San Luis Obispo City Council
June 7, 2022

DRAFT - NOT FOR CONSTRUCTION
RESTROOMS AND TRASH SERVICES 015210-1
City of SLO WTP Generator Improvement - 2 Mar 2022
SECTION 015210 RESTROOMS AND TRASH SERVICES

1.01 RESTROOMS
A. Furnish and maintain chemical toilets for use by workers and subcontractors. These facilities shall be serviced and provided with necessary sanitary supplies by a janitorial/cleaning service retained by the Contractor on a minimum weekly basis.

B. Use of City restrooms is prohibited.

1.02 TRASH SERVICES
A. Furnish and maintain trash receptacles. Furnish enough closed-lid dumpsters of sufficient size to contain the solid waste generated by work activities. Dumpsters must be watertight. Do not wash out dumpsters at the job site.

B. Furnish and use trash containers in the job-site, field trailers, and locations where workers gather for lunch and breaks.

C. Do not allow litter, trash, or debris to accumulate anywhere on the site. Pick up and remove litter, trash, and debris from the job site daily.

D. Convey contents to a sanitary landfill on a weekly basis.

E. Use of City waste receptacles is prohibited.

END OF SECTION

DRAFT - NOT FOR CONSTRUCTION
OPERATION AND MAINTENANCE MANUALS 019310-1
City of SLO WTP Generator Improvement - 2 Mar 2022
SECTION 019310 OPERATION AND MAINTENANCE MANUALS
PART 1 - GENERAL

1.01 GENERAL
Submit six copies of all manufacturer's operation and maintenance manuals and data pertinent to equipment supplied for the project. Prepare and organize the material in three-ring binders with divider tabs and labels. Include a table of contents. Include a CD of all catalog data in pdf format and all drawings in both pdf and CAD formats. All pdf files shall be formatted to allow word search.

1.02 SUBMITTALS
A. Submittals shall include:

1. List of equipment furnished for project with name, address, and telephone number of each vendor.

2. List of serial numbers of equipment furnished.

3. A copy of shop drawings for mechanical, electrical, and instrument equipment in final form.

4. Manufacturer's operation and maintenance instructions and parts lists.

5. Tabulation of motor nameplate horsepower, nameplate current, field-measured current, overload relay setting, and catalog number for polyphase motors.

6. List of fuses, lamps, seals, and other expendable equipment and devices. Specify size, type, and ordering description. List name, address, e-mail address, website address, fax number, and telephone number of vendor.

B. Provide manuals for each piece of equipment including individual components and subsystems of complete assemblies. Line out nonapplicable text and illustrations. The section of the manual on operation shall describe the functions and limitations of each component and its relationship to the system of which it is a part. Where several models, options, or styles are described, the manual shall identify the items actually provided.

C. Each manual shall contain the following:

1. Manufacturer's identification, including order number, model, and serial number.

2. Reviewed shop drawings and diagrams of all systems.

3. Certified equipment drawings or reviewed shop drawing data clearly marked for equipment furnished.

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City of SLO WTP Generator Improvement - 2 Mar 2022

4. Complete operating and maintenance instructions for each and every item of equipment, setting forth in detail and step-by-step the procedure for starting, stopping, operating, and maintaining the entire system as installed. Include a schedule of recommended maintenance intervals.

5. Complete parts list of replaceable parts, their part numbers, and the name and address of their nearest vendor.

6. Any special emergency operating instruction and a list of service organizations (including addresses and telephone numbers) capable of rendering emergency service to the various parts of the system.

7. Copy of manufacturer's equipment guarantees and warranties.

D. Brochures shall be loose leaf with durable plastic or fiberboard covers. Each sheet shall be reinforced to prevent tearing from continued use, and each brochure shall have the following information clearly printed on its cover:

1. Project name, name of Owner, and address.

2. Name and address of Owner's Representative.

3. Name and addresses of contractors and subcontractors and department to contact.

4. Telephone number of contractors, including night and emergency numbers.

5. Major equipment vendors' names and telephone numbers.

E. Submit complete manuals at least four weeks before the date of the instructions required by the subsections on "Manufacturer's Services" in the various specification sections.

F. Operation and maintenance manuals specified herein are in addition to any operation, maintenance, or installation instructions required by the Contractor to install, test, and start up equipment.

1.03 EQUIPMENT DATA SHEETS
A. Provide six sets of equipment data sheets, bound in three-ring binders, summarizing the equipment manufacturer's maintenance instructions and recommendations.

B. Provide a digital copy as a searchable PDF.

END OF SECTION

DRAFT - NOT FOR CONSTRUCTION
PROTECTING EXISTING UNDERGROUND UTILITIES 020120-1
City of SLO WTP Generator Improvement - 2 Mar 2022
SECTION 020120 PROTECTING EXISTING UNDERGROUND UTILITIES PART 1 - GENERAL

1.01 DESCRIPTION
This section includes materials and procedures for protecting existing underground utilities.

1.02 RELATED WORK SPECIFIED ELSEWHERE
A. Trenching, Backfilling, and Compacting: 312316.

PART 2 - MATERIALS

2.01 REPLACEMENT IN KIND
Except as indicated below or as specifically authorized by the Owner's Representative, reconstruct utilities with new material of the same size, type, and quality as that removed.

PART 3 - EXECUTION

3.01 GENERAL
A. Replace in kind street improvements, such as asphalt, concrete, curbs and gutters, fences, signs, etc., that are cut, removed, damaged, or otherwise disturbed by the construction.

B. Where utilities are parallel to or cross the construction but do not conflict with the permanent work to be constructed, follow the procedures given below. Notify the utility owner 48 hours in advance of the crossing construction and coordinate the construction schedule with the utility owner's requirements. For utility crossings not shown in the drawings, refer to the General Provisions and the instructions of the Owner's Representative for guidance.

C. Determine the true location and depth of utilities and service connections which may be affected by or affect the work. Determine the type, material, and condition of these utilities. In order to provide sufficient lead-time to resolve unforeseen conflicts, order materials and take appropriate measures to ensure that there is no delay in work.

3.02 PROCEDURES
A. Protect in Place: Protect utilities in place, unless abandoned, and maintain the utility in service, unless otherwise specified in the drawings or in the specifications.

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B. Remove and Reconstruct: Where so indicated in the drawings or as required by the Owner's Representative, remove the utility and, after passage, reconstruct it with new materials. Provide temporary service for the disconnected utility.

3.03 COMPACTION
A. Utilities Protected in Place: Backfill and compact under and around the utility so that no voids are left.

B. Utilities Reconstructed: Prior to replacement of the utility, backfill the trench and compact to an elevation 1 foot above the top of the ends of the utility. Excavate a cross trench of the proper width for the utility and lay, backfill, and compact.

C. Alternative Construction--Sand-Cement Slurry: Sand-cement slurry consisting of one sack (94 pounds) of portland cement per cubic yard of sand and sufficient moisture for workability may be substituted for other backfill materials to aid in reducing compaction difficulties with written approval from the Engineer. Submit specific methods and procedures for the review of the Owner's Representative prior to construction.

3.04 ADJACENT UTILITIES
A. The Contractor's attention is called to the following utilities:

Description
Overhead Electric - Use extreme caution when working in the vicinity.

Coordinate with Utility for power shutdown if any work is performed within 10 feet of the lines.

Above-ground Cables Associated with the 1000 kW Rental Generator Three (3) utility duct banks in the vicinity of the new generator slab 1-1/2 inch Gaseous Oxygen Line
1-1/2 inch Water Line
Various Electrical and Communications Utilities
B. The position of these utilities is within the area of construction. Protect these utilities from any disturbances and repair if they are damaged in any way.

END OF SECTION

DRAFT - NOT FOR CONSTRUCTION
FUEL OIL SYSTEM AND APPURTENANCES 231100-1
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022
SECTION 231100 FUEL OIL SYSTEM AND APPURTENANCES
PART 1 - GENERAL

1.01 SECTION INCLUDES
A. Extent of fuel system and appurtenances work is indicated by Drawings and schedules and specified herein. This section specifies the requirements for the design, manufacturer, delivery, installation of the fuel oil system and related appurtenances for the generator on this project. The work shall be complete in all aspects so that a fully functional fuel oil system is provided for the generator.

B. Types of fuel oil system equipment specified in this Section include the following:

1. Fuel Oil Piping.

2. Piping Components.

3. Supports.

4. Aboveground Fuel Storage Tank and Related Components.

5. Fuel Maintenance Equipment.

6. Leak Detection System.

C. Related Work in Other Sections:

1. Painting: Refer to Section 099000 Painting and Coating for painting of fuel oil piping system.

2. Wiring and Conduit: Refer to Division 26 sections for wiring and conduit required for operation of the fuel oil system.

1.02 SUBMITTALS
A. Product Data: Submit manufacturer’s technical product data for each type of fuel system product including specifications, capacity ratings, certified performance data with operating points clearly indicated, gauges and finishes of materials, dimensions, weights (shipping, installed, and operating), furnished specialties, and accessories.

B. Shop Drawings: Submit manufacturer’s assembly type shop drawings indicating dimensions, weight loading, required clearances, attachments, and methods of assembly of components.

C. Installation Instructions: Submit manufacturer’s installation instructions for each specific submitted product. Generic installation instructions are not acceptable.

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D. Wiring Diagrams: Submit manufacturer’s electrical requirements for power supply and control wiring. Submit manufacturer’s ladder-type wiring diagrams for interlock and control wiring. Clearly differentiate between portions of wiring that are factory-installed and portions of wiring that are field-installed.

E. Certification: Submit a copy of the U.L. label that will be affixed to the aboveground fuel storage tank indicating compliance with U.L. 2085, "Insulated Secondary Containment Aboveground Tank for Flammable Liquids."
F. Maintenance Data: Submit manufacturer’s maintenance instructions for each submitted product including troubleshooting, lubrication instructions, motor and drive replacement, and spare parts list. Include this data along with product data and shop drawings in Maintenance Manual.

G. Factory Authorized Start-Up: Submit written confirmation that the fuel oil system was started-up by a factory authorized representative.

H. Receipt of Spare Parts: Submit signed receipt for spare parts required by this Section.

Receipt shall include the name of the person receiving the spare parts, date received, and the location where the parts were delivered.

1.03 CODES AND STANDARDS
A. Governing Codes: Except at modified or supplemented herein, all materials and construction methods shall comply with applicable provisions of the following governing codes:

1. California Mechanical Code (CMC), 2019 edition.

2. California Fire Code (CFC), 2019 edition.

B. Governing Standards: Except as modified or supplemented herein, all materials and construction methods shall comply with the applicable provisions of the following governing standards:

1. NFPA 30, National Fire Protection Association, Flammable and Combustible Liquids Code.

2. NFPA 31, National Fire Protection Association, Standard for Installation of Oil Burning Equipment.

3. U.L. 142, Underwriters Laboratories, Inc., Steel Aboveground Tanks for Flammable and Combustible Liquids.

4. U.L. 2085, Underwriters Laboratories 2 Hour Fire Rating's Standard for Insulated

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CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022

1.04 QUALITY ASSURANCE
A. Manufacturer’s Qualifications: Firms regularly engaged in manufacture of products specified in this Section of the types and sizes required, whose products have been in satisfactory use in similar service for not less than five years'.

B. Installer’s Qualifications: Installer of shall have minimum five years' experience with the installation of products and systems similar to those specified in this Section.

1.05 DELIVERY STORAGE AND HANDLING
A. Deliver products to the job site in factory containers and on shipping skids. Pipe and other materials to be protected from damage due to impact and point loading. Pipe shall be supported during handling to prevent damage due to flexural strains. Maintain caps and similar closures for piping. Do not allow dirt, debris, or other extraneous materials into the pipe and fittings and other parts of the fuel oil system.

1.06 WARRANTY
A. Provide a one-year warranty for the fuel oil system and appurtenances.

1.07 EXTRA MATERIALS
A. Filters: Provide one set of replacement filters for the fuel maintenance equipment.

PART 2 - MATERIALS

2.01 FUEL OIL PIPING
A. Aboveground Piping for Fuel Oil Supply, Fuel Oil Return, and Fuel Oil Vent:

1. Pipe: Schedule 40 seamless black steel pipe conforming to ASTM A53-90a, Grade B.

2. Fittings 2" and smaller shall be Class 300 malleable iron threaded conforming to ASME B16.3.

3. Joint Compound: Compatible with diesel fuel.

2.02 PIPING COMPONENTS
A. Antisiphon Solenoid Valves: Provide valve with hydrostatic pressure adjusting design with weatherproof cap, 24V DC operation, continuous duty Class H coil, and manual override feature to permit opening the valve without power source. Body aluminum or ductile iron with internal pressure relief. Manufacturer: Morrison Brothers Co., Franklin Fueling, or approved equal.

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CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022
B. Antisiphon Valves - Inline Type: Provide valves with stainless steel construction and suitable for operation in horizontal for vertical position. Maximum working pressure 200 psig. Factory set at required water column range. Manufacturer: Morrison Brothers Co., Franklin Fueling, or approved equal.

C. Expansion Relief Valve - Angle Style: Provide expansion relief valve of stainless steel construction and threaded connections to relieve pressure in piping due to thermal expansion. Manufacturer: Morrison Brothers Co., Franklin Fueling, or approved equal.

D. Priming Tees: Provide priming tees of stainless steel construction, threaded connections, and threaded plug. Manufacturer: Morrison Brothers Co., Franklin Fueling, or approved equal.

E. Ball Valves: Stainless steel ball valve with full port, locking handle, blow-out proof stem, 1000 WOG, threaded ends, locking handle, and MSS SP110 compliant. Manufacturer:

Milwaukee Valve BA260 or equivalent from Nibco or Stockham.

F. Padlocks: Provide padlocks for lockable handle valves in fuel oil supply and return piping serving generator. Padlocks shall be keyed alike and shall match Owner's lock system.

Provide four keys for padlocks. Coordinate padlock and key requirements with Owner.

G. Flexible Pipe Connectors: Provide stainless steel braided metal hose flexible pipe connectors. Connectors shall have stainless steel threaded ends compatible with the piping system. Length of hose shall be sufficient to allow for expected movement. Connectors shall be UL listed and labeled for fuel oil use. Manufacturer: Twin City Hose, Inc., Metraflex, or approved equal.

H. Unions for Steel Pipe: Malleable iron class 150 for low pressure service and class 250 for medium and high pressure service, hexagonal stock, ball and socket joints, metal to metal bronze seating surfaces, and female threaded ends.

I. Strainers: Wye-pattern with size matching connecting piping. Screens shall be Type 304 stainless steel, with 20x20 mesh for sizes 2" and smaller. Provide strainers with cast iron body, conforming to ASTM A 48 Class 30, and 250 psi non-shock working pressure.

Strainers size 2" and smaller shall be threaded. Strainer blowdown port shall be drilled, tapped, and plugged. Provide nipple, shutoff valve, hose thread connector, and cap in each blowdown port, minimum size 3/4". Manufacturer: Morrison Brothers Co., Mueller Specialty or approved equal.

J. Foot Valve: Single poppet design, brass body and poppet, metal to metal seat, 20 mesh stainless steel screen. Manufacturer: Morrison Brothers Co., Franklin Fueling, or approved equal.

K. Hand Pump: Provide U.L. Listed hand pump with vacuum breaker, suitable for diesel, and sized to prime the fuel oil supply piping for the generator. Manufacturer: Fill-Rite or approved equal.

DRAFT - NOT FOR CONSTRUCTION
FUEL OIL SYSTEM AND APPURTENANCES 231100-5
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022
L. Pressure Gauges: General use type with 1% accuracy, ANSI B40.1 Grade A, phosphor bronze bourdon type, drawn steel or brass case, glass lens, 4-1/2" diameter, and brass connector. Range 30" Hg to 30 psi. Provide 1/4” brass snubber and gauge cock for each gauge. Manufacturer: Trerice (H.O.) Co., Weiss Instruments, Inc., or approved equal.

2.03 SUPPORTS
A. Pipe Clamps: Provide two bolt pipe clamps for attaching fuel piping. Clamps shall be sized for the piping. Manufacturer: B-line, Powerstrut, Tolco, or approved equal. Piping shall have support spacing in accordance with the California Mechanical Code.

B. Threaded Rod: Provide galvanized steel threaded rod in sizes indicated.

C. Metal Framing Channel: Provide 12-gauge steel, metal framing channel with hot-dipped galvanized finish for exterior installations. Paint cut ends of channel with cold galvanizing paint for exterior installations. Provide fittings with hot-dipped galvanized finish for exterior installations. Fasteners shall conform to ASTM A307. All fasteners shall be grade-2 or higher and shall be tightened to manufacturer's recommended values.

Minimum torque for 3/8” diameter bolts is 19 ft-lbs. Minimum torque for 1/2” diameter bolts is 50 ft-lbs. For exterior installations provide fasteners with a hot-dipped galvanized finish or provide ASTM A240 Type 304 stainless steel fasteners. Manufacturer: Cooper B-Line, Power-Strut, or approved equal.

D. Rubber Support Base: Provide rubber support base with 12-gauge galvanized metal framing channel on top. Rubber shall be UV resistant and have load bearing capacity suitable for piping supported. Height, width, and length of base shall be as required to support piping. Manufacturer: B-Line or approved equal.

E. Expansion Anchors: Concrete expansion type stainless steel anchors shall be Hilti KWIK Bolt TZ Wedge anchors. Masonry expansion type anchors shall be Hilti KWIK Bolt TZ Wedge for grout filled masonry. Allowable shear and tension values for each anchor shall comply with the latest ICC-ES Evaluation Report for the specific anchor. Provide anchors with diameter and minimum embedment as required by the loads and as indicated on the drawings. Expansion anchors shall be tested as required Code.

2.04 IDENTIFICATION
A. General: Comply with ANSI/ASME A13.1 for lettering size, length of color field, colors, and viewing angles of identification devices. Comply with ANSI Z535.1 for color codes used on accident prevention signs, labels, and tags.

B. Pipe Labels: Provide manufacturer's standard pre-printed, permanent adhesive, colorcoded, pressure sensitive vinyl pipe markers, complying with ANSI A13.1.

C. Valve Tags: Provide 19 gauge polished brass valve tags with stamp-engraved piping system abbreviation in 1/4" high letters and sequenced valve numbers 1/2" high and with a hole for fastener. Provide 1-1/2" minimum diameter tags, except as otherwise indicated.

Fill tag engraving with black enamel. Provide manufacturer's standard solid brass chain

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CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022
(wire link or beaded type) or solid brass S-hooks of the sizes required for proper attachment of tags to valves and manufactured specifically for that purpose.

D. Engraved Plastic-Laminate Signs: Provide manufacturer's standard, minimum 1/16" thick, engraving stock, multilayer, plastic laminate, engraved with engraver's standard letter style, black with white core (letter color) unless otherwise indicated. Labels shall be punched with minimum two holes for mechanical fastening. Label text shall be as indicated. Label size shall be as indicated or required for text. Fasteners shall be selftapping stainless steel screws or stainless steel rivets.

E. Lettering and Graphics: Coordinate names, abbreviations, and other designations used in mechanical identification work, with corresponding designations shown on the drawings or specified. Provide numbers, lettering, and wording as indicated or, if not otherwise indicated, as recommended by manufacturers or as required for proper identification and operation/maintenance of mechanical systems and equipment.

2.05 ABOVEGROUND FUEL STORAGE TANK AND RELATED COMPONENTS A. General: Tank shall be as described in the Drawings, schedules, and specified herein.

Tank shall be double-wall, fire protected, aboveground fuel storage tank. Construction shall be inner and outer steel tank with lightweight thermal insulation in the interstitial space. Tank shall be compatible with a wide range of fuels and chemicals include diesel and biodiesel. Tank interior shall be clean, bare, steel. Tank exterior shall be coating with white polyurethane.

B. Materials: Only new material shall be used in the manufacturing process, and the manufacturer shall ensure that the material used meets all appropriate specifications and quality assurance requirements.

C. Dimensional Requirements: Tank shall conform to the following:

1. Refer to drawings.

2. Minimum annular space insulation thickness material to be 3". Only UL-2085 listed insulation material shall be used.

D. Loading Conditions: Tank shall meet the following design criteria.

1. Internal Load: Cylindrical tanks shall be able to withstand an air pressure test of 3 to 5 psi.

2. Tank shall be designed to support accessory equipment such as ladders, pumps, floating suction, etc. when installed according to manufacturer's instructions and limitations. See drawings for accessories.

3. Tank shall be provided with suitably designed and located lifting lugs which have a 2:1 safety factor.

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E. Product Storage Requirements:

1. Tank shall be capable of storing liquids with a specific gravity up to 1.0.

2. Tank shall be designed for operation at atmospheric pressure only. Both inner and outer tanks shall have openings of sufficient size to meet normal and emergency venting requirements stated in U.L. 142, CFC and NFPA.

3. Tank shall be capable of storing gasoline, gasohol, jet fuel, avgas, diesel fuel, methanol, or fuel oil at ambient temperatures.

F. Certification Plate: Underwriters Laboratories label "Insulated Secondary Containment Aboveground Tank for Flammable Liquids." shall be affixed to each tank.

G. Construction: The tank shall include the following:

1. Fittings: Threaded/NPT. All threaded fittings shall be of a material of construction consistent with the requirements of the Underwriters Laboratories. All fittings shall be protected using threaded plugs or suitable closure caps. Refer to drawings for location and size.

2. Steel Tank Supports: Design of the steel supports shall be per approved UL listing and be able to support the weight of the tank filled to capacity. Tank supports shall conform to the seismic requirements for the State of California.

3. Pipe Supports: Tank shall be fabricated with tank mounted pipe supports consisting of bolted metal framing channel welded to the top of the tank. The framing channel shall be compatible with standard channel nuts and fittings.

H. Testing: The primary and secondary tanks shall successfully complete an air pressure teste prior to leaving the factory. While maintaining pressure of 3-5 psig on the primary tank, the annular space bounded by the primary and secondary containment tank shall be pressurized to 1 1/2 to 3 psig. The secondary tank shall then be checked for tightness.

I. Tank Warranty: Provide a 30 year warranty for tank.

J. Tank Manufacturer: Modern Welding of California or approved equal.

K. Related Components: Provide the tank with the following related components:

1. Grade Level Fill Box: Provide 18-gauge steel cabinet with mounting brackets, hinged door, locking tab, and power coat epoxy finish inside and out. Manufacturer:

Baker Industries Northwest, Inc. or approved equal.

2. Overfill Protection Valve: Provide overfill prevention valve constructed in accordance with U. L. C. Listing. Valve shall be installed on tank fill connection and include a dip tube sized to discharge the fuel into the tank and avoid aeration.

Manufacturer: Morrison Bros. Co. or approved equal.

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3. Hand Pump: Provide U.L. Listed hand pump with vacuum breaker, suitable for diesel, and sized to remove spilled fuel from grade level fill box. Manufacturer:

Fill-Rite or approved equal.

4. Ball Valve: Provide brass, full port, ball valve with chrome plated ball, blowout proof stem, Teflon seals, dacronized carbon steel lockable handle, and threaded connections. Valve shall be U.L. Listed for flammable liquids. Manufacturer:

Morrison Bros. Co. or approved equal.

5. Check Valve - Spring: Provide inline type, spring loaded check valve, bronze and stainless steel construction, and disc compatible with diesel fuel. Manufacturer:

Morrison Bros. Co. or approved equal.

6. Fill Adapter and Dust Cap: Provide a stainless steel body, dry disconnect type adapter, with spring loaded poppet. Provide a dust cap that is compatible with the adapter. Manufacturer: Morrison Bros. Co. or approved equal.

7. Clock Gauge: Provide clock gauge for measuring fuel level in the tank. Gauge shall readout in feet and inches and be accurate to 1/8". Dial shall be vapor tight and fog free with minimum diameter of 6" and shall rotate 360-degrees for placement in desired orientation Gauge body is aluminum, float is stainless steel, and cable is stainless steel. Float shall be drop tube style to minimize float entanglement.

Provide aluminum drop tube for float. Manufacturer: Morrison Bros. Co. or approved equal.

8. Normal Vent: Provide die-cast aluminum, atmospheric updraft vent cap, sized for normal venting. Manufacturer: Morrison Bros. Co. or approved equal.

9. Emergency Vents: Provide U. L Listed emergency vents, sized to accommodate required tank venting. Manufacturer: Morrison Bros. Co. or approved equal.

10. Bushings: Provide double-tapped bushings for tank fittings, as required. Bushings shall be fabricated from zinc plated cast iron with male external threads and female internal threads. Sizes of bushing shall be compatible with tank fittings and devices installed.

11. Threaded Plugs: Provide zinc plated cast iron plugs with male threads. Install plugs in unused tank openings.

2.06 FUEL MAINTENANCE EQUIPMENT
A. General: The fuel maintenance equipment shall be designed to optimize and maintain diesel fuel indefinitely. It shall remove particulate, separate water, and condition the fuel.

The equipment shall include 2 micron primary particulate filter, secondary water separation filter to 5 ppm. In-line fuel conditioner, gear pump, stainless steel piping, threaded inlet and outlet connections, cabinet heater, and NEMA 3R steel enclosure with zinc primer and powder coat finish. Controller shall conform to UL 508A and provide automatic alerts with appropriate shutdowns when service is required and when leak

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detection, high filter vacuum, high filter pressure, and low fuel flow alert. Controller will also alarm when water is detected, provide a maintenance alert log file, runtime totalizer, alarm history, and on-screen help. Equipment shall provide remote alarm signals for leak detection and general alarm. Equipment shall include a foot valve for field installation in the fuel tank.

B. Manufacturer: Fuel Technologies International AXI International, RCI Technologies, Inc., or approved equal.:

2.07 LEAK DETECTION SYSTEM
A. The leak detection panel shall be complete with all required sensors to accomplish leak detection and monitoring indicated on the drawings. Panel shall have 2-input discriminating/non-discriminating secondary containment leak detection and alarm functions. Panel shall have a NEMA 4X 304 Stainless Steel locking enclosure with EEPROM 50 year data retention without requiring batteries, log reports, real-time clock, lithium battery backed up RAM for 5-10 year data retention, 85 dB local alarm, summary visual alarms, ultra-high intensity LED display for normal (green), product (red), water (yellow), and pre-printed and user printable-writable labels. Communications capabilities shall include RS-232, RJ-13 jack, RS-485 plug-in terminal block, internal secured modem, and Ethernet connectivity. Panel shall include two output relays as standard and include four additional Form C contacts for remote alarm signaling. Panel shall be configured to function with and discretely monitor sensors for fuel tank secondary containment, fuel overfill, fuel tank low fuel level, and alarms from fuel maintenance equipment. Panel shall include a printer.

B. Leak Detection Sensor: Provide leak detection sensor for fuel tank interstitial space.

C. Level Switches: Provide switches with stainless steel stem, stainless steel float, wiring housing, test lever, and mild steel bushing. Stem shall be as required.

D. Manufacturer: Pneumercator Company, Inc. or approved equal.

PART 3 - EXECUTION

3.01 EXAMINATION
A. Examine area where fuel oil system and appurtenances will be installed. Correct defective work and unacceptable conditions prior to starting installation.

3.02 INSTALLATION
A. General: Install the fuel oil system and appurtenances in accordance with manufacturer's written installation instructions and in accordance with Code requirements and recognized industry practices to insure that the products serve the intended function.

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B. Install work uniform, level, and plumb in relation to lines of building. Do not install any diagonal or otherwise irregular work unless so indicated on Drawings or approved by the Owner.

C. Identification: Install mechanical identification in accordance with this Section.

D. Supports and Anchors: Install supports and anchors in accordance with this Section.

Locate spacing for supports and anchors in accordance with the referenced codes and manufacturers' installation instructions.

E. Install pipe, tube, fittings, fixtures, and equipment in accordance with recognized industry practices, which will achieve permanently leakproof systems, capable of performing each indicated service without failure. Install each run with minimum joints and couplings. Align piping accurately at connections, within 1/16" misalignment tolerance.

Use fittings for all changes in direction and all branch connections F. Install piping at slopes required by code and as required for operation of the piping system.

G. Provide unions at connections to each piece of equipment, at components that require removal for maintenance, and elsewhere as indicated.

H. Threaded joints shall be made with pipe joint compound. Comply with ANSI/ASME B1.20.1 for piping threading.

I. Provide flexible connectors at connections to equipment.

J. Clean exterior of piping systems and prepare for application of specified coatings. Flush piping for fuel oil piping with compressed air. Clean strainers after flushing K. Inspect each run of each system for completion of joints, supports, and accessory items.

Inspect pressure piping in accordance with procedures of ANSI B31.9.

L. Test fuel oil and vent systems in accordance with the NFPA 31. Test duration shall be a minimum of two hours and shall be sufficient to test and observe each joint. Repair leaks in piping system using specified materials. Stop leak and other temporary methods shall not be used. Retest the system until the test is passed.

M. During installation, provide caps covering all open ends of pipe until final connections are made to equipment and fixtures. Caps shall be tight fitting plastic and installed to keep the interior of the piping system free from contamination.

3.03 SUPPORTS INSTALLATION
A. Supports for piping shall comply with the California Mechanical Code and other applicable codes. Support piping at each change in direction, at the bottom of risers, at drops, at connection to fixtures or equipment, and wherever necessary to maintain alignment and to prevent sagging, bending, or vibrating. Dielectrically isolate piping from supports fabricated from dissimilar metals.

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CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022
B. Support directly from the structure. Provide anchors as required.

3.04 IDENTIFICATION INSTALLATION
A. Install labels upon completion of installation of piping, valves, and equipment. Label aboveground piping with plastic pipe labels at 20-foot intervals along runs and at each valve. Pipe label shall indicate fluid carried in pipe and direction of flow. Label valves with brass valve tags fastened to the valve with brass chain. Valve tag shall indicate valve number and fluid carried in pipe. Record valve numbers on project record drawings.

