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c. Industrial Safety Supply Corporation.
B. Material
1. Acid and alkali-resistant polyethylene.
2. 3” wide.
3. 0.005” thick.
4. 1,500 psi strength and 140% elongation value.
C. Color the same as the background colors as specified in Section 15050 and inscribe with the words “CAUTION—PIPE BURIED BELOW”.
2.04 VALVE IDENTIFICATION
A. Fabricate of stainless steel and inscribed with the specified valve number stamped in 1/4” high letters.
B. The label shall be of 1/16-inch thick stainless steel with a minimum size of 2 inches.
C. See Drawings for valve designation system.
PART 3 - EXECUTION
3.01 PIPING IDENTIFICATION
A. Pipe Coding
1. After application of the specified coating and insulation systems to new or existing piping, as specified in Section 09960, identify exposed piping, interior and exterior, and piping in ceiling spaces, pipe trenches, pipe chases and valve boxes identified with plastic markers.
2. Locate legend markers and directional arrows at each side of walls, floors and ceilings, at one side of each piece of equipment, at piping intersections, and at approximately 50’ centers.
B. Plastic Tracer Tape
1. Provide a single line of plastic tracer tape as specified in this Section, 2.5 feet above the centerline of each buried pipe.
2. Spread tape flat with message side up before backfilling.
C. Polyethylene Magnetic Tracer Tape
1. Install 12-18” below ground and parallel to all buried pipes.
3.02 VALVE IDENTIFICATION
A. Label all valves designated with a valve number where valve numbers are indicated on the Drawings.
B. Each label shall be permanently attached to the valve using stainless steel screws, stainless steel wire and connectors, or another method subject to approval.
C. Install tags on valve flanges in a position visible from floor level.
D. For flangeless valves 8” in diameter and larger, attach tags to the valve body by self-tapping corrosion resistant metal screws.
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E. For flangeless valves 6” in diameter and smaller, attach tags to the valve stem by stainless steel wire. Use 0.063” wire minimum.
END OF SECTION
West Yost – March 2023 15095 - 1 City of Ukiah
592-50-22-14 Piping Appurtenances Thickening and Dewatering Improvements
SECTION 15095
PIPING APPURTENANCES
PART 1 - GENERAL
1.01 SECTION INCLUDES
A. Level gauges and pressure gauges.
B. Exclusions
1. Temperature, pressure, and flow measuring devices used for instrumentation are specified in Division 16.
1.02 REFERENCED SECTIONS
A. The following Sections are referenced in this Section
1. Section 01330 – Submittals
1.03 SUBMITTALS
A. Comply with Section 01330.
PART 2 - PRODUCTS
2.01 PRESSURE DEVICES
A. Analog dial-type pressure gauges and accessories to be furnished and installed at the locations indicated on the drawings and in the Gauge Schedule included herein.
B. Provide in accordance with the schedule, whether or not indicated in the drawings.
C. Gauges to be furnished by an equipment supplier, either with an item of equipment or as a component of an equipment package, are covered in the applicable equipment section.
D. Gauge piping and fittings:
1. Tubing
a. Material:
1) ASTM A269, Grade TP 316, annealed, max hardness Rockwell B80
b. Min wall thickness:
Tube OD, inches Wall Thickness, inches
1/4 - 3/8 0.065
1/2 - 7/8 0.083
1 - 2 0.109
2. Fittings
a. Compression type
b. Material:
1) AISI Type 316 stainless steel.
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c. Manufacturers:
1) Crawford “Swagelok”,
2) Parker Hannifin “CPI”, “Ferulok”,
3) or equal.
E. Pressure Gauges
1. Provide where shown on the Drawings and as specified. Contractor shall be responsible for all gauges shown on the drawings, even if a gauge is not scheduled herein.
2. Select so that the normal operating pressure falls between 50 and 80% of full scale.
3. Components
a. Face: 4-inch with white background and black markings, 270º movement, indicate units of measurement.
b. Accuracy: 1.0% accuracy, full scale.
c. Bottom stem mounting.
d. Type 316 stainless steel bourdon tube.
e. Case
1) 300 series stainless steel case, shatterproof glass, and a 1/2” NPT bottom connection.
2) For gauges installed outdoors, provide weather-proofed cases.
4. For air, gas, and low pressure services (0–10’), provide premium grade, heavyduty bourdon-tube units (bellow type for vacuum) with Delrin bushings and pinion, and stainless steel sector.
5. For liquid service, comply with above, except provide with an internal pulsation dampening system consisting of either a glycerin fill or a silicone fluid fill. Do not use snubbers or orifices.
6. Manufacturers, one of the following or equal:
a. Ashcroft Duragauge Fig. 1009.
b. Ametek 1535.
F. Gauge Accessories:
1. Isolating Valves
a. Provide each gauge with an isolating, threaded-end eccentric plug valve.
Furnish valve with Type 316 stainless steel body, plug, bearings and stem.
Packing: Buna-N or PTFE. Manufacturers: Dezurik Model PEC, Clow or equal.
2. Gauge Isolators
a. Provide a suitable isolator shall be provided for each gauge, as indicated in the Gauge Schedule included herein, and for all gauges located on chemical lines and all gauges located on wastewater or other solids bearing liquids.
b. Unless otherwise specified, provide a diaphragm seal (DS). 1) Type: Thread-attached type with removable AISI Type 316 stainless steel diaphragm, zinc or cadmium plated carbon steel upper housing, and bronze lower housing.
2) Upper housing: Contour to fit. Provide a seat and seal for the diaphragm. Design to permit removal of the gauge with the system under pressure.
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3) Lower housing: Provide with a tapped and plugged 1/4-inch NPT flushing connection.
c. Provide an inline, flow-thru, annular seal, flange type gauge isolator at the locations indicated on the drawings or in the Gauge Schedule included herein, designation AS.
1) Components: Carbon steel housing, carbon steel assembly flanges, and Buna-N flexible cylinder, filled with silicone oil. 2) Furnish suitable for installation between two flat faced ANSI B16.1, Class 125 cast iron pipe flanges, and tapped for a 1/2-inch NPT gauge connection.
d. Manufacturers, one of the following or equal:
1) Ronningen-Petter “Iso-Ring”.
2) Red Valve “Series 40 Flanged Sensor”.
e. Assemble, fill with a suitable fluid, and calibrate as a unit at the factory each isolator, diaphragm seal, and gauge served.
PART 3 - EXECUTION
3.01 INSTALLATION OF PRESSURE GAUGES
A. Install at the locations indicated on the drawings. Configure to the requirements indicated on the drawings and the Gauge Schedule located herein.
B. Unless otherwise specified herein, do not direct tap pipe walls for installation of gauge connections.
C. Install all gauges and diaphragm in the vertical upright position.
1. Use Teflon thread tape or Teflon thread sealer to assemble threaded connections.
2. Make all connections free from leaks.
D. Purge lines of trapped air at gauge location prior to installation of the gauge or diaphragm seal.
3.02 GAUGE TAPS
A. Provide on the suction and discharge of pumps, fans, compressors, vacuum pumps and blowers.
B. Type: 1/2” gauge valve attached by a threaded nipple to the pipeline, duct, or equipment.
END OF SECTION
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West Yost – March 2023 15097 - 1 City of Ukiah
592-50-22-14 Seismic Restraints for Piping Thickening and Dewatering Improvements
SECTION 15097
SEISMIC RESTRAINTS FOR PIPING
PART 1 - GENERAL
1.01 SECTION INCLUDES
A. Seismic restraints for bracing all piping systems specified in Section 15050.
1.02 REFERENCED SECTIONS
A. The following Sections are referenced in this Section
1. Section 01330 – Submittal Procedures
2. Section 01612 – Seismic Design Criteria
3. Section 05500 – Miscellaneous Metals
4. Section 15050 – Piping Systems
1.03 DEFINITIONS
A. Longitudinal Direction: Direction parallel to the pipe axis.
B. Lateral Direction: Direction perpendicular to the pipe axis.
1.04 OPERATING CONDITIONS
A. Provide seismic restraints, specified in this section, to resist pipe movements and loads occurring as a result of an earthquake or other seismic event.
B. Unless otherwise specified, brace all piping to resist seismic loading caused by forces applied at the individual pipe’s center of gravity. For seismic loading see Section 01612.
1.05 RESTRAINT SELECTION
A. Unless otherwise specified, select, locate and provide seismic restraints for piping in accordance with the contract documents.
B. Review the piping layout in relation to the surrounding structure and adjacent piping and equipment before selecting the restraint to be used at each point.
C. Seismic restraints may be omitted from the following installations:
1. Gas piping less than 1” inside diameter.
2. Piping in boiler and mechanical rooms less than 1-1/4” inside diameter.
3. All other piping less than 2-1/2” inside diameter.
4. All piping suspended by individual hangers 12” or less in length from the top of the pipe to the bottom of the support for the hanger.
D. Do not brace piping systems to dissimilar parts of a building or to dissimilar building systems that may respond in a different mode during an earthquake. Examples: wall and a roof; solid concrete wall and a metal deck with lightweight concrete fill.
E. Size restraints to fit the outside diameter of the pipe, tubing, or, where specified, the outside diameter of insulation.
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F. Do not permit contact between a pipe and restraint component of dissimilar metals. Prevent contact between dissimilar metals when restraining copper tubing by the use of copperplated, rubber, plastic or vinyl coated, or stainless steel restraint components.
G. Do not use branch lines to brace main lines.
H. Do not permit seismic bracing to limit the expansion and contraction of the piping system.
1.06 SUBMITTALS
A. Provide seismic restraint locations, load calculations, and manufacturer's drawings as specified in Paragraph 3.01 as part of the submittals for equipment and piping coordination and installation drawings required in Section 15050.
B. Provide seismic restraint load calculations for each seismically restrained pipe system prepared and signed by a civil or structural engineer currently registered in the State of California. See Section 01612 for seismic loading required.
PART 2 - MANUFACTURERS
2.01 MANUFACTURERS
A. Carpenter & Patterson.
B. B-Line.
C. Kin-Line.
D. Anvil International.
E. Michigan.
F. Pipe Shields Incorporated.
G. Superstrut.
H. Unistrut.
I. Or equal as specified in Section 01330.
2.02 PRODUCTS
A. Materials
1. Restraints, including braces and fittings, pipe and structural attachments, trapeze restraints, and accessories: Type 316 stainless steel.
2. Nuts, bolts and washers, fittings and accessories: Type 316 stainless steel.
3. Comply with MSS SP-58
B. Pipe Attachments
1. Type 1s - Clevis Restraint Attachment
a. Provide Type 1, clevis pipe hanger, as specified in Section 15060, 2.02.B.
2. Type 3s - Double Bolt Restraint Clamp:
a. Provide Type 3, double bolt pipe clamp, as specified in Section 15060,
2.02.B.
3. Type 4s - Roller Restraint Attachment
a. Provide Type 4, adjustable roller hanger, as specified in Section 15060,
2.02.B.
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b. Size hold down strap as follows:
1) 1” through 2” Pipe: 1” by 1/8” thick
2) 2-1/2” through 4” Pipe: 1-1/4” by 3/l6” thick
3) 6” Pipe: 2” by 3/l6” thick
4) 8” Pipe: 2-1/2” by 3/16” thick
5) 10” through 16” Pipe: 2-1/2” by 1/4” thick
6) 20” Pipe: 3” by 1/4” thick
7) 24” Pipe: 3” by 3/8” thick.
4. TypeE 7s - U-Bolt Restraint
a. Provide Type 7, U-bolt, as specified in Paragraph 15060, 2.02.B.
5. Type 13s - Framing Channel Strap Restraint
a. Provide Type 13, framing channel pipe strap, as specified in Paragraph 15060, 2.02.B.
6. Type 14s - Pipe Clamp Restraint
a. Provide with configuration and components equivalent to MSS and FEDSPEC Type 4.
b. Rod attachment and longitudinal brace connection stud shall be fabricated and welded by the manufacturer.
c. Steel pipe (insulated): Superstrut No. S-720, Kin-Line No. S475, or equal, with insulation shield.
d. Steel pipe (uninsulated): Superstrut No. S-720, Kin-Line No. S475, or equal.
e. Cast and ductile iron pipe: Superstrut No. S-720, Kin-Line No. S475, or equal.
f. Copper pipe (insulated): Superstrut No. S-720, Kin-Line No. S475, or equal, with insulation shield.
g. Copper pipe (uninsulated): Superstrut No. S-720, Kin-Line No. S475, or equal, with insulation shield or dielectric lining.
h. Plastic pipe: Superstrut No. S-720, Kin-Line No. S475, or equal.
C. Trapeze Restraints
1. General
a. Unless otherwise specified, provide trapeze members with a minimum steel thickness of 12-gage, with a maximum deflection 1/240 of the span.
2. Type 20s - Single Channel Lateral Restraint
a. Trapeze restraint cross member
1) 1-5/8” square framing channel, Unistrut P1000, B-Line B22, Superstrut A-1200, or equal.
b. Pipe attachments
1) Type 13s or Type 7s specified in Paragraph 2.02.B.
c. Rod stiffeners and lateral brace
1) As specified in Paragraph 2.02.D.
3. Type 21s - Double Channel Lateral Restraint
a. Trapeze restraint cross member
1) a double channel manufactured assembly such as Unistrut P1001, B-Line B22A, Superstrut A-1202, or equal.
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2) Pipe attachments
a) Type 13s or Type 7s specified in Paragraph 2.02.B.
b. Rod stiffeners and lateral brace
1) As specified in Paragraph 2.02.D.
4. Type 22s - Double Channel Longitudinal Restraint
a. Trapeze restraint cross member: a double channel manufactured assembly such as Unistrut P1001, B-Line B22A, Superstrut A-1202, or equal.
b. Pipe attachments
1) Type 13s or Type 7s specified in Paragraph 2.02.B.
c. Rod stiffeners, longitudinal and lateral braces
1) As specified in Paragraph 2.02.D.
D. Braces and Fittings
1. Seismic Brace Fitting
a. Provided for use with industry standard framing channel. b. Provide welded construction, two-piece linked fitting. c. Provide means to reduce noise and vibration transmission between the linked fitting parts.
d. Manufacturers
1) Superstrut C-749N series seismic brace,
2) Kin-Line No. 633 seismic connector fitting,
3) or equal as defined in Section 01330.
2. Hanger Rod Stiffener Assembly
a. Rod stiffener channel
1) 1-5/8” square framing channel, Unistrut P1000, B-Line B22, Superstrut A-1200, or equal.
b. Rod stiffener clamps, complete with channel nut
1) Superstrut ES-142, Kin-Line No. 635, or equal as defined in Section 01330.
3. Type A1 Seismic Brace
a. Provide 1-5/8” square framing channel, Unistrut P1000, B-Line B22, Superstrut A-1200, Kin-Line No. 4112, or equal as defined in Section 01330.
4. Type A2 Seismic Brace
a. Provide 1-5/8” wide by 3-3/4” deep framing channel, Unistrut P5000, BLine B11, Superstrut H-1200, Kin-Line No. 8212, or equal as defined in Section 01330.
E. Structural Attachments
1. General
a. Unless otherwise specified, provide hanger rod structural attachments as specified in Section 15060.
b. Structural attachments for longitudinal and lateral seismic braces: as specified in Paragraph 2.02.D.
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2. Type SA-1 Attachment
a. Brace fitting: as specified in Paragraph 2.02.D.
b. Concrete anchors
1) As specified in Section 05500 with embedment and location dimensions as specified.
3. Type SA-2 Attachment
a. Brace fitting: as specified in Paragraph 2.02.D.
b. Concrete anchors
1) As specified in Section 05500 with embedment and location dimensions as specified.
c. Framing channel
1) As specified in Paragraph 2.02.F.
4. Type SA-3 Attachment
a. Brace fitting
1) As specified in Paragraph 2.02.D.
b. Cap screw, lockwasher and hex nut materials and finish: compatible with structural steel material.
5. Type SA-4 Attachment
a. Brace fitting
1) As specified in Paragraph 2.02.D.
6. Type SA-5 Attachment
a. Brace fitting
1) As specified in Paragraph 2.02.D.
2) Angle: 4” x 3” x 3/8”.
F. Accessories
1. Hanger Rods
a. Threaded on both ends or continuous threaded and sized as specified.
2. Framing Channel
a. Roll formed, 12-gage.
b. Provide channel with a continuous slot along one side with in-turned clamping ridges.
c. Manufacturers
1) Unistrut P1000 series,
2) B-Line B22 series,
3) Superstrut A-1200 series,
4) or equal as specified in Section 01330.
3. Rod Coupling
a. Provide with sight hole in center of coupling body.
b. Manufacturers
1) Anvil International. 135,
2) Superstrut H-119,
3) or equal as specified in Section 01330.
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2.03 THERMAL PIPE HANGER SHIELD
A. Provide thermal shields at seismic restraint locations on pipe requiring insulation.
B. Provide thermal pipe hanger shields as specified in Section 15060, 2.03.
C. Provide Type 316 stainless steel band clamps on thermal shields at longitudinal pipe restraint locations.
PART 3 - EXECUTION
3.01 PIPE RESTRAINT LOCATIONS
A. Locate the first seismic restraint on a piping system not more than 10’ from the main riser, entrance to a building or piece of equipment.
B. Brace cast iron pipe on each side of a change in direction of 90º or more. Brace or stabilize joints in risers between floors.
C. Brace no-hub and bell and spigot cast iron soil pipe longitudinally every 20’ and laterally every 10’.
D. Lateral bracing for one pipe section may also act as longitudinal bracing for the pipe section connected perpendicular to it, if the bracing is installed within 24” of the elbow or tee of the same size.
E. Indicate seismic restraint locations and components on the piping layout drawings required by Section 15050.
F. Provide a legend giving load information and restraint component selection at each restraint location.
G. Provide seismic restraint load calculations conforming to the requirements specified in Paragraph 1.06.
3.02 INSTALLATION
A. Use rod stiffener assemblies at seismic restraints for hanger rods over 6” in length. Provide a minimum of two rod stiffener clamps on any rod stiffener assembly.
B. Install lateral and longitudinal bracing between 45º above and 45º below horizontal, inclusive, relative to the horizontal centerline of the pipe.
C. Construct welded and bolted attachments to the building structural steel which comply with the AISC Manual of Steel Construction. Do not drill or burn holes in the building structural steel without approval of the Construction Manager
D. Use embedded anchor bolts instead of concrete inserts for seismic brace installations in areas below water surface or normally subject to submerging.
E. Install thermal pipe hanger shields on insulated piping at required locations during restraint installation. Make butt joint connections to pipe insulation at the time of insulation installation per the manufacturer’s recommendations.
