. All modes of operations shall be tested with a small motor load to check functionality in compliance with the specifications.

4. Failures - The manufacturer shall repeat each entire test upon any component failure, modification, or replacement. All component failures, modifications, or replacements shall be listed on the test documentation.

5. A complete description of suppliers’ quality assurance and testing program shall be included in this submittal.

3.04 FIELD ASSISTANCE
A. Field testing, checkout and start-up of the VFD equipment shall be performed under the technical direction of the VFD manufacturer's field service engineer. Submit resume for approval of field service engineer proposed to do VFD startup one (1) week prior to energizing any VFD in field. Under no circumstances are any portions of the drive system to be energized to run motor loads without authorization from the manufacturer's field service engineer.

1. The setup and programming of each VFD shall be provided by a factory-trained representative who is authorized by the VFD manufacturer to perform the startup. This setup and programming shall be done prior to and during the first application of power to the pump motor. Each VFD electronic motor overload protection shall be set to meet the NEC Code requirements.

2. Provide operating testing as specified in Section 16010 - Electrical.

B. Provide 2 hours of “VFD Setup” Training on operating and maintenance procedure.

3.05 WARRANTY
A. Provide warranty asspecified in Electrical Section 16010 -subsection Warranty.

END OF SECTION

ATEEM – December 2024
270-30-23-22
16605 - 8
Electrical System Analysis
City of Milpitas
WellUpgrades Program
McCandless Well Facility
SECTION 16605

ELECTRICAL SYSTEM ANALYSIS
PART 1 - GENERAL

1.01 SUBMITTALS
A. Provide the following submittals per Section 16010 for the electrical power system from the 480V system down to and including the 240/120V distribution system:

1. Short Circuit Study.

2. Protective Device Coordination Study.

3. Arc Flash Study.

B. All Electrical Analysis Studies shall be prepared, stamped and signed by a professional Electrical Engineer registered in the State of California and in accordance with IEEE 242, IEEE 399 ANSI/IEEE C37.13 and IEEE 519.

C. Exceptions/ Clarifications

1. Itemize all exceptions and clarifications to the Contract Documents in a letter (located in the front of the submittal) on company letterhead.

2. Exceptions that are noted in the study, but not listed on the Exceptions/Clarifications letter, will be considered as non-responsive and not accepted as changes to the Contract Documents.

3. All exceptions taken from the Drawings and specifications shall be documented with justifications. When noting the exception, list which Drawings or which Specification Subsection number the exception is taken.

4. Clarification requests shall list which Drawing or Specification Subsection number the clarification is required for.

D. Provide two (2) USBs at the completion of the project. One USB will contain the as-built set of studies, reports, settings, etc. The other USB will contain the originalsource format of input data used for the PC based computer software, including all SKM files used to create the studies. Provide all setup information used for the computer based study and report.

E. For each resubmittal, provide a copy of submittal comments and a separate letter, on Company letterhead, identifying how each submittal comment has been addressed in the resubmittal.

F. When submittals are provided in PDF format, utilize the “Bookmark” feature of the Adobe Acrobat and clearly bookmark locations in the report to identify sections in the Report’s Table of Contents. Bookmarks shall not be out of order; the English description shall match that listed in the Report’s Table of Contents.

ATEEM – December 2024
270-30-23-22
16605 - 9
Electrical System Analysis
City of Milpitas
WellUpgrades Program
McCandless Well Facility

1.02 SEQUENCING AND SCHEDULING
A. It is the responsibility of those performing the electrical system analysis to collect and field verify all data. This includes verifying existing electrical distribution and obtaining all data from the Utility Company, Generator supplier and vendors necessary for completing the requested studies. Utilize proposed load data for the Studies obtained from submittals, Utility Company, Generator manufacturers, field verifications, etc.

B. A complete Protective Device Coordination Study shall be submitted within 60 days after approval of Short Circuit Study.

C. At the completion of the project, all studies shall be resubmitted with all calculations rerun, data and graphs updated to reflect as-left conditions. Provide new Arc Flash labels to reflect as-constructed equipment and as-left circuit breaker settings.

D. When previous electrical system analysis studies are available and provided to the Contractor, it is the Contractor’sresponsibility to verify the accuracy of the data used and to update it to match existing conditions.