Label each piece of equipment installed as part of this work. Equipment label shall be engraved plastic tag with 1/4-inch-high lettering, fastened to the equipment with stainless steel screws. Label text shall match drawing designation for equipment or shall have designation as directed by the Owner.

3.05 ABOVEGROUND FUEL STORAGE TANK AND RELATED COMPONENTS

INSTALLATION
A. Tank shall be installed in strict accordance with the most recent installation instructions provided by the tank manufacturer, CFC, NFPA, local ordinances, recognized engineering procedure, and applicable codes.

3.06 FUEL MAINTENANCE SYSTEM INSTALLATION
A. Follow manufacturer's installation instructions. Install foot valve in suction piping to maintain prime. Install piping between equipment and fuel storage tank. Support equipment from structure. Prime all piping and test and commission the equipment.

Verify the function of all alarms and the reporting of the remote alarms.

3.07 LEAK DETECTION PANEL INSTALLATION
A. Follow manufacturer's installation instructions. Install sensors in piping and fuel storage tank in preparation for connection of wiring by others. Provide all required fittings, supports, and connections to install sensors including junction boxes, grommets, terminal blocks, and supports. Support panel from structure. Program panel to provide required functions. Verify the function of all sensors, alarms, and alarm reporting.

3.08 FIELD QUALITY CONTROL
A. General: Upon completion of installation of fuel oil system and appurtenances, and after equipment has been energized, test equipment to demonstrate compliance with this Section. Where possible, field correct malfunctioning equipment, and then retest to demonstrate compliance.

3.09 ADJUSTING AND CLEANING
A. Adjusting: Start-up, test, and adjust equipment in presence of manufacturer’s authorized representative. Submit written confirmation of start-up, testing, and adjusting.

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FUEL OIL SYSTEM AND APPURTENANCES 231100-12
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022
B. Cleaning: Clean factory-finished surfaces. Repair any marred or scratched with manufacturer’s touch-up paint.

3.10 COMMISSIONING
A. Prime the fuel system and confirm operation of all components, including alarms.

3.11 OWNER TRAINING
A. General: Provide an Operation & Maintenance Manual describing all operating and routine maintenance service procedures to be used with the control system. Instruct the Owner in these procedures during the startup and test period. The duration of the instruction period shall be no less than 8 hours, during normal working hours.

3.12 SPARE PARTS
A. Deliver spare filters for the fuel maintenance equipment to the Owner with signed receipt.

END OF SECTION

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BASIC ELECTRICAL REQUIREMENTS 260101-1
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022
SECTION 260101 BASIC ELECTRICAL REQUIREMENTS
PART 1 - GENERAL

1.01 SCOPE
A. The Contractor shall furnish, install, connect, make operable and test all luminaires, electrical equipment and other systems with electrical connections shown on the Drawings or called for in the Specifications or in Change Orders. In connection therewith, the Contractor shall also furnish and install all necessary devices, switches, circuit breakers, hardware and systems required to make said equipment properly and safely operable including, but not limited to, mounting hardware, framing, and electrical circuits.

1.02 SECTION INCLUDES
A. Temporary electrical services and connections.

B. All luminaires, mounting provisions, backing, accessories, lamps, switches, receptacles, faceplates, photoelectric controls, and all necessary appurtenances for a complete lighting and receptacle layout.

C. Grounding of equipment, services, and neutrals as indicated and/or required for normal and standby generator systems as required and as indicated on Drawings.

D. Electrical work and equipment for connection of equipment as specified herein and/or shown on Drawings.

E. Electrical rough-in and connections of equipment furnished under other Divisions of the work or as required.

F. All cutting, excavation, backfill, conduit encasement, and restoration of disturbed surfaces required in conjunction with the electrical work.

G. Prime painting of electrical surfaces requiring finish painting.

H. Miscellaneous systems and equipment as hereinafter specified, as shown on Drawings, or as required.

I. Submittals, completion data, tests, identifications, record drawings, maintenance and operating instructions, and warranties.

J. The word "provide" means: "To furnish, install, and electrically connect under this Division of the work."

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BASIC ELECTRICAL REQUIREMENTS 260101-2
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022

1.03 ROUGH-IN
A. Verify all dimensions by field measurements. The Drawings serve as working drawings only, indicating diagrammatically the general layout of the systems and their various components and equipment.

B. Refer to equipment specifications in other Divisions for rough-in requirements.

1.04 ELECTRICAL INSTALLATIONS
A. Coordinate electrical equipment and materials installation with all other components.

B. Verify all dimensions by field measurements. The Drawings serve as working drawings only, indicating diagrammatically the general layout of the systems and their various components and equipment.

C. Coordinate the installation of required supporting devices and sleeves to be set in pouredin-place concrete and other structural components, as they are constructed.

D. Sequence, coordinate, and integrate installations of electrical materials and equipment for efficient flow of the Work.

E. Install electrical equipment to facilitate maintenance and repair or replacement of equipment components. As much as practical, connect equipment for ease of disconnecting, with minimum of interference with other installations.

F. American National Standards Compliance: Comply with National Electrical Installation Standards NECA 1-2010 'Standard Practices for Good Workmanship in Electrical Contracting' as published by the National Electrical Contractors Association.

1.05 SUBMITTALS
A. Provide minimum one electronic copy in text searchable PDF compatible format for each submittal. Scanned images are not acceptable.

B. Refer to the Conditions of the Contract (General Provisions) and Division 1 for submittal definitions, requirements, and procedures.

C. Additional copies may be required by individual sections of these Specifications. Refer to subsequent sections for specific submittal requirements.

D. Submittals for electrical equipment shall include manufacturer’s installation instructions.

1.06 SUBSTITUTIONS
A. Refer to the Conditions of the Contract (General Provisions) and Division 1 for substitution requirements.

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BASIC ELECTRICAL REQUIREMENTS 260101-3
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022

1.07 RECORD DOCUMENTS
A. Refer to the Division 1 for requirements. The following paragraphs supplement the requirements of Division 1.

B. Obtain from the Owner's Representative at cost a complete set of applicable bond prints.

On these systematically and accurately keep an up-to-date and legible dimensional record of all work installed differently from the location or manner indicated by the Drawings, as well as exact conduit routing, locations of stub-outs, and hidden or underground features.

Locate dimensionally to permanent points of reference. Identify by manufacturer and catalog number, lamp type, and quantity utilized any type luminaires that are different from those shown on luminaire schedule. Have these Drawings readily available for reference and review. When job status permits, submit to the Owner and then amend and/or correct and resubmit if requested.

C. When the above information is complete and acceptable to the Owner, transfer it neatly and accurately to reproducible mylars purchased at cost from the Owner for this purpose.

Upon completion, deliver reproducibles to the Owner for final review.

D. The record drawing information procedure outlined under Paragraph B above shall be coordinated with and reviewed by the Owner's full-time Inspector during the course of construction and shall have his signed approval before submission to the Owner.

E. Mark Specifications to indicate any approved substitutions, Change Orders, actual equipment, and materials used. This data shall be included with submittals.

1.08 OPERATIONS AND MAINTENANCE DATA
A. Refer to the Division 1 Operation and Maintenance Data for procedures and requirements for preparation and submittal of maintenance manuals. Refer to the Division 1 Spare Parts and Maintenance Materials for requirements pertaining to spare parts.

B. Operating Instructions: In addition to the information required by Division 1 for Maintenance Data, include written instructions by manufacturer, fabricator, or installer of equipment or systems, detailing procedures to be followed by Owner in operation, control, shut-down, and testing of each operating item of the equipment and each electrical system.

C. Maintenance Manuals: In addition to the information required by Division 1 for Maintenance Data, compile information provided for Owner's maintenance of each system of operating equipment, including wiring and control wiring diagrams, lubrication, emergency control, parts replacement, spare parts inventory recommendation, listing of tools and accessories needed for maintenance, and similar instructions.

1.09 MANUFACTURER'S DIRECTIONS
A. Follow manufacturer's directions and recommendations in all cases where the manufacturers of articles used for this work furnish directions covering points not shown or specified.

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CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022
B. Delivery, storage, and handling: Deliver equipment in containers, sections or lengths that can be moved past obstructions in delivery path. Store equipment indoors in clean dry space with uniform temperature to prevent condensation. Protect from exposure to dirt, fumes, water, corrosive substances, and physical damage.

1.10 MARKING
A. In general, and except as modified by details or elsewhere herein, before requesting the Engineer to make final observation, identify all electrical distribution equipment, circuit breakers, and other equipment by means of neat, approved labels, decals, brass tags, engraved plastic laminate or metal strips, neatly painted signs or by other approved means.

Provide manufacturer's standard vinyl-cloth self-adhesive cable/conductor markers of wrap-around type, either pre-numbered plastic coated type or write-on type with clear plastic self-adhesive cover flap, numbered to show circuit identification. Where nameplates are indicated, provide engraving stock plastic laminate, complying with FS LP-387, in sizes and thicknesses indicated, engraved with engraver's standard letter style of sizes and wording indicated, black face and white core plies (letter color). Provide thickness of 1/16", except as otherwise indicated. Punch plastic laminate for mechanical fastening and provide stainless steel rivets or self-tapping stainless steel screws.

1.11 MOUNTING
A. Provide all materials and accessories necessary to properly mount and secure equipment furnished and/or installed under the electrical work in compliance with all applicable codes and authorities.

B. Seismic restraints and anchorage for equipment shall comply with the requirements of 2019 edition of Title 24, Part 2, California Building Code, Chapter 16, Section 1613.

1.12 TESTS
A. Perform all electrical tests as required or as directed. Provide all materials, labor, and equipment necessary for performance of these tests and at completion of the work perform a complete "in-service" operation of the entire electrical lighting, power, signal, communications, and alarm systems to show compliance with the Drawings and Specifications. Replace any work showing faults under tests without additional cost to the Owner.

B. Where NETA electrical tests are indicated, testing shall be performed in accordance with NETA ATS-2009 (International Electrical Testing Association) - Acceptance Testing Specifications for Electrical Power Distribution Equipment and Systems.

1.13 CLEANING
A. During construction and upon completion of the work, remove from the site all debris and excess materials, tools, scaffolding, etc., resulting from this work. Clean all equipment, including luminaires, distribution and control equipment, and enclosures, free from dust, dirt, grease, paint, etc.

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CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022

1.14 TEMPORARY ELECTRICAL SERVICES
A. Provide temporary light and power as required for construction purposes. Coordinate all requirements with the Owner.

1.15 OWNER FURNISHED EQUIPMENT
A. Install and connect owner-furnished motor control board and sump termination box. Refer to Appendices for equipment submittals. The equipment shall be installed and tested per the manufacturers published installation, operation, and maintenance instructions.

Coordinate device settings with the Electrical System Study report.

PART 2 - MATERIALS [NOT USED]
PART 3 - EXECUTION [NOT USED]

END OF SECTION

DRAFT - NOT FOR CONSTRUCTION
MEDIUM-VOLTAGE CABLES AND ACCESSORIES 260513-1
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022
SECTION 260513 MEDIUM-VOLTAGE CABLES AND ACCESSORIES
PART 1 - GENERAL

1.01 SECTION INCLUDES
A. Extent of medium voltage cables and accessories is indicated by Drawings and as specified herein.

B. Types of medium voltage cables in this section include 15kV conductors. Also included are accessories for connections of these systems.

1.02 QUALITY ASSURANCE
A. Manufacturers: Firms regularly engaged in manufacture of medium voltage cable and accessories of types and ratings required, whose products have been in satisfactory use in similar service for not less than five years.

B. California Electrical Code (CEC) Compliance: Comply with CEC as applicable to construction and installation of medium voltage cable and accessories.

C. Nationally Recognized Testing Laboratory (NRTL) Compliance and Labeling: Comply with safety standards pertaining to electrical wires and cables and provide products and components that have been listed and labeled by an NRTL such as UL or equal. Comply with UL Standard 1072 for Medium Voltage Solid Dielectric Cable (MV90).

D. NEMA/ICEA Compliance: Comply with NEMA/Insulated Cable Engineers Association standards pertaining to materials, construction, and testing of wire, cable, and accessories including ICEA Pub. No. S-68-516 (NEMA Pub. WC8) "Ethylene Propylene Rubber Insulated Cable and Wire".

E. ANSI/ASTM: Comply with ANSI/ASTM standards pertaining to construction of wire and cable.

F. IEEE Compliance: Comply with IEEE standards pertaining to wire and cable.

G. AEIC Compliance: Comply with AEIC No. 6, latest issue.

1.03 SUBMITTALS
A. Product Data: Submit manufacturer's data on medium voltage cables and accessories.

Identify accessory components by manufacturer and catalog number.

B. Installation Instructions: Submit installation instructions for each termination and splicing accessory.

C. Splicer Certification: Submit qualifications of medium voltage splicers to be used on the project. A certificate, certifying the splicers/terminators specific applicable experience of

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MEDIUM-VOLTAGE CABLES AND ACCESSORIES 260513-2
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022
making medium voltage splices and terminations during the immediate past five years, shall be required. Submit experience of proposed cable splicers.

D. Factory Test Reports: Submit factory certified test reports for the proposed cable. The test shall consist of high-voltage AC, high voltage DC tests and insulation resistance tests according to ICEA S-68-516 and UL standard 1072 or latest editions.

E. Shop drawings: Submit cabling pulling diagrams for cable installation in the installed raceway system. Diagrams shall include maximum allowable tension and sidewall bearing pressure for each cable pull. Include written verification from the cable manufacturers that the method of installation is acceptable for the proposed cables.

F. Post Installation Test Report: Submit certified reports for post installation high-pot testing.

PART 2 - MATERIALS

2.01 ACCEPTABLE MANUFACTURERS
A. Manufacturer: Subject to compliance with requirements, provide products as manufactured by Cooper Power Systems, Cutler-Hammer, General Electric Company, or equal.

2.02 GENERAL
A. Except as otherwise indicated, provide medium voltage cable of manufacturer's standard materials as indicated by published product information, designed and constructed as recommended by manufacturer, and as required for the installation.

B. Provide new cable in unbroken reels or containers of recent manufacture bearing NRTL label, manufacturer's trademark, and type and size of wire or cable.

C. Provide electrical accessories as specified herein and as recommended by connector and terminal manufacturer for intended applications.

2.03 15,000 VOLT MEDIUM VOLTAGE CABLES
A. Cables shall conform to the specifications of the Underwriters Laboratories, Inc., ICEA, and AEIC standards. Cables shall be capable of operating continuously in wet and dry locations at a conductor temperature not in excess of 90 degree C for normal operation, 130 degree C for emergency overload conditions, and 250 degree C for short circuit conditions. Cables shall be rated at 15,000V, 133% insulation level.

B. The conductor shall be Class B uncoated soft or annealed copper in accordance with ASTM Specs B3 and B8 and ICEA Part 2, Section 2.1 and 2.5. The conductor shall be shielded with an extruded semi-conducting thermosetting polymeric layer over the conductor, applied in tandem with and firmly bonded to the insulation.

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CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022
C. The insulation shall be EPR (ethylene propylene rubber) meeting the requirements of the referenced standards. The average thickness shall be 0.115". The insulation shall be covered with an extruded layer of semi-conducting thermosetting material that shall be identified as being semi-conducting. Over this layer shall be a 0.005" copper tape helically applied with 12-1/2% to 25% overlap.

D. The cable shall be provided with a jacket of black sunlight resistant PVC conforming to the requirements specified for polyvinyl chloride jackets in ICEA. Cable shall be identified by surface printing on the jacket.

E. All medium voltage cables shall be factory tested prior to shipping. Physical and electrical tests shall be conducted in accordance with the requirements of ICEA Pub. No. S-68-516 (NEMA WC8), and Underwriters Laboratories Standard 1072 for Medium Voltage Solid Dielectric Cable (MV90), and AEIC No. 6. Submit factory specification and certified test reports.

2.04 ACCESSORIES
A. Provide shielded medium voltage cable terminations or splices capable of continuous operation at the cable rated voltage at a temperature of 90 degree C with an emergency temperature overload rating of 130 degree C. Each termination or splice shall be supplied in kit form containing all of the necessary materials required to make three splices. The manufacturer shall also include cable preparation kits containing solvent, cloth rags and abrasive.

B. Terminations: Terminations shall meet the requirements of IEEE Standard 48 and shall be suitable for installation on tape-shielded or braid-shielded cables of the sizes and types used on this project. Terminations shall be heat or cold shrink. Grounding connections shall be made with the use of a solderless constant force roll spring.

C. Non-Loadbreak Elbow Terminations: Provide non-loadbreak elbow type for terminations at medium voltage transformers. Elbows shall be rated 15KV, 200600 amp. Elbow connectors shall be suitable for installation on tape-shielded or braid-shielded cables of the sizes and types used on this project. Elbows shall be provided with a capacitively coupled test point. Provide insert for bushing well and shield adapter as required.

Grounding connections shall be made with the use of a solderless constant force roll spring. Provide cable adapter as required for use on 15kV cables. BIL: 95KV. Connectors shall be hot-stick operable.

D. In-line Splices: In line splices shall be heat or cold shrink with two tubes for insulating and jacketing. Splices shall be rated for direct burial and shall be suitable for continuous operation under water.

E. Separable Connectors: Separable splice connectors shall use watertight fully submersible 15kV 200 amp non-loadbreak elbow connectors with loadbreak junctions in underground manholes or pullboxes where noted on the Drawings. The splices shall be fully shielded and meet the requirements of ANSI/IEEE Standard 386. A capacitive test joint shall be supplied on the insulating plug to provide a means of testing the circuit without disturbing

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MEDIUM-VOLTAGE CABLES AND ACCESSORIES 260513-4
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022
the bolted connection. Splices shall be provided with properly sized cable adapters for use on 5kV conductors and shall include all necessary components to complete the splice as recommended by the manufacturer of the connectors. Also provide tape shield adapters and drain shield adapters to maintain the integrity of the grounding system. The splices and adapters shall be molded EPDM material.

F. Loadbreak Junction Point: Provide a 3 point 15kV load break junction with 200 amp deepwell bushing interface and a single parking stand. Mounting brackets shall be stainless steel. Junctions shall be fully shielded, deadfront, and submersible.

G. Insulated Parking Bushing: Provide 15kV class fully shielded and submersible separable insulated parking bushing suitable for use with specified elbow connectors. Provide all mounting hardware necessary for mounting to parking stands. Unit shall include a cast aluminum bracket, molded EPDM interface, and a stainless eyebolt for hot-stick operation.

H. Grounding Device: Provide 15kV class grounding device for grounding of metallic shield cable. Device shall be fully shielded and submersible. Housing shall be molded EPDM and shall use a corrugated contact with stainless steel clamps.

I. Insulated Cap with Ground: Provide fully shielded and submersible separable insulated cap with an integral ground lead as part of the assembly. Installation shall not require the use of special tools or taping of any part of the product.

J. Cable Sealing: Provide jacketed cable sealing for resealing elbows and other terminating accessories.

PART 3 - EXECUTION

3.01 GENERAL
A. Install medium voltage cables and accessories as indicated in accordance with manufacturer's written instructions, applicable requirements of CEC and NECA's "Standard of Installation", and recognized industry practices.

B. Install all wiring in conduit unless otherwise noted.

C. Complete all work that may cause cable damage before pulling into conduit. Provide sufficient slack at the terminations to allow for proper connections.

D. Cables shall be lubricated with an NRTL listed commercial lubricant while they are being pulled. Use lubricants that are specifically recommended by the cable manufacturer. Do not exceed manufacturer's recommended maximum allowable pulling force.

E. Where connections are made in underground structures or in junction boxes in wet locations, make completely watertight. Install cables in underground structures with the

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MEDIUM-VOLTAGE CABLES AND ACCESSORIES 260513-5
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022
longest route parallel to the walls. Support cables by cable racks and secure to rack insulators with nylon cord or self-locking nylon cable ties.

F. Prepare cables and wires by cutting and stripping covering armor, jacket, and insulation properly to ensure uniform and neat appearance where cables and wires are terminated.

G. Trim cables and wires as short as practicable and arrange routing to facilitate inspection, testing, and maintenance. Train cables the long way around the inside of manholes and pull boxes. All cables shall have free cable where the cable enters or leaves the enclosures.

H. Cables shall be lubricated with a UL listed commercial lubricant while they are being pulled. Do not exceed manufacturer's recommended maximum allowable pulling force.

Cable shall be pulled at constant velocity, not to exceed 50 feet per minute and not to be less than 15 feet per minute. Dynamometer readings shall be taken periodically during the cable pulls and recorded.

I. Connect electrical cable to equipment in accordance with equipment manufacturer's written instructions and wiring diagrams. Wherever possible, mate and match conductors of electrical connections for proper interface between electrical power supplies and installed equipment.

J. Cover splices with electrical insulation equivalent to, or of higher rating than, insulation on conductors being spliced.

K. Refer to Division 26 "Electrical Identification" section for identification of electrical power supply conductor terminations with markers approved by Engineer as to types, colors, letter sizes and marker sizes. Affix markers at each point of termination as close as possible to each point of connection.

L. Minimum bending radius of any wire or cable shall be not less than that recommended by the manufacturer and in no case less than twelve (12) times O.D., but cable shall be installed at all times with as large a radius as possible.

3.02 ACCESSORIES
A. All splices, taps, stress cones, and terminations shall be made up by a qualified journeyman medium voltage cable splicer with factory kits approved for the specific cable or made up according to the methods and with materials recommended by the manufacturer supplying the cable.

B. Splices and terminations shall be made up in the presence of the Engineer. The Contractor shall provide notification sufficiently in advance so that the representative may be present during the work.

C. Seal all cable ends unless splicing is to be done immediately.

D. All new medium voltage cables shall be phased out and identified with lead or brass tags at each terminal and at manholes. Separate phase tags shall be 1-inch in diameter.

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MEDIUM-VOLTAGE CABLES AND ACCESSORIES 260513-6
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Information shall be stamped into tags with steel dies and stamping filled with red lead.

Tags shall indicate the voltage and cable size. Each cable shall be tagged with phase identification and date of installation. Attach tags to cables with No. 12 AWG Type TW copper wire.

E. Cable neutrals, shielding, and each section of metallic covering between splices shall be grounded with flexible copper braid at all terminals.

3.03 FIELD QUALITY CONTROL
A. Perform a visual and mechanical inspection for exposed sections of cables subject to damage, shield grounding, support, and termination, and verify cable bends meet or exceed the manufacturer’s minimum allowable bending radius.

B. Test each complete circuit prior to energizing. All medium voltage cables shall be DC high-pot tested after installation in accordance with ANSI/IEEE Standard 400. Test voltages shall not exceed 80 percent of the manufacturer’s factory test value. The highpot test shall be performed on the new cable prior to splicing to existing cable. Provide corona suppression on terminations. Replace any defective cable at no cost to Owner.

END OF SECTION

DRAFT - NOT FOR CONSTRUCTION

WIRES AND CABLES 260519-1
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022
SECTION 260519 600V WIRES AND CABLES
PART 1 - GENERAL

1.01 SECTION INCLUDES
A. Extent of electrical wire and cable work is indicated by Drawings and as specified herein.

B. Types of wire and cable in this section include conductors having insulation rated for use on power systems with voltages of not more than 600 volts, nominal.

1.02 QUALITY ASSURANCE
A. Manufacturers: Firms regularly engaged in manufacture of electrical wire and cable products of types and ratings required, whose products have been in satisfactory use in similar service for not less than five years.

B. NEMA/ICEA Compliance: Comply with NEMA/Insulated Cable Engineers Association standards pertaining to materials, construction, and testing of wire, cable, and accessories.

C. Nationally Recognized Testing Laboratory (NRTL) Compliance and Labeling: Comply with safety standards pertaining to electrical wires, cables, and accessories and provide products and components that have been listed and labeled by an NRTL such as UL or equal.

D. ANSI/ASTM: Comply with ANSI/ASTM standards pertaining to construction of wire and cable.

E. IEEE Compliance: Comply with IEEE standards pertaining to wire and cable.

F. California Electrical Code (CEC) Compliance: Comply with CEC as applicable to construction and installation of electrical wire, cable and accessories.

1.03 SUBMITTALS
A. Product Data: Submit manufacturer's data on 600 volt wire and cable, low voltage cables for remote-control, signaling, power-limited, and communication systems, and accessories. Include data confirming the listing of single terminals, lugs, or connectors and identifying the maximum size and quantity of conductors to be terminated.

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WIRES AND CABLES 260519-2
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022
PART 2 - MATERIALS

2.01 ACCEPTABLE MANUFACTURERS
A. 600 Volt Wire and Cable Manufacturers: Subject to compliance with requirements, manufacturers offering products that may be incorporated in the work include, but are not limited to General Cable, Pirelli, Southwire, or equal.

B. Low Voltage Cable Manufacturers: Subject to compliance with requirements, manufacturers offering products that may be incorporated in the work include, but are not limited to Alpha, Belden, Carol, and West Penn.

C. Accessories Manufacturers: Subject to compliance with requirements, manufacturers offering products which may be incorporated in the work include, but are not limited to AMP Products Corp., Burndy Corp., Ideal Industries, Inc., Penn-Union Co., Reliable Electric Co., Thomas and Betts Corp, 3M, or equal.

2.02 GENERAL
A. Except as otherwise indicated, provide wire and cable of manufacturer's standard materials as indicated by published product information, designed and constructed as recommended by manufacturer, and as required for the installation.

B. Provide new wire and cable in unbroken reels or containers of recent manufacture bearing NRTL Label, manufacturer's trademark, and type and size of wire or cable.

C. Provide electrical accessories as recommended by connector and terminal manufacturer for intended applications.

2.03 600 VOLT WIRE AND CABLE
A. Unless otherwise indicated, provide 600 volt insulated soft-drawn copper and minimum 12 AWG unless otherwise indicated. Conductors shall be Type THWN/THHN gasoline and oil resistant. Conductors shall be annealed copper, insulated with flame retardant, moisture and heat resistant thermoplastic, jacketed with abrasion, moisture, gasoline, and oil resistant nylon. Comply with CEC and the following for color coding of conductors.

Color code all secondary service, feeder, and branch circuit conductors. 240 volt system neutrals shall be white. 240 volt ungrounded conductors for phase A, phase B, and phase C shall be black, red, and blue, respectively. 480 volt ungrounded conductors for phase A, phase B, and Phase C shall be brown, orange, and yellow, respectively. Where 240 volt system neutrals and 480 volt system neutrals are located within the same enclosure, provide a yellow stripe on the 480 volt system neutral. The color coding for conductors 6 AWG and smaller shall be continuous along the entire length.

B. Provide solid or stranded conductors for sizes smaller than 8 AWG. Provide stranded conductors for sizes 8 AWG and larger.

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WIRES AND CABLES 260519-3
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2.04 REMOTE CONTROL, SIGNALLING, POWER-LIMITED, AND COMMUNICATION CABLES
A. Wire shall be No. 14 AWG, type THHN/THWN insulation, stranded copper, as manufactured by Okonite, Co.; Carol Cable Co. Inc.; Pirelli Cable Corp.; or equal.

B. Multi-conductor control cable, where shown on the Drawings, shall be stranded copper, 600V polyvinyl chloride insulated, nylon jacket over insulation, polyvinyl chloride jacket overall, Type TC as manufactured by the Okonite Co.; Pirelli Cable Corp., or equal.

2.05 INSTRUMENTATION WIRE
A. Wire for 4-20mA analog transmitter output signals shall be single pair cable (or single triad cable) with two or three 16AWG stranded and twisted on 2-inch lay, 300V polyvinyl chloride insulation, 105-degree C temperature rating, 100% mylar tape shield with drain wire, polyvinyl chloride overall jacket, 0.262-inch maximum overall diameter, and NRTL listed for underground wet location use. Provide Belden 9316 or equal.

2.06 ACCESSORIES
A. Provide electrical insulating tape, heat-shrinkable insulating tubing and boots, solder, electrical soldering flux, wire nuts, and cable ties as recommended for use by accessories manufacturers for type services indicated. Splices in wet locations shall be suitable for continuous operation under water.

B. Use compression type connectors for all taps, joints, and splices. Solderless connectors may be used for conductors smaller than 8 AWG.

PART 3 - EXECUTION

3.01 GENERAL
A. Install electrical wires and cables where indicated, in compliance with this specification and according to manufacturer's written instructions and recognized industry practices.

B. Install all wiring in conduit unless otherwise noted.

C. Complete all work that may cause wire and cable damage before pulling into conduit.

Provide sufficient slack at the terminations to allow for proper connections. Clean existing conduits prior to installing new conductors.

D. Group all communication conductors and power conductors that are smaller than 2/0 AWG in panelboards, cabinets, pull boxes, and switchboard wireways; tie with plastic ties; and fan out to terminals. Secure power conductors 2/0 AWG and larger with a 3/8" nylon rope using marline lace with installation following the enclosure manufacturer's instructions. Train wires and cables neatly in panels, cabinets, and equipment.

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WIRES AND CABLES 260519-4
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022
E. Wires and cables shall be lubricated with an NRTL listed commercial lubricant while they are being pulled. Use lubricants that are specifically recommended by the cable manufacturer. Do not exceed manufacturer's recommended maximum allowable pulling force.

F. Where connections are made in underground structures or in junction boxes in wet locations, make completely watertight. Install cables in underground structures with the longest route parallel to the walls. Support cables in underground structures by cable racks and secure to rack insulators with nylon cord or self locking nylon cable ties.

G. Prepare cables and wires by cutting and stripping covering armor, jacket, and insulation properly to ensure uniform and neat appearance where cables and wires are terminated.

The stripped length of bare conductor shall not be longer than required for the terminal, lug, or connector. Ensure all strands of each conductor are secured under the terminal, lug, or connector.

H. Trim cables and wires as short as practicable and arrange routing to facilitate inspection, testing, and maintenance.

I. Connect electrical wire and cable to equipment wire and cable in accordance with equipment manufacturer's written instructions and wiring diagrams. Wherever possible, mate and match conductors of electrical connections for proper interface between electrical power supplies and installed equipment.