F. Provide restraint components in contact with plastic pipe which are free of burrs and sharp edges.
G. Ensure rollers roll freely without binding.
H. Provide plastic or rubber end caps at the exposed ends of all framing channels that are located up to 7’ above the floor.
END OF SECTION
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592-50-22-14 Valves and Appurtenances Thickening and Dewatering Improvements
SECTION 15110.5
VALVES AND APPURTENANCES
PART 1 - GENERAL
1.01 SECTION INCLUDES
A. Miscellaneous valves and accessories for water service. Valves shall be installed in accordance with the manufacturer’s recommendations. Valves shall be suitable for pressures up to 150 psi. Valves shall be complete with all necessary operating hand wheels, extension stems, valve boxes, floor stands, worm and gear operators, operating nuts, hardware and fasteners, and wrenches which are required for the proper completion of the work included under this section.
1.02 SECTION INCLUDES
A. The following Sections are referenced in this Section:
1. Section 01330 – Submittals
2. Section 09960 – High Performance Coatings
1.03 SUBMITTALS
A. Demonstrate full compliance with all aspects of this specification and submit in accordance with Section 01330.
1.04 REFERENCE STANDARDS
A. The standards listed below are part of this section as specified and modified. In case of conflict between the requirements of this section and those of the listed documents, the requirements of this section shall prevail.
Reference Title
AWWA C504 Rubber-Seated Butterfly Valves
AWWA C509 Resilient Seat Gate Valves for Water and Sewage Systems AWWA C550 Protective Interior Coatings for Valves and Hydrants PART 2 - PRODUCTS
2.01 GENERAL
A. Valves shall be furnished full line size unless specifically called out to be of reduced size.
Unless otherwise specified, valves shall be rated for 150 psi working pressure minimum.
B. All valves shall be complete with all necessary operating hand wheels, chain wheels, extension stems, valve boxes, floor stands, worm and gear operators, operating nuts, chains, hardware and fasteners, and wrenches which are required for the proper completion of the work included under this section. Operating torque to operate any valve shall not exceed 40 ft-lb. Unless otherwise indicated, the direction of rotation of the wheel, wrench nut or lever to open the valve shall be counterclockwise. Each valve body or operator shall have cast thereon the word "OPEN" and an arrow indicating the direction to open. Actual length of valves shall be within 1/16 inch (plus or minus) of the specified or catalog length except where installed adjacent to flexible or mechanical pipe couplings, where different lengths of a replacement can be accommodated. Flanges shall meet the requirements of ANSI B16.
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C. Valve boxes and extended stems to within 24 inches of finished grade shall be provided for all buried valves.
2.02 ACTUATORS
A. All valves, except those which are equipped with power actuators or are designed for automatic operations, shall be provided with manual actuators. Unless otherwise specified or indicated on the Plans, each manual actuator shall be equipped with an operating hand wheel. Manual operators for butterfly valves shall be designed in accordance with AWWA C504 and shall have a disc position indicator designating the opened and closed position of the valve.
B. Operators for butterfly valves six-inches in diameter and smaller shall be level actuators and permit locking the valves in at least five intermediate positions between fully open and fully closed. Operators for butterfly valves eight-inches in diameter and larger shall be the traveling nut type. Manual operators for exposed service valves shall include a handwheel and be of the traveling nut, rack and pinion, or worm gear type and be gasketed for weatherproof service. Operators shall be equipped with adjustable mechanical stoplimiting devices to prevent over-travel of the disc in the open and closed positions and shall be self-locking and designed to hold the valve in any intermediate position between full open and full closed. Valve operator components shall withstand an input torque of 300 ftlbs at the extreme operator positions without damage.
C. Operators for buried service shall be provided with a two-inch square operating nut unless otherwise specified or shown. Operating extension stems shall be provided to bring the operating nut to a point six inches below the surface of the ground and box cover. Extension stems shall be constructed of steel and shall be complete with two-inch square operating nut.
D. Power actuators for valves shall be motorized actuators and shall be one of the following types:
1. For quarter-turn valves:
a. Open-close power actuators shall be Rotork IQT or approved equal.
Power actuator shall be provided with four configurable indication contacts configured to indicate the following: remote selected (AUTO), internal failure (FAIL), fully closed (CLOSE), and fully opened (OPEN). Four additional configurable contacts shall be provided. Power actuator shall operate on 120VAC power and all contacts shall be rated 5A, 120VAC. b. Modulating power actuators shall be Rotork IQTM or approved equal.
Power actuator shall set its position based on a 4-20mA set point signal and provide a 4-20mA valve position feedback signal (4mA = 0% open, 20mA – 100% open). Power actuator shall be provided with four configurable indication contacts configured to indicate the following:
remote selected (AUTO), internal failure (FAIL), fully closed (CLOSE), and fully opened (OPEN). Four additional configurable contacts shall be provided. Power actuator shall operate on 120VAC power and all contacts shall be rated 5A. 120VAC.
2. For multi-turn gate valves:
a. Open-close power actuators shall be Rotork IQS or approved equal.
Power actuator shall be provided with four configurable indication contacts configured to indicate the following: remote selected (AUTO), internal failure (FAIL), fully closed (CLOSE), and fully opened (OPEN). Four additional configurable contacts shall be provided. Power actuator shall operate on 120VAC power and all contacts shall be rated 5A, 120VAC.
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2.03 BUTTERFLY VALVES (NOT USED)
2.04 GATE VALVES (NOT USED)
2.05 PLUG VALVES
A. Cast iron or ductile iron body and plug, neoprene plug facing, stainless steel valve seat, Buna-N or PTFE stem packing, and Type 316 stainless steel plug bearing. Non-lubricated eccentric plug valve, suitable for drip-tight, bi-directional shutoff at 150 psi design pressure.
Port area of at least 80 percent of the full pipe cross-sectional area. Bolts, Studs, Nuts and Washers: Zinc plated in exposed installations, Type 316 stainless steel in buried installations. Valve as manufactured by DeZurik, Clow Valve Company, or equal.
2.06 BALL VALVES
A. Unless otherwise indicated or specified, all 2-1/2-inch and smaller shutoff valves shall be ball valves.
B. Two-inch and smaller ball valves for general air and water service shall be of bronze or brass construction with two piece end entry body, with threaded ends, Teflon seats, and hand lever operators. Valves shall be rated not less than 500 psi non-shock cold WOG and shall be drip tight in both directions. Valves shall be Apollo 70-100 series, Stockham S216, or equal.
2.07 HOSE VALVES
A. Hose valves shall be one and one/half -inch in size unless otherwise indicated on the Plans.
B. Valves shall be Class 125 angle valves with bronze body seat and disc equipped with hose nipple.
C. Hose nipple shall be all brass with double male ends, NPT by straight hose tread.
D. Provide valve with vacuum breaker/backflow preventer in chlorine room.
E. Valves shall be Stockham B-216, Walworth Fig 3059, or equal.
2.08 SILENT CHECK VALVES (NOT USED)
2.09 ELASTOMER TYPE CHECK VALVES (NOT USED)
2.10 SERVICE SADDLES
A. Double-strap design rated 150 psi minimum working pressure.
B. Run diameter compatible with outside diameter of the pipe on which the saddle is installed.
Taps with iron pipe threads.
C. Malleable or ductile iron bodies and galvanized steel straps, steel hex nuts w/washers, and neoprene seals.
D. Manufacturers and Models: Smith-Blair, Inc., Series 313; Romac Industries, Inc., Series 202; or equal.
2.11 VALVE APPURTENANCES
A. Extension Stems for Buried Valve Operators
1. Where the depth of the valve is such that its centerline is more than three feet below grade, provide operating extension stems to bring the operating nut to a point six inches below the surface of the ground and/or box cover.
2. Extension stems shall be constructed of steel and be complete with two-inch square operating nut.
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B. Valve Boxes
1. Provide valve boxes for all buried valves.
2. Valve boxes shall be concrete construction with a minimum throat diameter of nine inches and minimum wall thickness of one inch.
3. Valve boxes shall have cast-iron bases and covers with the appropriate service designation cast thereon. All parts shall be bituminous varnish coated.
4. Valve boxes shall be Christy Concrete Products No. G-5 or equal.
5. PVC pipe risers shall be C900 PVC, 8-inch diameter, extend to valve box and shall fit inside the valve box without slipping.
6. Tracer wire shall be placed outside the riser pipe.
2.12 AIR RELEASE VALVES (ARV)
A. Air release valves located at each pump shall be of the simple lever type, 1/2-inch inlet and outlet unless otherwise shown, designed to have a small 3/32-inch venting orifice to vent the accumulation of air and other gases that may occur within a pipeline while the pump is operating.
B. In closed position, valve to seat against resilient seat to prevent water leakage.
C. Body and cover, cast or ductile iron; float and trim, stainless steel; seat, Viton or Buna-N.
D. Provide return vent pipe turned 180 degrees downward and discharging to floor drain.
E. Provide isolation valves below each air valve.
F. Manufacturers and Products: APCO, Model 50; Val-Matic Valve, Model 22; or equal.
2.13 COMBINATION AIR VALVES (CAV)
A. Combination air valves for water service shall be single-body construction. Combination air valves shall have a small venting orifice to vent the accumulation of air and other gases with the line or system under pressure and shall have a large venting orifice to permit the release of air as the line is filling or relieve the vacuum as the line is draining or is under negative pressure.
B. Valve shall have a two-inch inlet and outlet unless otherwise shown and designed to have a small 3/32-inch venting orifice.
C. Body and cover, cast iron and ductile iron; float and trim, stainless steel; seat, Viton or Buna-N.
D. Provide return vent pipe turned 180 degrees downward. Isolation valves shall be provided below each air valve.
E. Manufacturers and Products: APCO Series 140/150; Val-Matic Valve, Model 202C; or equal.
2.14 FIRE HYDRANTS (NOT USED)
2.15 DOUBLE DOOR CHECK VALVES (NOT USED)
2.16 RUBBER FLAPPER CHECK VALVES (NOT USED)
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PART 3 - EXECUTION
3.01 PLACING
A. Valves installed in vertical runs of pipe shall have their operating stems oriented to facilitate the most practicable operation, as approved by the Engineer.
3.02 ANCHOR BOLTS
A. Anchor bolts, nuts, and washers shall be Type 316 stainless steel and shall be cast in place during concrete placement. Threads shall be protected and shall be cleaned before the nuts are attached and tightened.
3.03 TESTING
A. Test valves at the same time that the adjacent pipeline is tested. Joints shall show no visible leakage under test. Repair joints that show signs of leakage prior to final acceptance. If there are any special parts of control systems or operators that might be damaged by the pipeline test, they shall be properly protected. The Contractor shall be held responsible for any damage caused by the testing.
B. If requested by the City, the valve manufacturer shall furnish an affidavit stating the materials options furnished, and/or that these and other referenced specifications have been complied with.
3.04 CORROSION CONTROL
A. Paint exposed valves in accordance with Section 09960.
B. All buried metal parts such as valves and bolt-ups not cement mortar coated shall be coated with two coats of bitumastic in accordance with Section 09960 and encased with one sheet of 8-mil minimum thickness polyethylene to form a continuous and allencompassing layer of polyethylene between the protected metal and surrounding earth.
C. Secure all polyethylene in place with 10-mil polyethylene tape.
END OF SECTION
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West Yost – March 2023 15115.1 - 1 City of Ukiah
592-50-22-14 Eccentric Plug Valves Thickening and Dewatering Improvements
SECTION 15115.1
ECCENTRIC PLUG VALVES
PART 1 - GENERAL
1.01 SECTION INCLUDES
A. Non-lubricated eccentric plug valves.
1.02 REFERENCED SECTIONS
A. The following Sections are referenced in this Section:
1. Section 01782 – Operation and Maintenance Information
1.03 UNIT RESPONSIBILITY
A. Plug valve manufacturer has unit responsibility for valve and actuator compatibility.
B. Responsibility of the manufacturer extends to the proper selection, assembly, factory testing, and furnishing of the specified products.
1.04 SUBMITTALS
A. Product Data: Submit Manufacturer’s standard product data.
B. Applicable operating and maintenance information specified in Section 01782.
PART 2 - PRODUCTS
2.01 MANUFACTURERS
A. Manufacturers: One of the following or equal:
1. DeZurik, Model PEC.
2. Clow Valve Company, Model F-5412 (flanged) or F-5413 (mechanical joint).
3. Milliken, Model 600.
2.02 ECCENTRIC PLUG VALVES
A. General
1. Description: Non-lubricated, eccentric plug-type valve.
2. Suitable for drip-tight, bi-directional shutoff at the specified valve design pressure.
3. Comply with ANSI/AWWA C517, Resilient-Seated Cast Iron Eccentric Plug Valves.
B. Valve Design
1. Port Design
a. Rectangular shaped.
b. Port Area:
1) Valves less than or equal to 20-inches in nominal size: At least 80 percent of the full pipe cross-sectional area.
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2) Valves greater than 20-inches in nominal size: At least 70 percent of the full pipe cross-sectional area.
2. Plug Design:
a. Geometry: Eccentrically shaped with a cylindrical seating surface that is offset from the center of the plug shaft.
b. Facing:
1) Encapsulate entire plug with resilient material.
2) Bond between Resilient Facing and Metal Plug: Capable of withstanding 75-pound pull in accordance with ASTM D429, Method B.
3. Valve Seats: Welded-in overlay of not less than 90 percent pure nickel to form a raised area at least 1/8-inch thick for contact with the plug facing. Machine seat after welding to provide a smooth surface.
4. Shaft Bearing and Bottom Bearing:
a. Provide replaceable bearings in the upper and lower shaft trunnions. b. Design: Sleeve-type, permanently lubricated.
5. Shaft Seal: Chevron type packing seal, held in place with an adjustable gland follower. Valves using O-ring type shaft seals are not acceptable.
C. Valve Body Pressure Ratings
1. Valves 12 inches in nominal size and smaller: 175 psi.
2. Valves 14-inches through 36-inches in nominal size: 150 psi.
3. Valves 42-inches through 54-inches in nominal size: 125 psi.
D. End Connections
1. Valves 3 inches and Smaller: Threaded ends.
2. Valves Larger than 3 inches:
a. Exposed Piping Systems: Flanged end connections with flange dimensions, facing and drilling conforming to ANSI B16.1, Class 125. b. Buried Piping Systems: Mechanical joint end connections conforming to ANSI A21.11/AWWA C606.
2.03 MATERIALS
A. Materials of Construction
1. Body: Cast iron, ASTM A126, Class B.
2. Plug: Cast iron, ASTM A126, Class B, or cast iron ASTM A436 (Ni-resist), or ductile iron, ASTM A536.
3. Plug Facing: Neoprene or Buna-N.
4. Body Seats:
a. Valves less than 3 inches in nominal size: Cast iron, ASTM A126, Class B.
b. Valves 3 inches in nominal size and larger: Stainless steel, ASTM A276, Type 304 or nickel.
5. Stem Packing: Buna-N or PTFE.
6. Plug Bearings: Type 316 stainless steel.
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7. Bolts, Studs, Nuts and Washers: Zinc plated in exposed installations, Type 316 stainless steel in buried installations.
B. Shop Applied Interior and Exterior Coatings
1. Interior Surfaces: Apply two coats Ameron Amerlock 400, Kop Coat Carboline 890LT, or equal. Apply each coat to 4 to 5 mils thick.
2. Exterior Surfaces: Apply polyurethane coating system consisting of one coat primer, one intermediate coat of polyamide epoxy, and one final coat of polyurethane.
a. Primer and Intermediate Coats: Ameron Amerlock 400, Kop Coat Carboline 890LT, or equal. Apply each coat to 4 to 5 mils thick. b. Finish Coat: Ameron Amercoat 450HS, Kop Coat Carboline 134HS, Tnemec Series 74 Semi-Gloss Endura-Shield, or equal. Apply 1.5 to 2 mills thick.
2.04 VALVE ACTUATORS - MANUAL
A. Buried Service Valves: Provide valve with standard 2-inch AWWA wrench nut and valve box with lid to accommodate operating stem extension.
B. Exposed Service Valves
1. Valves 4 inches and Smaller: Provide with lever type manual operator.
2. Valves Larger than 4 inches: Provide with totally enclosed worm gear actuator with handwheel operator.
C. Provide adjustable stop on manual actuators.
D. Size valve actuator components for the valve design pressure in accordance with AWWA C504. Size manual operators such that the torque that must be applied to the actuator to open the valve does not exceed 80 ft-lbs.
E. Direction of Rotation: Counterclockwise for opening.
PART 3 - EXECUTION
3.01 INSTALLATION
A. Clean interior of valve and valve end joints before installation.
B. Use slings or chains placed around the valve body to lift valve or to lower valve into position. Do not place slings or chains through the port opening or use the mounted actuator for lifting.
C. Valve Seat Positions
1. Clean Water Installations: Install valve with the seat on the downstream side of the plug so that in the closed position the higher upstream pressure in the pipeline applies a seating head on the valve plug against the seat. Install valve with the plug stem in the horizontal position with the plug rotating upwards upon opening.
2. Wastewater Installations and Installations with Entrained Suspended Solids:
a. Vertical Pipe Runs: Install valve with the seat on the top of the valve to prevent solids from packing into body cavity when shut. b. Horizontal Pipe Runs: Install valve with the seat on the upstream side of the valve to prevent solids from packing in body cavity when shut. Install
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valve with the plug stem in the horizontal position with the plug rotating upwards upon opening.
END OF SECTION
West Yost – March 2023 15121 - 1 City of Ukiah
592-50-22-14 Joint Gaskets Thickening and Dewatering
Improvements
SECTION 15121
JOINT GASKETS
PART 1 - GENERAL
1.01 SECTION INCLUDES
A. Rubber gaskets for push-on compression type joints used with fabricated steel pipe, steel pipe, reinforced concrete pipe, concrete cylinder pipe, and cement mortar lined and coated steel pipe.
1.02 REFERENCED SECTIONS
A. The following Section is referenced in this Section
1. Section 01330 – Submittals
1.03 SUBMITTALS
A. Comply with Section 01330.
B. Provide certified copies of test reports indicating that the gasket material has been tested and that the results of the tests comply with the requirements specified.
PART 2 - PRODUCTS
2.01 MATERIALS
A. Provide synthetic rubber compound in which the elastomer is neoprene.
B. Not less than 50% by volume neoprene.
C. Free from factice, reclaimed rubber, and other deleterious substances.
2.02 COMPOUND PHYSICAL REQUIREMENTS
A. Tensile Properties
1. Test per ASTM D412.
2. Strength: 1,500 psi minimum
3. Ultimate elongation 350% minimum.
B. Hardness
1. Test per ASTM D2240, Type A Durometer.
2. Hardness range: 35 to 50 for concrete spigots and 50 to 65 for steel spigots.
C. Compression Set
1. Test per ASTM D395.
2. Do not exceed 20% when compressed for 22 hours at 70C.
3. Test specimens.
a. Circular discs cut from the gaskets.
b. Height: 0.500” (±0.005 - 0.025) in height.
c. Diameter: That of the gasket but not to exceed 1.129” ±0.010 in diameter.