PART 2 - MATERIALS

2.01 GENERAL
A. Equipment and component titles and numbers used in the Studies shall be identical to the equipment and component titles and numbers shown on the Drawings.

B. Perform Studies using PC based computer software. State program name and version (e.g. version 2.1) in report.

C. Perform complete fault calculations for Utility and generator sources. Equipment shall not be grouped as a single large load; they shall be treated as individual loads. When generators are incorporated into the system, develop two separate networks: one with utility only (no generator attached) and one with generator only (no utility attached) D. Complete protective device coordination study listing all device settings shall be utilized during start-up of electrical equipment.

E. Provide unique page numbers for every sheet in all Studies. Unique page numbers to be manually placed by Study Company after printout if study report doesn’t assign page numbers.

F. One line diagrams

1. Shall be readable on 11” x 17” paper. One line diagram shall be redrawn in AutoCAD on multiple sheets if necessary or as requested by City.

2. Buses and branches shall have descriptive names matching one line diagram or existing system (i.e. not Bus-0084). Automatic transfer switches (ATSs) and Main Switchboards (MSBs) shall not have multiple node buses.

3. Automatic transfer switches (ATSs), Main Switchboards (MSBs), shall not have multiple node buses.

4. Primary and secondary for transformers, Variable Frequency Drives (VFDs), etc. shall be changed to node buses.

ATEEM – December 2024
270-30-23-22
16605 - 10
Electrical System Analysis
City of Milpitas
WellUpgrades Program
McCandless Well Facility
G. Multiple scenarios for the short circuit and arc flash reports shall be provided.

1. Maximum available fault current from utility transformer:

2. Maximum available fault current from Generator (when shown)

3. Do not combine networks when multiple sites are modeled.

4. All studies shall be repeated with the arc flash reduction switch enabled (where applicable).

2.02 SHORT CIRCUIT STUDY
A. Include in short circuit study the following:

1. Cable impedances based on copper conductors.

2. Bus impedances based on copper bus bars.

3. Transformer impedances based on tolerances specified in ANSI C57.12.00.

4. Source date (i.e. cable lengths, sizes, and quantity, for all runs in study, listing of bus loads, etc.).

5. Utility data:
a. Size of Utility transformer.
b. Impedance of Utility transformer.
c. Primary voltage of Utility transformer.
d. Fault information on primary side of Utility transformer:
1) Three phase bolted fault.
2) X/R ratio (positive sequence).
3) Line to ground fault.
4) X/R ratio (zero sequence).
5) Protective relays (type & settings).

6. Voltage drop and current flow at each node and load in system.

B. Calculate Short Circuit interrupting duties for an assumed three-phase bolted fault and line-to-ground fault at each of the following locations:

1. Power transformer’s primary.

2. Main Switchboard.

3. All Motor Control Centers (MCCs).

4. All panelboards.

5. All 480V, 3 phase motor and equipment loads.

ATEEM – December 2024
270-30-23-22
16605 - 11
Electrical System Analysis
City of Milpitas
WellUpgrades Program
McCandless Well Facility

6. All 3 phase transformer secondaries.

7. All 240/208V equipment.

C. Verify:

1. Equipment and protective devices are applied within their ratings.

2. Adequacy of switchboard, panelboard and MCC bus bars to withstand Short Circuit stresses.

3. Adequacy of transformer windings to withstand Short Circuit stresses and overcurrent.

4. Cable sizes for ability to withstand normal and fault load currents.

D. Provide the following in the Short Circuit study report:

1. Calculation methods and assumptions.

2. Input data.

3. Short circuit data.
a. Impedances.
b. X to R ratios.
c. Asymmetry factors.
d. Motor contributions.
e. Short Circuit kVA.
f. Symmetrical and asymmetrical line-to-line and line-to-ground fault currents.
g. Device evaluation including rating of equipment.
h. Bus evaluation including rating of equipment.
i. Source data, from Electric Utility Company. Include copy of correspondence with Utility Company indicating values used. j. Source data from Generator Supplier (where applicable). Include copy of Generator provided values used.

4. Tabulations of calculated quantities.

5. Results, conclusions, and recommendations.
a. Spreadsheet comparing calculated fault current, equipment rating and protective device rating.