J. Refer to Division 26 "Basic Electrical Identification" section for identification of electrical power supply conductor terminations with markers approved by Engineer as to types, colors, letter sizes, and marker sizes. Affix markers at each point of termination as close as possible to each point of connection.

K. Make conductors continuous between outlets or junction boxes. Make up splices only in junction boxes, outlet boxes, auxiliary gutters, or underground structures. Splices and taps shall have mechanical strength and insulation equivalent or greater than the conductor material.

L. Tighten pressure type lugs on panels and equipment and then re-tighten 24 hours or more later.

M. Where communication conductors are located in conduit in the same trench as power conductors, maintain a 12" separation between the conduits.

N. Tighten wire-binding connector screws firmly.

3.02 FIELD QUALITY CONTROL
A. Insulation resistance tests: Test each complete circuit prior to energizing. Insulation resistance between conductors and between each conductor and ground shall not be less than 25 megohms. Repair or replace wires or cables in circuits and repeat the test.

DRAFT - NOT FOR CONSTRUCTION

WIRES AND CABLES 260519-5
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022
B. Before energization, test cable and wire for continuity of circuitry and for short circuits.

Correct malfunctions when detected, at no additional cost to Owner.

C. After wire and cable hookups, energize circuitry and demonstrate functioning of each system in accordance with requirements.

END OF SECTION

DRAFT - NOT FOR CONSTRUCTION
GROUNDING AND BONDING 260526-1
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022
SECTION 260526 GROUNDING AND BONDING
PART 1 - GENERAL

1.01 SECTION INCLUDES
A. Extent of grounding work is indicated by Drawings. Types of grounding specified in this section include solid grounding.

B. Applications of grounding work in this section include underground metal water piping, grounding electrodes, enclosures, equipment, neutrals, raceways, devices, and outlet, junction, and pull boxes.

C. Requirements of this section apply to electrical grounding work specified elsewhere in these specifications and shown on drawings.

1.02 QUALITY ASSURANCE
A. Manufacturers: Firms regularly engaged in manufacture of electrical connectors, terminals, and fittings of types and ratings required and of ancillary grounding materials, including stranded cable, copper braid and bus, and ground rods, whose products have been in satisfactory use in similar service for not less than three years.

B. Nationally Recognized Testing Laboratory (NRTL) Compliance and Labeling: Comply with safety standards pertaining to electrical grounding and bonding and provide products and components that have been listed and labeled by an NRTL such as UL or equal.

Comply with requirements of UL Standards Nos. 467 and 869 pertaining to electrical grounding and bonding.

C. IEEE Compliance: Comply with requirements of IEEE Standards 80, 81, 141, and 142 pertaining to electrical grounding.

D. California Electrical Code (CEC) Compliance: Comply with CEC requirements as to materials and installation of electrical grounding systems, associated equipment, and wiring.

1.03 SUBMITTALS
A. Product Data: Submit manufacturer's data on grounding systems and accessories. Submit installation instructions from the manufacturer of the exothermically welded connections.

PART 2 - MATERIALS

2.01 ACCEPTABLE MANUFACTURERS
A. Available Manufacturers: Subject to compliance with requirements, manufacturers offering grounding products that may be incorporated in the work include, but are not

DRAFT - NOT FOR CONSTRUCTION
GROUNDING AND BONDING 260526-2
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022
limited to, Burndy Corp., General Electrical Supply Co., Ideal Industries, Inc., Thomas and Betts Corp., and O-Z Gedney Div; General Signal Corp.

2.02 GROUNDING SYSTEMS
A. General: Except as otherwise indicated, provide electrical grounding systems indicated, with assembly of materials including, but not limited to, cables/wires, connectors, terminals (solderless lugs), grounding buses in distribution equipment and panelboards, and additional accessories needed for complete installation. Where more than one type unit meets indicated requirements, selection is Installer's option. Where materials or components are not indicated, provide products complying with CEC, IEEE, and established industry standards for applications indicated.

B. Conductors: Unless otherwise indicated, provide electrical grounding conductors for grounding connections matching power supply wiring materials and sized according to CEC.

C. Bonding Jumper Braid: Copper braided tape, constructed of 30-gage bare copper wires and properly sized for indicated applications.

D. Flexible Jumper Strap: Flexible flat conductor, 480 strands of 30-gage bare copper wire; 3/4" wide, 9-1/2" long; 48,250 cm. Select braid with holes sized for 3/8" diameter bolts, and protect braid with copper bolt hole ends.

E. Grounding Rod Electrodes: Steel with copper clad welded exterior, 5/8” diameter x 10'.

F. Concrete-Encased Electrodes: Bare stranded copper conductor of AWG and minimum lengths indicated, encased within footings and foundations three inches above bottom.

Grounding conductor electrodes shall be exothermically welded together and to ground rods.

G. Electrical Grounding Connection Accessories: Provide electrical insulating tape, heatshrinkable insulating tubing, welding materials, and bonding straps, as recommended by accessories manufacturers for type of service indicated.

H. Field Welding: Comply with AWS Code for procedures, appearance, and quality of welds and for methods used in correcting welding work. Provide welded connections where grounding conductors connect to underground grounding rods/electrodes.

PART 3 - EXECUTION

3.01 INSTALLATION OF ELECTRICAL GROUNDING
A. General: Install electrical grounding systems where shown, in accordance with applicable portions of CEC and NECA's "Standard of Installation", and with recognized industry practices to ensure that products comply with requirements.

DRAFT - NOT FOR CONSTRUCTION
GROUNDING AND BONDING 260526-3
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022
B. Coordinate with other electrical work as necessary to interface installation of electrical grounding and bonding system work with other work. Install clamp-on connectors only on thoroughly cleaned metal contact surfaces, to ensure electrical conductivity and circuit integrity.

C. Ground electrical service system neutral at new service or separately derived systems and to grounding electrodes.

D. Raceway grounding: Provide code size insulated equipment grounding conductor in all raceways. All concrete duct banks shall include a 4/0AWG bare copper equipment ground conductor buried in the concrete.

E. Connect and bond equipment ground bus, panelboard, exposed non-current-carrying metal parts of electrical equipment, metal raceway systems, grounding conductor in raceways and cables, receptacle ground connectors, and piping systems.

F. Grounding electrode connections shall be exothermically welded, unless otherwise noted.

G. Tighten grounding and bonding connectors and terminals, including screws and bolts, according to manufacturers' published torque tightening values for connectors and bolts.

Where manufacturer's torquing requirements are not indicated, tighten connections to comply with tightening torque values specified in UL 486A to assure permanent and effective grounding.

3.02 FIELD QUALITY CONTROL
A. Upon completion of installation of each electrical system ground, test ground resistance with ground resistance tester. Measure ground resistance not less than two full days after the last trace of precipitation, and without the soil being moistened by any means other than natural drainage or seepage and without chemical treatment or other artificial means of reducing natural ground resistance. Perform tests, by the fall-of-potential method according to IEEE 81. Where tests show resistance to ground is over 5 ohms, take appropriate action, at no additional costs to Owner, to reduce resistance to 5 ohms or less, by driving additional ground rods and/or by chemically treating soil encircling ground rod; then retest to demonstrate compliance.

END OF SECTION

DRAFT - NOT FOR CONSTRUCTION
SUPPORTING DEVICES 260529-1
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022
SECTION 260529 SUPPORTING DEVICES
PART 1 - GENERAL

1.01 SECTION INCLUDES
A. Extent of supports, anchors, sleeves, and seals is indicated by Drawings and schedules and/or specified in other Division 26 sections.

B. Types of supports, anchors, sleeves, and seals specified in this Section include clevis hangers, c-clamps, channel supports, one-hole conduit straps, two-hole conduit straps, round steel rods, and expansion anchors.

C. Supports, anchors, sleeves, and seals furnished as part of factory fabricated equipment are specified as part of equipment assembly in other Division 26 sections and/or on the Drawings.

1.02 QUALITY ASSURANCE
A. Manufacturers: Firms regularly engaged in manufacture of supports, anchors, sleeves, firestopping, and seals of types, sizes, and ratings required, whose products have been in satisfactory use in similar service for not less than three years.

B. California Electrical Code (CEC): Comply with CEC as to construction and installation of electrical supporting devices.

C. ANSI/NEMA Compliance: Comply with requirements of ANSI/NEMA Standard Publication No. FB 1, "Fittings and Supports for Conduit and Cable Assemblies".

D. MSS Compliance: Comply with MSS standard requirements pertaining to fabrication and installation practices for pipe hangers and supports and with the seismic requirements of OSHPD.

E. NECA Compliance: Comply with National Electrical Contractors Association's "Standard of Installation" pertaining to anchors, fasteners, hangers, supports, and equipment mounting.

F. Nationally Recognized Testing Laboratory (NRTL) Compliance and Labeling: Comply with safety standards pertaining to electrical supporting devices and provide products and components that have been listed and labeled by an NRTL such as UL or equal.

1.03 SUBMITTALS
A. Product Data: Submit catalog cuts, specifications, installation instructions for each type of support, anchor, sleeve, and seal.

DRAFT - NOT FOR CONSTRUCTION
SUPPORTING DEVICES 260529-2
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022
PART 2 - MATERIALS

2.01 MANUFACTURED SUPPORTING DEVICES
A. Provide supports, anchors, sleeves, firestopping, and seals complying with manufacturer's standard materials, design, and construction, in accordance with published product information, and as required for a complete installation and as herein specified. Where more than one type of approved device meets indicated requirements, selection is Installer's option.

2.02 SUPPORTS
A. Provide supporting devices of types, sizes, and materials indicated and having the construction features indicated.

B. Clevis Hangers: For supporting 2" rigid metal conduit, galvanized steel, with 1/2" diameter hole for round steel rod, approximately 54 lbs. per 100 units.

C. Reducing Couplings: Steel rod reducing coupling, 1/2" x 5/8", black steel, approximately 16 lbs. per 100 units.

D. C-Clamps: Black malleable iron, 1/2" rod size, approximately 70 lbs. per 100 units.

E. One-Hole Conduit Straps: For supporting 3/4" rigid metal conduit, one-hole malleable iron with clamp back, approximately 19 lbs. per 100 units.

F. Two-Hole Conduit Straps: For supporting 3/4" rigid metal conduit, galvanized steel, 3/4" strap width, and 2-1/8" between center of screw holes.

G. Hexagon Nuts: For 1/2" rod size, galvanized steel, approximately 4 lbs. per 100 units.

H. Round Steel Rod: Black steel, 1/2" diameter, approximately 67 lbs. per 100 feet.

I. Offset Conduit Clamps: For supporting 2" rigid metal conduit, black steel, approximately 200 lbs. per 100 units.

2.03 ANCHORS
A. Concrete expansion type anchors shall be equal to Hilti KWIK BOLT TZ Wedge anchors.

Allowable shear and tension values in pounds for each anchor shall comply with latest issue of ICC-ES Report No. ESR-1917. Provide anchors of diameter and minimum embedment as required by loads. Provide carbon steel anchors in dry locations. Provide stainless steel anchors in damp and wet locations.

B. Expansion type anchors shall be proof load tested per requirements of the State of California.

DRAFT - NOT FOR CONSTRUCTION
SUPPORTING DEVICES 260529-3
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022

2.04 SLEEVES, FIRESTOPPING, AND SEALS
A. Provide sleeves and seals of types, sizes, and materials indicated. Provide factoryassembled watertight seals, of types and sizes indicated, suitable for sealing around conduit, pipe, or tubing passing through concrete. Construct with steel sleeves, malleable iron body, neoprene sealing grommets and rings, metal pressure rings, pressure clamps, and cap screws. Seals shall be NRTL and State Fire Marshal listed.

2.05 U-CHANNEL STRUT SYSTEMS
A. Provide U-Channel seismic restraint strut system for supporting electrical equipment and for fabricating conduit support trapezes. The channels shall consist of steel strips cold formed to size with a continuous slot on one side and inturned clamping ridges on each side. The channels shall be hot dipped galvanized, primed, and finish painted to match adjacent surfaces. The slot acts as a guide for attachment nuts. Provide all fittings that mate and match with the U-channel. Fittings shall have same finish as required for channels.

2.06 PIPE SLEEVES
A. Sheet metal pipe sleeves: Fabricate from galvanized sheet metal, round tube closed with snaplock joint, welded spiral seams, or welded longitudinal joint. Fabricate from the following gages: 3" and smaller, 20 gage; 4" to 6", 16 gage; over 6", 14 gage.

B. Steel pipe sleeves: Fabricate from Schedule 40 galvanized steel pipe. Remove burrs.

C. Iron pipe sleeves: Fabricate from cast iron or ductile iron pipe. Remove burrs.

D. Plastic pipe sleeves: Fabricate from Schedule 80 PVC plastic pipe. Remove burrs.

PART 3 - EXECUTION

3.01 INSTALLATION OF SUPPORTING DEVICES
A. Install hangers, supports, anchors, sleeves, firestopping, and seals as indicated in accordance with manufacturer's written instructions, recognized industry practices, and details on Drawings, to ensure supporting devices comply with requirements. Comply with NECA, CEC, NFPA, and ANSI/NEMA.

B. Coordinate with other electrical work, including raceway and wiring work as necessary to interface installation of supports, anchors, sleeves, firestopping, and seals with other work.

C. Minimum center to center spacing and edge distance of anchor bolts shall not exceed manufacturer's specifications.

END OF SECTION

DRAFT - NOT FOR CONSTRUCTION
RACEWAYS 260533-1
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022
SECTION 260533 RACEWAYS
PART 1 - GENERAL

1.01 SECTION INCLUDES
A. Extent of raceways work is indicated by Drawings and schedules.

B. Types of raceways in this section include rigid metal conduit, rigid nonmetallic conduit, liquidtight flexible metal conduit, and associated fittings.

1.02 QUALITY ASSURANCE
A. Manufacturers: Firms regularly engaged in manufacture of raceway systems of types and sizes required, whose products have been in satisfactory use in similar service for not less than five years.

B. Nationally Recognized Testing Laboratory (NRTL) Compliance and Labeling: Comply with safety standards pertaining to electrical raceway systems and provide products and components that have been listed and labeled by an NRTL such as UL or equal.

C. NEMA Compliance: Comply with applicable requirements of NEMA standards pertaining to raceways.

D. California Electrical Code (CEC) Compliance: Comply with requirements as applicable to construction and installation of raceway systems.

1.03 SUBMITTALS
A. Product Data: Submit manufacturer's data including applicable specifications, installation instructions, fittings, accessories, and general recommendations for each type of raceway.

PART 2 - MATERIALS

2.01 ACCEPTABLE MANUFACTURERS
A. Rigid Metal Conduit: Allied Tube and Conduit, Protective Coating Developments, Robroy Industries, Western Tube and Conduit, and Wheatland Tube Co.

B. Rigid Nonmetallic Conduit and Fittings: Allied Tube and Conduit, Cantex.

C. Liquidtight Flexible Metal Conduit: Alflex, Anamet Electrical.

D. Metallic Conduit Fittings: Appleton, Bridgeport, Crouse-Hinds, Raco, Thomas and Betts.

DRAFT - NOT FOR CONSTRUCTION
RACEWAYS 260533-2
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022
E. Manufacturers offering products that are not named in this section, may be incorporated into the Work, subject to compliance with the requirements of this section.

2.02 RIGID METAL CONDUIT AND FITTINGS
A. Rigid Steel Conduit: Rigid steel conduit shall be hot dip galvanized steel manufactured in accordance with UL Safety Standard #6 and ANSI C80.1.

B. PVC Coated Rigid Steel Conduit: PVC coated rigid steel conduit shall be hot dip galvanized in accordance with UL Safety Standard #6 and ANSI C80.1. Conduit shall have a 40-mil PVC exterior coating bonded to the galvanized surface and a urethane interior coating.

C. Fittings: All locknuts shall be galvanized or zinc plated steel. Fittings shall be threaded.

Insulating bushings shall be high impact thermoplastic. Fittings used outdoors or in other wet locations shall be NRTL listed for wet location. Fittings for burial in concrete shall be NRTL listed as concretetight. Fittings used with PVC coated rigid steel conduit shall have a 40 mil PVC exterior coating bonded to the galvanized surface and a urethane interior coating. All PVC coated rigid steel condulets and fittings shall be supplied with stainless steel screws.

2.03 RIGID NONMETALLIC CONDUIT AND FITTINGS
A. Rigid Nonmetallic Conduit Schedule 40: Rigid nonmetallic conduit shall comply with NEMA Standards Pub. No. TC2, Type 3, Schedule 40 PVC, for direct burial.

B. Fittings: Fittings used with rigid nonmetallic conduit shall comply with NEMA Standards Pub No. TC3. Fittings shall match conduit type and material. Adhesive shall be as recommended by the conduit manufacturer.

2.04 LIQUIDTIGHT FLEXIBLE METAL CONDUIT AND FITTINGS
A. Liquidtight Flexible Steel Conduit: Liquidtight flexible steel conduit shall be constructed of single strip, flexible, continuous, interlocked, and double-wrapped steel galvanized inside and outside. Coat with liquidtight jacket of flexible thermoplastic. Conduit shall include a copper equipment ground conductor in sizes through 1-1/4" trade size.

Aluminum conduit shall not be used.

B. Fittings: Provide galvanized fittings that are NRTL approved for grounding. Angle connectors shall be accessible. All fittings shall be watertight.

PART 3 - EXECUTION

3.01 GENERAL
A. Install electrical raceways where indicated, in compliance with this specification and according to manufacturer's written instructions and recognized industry practices.

DRAFT - NOT FOR CONSTRUCTION
RACEWAYS 260533-3
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022
B. Coordinate installation of electrical raceways with other work, including metal and concrete deck work, as necessary for proper interface.

C. Complete installation of electrical raceways before starting installation of cables/conductors within raceways. All raceway fittings shall be made up tight.

D. Keep interior of conduit clean and clear. Keep ends of all conduits closed during installation, to exclude water and foreign materials. Cap and seal all conduit stub-outs.

E. Cut ends of conduits square and ream to remove any burrs and sharp edges. Provide conduit terminations at cabinets and boxes with locknuts and bushings as required.

Locknuts shall be installed so that the convex side is against the box. Provide watertight conduit hubs on each entry into top of electrical equipment where area is protected by fire sprinklers or where equipment is installed in wet locations.

F. Provide junction or pull boxes where required for pulling conductors due to excessive number of bends or length of conduit runs.

G. Re-route conduit where necessary to clear structural and mechanical obstructions. All rerouting shall be approved by the Engineer.

H. Provide polyethylene pullrope, minimum 1/8" diameter, in all empty conduits. Pullrope shall have minimum 200 lbs. tensile strength. Leave minimum 36" of slack at each end of pullrope.

I. Field bends in conduit shall be smooth and shall not materially reduce the internal diameter of the conduit. Bends shall not be made at joints. In no case shall radii be less than required by applicable codes. All underground bends shall be made with as large a radius as possible to facilitate pulling of conductors. Radii of bends in conduits for service lateral shall comply with utility company requirements.

J. Orient all raceways to maintain accessibility to conduit bodies, junction boxes, pull boxes, and outlet boxes.

K. Install exposed and concealed conduit to maintain 6" clearance from parallel runs of fluid filled piping, steam piping, and ductwork.

L. Where communication conductors are located in conduit in the same trench as power conductors, maintain a 12" separation between the conduits.

M. Provide insulated bushings or insulated throat connectors for terminations at all boxes and cabinets including any underground conduits for installation of utility conductors.

N. Provide expansion fittings or flexible conduit wherever conduits cross building separations, expansion joints, and seismic separations. Expansion provisions shall allow for twice the expansion and relative drift of the building elements.

DRAFT - NOT FOR CONSTRUCTION
RACEWAYS 260533-4
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022

3.02 WIRING METHOD
A. Rigid steel conduit: Install rigid steel conduit embedded in concrete, in masonry walls, where subject to mechanical damage, or where exposed.

B. PVC coated rigid steel conduit: Install PVC coated rigid steel conduit underground, where in direct contact with earth, embedded in concrete, where subject to mechanical damage, where exposed, and where indicated on the Drawings. All penetrations through concrete walls in damp or wet locations shall be made with PVC coated rigid steel conduit.

C. Rigid nonmetallic conduit: Rigid nonmetallic conduit may be used in lieu of PVC coated rigid steel conduit when installed underground or under slabs in contact with earth. Rigid nonmetallic conduit shall not be used for conduits containing branch circuit conductors.

All vertical elbows and risers in rigid nonmetallic conduit runs shall be PVC coated rigid galvanized steel conduit.

D. Liquidtight flexible steel conduit: Install liquidtight flexible steel conduit and fittings in damp locations, wet locations, or where subjected to dripping oil for final connection to motors or other vibrating equipment and where indicated on the Drawings. It may also be used in other locations where, due to structural conditions, rigid steel conduit cannot be used. This use will be allowed only if approved by the Engineer.

3.03 EXPOSED INSTALLATIONS
A. Secure conduit runs with one-hole malleable iron or two-hole galvanized clamp type straps. Where several conduits are run together or where conduits are suspended, hang them on metal framing systems.

B. Run exposed conduit at right angles or parallel to structural members, walls, floor, and ceiling.

3.04 CONCEALED INSTALLATIONS
A. Maximum conduit trade size for embedment in concrete shall be 3/4" trade size. Install conduit within middle one-third of concrete slab. Conduits shall be installed with a minimum 1" concrete coverage. Tie raceways to reinforcing rods or otherwise secure them to prevent sagging or shifting during concrete placement. Laterally space conduits in parallel runs to allow concrete to pass between them. Coordinate conduit installation with reinforcement bars.

B. Route concealed conduits with the minimum number of bends in the shortest practical distance. Care shall be taken to coordinate the installation with other work and to provide adequate space for future modifications.

DRAFT - NOT FOR CONSTRUCTION
RACEWAYS 260533-5
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022

3.05 UNDERGROUND INSTALLATIONS
A. Bury underground conduits containing maximum 600 volt conductor insulation a minimum depth of 24" from surface of finished grade to the top surface of the conduit.

Where they run under roadways or parking areas, depth shall be 30" minimum from finished grade. Coordinate all new underground installations with existing and new piping systems and utilities.

B. Minimum underground conduit size shall be 3/4" trade size. Underground conduit runs larger than 1" trade size, in non-traffic areas, shall be buried to a minimum depth of 12" below slab. Where underground conduits rise through finished grade the curved portion of bends shall not be visible.

C. Underground conduit runs 3" trade size and larger shall be cleaned by pulling a flexible mandrel through each conduit and then pulling a wire brush and swab through each conduit until conduit is clear of particles including earth, sand, and gravel. Underground conduits smaller than 3" trade size shall be cleaned by pulling a wire brush and swab through each conduit until conduit is clear of all particles including earth, sand, and gravel.

D. All conduit runs installed underground shall be encased all around in minimum of 3" of concrete unless otherwise noted. Where PVC coated rigid steel conduit is used, concrete encasement shall not be required. Rigid nonmetallic conduit in contact with earth installed under building slabs may be buried directly in the ground, however, they shall be encased in 3" of concrete where they extend beyond a building wall.

E. Where other utility piping systems are encountered or being installed along a raceway route, maintain a 12-inch-minimum vertical separation between raceway 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 Engineer for instructions before further work is done.

F. Trenching and backfill for underground or buried conduit or cable shall be provided as part of the work of this section of the specifications. Trenching and backfill and testing and inspection of trenching and backfill for underground buried conduit or cable shall be performed as specified in Section 312316 - Trenching, Backfilling, and Compacting.

G. Concrete encased individual conduits and multiple conduits in the same trench (duct banks) shall comply with the following:

1. Conduits shall be installed on a grade line of two inches fall per 100 feet, sloping away from buildings and toward a manhole or pull box.

2. Concrete for conduit encasement shall be Class C (2000 psi). The top three (3) inches of envelope shall be colored red with red iron oxide pigment that is integrally mixed with the concrete in the proportion of two pounds per sack of cement.

Pigment shall be shall be commercially pure hydrated oxide, insoluble in water, free

DRAFT - NOT FOR CONSTRUCTION
RACEWAYS 260533-6
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022
from soluble salts and acids, with calcium sulfate less than 10%. Pigment shall be fortified with a plasticizing agent that is compatible with type II portland cement.

Pigment shall be dry batched with the aggregate.

3. Separation of conduits shall be maintained by installing plastic spacers that interlock horizontally and vertically. Spacers shall be installed to provide a completely enclosed and supported conduit assembly every eight feet with hold down anchors installed between each spacer. Include spacers between earth and the bottom duct row to maintain concrete encasement around the conduits. Stagger the joints of the conduits by rows and layers.

4. All conduits containing power cables shall be arranged so that exterior surface of every conduit is within 3 inches of earth in at least one quadrant.

END OF SECTION

DRAFT - NOT FOR CONSTRUCTION

ELECTRICAL BOXES 260534-1
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022
SECTION 260534 ELECTRICAL BOXES
PART 1 - GENERAL

1.01 SECTION INCLUDES
A. Extent of electrical box work is indicated by Drawings and as specified herein.

B. Types of electrical boxes in this Section include outlet boxes, junction boxes, pull boxes, and conduit bodies.

1.02 QUALITY ASSURANCE
A. Manufacturers: Firms regularly engaged in manufacture of electrical boxes of types, materials, and sizes required, whose products have been in satisfactory use in similar service for not less than three years.

B. California Electrical Code (CEC) Compliance: Comply with CEC as applicable to construction and installation of electrical wiring boxes.

C. Nationally Recognized Testing Laboratory (NRTL) Compliance and Labeling: Comply with safety standards pertaining to electrical boxes and provide products and components that have been listed and labeled by an NRTL such as UL or equal.

1.03 SUBMITTALS
A. Product Data: Submit manufacturer's data on pull boxes, junction boxes, outlet boxes, and conduit bodies. Identify proposed equipment by manufacturer’s catalog numbers.

PART 2 - MATERIALS

2.01 OUTLET BOXES
A. Provide corrosion-resistant cast metal outlet boxes of types, number of gangs, shapes, and sizes including depth of boxes, to suit each respective location and installation. Construct with threaded rigid hubs of the quantity and size required at each location, and with threaded screw holes with corrosion-resistant screws for securing box covers and wiring devices. Exposed outlet boxes in damp or wet locations shall be provided with cast metal faceplates with spring hinged waterproof caps suitably configured for each application and device installed, including faceplate gaskets and corrosion-resistant fasteners.

B. Provide boxes of proper code size for the number of and types of devices installed and number and AWG of wires passing through or terminating therein, but in no case less than 4-9/32" high by 2-3/4" wide by 2-5/8" deep, unless specifically noted as smaller on the Drawings.

DRAFT - NOT FOR CONSTRUCTION

ELECTRICAL BOXES 260534-2
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022
C. For single gang outlet boxes installed in concrete or masonry block walls, use minimum of 3-1/2" deep, 4" long, and 2" wide, set flush with walls and provided with single gang wall plate. Mount boxes installed in masonry at vertical center of block.

D. Exposed Outlet Box Accessories: Provide outlet box accessories as required for each installation that are compatible with outlet boxes being used and fulfilling requirements of individual wiring situations. Provide cast metal covers either blank or with the proper configuration for the devices installed at each location. Exposed outlet boxes in damp or wet locations shall be provided with cast metal faceplates with covers suitably configured for each application and device installed, including faceplate gaskets and corrosionresistant fasteners.

E. Available Manufacturers: Subject to compliance with requirements, manufacturers offering cast metal outlet boxes that may be incorporated in the work include, but are not limited to Appleton Electric Co., Bell Electric Co., Crouse Hinds Co., O-Z/Gedney, or equal.

2.02 JUNCTION AND PULL BOXES
A. Provide galvanized code gage sheet steel junction and pull boxes, with screw-on covers, of types, shapes, and sizes to suit each respective location and installation, with welded seams and equipped with stainless steel nuts, bolts, screws, and washers. Furnish in prime coat. Provide NEMA 4X stainless steel in exterior locations. Finish paint all exposed junction and pull boxes to match adjacent surfaces. Provide screw fastened engraved nameplate on each pull box and junction box identified with a specific name on the Drawings.

B. Available Manufacturers: Subject to compliance with requirements, manufacturers offering junction and pull boxes that may be incorporated in the work include, but are not limited to, Circle A-W, Cross, Hammond, or equal.

2.03 CONDUIT BODIES
A. Provide galvanized cast metal conduit bodies of types, shapes, and sizes to suit respective locations and installation, constructed with threaded conduit entrance hubs, removable covers, and corrosion-resistant screws. Covers shall be gasketed Form 8 style.

B. Available Manufacturers: Subject to compliance with requirements, manufacturers offering conduit bodies that may be incorporated in the work include Appleton Electric Co., Crouse-Hinds Co., Killark Electric Mfg. Co., O-Z/Gedney Co., Pyle-National Co., or equal.

2.04 KNOCKOUT CLOSURES
A. Provide corrosion-resistant punched steel box knockout closures of types and sizes to effectively close openings in the box.

DRAFT - NOT FOR CONSTRUCTION

ELECTRICAL BOXES 260534-3
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022
PART 3 - EXECUTION

3.01 INSTALLATION OF ELECTRICAL BOXES
A. General: Install electrical boxes where indicated, complying with manufacturer's written instructions, with applicable requirements of CEC and NECA's "Standard of Installation," and with recognized industry practices to ensure that products fulfill requirements.

B. Coordinate installation of electrical boxes with wire/cable and raceway installation work.

C. Provide weatherproof outlets boxes in all damp and wet locations unless otherwise noted.

D. Provide cast metal outlet boxes where mounted exposed in dry locations unless otherwise noted.

E. Provide gasketed weatherproof covers for concealed boxes in all damp and wet locations unless otherwise noted.

F. Provide knockout closures to cap unused knockout holes where blanks have been removed.

G. Install boxes and conduit bodies in those locations that ensure ready accessibility of electrical wiring.

H. Fasten boxes rigidly to substrates or structural surfaces to which attached, or solidly embed electrical boxes in concrete.