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D. Aging
1. Test per ASTM D573.
2. Allowable deterioration: less than 20% reduction in tensile strength, 40% reduction in ultimate elongation, and 15 points increase in hardness.
E. Effect of Liquids
1. Test per ASTM D471.
2. Maximum allowable volume change in oil and in water:
a. Oil: 100% in ASTM oil No. 3.
b. Water: 15%.
3. Cut circular test specimens from gasket to a thickness of 0.080 ±0.005.
F. Ozone Cracking
1. Test per ASTM D1149.
2. Test specimen: a gasket loop mounted to give at least 20% elongation.
3. No cracking visible at two times magnification of the gasket after 100 hours exposure to 1 mg/l ozone at 40C.
PART 3 - EXECUTION
3.01 INSTALLATION
A. Install as recommended by manufacturer.
END OF SECTION
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592-50-22-14 Piping Connections Thickening and Dewatering Improvements
SECTION 15122
PIPING CONNECTIONS
GENERAL
1.01 SECTION INCLUDES
A. Methods of connecting metallic piping: flanges, threading, mechanical couplings, dielectric unions, and welding.
1.02 REFERENCED SECTIONS
A. The following Sections are referenced in this Section
1. Section 01330 – Submittals
2. Section 09960 – High Performance Coatings
3. Section 15050 – Piping Systems
1.03 SUBMITTALS
A. Comply with Section 01330.
B. For each welder, provide a welder qualification certificate indicating the welder is certified for pipe welding in accordance with ASME Boiler and Pressure Vessel, Section IX.
C. Submit each welder’s certificate to the Construction Manager per Section 01330 prior to that welder working on the job.
PRODUCTS
2.01 FLANGE ASSEMBLIES
A. Flanges
1. General
a. Provide flat-faced flanges or convoluted ring flanges as specified in the following paragraphs.
2. Flat Faced Flanges
a. Cast iron flanges: face per ANSI B16.1.
b. Where companion flanges are used, reface the flanges on pipe refaced to be flush with the companion flange face.
c. Class 150 and Class 300 forged steel flanges: comply with ANSI B16.5. d. Lightweight slip-on flanges: comply with AWWA C207, Class B and ANSI B16.5.
e. Unless otherwise specified, provide steel flanges per ANSI B16.5, Class 150 or AWWA C207, Class D.
f. Provide Class E AWWA flanges where test pressure exceeds 175 psi. g. Do not bolt flat faced flanges to raised face flanges.
3. Convoluted Ring Flanges
a. Materials: Ductile iron, forged steel or cast stainless steel. b. Design to bear on hubs welded to the pipe.
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c. Manufacturer
1) Improved Piping Products.
2) The engineer knows of no equal.
d. Rating: not less than 150% of the test pressures listed in Section 15050. e. Comply with ANSI B 16.5 and AWWA C207.
f. If required by the Construction Manager, provide manufacturer-certified pressure tests demonstrating that the flanges will meet these requirements.
B. Gaskets
1. Material: As specified in Section 15050 and Paragraph 2.05 of this Section 15122.
2. For flat-faced flanges provide full-face type.
3. Thickness: 1/16” for pipe 10” and less in diameter and 1/8” for pipe 12” and larger in diameter.
C. Bolts and Nuts
1. Comply with ANSI B18.2.1 standard square or hexagon head bolts with ANSI B18.2.2 standard hexagon nuts.
2. Threads: Comply with ANSI Bl.1, standard coarse thread series.
3. Bolts: Class 2A.
4. Nuts: Class 2B.
5. Bolt length: Comply with ANSI B16.5.
6. Materials
a. Unless otherwise specified, provide carbon steel machined bolts with hot pressed hexagon nuts.
b. Submerged service: Type 316 stainless steel complying with ASTM F593 and ASTM F594, markings F593F and F594F.
c. Buried service: non-corrosive high-strength, low-alloy steel per AWWA C111 (ANSI A21.11), regardless of any other protective coating.
2.02 MECHANICAL COUPLINGS
A. Manufacturers
1. Sleeve-type mechanical pipe couplings: Rockwell Type 411, Dresser Style 38, or equal, with the stop removed from the middle ring.
2. Reducing couplings: Rockwell Type 415, Dresser Style 62, or equal.
3. Sleeve-type flanged coupling adapters: Rockwell Type 913, Dresser Style 128, or equal.
4. Insulating couplings: Rockwell Type 416, Dresser Style 39, or equal.
5. Bolts and nuts for submerged service: Type 316 stainless steel in conformance with ASTM F593 and ASTM F594, markings F593F and F594F.
6. Bolts and nuts for buried service: Non-corrosive high-strength, low-alloy steel having the characteristics specified in AWWA C111 (ANSI A21.11), regardless of any other protective coating.
7. Gaskets: comply with Paragraph 2.05 and AWWA C111.
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B. Plain End Couplings
1. Pipe sizes 6” and smaller: Gustin-Bacon 200, Victaulic Style 99, or equal for Schedule 80 pipe and Gustin-Bacon 205, Victaulic Style 90, or equal for lighter weight pipe.
2. Pipe sizes 8” and larger shall be Gustin-Bacon 200, Victaulic Style 99, or equal.
3. Bolts and nuts: Comply with AWWA C606.
4. Gaskets: Comply with Paragraph 2.05 this Section and AWWA C606.
C. Grooved End Couplings
1. Flexible-type: Gustin-Bacon 100, Victaulic Style 77, or equal.
2. Rigid-type Gustin-Bacon 120 Rigi-Grip, Victaulic Style 07 Zero-Flex, or equal.
3. Use flexible-type couplings:
a. For all piping greater than 12” in diameter.
b. For pipe 12” in diameter and less in rack-mounted tunnel piping applications.
c. For grooved joints adjacent to pump or blower suction and discharge where grooved couplings are used for noise and vibration control.
4. For all other applications of piping 12” and less in diameter use rigid-type couplings.
5. Flanged coupling adapters: Gustin-Bacon 154, Victaulic Style 741, or equal.
6. Snap-joint couplings: Gustin-Bacon 115, Victaulic Style 78, or equal.
7. Cut grooves are not permitted on fabricated or light wall pipe.
8. Unless otherwise specified, bolts and nuts shall comply with AWWA C606.
9. Bolts and nuts for submerged service: Type 316 stainless steel in conformance with ASTM F593 and ASTM F594, markings F593F and F594F.
10. Bolts and nuts for buried service: Non-corrosive high-strength, low-alloy steel having the characteristics specified in AWWA C111 (ANSI A21.11), regardless of any other protective coating.
11. Gaskets: Comply with Paragraph 2.05 and AWWA C606.
2.03 FLEXIBLE EXPANSION JOINTS
A. Materials: EPDM body and ductile iron retaining rings with baked enamel finish.
B. Drill to connect to the pipe flanges.
C. Temperature rating: 350 degrees F minimum or equal.
D. Provide hypalon coating for UV protection.
E. Expansion joints for aeration air service: Four-arch.
F. Manufacturer: Mercer Style HT 500 Series.
2.04 LINK SEALS
A. Where shown on the plans, provide link seals and compatible wall sleeves with weep ring for wall penetrations.
B. Use manufacturers recommended service designation unless noted otherwise.
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C. Type: Linked rubber sealing elements and pressure plates tightened together with stainless steel bolts.
D. Manufacturers
1. One of the following or equal:
a. Thunderline Corporation
b. Calpico
2.05 GASKETS
A. Designated in Section 15050.
B. Materials
1. EPDM: ethylene-propylene-diene-terpolymer.
2. Neoprene: neoprene.
3. Nitrile: nitrile (Buna N).
4. Compressed gasketing consisting of organic fibers (Kevlar) and neoprene binder; ASTM F104 (F712400), 2500 psi (ASTM F152), 0.2 ML/HR LEAKAGE FUEL A (ASTM F37).
5. TFE bonded EPDM: TFE bonded to EPDM in full-face gasket having concentricconvex molded rings.
2.06 PIPE THREAD
A. Dimensions and size limits: Comply with ANSI Bl.20.1.
2.07 DIELECTRIC ISOLATION
A. General
1. Dielectrically isolate all metallic piping from all other dissimilar metal hangers, brackets, steel reinforcing and all other metal structures.
2. Dielectrically isolate all metallic piping from other piping or other materials constructed from dissimilar metals.
B. Flange Insulators
1. Provide flange dielectric insulation sets with full faced gaskets, full length sleeves, and double insulating washers or as specifically indicated on the drawings.
2. Insulation material for the flange insulation sets: phenolic resin.
3. Provide insulating materials designated by the manufacturer as suitable for use at the operating and test pressures specified for the type of pipe on which the materials are to be installed.
C. Wall Penetrations
1. Prevent metal to metal contact between the pipe and reinforcing steel in the concrete wall.
D. Insulating Unions
1. Comply with Federal Specifications WW-U-532, Class 1 requirements for dimensional, strength, and pressure requirements.
2. Provide insulation barrier which limits galvanic current to 1% of the short circuit current in a corresponding metallic joint.
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3. Provide insulating material which is impervious to water.
4. Make each of the union match the type of material to which it connects.
5. Manufacturers, one of the following or equal:
a. EPCO.
b. Capital Manufacturing.
E. Pipe Supports
1. Dielectrically isolate any pipe hangers, supports, brackets and saddles installed on the buried side of dielectric insulators on the protected pipe, from the pipe by insertion of dielectric insulating material between the hanger and the pipe.
2.08 COATINGS
A. Unless otherwise specified, coat flange assemblies and mechanical type couplings for buried installation with System M-1 as specified in Section 09960.
EXECUTION
3.01 PIPE CUTTING, THREADING, AND JOINTING
A. Comply with ANSI B31.1.
3.02 PIPE WELDING
A. Provide ASME-certified welders and use shielded metal arc, gas shielded arc or submerged arc welding methods.
B. Comply with ANSI B31.1 for piping System 8 specified in Section 15050.
C. For piping systems not specified in Paragraph 3.02.B above, comply with AWWA C206.
3.03 TAKEDOWN COUPLINGS
A. Provide takedown couplings consisting of screw unions, flanged or grooved end mechanical coupling type joints as specified.
1. Use flanged or grooved end joints shall be employed on pipelines 2½” in diameter and larger.
2. Where piping passes through walls, provide takedown couplings within 3’ of the wall, unless specified otherwise.
B. Provide a union or flanged connection within 2’ of each threaded end valve.
3.04 FLEXIBILITY
A. For piping 2” in diameter and larger passing from concrete to earth, provide with two pipe couplings or flexible joints as specified within 2’ or one pipe diameter of the structure, whichever is greater.
B. Where required for resistance to pressure, restrain mechanical couplings per AWWA M11, Paragraph 13.10, Tables 13-6 and 13-7, and Figure 13-17.
3.05 DIELECTRIC CONNECTIONS FOR COPPER PIPE
A. Where a copper pipe is connected to steel or cast iron pipe, provide an insulating section of rubber or plastic pipe.
B. Insulating section minimum length: 12 pipe diameters.
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C. Dielectric unions as specified in Paragraph 2.07 may be used instead of the specified insulating sections.
D. Where copper pipe is supported from hangers, insulate the pipe from the hangers, or use copper-plated hangers.
3.06 INSULATING FLANGES
A. Install at the specified locations and as shown on the Drawings.
B. Clean all components of all dirt, grease, oil and other foreign materials immediately prior to assembly.
C. Align bolt holes in mating flanges at the time bolts and insulating sleeves are inserted to prevent damage to the insulation.
D. After flanged bolts have been tightened, inspect each insulating washer for cracks or other damage.
E. Replace all damaged washers.
F. After assembly, measure resistance between each bolt and flange with an approved ohmmeter. Minimum acceptable resistance: 50,000 ohms.
G. Coat all insulating flanged joints.
END OF SECTION
West Yost – March 2023 15141 - 1 City of Ukiah
592-50-22-14 Steel Pipe Thickening and Dewatering
Improvements
SECTION 15141
STEEL PIPE
GENERAL
1.01 SECTION INCLUDES
A. Steel pipe and fittings.
B. See Section 15050 for service applications.
1.02 REFERENCED SECTIONS
A. The following Sections are referenced in this Section
1. Section 01330 – Submittals
2. Section 01600 – Materials and Equipment
3. Section 09960 – High Performance Coatings
4. Section 15050 – Piping Systems
5. Section 15122 – Piping Connections
6. Section 15996 – Testing Pressure Pipe
1.03 SUBMITTALS
A. Comply with Section 01330.
B. Include the following items:
1. Affidavits of Compliance with AWWA C205, ASTM A53, or ASTM A106 as applicable.
2. Shop drawings, product data sheets, information for linings and coatings.
1.04 QUALITY ASSURANCE
A. Factory test per ASTM A53 or ASTM A106 as applicable.
1.05 PRODUCT DELIVERY, STORAGE, AND HANDLING
A. Comply with Section 01600.
PRODUCTS
2.01 PIPE MATERIALS
A. Provide steel pipe and fittings per ASTM A53 or ASTM A106, as specified in Section 15050.
B. Steel pipe not otherwise specified shall be galvanized.
2.02 PIPE MANUFACTURE
A. ASTM A53
1. Type E, electric resistance welded.
2. Alternative: Type S, seamless pipe.
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B. Minimum wall thickness:
1. Schedule 40 for pipe 10” diameter and less.
2. 3/8” for pipes 12”-24” diameter.
3. Provide increased shell thickness where specified.
2.03 CONNECTIONS
A. As specified in Section 15050, conforming to Section 15122.
2.04 FITTINGS AND APPURTENANCES
A. Malleable iron threaded fittings and appurtenances: Comply with ASTM A47 or ASTM A197, ANSI B16.3.
B. Unless otherwise specified, provide steel fittings and appurtenances which comply with ASTM A234, ASTM A105, or ANSI B16.11.
C. Unless otherwise specified, provide fittings which are rated for pressure and external loads equal to the pipe.
2.05 PIPE LINING
A. Epoxy
1. Where specified, line pipe and fittings with a liquid epoxy complying with AWWA C210, with the following exceptions:
a. Do not incorporate coal tar products in the liquid epoxy. b. The curing agent may be an amidoamine as well as the other curing agents listed in AWWA C210.
2. Applied to a minimum thickness of 16 mils in not less than 2 coats.
B. Cement Mortar
1. Where specified, line pipe and fittings with cement mortar as specified in AWWA C205. See Section 15050 for thickness.
C. High Temperature Service Epoxy (NOT USED)
D. Glass Lining (NOT USED)
2.06 PIPE COATING
A. Epoxy
1. Where specified, coat pipe and fittings with a liquid epoxy as specified in AWWA C210 with the following exceptions:
a. Do not incorporate coal tar products in the liquid epoxy. b. The curing agent may be an amidoamine as well as the other curing agents listed in AWWA C210.
2. Apply to a minimum thickness of 16 mils in not less than two coats.
B. Polyethylene Tape (NOT USED)
C. See Sections 15050 and 09960.
2.07 FUSION EPOXY COATING AND LINING (NOT USED)
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2.08 JOINT GASKETS
A. Comply with Section 15050.
EXECUTION
3.01 INSTALLATION
A. General
1. Install per AWWA M11, Chapter 12.
2. Welded joints: Comply with AWWA C206 and Section 15122.
3. Sleeve-type mechanical pipe couplings: Comply with AWWA M11 and Section 15122.
4. Pipe lining and coatings at field joints shall be applied as specified in Paragraphs
2.05 and 2.06.
5. Unless otherwise specified, buried mechanical couplings and valves shall be field coated as specified in Section 15122.
B. Anchorage
1. Provide anchorage as specified.
2. Provide calculations and drawings for proposed alternative anchorage and submit per Section 01330.
3.02 TESTING
A. Hydrostatic testing: Comply with Section 15050 and Section 15996.
B. Conduct the tests in the presence of the Construction Manager.
END OF SECTION
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SECTION 15143
DUCTILE IRON PIPE
PART 1 - GENERAL
1.01 SECTION INCLUDES
A. Ductile iron pipe, joints, fittings, gaskets, and pipe lining and coating.
1.02 REFERENCED SECTIONS
A. The following Sections are referenced in this Section:
1. Section 01330 – Submittals
2. Section 15050 – Piping Systems
3. Section 15996 – Testing Pressure Piping
1.03 SUBMITTALS
A. Comply with Section 01330.
B. Certifications
1. Manufacturer’s certificates of compliance with the specified standards.
C. Shop Drawings
1. Detailed layout drawings showing alignment of pipes, location of valves, fittings, and appurtenances, types of joints, connections to structures and joint thrust restraint details.
D. Product Data
1. Photographs, drawings, and descriptions of fittings, gaskets, couplings, grooving of pipe and fittings, pipe linings, and coatings.
1.04 DELIVERY, STORAGE, AND HANDLING
A. Block piping material for shipment, prevent damage to castings and linings.
B. Carefully handle piping material during loading, unloading, and installation. Do not drop piping material from cars or trucks. Lower piping material by mechanical means. Do not drop or pound pipe to fit grade.
C. Repair damaged cement mortar lining to match quality, thickness, and bonding of original lining in accordance with AWWA C104. When lining cannot be repaired or repairs are defective, replace defective piping with undamaged piping.
D. Protect gaskets and polyethylene encasement from long term exposure to sunlight.
E. Store fittings and other accessories such that they do not accumulate and hold rainwater, dirt, and debris.
PART 2 - PRODUCTS
2.01 DUCTILE IRON PIPE
A. Type: Conforming to AWWA C150 and AWWA C151 with minimum pressure class 350.
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B. Pipe Joints
1. General Intent:
a. Use push-on type joints on buried pipe unless mechanical joints are specifically indicated on the Drawings.
b. Use restrained joints on buried piping on fittings that create a change in pipe size and on fittings that result in a change of direction, whether the change is in horizontal plane or a vertical plane.
c. Use flanged joints on all exposed pipes. Use flanged joints in buried situations only where flanged joints are specifically indicated on the Drawings.
d. Exposed Piping: To the greatest extent possible, use factory-assembled pipe spools with flanges for exposed piping. Field cutting pipe to match field conditions will be allowed in limited quantities as determined by the Construction Manager.
2. Flanged Joints:
a. Screw-on type with diameter, thickness, bolt holes, and other characteristics conforming to ANSI B16.1.
b. Material: Ductile iron.
c. After installation of flanges, machine flange face to make perpendicular to axis of the pipe.
d. Bolt Holes on Flanges:
e. 2-holed and aligned at both ends of pipe.
f. Cap Screw or Stud Bolt Holes: Tapped.
g. Bolts and Nuts: Conform to ANSI/ASME B16.1.