6. One line diagrams of distribution system

7. Impedance diagram showing the resistances and reactances for all cables of the distribution system.

2.03 PROTECTIVE DEVICE COORDINATION STUDY

ATEEM – December 2024
270-30-23-22
16605 - 12
Electrical System Analysis
City of Milpitas
WellUpgrades Program
McCandless Well Facility
A. Provide Protective Device Coordination drawings for each section of distribution system that includes the following:

1. Graphically diagram displaying coordination time-current curves (TCC) on conventional log-log curve sheets. Each time-current curve shall have a unique identifier label (e.g. Two TCCs shouldn’t be labelled MCC-1 & pump 1). This identifier shall be used in the tabulated settings spreadsheet and on the associated one-line diagram.

2. Time-current curves shall include the following curves(minimum):
a. Utility relays(phase & ground) and high voltage switchgear relays (phase and ground).
b. All upstream protective devices and breakers.
c. All mechanical overloads.
d. All MCP breaker and associated motor or equipment load. Duplicates of the same sized protective device and motor size may be omitted (i.e., when there are 3 pumps for same application).
e. All transformers and associated primary and secondary protection. f. Unique identifier for each protective device.
g. Provide separate TCC for phase and ground curves.
h. TCC for Ground curves shall include the transformer magnetizing inrush currents for all transformers downstream of the circuit breaker. Ground shall clear the inrush currents.

3. One-line diagram that appliesto specific portion of distribution system associated with time-current curves. One-line diagram shall include the following:
a. Location of each device.
b. Power and voltage ratings, primary and secondary transformers amperages.
c. All significant circuit elements such as transformers, cables, breakers, fuses, relays, etc. with their corresponding amperage ratings. d. Tag of each branch and node (shall be the same tags used in short circuit study).
e. Mechanical overload and contactor.
f. English description, equipment name, HP, and full load amp rating of motors and other 3 phase loads.
g. Terminate device characteristic curves at a point reflecting maximum fault current to which device is exposed as calculated in short circuit study.

4. Time current curves shall be provided for all protective devices with adjustable settings.

B. Characteristics plotted on time current curves shall include:

ATEEM – December 2024
270-30-23-22
16605 - 13
Electrical System Analysis
City of Milpitas
WellUpgrades Program
McCandless Well Facility

1. Protective current relays.

2. Fuses including manufacturer’s minimum melts, total clearing, tolerance, and damage bands.

3. Circuit breaker trip devices, including manufacturer’stolerance bands.

4. Transformer full-load currents at 100% and 600%.

5. Motor and equipment full load currents. Motors fed from VFDs and Soft Starters shall have their starting curves adjusted according to inrush currents on the TCC.

Motors on TCC shall show the DC offset for VFD and Soft Starter fed pumps.

6. Transformer magnetizing inrush currents.

7. Transformer damage curves.

8. ANSI transformer withstand parameters.

9. Fault currents.

10. Ground fault protective device settings.

11. Other electronic protective devices.

C. Provide the following recommended settings in spreadsheet format in the Protective Device Coordination study report:

1. Relay settings including CT values.

2. Circuit Breakers adjustments:
a. Long Delay Pickup and Time.
b. Short Time Pickup and Time.
c. Instantaneous Pickup and Time.
d. Ground Pickup and Time.

3. Programmable settings for all electronic devices. Settings for non-current relay settings shall also be provided.

4. Settings shall be given both in amps and seconds as well as the corresponding physical setting (i.e. 30A and setting B on MCP) for device.

5. Identify protective device associated with each curve by manufacturer type, function and part number.

2.04 ARC FLASH HAZARD STUDY
A. General:

1. Arc flash boundary and incident energy shall be calculated, using a PC computer program, at all significant locations in the electrical network, including

ATEEM – December 2024
270-30-23-22
16605 - 14
Electrical System Analysis
City of Milpitas
WellUpgrades Program
McCandless Well Facility
switchgears, switchboards, MCCs, transformers, etc. where work could be performed on energized equipment.

2. Arc flash computation shall include both line and load side of main breaker calculations, where necessary.

3. Document specific method of NEC calculation used.

4. Do not include the motor contribution of motors fed by VFDs in the arc flash hazard study.

B. Safe working distances shall be specified for calculated fault locations based upon the calculated arc flash boundary considering an incident energy of 1.2 cal/cm2.

C. Study shall include the following:

1. All significant locations in 480 volt, 240 volt and 208 volt systems fed from transformers equal to or greater than 125 kVA.