I. Provide electrical connections for installed boxes.

END OF SECTION

DRAFT - NOT FOR CONSTRUCTION

UNDERGROUND STRUCTURES 260535-1
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022
SECTION 260535 UNDERGROUND STRUCTURES
PART 1 - GENERAL

1.01 SECTION INCLUDES
A. Extent of underground structure work is indicated by Drawings and is hereby defined to include only those used for installation of electrical cables, wires, and equipment.

B. Types of underground structures in this section include, but are not limited to, handholes.

C. Excavation and backfilling for underground structures shall comply with Section 312300 Earthwork.

D. Concrete for underground structures shall comply with the requirements of this Division and with manufacturer's standards for construction of underground structures.

E. Comply with manufacturer's directions for waterproofing and dampproofing of handholes.

1.02 QUALITY ASSURANCE
A. Manufacturers: Firms regularly engaged in manufacture of underground structures of types and sizes required, whose products have been in satisfactory use in similar service for not less than five years.

B. ANSI Compliance: Comply with requirements of ANSI C2, "National Electrical Safety Code", pertaining to construction and installation of handholes and manholes.

C. ASTM Compliance: Comply with applicable provisions of American Society for Testing and Materials (ASTM) standards pertaining to construction and materials for vaults, manholes, and handholes.

D. Nationally Recognized Testing Laboratory (NRTL) Compliance: Provide underground structure accessories that are listed and labeled by an NRTL such as UL.

E. California Electrical Code (CEC) Compliance: Comply with CEC requirements as applicable to construction and installation of handholes.

1.03 SUBMITTALS
A. Manufacturer's Data: Submit manufacturer's data on each underground structure including size, concrete strength, cover style, and cover identification provided for each individual handhole and manhole.

B. Accessories: Submit manufacturer’s data and installation instructions on each accessory provided with underground structures including ladders, cable racks, and joint sealing products.

DRAFT - NOT FOR CONSTRUCTION

UNDERGROUND STRUCTURES 260535-2
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022

1.04 PRODUCT DELIVERY, STORAGE, AND HANDLING
A. Equip and protect factory-fabricated underground structures to prevent damage, including chipping and cracking during transportation, storage, and handling. Do not install damaged units; replace and remove from project site.

PART 2 - MATERIALS

2.01 ACCEPTABLE MANUFACTURERS
A. Subject to compliance with requirements, manufacturers offering products that may be incorporated in the work include, but are not limited to, the following: Jensen Precast, Oldcastle Precast Products, Inc., BES Products, Inc., or equal.

2.02 FACTORY-FABRICATED HANDHOLES
A. Provide handholes for pulling, splicing, and terminating conductors, in types and sizes indicated, with watertight bolt down cover and knockout access holes.

B. Handholes with inside dimensions less than 17” wide by 30” long shall be provided with a concrete bolt down cover. Handholes with inside dimensions 17"wide by 30" long and 24” wide by 36” long or smaller shall be provided with a single plate parkway loading galvanized steel cover. Handholes with inside dimensions 24” wide by 36” long, and larger, shall be provided with a single plate galvanized steel cover. Covers shall be fastened with stainless steel hex head bolts.

C. Covers for all other boxes shall be engraved or identified with permanent identification; "ELECTRICAL" for primary and secondary power.

2.03 ACCESSORIES
A. Provide handhole accessories, including pulling-in irons, embedded cable support accessories, cable rack arms, porcelain saddles, sump pump pits, mastics, and sealants.

Cable racks shall be hot dip galvanized.

PART 3 - EXECUTION

3.01 INSTALLATION OF UNDERGROUND STRUCTURES
A. Install handholes as indicated, according to manufacturer's written instructions and with recognized industry practices to ensure compliance with requirements.

B. Place precast concrete sections as indicated. Provide minimum six inches of compacted crushed rock or base sand material under the full bottom dimension of the unit. The top of underground structures shall be set to avoid being above or below finished grades. The

DRAFT - NOT FOR CONSTRUCTION

UNDERGROUND STRUCTURES 260535-3
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022
units shall be located to avoid the possibility of being located at a low point in the graded area where drain water may flow.

C. In turfed areas, the top of underground structures shall be adjusted to follow the slope of the terrain and the top shall not be lower than the grade nor protrude more than one inch above the grade. In paved areas, the top shall be adjusted to follow the slope of the grade.

It shall be raised approximately half an inch above surrounding grade and the pavement built up even with the top of the unit to allow for drainage. Use epoxy bonding compound where steps are mortared into unit walls.

D. Ground permanently and effectively all metal equipment cases, cable racks, etc., in underground structures. Install ground rod in each handhole where indicated. Locate ground rod 6" from adjacent walls, with 4" projecting above floor for ground clamps. If rock bottom is encountered, bury ground rod in horizontal trench with projection into handhole or manhole
E. Coordinate dampproofing and waterproofing work with installation of precast concrete units, as necessary for proper interface. The sections of precast handholes shall be assembled so that the joints shall be watertight. Apply bituminous mastic coating at joints between sections.

F. Coordinate with other Work, including electrical raceway and wiring Work, as necessary to interface installation of manholes and handholes with other Work.

3.02 BACKFILLING
A. General: Delay backfilling of excavations surrounding handholes until after initial inspection has been completed.

END OF SECTION

DRAFT - NOT FOR CONSTRUCTION
BASIC ELECTRICAL IDENTIFICATION 260553-1
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022
SECTION 260553 BASIC ELECTRICAL IDENTIFICATION
PART 1 - GENERAL

1.01 SECTION INCLUDES
A. Extent of electrical identification is indicated by Drawings and schedules and this specification.

B. Types of electrical identification specified in this section include the following:

1. Electrical power, communications, signal, and alarm conductors.

2. Operational instructions and warnings.

3. Equipment/system identification signs.

4. Conduits, outlets, and boxes.

1.02 QUALITY ASSURANCE
A. Manufacturers: Firms regularly engaged in manufacture of electrical identification products of types required, whose products have been in satisfactory use in similar service for not less than three years.

B. Nationally Recognized Testing Laboratory (NRTL) Compliance and Labeling: Comply with safety standards pertaining to electrical identification and provide products and components that have been listed and labeled by an NRTL such as UL or equal. Comply with UL Standard 969, "Marking and Labeling Systems", pertaining to electrical identification systems.

C. NEMA Compliance: Comply with requirements of NEMA Standards Nos. WC-1 and WC-2 pertaining to identification of power and control conductors.

D. California Electrical Code (CEC) Compliance: Comply with CEC as to installation of identifying labels and markers for wiring and equipment. Identify all equipment, conduits, outlets, junction boxes, and pull boxes of emergency systems.

1.03 SUBMITTALS
A. Product Data: Submit manufacturer's data on electrical identification materials and products.

PART 2 - MATERIALS

2.01 ACCEPTABLE MANUFACTURERS
A. Available Manufacturers: Subject to compliance with requirements, manufacturers offering electrical identification products that may be incorporated in the work include

DRAFT - NOT FOR CONSTRUCTION
BASIC ELECTRICAL IDENTIFICATION 260553-2
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022
W.H. Brady Co., Calpico Inc., Ideal Industries, Inc., National Band and Tag Co., Panduit Corp., Seton Name Plate Co., or equal.

2.02 ELECTRICAL IDENTIFICATION MATERIALS
A. Except as otherwise indicated, provide manufacturer's standard products of categories and types required for each application. Where more than a single type is specified for an application, selection is Installer's option, but provide single selection for each application.

B. Color-Coded Conduit Markers: Provide manufacturer's standard pre-printed, flexible or semi-rigid, permanent, plastic-sheet conduit markers, extending 350 degrees around conduits, designed for attachment to conduit by adhesive. Except as otherwise indicated, provide lettering that indicates voltage of conductor(s) in conduit. Provide 8" minimum length. Unless otherwise indicated or required by governing regulation, provide orange markers with black letters.

C. Color-Coded Plastic Tape: Provide manufacturer's standard self-adhesive vinyl tape not less than 3 mils thick by 1-1/2" wide. Unless otherwise indicated or required by governing regulations, provide orange tape.

D. Cable/Conductor Identification Bands: Provide manufacturer's standard vinyl-cloth selfadhesive cable/conductor markers of wrap-around type, either pre-numbered plastic coated type or write-on type with clear plastic self-adhesive cover flap, numbered to show circuit identification.

E. Engraved Plastic-Laminate Signs: Provide engraving stock melamine plastic laminate, complying with FS L-P-387, in sizes and thicknesses indicated, engraved with engraver's standard letter style of sizes and wording indicated, black face and white core plies (letter color). Provide thickness of 1/16", except as otherwise indicated. Punch plastic laminate for mechanical fastening and provide self-tapping stainless steel screws. Provide contacttype permanent adhesive where screws cannot or should not penetrate substrate.

2.03 LETTERING AND GRAPHICS
A. Coordinate names, abbreviations, and other designations used in electrical identification work with corresponding designations shown, specified, or scheduled. Provide numbers, lettering, and wording as indicated or, if not otherwise indicated, as recommended by manufacturers, or as required for proper identification and operation/maintenance of electrical systems and equipment. Comply with ANSI A13.1 pertaining to minimum sizes for letters and numbers.

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BASIC ELECTRICAL IDENTIFICATION 260553-3
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022
PART 3 - EXECUTION

3.01 APPLICATION AND INSTALLATION
A. General Installation Requirements: Install electrical identification products as indicated, in accordance with manufacturer's written instructions and with requirements of CEC.

Where identification is to be applied to surfaces that require finish, install identification after completion of painting.

B. Conduit Identification: Where electrical conduit is exposed in spaces with exposed mechanical piping that is identified by a color-coded method, apply color-coded identification on electrical conduit in a manner similar to piping identification. Except as otherwise indicated, use orange as coded color for conduit.

C. Cable/Conductor Identification: Apply cable/conductor identification including voltage, phase, and feeder number on each cable and conductor in each box/enclosure/cabinet where wires of more than one lighting or power circuit occur, except where another form of identification (such as color-coded conductors) is provided. Match identification with marking system used in panelboards, shop drawings, contract documents, and similar previously established identification for project electrical work.

D. Danger Signs: Critical Switches/Controls: Install danger signs on switches and similar controls, regardless of whether concealed or locked up, where untimely or inadvertent operation (by anyone) could result in significant danger to persons or damage to or loss of property.

E. Equipment/System Identification: Install engraved plastic-laminate sign on each major unit of electrical equipment in building, including central or master unit of each electrical system including communication, signal, and alarm systems, unless unit is specified with its own self-explanatory identification. Except as otherwise indicated, provide single line of text, 1/2" high lettering on 1-1/2" sign (2" high where 2 lines are required), white lettering in black field. Provide text matching terminology and numbering of the contract documents and shop drawings. Install signs at locations indicated or, where not otherwise indicated, at location for greatest convenience of viewing without interference with operation and maintenance of equipment. Secure to substrate with fasteners, except use adhesive where fasteners should not or cannot penetrate the substrate. Provide signs for each unit of the following categories of electrical work:

1. Electrical power, signal, and control cabinets and enclosures.

2. Disconnect switches, individually mounted circuit breakers.

3. Control relays and starters.

4. Junction and pull boxes assigned identifying systems, names, or numbers.

END OF SECTION

DRAFT - NOT FOR CONSTRUCTION

ELECTRICAL SYSTEM STUDY
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022 260573-1 SECTION 260573 ELECTRICAL SYSTEM STUDY
PART 1 - GENERAL

1.01 SECTION INCLUDES
A. An Electrical System Study consisting of short circuit studies, protective device evaluation studies, protective device coordination studies, and arc flash analysis shall be performed on a portion of the 480Y/277 volt power distribution systems. These studies shall be performed by an independent firm specializing in such studies such as Eaton Corporation, KSG Consulting Engineers, or as approved by Engineer. The studies shall be submitted prior to installation of the new generator. The Electrical System Studies shall be performed in a timely manner.

B. The studies shall include all portions of the new 480 volt electrical distribution system from the Pacific Gas & Electric Co. transformer and generator power sources to the downstream load terminals of the existing switchboard PB distribution breakers and the fire pump controller.

C. The Short Circuit Study shall be in accordance with ANSI C37.5 - 1979, IEEE Std. 399 - 1997 and IEEE Std. 141-1993.

1.02 SUBMITTALS
A. The results of the electrical system study shall be summarized in a final report. A pdf copy of the final report shall be submitted.

B. The report shall include the following sections:

1. Description, purpose, basis and scope of the study and a one line diagram of that portion of the Electrical System which is included in the scope of the study.

2. Tabulations of circuit breaker, switch, fuse and other protective device ratings versus calculated short circuit duties, and commentary regarding same.

3. Protective device time versus current coordination curves, tabulations of relay and circuit breaker trip settings, fuse selection, and commentary regarding same.

4. Fault current calculations including a definition of terms and guide for interpretation of computer printout.

5. Incident energy levels, protection boundaries, and PPE levels.

6. Provide a sample of the Arc Flash labels in the report to be used for this project.

1.03 SHORT CIRCUIT STUDY
A. The short circuit study shall be performed with the aid of a computer program.

DRAFT - NOT FOR CONSTRUCTION

ELECTRICAL SYSTEM STUDY
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022 260573-2 B. The study input data shall include the generators' short circuit contribution, resistance, and reactance components of the branch impedances, the X/R ratios, base quantities selected, and other source impedances
C. Short circuit momentary duty values and interrupting duty values shall be calculated on the basis of assumed three-phase bolted short circuits at switchboards, primary distribution transformer overcurrent protection, and other significant locations through the systems.

The short circuit tabulations shall include symmetrical fault currents and X/R ratios. For each fault location, the total duty on the bus as well as the individual contribution from each connected branch shall be listed with its respective X/R ratio.

1.04 PROTECTIVE DEVICE EVALUATION STUDY
A. A protective device evaluation study shall be performed to determine the adequacy of circuit breakers and fuses by tabulating and comparing the short circuit ratings of these devices with the calculated fault currents. Appropriate multiplying factors based on system X/R ratios and protective device rating standards shall be applied. Any problem areas or inadequacies in the equipment due to short circuit currents shall be promptly brought to the Engineer's attention.

1.05 PROTECTIVE DEVICE COORDINATION STUDY
A. A protective device coordination study shall be performed to provide the necessary calculations and logic decisions required to select or to check the selection of power fuse ratings, protective relay characteristics and settings, ratios and characteristics of associated current transformers, and low voltage breaker trip characteristics and settings. The objective of the study is to obtain optimum protective and coordination performance from these devices.

B. The phase and ground overcurrent and ground fault protection shall be included as well as settings of all other adjustable protective devices.

C. The time-current characteristics of the specified protective devices shall be drawn on Keuffel and Esser log-log paper. The plots shall include complete titles, representative one-line diagram and legends, relays or fuse characteristics, significant motor starting characteristics, complete parameters of transformers, complete operating bands of low voltage circuit breaker trip curves and fuses. The coordination plots shall indicate the types of protective devices selected, proposed relay taps, time dial and instantaneous trip settings, transformer magnetizing inrush and ANSI transformer withstand parameters, cable thermal overcurrent withstand limits and significant symmetrical and asymmetrical fault currents. All restrictions of the California Electrical Code shall be adhered to and proper coordination intervals and separation of characteristic curves shall be maintained.

The coordination plots for phase and ground protective devices shall be provided on a system basis. A sufficient number of separate curves shall be used to clearly indicate the coordination achieved.

DRAFT - NOT FOR CONSTRUCTION

ELECTRICAL SYSTEM STUDY
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022 260573-3

1.06 PROTECTIVE DEVICE TESTING, CALIBRATION, AND ADJUSTMENT A. The equipment manufacturer or the independent firm specializing in the calibration and testing shall provide the services of a qualified engineer and necessary tools and equipment to test, calibrate, and adjust all new and modified existing ground fault settings and circuit breaker trip devices as recommended in the electrical system studies.

1.07 ARC FLASH ANALYSIS
A. Provide an Arc Flash analysis to identify protection boundaries, incident energy levels (IE) and personal protective equipment (PPE) to be worn by maintenance personnel when working on energized equipment.

B. The analysis shall be based on the calculation methods and recommendations in NFPA 70E, Standard for Electrical Safety in the Workplace, 2009 Edition. Provide calculations utilizing software as provided by ETAP or SKM. The electrical system shall be modeled to include the utility incoming utility service, utility transformer, switchboard PB, standby generators, and the fire pump controller. Completion of the coordination study is required prior to performing the flash analysis.

C. Using the selected protective device settings, provide analysis of alternative scenarios to determine the worst case incident energy levels and select appropriate PPE levels. The scenarios shall include but not limited to: (1) maximum available short circuit current available from the utility; (2) minimum short circuit current available from the utility; and (3) available short circuit current when operating the electrical system from the standby generator.

D. The Arc Flash analysis shall be provided in a report format which includes the one line diagram, coordination curves, selected protective device settings, available short circuit currents, documentation of input characteristics for the electrical system, incident energy levels, protection boundaries and PPE levels. Provide a sample of the Arc Flash labels in the report to be used for this project.

E. After review and acceptance of the Arc Flash analysis by the Engineer, Contractor shall provide and install Arc Flash labels on the equipment.

F. The study shall be signed and stamped by an electrical engineer registered in the State of California.

PART 2 - MATERIALS [NOT USED]
PART 3 - EXECUTION [NOT USED]

END OF SECTION

DRAFT - NOT FOR CONSTRUCTION
MEDIUM-VOLTAGE TRANSFORMERS 261219-1
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022
SECTION 261219 MEDIUM-VOLTAGE TRANSFORMERS
PART 1 - GENERAL

1.01 SECTION INCLUDES
A. Extent of transformer work is indicated by Drawings.

B. Types of transformers specified in this section include medium voltage liquid filled transformers.

C. Refer to other Division 26 sections for electrical wiring connections required in conjunction with transformers.

D. Electrical wiring connections for transformers are specified in applicable Division 26 sections.

1.02 QUALITY ASSURANCE
A. Manufacturers: Firms regularly engaged in manufacture of power/distribution transformers of types and ratings required, whose products have been in satisfactory use in similar service for not less than five years.

B. CEC Compliance: Comply with CEC as applicable to installation and construction of electrical power/distribution transformers.

C. Nationally Recognized Testing Laboratory (NRTL) Compliance and Labeling: Comply with safety standards pertaining to medium voltage transformers and provide products and components that have been listed and labeled by an NRTL such as UL or equal.

D. NEMA Compliance: Comply with applicable portions of NEMA Std Pub Nos. TR 1 and TR 27 pertaining to power/distribution transformers.

E. ANSI/IEEE Compliance: Comply with applicable ANSI/IEEE standards pertaining to power/distribution transformers including ANSI C57.12.

1.03 SUBMITTALS
A. Product Data: Submit manufacturer's technical product data including rated kVA, frequency, primary and secondary voltages, percent taps, impedance, and standard published data. Submit manufacturer’s installation instructions.

B. Shop Drawings: Submit manufacturer's drawings indicating dimensions and weight loadings for transformer installations, showing layout, fusing including type and size, mountings and supports, center of gravity, and electrical connections to equipment external from the transformer. Include certification of transformer performance efficiency at indicated loads, percentage regulation at 100% and 80% power factor, no-load and fullPage 237 of 682

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MEDIUM-VOLTAGE TRANSFORMERS 261219-2
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022
load losses in watts, percent impedance at 75 C, hot-spot and average temperature rise above 40 C ambient, and sound level in decibels.

C. Wiring Diagrams: Submit wiring protection and control diagrams for power distribution transformers. Clearly differentiate between portions of wiring that are manufacturer installed and portions to be field installed.

D. Operation and Maintenance Data: Submit operation and maintenance procedures for review. Data sheets on all the major components shall be submitted. The data sheets shall be supplemented by written text and shall include the following:

1. Operating procedures:
a. Start-up routine and normal operating instructions.
b. Control, stopping, shutdown, and emergency instructions. c. Special operating instructions.

2. Maintenance procedures:
a. Routine maintenance.
b. Adjustment and checking.
c. Original manufacturer's parts list, illustrations, assembly drawings, and diagrams required for maintenance.
d. Recommended spare parts list including manufacturer's name and part number for all components of the system.

PART 2 - MATERIALS

2.01 ACCEPTABLE MANUFACTURERS
A. Manufacturer: Subject to compliance with requirements, provide products as manufactured by Cooper Power Systems, Cutler-Hammer, General Electric Company, or equal.

2.02 MEDIUM-VOLTAGE DISTRIBUTION TRANSFORMERS
A. General: Except as otherwise indicated, provide manufacturer's standard materials and components as indicated by published product information, design and construction as recommended by manufacturer, and as required for complete installation.

B. Liquid Filled Distribution Transformers: Provide factory-assembled, liquid filled, outdoor type tamper resistant, deadfront, pad mounted distribution transformers where shown, of sizes, characteristics, and rated capacities indicated: 3 phase, 60 hertz, minimum 5.6% impedance, with 4160 volt 95 kV BIL delta primaries, and 480Y/277 volt three phase 30 kV BIL wye secondaries with grounded neutral. Provide primary windings of copper or aluminum with 4 taps, 2, 2-1/2% increments above and 2, 2-1/2" increments below full

DRAFT - NOT FOR CONSTRUCTION
MEDIUM-VOLTAGE TRANSFORMERS 261219-3
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022
rated voltage for de-energized tap changing operation. Limit transformer surface temperature rise to maximum of 65 C above a 30 C ambient.

C. The dielectric coolant shall be listed less-flammable fluid meeting the requirements of National Code Section 450-23, including a minimum fire point of 300 C. The fluid shall be biodegradable, non-toxic, and non-bioaccumulating. It shall be Factory Mutual Approved and UL Classified. Provide Envirotemp FR3 fluid, no known equal.

D. Equip sealed transformer tank with drain valve and sampling device, liquid level gage, automatic pressure relief device, grounding block, and top liquid dial type thermometer.

Provide steel enclosure with side hinged, removable weather resistant cover, with hinged lift-off cabinet doors capable of locking. The high voltage compartment fastenings shall not be accessible until the low voltage door has been opened. Unit shall be provided with three universal bushing wells for connection of separable insulated elbows and inserts on the primary. Provide a parking stand and insulated parking bushing for each primary bushing well. Provide with low voltage spade type bushings suitable for vertical cable take off. Provide with a high voltage/low voltage compartment barrier. Apply manufacturer's standard enamel over cleaned and phosphatized steel enclosure.

Provisions for tank grounding shall be provided for in both the high and low voltage compartments.

E. The transformer primary shall be furnished with a loadbreak Bay-O-Net assembly with a flapper valve to minimize liquid spillage. Overcurrent protection shall be provided by a Bay-O-Net expulsion fuse mounted in series with a partial range under-liquid ELSP current limiting fuse with the combination providing a minimum interrupting rating of 50,000 amperes.

F. Provide transformer with internal on-off gang operated under oil load break switch connected between the primary bushings and the primary fuses. Locate operating handle and nameplate indicating the switch positions shall be located in the high voltage compartment. This switch shall allow de-energization of the transformer from the primary source.

G. Finishes: Coat interior and exterior surfaces of transformer, including bolted joints, with manufacturer's standard color baked-on enamel.

PART 3 - EXECUTION

3.01 INSTALLATION OF TRANSFORMERS
A. Install transformers as indicated, in accordance with manufacturer's written instructions, applicable requirements of CEC, NEMA, ANSI, and IEEE standards, and recognized industry practices to ensure that products fulfill requirements.

B. Prior to energization of circuitry, perform each visual and mechanical inspection and electrical test stated in InterNational Electrical Testing Association (NETA) “Acceptance Testing Specifications for Electrical Power Distribution Equipment and Systems”, 2007

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MEDIUM-VOLTAGE TRANSFORMERS 261219-4
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022
Edition, Section 7.2.2. Energize primary circuit at rated voltage and frequency from normal power source and measure primary and secondary voltages for proper tap settings.

Record values and include in Operating and Maintenance instructions.

C. Perform insulation-resistance tests winding-to-winding and each winding-to-ground with minimum 1000 Vdc for one minute. Results shall be temperature corrected when readings are performed in other than a 64 F - 72 F ambient environment. Compare with manufacturer's test data. Record values and include in Operating and Maintenance instructions.

D. When requested by Engineer, perform sound level measurements to demonstrate audible sound levels are in compliance with requirements.

E. Coordinate transformer installation work with electrical raceway and wire/cable work as necessary for proper interface. Provide reinforced concrete equipment pads.

F. Connect transformer units to electrical wiring system. Connection to transformers from overhead shall be made with flexible steel conduit. Comply with requirements of other Division 16 sections.

G. Grounding: Provide system and equipment grounding and grounding connections, sufficiently tight to assure permanent and effective ground, for transformers as indicated.

END OF SECTION

DRAFT - NOT FOR CONSTRUCTION
SWITCHBOARDS 262413-1
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022
SECTION 262413 SWITCHBOARDS
PART 1 - GENERAL

1.01 SECTION INCLUDES
A. Extent of switchboards is indicated by Drawings, schedules, and one-line diagram. Types of switchboards in this section include distribution circuit breaker style.

1.02 QUALITY ASSURANCE
A. Firms regularly engaged in manufacture of switchboards of types and ratings required, whose products have been in satisfactory use in similar service for not less than five years.

B. California Electrical Code (CEC) Compliance: Comply with CEC as applicable to construction and installation of electrical switchboards.

C. Nationally Recognized Testing Laboratory (NRTL) Compliance and Labeling: Comply with safety standards pertaining to switchboards and provide products and components that have been listed and labeled by an NRTL such as UL or equal. UL Labels: Provide switchboards that have been UL listed and labeled under UL 891 "Dead-Front Electrical Switchboards."
D. ANSI/IEEE Compliance: Comply with ANSI/IEEE standards pertaining to switchboard assemblies.

E. NEMA Compliance: Comply with applicable portions of NEMA Standards No. PB 2, "Dead-Front Distribution Switchboards," and No. PB 2.1, "Instructions for Safe Handling, Installation, Operation, and Maintenance of Switchboards."

1.03 SUBMITTALS
A. Product Data: Submit manufacturer's data on switchboards. Data shall include, but not be limited to; voltages, number of phases, frequency, and short-circuit and continuous current ratings. Provide manufacturer's application data for main and branch circuit breakers section, main bus, insulation level, and fixed-position main and distribution circuit breakers including ground fault protection and circuit breaker trip curves.

B. Shop Drawings: Submit dimensioned drawings of switchboard showing minimum clearances, conductor entry provisions, gutter space, installed features and devices, and material lists for each switch. Include the following:

1. Enclosure types and details.

2. Bus configuration, current, and voltage ratings.

3. Short-circuit current rating of switchboards and overcurrent protective devices.

DRAFT - NOT FOR CONSTRUCTION
SWITCHBOARDS 262413-2
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022

4. Features, characteristics, ratings, and factory settings of individual overcurrent protective devices and auxiliary components.

5. Wiring Diagrams: Power, signal, and control wiring.

6. Nameplate legend.

7. Submit certification that switchboards and components will remain in place without separation of any parts from the device when subjected to the seismic forces specified and the unit will be fully operational after the seismic event. The specified seismic forces shall be as indicated in California Building Code Seismic Zone 4.

Identify center of gravity and locate and describe mounting and anchorage provisions.

C. Operation and Maintenance Manuals: Submit manufacturer's printed instruction information, recommended renewal parts list, insulation resistance measurements, and include information required in 1.03A and 1.03B. Include Manufacturer's written instructions for testing and adjusting overcurrent protective devices and Manufacturer's final assembly and testing report. Provide time-current curves, including selectable ranges for each type of overcurrent protective device.

D. Field quality-control test reports: Submit test procedures used, test results that comply with requirements, and results of failed tests and corrective action taken to achieve test results that comply with requirements.

PART 2 - MATERIALS

2.01 ACCEPTABLE MANUFACTURERS
A. Manufacturers: Subject to compliance with requirements, provide switchboards as manufactured by Schneider Electric Co., Siemens, or equal.

2.02 GENERAL
A. Except as otherwise indicated, provide switchboards of types, sizes, characteristics, voltages, and ampere ratings indicated, that comply with manufacturer's standard design, materials, components, and construction, which are in accordance with published product information, and are as required for a complete installation.

B. Provide front-connected, front-accessible switchboard with fixed, individually-mounted main device, group-mounted branch devices, and sections rear aligned.

C. Equip switchboards exposed to outdoor temperatures and humidity with an internal heater.

Equip with factory-installed electric space heaters of sufficient wattage in each vertical section to maintain enclosure temperature above expected dew point. Power source shall be from a 120 volt external branch circuit. Provide thermostat within enclosure to control heater.

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SWITCHBOARDS 262413-3
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022

2.03 EQUIPMENT SECTIONS AND COMPONENTS
A. AC Dead-Front Distribution Switchboards: The switchboards shall be floor-mounted, self-supporting dead front and rear, front operated, manufactured complete with all parts.

Group mounted breakers shall not require any additional external mounting hardware. All fittings and equipment, including buses for group, fixed position, or draw-out, shall be included. Provide padlocking provisions at each circuit breaker; barriers; terminals; top hats for feeder bus duct and multiple conduit and conductor entries; nameplates; wiring; and connections as required. Provide thermal magnetic, ground fault, solid state circuit breakers where indicated. Switchboards shall be rated for 480Y/277 volt, 3-phase, 4-wire distribution, with ampacity as indicated. Switchboards shall have ground fault interrupting or ground fault monitoring and alarm on main and distribution circuit breakers complete with all accessories, where indicated on the one-line diagram.