1) Aboveground and Exposed Pipe: Corrosion resistant, high strength, low alloy.
2) Underground, in concrete pipe valve boxes, or underwater: Use Type 304 or Type 316 stainless steel.
3) Cut and finish bolts to project a maximum of 1/4-inch beyond nut when joints are assembled.
3. Mechanical Joints:
a. Joint Design: In accordance with AWWA C111/ANSI A21.11.
4. Restrained Mechanical Joints:
a. Design: Lug-type joint.
b. Manufacturers: One of the following or equal:
1) Pacific States Cast Iron Pipe Company, Lock Mechanical Joint. 2) American Cast Iron Pipe Company, MJ Coupled Joint.
3) EBBA Iron, Megalug.
5. Push-on Joints:
a. Type: Gasketed type joint suitable for buried service. b. Conforming to AWWA C111.
c. Manufacturers: One of the following, or equal:
1) Fastite Joint as manufactured by American Cast Iron Pipe Company.
2) Pacific States Cast Iron Pipe Company.
3) Tyton Joint as manufactured by U.S. Pipe.
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d. Not permitted on fittings or specials, unless otherwise specified. e. Joint Deflection: Provide an allowable deflection up to 5 degrees at specified pressures.
f. Make joint assembly and field cut joints per AWWA C600 and manufacturer’s recommendations.
6. Restrained Push-on Joints:
a. Manufacturers: One of the following or equal:
1) United States Pipe and Foundry Company, TR Flex.
2) Pacific States Cast Iron Pipe Company, Thrust Lock.
3) American Cast Iron Pipe Company, Flex Ring or Lok-Ring. b. Design: Suitable for the following working pressures:
1) For 4- through 24-inch Pipe: 350 pounds per square inch gauge.
2.02 FITTINGS
A. Fittings: Ductile iron conforming to AWWA C110 or AWWA C153.
B. Joint Type: Same as that of the associated piping as specified in Section 15050.
C. Plain end-to-flanged joint connectors using set screws are not acceptable.
2.03 GASKETS
A. Push-on Joints and Mechanical Joints: Synthetic rubber compound in which the elastomer is nitrile or neoprene and conforming to AWWA C111.
B. Flanged Joints: Neoprene.
2.04 PIPE LINNINGS AND COATINGS
A. Asphaltic Base Coating
1. Apply to outside surface of pipes which will not receive another coating. Apply in accordance with AWWA C151/ANSI A21.51.
B. Cement-mortar Lining
1. Apply mortar lining in accordance with AWWA C104 to interior surface of pipe unless un-lined pipe is specifically indicated on the Drawings or specified.
2. Apply mortar to clean, bare metal surfaces, extended to faces of flanges, ends of spigots, and shoulders of hubs.
3. Provide double thickness lining per AWWA C104.
C. Glass Lining
1. General
a. Where specified in Section 15050, glass line interior surfaces of pipe and fittings.
b. Provide vitreous material which is hard, smooth, continuous and formulated to prevent the adherence of grease in sludge and scum lines, and to resist the adherence of crystalline metal salt deposits (Struvite and Vivionite) to sludge and centrate lines in sewage and wastewater treatment plants.
c. Apply to properly prepared pipe and fittings using accepted industry standards.
d. Test per applicable ASTM, NACE and SSPC standards.
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2. Manufacturer: VITCO SG-14, Fast Fabricators/Waterworks.
3. Manufacturing MEH-32.
4. Experience: minimum of 5 years of successful experience in the application of high temperature glass and porcelain coatings.
5. Lining Material
a. Type: Vitreous and inorganic material applied to the internal surfaces that have been prepared by blasting.
b. Apply lining in a minimum of two (2) coats, separately applied and separately fired.
c. Expose items to a maturing temperature of approximately 1400 degrees F., at which point the vitreous and inorganic materials melt and fuse to the base metal, forming an integral molecular bond with the base metal surface.
d. Process subsequent coatings in a similar manner, forcing an integral molecular bond with the base coat.
e. Apply total minimum thickness of 10 mils (.010”) and a maximum of 25 mils (.025”) as tested with a micro test or other acceptable dry film thickness gauge.
f. Withstand a strain of 0.001 inch/inch (the yield point of the base metal) in finished lining without damage to the glass.
g. Hardness: of 5-6 on the MOHS scale.
h. Density of 2.5 3.0 grams per cubic centimeter per ASTM D792. i. Capable of withstanding an instantaneous thermal shock of 350 degrees F. differential without crazing, blistering or spalling. j. Resistant to corrosion of between PH-3 and PH-10 at 125 degrees F. k. No visible loss of surface gloss to the lining after immersing a production sample in an 8% sulfuric acid solution at 148 degrees F. for a period of 10 minutes.
l. Weight loss of not more than 3 milligrams per square inch, when tested per ASTM C2883.
6. Testing and Certification
a. Per the recommended industry standards under ASTM D5162-01, NACE RP 0188-99, and SSPC Coating Manual, Volume 1, Section XIV, test the glass lining by “low voltage, wet sponge, non-destructive holiday detection unit”.
b. Only isolated voids permitted due to casting anomalies and which represent less than 0.01% of the total glassed surface.
2.05 DUCTILE IRON PIPE APPURTENANCES
A. Dismantling Joints
1. Flange Spool: AWWA Class D Steel ring flange. Pipe is ASTM A36 plate.
2. End Ring and Body: ASTM A36 steel.
3. Gaskets: NBR made from rubber compounded for water and sewer service.
4. Bolts and Nuts: Type 304 stainless steel conforming to ASTM A588.
5. Pressure: Rated to 150 psi.
6. Manufacturers: Romac Industries Inc., DJ400 or equal.
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B. Lug-type Restrained Flange Adapters
1. Use lug type restrained flanged adapters when connecting flanged joints on pipe, fittings, or valves to straight pipe that has been cut to length in the field.
2. Material: Ductile iron conforming to ASTM A536.
3. Restraint Mechanism: Consists of multiple gripping wedges designed to maximize restraint capability. Use torque limiting actuating screws to insure proper initial set of gripping wedges. Restrained flange adapters using set screws are not acceptable.
4. The flange adapter shall be capable of deflection during assembly, or permit lengths of pipe to be field cut, to allow a minimum of 0.6” gap between the end of the pipe and the mating flange without affecting the integrity of the seal.
5. Manufacturers: EBAA Iron Inc. Series 2100 Megaflange, or equal.
2.06 POLYETHYLENE ENCASEMENT
A. Polyethylene Encasement Sheets or Tubes:
1. 8 mil thickness low density polyethylene, or
2. 4 mil thickness high density, cross laminated polyethylene.
PART 3 - EXECUTION
3.01 INSTALLATION
A. General
1. Install ductile iron piping in accordance with AWWA C600, modified as specified in Section 15050.
2. Lay mechanical joint or bell and spigot pipe with 1/8 inch space between the spigot and shoulder of the pockets.
B. Polyethylene Encasement
1. Wrap ductile iron pipe to be buried with polyethylene encasement in accordance with ASTM A674 and AWWA C105.
2. Repair tears and make joints with two layers of plastic tape.
3.02 FIELD QUALITY CONTROL
A. Test ductile iron piping as specified in Section 15996.
END OF SECTION
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West Yost – March 2023 15145 - 1 City of Ukiah
592-50-22-14 Polyvinyl Chloride (PVC) Pressure Pipe Thickening and Dewatering Improvements
SECTION 15145
POLYVINYL CHLORIDE (PVC) PRESSURE PIPE (AWWA C900)
GENERAL
1.01 SECTION INCLUDES
A. Polyvinyl chloride pipe manufactured in compliance with AWWA C900, sizes ½-inch through 24-inch.
1.02 REFERENCED SECTIONS
A. The following Sections are referenced in this section:
1. Section 01330 – Submittals
2. Section 01600 – Materials and Equipment
3. Section 15996 – Testing Pressure Pipe
1.03 SUBMITTALS
A. Comply with Section 01330.
B. Product Data
1. Manufacturer’s product data for all materials proposed for use in the Work.
2. Shop drawings showing detailed layout of pipe spools, spacers, adapters, connectors, fittings and pipe supports not indicated in the Contract Documents.
3. Manufacturer’s technical data and installation instructions.
4. Manufacturer’s certificate of compliance indicating that all materials provided under this Section meet the requirements of the Contract Documents.
C. Test reports from:
1. Hydrostatic proof testing
2. Sustaining pressure testing
3. Burst strength testing
D. Certification that pipe meets NSF/ANSI 61 requirements for potable water distribution piping.
E. Warranty
1.04 DEFINITIONS
A. Field joints: Joints between subsequent pipe pieces (does not include fitting joints).
1.05 PRODUCT, DELIVERY, STORAGE, AND HANDLING
A. Comply with Section 01600.
B. Handling
1. Use wide fabric choker slings.
2. Do not drop pipe or fittings.
3. Do not use hooks.
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4. Use extra care when handling and installing PVC pipe during cold weather due to reduced impact resistance.
5. Pipe shall be transported in a vehicle having a bed long enough to provide support for the full length of pipe. The shipping company shall protect the loaded pipe to avoid vehicle exhaust during transit.
C. Storage
1. Store in accordance with the manufacturer's requirements.
2. Store pipe at the job site in unit packages provided by the manufacturer.
3. Avoid compression, damage, or deformation to the pipe bells and barrels.
4. Keep manufactures pipe supports and straps in place until just before installation.
5. When unit packages of flexible pipe are stacked, ensure that weight or upper units do not cause deformation to pipe in lower units.
6. When long-term storage with exposure to direct sunlight is unavoidable, cover flexible pipe with an opaque material while permitting adequate air circulation above and around the pipe as necessary to prevent excessive heat accumulation.
7. Do not store flexible pipe close to heat sources or hot objects such as heaters, boilers, steam lines, engine exhaust, etc.
8. When work is not in progress, open ends of pipe and fittings shall be securely closed so that no water, earth, or other substances will enter the pipe of fittings.
9. Protect gaskets and/or rubber rings from excessive exposure to heat and sunlight.
1.06 INSPECTION
A. Factory Inspection
1. Pipiping and PVC fittings may be subject to inspection at the place of manufacturer in accordance with the referenced standards at the option of the Owner.
2. Notify the Owner 14 calendar days prior to the start of any phase of the pipe manufacture.
3. During manufacture of the pipe, give the Owner or Owner’s representative access to all areas where manufacturing is in process to make inspections to confirm compliance with the Contract Documents.
1.07 TESTING
A. Except as modified herein, factory test pipe in compliance with AWWA C900.
B. Contractor shall pay all expenses incurred for testing or providing samples.
MATERIALS
2.01 PIPE
A. Polyvinyl Chloride (PVC) pressure pipe less than 4-inches in diameter:
1. PVC Schedule Type Pipe : Schedule 40 per ASTM D2466 or Schedule 80 per ASTM D2467.
2. Pipe Materials: Manufactured from 12454B virgin compounds as defined in ASTM D1785.
3. Fittings: In Accordance with ASTM D2466 or ASTM D2467, welded solvent in accordance with ASTM D2564.
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B. Polyvinyl Chloride (PVC) pressure pipe 4- through 24-inches nominal size:
1. Conform to AWWA C900, Pressure Class 305 and DR of 14 unless otherwise indicated.
2. Pipe Materials: Manufactured from Class 12454A or 12454B virgin compounds as defined in ASTM D1784.
3. Joint Design: Bell and spigot push-on, O-ring gasket, compression type conforming to ASTM D3139.
4. Gaskets: Elastomeric with solid cross section, conforming to the requirements of ASTM D3139 and ASTM F477.
5. Pipe Lengths: Standard laying length of 20 feet. Shorter pipe lengths may be used in curved alignments to meet manufacturer’s joint deflection limitations.
6. Minimum pipe stiffness (F/dY) at 5 percent deflection shall be 914 psi when tested in accordance with ASTM D2241.
7. Color: Pantone 522 Purple.
8. Markings: “Caution: Reclaimed Water – Do Not Drink”. Stamp on opposite sides of pipe every three feet.
2.02 FITTINGS
A. Ductile iron conforming to AWWA C153.
1. Cement-mortar lined in conformance with AWWA C104.
2. Minimum working pressure (12-inch and smaller): 350 psi.
3. Minimum working pressure (16-inch to 20-inch): 250 psi.
4. Mechanical joint conforming to AWWA C111.
5. Use flanged fittings where required to connect to flanged valves and other flanged piping components. Conform to the requirements of AWWA C115 for flanged ductile iron pipe and fittings.
6. Rubber rings for use in couplings and fittings shall conform to the requirements of ASTM F477. Rubber rings shall be clearly labeled with the material type.
7. Size for dimensions of the pipe being used.
B. PVC:
1. Polyvinyl Chloride (PVC) conforming to AWWA C900
2. Pressure class: Match the pipe pressure class or greater.
2.03 RESTRAINED JOINTS
A. Restrain pipe by use of joint restraint devices installed as indicated or as necessary to restrain the pipe joint from coming apart due to internal pressure. Do not use concrete thrust blocks to restrain pipe joints unless specifically indicated on the Drawings.
B. Field joints, 4-inch to 12-inch diameter pipe:
1. Harness type joint restraint specifically designed for use with the specified pipe.
2. Description: Two rings that clamp to the pipe which utilize machined teeth to grip the outside surface of the pipe and rods to connect the two rings to restrain the joint.
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3. Design and Materials
a. Restrainer Rings: Ductile iron conforming to ASTM A536, split ring with clamping lugs and bolts, serrated on inside face. Do not use concrete thrust blocks to restrain pipe joints unless specifically indicated on the Drawings.
b. Bell Rings: Ductile iron, split, non-serrated ring installed behind and against the pipe ring.
c. Restraint rods: High strength, low alloy steel per AWWA C111. Use to connect the bell ring and restrainer ring to fully restrain the pipe joint from separation.
d. Pressure Rating: 200 psi with a minimum safety factor of 2. e. Coating: Epoxy enamel or fusion bonded epoxy applied in the factory.
4. Manufacturers:
a. EBAA Iron, Series 1500.
b. Romac Industries, Style 611.
c. Or equal.
C. Field joints, pipe larger diameter than 12 inches:
1. Harness type joint restraint specifically designed for use with the specified PVC pipe and passing the performance testing requirements outlined in ASTM F1674.
2. Design and Materials
a. Restrainer rings: Ductile iron or mild steel, split ring with clamping lugs and bolts, serrated on inside face. Install on spigot end of the pipe. b. Bell Rings: Ductile iron or mild steel, split, non-serrated ring installed behind and against the pipe ring.
c. Restraint rods: High strength, low alloy steel per AWWA C111. Use to connect the bell ring and restrainer ring to fully restrain the pipe joint from separation.
d. Pressure Rating: 200 psi with a minimum safety factor of 2. e. Coating: Epoxy Factory applied enamel or fusion bonded epoxy.
3. Manufacturers:
a. Romac Industries, Style 470SJ,
b. EBAA Iron, Series 2800,
c. Or equal.
D. Thrust Restraint Harness for Flexible Couplings
1. Design
a. Split restraint rings manufactured from ductile iron with gripping wedges that are tightened against the exterior surface of the pipe. b. Incorporate tie bars into the harness that span the distance between the restraint rings and provide adequate clearance from the flexible coupling. c. Pressure Rating: 200 psi with a minimum safety factor of 2. d. Coating: Epoxy enamel or fusion bonded epoxy applied in the factory.
2. Manufacturers: One of the following, or equal:
a. EBAA Iron, Series 1100HV (14-inch to 30-inch) or Series 1900 (12-inch and less).
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b. Romac Industries, Series 470 (14-inch to 24-inch) or Series 611 (12-inch and less).
E. Restrained Joints on Ductile Iron Pipe Fittings and Valves
1. Specifically designed for use with the specified PVC pipe.
2. Designed as a mechanical joint follower gland for ductile iron fittings and valves with mechanical joint ends. Designed with multiple gripping wedges to grip the outside surface of the PVC pipe.
3. Materials
a. Gland Body, Wedges and Wedge Actuating Devices: Ductile iron conforming to ASTM A536 steel.
4. Pressure Rating: 200 psi with a minimum safety factor of 2.
5. Manufacturer:
a. EBAA Iron, Series 2000PV (3-inch through 36-inch)
b. Romac Industries, RomaGrip (3-inch through 24-inch)
c. Or equal.
F. PVC fittings:
1. Use harness restraint system for field joints.
2. Manufacturer: One of the following or equal:
G. Romac Industries, Series 611 (12 inch and less).
EXECUTION
3.01 GENERAL
A. Install PVC pipe in conformance with the AWWA M23 as modified herein.
3.02 INSPECTION
A. Promptly remove PVC pipe with any of the following visual defects from the project site:
1. Pipe that is sufficiently out-of-round to prohibit proper joining.
2. Improperly formed ends.
3. Fractured, cracked, chipped, dented, gouged, scratched or otherwise damaged pipe.
4. Pipe that has been damaged during shipment or handling.
5. Discolored Pipe.
3.03 PREPARATION
A. Straight Pipe Runs: Cut pipe smooth, straight, and at right angles to the pipe axis with saws or pipe cutters designed specifically for the material.
B. Remove any burrs and dust from the jointing surfaces.
C. Bevel cut ends in accordance with manufacturer’s recommendations.
3.04 INSTALLATION
A. Prior to making up pipe joints, clean the socket and plain end of the pipe and apply pipe lubrication meeting the requirements of AWWA C111.
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B. Lubricate the entire circumference of the spigot end of the pipe, especially the beveled end.
Use lubricant for the pipe gaskets furnished by the pipe manufacturer. No substitutes will be permitted.
C. Do not lubricate the gasket or the gasket groove in the bell to avoid gasket displacement.
D. Keep lubricated spigot clean. If sand or dirt adheres to the spigot lubrication, wipe spigot clean and re-lubricate.
E. Insert the plain end of the pipe into the bell in uniform contact with the gasket. Push the spigot into the bell until the reference mark on the spigot end is flush with the end of the bell. Use a bar or block to assemble the joint. Pullers such as come-along may also be used. Do not use the excavation equipment to assembly the pipe joint.
1. If undue resistance to insertion of the spigot is encountered or the reference mark is not reached the flush position, disassemble the joint, check gasket and reposition if necessary, clean the gasket, bell and spigot and repeat the assembly steps.
F. Keep pipe lengths in proper alignment. Keep pipe lengths straight, so not bend pipe to meet alignment or curve radius.