2. Incident energy and flash protection boundary calculationsin spreadsheet format in the Arc Flash Hazard study report.

3. Provide the following incident energy and flash protection boundary calculations in spreadsheet format in the Arc Flash Hazard study report (values shall be calculated for all electrical equipment in the power distribution system):
a. Arcing fault magnitude
b. Device clearing time
c. Duration of arc
d. Boundary for:
1) Arc flash protection
2) Limited shock approach
3) Restricted shock approach
e. Working distance
f. Incident energy at 18 inches (in cal/sq.-cm)
g. Recommendationsfor arc flash energy reduction for each location having more than 8 cal/sq.-cm. Provide preliminary cost estimate for implementing recommendations.
h. Provide separate spreadsheets for all scenarios listed in subsection

2.01.G. Do not combine the spreadsheet values nor only provide the worst case scenario. Clearly list on each spreadsheet the English description of the Scenario presented.

4. Provide recommendations for the Personal Protective Equipment (PPE) that the City should maintain on site.

5. Provide recommendations for safety label design that should be posted on electrical equipment.

2.05 STUDY REPORTS

ATEEM – December 2024
270-30-23-22
16605 - 15
Electrical System Analysis
City of Milpitas
WellUpgrades Program
McCandless Well Facility
A. Written reports submitted for approvalshall contain:

1. Scope of Studies performed.

2. Explanation of bus and branch numbering system.

3. Report calculations, tabulations and spreadsheets.

4. Selected equipment deficiencies.

5. Results of all Studies.

6. Comments, recommendations orsuggestionsregarding:
a. Changes and additionsto equipment rating and/or characteristics. b. Circuit protective devices improperly rated for overload or fault conditions.
c. Arc Flash protective equipment and safety labels.

7. Tabulation spreadsheet for all protective device settings with the following column entries (minimum):

Device
Code Description MFR Type Plug Trip Frame KAIC Long Time Short Time Inst Ground Amps Time Amps Time Amps Amps Time

8. Stamped, signed and dated by Electrical Engineer registered in the State of California who performed the analysis.

B. Reports are to be updated to reflect as-built conditions and placed in O&M manual per Section 16010 requirements.

PART 3 - EXECUTION

3.01 GENERAL
A. Make minor modificationsto equipment settings as required to accomplish conformance with the Short Circuit and Arc Flash Studies.

B. Notify Engineer in writing of any required major equipment modifications.

3.02 FIELD TESTS
A. Provide field testing of protective equipment.

B. Adjust relay and protective device settings according to values established by Coordination Study.

3.03 ARC FLASH WARNING LABELS
A. All Arc Flash warning labels shall meet latest NEC requirements, OSHA standards and NFPA recommendations.

B. Provide and install 4 in. x 6 in. thermal transfer type labels of high adhesion polyester for each work location analyzed and as required by the NEC for flash protection on power distribution equipment.

ATEEM – December 2024
270-30-23-22
16605 - 16
Electrical System Analysis
City of Milpitas
WellUpgrades Program
McCandless Well Facility
C. Each label shall have an orange header with the wording, “WARNING, ARC FLASH HAZARD,” and shall include the following machine printed information:

1. Location Designation

2. Nominalsystem voltage

3. Arc Flash boundary

4. Available incident energy and working distance

5. Minimum arc rating of clothing

6. Site specific Level of PPE

7. Engineering report number, revision number and issue date.

8. Company preparing study and phone number.

D. Labels shall not be hand labeled.

E. For all areas, Contractor shall post the following:

1. Working distances

2. Shock hazard voltage

3. Shock Approach Boundaries:
a. Limited
b. Restricted
F. Provide Arc Flash labels for the each of the following pieces of equipment:

1. Switchboard

2. Switchgears

3. 480V and applicable 208V panelboards

4. MCCs

5. Disconnect Switches

6. Control Panels

7. All electrical equipment with an incident energy level greater than 1.2 Cal/cm2.

8. Where Switchgear, Switchboard, MCC, Panelboard, Distribution Panel, etc. feed multiple circuit breakers from the enclosure, provide separate line and load side Arc Flash Labels for the Main Circuit Breaker.

9. Provide separate labels at each circuit breaker that has arc flash reduction switches indicating the appropriate values when the switch is enabled.