B. Enclosures and Mounting: The enclosures shall be sized as shown on the drawings with minimum height of 90 inches. Enclosures shall be fabricated of cold rolled steel on a structural shape or formed steel frame and ends shall be mounted on continuous channel iron sills closed on the ends. Mounting channels shall have holes provided with maximum diameter 1/8" larger than anchor bolts. Diameters of required anchor bolts are as indicated on drawings for installation of switchboards. All parts and materials shall be furnished by the switchboard manufacturer. Complete switchboard shall have a short circuit current withstand rating of 65,000, or as indicated on the Drawings. Switchboards located in damp or wet locations shall be housed in a NEMA 3R enclosure. The enclosure shall be treated with a phosphate pretreatment and painted in ANSI #49 medium light gray baked enamel. Supply each switchboard with one can of matching aerosol spray paint for touchup after installation.

C. Busing: All the bus bars shall be 90% conductivity silver or tin plated hard drawn copper and shall be bused for the full continuous load. Busing shall extend to all spares and spaces. Bus connectors and breaker mounting brackets shall be provided to all circuit breakers and spaces for future circuit breakers. All bus bar connections shall be bolted with conical washers. Bus bars shall be accurately formed and all holes made in a manner permitting bus bars and connections to be fitted into place without being forced. Bus bars and connections shall be provided with silver plated contact surfaces. Switchboards and buses shall have provisions for adding full bus capacity sections. Provide minimum 1/4” x 2” hard-drawn copper ground bus of 98% conductivity, equipped with pressure connectors for feeder and branch-circuit ground conductors in main and distribution sections. Provide neutral disconnect link using uninsulated copper bus, arranged to connect neutral bus to ground bus.

D. Energy-Reducing Maintenance Switching: Provide an energy-reducing maintenance mode On/Off switch that allows a worker to reduce the clearing time for the associated circuit breaker. Switch shall have visual local status indicator and be lockable in the On position. Circuit breaker clearing time shall be reduced to less than 80ms.

E. Metering: Provide a demand meter to monitor phase voltage, line-to-neutral voltage, current, real power per phase and total, reactive power per phase and total, and apparent

DRAFT - NOT FOR CONSTRUCTION
SWITCHBOARDS 262413-4
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022
power per phase and total. Meter shall display present values and maintain a record of the peak values for each power and current value monitored. Include current transformer with shorting type terminal blocks for input to the meter.

F. Nameplates: Engraved screw on laminated plastic nameplates with black face/white lettering shall be provided at the top center of the switchboard indicating the switchboard designation and operating voltage. A similar nameplate shall be installed adjacent to each circuit breaker indicating the equipment or panel that each controls.

2.04 CIRCUIT BREAKERS
A. Except as otherwise indicated, provide circuit breakers and ancillary components of types, sizes, ratings, and electrical characteristics indicated, which comply with manufacturer's standard design, with materials, components, and construction according to published product information and as required for a complete installation.

B. The switchboard circuit breakers shall be rated to interrupt the symmetrical short circuit current indicated on the Drawings.

C. Both the main breaker and the distribution circuit breakers shall be molded case air breakers, quick-make, quick-break, trip-free, thermal magnetic type except where solid state, fixed position or draw-out type circuit breakers, with ratings and quantity of poles, are indicated on the drawings. The operating handle or electrical controls of the circuit breaker shall open and close all poles of a multipole breaker simultaneously and be trip indicating. Each circuit breaker shall have provisions for padlocking in "OFF" position.

The breakers shall meet NEMA and/or UL specifications and shall be NRTL labeled.

Provide integrally mounted ground-fault protection consisting of an integrally mounted relay and trip unit with adjustable pickup and time-delay settings, push-to-test feature, and ground-fault indicator. Circuit breaker trip settings shall be per the recommendations of the coordination study as specified in section 260573.

D. Group Mounted Circuit Breakers: Provide as indicated group mounted branch circuit breakers mounted on a common pan or rail assembly. The interior shall have three flat mounted bus bars, one per phase, stacked and aligned vertically with glass reinforced polyester insulators laminated between phases. The molded polyester insulators shall support and provide phase isolation to the entire length of the bus. The complete assembly shall be contained between two steel channels permanently secured to a galvanized mounting pan by tamper-resistant fasteners. Circuit breakers shall require no additional external mounted hardware and shall be held in place by a self-contained bracket secured to the mounting pan. Circuit breakers of different frame sizes shall be capable of being mounted across from each other without means of a common bracket.

E. Solid State Circuit Breakers: Provide electronic trip-unit circuit breakers with RMS sensing, and field-replaceable rating plug. Include with the following field-adjustable settings:

1. Instantaneous trip.

DRAFT - NOT FOR CONSTRUCTION
SWITCHBOARDS 262413-5
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022

2. Long-time pickup levels.

3. Long-time time adjustments.

4. Ground-fault pickup level, time delay, and I2t response.

F. Ground Fault Protection and Indication: Provide integral solid state ground fault protection and indication on breakers of types and ratings indicated.

G. Furnish portable test set to test functions of solid-state trip devices without removal from switchboard. Include relay and meter test plugs suitable for testing switchboard meters and switchboard class relays.

PART 3 - EXECUTION

3.01 DELIVERY, STORAGE, AND HANDLING
A. Prior to delivery to the Project site, ensure that suitable storage space is available to store materials in a well-ventilated area protected from weather, moisture, soiling, extreme temperatures, humidity, and corrosive atmospheres. Materials shall be protected during delivery and storage and shall not exceed the manufacturer stated storage requirements.

As a minimum, store indoors in clean, dry space with uniform temperature to prevent condensation. In addition, protect electronics from all forms of electrical and magnetic energy that could reasonably cause damage.

B. Deliver materials to the Project site in supplier’s or manufacturer’s original wrappings and containers, labeled with supplier’s or manufacturer’s name, material or product brand name, and equipment tag number or service name as identified within the Contract Documents.

C. Inspect and report any concealed damage or violation of delivery storage, and handling requirements to the Engineer.

3.02 INSTALLATION OF SWITCHBOARDS
A. Install new switchboards as indicated, according to manufacturer's written instructions, and with recognized industry practices, complying with applicable requirements of CEC, NEMA's Stds Pub/No. PB 2.1, and NECA's "Standard of Installation." B. Seismic Restraints and Anchorage: Seismic restraints and anchorage for all switchboards shall comply with the requirements of the California Building Code. Mount switchboards on 1-1/2 inch high raised reinforced concrete equipment pads or at height as indicated.

Coordinate equipment configuration to ensure that the height to the center of the grip on the operating handle of any device does not exceed 6'7" above finish floor. Edge distances from switchboard shall be minimum of ten anchor bolt diameters to the edge of the concrete pad. Refer to tables, details, and seismic notes on Drawings.

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SWITCHBOARDS 262413-6
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022
C. Adjust and Clean: Adjust operating mechanisms for free mechanical movement. Touch up scratched or marred surfaces to match original finish. Adjust all breaker and relay settings, including instantaneous, ground fault pickup and delay, and long-time settings as required for each breaker per coordination study prior to energizing.

D. Grounding: Provide transformer grounding and equipment grounding and connections sufficiently tight to assure a permanent and effective ground, for switchboards and grounds to subfed transformers, distribution panels, and panelboards.

3.03 FIELD QUALITY CONTROL
A. Perform tests and inspections and prepare test reports.

1. Prior to energization of circuitry: Perform each visual and mechanical inspection and electrical test stated in ANSI/NETA - ATS 2009 “Acceptance Testing Specifications for Electrical Power Distribution Equipment and Systems”, section

7.1. Check for electrical continuity of circuits and for short circuits. Verify that manual transfer warnings are properly placed. Inspect for physical damage, proper installation and connection, and integrity of barriers, covers, and safety features.

Measure insulation resistance phase-to-phase and phase-to-ground with insulation resistance tester. Include external annunciation and control circuits. Use test voltages and procedure recommended by manufacturer. Comply with manufacturer's specified minimum resistance.

2. Ground-Fault Tests: Perform ground-fault tests to demonstrate compliance with requirements. Verify grounding connections, locations, and ratings of sensors.

Indicated as left settings in report.

B. Report results of tests and inspections in writing. Record adjustable relay settings, measured insulation, and contact resistances and time delays. Attach a label or tag to each tested component indicating satisfactory completion of tests.

C. Remove and replace malfunctioning units and retest as specified above.

D. Before acceptance of equipment, instruct the Owner’s maintenance and operating staff in the operation and maintenance of this equipment. Complete written instructions manuals, operating schedules, parts lists, blueprints, wiring diagrams, maintenance and repair manuals, shall be submitted to the Engineer before final approval. The foregoing tests and associated work shall be provided without additional cost to the Owner.

END OF SECTION

DRAFT - NOT FOR CONSTRUCTION
WIRING DEVICES 262726-1
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022
SECTION 262726 WIRING DEVICES
PART 1 - GENERAL

1.01 SECTION INCLUDES
A. The extent of wiring device work is indicated by Drawings and as specified herein.

B. Types of electrical wiring devices in this Section include receptacles, switches, faceplates, plugs and plug connectors, and accessories.

1.02 QUALITY ASSURANCE
A. Manufacturers: Firms regularly engaged in manufacture of wiring devices of types, materials, and sizes required, whose products have been in satisfactory use in similar service for not less than three years.

B. Nationally Recognized Testing Laboratory (NRTL) Compliance and Labeling: Comply with safety standards pertaining to electrical wiring devices and provide products and components that have been listed and labeled by an NRTL such as UL or equal.

C. NEMA Compliance: Comply with NEMA standards for general and specific purpose wiring devices.

D. California Electrical Code (CEC) Compliance: Comply with CEC as applicable to construction and installation of electrical wiring devices.

1.03 SUBMITTALS
A. Product Data: Submit manufacturer's data on electrical wiring devices and faceplates including color selections for all devices. Identify proposed wiring devices by manufacturer’s catalog numbers.

PART 2 - MATERIALS

2.01 GENERAL
A. Provide factory-fabricated wiring devices in types, colors, and electrical ratings for applications indicated and complying with NEMA Standards Publication No. WD 1.

Provide ivory color devices except where otherwise indicated. Verify color selections with Engineer.

2.02 RECEPTACLES
A. Ground-Fault Circuit-Interrupter (GFCI) Receptacles: GFCI receptacles shall be duplex, three-wire, NEMA 5-15R or 5-20R, 125-volt, parallel slot, weather resistant, polarized

DRAFT - NOT FOR CONSTRUCTION
WIRING DEVICES 262726-2
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022
where indicated, in ivory color. GFCI receptacles shall be 20A feed-through type, capable of protecting connected downstream receptacles on single circuit, grounding type ULrated Class A, 60 Hz, with solid state ground fault sensing and signaling, with 4-6 milliamperes ground fault trip level. 15 amp devices shall be Hubbell GFR5262SGI, Leviton G5262-WTI, or equal. NEMA 5-20R receptacles shall be Hubble GFR5362SGI, Leviton G5362-WTI, or equal.

2.03 FACEPLATES
A. Faceplates: Provide single switch and duplex outlet faceplates for wiring devices of types and sizes and with ganging and cutouts as indicated.

B. Damp and Wet locations: Receptacle and switch covers shall be cast metal NEMA 3R wet location labeled plate. Receptacle covers shall be provided with cover hood that maintains a weatherproof rating with the attachment plug cap inserted or removed. Cover hood shall be identified as 'extra duty' and shall be capable of being locked in the closed position with a padlock.

C. Available Manufacturers: Subject to compliance with requirements, manufacturers offering faceplates that may be incorporated in the work include Hubbell, Leviton, or equal.

PART 3 - EXECUTION

3.01 INSTALLATION OF WIRING DEVICES
A. Install wiring devices as indicated, in compliance with manufacturer's written instructions and with applicable requirements of CEC and of the NECA "Standard of Installation" and in accordance with recognized industry practices to fulfill project requirements.

B. Coordinate with other work, including painting, electrical box and wiring work, as necessary to interface installation of wiring devices with other work.

C. Install wiring devices only in electrical boxes that are clean and free from building materials, dirt, and debris.

D. Delay installation of wiring devices until wiring work is completed.

3.02 ADJUST AND CLEAN
A. Ensure proper and cautious use of convenience outlets, if used during construction. At time of Substantial Completion, replace those items that have been damaged, including those burned and scorched by faulty plugs.

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WIRING DEVICES 262726-3
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022

3.03 FIELD QUALITY CONTROL
A. Prior to energizing circuitry, test wiring devices for electrical continuity and proper polarity connections. After energizing circuitry, test wiring devices to demonstrate compliance with requirements.

END OF SECTION

DRAFT - NOT FOR CONSTRUCTION
ENCLOSED SWITCHES AND CIRCUIT BREAKERS 262816-1
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022
SECTION 262816 ENCLOSED SWITCHES AND CIRCUIT BREAKERS
PART 1 - GENERAL

1.01 SECTION INCLUDES
A. Extent of enclosed switch and circuit breaker work is indicated by Drawings and schedules.

B. Types of enclosed switch work in the Section include equipment disconnects, appliance disconnects, and motor circuit disconnects.

C. Types of enclosed circuit breaker work in this Section include individually enclosed molded case thermal magnetic circuit breakers.

1.02 QUALITY ASSURANCE
A. Manufacturers: Firms regularly engaged in manufacture of enclosed switches and circuit breakers of types, sizes, and ratings required, whose products have been in satisfactory use in similar service for not less than five years.

B. Nationally Recognized Testing Laboratory (NRTL) Compliance and Labeling: Comply with safety standards pertaining to enclosed switches, circuit breakers and enclosures and provide products and components that have been listed and labeled by an NRTL such as UL or equal. Comply with applicable requirements of UL 98, "Enclosed and Dead-Front Switches and UL 489, "Molded Case Circuit Breakers and Circuit Breaker Enclosures." C. NEMA Compliance: Comply with requirements of NEMA Standards Publication Nos.

KS 1, "Enclosed Switches," and 250, "Enclosures for Electrical Equipment (1000 Volts Maximum)." Comply with applicable requirements of NEMA Standards Pub No. AB 1, AB 2 and SG 3 pertaining to molded case circuit breakers.

D. California Electrical Code (CEC) Compliance: Comply with CEC as applicable to construction and installation of enclosed switches and circuit breakers.

1.03 SUBMITTALS
A. Product Data: Submit manufacturer's data on enclosed switches and circuit breakers required, including: voltages and current ratings, interrupting ratings, current limitations, time current trip characteristic curves, number of poles, and mounting requirements.

B. Operation and Maintenance Data: Submit manufacturer's printed operation and maintenance data. Include data on as installed fuses for fused safety switches and thermal overload ratings for manual starting switches.

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ENCLOSED SWITCHES AND CIRCUIT BREAKERS 262816-2
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022
PART 2 - MATERIALS

2.01 ACCEPTABLE MANUFACTURERS
A. Manufacturer: Subject to compliance with requirements, provide products as manufactured by General Electric Co., Schneider Square D Co., Eaton, or equal.

2.02 FABRICATED SWITCHES
A. Disconnect Switches: Provide surface mounted, heavy duty type, fused or non-fused, sheet steel enclosed switches of types, sizes, and electrical characteristics indicated, rated 600 volts, 60 hertz, with number of poles indicated, incorporating spring assisted, quick make, quick break switches that are so constructed that switch blades are visible in OFF position with door open. Equip with operating handle that is integral part of enclosure base, has easily recognizable operating position, and is capable of being padlocked in OFF position. Construct current carrying parts of high conductivity copper, with silver tungsten type switch contacts and stamped enclosure knockouts. Provide NEMA 1 type enclosure.

For outdoor, wet, and damp locations, provide NEMA 3R type enclosure. Provide fuses for safety switches as indicated or as recommended by switch manufacturer, of classes, types, and ratings needed to fulfill electrical requirements for service indicated and equipment connected.

2.03 MANUAL MOTOR STARTER SWITCHES
A. 600 VAC fractional HP size 0 manual starters with overload protection: Provide manual single-phase fractional HP manual motor starters of sizes and ratings indicated. Equip with manually operated quick-make, quick-break toggle mechanisms and with one-piece melting alloy type thermal units. Starter shall become inoperative when thermal unit is removed. Provide starters with double break silver alloy contacts visible from both sides of starter and switch capable of being padlocked in the open or closed position. Enclose starter unit in NEMA Type 4 enclosure for surface mounting. Provide with pushbutton operator. Enclosure shall be provided with manufacturer's standard color finish.

B. 600 VAC fractional HP manual motor switches without overload protection: Provide manual single-phase fractional HP manual motor switches of sizes and ratings indicated.

Equip with manually operated quick-make, quick-break toggle mechanisms. Provide starters with double break silver alloy contacts visible from both sides of starter and switch capable of being padlocked in the open or closed position. Enclose starter unit in NEMA Type 1 enclosure for indoor dry locations and NEMA Type 4 enclosure for damp or wet locations. Enclosure shall be surface mounted and provided with manufacturer's standard color finish.

2.04 600 VOLT CIRCUIT BREAKERS
A. General: Except as otherwise indicated, provide circuit breakers and ancillary components of types sizes, ratings, and electrical characteristics indicated which comply with manufacturer's standard design, materials, components, and construction in accordance with published product information and as required for a complete installation. Provide

DRAFT - NOT FOR CONSTRUCTION
ENCLOSED SWITCHES AND CIRCUIT BREAKERS 262816-3
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022
State of California approved lock-offs on all manually operated circuit breakers for padlocking in the "OFF" position. Provide surface or recessed mounted enclosures for separately mounted circuit breakers where indicated. Circuit breakers shall be factory sealed and shall have date code on circuit breaker face. Provide breakers with mechanical screw type removable connector lugs for use with copper conductors. Circuit breakers serving mechanical equipment shall be HACR rated.

B. Molded Case Thermal Magnetic Circuit Breakers: Provide factory-assembled, molded case circuit breakers of frame size and number of poles as indicated. Circuit breakers shall be constructed using glass reinforced insulating material providing superior dielectric strength. Current-carrying components shall be completely isolated from the handle and accessory mounting area. Provide breakers with permanent thermal and instantaneous magnetic trips in each pole and with fault current protection and ampere ratings as indicated. Construct with overcenter, trip free, toggle type operating mechanisms with quick-make, quick-break action and positive handle trip indication. Construct breakers for mounting and operating in any physical position and operating in an ambient temperature of 40ºC. All circuit breakers shall have an AIC rating matching the panel in which the breakers are installed.

C. Switch and Circuit Breaker Enclosures: Enclosures for circuit breakers shall be NEMA 1 in dry locations and NEMA 3R in damp and wet locations unless otherwise indicated on the Drawings.

PART 3 - EXECUTION

3.01 INSTALLATION OF ENCLOSED SWITCHES AND CIRCUIT BREAKERS A. Install enclosed switches and circuit breakers as indicated, in accordance with manufacturer's written instructions, applicable requirements of CEC, and NEMA, and the NECA "Standard of Installation," and with recognized industry practices to ensure that products fulfill requirements.

B. Coordinate with other work, including electrical raceway and wiring work, as necessary to interface installation of product with other work.

C. Fasten enclosed switches and circuit breakers without causing mechanical stresses, twisting, or misalignment to be exerted by clamps, supports, or cabling. Verify tightness of bolted electrical connections by calibrated torque wrench according to manufacturer's published data.

D. Install disconnect switches used with motor-driven appliances and motors and controllers within sight of controller position unless otherwise indicated.

E. Set field adjustable circuit breakers for trip settings to coordinate with upstream and downstream circuit breakers, subsequent to installation of units.

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ENCLOSED SWITCHES AND CIRCUIT BREAKERS 262816-4
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022

3.02 ADJUST AND CLEAN
A. Inspect enclosed switch and circuit breaker operating mechanisms for malfunctioning and, where necessary, adjust units for free mechanical movement

3.03 FIELD QUALITY CONTROL
A. Perform tests and inspections and prepare test reports. Prior to energization of circuitry:

Perform each visual and mechanical inspection and electrical test stated in InterNational Electrical Testing Association (NETA) “Acceptance Testing Specifications for Electrical Power Distribution Equipment and Systems”. Check for electrical continuity of circuits and for short circuits. Verify that manual transfer warnings are properly placed. Inspect for physical damage, proper installation and connection, and integrity of barriers, covers, and safety features. Measure insulation resistance phase-to-phase and phase-to-ground with insulation resistance tester. Comply with manufacturer's specified minimum resistance.

B. Report results of tests and inspections in writing. Record measured insulation, and contact resistances.

END OF SECTION

DRAFT - NOT FOR CONSTRUCTION
STANDBY GENERATOR AND ACCESSORIES 263213-1
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022
SECTION 263213 STANDBY GENERATOR AND ACCESSORIES
PART 1 - GENERAL

1.01 SECTION INCLUDES
A. Extent of emergency generator work is indicated by Drawings and schedules. This section specifies the requirements for the design, manufacture, testing, delivery, installation, and testing of one 1250kW, 1562.5kVA, 480Y/277V, 60Hz, 0.8P.F. diesel engine driven generators and accessories. The generator power shall be applied for standby continuous electrical service during interruption of normal power. The generator shall include all unit mounted controls, protection, wiring, enclosure, and accessories for automatic start-stop operation.

1.02 QUALITY ASSURANCE
A. The authorized dealer of the manufacturer shall have qualified factory representatives in the area and have a parts and service facility within a 150 mile radius of the job site and be on call 24 hours per day, 365 days per year. The authorized dealer be capable of providing training, parts and emergency repairs and shall guarantee parts availability within 48 hours.

B. CEC Compliance: Comply with applicable standby generator requirements of CEC including but not limited to standby power generating systems as described in Article 700.

C. NFPA Compliance: Comply with applicable requirements of the 2015 Edition of NFPA 37, "Installation and Use of Stationary Combustion Engines and Gas Turbines", and the 2016 Edition of NFPA 110, "Emergency and Standby Power Systems." D. NRTL Compliance: Provide generator listed to UL 2200. Battery charger shall be listed to UL 1236. Control system shall be listed to UL 508. All other components shall be NRTL listed and/or labeled.

E. ANSI/NEMA Compliance: Comply with requirements of ANSI/NEMA MG 1, "Motors and Generators," and MG 2, "Safety Standard for Construction and Guide for Selection, Installation, and Use of Electric Motors and Generators." F. IEEE Compliance: Comply with 1995 IEEE Std 446, "IEEE Recommended Practice for Emergency and Standby Power Systems for Industrial and Commercial Applications." G. Noise Emission: Comply with applicable state and local government requirements for maximum noise level at adjacent property boundaries due to sound emitted by generator set including engine, engine exhaust, engine cooling-air intake and discharge, and other components of installation.

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STANDBY GENERATOR AND ACCESSORIES 263213-2
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022
H. The generator set shall comply with Tier 2 emissions limit of U.S. EPA New Source Performance Standards for stationary non-emergency engines under the provisions of 40 CFR 60 Subpart IIII when tested per ISO8178 D2.

1.03 SUBMITTALS
A. Component List: Submit a breakdown of all components and options including, enclosure, exhaust silencer and connections to engine, booster heaters, booster fans, seismic spring isolators, and fuel piping.

B. Engine: Submit manufacturer produced generator set specification or data sheets identifying make and model of engine including: type, aspiration, compression ratio, and combustion cycle; bore, stroke, displacement, and number of cylinders; engine lubricating oil capacity; engine coolant capacity without radiator; engine coolant capacity with radiator; coolant pump external resistance (maximum); and coolant pump flow at maximum resistance.

C. Generator: Submit manufacturer produced generator set specification or data sheets identifying make and model of generator including frame, insulation class, number of leads, total weight including all liquids, rotor weight, air flow, and efficiency at 0.8 power factor for 50%, 75%, 100% load. Submit time constants for short circuit transient (T'D) and armature short circuit (TA). Submit reactance for subtransient - direct axis (X'D), transient - saturated (X'D), synchronous - direct axis (XD), negative sequence (X2), zero sequence (X0), and fault current, 3 phase symmetrical.

D. Radiator: Submit manufacturer produced generator set specification or data sheets identifying make and model of radiator fan drive ratio, fan power, air flow, sound at 23 ft. and at property line, radiator coolant capacity, and radiator/engine coolant capacity.

E. System Performance: Based on SAE J1349 standard conditions of 29.61"Hg and 77 F; also at conditions of ISO 3046/1, DIN 6271 and BS 5514. Provide kW and kVA power rating at 0.8 power factor, exhaust gas stack temperature, combustion air inlet flow rate, exhaust gas flow rate, exhaust system backpressure (maximum), heat rejection to coolant and exhaust, heat radiated from engine, heat rejection from generator, and fuel consumption at 25%, 50%, 75%, and 100% load. Also provide transient response of frequency and voltage for the generator set when imposing block load changes from 0% to 25%, 0% to 50%, 0% to 75%, 0% to 100%, 100% to 0%, 75% to 0%, 50% to 0%, and 25% to 0%.

F. Auxiliary Equipment: Specification or data sheets, including, but not limited to, acoustic enclosure, exhaust silencer, exhaust bellow, booster heaters, booster fans, batteries, battery charger, shore power panel, enclosure luminaires, enclosure convenience receptacles, seismic spring isolators, fuel line solenoid valves and controls, and generator governor and associated controls.

DRAFT - NOT FOR CONSTRUCTION
STANDBY GENERATOR AND ACCESSORIES 263213-3
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022
G. Drawings: General dimensioned drawings and all accessories showing overall generator set and enclosure measurements, mounting location, and interconnect points for load leads, starter governor, remote controls, and alarm monitoring, fuel, exhaust, and cooling.

H. Wiring Diagrams: Wiring diagrams published by the manufacturer in Joint Industrial Council (JIC) format for controls, remote controls, and alarms, and switchgear showing interconnected points and logic diagrams for use by contractor and owner.

I. Manufacturer's Seismic Qualification Certification: Submit certification that enclosure, engine-generator set, and components will withstand seismic forces as defined in ASCE 7 per the California Building Code. Provide outline drawings that identify the center of gravity and location and description of mounting and anchorage provisions.

J. Warranty Statements: Warranty verification published by the manufacturer. Provide manufacturer's five year warranty for the generator set.

K. Service: Location and description of supplier's parts and service facility including parts inventory and number of qualified generator set service personnel.

L. Service Manuals and Parts Books: The system manufacturer's authorized local dealer shall furnish three (3) copies each of the manuals and books for each unit under this contract.

All manuals and books shall be contained in 3-ring binders and contained in rigid plastic pouches. The following information shall be provided: operating Instructions: Include description and illustration of all switchgear controls and indicators and engine and generator controls; parts books that illustrate and list all assemblies, subassemblies and components, except standard fastening hardware (nuts, bolts, washers, etc.); preventative maintenance instructions for complete system that cover daily, weekly, monthly, biannual, and annual maintenance requirements and include a complete lubrication chart; routine test procedures for all electronic and electrical circuits and for the main AC generator; troubleshooting chart covering the complete generator set showing description of trouble, probable cause, and suggested remedy; recommended spare parts list showing all consumables anticipated to be required during routine maintenance and test; and wiring diagrams and schematics showing function of all electrical components.

1.04 SYSTEM DESCRIPTION
A. The generator set shall include the capability of automatically controlling generator set operation. After starting, the unit shall attain rated speed and voltage, and accept rated load. Generator set speed shall be controlled by the engine governor, while generator output voltage regulation shall be a function of the generator automatic voltage regulator.

Manual adjustment of generator speed and voltage shall be provided.

B. The engine fuel system shall be supplied to operate on diesel fuel.

C. Starting and stopping sequence shall be initiated manually or automatically by closing and opening of a contact.

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STANDBY GENERATOR AND ACCESSORIES 263213-4
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022
D. The set shall immediately shut down in the event of overspeed, low oil pressure, high water temperature and overcrank. Cause of shutdown shall be indicated at generator. In addition, a common failure alarm shall be reported to the on-site PLC. System logic shall prevent restart until fault is cleared.

1.05 SYSTEM PERFORMANCE
A. Rating: Engine brake horsepower shall be sufficient to deliver full rated generator set kW/kVA when operated at rated rpm and equipped with all engine-mounted parasitic and external loads such as radiator fans and power generators.

B. Start Time and Load Acceptance: Engine shall start, achieve rated voltage and frequency, and accept load within 10 seconds after a utility outage.

C. Block Load Acceptance: Transient response shall conform to ISO 8528 requirements.

1.06 PARTS AVAILABILITY
A. The generator set supplier shall have sufficient parts inventory to maintain over the counter availability of at least 90% of any required parts.

PART 2 - MATERIALS

2.01 ACCEPTABLE MANUFACTURERS
A. Manufacturers: The engine, cooling system, radiator, fuel system solenoid valves, and generator shall be the product of one manufacturer who has been regularly engaged in the production of complete generating systems for at least thirty years. Generator sets shall be as manufactured by Cummins, or equal

2.02 ENGINE
A. Fuel: ASTM D975 #2 diesel fuel.

B. The engine shall be a stationary, liquid cooled, 1800 rpm, four cycle design, V-type, with dry exhaust manifolds. It shall have 6 cylinders with minimum displacement of 8.9 liters.

It shall not be manufactured with any Class I ozone depleting substances (ODS) as defined by Federal Register Vol 57 No. 86.

C. The engine shall be equipped with air filters, fuel filters and pressure gauge, lubricating oil cooler, filters, and pressure gauge, water pump and temperature gauge, service hour meter, flywheel, and flywheel housing when applicable.

D. The source of fuel for the system shall be diesel. Include carburetor, fuel solenoid valves, and flexible fuel connectors.

DRAFT - NOT FOR CONSTRUCTION
STANDBY GENERATOR AND ACCESSORIES 263213-5
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022

2.03 GOVERNOR
A. Adjustable isochronous, with speed sensing. The governing system dynamic capabilities shall be controlled as a function of engine coolant temperature to provide fast, stable operation at varying engine operating temperature conditions. The control system shall actively control the fuel rate as appropriate to the state of the engine generator. Fuel rate shall be regulated as a function of starting, accelerating to start disconnect speed, accelerating to rated speed, and operating in various isochronous states. 2.04 CONTROL AND MONITORING
A. Engine generator control shall be microprocessor based and provide automatic starting, monitoring, protection and control functions for the unit.