G. Do not disturb previously completed joints during the joining operation.
H. Close off open ends of pipe when pipe laying is not in progress.
3.05 JOINT DEFLECTIONS
A. Make pipe deflections with ductile iron fittings. Do not pull field joints or PVC fitting joints.
B. Allowable ductile iron fitting joint pulls: No more than 75 percent of the manufacturer’s allowable joint pull for the size and DR rating of pipe being placed.
C. Pipe may not be offset to a degree such that the spigot end of the pipe deflects (touches) against the end of the pipe bell.
3.06 DUCTILE IRON FITTINGS (NOT USED)
3.07 THRUST RESTRAINT
A. Install thrust restraint devices in conformance with the manufactures recommendations.
B. Tighten bolts on joint restraint device to the torque recommended by the manufacturer.
3.08 PIPE LOCATION
A. Install locator tape over non-metallic pipe and include a metallic substance that can be registered by magnetic field location device.
B. Install tracer wire on all non-metallic pressurized pipelines.
1. All runs of non-metallic water pipe, including services, shall have a No.12 gauge, solid, soft drawn, copper wire insulated with high molecular weight polyethylene (HMWPE) insulation laid along the top of the pipe to facilitate locating the pipe at a later date. Tracer wire shall be taped to top of pipe every 10 feet. Wire must be a continuous strand.
2. The wire shall be stubbed up inside each valve box or can. Crimpable copper butt splice kits are permitted in valve boxes or cans only.
3. Conduct continuity test on each splice at all locations. a. The Contractor shall retain a third-party specialist to facilitate a continuity test on the tracer wire.
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b. The Contractor shall submit a certified report by the third-party testing service stating the tracer wire is performing satisfactorily. c. All tests must be reviewed and approved by the Engineer and/or Owner before the work is accepted.
d. All construction defects must be repaired and retested before final acceptable is made.
e. All unacceptable tests must be re-performed by the Contractor at no additional cost to the Owner.
3.09 FIELD QUALITY CONTROL
A. Pressure test per Section 15996.
B. When testing is unsuccessful, remove defective pipe or make necessary corrections and retest.
C. Following successful testing, drain water from the pipe; secure both ends with caps and leave in place for future connection.
END OF SECTION
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West Yost – March 2023 15201 - 1 City of Ukiah
592-50-22-14 Stainless Steel Piping Thickening and Dewatering Improvements
SECTION 15201
STAINLESS STEEL PIPE
PART 1 - GENERAL
1.01 SECTION INCLUDES
A. Stainless steel piping.
1.02 REFERENCED SECTIONS
A. The following Sections are referenced in this Section:
1. Section 01330 – Submittals
2. Section 15996 – Testing Pressure Piping
1.03 PREPARATION OF LAYOUT DRAWINGS
A. No attempt has been made on the design Drawings to provide dimensions, locations and orientation of fittings or invert elevations of the pipeline.
1. Take detailed field measurements to determine layout of new pipeline and to provide information for development of layout drawings. a. Utilize layout drawings to shop-fabricate pipe sections.
2. Provide shop fabricated piping sections is pieces that are as long as possible, while still allowing for pickling and passivation, shipment and installation, so that field joints are minimized.
a. Piping design indicated on the Drawings illustrates the general piping layout and configuration. No attempt has been made to indicate the location of field joints and couplings that may be needed to connect shopfabricated piping sections in the field.
1.04 SUBMITTALS
A. Comply with Section 01330.
B. Layout Drawings
1. Illustrate configuration of pipe, fittings, supports and piping appurtenances. Identify each piping section that will make up the system including dimensions, elevations, locations of joints for field assembly and installation details.
2. Identify pipe wall thickness, details of joint design and maximum joint deflection, restrained joint details and other piping details.
3. Details of fittings and pipe specials including elbows, tees, wyes, outlets, connections, nozzles and other special components of the piping system.
4. Welding details including location, type and size.
5. Provide layout drawings in latest version of AutoCAD. Submit AutoCAD files after layout drawings have been reviewed and accepted by Engineer.
C. Product Data
1. Information on joint types and components used in the system including stub ends, backing flanges, flanged joints, grooved joint couplings and screwed joints.
2. Material specifications for pipe, gaskets, fittings, and couplings.
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D. Manufacturing certifications.
1.05 QUALITY ASSURANCE
A. Welder Qualifications: Utilize skilled welding operators, qualified under the provisions of AWS D1.1, to fabricate steel pipe.
1.06 SHIPPING, HANDLING, AND STORAGE
A. Straight Pipe Sections: Support pipe sections on a minimum of two padded saddles, spaced at intervals not exceeding 20 feet. Provide saddles with a width that provides at least a 90-degree contact angle.
B. Fabricated Specials: Support on padded saddles, and crate as necessary to protect fabricated assembly.
C. Handling and Storage
1. Handle pipe using slings, padded cradles or other devices that will not damage to the pipe. Do not use chains, hooks or other equipment, which might damage the pipe.
2. Do not roll pipe during handling operations.
3. Do not stack pipe.
D. Provide adequate stulling and cross bracing for all pipe sections to prevent damage during handling, storage, hauling, and installation.
E. Shop Fabrication: Fabricate piping sections in the shop and pickle and passivate at point of manufacture.
PART 2 - PRODUCTS
2.01 PIPE MATERIALS
A. Pipe fabricated from commercial stainless steel pipe: Use stainless steel Type 304L material conforming to ASTM A240.
2.02 PIPE MANUFACTURE
A. Unless otherwise specified, ASTM A240 pipe shall be manufactured in accordance with ASTM A778.
B. Wall Thickness: Minimum wall thickness corresponding to Schedule 10S.
C. Welding
1. Prepare welds in accordance with AWWA C200.
2. Welded Joints: Butt-welded with complete penetration and fusion, free from unsound metal, pinholes, cracks and other weld defects.
3. Weld Finish: Reasonably smooth, free of depressions, burrs, weld splatter and other irregularities and suitable for application of protective coatings and linings.
D. Pickling and Passivation
1. Following shop fabrication of pipe sections, straight spools, fittings, and other piping components, pickle and passivate fabricated pieces.
2. Immerse fabricated pieces in sulfuric acid solution followed by immersion in a nitric-hydrofluoric bath and subsequent wash at the proper temperature and length of time.
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3. Finish Requirements: Remove free iron, heat tint oxides, weld scale, and other impurities, and obtain a passive finished surface.
2.03 FITTING AND APPURTENANCES
A. Fittings and Piping Specials
1. Stainless steel fittings or segmentally welded fittings with ends designed for buttwelded joints. Fabricate fittings from Schedule 10S 304L stainless steel pipe.
2. Dimensional Standards
a. Fittings with Weld Ends: In accordance with ANSI B16.9. b. Fittings with Flanged Ends: In accordance with ANSI B16.5, Class 150.
3. Wall Thickness of Fittings: In accordance with ANSI B36.19 for the schedule of pipe specified.
B. Stainless Steel Fittings and Appurtenances: Conform to the requirements of ASTM A240 stainless steel grade to match the pipe.
C. Standard Steel Fittings: Conforming to ASTM A774.
D. Pressure Ratings and Loadings: Equal to the pipe rating.
E. Threaded Outlet Couplings: Forged stainless steel, 3,000 psi service rating.
2.04 PIPE JOINTS
A. Where the type of joint is specifically indicated on the Drawings or specified, design and shop-fabricate piping sections utilizing the type of joint illustrated or scheduled.
B. Where the type of joint is not specifically indicated on the Drawings or specified in the Piping Schedule, design and shop-fabricate piping sections utilizing any of the following joint types:
1. Piping stub ends with backing flanges. Cast Type 304L stainless steel stub ends with machined gasket surfaces and cast or forged Type 304 stainless steel backing flanges with drilled bolt holes conforming to ASNI B16.5, Class 150.
2. Double butt-welded joints.
3. Flanged joints conforming to the requirements of ANSI B16.5, Class 150.
4. Grooved joints.
2.05 BOLTS, NUTS, AND GASKETS
A. Bolts and Nuts: Type 316 stainless steel conforming to ASTM A194 (bolts) and ASTM A194 (nuts).
B. Gaskets: EPDM or nitrile.
2.06 STAINLESS STEEL TUBING
A. Seamless tubing made from Type 304 stainless steel and conforming to ASTM A269, wall thickness not less than 0.035 inch.
B. Fittings: Swage ferrule design, with components made of Type 316 stainless steel.
1. Double acting ferrule design providing both a primary seal and a secondary bearing force. Flare, bite or compression type fittings are not acceptable.
2. Manufacturers: Crawford Fitting Company, Swagelock; Hoke, Garlock; Parker, CPI, or equal.
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PART 3 - EXECUTION
3.01 FIELD ASSEMBLY OF SHOP-FABRICATED PIPING SECTIONS
A. Assemble shop-fabricated piping sections in the field using the joints designed in the piping layout or by using flexible couplings. Field welding is prohibited.
B. Join shop-fabricated piping sections together using backing flanges, flexible couplings, flanged coupling adapters or flanges.
C. Slope horizontal lines so that they can be drained completely.
D. Provide valve drains at low points in piping systems.
E. Install eccentric reducers where necessary to facilitate draining of piping system.
F. Provide access for inspection and flushing of piping systems to remove sediments.
3.02 TESTING
A. After the pipe sections are installed, test the pipe for pressure loss in accordance with Section 15996. Test pressure is 25 pounds per square inch. Conduct test in the presence of the Construction Manager. Allowable leakage is zero.
B. Visually inspect pipe for welding defects such as crevices, pits, cracks, protrusions, and oxidation deposits.
END OF SECTION
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SECTION 15250
PIPE INSULATION
PART 1 - GENERAL
1.01 SECTION INCLUDES
A. Piping insulation.
1.02 REFERENCED SECTIONS
A. The following Section is referenced in this Section
1. Section 01330 – Submittals
1.03 REFERENCED STANDARDS
A. American Society for Testing and Materials (ASTM)
1. C534 – Standard Specification for Preformed Flexible Elastomeric Cellular Thermal Insulation in Sheet and Tubular Form
2. C547 – Standard Specification for Mineral Fiber Pipe Insulation
3. C553 – Standard Specification for Mineral Fiber Blanket Thermal Insulation for Commercial and Industrial Applications
4. D1056 – Withdrawn 1992: Practice for Preparation of Loose Fill Mineral Fiber Thermal Insulation Samples for Testing
5. E84 – Standard Test Method for Surface Burning Characteristics of Building Materials
6. E96 – Standard Test Methods for Water Vapor Transmission of Materials B. National Fire Protection Association (NFPA)
1. 255 – Standard Method of Test of Surface Burning Characteristics of Building Materials
1.04 SUBMITTALS
A. Comply with Section 01330.
B. Product technical data including:
1. Acknowledgement that products submitted meet requirements of standards referenced.
2. Manufacturer's installation instructions.
3. Submit complete specification of insulation materials, adhesives, cement, together with manufacturer's recommended methods of application and coverage for coatings and adhesives.
C. Submit itemized schedule by building of proposed insulation systems showing density, thermal conductivity, thickness, adhesive, jackets and vapor barriers.
D. Certifications: Products will meet the requirements of the Contract Documents.
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PART 2 - PRODUCTS
2.01 ACCEPTABLE MANUFACTURERS
A. Subject to compliance with the Contract Documents, the following manufacturers are acceptable:
1. Elastomeric insulation:
a. Rubatex.
b. Armstrong.
c. Or equal.
2. Fiberglass insulation:
a. Certainteed Corporation.
b. Schuller (Manville).
c. Owens Corning.
d. Knauf.
e. Or equal.
3. PVC jacket:
a. Ceel-Co.
b. PIC Plastics.
c. Or equal.
B. Submit request for substitution in accordance with Section 01330.
2.02 PIPING INSULATION - ELASTOMERIC
A. General:
1. Insulation fire and smoke hazard ratings for composite (insulation, jacket or facing, and adhesive used to adhere the facing or jacket to the insulation), as tested by procedure ASTM E84 (UL723), NFPA 255, not exceeding:
a. Flame spread: 25.
b. Smoke developed: 100.
2. Accessories (adhesives, mastics, cements, and tapes: Same component ratings as listed above.
3. Indicate on product labels or their shipping cartons: Flame and smoke ratings do not exceed above requirements.
4. Permanent treatment of jackets or facings to impart flame and smoke safety is required.
a. Water-soluble treatments are prohibited.
5. Insulated shields at pipe support points.
B. Pipe, Fitting, and Valve Insulation:
1. Flexible elastomeric closed cell pipe insulation.
a. ASTM C534, Grade I.
b. Average thermal conductivity not to exceed 0.28 (Btu-IN)/(HR-FT2-DegF) at mean temperature of 75 DegF, temperature range -40 to 220 DegF; permeability not to exceed 0.20 by ASTM E96; water absorption 3 percent by ASTM D1056 and ozone resistance.
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2. Provide minimum insulation thickness conforming to schedules or as shown on the Drawings.
2.03 PIPING INSULATION - FIBERGLASS
A. Pipe and Fitting Insulation:
1. Preformed fiberglass pipe insulation:
a. ASTM C547 Type I:
1) Density: 4 LBS/CF.
2) Temperature rated: 650 DegF.
3) Average thermal conductivity not to exceed 0.24 (Btu-IN)/(HRFT2 -DegF) at mean temperature of 75 DegF.
4) Fire hazard rating:
a) ASTM E84 (UL723), NFPA 255.
b) Flame spread not exceeding 25 and smoke developed not exceeding 100.
2. Moisture adsorption:
a. ASTM C553.
b. Not greater than 0.5 percent moisture by volume when exposed to moisture laden air at 120 DegF and 96 percent RH.
3. Fungi and bacteria resistance:
a. ASTM C665.
b. Does not breed or promote growth.
c. Flame attenuated glass fibers bonded with thermosetting resin.
4. Piping jackets (general applications):
a. Aluminum: 16 mil embossed aluminum.
b. PVC: Preformed 0.028 IN thick PVC jackets fabricated from B.F. Goodrich PVC sheeting V-66 with proven resistance to ultraviolet degradation when temperatures do not exceed the limits of PVC.
c. Piping jacket not required on concealed piping.
5. Provide minimum insulation thickness conforming to schedules or as shown on the Drawings.
2.04 SUBSTITUTION
A. Submit request for substitution in accordance with Section 01330.
PART 3 - EXECUTION
3.01 INSTALLATION
A. Install products in accordance with manufacturer's instructions.
B. General:
1. Consider piping as exposed, except as otherwise indicated.
2. Provide release for insulation application after installation and testing is complete. a. Apply insulation on clean, dry surfaces after inspection.
3. Provide insulation continuous through wall, roof and ceiling openings, pipe hangers, supports and sleeves.
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4. Provide insulation with vapor barrier for piping where surfaces may be cooler than surrounding air temperatures.
a. Provide vapor barrier (0.17 perm-IN; ASTM C553) continuous and unbroken.
b. Hangers, supports, anchors, and related items that are secured directly to cold surfaces must be adequately insulated and vapor-sealed to prevent condensation.
5. Apply specified adhesives, mastics and coatings at the manufacturer's recommended overage per unit volume.
C. Piping Insulation - Elastomeric:
1. Slip insulation on pipe prior to connection.
a. Whenever the slip-on technique is not possible provide insulation neatly slit and snapped over the pipe.
2. Fabricate and install fitting cover insulation according to manufacturer's recommendations.
3. Seal joints, slits, miter-cuts and other exposed edges of insulation with adhesive, recommended by the insulation manufacturer, to ensure complete vapor barrier.
D. Piping Insulation - Fiberglass:
1. Apply over clean dry pipe.
a. Butt all joints together firmly.
2. Seal joints, slits, miter-cuts and other exposed edges of insulation as recommended by the insulation manufacturer.
3. Insulate fittings, valves, and flanges with insulation thickness equal to adjacent pipe.
2. PVC pipe jacket:
a. Apply jacketing with a minimum of 1-inch overlap.
1) Weld longitudinal and circumferential seams with adhesives as recommended by manufacturer.
b. Provide slip-joints every 30 feet and between fittings if distance exceeds 8 feet.
1) Construct slip-joints by overlapping jacket sections 6 to 10 inches. c. Provide premolded PVC covers of same material and manufacturer as jacket for fittings, valves, flanges, and related items in insulated piping systems.
3. Aluminum pipe jacket:
a. Field-applied aluminum jacket with vapor-sealed longitudinal and butt joints.
b. Provide smooth and straight joint with a minimum 2-inch overlap. c. Secure joints with corrosion-resistant screws spaced 0.25 to 0.50 inches back from edge.
d. Center spacing of screws 5 inch maximum or as required to provide smooth tight-fitted joints.
e. Place joints on least exposed side of piping to obtain neat appearance.
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3.02 REPAIR
A. Whenever any factory applied insulation or job-applied insulation is removed or damaged, replace with the same quality of material and workmanship
3.03 SCHEDULES
A. Pipe, Fittings and Valves:
1. Use preformed fiberglass.
2. Schedule:
Application Pipe Size Thickness, inch Jacket
FTH Less than 2 inch .05 PVC
END OF SECTION
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SECTION 15996
TESTING PRESSURE PIPING
PART 1 - GENERAL
1.01 SECTION INCLUDES
A. Hydrostatic pressure pipeline testing.
1.02 REFERENCED SECTIONS
A. The following Sections are referenced in this Section:
1. Section 01330 – Submittals
2. Section 01500 – Construction Facilities and Utilities
3. Section 01999 – Reference Forms
4. Section 15050 – Piping Systems
1.03 SUBMITTALS
A. Provide Submittal per Section 01330.
B. Testing Schedule and Notification of Testing: Submit advance written notice of testing activities a minimum of 48 hours prior to conducting piping tests.
C. Testing Plan: Submit a written plan that identifies the methods for water procurement, conveyance and disposal.
D. Completed Pipe Test Record Forms, found in Section 01999.
1.04 TESTING REQUIREMENTS
A. Furnish personnel, materials, bulkheads, test plugs, restraints, anchors, temporary connections, pumps, pressure gauges and other equipment needed to perform testing.
B. Water for Testing
1. Use potable water for pressure testing pipelines. Obtain water from the source identified in Section 01500.
2. Disposal:
a. Obtain approvals from the California Regional Water Quality Control Board and other regulatory agencies to dispose of water in existing drainage ditches and other surface water features. Pay all costs to convey or transport water to the point of disposal.
b. Dispose of water used for testing pipelines in the Plant Drain Pump Station.
C. Test only those portions of the pipe that have been installed as part of this Contract.
1. Test new pipe sections prior to making final connection to existing piping.
2. Install test plugs or bulkheads to isolate new piping systems.
3. Unless otherwise indicated, valves may not be used to isolate portions of the piping system for purposes of testing. When testing against a valve is indicated or approved by the Owner, provide a test plate “pancake” to further isolate the new and existing piping.