B. Automatic Starting System Sequence of Operation: When mode-selector switch on the control and monitoring panel is in the automatic position, remote-control contacts in one or more separate automatic transfer switches initiate starting and stopping of generator set. When mode-selector switch is switched to the on position, generator set starts. The off position of same switch initiates generator-set shutdown. (Switches with different configurations but equal functions are acceptable.) When generator set is running, specified system or equipment failures or derangements automatically shut down generator set and initiate alarms. Operation of the local (generator set-mounted) and/or remote emergency-stop switch also shuts down generator set.

C. Manual Starting System Sequence of Operation: Switching on-off switch on the generator control panel to the on position starts generator set. The off position of same switch initiates generatorset shutdown. When generator set is running, specified system or equipment failures or derangements automatically shut down generator set and initiate alarms. Operation of the local (generator set-mounted) and/or remote emergency-stop switch also shuts down generator set.

D. Configuration: Operating and safety indications, protective devices, system controls, engine gages and associated equipment shall be grouped in a common control and monitoring panel. Mounting method shall isolate the control panel from generator-set vibration. AC output power circuit breakers and other output power equipment shall not be mounted in the control enclosure.

E. Indicating and protective devices and controls including the following:

1. AC voltmeter (3-phase, line to line and line to neutral values).

2. AC ammeter (3-phases).

3. AC frequency meter.

4. AC kW output (total and for each phase). Display shall indicate power flow direction.

5. AC kVA output (total and for each phase). Display shall indicate power flow direction.

6. AC Power factor (total and for each phase). Display shall indicate leading or lagging condition.

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7. Ammeter-voltmeter displays shall simultaneously display conditions for all three phases.

8. Emergency Stop Switch: Switch shall be a red “mushroom head” pushbutton device complete with lock-out/tag-out provisions. Depressing switch shall cause the generator set to immediately stop the generator set and prevent it from operating.

9. Fault Reset Switch: Supply a dedicated control switch to reset/clear fault conditions.

10. DC voltmeter (alternator battery charging).

11. Engine-coolant temperature gauge.

12. Engine lubricating-oil pressure gauge.

13. Running-time meter.

14. Generator-voltage and frequency digital raise/lower switches. Rheostats for these functions are not acceptable. The control shall adjustment of these parameters in a range of plus or minus 5% of the voltage and frequency operating set point (not nominal voltage and frequency values.) The voltage and frequency adjustment functions shall be disabled when the paralleling breaker is closed.

15. AC Protective Equipment: The control system shall include over/under voltage, reverse kVAR, reverse kW, over load (kW) short circuit, over current, loss of voltage reference, and over excitation shut down protection. There shall be a ground fault alarm for generator sets rated over 1000 amps, overload warning, and overcurrent warning alarm.

16. Status LED indicating lamps to indicate remote start signal present at the control, existing shutdown condition, existing alarm condition, not in auto, and generator set running.

17. A graphical display panel with appropriate navigation devices shall be provided to view all information noted above, as well as all engine status and alarm/shutdown conditions (including those from an integrated engine emission control system).

The display shall also include integrated provisions for adjustment of the gain and stability settings for the governing and voltage regulation systems.

18. Panel lighting system to allow viewing and operation of the control when the generator room or enclosure is not lighted.

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19. Data Logging: The control system shall log the latest 20 different alarm and shut down conditions, the total number of times each alarm or shutdown has occurred, and the date and time the latest of these shutdown and fault conditions occurred.

20. DC control Power Monitoring: The control system shall continuously monitor DC power supply to the control, and annunciate low or high voltage conditions. It shall also provide an alarm indicating imminent failure of the battery bank based on degraded voltage recover on loading (engine cranking).

21. Provide communication module for transmitting alarms and conditions over the ethernet to the existing treatment plant SCADA system using Modbus TCP protocol.

2.05 COOLI.NG SYSTEM
A. Cooling System: The engine jacket water cooling system shall be a closed circuit design with provision for filling, expansion, and deaeration. The cooling pump shall be driven by the engine. Auxiliary coolant pumps required for heat exchangers or separate circuit aftercooling shall also be engine driven. The radiator cooling fan shall be a blower type driven from the engine. Air shall be drawn from the engine side and exhausted through the radiator core. The engine air cleaner shall be engine mounted with dry element requiring replacement no more frequently than 250 operating hours or once each year.

2.06 EXHAUST SILENCER
A. The exhaust silencer shall be sized and supplied by the engine supplier. It shall be mounted near the engine to minimize noise and condensation, and pitched away from the engine. A provision for draining moisture shall be included.

B. The silencer shall provide extreme noise attenuation for environments with low background noise and slight noise emissions would be objectionable. The silencer shall be located inside the generator enclosure.

2.07 WIRING AND CONDUIT
A. Engine and generator control wiring shall be multi-strand annealed copper conductors encased by cross-linked polyethylene insulation resistant to heat, abrasion, oil, water, and antifreeze. Wiring shall be suitable for continuous use at 250 F with insulation not brittle at -60 F. Each cable will be heat stamped throughout the entire length to identify the cable's origin and termination. Cables shall be enclosed in nylon flexible conduit which is slotted to allow easy access and moisture to escape. Reusable bulkhead fittings will attach the conduit to generator set mounted junction boxes.

2.08 ELECTRIC STARTING SYSTEM
A. The engine starting system shall include 24 volt DC starting motor(s), starter relay, and automatic reset circuit breaker to protect against butt engagement. Batteries shall be

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maintenance free, lead acid type mounted near the starting motor. A corrosion resistant or coated steel battery rack shall be provided for mounting. Required cables shall be furnished and sized to satisfy circuit requirements.

B. A jacket water heater shall be provided to maintain coolant temperature of 90 F while the engine is idle. Heaters shall be rated 1.5kW shall accept 240 volt AC single phase power and include thermostatic controls. Include isolation valves to isolate the heater for replacement of the element without draining the engine cooling system or significant coolant loss.

C. Batteries for starting and control shall be selected and supplied by the generator set manufacturer.

D. Batteries shall be located as close to the starting motor as practical, away from spark sources, in a relatively cool ambient, and permit easy inspection and maintenance.

E. A dual rate 10 ampere battery charger shall be provided which shall accept 120 volt AC single phase input to provide 24 volt DC output. It shall be fused on the AC input and DC output, and incorporate current limiting circuitry to avoid the need for a crank disconnect relay. An AC voltage power switch shall be mounted on the face of the charger and shielded from accidental switching. The charger shall include an AC ammeter and voltmeter, and be housed in a NEMA enclosure suitable for the space within the generator enclosure. The battery charger shall have charger loss of power, charger failure, and overvoltage and undervoltage local alarm indication and form C contacts for remote indication. Battery charger shall be manufactured by La Marche, Master, Sens, or equal.

F. Provide all required cables, and lugs for proper connection of the batteries to the engine and to the battery charger.

G. Battery warranty shall be the responsibility of the generator set manufacturer.

2.09 GENERATOR
A. The generator shall be rated for Standby service at 1250kW, 1562.5kVA, 0.8 PF, 480Y/277V, three phase.

B. The generator shall be capable of withstanding a three phase load of 300% rated current for 10 seconds, and sustaining 150% of continuous load current for 2 minutes with field set for normal rated load excitation. The permanent magnet excitation system shall derive excitation current from a pilot exciter mounted on the rotor shaft. It shall enable the generator to sustain 300% of rated current for ten seconds during a fault condition.

C. The generator shall be close coupled, drip proof and guarded, constructed to NEMA 1 and IP 22 standards, single bearing, salient pole, revolving field, synchronous type with amortisseur windings in the pole faces of the rotating field.

D. The generator housing shall be one piece and mount directly to the engine flywheel housing without bolted adaptors. Engine torque shall be transmitted through flexible steel

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plates to the generator rotor. The generator ventilating fan shall mount to the engine flywheel and act as a pressure plate to secure the flexible plates.

E. The alternator shall be rated for a 105 degree C temperature rise over a 40 degree C environment. Provide alternator with a 100 watt, 120 volt anti-condensation heater.

2.10 AUTOMATIC VOLTAGE REGULATOR
A. Solid-state type, separate from exciter, providing performance as specified. The voltage regulation system shall be microprocessor-controlled, 3-phase true RMS sensing, full wave rectified, and provide a pulse-width modulated signal to the exciter. 2.11 MOUNTING/ENCLOSURE A. The engine and generator shall be assembled to a common base by the engine-generator manufacturer. The generator set base shall be designed and built by the engine-generator manufacturer to resist deflection, maintain alignment, and minimize resonant linear vibration.

B. Multiple panels shall be lockable and provide adequate access to components requiring maintenance. Instruments, control, and battery system shall be mounted within enclosure.

C. Construction:

1. Louvers: Equip with bird screen to permit air circulation when engine is not running while excluding birds and rodents,

2. Hinged Doors: Include padlocking provisions. Provide restraint/hold back hardware to prevent door to keep door open at 180 degrees during maintenance. Provide with rain lips over all doors.

3. Hardware: All hardware and hinges shall be stainless steel.

D. Shore power panel: Provide a 120/240V, 125A shore power panel with circuit breakers and spaces as indicated on the Drawings. Interiors shall be designed so that circuit breakers can be replaced without disturbing adjacent units and without removing the main bus connectors.

1. Bus bars for the main and cross connectors shall be copper. Provide copper neutral and ground bus bars.

2. All wire connectors and terminals shall be of the anti-turn solderless type and shall be suitable for copper or aluminum wire of the sizes indicated.

3. Circuit breakers shall be molded case type. Each pole of the circuit breaker shall provide inverse time delay overload and instantaneous short-circuit protection. All circuit breakers shall be operated by a toggle-type handle and multi-pole circuit breakers shall have an internal common trip mechanism. The circuit breakers shall incorporate trip mechanisms that are mechanically trip-free from the handle. The

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handle position shall provide good visual trip indication. Breakers shall be SWD rated and/or HACR rated as required. Identification labels denoting circuit number shall be provided for each circuit.

4. Panel shall have NEMA 1 enclosure and shall be surface mounted. Box shall be made from galvannealed, or equivalent, rust-resistant steel. Boxes shall be of sufficient size to provide at least a minimum code gutter space on all sides.

5. Unless otherwise noted on the Drawings, hinged doors covering all circuit breaker handles shall be included in all trims. Trim doors shall not uncover any live parts in making the circuit breaker handles accessible. Doors shall have a manually operated spring latch. Provide door mounted directory label and nameplate identifying panel designation.

E. Luminaires: Provide 120 volt nominal 50"L X 7"W X 5"D LED luminaire with fiberglass reinforced polyester body, medium distribution, high impact acrylic lineal rib frosted lens, stainless steel latches, IP65 rating, nominal 6,000 lumens at 4000K and top mounting bracket. Provide 3-way line voltage switch at each door to enclosure for control of luminaires within the enclosure.

F. Receptacles: Provide duplex convenience outlets, three-wire, NEMA 5-20R, industrial grade, 125-volt, parallel slot, polarized where indicated. Devices shall have nylon face, thermoplastic body, brass strap, triple wipe brass line contacts, and brass ground contacts.

Devices shall be furnished in ivory color. Devices shall be Hubbell, Cooper, or Leviton 5352, or equal.

2.12 MAIN CIRCUIT BREAKER
A. Provide a main circuit breaker within the generator enclosure with the source connected to the generator and the load connected to the motor control board. Circuit breaker shall be molded case and provided with an electronic trip package including instantaneous, long-time, and short-time.

PART 3 - EXECUTION

3.01 PRE-DELIVERY INSPECTION
A. A pre-delivery inspection shall be performed by the system manufacturer's local dealer at the dealer's facility to ensure no damage occurred in transit and all generator set components, controls, and accessories are included as specified herein.

3.02 FIELD QUALITY CONTROL
A. The complete installation shall be checked for procedural and operational compliance by a representative of the system manufacturer's authorized local dealer. The engine lubricating shall be provided by the generator set dealer.

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B. The system manufacturer's dealer representative for the generator sets and motor control board shall be present to assist the Contractor during start-up, systems check, adjusting, and any site testing required after the installation is complete.

3.03 PREDELIVERY TESTING
A. Prior to delivery and acceptance, the generator sets shall be tested to show they are free of any defects and will start automatically and carry full load. This testing shall be performed at the facility of the system manufacturer's authorized local dealer.

B. The testing shall be done on dry type, resistive load banks capable of definite and precise incremental loading. Salt water brine tanks or load banks requiring water as a source of cooling will not be allowed.

C. The load banks shall not be dependent on the generator control instruments to read amperage and voltage on each phase. Rather, the test instrumentation will serve as a check of the generator set meters.

D. Load bank testing shall be done in the presence of the Engineer or his appointed representative. Testing shall be for a minimum of four (4) hours under full load.

E. All consumables necessary for testing shall be furnished by the bidder. Any defects which become evident during the test shall be corrected by the bidder at his own expense prior to shipment to the jobsite.

3.04 SHIPMENT TO JOBSITE
A. Delivery shall be FOB to the jobsite by the system manufacturer's authorized dealer.

3.05 FIELD QUALITY CONTROL
A. The complete installation shall be checked for procedural and operational compliance by a representative of the system manufacturer's authorized local dealer. The engine lubricating shall be provided by the generator set dealer. If switchgear and generator sets are furnished by different manufacturers, technical representatives of both generator sets and switchgear manufacturers' authorized dealers shall verify the installation meets requirements. Any deficiencies shall be noted and corrected by the Contractor.

B. The system manufacturer's dealer representative for the generator sets and switchgear shall be present to assist the Contractor during start-up, systems check, adjusting, and any site testing required after the installation is complete.

3.06 POST INSTALLATION TESTING
A. Provide a test for proper operation of the generator set after installation for proper operation. The test shall include but not be limited to visual inspection of components to determine compliance with the contract documents along with simulation of safety shutdowns and alarms.

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1. Load test 10 minutes at 25%, and 50% rated load, one hour at 75% of rated load followed by two hours at 100% load. Equipment conditions shall be recorded in 10 minute intervals.

2. Maximum vibration levels shall be recorded at no load and full load. The recording instrument shall be an IRD 350 mechanalysis meter. All readings shall be 5 mils or less throughout the operating frequency range. The measurement points shall be dictated by the end user and be in accordance with standard practice.

3. The Engineer shall be notified a minimum of five working days prior to test.

B. Provide necessary facilities, instrumentation, and equipment, including a load bank, and arrange for a final jobsite test. The field test shall be run at 1.0 power factor.

C. Readings required during the test shall be taken on recently calibrated laboratory instruments as well as those on the equipment and shall include frequency, voltage, current, wattage, ambient temperature, water temperature, exhaust air temperature, generator frame temperature at hottest spot, oil pressure and temperature. Frequency and voltage tests shall include a record response time for recovery from load changes.

D. All adjustments and replacement of unsatisfactory equipment shall be made by the Contractor at his own expense and no additional expense to the Owner.

E. Before acceptance of set, the Contractor shall instruct the Owner's maintenance and operating staff in the operation and maintenance of this equipment. Complete written instructions manuals, operating schedules, parts lists, blueprints, wiring diagrams, maintenance and repair manuals, engine and generator specifications including actual performance curves, shall be submitted in quintuplicate to the Engineer before final approval. The foregoing tests and associated work shall be provided without additional cost to the Owner.

3.07 ENGINEERING SERVICES AND MAINTENANCE
A. Engineering Services and Maintenance: For a period of 12 months after Substantial Completion, at no expense to the Owner, provide on-call mechanical and electrical adjustments to the equipment and replacement of any defective materials. During these 12 months, ordinary servicing will be performed by the Owner.

3.08 ORIENTATION
A. The system manufacturer's authorized dealer shall provide a complete orientation for the Owner's engineering and maintenance personnel. Orientation shall include both classroom and hands-on instruction. Topics covered shall include control operation, schematics, wiring diagrams, meters, indicators, warning lights, shutdown system, and routine maintenance.

END OF SECTION

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SECTION 263623 AUTOMATIC TRANSFER SWITCHES
PART 1 - GENERAL

1.01 SECTION INCLUDES
A. Extent of automatic transfer switch work is indicated by Drawings and as specified herein.

B. Types of automatic transfer switches in this section include switches rated for use on power systems with voltages of 600 volts or less and designated as open-transition type.

C. Transfer switches shall monitor the normal and standby power source and, upon failure of one of the sources, initiate transfer to the remaining source.

1.02 QUALITY ASSURANCE
A. Manufacturers: Firms regularly engaged in manufacture of automatic transfer switches of types and ratings required, whose products have been in satisfactory use in similar service for not less than five years. Firms shall maintain a service center capable of providing training, parts, and emergency maintenance repairs within a response period of less than eight hours from time of notification.

B. Nationally Recognized Testing Laboratory (NRTL) Compliance and Labeling: Comply with safety standards, including UL 1008 Standard for Transfer Switch Equipment, pertaining to automatic transfer switches and provide products and components that have been listed and labeled by an NRTL such as UL or equal.

C. IEEE Compliance: IEEE Compliance: Comply with IEEE Standard 446, "IEEE Recommended Practice for Emergency and Standby Power Systems for Commercial and Industrial Applications" pertaining to standby power and IEEE 446 Recommended Practice for Emergency and Standby Power Systems for Commercial and Industrial Applications.

D. All new transfer switches shall be qualified for installation in Seismic Zone 4 as detailed in the CBC. Submit substantiating data on each piece of equipment with the shop drawing submittals.

E. California Electrical Code (CEC) Compliance: Comply with CEC requirements as to materials and installation of automatic transfer switches and accessories.

1.03 SUBMITTALS
A. Product Data: Submit manufacturer's technical product data on automatic transfer switches. The manufacturer's application data shall include, but not be limited to the voltage, phase, number of poles, frequency, bus capacity, bus bracing levels and short circuit rating, type of wiring, and enclosures.

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B. Shop Drawings: Submit dimensioned drawings of automatic transfer switches showing minimum clearances, conductor entry provisions, gutter space, installed features and devices, and material lists for each switch.

C. Submit certification that transfer switches accessories, and components will remain in place without separation of any parts from the device when subjected to the seismic forces specified and the unit will be fully operational after the seismic event. The specified seismic forces shall be as indicated in California Building Code Seismic Zone 4. Identify center of gravity and locate and describe mounting and anchorage provisions.

D. Operator's Manual & Spare Parts: Submit maintenance data and detailed spare parts list including furnished specialties and accessories and include with product data, shop drawings, and wiring diagrams in an operating and maintenance manual. The spare parts list shall include manufacturer's name and part number for all components of the system.

Furnish each transfer switch with an operator's manual providing installation and operation instructions.

E. Field quality-control test reports: Submit test procedures used, test results that comply with requirements, and results of failed tests and corrective action taken to achieve test results that comply with requirements.

PART 2 - MATERIALS

2.01 ACCEPTABLE MANUFACTURERS
A. Subject to compliance with requirements, manufacturers offering products that may be incorporated in the work include, but are not limited to ASCO 7000 Series, or equal.

2.02 GENERAL
A. Repetitive accuracy of all settings for solid-state controls shall be plus or minus 2 percent or better over an operating temperature range of minus 20 deg C to plus 70 deg C.

B. Resistance to Damage by Voltage Transients: Components shall meet or exceed voltagesurge withstand capability requirements when tested according to IEEE C62.41.

Components shall meet or exceed voltage-impulse withstand test of NEMA ICS 1.

C. Electrical Operation shall be accomplished by a nonfused, momentarily energized solenoid or electric motor-operated mechanism, mechanically and electrically interlocked in both directions.

D. Switch shall be designed for continuous-duty repetitive transfer of full-rated current between active power sources. Switch Action shall be double throw and be mechanically held in both directions. Provide contacts with silver composition or silver alloy for loadcurrent switching.

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E. Provide overlapping neutral contacts. The neutral terminal shall be solid and fully rated, unless otherwise indicated.

F. Train and bundle factory wiring and label, consistent with Shop Drawings, either by colorcode or by numbered or lettered wire and cable tape markers at terminations. Provide pressure type terminals suitable for types and sizes of field wiring indicated. The power terminal arrangement and wiring space shall be suitable for top, side, or bottom entrance of feeder conductors as indicated. Control wiring shall be equipped with lugs suitable for connection to terminal strips.

G. Devices at transfer switches for communicating with remote programming devices, annunciators, or annunciator and control panels shall have communication capability matched with remote device.

2.03 AUTOMATIC TRANSFER SWITCHES
A. The transfer switch unit shall be electrically operated and mechanically held. The electrical operators shall be a solenoid mechanism, momentarily energized. The transfer switch unit shall include both electrical and mechanical interlocks to prevent both sets of main contacts from being closed at the same time. Main operators which include overcurrent disconnect devices OR do not include electrical and mechanical interlocks will not be accepted. Transfer switch shall be double-throw type, incapable of pauses or intermediate position stops during normal functioning, unless otherwise indicated.

B. Switch shall be capable of being manually operated under load, with door closed and with either or both sources energized. Transfer time shall be the same as for electrical operation.

Control circuit shall automatically disconnect from electrical operator during manual operation.

C. The switch shall be positively locked and unaffected by momentary outages, so that contact pressure is maintained at a constant value and contact temperature rise is minimized for maximum reliability and operating life.

D. All main contacts shall be silver composition. Switches rated 800 amperes and above shall have segmented, blow-on construction for high withstand and close-on capability and be protected by separate arcing contacts.

E. Inspection of all contacts shall be possible from the front of the switch without disassembly of operating linkages and without disconnection of power conductors.

Switches rated 800 amps and higher shall have front removable and replaceable contacts.

All stationary and moveable contacts shall be replaceable without removing power conductors and/or bus bars.

F. Provide factory wired in-phase monitor with internal relay controls so that transfer occurs only when the two sources are synchronized in phase. Relay shall compare phase relationship and frequency difference between normal and alternate sources and initiates transfer when both sources are within 15 electrical degrees, and only if transfer can be

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completed within 60 electrical degrees. Transfer shall be initiated only if both sources are within 2 Hz of nominal frequency and 70 percent or more of nominal voltage.

G. Microprocessor Controller

1. The controller's sensing and logic shall be provided by a single built-in microprocessor for maximum reliability, minimum maintenance, and the ability to communicate serially through an optional serial communication module.

2. The controller shall provide twelve selectable nominal voltages for maximum application flexibility and minimal spare part requirements. Voltage sensing shall be true RMS type and shall be accurate to 1% of nominal voltage. Frequency sensing shall be accurate to 0.2%. The panel shall be capable of operating over a temperature range of -20 to +60 degrees C and storage from -55 to +85 degrees C.

3. The controller shall be connected to the transfer switch by an interconnecting wiring harness. The harness shall include a keyed disconnect plug to enable the controller to be disconnected from the transfer switch for routine maintenance. Sensing and control logic shall be provided on multi-layer printed circuit boards. Interfacing relays shall be industrial grade plug-in type with dust covers. The panel shall be enclosed with a protective cover and be mounted separately from the transfer switch unit for safety and ease of maintenance. The protective cover shall include a builtin pocket for storage of the operator’s manuals.

4. All customer connections shall be wired to a common terminal block to simplify field-wiring connections.

5. A four-line, 20 character LCD display and keypad shall be an integral part of the controller for viewing all available data and setting desired operational parameters.

Operational parameters shall also be available for viewing and limited control through the serial communications input port. Nominal line voltage and frequency, single or three phase sensing, operating parameter protection, and transfer mode configuration shall only be adjustable via DIP switches on the controller.

6. The controller shall be capable (when activated by the keypad or through the serial port) of sensing the phase rotation of both the normal and emergency sources. The source shall be considered unacceptable if the phase rotation is not the preferred rotation selected (ABC or CBA).

7. Source status screens shall be provided for normal and emergency to provide digital readout of voltage on all three phases, frequency, and phase rotation.

8. The controller shall include a user selectable algorithm to prevent repeated transfer cycling to a source on an installation which experiences primary side, single phase failures on a Grounded Wye – Grounded Wye transformer which regenerates voltage when unloaded. The algorithm shall also inhibit retransfer to the normal (utility) source upon detection of a single phasing condition until a dedicated timer expires, the alternate source fails, or the normal source fails completely and is

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restored during this time delay period. The time delays associated with this feature shall be adjustable by the user through the controller keypad and LCD.

9. The controller shall have the ability to log data and to maintain the last 99 events, even in the event of total power loss.

H. Communications Module

1. Provide remote interface module to support Owner's monitoring of transfer switch and controller. Module shall provide status, analog parameters, event logs, equipment settings & configurations over embedded webpage and open protocol.

2. Email notifications and SNMP traps of selectable events and alarms may be sent to a mobile device or PC.

3. Modbus TCP/IP, SNMP, HTTP, SMTP open protocols shall be simultaneously supported.

4. Include web app interface requiring user credentials to monitor and control the transfer switch supporting modern smart phones, tablets and PC browsers. User will be able to view the dynamic one-line; ATS controls status, alarms, metering, event logging as well as settings.

5. Secure access shall be provided by requiring credentials for a minimum of 3 user privilege levels to the web app, monitor (view only), control (view and control) and administrator (view, control and change settings). 128-Bit AES encryption standard shall be supported for all means of connectivity.

6. Allow for the initiating of transfers, retransfers, bypassing of active timers and the activating/deactivating of engine start signal shall be available over the embedded webpage and to the transfer switch vendor’s monitoring equipment.

7. An event log displaying a minimum of ninety-nine (99) events shall be viewable and printable from the embedded webpages and accessible from supported open protocols.

8. Include four (4) 100 Mbps Ethernet copper RJ-45 ports, five (5) serial ports, Termination dip-switches and LEDs for diagnostics.

I. Enclosure

1. The enclosure shall be rated NEMA 3R and fabricated from code gauge steel. The enclosure shall include a service equipment section containing the service disconnect circuit breaker, grounding, and bonding provisions; plus, a second nonservice section containing the power transfer switch and controls.

2. All standard and optional door-mounted switches and pilot lights shall be 16-mm industrial grade type or equivalent for easy viewing & replacement. Door controls

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shall be provided on a separate removable plate, which can be supplied loose for open type units.

3. A pressure disconnect link shall be provided to disconnect the normal source neutral connection from the emergency and load neutral. A ground bus shall be provided for connection of the grounding conductor to the grounding electrode. A pressure disconnect link for the neutral to ground bonding jumper shall be provided to connect the normal neutral connection to the ground bus.

4. Provide exterior doors with padlockable handles and three point latch.

5. Provide with ANSI 61 Gray Polyester semi-gloss electrostatic finish.

J. Time Delays

1. An adjustable time delay of 0 to 6 seconds shall be provided to override momentary normal source outages and delay all transfer and engine starting signals. Capability shall be provided to extend this time delay to 60 minutes by providing an external 24 VDC power supply.

2. A time delay shall be provided on transfer to emergency, adjustable from 0 to 60 minutes, for controlled timing of transfer of loads to emergency.

3. An adjustable time delay of 0 to 6 seconds to override momentary emergency source outage to delay all retransfer signals during initial loading of engine generator set.

4. Two time delay modes (which are independently adjustable) shall be provided on re-transfer to normal. One time delay shall be for actual normal power failures and the other for the test mode function. The time delays shall be adjustable from 0 to 60 minutes. Time delay shall be automatically bypassed if the emergency source fails and the normal source is acceptable.

5. A time delay shall be provided on shut down of engine generator for cool down, adjustable from 0 to 60 minutes.

6. The controller shall also include built-in time delay for delayed transition operation adjustable from 0 to 5 minute time delay for the load disconnect position for delayed transition operation.

7. All time delays shall be adjustable in 1 second increments, except the extended parallel time, which shall be adjustable in .01 second increments.

8. All time delays shall be adjustable by using the LCD display and keypad or with a remote device connected to the serial communications port. The time delay value displayed on the LCD or remote device shall be the remaining time until the next event occurs.

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K. Automatic Transfer Switch Features:

1. Provide three-phase undervoltage sensing for each phase of the normal and emergency sources. Sense low phase-to-ground voltage on each phase. Pickup voltage shall be adjustable from 85 to 100 percent of nominal, and dropout voltage shall be adjustable from 70 to 98 percent of pickup value.

2. Provide three-phase overvoltage sensing of each phase of the normal and emergency sources. Dropout voltage shall be adjustable from 102 to 115% of nominal, and pickup voltage set at 2% below trip.

3. Provide continuous underfrequency monitoring of the normal and emergency sources with pickup frequency adjustable from 90 to 100% and dropout frequency adjustable from 85 to 98%.

4. Provide continuous overfrequency monitoring of the normal and emergency sources. Dropout frequency shall be adjustable from 102 to 110% with pickup frequency adjustable at 2% below trip.

5. Provide continuous voltage unbalance monitoring of the emergency and normal sources. Dropout unbalance shall be adjustable from 5-20% with pickup at 1% below trip.

6. Voltage and frequency settings shall be field adjustable in 1% increments either locally with the display and keypad or remotely via serial communications port access. Repetitive accuracy of all settings shall be within ± 0.5% over an operating temperature range of -20 C to 60 C

7. An adjustable time delay shall be included for override of normal-source voltage sensing to delay transfer and engine start signals. Adjustable from zero to six seconds.

8. Include test switch to simulate normal-source failure.

9. Switch shall be provided with LED position pilot lights to indicate the source to which load is connected. Source-available indicating lights shall supervise sources via transfer-switch normal- and emergency-source sensing circuits. a. Normal Power Supervision shall have a green light with nameplate engraved "Normal Source Available."
b. Standby Power Supervision: Red light with nameplate engraved " Standby Source Available."

10. Two normally open, single-pole, double-throw auxiliary contacts for each switch position, rated 10 A at 250-V ac shall be provided.

DRAFT - NOT FOR CONSTRUCTION
AUTOMATIC TRANSFER SWITCHES 263623-8
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022

11. Provide switch that overrides automatic retransfer control so automatic transfer switch will remain connected to standby power source regardless of condition of normal source. Include a pilot light to indicate override status.

12. Engine starting contacts shall consist of one isolated normally closed and one isolated and normally open; rated 10 A at 32-V dc minimum.