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D. Sequence
1. Buried Pressure Piping: Except as otherwise indicated, conduct piping pressure test after trench has been backfilled to subgrade and compacted. Piping may be tested before or after final paving, at Contractor’s option.
2. Encased Piping: Test before encasing pipe in concrete.
E. Failed Tests: Make necessary corrections or remove defective pipe or defective appurtenances. Repeat pressure test until a successful test is achieved.
PART 2 - PRODUCTS (NOT USED)
PART 3 - EXECUTION
3.01 GENERAL
A. Test pipelines, appurtenances, valves and fittings in the pipeline system.
B. Where allowable leakage rates are not specifically indicated, no leakage is allowed.
C. Perform testing operations in the presence of the Engineer.
D. Prior to pressure testing, clean pipeline of debris, construction materials, dirt and other foreign material within the piping system.
E. Do not test pipelines until thrust restraint devices have been installed. Where concrete thrust blocks are used, do not begin pressure test until concrete has attained an age of at least 7 days unless otherwise approved by the Owner. Pressure test buried pipe after backfill.
F. After testing has been completed, drain test water from pipelines and leave in clean condition.
3.02 FILLING PIPING SYSTEMS WITH WATER
A. Place temporary bulkheads in the pipe at the ends of the test section, and then slowly fill the pipeline with water at a rate which does not cause surges or exceed the rate at which the air can be released through the air valves.
B. Ascertain that test bulkheads are suitably restrained to resist the thrust of the test pressure without damage to, or movement of, the adjacent pipe.
C. Purge air within the pipeline during the filling operation. Check proper operation of air release valves and air vents during the filling operation to ascertain proper operation and venting of air from the pipeline.
D. Concrete pipe, cement-mortar lined pipe and other pipe made from water absorbing material:
1. After the filling operation is complete, allow the filled pipeline to stand under a slight pressure for at least 24 hours to allow air to escape from any air pockets within the pipeline and the pipe lining to absorb water.
2. Examine bulkheads, valves and connections for leaks during this period. If leaks are found, make corrections before conducting the pressure test.
3.03 PRESSURE TESTING EXPOSED PIPING
A. Test exposed piping as follows:
1. Fill section of piping under test with water and raise the system pressure to the test pressure specified in the Piping Schedule in Section 15050.
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2. Visually inspect exposed pipe joints, joints at fittings, valves, hydrants, and other piping appurtenances for leaks.
3. Correct leakage as necessary to eliminate the leakage.
4. Duration of Pressure Test: 2 hours.
5. Leakage Allowances: Zero leakage.
6. Correct any visible leakage by tightening flanges and screwed joints, replacing gaskets or removing defective materials.
7. Repeat test until no leakage is observed.
8. Record results of pressure test on Pipe Test Record form, included in Section 01999.
3.04 PRESSURE TESTING BURIED PIPING
A. Pressure test buried piping as follows:
1. Fill section of piping under test with water and raise the system pressure to the test pressure specified in the Piping Schedule 15050.
2. Visually inspect exposed pipe joints, joints at fittings, valves, hydrants, and other piping appurtenances for leaks.
3. Correct visible leaks necessary to eliminate the leakage.
4. Duration of Pressure Test: 2 hours.
5. Leakage Measurement:
a. Begin test once visible leaks have been eliminated.
b. Maintain test pressure during the test period by adding makeup water to a calibrated test reservoir.
c. Accurately measure the volume of makeup water introduced into the pipeline to maintain the test pressure to determine the leakage rate for the test.
6. The pipeline pressure test is successful when the makeup water added during the test is equal to or less than the allowable leakage rate (L) defined below.
7. Gasketed Ductile Iron Pipe (mechanical or push-on joint) L = SD(P)1/2
148,000
L = Allowable leakage in gallons per hour.
S = Length of the test section in feet.
D = Nominal diameter of the piping in inches.
P = Test pressure in pounds per square inch gauge.
8. Steel Pipe (AWWA C200, Concrete Bar Wrapped Cylinder Pipe (AWWA C303) a. Gasketed joints:
1) L= 6.25 gallons/inch diameter/mile/24 hours
2) L= allowable makeup water in gallons.
b. Welded joints: No leakage allowed.
c. Where pipeline consists of a combination of welded and gasketed joints, adjust the formula above by the ratio of the joint types over the test section.
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9. Polyvinyl Chloride (PCV) pipe:
L = ND(P)1/2
7,400
L = Allowable leakage in gallons per hour.
N = Number of joints in the length of pipeline to be tested.
D = Nominal diameter of the piping in inches.
P = Test pressure in pounds per square inch gauge.
END OF SECTION
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SECTION 16050
ELECTRICAL WORK
PART 1 - GENERAL
1.01 SUMMARY
A. Provide labor, materials, equipment, and incidentals as indicated on the Drawings, specified, and required to complete the electrical work.
B. Equipment shall be rated and labeled by the manufacturer for the environmental conditions in which it is installed including the power disconnects, control stations, and wiring systems.
C. Conduits and circuits within electrical distribution or utilization equipment and cabinets shall be identified and labeled as specified and as shown.
D. System Overview. Detailed requirements are in individual related specification sections.
1. Demolish electrical equipment as indicated on the Drawings. a. Power Generator Building and Washwater Pond area
b. Trickling Filter Electrical Building and Primary Clarifier area c. DAFT Area
d. Dewatering Area
2. Install conduit and conductors as indicated on the Drawings. a. Power Generator Building and Washwater Pond area
b. Trickling Filter Electrical Building and Primary Clarifier area c. DAFT Area
d. Dewatering Area
3. Install equipment, junction boxes, and field instruments as indicated on the Drawings.
a. Power Generator Building and Washwater Pond area
b. Trickling Filter Electrical Building and Primary Clarifier area c. DAFT Area
d. Dewatering Area
4. Modify control panels as indicated on the Drawings.
a. PLC12199
b. PLC31299
c. PLC70299
d. PLC75001
1.02 REFERENCED SECTIONS
A. The following Sections are references in this Section.
1. Section 01330 – Submittals
2. Section 01780 – Record Drawings
3. Section 01782 – Operations and Maintenance Information
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1.03 COORDINATION
A. Review installation procedures, drawings and schedules under other Sections and coordinate with other trades the installation of electrical items that must be installed with or within formwork, walls, partitions, ceilings and panels.
B. Responsible for the installation of all conduits, inserts, and other items to be embedded in the concrete, or built into walls, partitions, ceilings or panels constructed by other contractors. Provide other contractors with detailed plans or sketches of the location of said conduits and other built-in items as may be required. Stay fully informed of the construction where conduits and other built-in items are to be installed. Install conduits and other builtin items in such a manner and within such time periods as will not unnecessarily delay the work of the other contractors.
1.04 GENERAL
A. Interpretation of Drawings:
1. Dimensions shown on the Drawings that are related to equipment are based on the equipment of one manufacturer. Confirm the dimensions of the equipment furnished to the space allocated for that equipment.
2. The Drawings show the principal elements of the electrical Work. They are not intended as detailed working drawings for the electrical Work, but as a complement to the Specifications to clarify the principal features of the electrical systems.
3. It is the intent of the Drawings and Specifications that all equipment and devices, furnished and installed under this Contract, be properly connected and interconnected with other equipment and devices so as to render the installations complete for successful operation, regardless of whether all the connections and interconnections are specifically mentioned in the Specifications or shown on the Drawings.
4. It also is the intent of the Contract Documents that similar products are provided by the same manufacturer for uniformity on the Project.
1.05 QUALITY ASSURANCE
A. Requirements of Regulatory Agencies:
1. Permits: Obtain permits and pay fees required to commence Work and, upon completion of the Work, obtain and deliver to the Engineer a Certificate of Inspection and Approval from the authority having jurisdiction.
2. Codes: Material and equipment shall be installed in accordance with the current standards and recommendations of the National Electrical Code, the National Electrical Safety Code and with local codes which apply. Where discrepancies arise between codes, the most restrictive regulation shall apply.
3. Tests by Independent Regulatory Agencies: Electrical material and equipment shall be new and shall bear the label of the Underwriters’ Laboratories, Inc., or other nationally-recognized, independent testing laboratory, wherever standards have been established and label service regularly applies.
B. Reference Standards: Electrical material and equipment shall conform in all respects to the latest approved standards of the following:
1. California Administrative Code, Titles 17, 19, 24.
2. National and California Electrical Codes (editions in force)
3. NFPA 70E Standard for Electrical Safety in the Workplace
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4. U.L. Electrical Construction Materials List
5. OSHA Rules and Regulations Codes, rules and regulations as applicable and as specified hereinafter.
6. National Electrical Manufacturers Association (NEMA).
7. The American National Standards Institute (ANSI).
8. The Institute of Electrical and Electronic Engineers (IEEE).
9. Insulated Cable Engineers Association (ICEA).
10. National Electrical Safety Code (NESC).
11. American Society for Testing and Materials International (ASTM).
12. The Instrumentation, Systems and Automation Society (ISA).
13. National Fire Protection Agency (NFPA).
14. Underwriter’s Laboratories, Inc. (UL).
1.06 SUBMITTALS
A. Refer to Section 01330 for submittal requirements.
B. Include the following information to the extent applicable to the particular item:
1. Manufacturer’s name and product designation or catalog number, including environmental rating such as “Rated for Outdoor Use” or “Rated for Hazardous Location”.
2. Electrical ratings.
3. Conformance to applicable standards or specifications of ANSI, ASTM, ICEA, IEEE, ISA, NEC, NEMA, NFPA, OSHA, UL, or other organizations.
4. Dimensioned plan, section, elevations and panel layouts showing means for mounting, conduit connection, and grounding.
5. Materials and finish specification, including paints.
6. List of components including manufacturer’s names and catalog numbers.
7. Internal wiring diagram and drawings indicating all connections to components and numbered terminals for external connections.
C. Substitution: Only one substitution for each type of equipment or material will be considered.
1.07 PROJECT CLOSEOUT
A. Operation and Maintenance Data: Submit complete manuals including:
1. Furnish Operation and Maintenance Manuals in accordance with the requirements of Section 01782, including:
a. Copies of all Record Drawings and Wiring Diagrams, test reports, maintenance data and schedules, description of operation, and spare parts information.
B. Record Drawings
1. Furnish in accordance with the requirements of Section 01780, including:
a. System Record Drawings: Include the following:
1) One line wiring diagram of the distribution system.
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2) Accurate and detailed in place conduit and cable layouts with schedule of conduit sizes and number and size of conductors. 3) Layouts of the power and lighting arrangements and the grounding system.
4) Control schematic diagrams, with terminal numbers and all control devices identified, for all equipment.
b. Point-to-Point Interconnection Wiring Diagram Drawings: Include the following:
1) External wiring for each piece of equipment, panel, instrument and other devices and conduit wiring to control stations, lighting panels and motor controllers.
2) Numbered terminal block identification for each wire termination. 3) Identification of the assigned wire numbers for interconnections. 4) Identification of conduit wiring by the conduit tag in which the wire is installed.
5) Terminal and pull boxes through which wiring is routed. 6) Identification of all equipment and the Shop Drawing transmittal numbers for equipment from which the wiring requirements and termination information was obtained.
2. The Record Drawings shall reflect final equipment and field installation information.
3. During the progress of the work, maintain at least one set of up-to-date record drawings which shall be the conformed project drawings with annotations by the Contractor recording all deviations from the plans.
1.08 PRODUCT DELIVERY, STORAGE AND HANDLING
A. Delivery and Storage of Materials:
1. Instruct the manufacturers and vendors as to the maximum shipping sizes of equipment that can be accommodated at the site.
2. Make all arrangements for transportation, delivery and handling of equipment and materials required for prosecution and completion of the Work.
3. Shipments of materials to Contractor or subcontractors shall be delivered to the site only during regular working hours and shall conform to the requirements of the Contractor’s Hazardous Materials Management Program. Shipments shall be addressed and consigned to the proper party giving name of Project, street number and city. Shipments shall not be delivered to Owner.
4. If necessary to move stored materials and equipment during construction, move materials and equipment without any additional compensation.
5. When practical, factory assemble products. Matchmark or tag separate parts and assemblies to facilitate field assembly. Cover machined and unpainted parts that may be damaged by the elements with a strippable protective coating.
6. Package products to facilitate handling and protect from damage during shipping, handling, and storage. Mark or label outside of each package or crate to indicate its purchase order number, bill of lading number, contents by name, Owner’s contract name and number, Contractor, equipment number, and approximate weight. Include complete packing lists and bills of materials with each shipment.
7. Protect products from exposure to the elements and keep thoroughly dry and dust free at all times. Protect painted surfaces against impact, abrasion, discoloration, or other damage. Grease or oil all bearings and similar items.
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8. Do not have products shipped until:
a. Related Shop Drawings have been approved by Engineer. b. Related factory test results, required in the individual Specification Sections, have been reviewed and accepted by Engineer.
c. Required storage facilities have been provided.
9. Items shall be supported, packaged and stored in such a way so as not to impose undue stress/forces to couplings, connections, supports, valves, equipment and instruments.
10. Arrange deliveries of products in accordance with construction schedules and in ample time to facilitate inspection prior to installation.
11. Coordinate deliveries to avoid conflict with Work and conditions on site and to accommodate the following:
a. Work of other contractors, or Owner.
b. Limitations of storage space.
c. Availability of equipment and personnel for handling products. d. Owner’s use of premises.
12. Immediately on delivery, inspect shipment to assure:
a. Product complies with requirements of Contract Documents and approved submittal.
b. Quantities are correct.
c. Containers and packages are intact, and labels are legible. d. Products are properly protected and undamaged.
e. Verify that the accelerometer recordings were made during shipment.
13. Promptly remove damaged products from the Project site and expedite delivery of new undamaged products, and remedy incomplete or lost products to provide that specified, so as not to delay progress of the Work.
B. Handling of Materials:
1. Provide equipment and personnel necessary to handle products, including those provided by Owner, by methods to prevent soiling or damage to products or packaging.
2. Provide additional protection during handling as necessary to prevent scraping, marring or otherwise damaging products or surrounding surfaces.
3. Handle products by methods to prevent bending or overstressing.
4. Lift heavy components only at designated lifting points.
5. Materials and equipment shall at all times be handled in a safe manner and as recommended by manufacturer or supplier so that no damage will occur to them.
Do not drop, roll or skid products off delivery vehicles. Hand carry or use suitable materials handling equipment.
1.09 JOB CONDITIONS
A. Existing Conditions:
1. Examine the site and existing facilities in order to compare them with the Contract Documents with respect to the conditions of the premises, location of and connection to existing facilities and any obstructions which may be encountered.
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2. Perform the Work with due regard to safety and in a manner that will not interfere with the existing equipment or in any way cause interruption of any of the functions of the plant.
3. Work shall be carried out with a minimum amount of disruption to the operation of the existing lift station and with prior approval of Owner. Submit for approval by Owner, a detailed written procedure for work which affects operation of the existing lift station, a detailed procedure for modifying any existing electrical equipment, including appropriate Personal Protective Equipment (PPE) required if equipment must remain energized while conducting work, anticipated time required to complete the Work, and the required shutdown time, if any.
4. Where the Work of Contractor ties in with existing installations, take prior precautions and safeguards in connecting the Work with the existing operating circuits so as to prevent any interruption to the existing operating circuits. The tying in of Work, installed under this Contract, with the existing circuits shall be performed only in the presence of Owner. Advance notice will be required before any equipment is removed from service. Notify Owner, in writing, of his intention to do such work, providing full details.
1.10 CONTROL CABINETS AND PANELS
A. All outdoor panels, with electronics and temperature sensitive instruments, shall be provided with sunshade structures. Sunshade structures shall be constructed as shown on drawings.
B. All control cabinet and panel materials shall be as follows, unless otherwise specified or noted on the Drawings.
C. Provide the following types of enclosures:
1. All indoor locations: NEMA 12 - painted steel.
2. All outdoor locations: NEMA 4X - 316 stainless steel.
3. All explosion proof locations, NEMA 7.
D. Provide the following enclosure features:
1. UL/NEMA 12 Enclosures: (Not Applicable)
2. UL/NEMA 4X Enclosures:
a. Provide enclosures with Type 316 stainless steel construction. Wall or floor mounted enclosures fabricate using a minimum 14 gage steel. Free standing enclosures fabricate using a minimum 12 gage steel. Enclosures smaller than 14”x 12”x 6” fabricate using a minimum of 16 gage steel. Keep steel free of pitting and surface blemishes. Provide all surfaces with a smooth brushed finish.
b. Provide stainless steel fast-operating clamp assemblies on three sides of each door.
c. Rolled lip around three sides of door and along top of enclosure opening. d. Provide a hasp and staple for padlocking.
e. Provide 3-inch high channel base assembly, with solid bottom, drilled to mate the panel to its floor pad for free-standing panel. f. Provide 5/16-inch diameter copper ground studs for the ground connection points for all panel equipment and panel doors.
g. Product and Manufacturer: Provide one of the following:
1) Hoffman/Pentair
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2) Or equal
3. UL/NEMA 7 Enclosures (Not Applicable)
1.11 ELECTRICAL EQUIPMENT
A. All electrical equipment shall be capable of operating successfully at full-rated load, without failure, with an ambient outside air temperature range of 10F to 115F and an elevation of 630 feet (MSL).
B. All electrical devices and equipment shall have ratings based on 75C terminations.
1.12 AREA CLASSIFICATIONS
A. Materials and equipment shall conform to the area classification(s) shown on the Drawings, specified and required.
B. Wet/Corrosive Locations: The following areas shall be considered wet/corrosive locations:
1. All outdoor areas.
2. All indoor areas below grade, unless otherwise specified.
3. Indoor areas above grade where shown on the Drawings.
4. Chemical containment and storage areas.
5. Dewatering room.
C. Hazardous Locations:
1. DAFT Basin: Class 1, Division 2: 18-inches above water level. 18-inch beyond and above basin wall. 18-inch high by 10-feet horizontal boundary beyond basin wall.
1.13 VERIFICATION OF DIMENSIONS
A. All scaled and figured dimensions are approximate and are given for estimating purposes only. Before proceeding with the work, carefully check and verify all dimensions and sizes and assume all responsibility for the fitting of materials and equipment to other parts of the equipment and to the structure. Where apparatus and equipment are indicated on the drawings, dimensions are taken from typical equipment of the class indicated. Carefully check drawings to see that the equipment contemplated for installation will fit into the spaces provided.
1.14 SUPERVISION OF ELECTRICAL WORK
A. Contractor shall personally, or through an authorized and competent representative, constantly supervise the work from beginning to completion and final acceptance. So far as possible, keep same foreman and workmen throughout the project duration. Work shall be subject to inspection and approval by Engineer. Promptly furnish related information when so requested by Engineer.