13. Provide engine shutdown contacts consisting of a time delay adjustable from zero to five minutes. Set for five minutes. Contacts shall initiate shutdown at remote engine-generator controls after retransfer of load to normal source.

14. Include engine-generator exerciser. Unit shall be solid-state, programmable-time switch that starts engine generator and transfers load to it from normal source for a preset time, then retransfers and shuts down engine after a preset cool-down period.

It shall also Initiate exercise cycle at preset intervals adjustable from 7 to 30 days.

Running periods shall be adjustable from 10 to 30 minutes. Set for 30-day exercise cycle, 30-minute running period, and 5-minute cool-down period. Include exerciser with the following:
a. Exerciser transfer selector switch to permit selection of exercise with and without load transfer.
b. Push-button programming control with digital display of settings. c. Integral battery operation of time switch when normal control power is not available.

PART 3 - EXECUTION

3.01 GENERAL
A. Install automatic transfer switches where shown in accordance with manufacturer's written instructions and recognized industry practices to ensure compliance with NEMA requirements, CEC standards, applicable portions of NECA's "Standard of Installation," and requirements of the State of California.

B. Seismic Restraints and Anchorage: Seismic restraints and anchorage for all automatic transfer and bypass/isolation switches shall be designed to resist the effects of earthquake motions as required by 2019 California Building Code Section 1613 and 2010 ASCE 7.

C. Adjust and Clean: Adjust operating mechanisms for free mechanical movement. Touch up scratched or marred surfaces to match original finish. Adjust all timing and sensing settings prior to energizing.

D. Set field-adjustable intervals and delays, relays, and engine exerciser clock.

3.02 FIELD QUALITY CONTROL
A. Perform tests and inspection and prepare test reports.

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AUTOMATIC TRANSFER SWITCHES 263623-9
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022
B. Prior to energization of circuitry: Perform each visual and mechanical inspection and electrical test stated in InterNational Electrical Testing Association (NETA) “Acceptance Testing Specifications for Electrical Power Distribution Equipment and Systems”. Check for electrical continuity of circuits and for short circuits. Verify that manual transfer warnings are properly placed. Inspect for physical damage, proper installation and connection, and integrity of barriers, covers, and safety features. Measure insulation resistance phase-to-phase and phase-to-ground with insulation resistance tester. Include external annunciation and control circuits. Use test voltages and procedure recommended by manufacturer. Comply with manufacturer's specified minimum resistance.

C. After energizing circuits, demonstrate interlocking sequence and operational function for each switch at least three times. Simulate power failures of normal source to automatic transfer switches and of standby source with normal source available. Simulate loss of phase-to-ground voltage for each phase of normal source. Verify time-delay settings.

Verify pickup and dropout voltages by data readout or inspection of control settings. Test bypass/isolation unit functional modes and related automatic transfer-switch operations.

Verify proper sequence and correct timing of automatic engine starting, transfer time delay, retransfer time delay on restoration of normal power, and engine cooldown and shutdown.

D. Coordinate tests with tests of generator and run them concurrently. Report results of tests and inspections in writing. Record adjustable relay settings, measured insulation, and contact resistances and time delays. Attach a label or tag to each tested component indicating satisfactory completion of tests.

E. Remove and replace malfunctioning units and retest as specified above.

F. Before acceptance of equipment, instruct the District's maintenance and operating staff in the operation and maintenance of this equipment. Complete written instructions manuals, operating schedules, parts lists, blueprints, wiring diagrams, maintenance and repair manuals, switchgear specifications, shall be submitted to the Engineer before final approval. The foregoing tests and associated work shall be provided without additional cost to the District.

END OF SECTION

DRAFT - NOT FOR CONSTRUCTION
EXTERIOR LIGHTING 265000-1
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022
SECTION 265000 EXTERIOR LIGHTING
PART 1 - GENERAL

1.01 SECTION INCLUDES
A. Extent of luminaire work is indicated by Drawings and Schedules.

B. Types of luminaires in this Section include units using LED lamp sources.

1.02 QUALITY ASSURANCE
A. Manufacturers: Firms regularly engaged in manufacture of luminaires of types and ratings required, whose products have been in satisfactory use in similar service for not less than five years.

B. Nationally Recognized Testing Laboratory (NRTL) Compliance and Labeling: Comply with safety standards pertaining to luminaires and provide products and components that have been listed and labeled by an NRTL such as UL or equal.

C. NEMA Compliance: Comply with applicable portions of NEMA Stds. No. LE 1 and LE 2 pertaining to lighting equipment.

D. ANSI/IES Compliance: Comply with ANSI 132.1 standards pertaining to lighting.

E. California Electrical Code (CEC) Compliance: Comply with CEC as applicable to construction and installation of electrical luminaires.

F. City of San Luis Obispo Compliance: Comply with City of San Luis Obispo Municipal Code 17.70.100.

1.03 SUBMITTALS
A. Product Data: Submit manufacturer's data on luminaires in booklet form with separate sheet for each fixture, assembled in luminaire "type" alphabetical order with proposed fixture and accessories clearly indicated on each sheet. Indicate specific lamp and driver types. Include input watts, starting, operating, and open-circuit current, power factor, and minimum starting temperature. Submit information indicating the type of LED lamps to be provided with each luminaire including color temperature and color rendering index.

Provide certified photometric data for each luminaire.

B. Submit a photometric plan depicting the location of all new light poles and a maximum ten-foot by ten-foot grid of both the initial and maintained lighting levels on the site, and including impact on adjacent properties.

C. Provide paint chip color samples for proposed luminaires and poles.

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EXTERIOR LIGHTING 265000-2
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022
PART 2 - MATERIALS

2.01 ACCEPTABLE MANUFACTURERS
A. Available Manufacturers: Subject to compliance with requirements, provide products of manufacturers as specified on the Drawings.

2.02 LUMINAIRES
A. General: Provide luminaires of sizes, types, ratings and manufacturer, complete with, but not necessarily limited to, housings, lamps, reflectors, lenses, and wiring as specified on the Drawings.

B. Luminaires shall be full cut-off with no emitted light breaking a horizontal plane passing through the lowest point of the luminaire housing.

2.03 POLES AND STANDARDS
A. Metal Lighting Poles: Provide metal, raceway-type lighting poles and standards, of sizes and types indicated, comprised of shaft, bracket, and anchor base. Construct of the following materials with additional construction features:

1. Material: Extruded aluminum as indicated on luminaire schedule.

2. Configuration: Anchor base type with hand hole and cover as indicated on luminaire schedule.

3. Handhole: Provide minimum 2”x4” handhole with watertight cover. Provide grounding terminal connection readily accessible from handhole.

B. Metal Lighting Pole Accessories: Provide accessories for metal lighting poles, including galvanized anchor bolts, double nuts, and washers, as recommended by lighting standard manufacturer, of sizes and materials needed to meet erection and loading application requirements of new standards.

PART 3 - EXECUTION

3.01 INSTALLATION OF LUMINAIRES
A. Install luminaires at locations and heights as indicated, complying with manufacturer's written instructions, and recognized industry practices to ensure that products fulfill requirements.

B. Coordinate with other electrical work and work of all other Divisions as necessary for proper interface.

C. Fasten luminaires securely to indicated structural support.

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EXTERIOR LIGHTING 265000-3
CITY OF SLO WTP GENERATOR IMPROVEMENTS - 23 Feb 2022
D. Wire luminaires with conductors suitable for the voltage, current, and temperature to which the conductors will be subjected.

E. Install new lighting poles where shown in accordance with drawings and manufacturer’s written instructions and in compliance with National Electrical Safety Code and NECA’s “Standards of Installation” to ensure that poles comply with requirements.

F. To protect finishes, use belt slings or rope (not chain or cable) to raise and set finished poles.

G. Set poles plumb. Support adequately during anchoring to foundations. Poles shall be leveled, and then the base shall be dry packed and surface troweled to provide drainage.

H. Provide sufficient space encompassing hand access and cable entrance holes for installation of cables from underground where indicated.

3.02 ADJUST AND CLEAN
A. Clean luminaires of dirt and debris and replace burned-out lamps before final acceptance of the installation.

B. Protect installed luminaires from damage during remainder of construction period.

3.03 FIELD QUALITY CONTROL
A. Upon completion of installation of luminaires and after circuitry has been energized, apply electrical energy to demonstrate capability and compliance with requirements. Where possible, correct malfunctioning units at site, then retest to demonstrate compliance.

Otherwise, remove and replace with new units, and proceed with retesting.

B. Protect luminaires from damage during the remainder of construction period.

3.04 GROUNDING
A. Provide tight equipment grounding connections for each exterior luminaire installation.

B. Provide where indicated for installed poles tight equipment bonding and ground connections, sufficiently tight to assure permanent and effective grounds.

END OF SECTION

DRAFT - NOT FOR CONSTRUCTION
EARTHWORK 312300-1
City of SLO WTP Generator Improvement - 2 Mar 2022
SECTION 312300 EARTHWORK
PART 1 - GENERAL

1.01 DESCRIPTION
This section includes materials, testing, and installation of earthwork for excavations, fills, structures, and accessory items such as filter fabrics (geotextiles).

1.02 RELATED WORK SPECIFIED ELSEWHERE
A. Existing Conditions: General Provisions.

B. Protecting Existing Underground Utilities: 020120.

C. Cast in Place Concrete: 033000.

D. Trenching, Backfilling, and Compacting: 312316.

1.03 SUBMITTALS
A. Submit excavation and shoring drawings for worker protection in accordance with the Standard Specifications.

B. Submit 2 copies of a report from a testing laboratory verifying that the material contains less than 0.25% asbestos by weight or volume and conforms to the gradation specified.

Submit asbestos test results with the submittals for materials gradation. Material gradation reports without the accompanying asbestos test results will be rejected as incomplete.

C. Submit manufacturer's catalog data for geotextiles. Submit manufacturer's installation instructions and details for and geotextiles.

1.04 TESTING FOR COMPACTION
A. The Owner will test for compaction and relative density as described below.

B. Determine the density of soil in place by nuclear methods, ASTM D6938. Additional densities will be required if the backfill material is visually variable. Compaction tests will be performed for each lift or layer.

C. Determine laboratory moisture-density relations of soils per ASTM D1557. The compaction test results for maximum dry density and optimum water content shall be adjusted in accordance with ASTM D4718. This will be required for determination of percent relative compaction and moisture variation from optimum.

D. Determine the relative density of cohesionless soils per ASTM D4253 and D4254.

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EARTHWORK 312300-2
City of SLO WTP Generator Improvement - 2 Mar 2022
E. Sample materials per ASTM D75.

F. "Relative compaction" is the ratio, expressed as a percentage, of the inplace dry density to the laboratory maximum dry density.

G. Compaction shall be deemed to comply with the specifications when no more than one test falls below the specified relative compaction. The Contractor shall pay the costs of any retesting of work not conforming to the specifications.

1.05 DISPOSAL OF EXCESS MATERIALS
Excess site excavated or wasted material shall be disposed of offsite by the Contractor at his expense. No prearranged disposal site or related permits have been determined or secured by the Owner.

1.06 MATERIAL AVAILABILITY
Sufficient earthwork material to complete the work may not be available at the site.

Secure source of material and permits to complete the project requirements. PART 2 - MATERIALS

2.01 STRUCTURAL FILL
A. Structural fill is imported material that is to be placed beneath structures to the limits indicated in the drawings.

B. Imported material to be placed below the generator or equipment pads should be nonexpansive material having an Expansion Index of less than 20 when tested according to latest approved edition of ASTM D4829. Approved material types include SC, SM, SP, SW. Fill and borrow sources to be approved by geotechnical engineer before being imported to site.

2.02 FILL
Fill material is material that is to be placed in locations that are not to be constructed as structural fill or structural backfill. Fill material shall consist of imported or on-site material free of organics, oversize rock (greater than 3 inches), trash, debris, corrosive, and other deleterious materials. Fill materials should comply with all specified material requirements for the designated placement location as placed at the site.

2.03 SAND, INCLUDING IMPORTED SAND FOR PIPE ZONE AND PIPE BASE IN PIPE

TRENCHES
Refer to City Standard Details 6020, 6030, and 6035.

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EARTHWORK 312300-3
City of SLO WTP Generator Improvement - 2 Mar 2022

2.04 CONTROLLED LOW-STRENGTH MATERIAL BACKFILL
A. CLSM slurry cement backfill shall consist of one sack (94 pounds) conforming to Section 19-3.02E of Caltrans 2018 Standard Specifications.

B. CLSM backfill shall be a stable flowable mix and shall be consolidated using vibration during placement. Subsequent backfill or compacted material shall not be placed above slurry cement backfill until CLSM can support foot-traffic without more than 1/4 -inch indentation.

C. Contractor shall stabilize pipe as necessary to prevent movement during CLSM placement.

2.05 AGGREGATE BASE
Aggregate base shall be free imported material and shall conform to the following gradation:

Sieve Size Percent Passing By Weight
1 inch 100
3/4 inch 90 to 100
No. 4 35 to 60
No. 30 10 to 30
No. 200 2 to 9
The coarse aggregate (material retained by the No. 4 sieve) shall consist of material of which at least 25% by mass shall be fractured or crushed particles as determined per ASTM D5821. Aggregate base material shall be Class 2 material per Caltrans Standard Specifications (2018). Class 3 material shall not be permitted.

Aggregate base material shall meet the following requirements:

Parameter Minimum Value Test Standard
Durability index 35 CT 229
Resistance (R value) 78 CT 301
Sand equivalent 22 CT 217

2.06 FILTER FABRIC
A. Filter fabric shall be manufactured from polyester, polypropylene, or a combination of polyester and polypropylene material; shall be of nonwoven and permeable construction; and shall meet the following requirements:

1. Conform to Caltrans Standard Specifications (2018) Section 96-1.02B. .

DRAFT - NOT FOR CONSTRUCTION
EARTHWORK 312300-4
City of SLO WTP Generator Improvement - 2 Mar 2022

2.07 SUBGRADE ENHANCEMENT GEOTEXTILE
A. Subgrade enhancement geotextile consist of woven geosynthetic fabric; and shall meet the following requirements:

1. Conform to Caltrans Standard Specifications (2010) Section 96-1.02O .

B. Overlaps between adjacent rolls of geotextile shall be at least 2-feet wide or shall be spliced per the manufacture’s recommendations.

C. Shall be placed such that the fabric on the upstream or upslope side of the overlap is on top.

D. Rocks, protrusions or sharp objects that could damage geotextile shall be removed from subgrade prior to placing fabric. Depressions or holes left in subgrade from obstruction removal shall be filled with sand.

E. Placement, anchorage, and construction methods should comply with the manufacturer’s recommendations.

2.08 WATER FOR COMPACTION
Water shall be free of organic materials and shall have a pH of 7.0 to 9.0, a maximum chloride concentration of 500 mg/L, and a maximum sulfate concentration of 500 mg/L.

Provide all water needed for earthwork. Provide temporary piping and valves to convey water from the source to the point of use. Provide any meters if the water is taken from a city, water district, or agency pipeline.

PART 3 - EXECUTION

3.01 DEWATERING
Provide and operate equipment adequate to keep excavations and trenches free of water.

Dewater subgrade to a minimum of 2 feet below bottom of excavation. Remove water during period when concrete is being deposited, when pipe is being laid, and during the placing of backfill. Avoid settlement or damage to adjacent property. Dispose of water in a manner that will not damage adjacent property. When dewatering open excavations, dewater from outside the structural limits and from a point below the bottom of the excavation. See Specification Section 312319.

3.02 EXCAVATION
A. Excavations shall have sloping, sheeting, shoring, and bracing conforming with 29CFR1926 Subpart P-Excavations, CAL/OSHA requirements, and the General Provisions.

DRAFT - NOT FOR CONSTRUCTION
EARTHWORK 312300-5
City of SLO WTP Generator Improvement - 2 Mar 2022
B. Excavation is unclassified. Perform excavation regardless of the type, nature, or condition of the material encountered to accomplish the construction. Do not operate excavation equipment within 5 feet of existing structures or newly completed construction. Excavate with hand tools in these areas.

C. After the required excavation has been completed, the Owner will observe the exposed subgrade to determine the need for any additional excavation. It is the intent that additional excavation is to be conducted in all areas within the influence of the structure where unacceptable subgrade materials exist at the exposed subgrade. Overexcavation shall include the removal of all such unacceptable material that exists directly beneath the structure or within a zone outside and below the structure defined by a line sloping at 1-horizontal to 1-vertical from 1 foot outside the edge of the footing. Refill the overexcavated areas with structural backfill material.

D. The Contractor will not receive any additional payment for refill material used for his convenience.

3.03 LIMITS OF FOUNDATION EXCAVATION
A. Excavate to the depths and widths needed to accomplish the construction. Allow for forms, working space, structural backfill, and site grading. Do not excavate for footings, slabs, or conduits below elevations indicated. Unless unacceptable material is encountered and over-excavation is authorized by the Owner, backfill overexcavations with compacted crushed gravel material. Correct cuts below grade by benching adjoining areas and creating a smooth transition. The Contractor shall bear all costs for correcting unauthorized overexcavated areas
B. Limits of excavation and subgrade preparation shall be made for the following structures:

Location Approximate
Excavation
Depth
Excavation and Subgrade Preparation
Generator/Fuel
Tank
3 feet a. Soil within the foundation area of
the generator pad shall be
removed to a level plane at a
depth of 2 feet below the bottom
of the foundation or 3 feet below
the lowest existing grade within
the foundation area, whichever is
deeper.
b. Scarify 9-inches, moisture
condition and compact exposed
bottom to at least 95% relative

DRAFT - NOT FOR CONSTRUCTION
EARTHWORK 312300-6
City of SLO WTP Generator Improvement - 2 Mar 2022
compaction.
c. Place structural fill in 6-inch lifts
to 12 inches below the
foundation and compact to 95%
relative compaction.
d. Upper 12 inches of material shall
consist of aggregate base placed
in 6-inch lifts and compact to
95% relative compaction.

Electrical
Equipment
Slabs/Walkways
2 feet a. Soil within the foundation area of
the electrical equipment slabs and
walkways shall be removed to a
level plane at a depth of 1 foot
below the bottom of the
foundation or 2 feet below the
lowest existing grade within the
foundation area, whichever is
deeper.
b. Scarify 9-inches, moisture
condition and compact exposed
bottom to at least 95% relative
compaction.
c. Place aggregate base in 6-inch
lifts to bottom of slab and
compact to 95% relative
compaction.

3.04 PREPARATION OF FOUNDATION SUBGRADE
A. The finished subgrade shall be within a tolerance of ±0.08 of a foot of the grade and cross section indicated, shall be smooth and free from irregularities, and shall be at the specified relative compaction. The subgrade shall extend over the full width and extend a minimum of 3 feet beyond the edge of the foundations.

B. Remove soft material encountered and replace with structural backfill. Fill holes and depressions to the required line, grade, and cross sections with structural backfill.

C. Areas that will be graded, receive fill, or serve as borrow sources shall have stumps, roots, vines, fencing, and buried vegetation removed. Soil containing pavement, debris, organics, unsuitable, loose, or disturbed material shall be removed prior to placing fill.

DRAFT - NOT FOR CONSTRUCTION
EARTHWORK 312300-7
City of SLO WTP Generator Improvement - 2 Mar 2022
D. Bottom of excavation shall be reviewed by the geotechnical professional prior to placing fill to evaluate whether the subgrade is suitable for fill placement.

3.05 PREPARATION OF UNSUITABLE EXCAVATION
A. Subgrade stabilization shall be provided in areas where unsuitable materials or soft subgrade conditions may prevent proper compaction of the subgrade materials.

B. Remove existing soil to a depth at least 2 feet below the bottom of excavation or bottom of unsuitable material, whichever is deeper.

C. If subgrade is wet or yielding, backhoe type equipment shall be used for sub-excavation such that construction equipment does not operate on exposed subgrade during excavation.

D. Geotextile for stabilization shall be placed over the undisturbed subgrade without gaps.

A 12-inch thick layer of Aggregate Base shall be placed over the geotextile fabric.

Aggregate Base shall be fully encased in the geotextile to reduce erosion potential.

3.06 PLACING AND COMPACTING FILL
A. Excavated material shall not be used for fill. Provide Structural Fill per Section 2.01.

B. Place in maximum 8-inch lifts and compact each lift to 90% relative compaction.

C. Jetting or ponding shall not be permitted for placement or compaction of fill materials.

D. Where fill is to be constructed on slopes steeper than 5:1, bench the fill into competent undisturbed materials as the fill progresses up the slope. Benches shall be sloped at least 2% into the slope and shall be of a width at least equal to the height of fill lift.

3.07 PLACING AND COMPACTING STRUCTURAL BACKFILL AND AGGREGATE BASE
A. Place structural backfill material around piping, structures, channels, and other areas, including authorized overexcavation areas, to the lines and grades shown or specified.

Do not exceed loose lifts of 8 inches.

B. Limits of Structural Backfill: Limits of structural backfill shall be at least 3 feet from edge of footing and shall extend at a 1:1 slope (H:V) to the finish grade.

C. Compact each lift to 95% relative compaction, unless otherwise shown in the drawings.

Stop structural backfill at least 6 inches below finished grade in all areas where topsoil is to be placed.

D. Backfill around concrete structures as specified in Section 030500.

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EARTHWORK 312300-8
City of SLO WTP Generator Improvement - 2 Mar 2022
E. Do not operate earthmoving equipment within 5 feet of walls of concrete structures.

Place and compact backfill adjacent to concrete walls with hand-operated tampers or other equipment that will not damage the structure.

3.08 MOISTURE CONTROL
During the compacting operations, maintain optimum practicable moisture content required for compaction purposes in each lift of the material. Drainage shall be provided such that surface water does not pond on pavements, slabs, or adjacent to foundations.

Maintain uniform moisture content throughout the lift. Insofar as practicable, add water to the material at the site of excavation. Supplement by sprinkling the material. At the time of compaction, the water content of the material shall be at optimum water content or within 2 percentage points above optimum. Aerate material containing excessive moisture by blading, discing, or harrowing to hasten the drying process.

3.09 SITE GRADING
Perform earthwork such that upper 3 feet of generator and fuel tank pad consist of imported non-expansive material and aggregate base. Shape, trim, and finish slopes of channels to conform to the slopes no steeper than 1:1 (H:V) and to the limits outlined in

3.03B. Remove exposed roots and loose rocks exceeding 3 inches in diameter. Round tops of banks to circular curves of not less than a 6-foot radius. Neatly and smoothly trim rounded surfaces. Do not overexcavate and backfill to achieve the proper grade.

END OF SECTION

DRAFT - NOT FOR CONSTRUCTION
TRENCHING, BACKFILLING, AND COMPACTING 312316-1
City of SLO WTP Generator Improvement - 2 Mar 2022
SECTION 312316 TRENCHING, BACKFILLING, AND COMPACTING
PART 1 - GENERAL

1.01 DESCRIPTION
This section includes materials, testing, and installation for pipeline and ductbank trench excavation, backfilling, and compacting. Use this specification in conjunction with the City of San Luis Obispo Standard Specifications and Engineering Standards; refer to Specification Section 19 for earthwork and section 26 for backfill material and Engineering Standard drawings 6020, 6030, and 6035 for Trench Details.

1.02 RELATED WORK SPECIFIED ELSEWHERE
A. Existing Conditions: General Provisions.

B. Protecting Existing Underground Utilities: 020120.

C. Cast in Place Concrete: 033000.

1.03 SUBMITTALS
A. Submit electronic copies of a report from a testing laboratory verifying that material contains less than 0.25% asbestos by weight or volume and conforms to the specified gradations or characteristics for pea gravel, granular material, imported sand, rock refill for foundation stabilization, and water. Submit asbestos test results with the submittals for materials gradation. Material gradation reports without the accompanying asbestos test results will be rejected as incomplete.

B. Submit method(s) of compaction including removal sequence of shoring where used.

1.04 TESTING FOR COMPACTION
A. The Owner will test for compaction as described below.

B. Determine the density of soil in place by the sand cone method, ASTM D1556 or by nuclear methods, ASTM D6938. Compaction tests will be performed for each lift or layer. If nuclear methods are used for in-place density determination, verify the accuracy with one sand cone and one maximum laboratory dry density, for every five nuclear tests taken if the backfill material is processed fill or visually consistent. More sand cones and densities will be required if the backfill material is visually variable. The minimum depth for the sand cone test hole shall be 12 inches. The minimum size shall be 8 inches, and size 16/30 or 10/20 silica sand shall be used.

C. Determine laboratory moisture-density relations of soils by ASTM D1557. If nuclear methods are used for in-place density determination, the compaction test results for maximum dry density and optimum water content shall be adjusted in accordance with

DRAFT - NOT FOR CONSTRUCTION
TRENCHING, BACKFILLING, AND COMPACTING 312316-2
City of SLO WTP Generator Improvement - 2 Mar 2022
ASTM D4718. This will be required for determination of percent relative compaction and moisture variation from optimum.

D. Determine the relative density of cohesionless soils by ASTM D4253 and D4254.

E. Sample backfill materials per ASTM D75.

F. "Relative compaction" is the ratio, expressed as a percentage, of the in-place dry density to the laboratory maximum dry density.

G. Compaction shall be deemed to comply with the specifications when no test falls below the specified relative compaction. The Contractor shall pay the costs for any retesting or additional testing of work not conforming to the specifications.

H. Where compaction tests indicate a failure to meet the specified compaction, the Owner will take additional tests every 25 feet in each direction until the extent of the failing area is identified. Rework the entire failed area until the specified compaction has been achieved.

1.05 PAVEMENT ZONE
The pavement zone includes the asphalt concrete and aggregate base pavement section placed over the trench backfill.

1.06 STREET ZONE/WTP ACCESS ROADS AND DRIVEWAYS
The street zone is the top 30 inches of the trench immediately below the pavement zone in paved areas. Where the depth of cover over the pipe does not permit the full specified thickness of the street zone, construct a thinner street zone, extending from the top of the pipe zone to the bottom of the pavement zone.

1.07 TRENCH ZONE
The trench zone includes the portion of the trench from the top of the pipe zone to the bottom of the street zone in paved areas or to the existing surface in unpaved areas. If the resulting trench zone is less than 24 inches thick, the street zone shall extend to the top of the pipe zone and there shall be no separate trench zone.

Pipe Diameter
Thickness of Pipe Zone
Above Top of Pipe
6 inches or smaller 6 inches
8 inches and larger 10 inches

1.08 PIPE BASE OR BEDDING
The pipe base or bedding shall be defined as a layer of material immediately below the bottom of the pipe or conduit and extending over the full trench width in which the pipe

DRAFT - NOT FOR CONSTRUCTION
TRENCHING, BACKFILLING, AND COMPACTING 312316-3
City of SLO WTP Generator Improvement - 2 Mar 2022
is bedded. Thickness of pipe base shall be as follows unless otherwise shown in the drawings or otherwise described in the specifications for the particular type of pipe installed.

Pipe Diameter Thickness of Pipe Base
Smaller than 4 inches 3 inches
4 inches through 16 inches 4 inches

1.09 MEASUREMENT AND PAYMENT
A. Payment for the work in this section, other than foundation stabilization, shall be included as part of the lump-sum bid amount stated in the Proposal.

B. Payment for foundation stabilization shall be made in accordance with Article 1.11 below.

PART 2 - MATERIALS

2.01 GENERAL
A. See the City of San Luis Obispo Standard Specifications and Engineering Standard Drawing 6020 Trench Detail #1 for backfill details.

2.02 GRANULAR MATERIAL FOR BACKFILL—SUBSEQUENT BACKFILL AND

STREET ZONE
Granular material or granular soil for backfill used above the pipe zone shall be free of organics, corrosives, clay, or other deleterious substances and conform to the City of San Luis Obispo Standard Specifications and Engineering standards Section 26-1.02G. The maximum particle size shall be 2 inches. A maximum of 10% shall pass a No. 200 sieve.

2.03 IMPORTED SAND--PIPE BEDDING AND INITIAL BACKFILL
A. Imported sand used in the pipe zone or for the pipe base shall conform to the City of San Luis Obispo Standard Specifications and Engineering Standards Section 26-1.02G and have the following gradation:

Sieve Size Percent Passing By Weight
1 inch 100
No. 4 80-95
No. 30 35-70
No. 200 15 Max.

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City of SLO WTP Generator Improvement - 2 Mar 2022
B. Imported sand shall have a minimum sand equivalent of 30 per ASTM D2419. Imported sand shall have a saturated resistivity greater than 1,000 ohm-cm per ASTM G187, a neutral pH, and chlorides less than 100 ppm.

2.04 GRAVEL AND CRUSHED ROCK--SUBSEQUENT BACKFILL AND STREET ZONE
A. Gravel or crushed rock material shall contain less than 0.25% asbestos by weight or volume and conform to the Standard Specifications for the California Department of Transportation Standard Specifications Section 26-1.02B for Class 2 Aggregate Base.

2.05 SAND-CEMENT SLURRY BACKFILL—SUBSEQUENT BACKFILL
Sand-cement slurry backfill shall consist of one sack (94 pounds) of Type I or II portland cement added per cubic yard of imported sand and sufficient water for workability.

Refer to City of San Luis Obispo Standard Specifications and Engineering Standard Section 77-1.02B.

2.06 ROCK REFILL FOR FOUNDATION STABILIZATION
Rock refill shall be crushed or natural rock containing less than 0.25% asbestos by weight or volume, conforming to the California Department of Transportation Standard Specifications Section 26-1.02B for Class 2 Aggregate Base.

2.07 WATER FOR COMPACTION
Water shall be free of organic materials and shall have a pH of 7.0 to 9.0, a maximum chloride concentration of 500 mg/L, and a maximum sulfate concentration of 500 mg/L.

Provide all water needed for earthwork. Provide temporary piping and valves to convey water from the source to the point of use.