PART 2 - PRODUCTS (NOT USED)
PART 3 - EXECUTION (NOT USED)
END OF SECTION
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West Yost – March 2023 16070 - 1 City of Ukiah
592-50-22-14 Hangers and Supports for Electrical Systems Thickening and Dewatering Improvements
SECTION 16070
HANGERS AND SUPPORTS FOR ELECTRICAL SYSTEMS
PART 1 - GENERAL
1.01 SECTION INCLUDES
A. Support, anchorage, and attachment components.
B. Fabricated metal equipment support assemblies.
1.02 REFERENCED SECTIONS
A. The following Sections are referenced in this Section
1. Section 01612 – Seismic Design Criteria
2. Section 03300 – Cast-in-Place Concrete
3. Section 05500 – Miscellaneous Metals
4. Section 09960 – High-Performance Coatings
5. Section 16130 – Raceways and Boxes for Electrical Systems
1.03 REFERENCE STANDARDS
A. American Institute of Steel Construction: Allowable Stress Design (ASD).
B. NSF/ANSI/3-A SSI 14159-1 - Hygiene Requirements for the Design of Meat and Poultry Processing Equipment.
1.04 ACTION SUBMITTALS
A. Product Data: For each type of product.
1. Include construction details, material descriptions, dimensions of individual components and profiles, and finishes for the following:
a. Slotted support systems, hardware, and accessories.
b. Clamps.
c. Hangers.
d. Sockets.
e. Eye nuts.
f. Fasteners.
g. Anchors.
h. Saddles.
i. Brackets.
2. Include rated capacities and furnished specialties and accessories.
3. Rated Capacities: Calculated in accordance with AISC ASD, Section F1 or allowable stress equal to 60 percent of material's yield stress. Professional Engineer certified/stamped load ratings with a recommended safety factor of 2.
B. Shop Drawings: For fabrication and installation details for electrical hangers and support systems.
1. Hangers. Include product data for components.
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2. Slotted support systems.
3. Equipment supports.
4. Vibration Isolation Base Details: Detail fabrication including anchorages and attachments to structure and to supported equipment. Include adjustable motor bases, rails, and frames for equipment mounting.
C. Delegated Design Submittal: For hangers and supports for electrical systems.
1. Include design and load calculations and details of hangers.
2. Include design calculations for seismic restraints.
1.05 INFORMATIONAL SUBMITTALS
A. Welding certificates.
B. Manufacturer's Certificates of Conformance: Certifying products meet or exceed specification requirements.
1.06 QUALITY ASSURANCE
A. Hygienic Area Certifications: Certification of NSF/ANSI/3-A SSI 14159-1 and material compatibility with 21 CFR 177. Applies to PVC-encased all-thread stainless rod, riser/floor stands, tented and flat slotted support members.
PART 2 - PRODUCTS
2.01 PERFORMANCE REQUIREMENTS
A. Delegated Design: Engage a qualified structural professional engineer to design hanger and support system.
B. Surface-Burning Characteristics: Comply with ASTM E84; testing by a qualified testing agency. Identify products with appropriate markings of applicable testing agency.
1. Flame Rating: Class 1.
2. Self-extinguishing in accordance with ASTM D635.
C. Structural Performance: Hangers and supports for piping and equipment must withstand the effects of gravity loads and stresses within limits and under conditions indicated in accordance with ASCE/SEI 7.
1. Design supports capable of supporting combined weight of supported electrical systems and system contents.
2. Design equipment supports capable of supporting combined operating weight of supported equipment and connected systems and components.
3. Design seismic-restraint hangers and supports for electrical system and obtain approval from authorities having jurisdiction.
2.02 SUPPORT, ANCHORAGE, AND ATTACHMENT COMPONENTS
A. Stainless Steel Slotted Support Systems: Preformed stainless-steel channels and angles with minimum 13/32 inch diameter holes at a maximum of 8 inch on center in at least one surface.
1. Basis-of-Design Product: Subject to compliance with requirements, provide Rocket Rack, a unit of Robroy Industries or comparable product by one of the following:
a. Eaton (B-line).
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b. Flex-Strut Inc.
c. Gripple Inc.
d. G-Strut.
e. Haydon Corporation.
f. MIRO Industries.
g. nVent (CADDY).
h. Rocket Rack, a unit Robroy Industries.
i. Wesanco, Inc.
2. Standard: Comply with MFMA-4 factory-fabricated components for field assembly.
3. Material for Channel, Fittings, and Accessories: Stainless steel, Type 316.
4. Channel Width: 1-5/8 inch.
B. Hygienic Area, Slotted, Horizontal Support Systems: (Not Applicable) C. Hygienic Area, Slotted, Vertical Framing Systems: (Not Applicable) D. Steel Slotted Support Systems: (Not Applicable)
E. Aluminum Slotted Support Systems: (Not Applicable)
F. Nonmetallic Slotted Support Systems: (Not Applicable) G. Conduit and Cable Support Devices: Stainless steel hangers, clamps, and associated fittings, designed for types and sizes of raceway or cable to be supported.
H. Support for Conductors in Vertical Conduit: Factory-fabricated assembly consisting of threaded body and insulating wedging plug or plugs for nonarmored electrical conductors or cables in riser conduits. Plugs must have number, size, and shape of conductor gripping pieces as required to suit individual conductors or cables supported. Body must be made of malleable iron.
I. Structural Steel for Fabricated Supports and Restraints: ASTM A36/A36M steel plates, shapes, and bars; black and galvanized.
J. Mounting, Anchoring, and Attachment Components: Items for fastening electrical items or their supports to building surfaces include the following:
1. Powder-Actuated Fasteners: Threaded-steel stud, for use in hardened portland cement concrete, steel, or wood, with tension, shear, and pullout capacities appropriate for supported loads and building materials where used. a. Manufacturers: Subject to compliance with requirements, provide products by one of the following:
1) Hilti, Inc.
2) ITW Ramset/Red Head; Illinois Tool Works, Inc.
3) MKT Fastening, LLC.
4) Simpson Strong-Tie Co., Inc.
2. Mechanical-Expansion Anchors: Insert-wedge-type, stainless steel, for use in hardened portland cement concrete, with tension, shear, and pullout capacities appropriate for supported loads and building materials where used. 1) Manufacturers: Subject to compliance with requirements, provide products by one of the following:
a) Eaton (B-line).
b) Empire Tool and Manufacturing Co., Inc.
c) Hilti, Inc.
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d) ITW Ramset/Red Head; Illinois Tool Works, Inc.
e) MKT Fastening, LLC.
3. Concrete Inserts: Steel or malleable-iron, slotted support system units are similar to MSS Type 18 units and comply with MFMA-4 or MSS SP-58.
4. Clamps for Attachment to Steel Structural Elements: MSS SP-58 units are suitable for attached structural element.
5. Through Bolts: Structural type, hex head, and high strength. Comply with ASTM F3125/F3125M, Grade A325.
6. Toggle Bolts: Stainless steel springhead type.
7. Hanger Rods: Threaded steel.
2.03 FABRICATED METAL EQUIPMENT SUPPORT ASSEMBLIES
A. Description: Welded or bolted structural-steel shapes, shop or field fabricated to fit dimensions of supported equipment.
B. Materials: Comply with requirements in Section 05500 for steel shapes and plates.
PART 3 - EXECUTION
3.01 SELECTION
A. Comply with the following standards for selection and installation of hangers and supports, except where requirements on Drawings or in this Section are stricter:
1. NECA NEIS 101
2. NECA NEIS 102.
3. NECA NEIS 105.
4. NECA NEIS 111.
B. Comply with requirements for firestopping materials and installation for penetrations through fire-rated walls, ceilings, and assemblies.
C. Comply with requirements for raceways and boxes specified in Section 16130.
D. Maximum Support Spacing and Minimum Hanger Rod Size for Raceways: Space supports for EMT, IMC, and ERMC as required by NFPA 70. Minimum rod size must be 1/4 inch in diameter.
E. Multiple Raceways or Cables: Install trapeze-type supports fabricated with steel slotted or other support system, sized so capacity can be increased by at least 25 percent in future without exceeding specified design load limits.
1. Secure raceways and cables to these supports with single-bolt conduit clamps.
F. Spring-steel clamps designed for supporting single conduits without bolts may be used for 1-1/2 inch and smaller raceways serving branch circuits and communication systems above suspended ceilings, and for fastening raceways to trapeze supports.
3.02 INSTALLATION OF SUPPORTS
A. Comply with NECA NEIS 101 for installation requirements except as specified in this article.
B. Raceway Support Methods: In addition to methods described in NECA NEIS 1, EMT, IMC and ERMC may be supported by openings through structure members, in accordance with NFPA 70.
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C. Strength of Support Assemblies: Where not indicated, select sizes of components so strength will be adequate to carry present and future static loads within specified loading limits. Minimum static design load used for strength determination must be weight of supported components plus 200 lb.
D. Mounting and Anchorage of Surface-Mounted Equipment and Components: Anchor and fasten electrical items and their supports to building structural elements by the following methods unless otherwise indicated by code:
1. To Wood: Fasten with lag screws or through bolts.
2. To New Concrete: Bolt to concrete inserts.
3. To Masonry: Approved toggle-type bolts on hollow masonry units and expansion anchor fasteners on solid masonry units.
4. To Existing Concrete: Expansion anchor fasteners.
5. Instead of expansion anchors, powder-actuated driven threaded studs provided with lock washers and nuts may be used in existing standard-weight concrete 4 inch thick or greater. Do not use for anchorage to lightweight-aggregate concrete or for slabs less than 4 inch thick.
6. To Steel: Welded threaded studs complying with AWS D1.1/D1.1M, with lock washers and nuts, Beam clamps (MSS SP-58, Type 19, 21, 23, 25, or 27), complying with MSS SP-69.
7. To Light Steel: Sheet metal screws.
8. Items Mounted on Hollow Walls and Nonstructural Building Surfaces: Mount cabinets, panelboards, disconnect switches, control enclosures, pull and junction boxes, transformers, and other devices on slotted-channel racks attached to substrate by means that comply with seismic-restraint strength and anchorage requirements.
E. Drill holes for expansion anchors in concrete at locations and to depths that avoid the need for reinforcing bars.
3.03 INSTALLATION OF FABRICATED METAL SUPPORTS
A. Comply with installation requirements in Section 05500 for site-fabricated metal supports.
B. Cut, fit, and place miscellaneous metal supports accurately in location, alignment, and elevation to support and anchor electrical materials and equipment.
C. Field Welding: Comply with AWS D1.1/D1.1M. Submit welding certificates.
3.04 CONCRETE BASES
A. Construct concrete bases of dimensions indicated, but not less than 4 inch larger in both directions than supported unit, and so anchors will be a minimum of 10 bolt diameters from edge of the base.
B. Use 3000 psi, 28-day compressive-strength concrete. Concrete materials, reinforcement, and placement requirements are specified in Section 03300.
C. Anchor equipment to concrete base as follows:
1. Place and secure anchorage devices. Use supported equipment manufacturer's setting drawings, templates, diagrams, instructions, and directions furnished with items to be embedded.
2. Install anchor bolts to elevations required for proper attachment to supported equipment.
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3. Install anchor bolts in accordance with anchor-bolt manufacturer's written instructions.
3.05 PAINTING
A. Touchup:
1. Clean field welds and abraded areas of shop paint. Paint exposed areas immediately after erecting hangers and supports. Use same materials as used for shop painting. Comply with SSPC-PA 1 requirements for touching up field-painted surfaces.
a. Apply paint by brush or spray to provide minimum dry film thickness of
2.0 mils.
2. Comply with requirements in Section 09960 for cleaning and touchup painting of field welds, bolted connections, and abraded areas of shop paint on miscellaneous metal.
B. Galvanized Surfaces: Clean welds, bolted connections, and abraded areas and apply galvanizing-repair paint to comply with ASTM A780.
END OF SECTION
West Yost – March 2023 16121 - 1 City of Ukiah
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SECTION 16121
CONTROL (INSTRUMENTATION) CABLE
PART 1 - GENERAL
1.01 DESCRIPTION
A. Provide labor, materials, equipment and incidentals as shown on the Drawings, specified and required to furnish and install instrumentation cables.
B. Section includes:
1. Shielded cable (Instrumentation and Ethernet)
1.02 REFERENCED SECTIONS
A. Section 01330 – Submittals
B. Section 16050 – Electrical Work
1.03 SUBMITTALS
A. Refer to Section 01330 for submittal requirements.
B. Shop Drawings: Submit for approval the following:
1. Manufacturer’s catalog cuts and technical information for cable products proposed for use.
1.04 DELIVERY, STORAGE, AND HANDLING
A. Refer to Section 16050 for requirements related to transporting, handling, storing, and protecting products.
B. Accept identification products on site in original containers. Inspect for damage.
C. Accept materials on site in original factory packaging, labeled with manufacturer's identification, including product density and thickness.
D. Protect insulation from weather and construction traffic, dirt, water, chemical, and mechanical damage, by storing in original wrapping.
PART 2 - PRODUCTS
2.01 SHIELDED CABLE
A. Single shielded pair cable:
1. Tinned copper, nineteen strand, PVC insulated conductors, No. 16 AWG minimum, twisted with aluminum-polyester shield, stranded tinned 16 AWG copper drain wire and PVC black or gray outer jacket. Wire conductor colors shall be black (-neg) and red (+pos). 600 Volt Tray Cable (TC) rated.
2. Manufacturers:
a. Belden Company (No. 9342).
b. Okonite Company.
c. Dekoron Wire and Cable Company.
d. Substitutions: Permitted.
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B. Ethernet cable:
1. Cable shall have Category 6 direct burial rating; 23 AWG solid bare copper; 4 pairs; shielded; support PoE++; color coded per ethernet industry standards.
2. Cable shall be finished with a black polyethylene jacket.
3. Cable core shall be filled with a water proofing compound.
4. Manufacturers:
a. Belden Company.
b. Substitutions: Permitted.
PART 3 - EXECUTION
3.01 PREPARATION
A. Mandrel and swab all conduits 2” and larger after conduit installation.
B. Complete raceway installation prior to conductor installation.
3.02 EXISTING WORK
A. Remove exposed abandoned wire and cable. Patch surfaces where removed cables pass through building finishes.
B. Disconnect abandoned cables and remove cable. Remove abandoned boxes when cable servicing boxes is abandoned and removed. Install blank cover for abandoned boxes not removed.
3.03 INSTALLATION
A. Instrumentation Cables shall not be installed within the same conduits, raceways or cable trays with cables having voltage at or above 120VAC.
B. Install all cables complete with proper identification and terminations at both ends. Cable outer installation shall be dressed at the end of the cables with heat shrink tubing prior to terminations. Utilizing electrical tape is not allowed for dressing.
C. Ground shield of shielded cables at one end only and as recommended by instrument manufacturer. When multiple shielded cables are terminated on a designated analog terminal strip an insulated green with yellow strip wire is used to jumper between the shield terminals and at the end of the terminal strip terminate the shields to the isolated DC ground bar mounted in the panel.
D. Install in conformance with the National Electrical Code.
E. Each cable and conductor shall be identified in each pull box and manhole with identification markers, which shall include the conduit number and/or cable number. The markers shall be self-laminating vinyl on white background and shall be printed using a Brady "XC Plus" printer or equal.
3.04 TESTING
A. Test shielded instrumentation cable shields with an ohmmeter for continuity along the full length of the cable and for shield continuity to ground. The tests shall be witnessed by the Owner and Engineer.
B. Connect shielded instrumentation cables to a calibrated 4 to 20 mADC signal transmitter and receiver. Test at 4, 12 and 20 milliamp transmitter settings.
END OF SECTION
West Yost – March 2023 16122 - 1 City of Ukiah
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SECTION 16122
600 VOLT CABLE
PART 1 - GENERAL
1.01 SECTION INCLUDES
A. Building wire and cable; VFD cable; and wiring connectors and connections.
1.02 REFERENCED SECTIONS
A. Section 01330 – Submittals
B. Section 16050 – Electrical Work
C. Section 16195 – Identification for Electrical Systems
1.03 REFERENCES
A. International Electrical Testing Association:
1. NETA ATS – Acceptance Testing Specifications for Electrical Power Distribution Equipment and Systems.
B. National Fire Protection Association:
1. NFPA 70 - National Electrical Code.
2. NFPA 262 - Standard Method of Test for Flame Travel and Smoke of Wires and Cables for Use in Air-Handling Spaces.
C. Underwriters Laboratories, Inc.:
1. UL 1277 - Standard for Safety for Electrical Power and Control Tray Cables with Optional Optical-Fiber Members.
1.04 SYSTEM DESCRIPTION
A. Product Requirements: Provide products as follows:
1. Stranded conductors are required for all feeders and branch circuits.
2. Stranded conductors are required for control circuits.
3. Conductors shall not be smaller than 12 AWG for power and lighting circuits.
4. Conductor shall not be smaller than 14 AWG for control circuits.
B. Wiring Methods: Provide the following wiring methods:
1. Dry Interior Locations: Use only building wire, Type XHHW-2 insulation in raceway.
2. Wet or Damp Interior Locations: Use only building wire, Type XHHW-2 insulation, in raceway.
3. Exterior Locations: Use only building wire, Type XHHW-2 insulation, in raceway.
1.05 DESIGN REQUIREMENTS
A. Conductor sizes are based on copper.
1.06 SUBMITTALS
A. Refer to Section 01330 for submittal requirements.
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B. Product Data: Submit cutsheets and manufacturer data for all conductor sizes and types proposed for use on this project.
C. Test Reports: Indicate procedures and values obtained.
1.07 CLOSEOUT SUBMITTALS
A. Project Record Documents: Record actual locations of components and circuits.
1.08 DELIVERY, STORAGE, AND HANDLING
A. Refer to Section 16050 for requirements related to transporting, handling, storing, and protecting products.
B. Accept identification products on site in original containers. Inspect for damage.
C. Accept materials on site in original factory packaging, labeled with manufacturer's identification, including product density and thickness.
D. Protect insulation from weather and construction traffic, dirt, water, chemical, and mechanical damage, by storing in original wrapping.
1.09 QUALITY ASSURANCE
A. Provide wiring materials located in plenums with peak optical density not greater than 0.5, average optical density not greater than 0.15, and flame spread not greater than 5 feet (1.5 m) when tested in accordance with NFPA 262.
1.10 QUALIFICATIONS
A. Manufacturer: Company specializing in manufacturing products specified in this section with minimum three years experience.