Use of potable water from City water mains and fire hydrants is not allowed. Recycled water is available by permit for use at the recycled-water hydrants located within the City limits at various locations. Use of the recycled water is subject to the conditions of the Recycled-Water program, completion of required training, and payment of the permit fee.

2.08 UNDERGROUND PLASTIC WARNING TAPE FOR METAL PIPE
See Section 400775.

2.09 UNDERGROUND DETECTABLE METALLIC PIPE WARNING TAPE
See Section 400775.

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PART 3 - EXECUTION

3.01 SLOPING, SHEETING, SHORING, AND BRACING OF TRENCHES Trenches shall have sloping, sheeting, shoring, and bracing conforming with 29CFR1926, Subpart P--Excavations, CAL/OSHA requirements, and the General Provisions.

3.02 TRENCH EXCAVATION
A. Excavate the trench to the lines and grades shown in the drawings with allowance for pipe thickness, sheeting and shoring if used, and for pipe base or special bedding. If the trench is excavated below the required grade, refill any part of the trench excavated below the grade at no additional cost to the Owner with granular material. Place the refilling material over the full width of trench in compacted layers not exceeding 6 inches deep to the established grade with allowance for the pipe base or special bedding.

B. Trench widths in the pipe zone shall be as shown in the drawings. If no details are shown, width shall be per City Standards.

3.03 TRENCH EXCAVATION IN BACKFILL AND EMBANKMENT AREAS A. Construct and compact the embankment to an elevation of 1-foot minimum over the top of the largest pipe or conduit to be installed.

B. Excavate trench in the compacted backfill or embankment.

3.04 LOCATION OF EXCAVATED MATERIAL
A. During trench excavation, place the excavated material only within the working area. Do not obstruct any roadways or streets. Do not place trench spoil over pipe, buried utilities, manholes, or vaults. Conform to federal, state, and local codes governing the safe loading of trenches with excavated material.

3.05 DEWATERING
Provide and maintain means and devices to remove and dispose of water entering the trench excavation during the time the trench is being prepared for the pipe laying, during the laying of the pipe, and until the backfill at the pipe zone has been completed. These provisions shall apply during both working and nonworking hours, including lunchtime, evenings, weekends, and holidays. Dispose of the water in a manner to prevent damage to adjacent property and in accordance with regulatory agency requirements. Do not drain trench water through the pipeline under construction.

3.06 FOUNDATION STABILIZATION
A. After the required excavation has been completed, the Owner will inspect the exposed subgrade to determine the need for any additional excavation. It is the intent that

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additional excavation be conducted in all areas within the influence of the pipeline where unacceptable materials exist at the exposed subgrade. Overexcavation shall include the removal of all such unacceptable material that exist directly beneath the pipeline to a width 24 inches greater than the pipe outside diameter and to the depth required.

B. Place filter fabric on the bottom of the trench and up the sides a sufficient height to retain rock refill material. Backfill the trench to subgrade of pipe base with rock refill material for foundation stabilization. Place the foundation stabilization material over the full width of the trench and compact in layers not exceeding 6 inches deep to the required grade. Foundation stabilization work shall be executed in accordance with a change order.

C. Rock refill used by the Contractor for his convenience will not be cause for any additional payment.

3.07 BACKFILL COMPACTION
A. Unless otherwise shown in the drawings or otherwise described in the specifications for the particular type of pipe installed, relative compaction in pipe trenches shall be as follows:

1. Pipe Zone: 90% relative compaction.

2. Backfill in Trench Zone Not Beneath Paving: 90% relative compaction. Compact backfill within embankment above the pipe zone to the same relative compaction as the adjacent embankment as specified in Section 312300.

3. Backfill in Trench Zone to Street Zone in Paved Areas: 90% relative compaction.

4. Backfill in Street Zone in Paved Areas: 95% relative compaction.

5. Rock Refill for Foundation Stabilization: 80% relative density.

6. Refill for Overexcavation: 80% relative density.

B. Compact trench backfill to the specified relative compaction. Compact by using mechanical compaction, or hand tamping. Do not use high-impact hammer-type equipment except where the pipe manufacturer warrants in writing that such use will not damage the pipe.

C. Compact material placed within 12 inches of the outer surface of the pipe by hand tamping only.

D. Do not use any axle-driven or tractor-drawn compaction equipment within 5 feet of building walls, foundations, and other structures.

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3.08 MATERIAL REPLACEMENT
Remove and replace any trenching and backfilling material that does not meet the specifications, at the Contractor's expense.

END OF SECTION

DRAFT - NOT FOR CONSTRUCTION
EQUIPMENT, PIPING, DUCT & VALVE IDENTIFICATION 400775-1 City of SLO WTP Generator Improvement - 2 Mar 2022
SECTION 400775 EQUIPMENT, PIPING, DUCT, AND VALVE IDENTIFICATION PART 1 - GENERAL

1.01 DESCRIPTION
This section includes materials and installation of markers, labels, and signs for pipes, ducts, and valves; for mechanical equipment; for hazardous materials warnings; and for miscellaneous plant services.

1.02 SUBMITTALS
A. Submit shop drawings in accordance with City Standard Specifications.

B. Submit manufacturer's catalog data and descriptive literature describing materials, colors, letter size, and size of labels.

PART 2 - MATERIALS

2.01 LABELS FOR EXPOSED PIPING
A. Labels for piping shall bear the full piping system name as shown in the drawings.

Provide separate flow directional arrows next to each label. Color, size, and labeling shall conform to ANSI A13.1 and Z535.1. Labels for piping inside buildings shall be vinyl cloth: W. H. Brady Co. B-500 vinyl cloth, Seton Name Plate Corporation Pipe Markers, or equal. Labels for piping located outdoors shall be weather- and UV-resistant acrylic plastic and shall be W. H. Brady Co. B-946, Seton Name Plate Corporation Pipe Markers, or equal.

B. Alternatively, provide preprinted, semirigid, snap-on, color-coded pipe markers. Color, size, and labeling shall conform to ANSI A13.1 and Z535.1. Label shall cover 360 degrees (minimum). Labels shall be fabricated of weather- and UV-resistant acrylic plastic. Labels shall be Seton Nameplate Corporation SetMark pipe marks or equal.

2.02 LABELS FOR MECHANICAL EQUIPMENT
Provide a label for each piece of mechanical equipment. Label shall show the equipment name and tag number as shown in the drawings. Labels shall be 1 1/2 inches (minimum) by 4 inches (minimum) brass, aluminum, or 1/8-inch-thick fiberglass tags: Brady B-120 Fiber-Shield, Seton Style 2065, or equal.

2.03 LABELS FOR EXPOSED TANKS
Signs shall be weather- and UV-resistant. Labels shall be Brady B-946, Seton Name Plate Corporation PSPL, or equal. Minimum size shall be 7 inches by 10 inches. Provide a sign on each tank bearing the tank tag number and the name of the liquid stored.

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EQUIPMENT, PIPING, DUCT & VALVE IDENTIFICATION 400775-2 City of SLO WTP Generator Improvement - 2 Mar 2022

2.04 LABELS FOR AUTOMATIC START/STOP EQUIPMENT
Provide a sign reading "CAUTION--EQUIPMENT STARTS AND STOPS AUTOMATICALLY" on each piece of equipment listed below. Signs shall be pressuresensitive vinyl with adhesive for application to equipment. Signs mounted on adjacent walls are also acceptable. Size shall be 10 inches by 7 inches minimum. Products: Seton, Brady, or equal.

Equipment Type Tag Number
Generator

2.05 UNDERGROUND PLASTIC WARNING TAPE FOR METALLIC PIPE Provide permanent, bright-colored, continuous-printed plastic tape, intended for direct burial service, not less than 6 inches wide by 3.5 mils thick. Provide tape with printing which most accurately indicates type of service of buried pipe. Provide the following colored tape for the various piping services:

Service Color
Electric Red
Fuel Oil, Gasoline Yellow
PART 3 - EXECUTION

3.01 INSTALLING PIPE LABELS
A. Provide label and flow arrow at each connection to pumps or other mechanical equipment, at wall boundaries, at tees and crosses, and at 20-foot centers on straight runs of piping.

B. On piping having external diameters less than 6 inches (including insulation, if any), provide full-band pipe markers, extending 360 degrees around pipe at each location.

C. On piping having external diameters of 6 inches and larger (including insulation, if any), provide either full-band or strip-type pipe markers but not narrower than three times letter height (and of required length), fastened by one of the following methods:

1. Laminated or bonded application of pipe marker to pipe or insulation.

2. Strapped-to-pipe or insulation application of semirigid type with Type 304 or 305 stainless steel bands.

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EQUIPMENT, PIPING, DUCT & VALVE IDENTIFICATION 400775-3 City of SLO WTP Generator Improvement - 2 Mar 2022

3.02 INSTALLING VALVE AND EQUIPMENT LABELS
A. Attach labels to the valve or piece of equipment with Type 304 or 316 stainless steel chains or wires.

B. Attach valve labels to the valve handwheels. If the valve has no handwheel, attach the label to the valve by tying the tag wire or chain around the operating shaft or nut.

3.03 INSTALLING MISCELLANEOUS SIGNS
Attach per sign manufacturer's recommendations and per CAL/OSHA requirements.

3.04 INSTALLING WALL AND DOOR SIGNS
Attach to walls and doors using epoxy adhesive.

3.05 INSTALLING LABELS FOR AUTOMATIC START/STOP EQUIPMENT AND

HAZARDOUS MATERIALS WARNING SIGNS FOR EQUIPMENT
A. Attach signs for exposed equipment directly to the equipment.

3.06 INSTALLING UNDERGROUND PLASTIC WARNING TAPE FOR METAL PIPE During backfilling of each exterior underground piping system, install continuous underground-type plastic line marker, located directly over buried line at 6 to 8 inches above the top of the pipe. Where multiple small lines are buried in common trench and do not exceed overall width of 16 inches, install single line marker.

3.07 INSTALLING UNDERGROUND DETECTABLE METALLIC PIPE WARNING TAPE
Install tape 4 to 6 inches below finished ground surface, located directly over buried pipelines. Where multiple small pipelines are buried in a common trench and do not exceed an overall width of 16 inches, install a single marker tape.

END OF SECTION

CHORRO/MURRAY/MEINECKE

SEWER REPLACEMENT PROJECT
1 OF 1
0 SCALE IN FEET
800

PROJECT

LOCATION
N

U P R R

FOOTHILL

CALIFORNIA
CHORRO
GRAND

CALIFORNIA

SANTA ROSA

JOHNSON
MARSH
PISMO

JOHNSON
BROAD
SOUTH

HIGUERA

MADONNA
PRADO
PRADO

TANK FARM
BROAD
LAUREL
ORCUTT

TANK FARM
ORCUTT
BROAD

SOUTH HIGUERA

LOS OSOS VALLEY ROAD
US HIGHWAY 101

CAL POLY

LAGUNA LAKE

STENNER
CREEK ROAD Project
Location 0 2000' 4000'
Water Treatment Plant
Generator Improvement Project

R ______
RESOLUTION NO. _____ (2022 SERIES)

A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF SAN LUIS

OBISPO, CALIFORNIA, AUTHORIZING USE OF WATER FUND

UNASSIGNED WORKING CAPITAL FOR CONSTRUCTION OF THE

WATER TREATMENT PLANT GENERATOR IMPROVEMENT
PROJECT, SPECIFICATION NO. 1000126
WHEREAS, to ensure that water is safe to drink, the U.S. Environmental Protection Agency and the State Water Resources Control Board prescribe regulations for safe and reliable services provided by public water systems; and WHEREAS, the City’s 2015 Potable Water Distribution System Operations Master Plan was approved by the City Council in 2016. The Master Plan discussed the need for emergency power provided by a generator to water pumping facilities associated with the water distribution network and water storage tanks including the Water Treatment Plant Transfer Pump Station; and
WHEREAS, the City’s 2020 Urban Water Management Plan (Chapter 6: Water Supply Reliability & Drought Risk Assessment) identifies the need to maintain water service during Pacific Gas & Electric (PG&E) Public Safety Power Shutoff (PSPS) events and a potential catastrophic fire event, and describes installation of a temporary generator at the Water Treatment Plant, to be replaced by a permanent generator at a later date; and
WHEREAS, the provision of additional temporary or permanent emergency generators, requiring engineering design and inspection services, and construction at the Water Treatment Plant is identified as a 2021-2023 Financial Plan Capital Improvement Project (CIP); and
WHEREAS, on August 21, 2018, the San Luis Obispo City Council authorized an application to the California Department of Emergency Services (Cal OES) Hazard Mitigation Grant Program (HMGP) for Federal Emergency Management Agency (FEMA) funding in support of a standby generator and supporting infrastructure to power the Water Treatment Plant in the event of a power outage (Resolution No. 10931), which was approved with a federal share of $765,000 of the Project cost, with a local 25 percent match of $255,000; and
WHEREAS, on August 20, 2019, the City Council approved a budget of $2,000,000 including design, equipment acquisition, construction costs, and contingencies, from the Water Fund, unassigned Working Capital to fund the Water Fund portion of the Water and Wastewater Emergency Power Supply Acquisition needs, and authorized “off cycle” fleet additions for new portable generator rental, lease, and/or purchases; and

Resolution No. _____ (2022 Series) Page 2
R ______
WHEREAS, an updated HMGP application packet with the revised scope and associated increase in cost was submitted March 22, 2020 to Cal OES and approved by FEMA on June 9, 2021, including an amended scope of work and an additional $630,000 in federal HMGP funds for the Project, resulting in a total of $1,395,000 in federal funds; and
WHEREAS, an additional $465,000 for the Project was approved in the 2021-2023 Financial Plan and the total available budget for the Project is $2,638,082 including $1,395,000 in federal funds, and the total Project cost is estimated at $3,590,000 requiring an additional $951,918 to fund Project construction; and WHEREAS, a balance of over $10 million is available from Water Fund, unassigned Working Capital to fund the Project.

NOW, THEREFORE, BE IT RESOLVED by the Council of the City of San Luis Obispo as follows:

SECTION 1. Budget. The budget of $951,918 will be moved to the Water Treatment Plant Generator Improvement Project, Specification No. 1000126, as it is a high priority and critical City project.

Resolution No. _____ (2022 Series) Page 3
R ______
SECTION 2. Environmental Review. Construction of this project is exempt from the California Environmental Quality Act (CEQA) per categorical exemption 15301, Existing Facilities. The proposed Water Treatment Plant Generator Improvement Project is located within the existing Water Treatment Plant and the generator would operate at times when power is not available. Therefore, the project would not result in an expansion of the existing use.

Upon motion of Council Member ___________, seconded by Council Member ___________, and on the following roll call vote:

AYES:

NOES:

ABSENT:

The foregoing resolution was adopted this _____ day of _______________ 2022. ___________________________
Mayor Erica A. Stewart
ATTEST:
______________________
Teresa Purrington
City Clerk
APPROVED AS TO FORM:
______________________
J. Christine Dietrick
City Attorney
IN WITNESS WHEREOF, I have hereunto set my hand and affixed the official seal of the City of San Luis Obispo, California, on ______________________. ___________________________
Teresa Purrington
City Clerk

Item 5f
Department: Public Works
Cost Center: 6102
For Agenda of: 6/7/2022
Placement: Consent
Estimated Time: N/A
FROM: Matt Horn, Public Works Director
Prepared By: Hai Nguyen, Engineer III
SUBJECT: AWARD VERDE / LUNETA / RAMONA / BROAD SEWER
REPLACEMENT, SPECIFICATION NO. 1000091

RECOMMENDATION

1. Award the construction contract for Verde / Luneta / Ramona / Broad Sewer Replacement, Specification Number 1000091 to Souza Engineering Contracting in the amount of $1,467,822; and

2. Approve the following budget transfers:
a) $360,000 from the Sewer Fund Undesignated Capital account to the project account; and
b) $150,000 from the Water Fund Undesignated Capital account to the project account; and

3. Authorize the City Engineer to execute Contract Change Orders within available project budget.

DISCUSSION
Background
On March 15, 2022, the City Council authorized staff to advertise for construction bids for the Verde/Luneta/Ramona/Broad Sewer Replacement (Council Agenda Report) and to authorize the City Manager to award the contract if the lowest responsible bid was below the publicly disclosed funding amount of $1,156,000. The project bid documents included a Base Bid and an Additive Alternative.

On April 28, 2022, four bids were received and opened (Attachment A). Souza Engineering Contracting Inc. provided the lowest responsive bid for the Base Bid and Additive Alternative A in the amount of $1,467,822. Since the lowest bid amount exceeds the delegated authority provided to the City Manager by $311,822, staff is returning to Council to request authorization to award the contract. The increase in construction costs may be attributed to the high demand for this type of contract work in the region, and the scope of work added to replace a segment of water main along Broad Street. Prior to the project bid opening deadline, staff identified 268 linear feet of existing cast iron waterline that is too close to the new sewer main being proposed. As part of the sequence of construction, the interfering portions of water main on Broad Street must be reconstructed after the new sewer mains are installed.

Item 5f
The Contractor’s references, license, and registration with the Department of Industrial Relations have been verified. Staff has evaluated the bid and recommends contract award of the Base Bid and Additive Alternative A to Souza Engineering Contracting (Attachment B) and budget transfers be completed to fund the project.

Bid Summary Base Bid
Additive
Alternative A Total Bid
1 Engineer’s
Estimate $1,040,000 $116,000 $1,156,000
2 Souza Engineering
Contracting $1,360,489 $107,333 $1,467,822
3 John Madonna
Construction $2,048,030 $187,590 $2,235,620
4 Specialty
Construction $2,471,517 $201,406 $2,672,923
5 Raminha
Construction $2,413,420 $328,700 $2,742,120
Previous Council or Advisory Body Action
On March 15, 2022, the City Council authorized staff to advertise for bids for Verde/Luneta/Ramona/Broad Sewer Replacement.

Policy Context
Per the March 15, 2022, Council Agenda Report, the project must be awarded by Council if the construction contract is higher than the publicly disclosed funding amount.

Public Engagement
Public engagement was conducted during the initial identification of this Project to be included in the 2019-21 and 2021-23 Financial Plans.

CONCURRENCE
This project has the concurrence of the Utilities Department.

ENVIRONMENTAL REVIEW
The project consists of the replacement of existing water and sewer mains, and a portion of the project site is located within a potentially archaeologically sensitive zone (within 200 feet of Old Garden Creek). Based on the scope and location of the Project, it is consistent with previously adopted Initial Study/Mitigated Negative Declaration (IS/MND) ER10-07. Mitigation measures approved through IS/MND ER10-07 are included in the Project’s specifications and will be followed by the City’s contractor, consistent with the requirements of the California Environmental Quality Act (CEQA).

Item 5f

FISCAL IMPACT
Budgeted: Yes Budget Year: 2019-21 & 2021-23
Funding Identified: Yes
Fiscal Analysis:

Funding
Sources
Total Budget
Available
Current
Funding
Request
Remaining
Balance
Annual
Ongoing
Cost
General Fund
State
Federal
Fees
Sewer Fund $2,323,815 $1,732,000 $591,815
Water Fund $1,768,902 $150,000 $1,618,902
Total $4,092,717 $1,882,000 $2,210,717
602 Sewer Fund 602 Sewer Fund 601 Water Fund
Total Project Bid $1,085,000 $275,489 $107,333 $1,467,822 Contingencies (25%) $271,250 $68,872 $27,000 $367,122
Total for Construction $1,356,250 $344,361 $134,333 $1,834,944 Materials Testing $5,250 $5,639 $5,667 $16,556
Archaeological Monintoring $10,000 $10,000 $10,000 $30,000 Printing $500 $0 $0 $500
Total Project Cost $1,372,000 $360,000 $150,000 $1,882,000 Current Project Balance: $1,372,218 $951,597 $1,768,902 $4,092,717 Remaining Balance: $218 $591,597 $1,618,902 $2,210,717
Verde/Luneta/Ramona/Broad Sewer Replacement Specification No. 1000091 Project Total
Costs
Project Account
(1000091)
Sewer Fund
Undesignated Capital
(602-9501-71501)
Water Fund
Undesignated Capital
(601-9501-71501)
Underground utility projects are considered high-risk for increased funding needs due to many unknown subsurface conditions. Historically, waterline replacement projects require more contingencies funds (20%-25%) to cover the additional cost of modifying the project work due to previously unknown utility conflicts and hazardous conditions or materials encountered during construction. Staff is requesting 25% contingencies for this project.

Funding for this project is available in the Project Account (1000091) which has a current balance of $1,372,218. Staff is recommending a transfer of $360,000 from the Sewer

Item 5f
Fund Undesignated Capital and $150,000 from Water Fund Undesignated Capital to fund this project.

ALTERNATIVES
The City Council could deny the request to award the project. Staff does not recommend this option, as the sewer and water mains included in this project continue to deteriorate and pose a high risk of catastrophic failure, requiring expensive repairs.

ATTACHMENTS
A – Bid Results (1000091)
B – Draft Agreement with Souza Engineering Contracting Inc. (1000091)

VERDE/LUNETA/RAMONA/BROAD SEWER REPLACEMENT, SPECIFICATION NO. 1000091 Bid Opening: 4/28/2022 UNIT TOTAL UNIT TOTAL UNIT TOTAL UNIT TOTAL No. ITEM UNIT QUAN PRICE PRICE PRICE PRICE PRICE PRICE PRICE PRICE 1 TRAFFIC CONTROL PLAN AND IMPLEMENTATION LS 1 $31,000.00 $31,000.00 $120,000.00 $120,000.00 $330,000.00 $330,000.00 $100,000.00 $100,000.002 POTHOLING LS 1 $13,000.00 $13,000.00 $14,000.00 $14,000.00 $47,500.00 $47,500.00 $45,000.00 $45,000.003 REPLACE TRAFFIC STRIPING & MARKERS LS 1 $10,330.00 $10,330.00 $12,600.00 $12,600.00 $21,000.00 $21,000.00 $6,500.00 $6,500.004 COMPLY WITH OSHA LS 1 $65,000.00 $65,000.00 $403,700.00 $403,700.00 $30,000.00 $30,000.00 $75,000.00 $75,000.00 5 COMPLY WITH MITIGATION MEASURES AND ARCHAEOLOGICAL MONITORING PLAN LS 1 $2,000.00 $2,000.00 $5,000.00 $5,000.00 $5,600.00 $5,600.00 $10,000.00 $10,000.006 ABANDON SEWERLINE, MANHOLES AND FACILITIES LS 1 $5,300.00 $5,300.00 $3,000.00 $3,000.00 $9,500.00 $9,500.00 $20,000.00 $20,000.007 BYPASS PUMPING LS 1 $21,000.00 $21,000.00 $96,000.00 $96,000.00 $132,000.00 $132,000.00 $75,000.00 $75,000.008 RESTORATION OF PRIVATE PROPERTY LS 1 $41,460.00 $41,460.00 $15,000.00 $15,000.00 $11,600.00 $11,600.00 $40,000.00 $40,000.009 COMPLY WITH NIGHT WORK PERMIT LS 1 $7,000.00 $7,000.00 $5,000.00 $5,000.00 $16,000.00 $16,000.00 $5,000.00 $5,000.00 10 REPAIR DOUBLE BOX CULVERT IF DAMAGE BY HDD OPERATIONS LS 1 $7,500.00 $7,500.00 $10,000.00 $10,000.00 $580.00 $580.00 $10,000.00 $10,000.00 11 ROCK EXCAVATION CY 1000 $42.00 $42,000.00 $100.00 $100,000.00 $235.00 $235,000.00 $50.00 $50,000.00 12 REPLACE WATER WELL AND COVER EA 1 $500.00 $500.00 $1,500.00 $1,500.00 $916.00 $916.00 $2,500.00 $2,500.00 13 REPLACE MONUMENT AND WELL EA 4 $1,200.00 $4,800.00 $3,000.00 $12,000.00 $3,200.00 $12,800.00 $2,500.00 $10,000.0014 INSTALL NEW 6" HDPE SEWERLINE BY PIPE BURSTING THROUGH EXISTING SEWERLINE LF 174 $220.00 $38,280.00 $205.00 $35,670.00 $185.00 $32,190.00 $300.00 $52,200.0015 INSTALL NEW 8" HDPE SEWERLINE BY PIPE BURSTING THROUGH EXISTING SEWERLINE LF 68 $300.00 $20,400.00 $305.00 $20,740.00 $480.00 $32,640.00 $310.00 $21,080.0016 REMOVE EXISTING SEWERLINE AND INSTALL NEW 8" HDPE SEWERLINE BY OPEN TRENCHING LF 911 $166.00 $151,226.00 $150.00 $136,650.00 $340.00 $309,740.00 $400.00 $364,400.00 17 REMOVE EXISTING SEWERLINE AND INSTALL NEW 10" HDPE SEWERLINE BY OPEN TRENCHING LF 634 $257.00 $162,938.00 $280.00 $177,520.00 $510.00 $323,340.00 $550.00 $348,700.0018 INSTALL NEW 10" HPDE SEWERLINE BY OPEN TRENCHING LF 441 $324.00 $142,884.00 $350.00 $154,350.00 $531.00 $234,171.00 $680.00 $299,880.0019 INSTALL NEW 10" HPDE SEWERLINE BY HDD LF 30 $482.00 $14,460.00 $1,100.00 $33,000.00 $1,250.00 $37,500.00 $2,000.00 $60,000.0020 INSTALL NEW 12" HPDE SEWERLINE BY OPEN TRENCHING LF 628 $487.00 $305,836.00 $600.00 $376,800.00 $630.00 $395,640.00 $720.00 $452,160.0021 INSTALL NEW MANHOLE EA 9 $19,000.00 $171,000.00 $20,000.00 $180,000.00 $13,500.00 $121,500.00 $15,000.00 $135,000.00 22 INSTALL COATING ON NEW MANHOLE EA 9 $2,650.00 $23,850.00 $5,600.00 $50,400.00 $2,700.00 $24,300.00 $6,000.00 $54,000.00 23 REMOVE EXISTING MANHOLE EA 7 $1,200.00 $8,400.00 $2,200.00 $15,400.00 $6,800.00 $47,600.00 $2,500.00 $17,500.0024 REMOVE EXISTING AND INSTALL NEW CLEANOUT EA 2 $2,200.00 $4,400.00 $3,000.00 $6,000.00 $4,200.00 $8,400.00 $4,000.00 $8,000.00 25 CONNECT EXISTING SEWER LATERAL TO SEWER MAIN EA 33 $1,925.00 $63,525.00 $1,900.00 $62,700.00 $1,500.00 $49,500.00 $4,500.00 $148,500.00 26 RE‐GRADE SEWER LATERAL BEYOND 5 FEET LF 10 $240.00 $2,400.00 $100.00 $1,000.00 $250.00 $2,500.00 $300.00 $3,000.00 $1,360,489.00 $2,048,030.00 $2,471,517.00 $2,413,420.00 27 TRAFFIC CONTROL PLAN AND IMPLEMENTATION LS 1 $4,900.00 $4,900.00 $10,900.00 $10,900.00 $22,000.00 $22,000.00 $30,000.00 $30,000.0028 POTHOLING LS 1 $1,800.00 $1,800.00 $6,400.00 $6,400.00 $4,000.00 $4,000.00 $15,000.00 $15,000.00 29 REPLACE TRAFFIC STRIPING & MARKERS LS 1 $1,035.00 $1,035.00 $1,100.00 $1,100.00 $1,000.00 $1,000.00 $6,000.00 $6,000.0030 COMPLY WITH OSHA LS 1 $1,000.00 $1,000.00 $2,900.00 $2,900.00 $4,000.00 $4,000.00 $12,500.00 $12,500.0031 COMPLY WITH MITIGATION MEASURES AND ARCHAEOLOGICAL MONITORING PLAN LS 1 $300.00 $300.00 $7,000.00 $7,000.00 $5,600.00 $5,600.00 $6,000.00 $6,000.0032 ABANDON WATERLINE, WATER VALVES AND FACILITIES LS 1 $6,000.00 $6,000.00 $1,500.00 $1,500.00 $5,000.00 $5,000.00 $20,000.00 $20,000.0033 8 INCH PVC WATERLINE LF 268 $161.00 $43,148.00 $280.00 $75,040.00 $307.00 $82,276.00 $450.00 $120,600.0034 WATERLINE TIE IN AND APPURTENANCES AT RAMONA & BROAD LS 1 $14,333.00 $14,333.00 $25,400.00 $25,400.00 $19,000.00 $19,000.00 $30,000.00 $30,000.0035 WATERLINE TIE IN AND APPURTENANCES AT RAMONA & MEINECKE LS 1 $9,700.00 $9,700.00 $16,750.00 $16,750.00 $14,000.00 $14,000.00 $28,000.00 $28,000.0036 WATERLINE TIE IN AND APPURTENANCES AT 55 BROAD LS 1 $8,500.00 $8,500.00 $16,000.00 $16,000.00 $14,000.00 $14,000.00 $25,000.00 $25,000.0037 TYPE 2 WATER SERVICE TIE IN EA 1 $2,600.00 $2,600.00 $5,100.00 $5,100.00 $8,500.00 $8,500.00 $14,000.00 $14,000.00 38 REPLACE EXISTING WATER METER BOX EA 1 $845.00 $845.00 $2,400.00 $2,400.00 $3,700.00 $3,700.00 $3,000.00 $3,000.00 39 FIRE HYDRANT EA 1 $13,000.00 $13,000.00 $16,900.00 $16,900.00 $18,000.00 $18,000.00 $18,500.00 $18,500.00 40 BLUE FIRE HYDRANT MARKER EA 1 $172.00 $172.00 $200.00 $200.00 $330.00 $330.00 $100.00 $100.00 $107,333.00 $187,590.00 $201,406.00 $328,700.00
$1,467,822.00 $2,235,620.00 $2,672,923.00 $2,742,120.00 Specialty Construction Raminha Construction
BASE BID TOTAL
John Madonna Construction
TOTAL PROJECT BID
BASE BID
Souza Engineering Contracting
ADDITIVE ALTERNATE "A" BID TOTAL