1.11 FIELD MEASUREMENTS
A. Verify field measurements are as indicated on Drawings.
1.12 COORDINATION
A. Where wire and cable destination is indicated and routing is not shown, determine routing and lengths required.
B. Wire and cable routing indicated is approximate unless dimensioned.
PART 2 - PRODUCTS
2.01 BUILDING WIRE
A. Manufacturers:
1. Aetna Insulated Wire, Inc.
2. Cerro Wire LLC.
3. Encore Wire Corporation.
4. General Cable; Prysmian Group North America.
5. Southwire Company.
B. Substitutions: Or equal.
C. Product Description: Single conductor insulated wire. Multi conductor cable shall only be utilized in cable tray applications or unless specified on drawings.
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D. Conductor: Copper.
E. Insulation Voltage Rating: 600 volts.
F. Insulation Temperature Rating: 90°C – dry; 75°C - wet.
G. Insulation Material: Thermoplastic/Thermosetting.
2.02 WIRING CONNECTORS
A. Split Bolt Connectors:
1. Manufacturers:
a. ABB, Electrification Business.
b. Burndy; brand of Hubbell Electrical Solutions; Hubbell Incorporated. c. ILSCO.
2. Substitutions: Or equal.
B. Solderless Pressure Connectors:
1. Manufacturers:
a. 3M.
b. Ideal Industries, Inc.
2. Substitutions: Or equal.
C. Spring Wire Connectors: (NOT PERMITTED)
D. Compression Connectors:
1. Manufacturers:
a. ABB, Electrification Business.
b. Burndy; brand of Hubbell Electrical Solutions; Hubbell Incorporated. c. Ideal Industries, Inc.
d. Leviton Manufacturing Co., Inc.
2. Substitutions: Or equal.
2.03 TERMINATIONS
A. Terminal Lugs for Wires 6 AWG and Smaller: Solderless, compression type copper.
B. Lugs for Wires 4 AWG and Larger: Color keyed, compression type copper, with insulating sealing collars.
2.04 VFD CABLE
A. Manufacturers:
1. Southwire Company Spec 45442.
B. Substitutions: Or equal.
C. Product Description: VFD Flexible cable
D. Conductor: Tinned annealed copper.
E. Insulation Voltage Rating: 600 volts.
F. Insulation Temperature Rating: 90°C.
G. Insulation Material: Cross linked insulation on all conductors (XHHW-2).
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H. Ground: One green ground with yellow stripe cross linked insulation (size equal to phase conductor).
I. Drain Wire: tinned copper drain wire.
J. Shielding: 100% coverage aluminum/mylar/aluminum foil, overall 85% coverage tinned copper braid.
K. Jacket: Black thermoplastic elastomer (TPE).
PART 3 - EXECUTION
3.01 EXAMINATION
A. Verify interior of building has been protected from weather.
B. Verify mechanical work likely to damage wire and cable has been completed.
C. Verify raceway installation is complete and supported.
3.02 PREPARATION
A. Completely and thoroughly swab raceway before installing wire.
3.03 EXISTING WORK
A. Remove exposed abandoned wire and cable, including abandoned wire and cable above accessible ceiling finishes. Patch surfaces where removed cables pass through building finishes.
B. Disconnect abandoned circuits and remove circuit wire and cable. Remove abandoned boxes when wire and cable servicing boxes is abandoned and removed. Install blank cover for abandoned boxes not removed.
C. Provide access to existing wiring connections remaining active and requiring access. Modify installation or install access panel.
D. Extend existing circuits using materials and methods compatible with existing electrical installations, or as specified, whichever is the more stringent requirement.
E. Clean and repair existing wire and cable remaining or wire and cable to be reinstalled.
3.04 INSTALLATION
A. Route wire and cable to meet Project conditions.
B. Neatly train and lace wiring inside boxes, equipment, and panelboards.
C. Identify and color code wire and cable under provisions of Section 16195. Identify each conductor with its circuit number or other designation indicated.
D. Special Techniques--Building Wire in Raceway:
1. Pull conductors into raceway at same time.
2. Install conductors 4 AWG and larger with pulling equipment.
E. Special Techniques - Wiring Connections:
1. Clean conductor surfaces before installing lugs and connectors.
2. Make splices, taps, and terminations to carry full ampacity of conductors with no perceptible temperature rise.
3. Tape uninsulated conductors and connectors with electrical tape to 150 percent of insulation rating of conductor.
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4. Install split bolt connectors for copper conductor splices and taps, 6 AWG and larger.
5. Install solderless pressure connectors with insulating covers for copper conductor splices and taps, 8 AWG and smaller.
F. Install stranded conductors for branch circuits 10 AWG and smaller. Install crimp on fork terminals for device terminations. Do not place bare stranded conductors directly under screws.
G. Install terminal lugs on ends of 600 volt wires unless lugs are furnished on connected device, such as circuit breakers.
H. Size lugs in accordance with manufacturer's recommendations terminating wire sizes. Install 2-hole type lugs to connect wires 4 AWG and larger to copper bus bars.
I. For terminal lugs fastened together such as on motors, transformers, and other apparatus, or when space between studs is small enough that lugs can turn and touch each other, insulate for dielectric strength of 2-1/2 times normal potential of circuit.
3.05 WIRE COLOR
A. General:
1. For wire sizes 10 AWG and smaller, install wire colors in accordance with the following:
a. Black and red for single phase circuits at 120/240 volts. b. Black, red, and blue for circuits at 120/208 volts single or three phase. c. Brown, orange, and yellow for circuits at 277/480 volts single or three phase.
2. For wire sizes 8 AWG and larger, identify wire with colored tape at terminals, splices and boxes. Colors are as follows:
a. Black and red for single phase circuits at 120/240 volts. b. Black, red, and blue for circuits at 120/208 volts single or three phase. c. Brown, orange, and yellow for circuits at 277/480 volts single or three phase.
B. Neutral Conductors: White. When two or more neutrals are located in one conduit, individually identify each with proper circuit number.
C. Branch Circuit Conductors: Install three or four wire home runs with each phase uniquely color coded.
D. Feeder Circuit Conductors: Uniquely color code each phase.
E. Ground Conductors:
1. For 6 AWG and smaller: Green.
2. For 4 AWG and larger: Identify with green tape at both ends and visible points including junction boxes.
3.06 FIELD QUALITY CONTROL
A. Inspect and test in accordance with NETA ATS, except Section 4.
B. Perform inspections and tests listed in NETA ATS, Section 7.3.1.
END OF SECTION
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West Yost – March 2023 16130 - 1 City of Ukiah
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SECTION 16130
RACEWAYS AND BOXES FOR ELECTRICAL SYSTEMS
PART 1 - GENERAL
1.01 SECTION INCLUDES
A. Metal conduits and fittings.
B. Nonmetallic conduits and fittings.
C. Metal wireways and auxiliary gutters.
D. Nonmetal wireways and auxiliary gutters.
E. Surface raceways.
F. Boxes, enclosures, and cabinets.
G. Handholes and boxes for exterior underground cabling.
1.02 REFERENCED SECTIONS:
A. Section 01330 – Submittals
B. Section 16050 – Electrical Work.
C. Section 16070 – Hangers and Supports for Electrical Systems
1.03 DEFINITIONS
A. ARC: Aluminum rigid conduit.
B. GRC: Galvanized rigid steel conduit.
C. IMC: Intermediate metal conduit.
1.04 ACTION SUBMITTALS
A. Refer to Section 01330 for submittal requirements.
B. Product Data: Submit for the following:
1. Metallic conduit.
2. Liquidtight flexible metal conduit.
3. Raceway fittings.
4. Conduit bodies.
5. Outlet boxes.
6. Pull and junction boxes.
C. Manufacturer's Installation Instructions: Submit application conditions and limitations of use stipulated by Product testing agency specified under Regulatory Requirements. Include instructions for storage, handling, protection, examination, preparation, and installation of Product.
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1.05 ENVIRONMENTAL REQUIREMENTS
A. Refer to Specification Section 16050 for environmental conditions affecting products on site.
PART 2 - PRODUCTS
2.01 METAL CONDUITS AND FITTINGS
A. Metal Conduit:
1. Listing and Labeling: Listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended location and application.
2. GRC Conduit, Elbows, Couplings, and Nipples: (NOT PERMITTED)
3. ARC: (NOT PERMITTED)
4. IMC: (NOT PERMITTED)
5. PVC-Coated Steel Conduit: PVC-coated rigid steel conduit. a. Basis-of-Design Product: Subject to compliance with requirements, provide products by one of the following:
1) Korkap.
2) Perma-Cote.
3) Plasti-Bond.
4) Substitutions: Or equal.
b. Comply with ANSI C80.1, ETL PVC-001, NEMA RN 1, and UL 6. c. Coating Thickness: 0.040 inch, minimum.
d. A "PVC Coated Sealing Locknut" shall be used on all exposed male threads transitioning into female NPT threads which do not have sealing sleeves, including transitions from PVC couplings/female adapters to PVC coated GRC elbows in direct burial applications. "PVC Coated Sealing Locknuts" are not to be used in place of a conduit hub.
6. EMT: (NOT PERMITTED)
7. FMC: (NOT PERMITTED)
B. Metal Fittings:
1. Manufacturers: Subject to compliance with requirements, provide products by one of the following:
a. Crouse Hinds by EATON.
b. O-Z/Gedney; a brand of Emerson Industrial Automation. c. Patriot Aluminum Products, LLC.
d. Picoma Industries, Inc.
e. Thomas & Betts Corporation; A Member of the ABB Group.
2. Comply with NEMA FB 1 and UL 514B.
3. Listing and Labeling: Listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended location and application.
4. Fittings, General: Listed and labeled for type of conduit, location, and use.
5. Conduit Fittings for Hazardous (Classified) Locations: Comply with UL 1203 and NFPA 70.
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6. Expansion Fittings: PVC or steel to match conduit type, complying with UL 651, rated for environmental conditions where installed, and including flexible external bonding jumper.
7. Coating for Fittings for PVC-Coated Conduit: Minimum thickness of 0.040 inch (1 mm), with overlapping sleeves protecting threaded joints.
8. PVC-Coated Fittings:
a. Basis-of-Design Product: Subject to compliance with requirements, provide products by one of the following:
1) Korkap.
2) Perma-Cote.
3) Plasti-Bond.
b. Fittings shall be Form 8 with a V-Seal tongue-in-groove gasket and supplied with plastic encapsulated stainless steel cover screws. Form 8 fittings shall be UL Type 4X listed and IEC IP69 certified. Fittings shall be from the same manufacturer as the conduit in order to maintain system continuity and warranty. PVC Coated fittings for hazardous locations must be UL 1203 listed.
C. Joint Compound for PVC coated GRS: Approved, as defined in NFPA 70, by authorities having jurisdiction for use in conduit assemblies, and compounded for use to lubricate and protect threaded conduit joints from corrosion and to enhance their conductivity.
2.02 BOXES, ENCLOSURES, AND CABINETS
A. Basis-of-Design Product: Subject to compliance with requirements, provide boxes, enclosures, and cabinets, by one of the following:
1. Attabox
2. Crouse-Hinds, an Eaton business.
3. EGS/Appleton Electric.
4. Erickson Electrical Equipment Company.
5. FSR Inc.
6. Hoffman; a brand of Pentair Equipment Protection.
7. Hubbell Incorporated.
8. Hubbell Incorporated; Wiring Device-Kellems.
9. Kraloy.
10. Milbank Manufacturing Co.
11. MonoSystems, Inc.
12. Oldcastle Enclosure Solutions.
13. O-Z/Gedney; a brand of Emerson Industrial Automation.
14. Plasti-Bond.
15. RACO; Hubbell.
16. Spring City Electrical Manufacturing Company.
17. Stahlin Non-Metallic Enclosures.
18. Thomas & Betts Corporation; A Member of the ABB Group.
19. Topaz Electric; a division of Topaz Lighting Corp.
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20. Wiremold / Legrand.
21. Substitutions: Or equal.
B. General Requirements for Boxes, Enclosures, and Cabinets: Boxes, enclosures, and cabinets installed in wet locations shall be listed for use in wet locations.
C. Sheet Metal Outlet and Device Boxes: Comply with NEMA OS 1 and UL 514A.
D. Cast-Metal Outlet and Device Boxes: Comply with NEMA FB 1, ferrous alloy, Type FD, with gasketed cover.
E. Metal Floor Boxes: (Not Applicable)
F. Nonmetallic Floor Boxes: (Not Applicable)
G. Small Sheet Metal Pull and Junction Boxes: NEMA OS 1.
H. Cast-Metal Access, Pull, and Junction Boxes: Comply with NEMA FB 1 and UL 1773, cast aluminum, galvanized, cast iron with gasketed cover.
I. Box extensions used to accommodate new building finishes shall be of same material as recessed box.
J. Device Box Dimensions: 4 inches square by 2-1/8 inches deep, 4 inches by 2-1/8 inches by 2-1/8 inches deep.
K. Gangable boxes are prohibited.
L. Hinged-Cover Enclosures: Comply with UL 50 and NEMA 250, Type 12, Type 3R, Type 4X (as indicated on the Drawings or elsewhere in Division 16) with continuous-hinge cover with flush latch unless otherwise indicated.
1. Type 4X Metal Enclosures: 316 Stainless Steel.
PART 3 - EXECUTION
3.01 RACEWAY APPLICATION
A. Outdoors: Apply raceway products as specified below unless otherwise indicated:
1. Exposed Conduit: PVC coated rigid steel.
2. Concealed Conduit, Aboveground: (Not applicable)
3. Underground Conduit: Schedule 40 PVC conduit or PVC coated rigid steel.
4. Connection to Vibrating Equipment (Including Transformers and Hydraulic, Pneumatic, Electric Solenoid, or Motor-Driven Equipment): LFMC.
5. Boxes and Enclosures, Aboveground: NEMA 250, Type 3R, or Type 4X as indicated elsewhere.
B. Indoors (non-classified areas):
1. Exposed Conduit: PVC coated rigid steel.
2. Concealed Conduit, Aboveground: (Not applicable)
3. Connection to Vibrating Equipment (Including Transformers and Hydraulic, Pneumatic, Electric Solenoid, or Motor-Driven Equipment): LFMC.
4. Boxes and Enclosures, Aboveground: NEMA 250, NEMA/UL Type 12, or Type 4X as indicated elsewhere.
C. Minimum Raceway Size: 3/4-inch trade size.
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D. Raceway Fittings: Compatible with raceways and suitable for use and location.
1. GRC: (Not Applicable)
2. PVC Externally Coated, Rigid Steel Conduits: Use only fittings listed for use with this type of conduit. Patch and seal all joints, nicks, and scrapes with PVC touchup compound after installing conduits and fittings. Use sealant recommended by fitting manufacturer and apply in thickness and number of coats recommended by manufacturer. All installers shall be certified by the manufacturer and be able to present a valid unexpired installer certification card prior to installation beginning.
3.02 INSTALLATION
A. Comply with requirements in Section 16070 for hangers and supports.
B. Comply with NECA 1 and NECA 101 for installation requirements except where requirements on Drawings or in this article are stricter. Comply with NFPA 70 limitations for types of raceways allowed in specific occupancies and number of floors.
C. Do not install raceways or electrical items on any "explosion-relief" walls or rotating equipment.
D. Do not fasten conduits onto the bottom side of a metal deck roof.
E. Keep raceways at least 6 inches away from parallel runs of flues and steam or hot-water pipes. Install horizontal raceway runs above water and steam piping.
F. Complete raceway installation before starting conductor installation.
G. Arrange stub-ups so curved portions of bends are not visible above finished slab.
H. Install no more than the equivalent of three 90-degree bends in any conduit run except for control wiring conduits, for which fewer bends are allowed. Support within 12 inches (300 mm) of changes in direction.
I. Make bends in raceway using large-radius preformed ells. Field bending shall be according to NFPA 70 minimum radii requirements. Use only equipment specifically designed for material and size involved.
J. Conceal conduit within finished walls, ceilings, and floors unless otherwise indicated. Install conduits parallel or perpendicular to building lines.
K. Support conduit within 12 inches (300 mm) of enclosures to which attached.
L. Raceways Embedded in Slabs: (Not Applicable)
M. Stub-Ups to Above Recessed Ceilings: (Not Applicable) N. Threaded Conduit Joints, Exposed to Wet, Damp, Corrosive, or Outdoor Conditions: Apply listed compound to threads of raceway and fittings before making up joints. Follow compound manufacturer's written instructions.
O. Coat field-cut threads on PVC-coated raceway with a corrosion-preventing conductive compound prior to assembly.
P. Raceway Terminations at Locations Subject to Moisture or Vibration: Use insulating bushings to protect conductors including conductors smaller than No. 4 AWG.
Q. Terminate threaded conduits into threaded hubs or with locknuts on inside and outside of boxes or cabinets. Install bushings on conduits up to 1-1/4-inch (35-mm) trade size and insulated throat metal bushings on 1-1/2-inch (41-mm) trade size and larger conduits terminated with locknuts. Install insulated throat metal grounding bushings on service conduits.
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R. Install raceways square to the enclosure and terminate at enclosures with locknuts. Install locknuts hand tight plus 1/4 turn more.
S. Do not rely on locknuts to penetrate nonconductive coatings on enclosures. Remove coatings in the locknut area prior to assembling conduit to enclosure to assure a continuous ground path.
T. Cut conduit perpendicular to the length. For conduits 2-inch (53-mm) trade size and larger, use roll cutter or a guide to make cut straight and perpendicular to the length.
U. Install pull wires in empty raceways. Use polypropylene or monofilament plastic line with not less than 200-lb (90-kg) tensile strength. Leave at least 12 inches (300 mm) of slack at each end of pull wire. Cap underground raceways designated as spare above grade alongside raceways in use.
V. Install raceway sealing fittings at accessible locations according to NFPA 70 and fill them with listed sealing compound. For concealed raceways, install each fitting in a flush steel box with a blank cover plate having a finish similar to that of adjacent plates or surfaces.
Install raceway sealing fittings according to NFPA 70.
W. Install devices to seal raceway interiors at accessible locations. Locate seals so no fittings or boxes are between the seal and the following changes of environments. Seal the interior of all raceways at the following points:
1. Where conduits pass from warm to cold locations, such as boundaries of refrigerated spaces.
2. Where an underground service raceway enters a building or structure.
3. Conduit extending from interior to exterior of building.
4. Conduit extending into pressurized duct and equipment.
5. Conduit extending into pressurized zones that are automatically controlled to maintain different pressure set points.
6. Where otherwise required by NFPA 70.
X. Comply with manufacturer's written instructions for solvent welding RNC and fittings.
Y. Flexible Conduit Connections: Comply with NEMA RV 3. Use a maximum of 36 inches of flexible conduit for equipment subject to vibration, noise transmission, or movement; and for transformers and motors. Use LFMC in damp or wet locations.
Z. Mount boxes at heights indicated on Drawings. If mounting heights of boxes are not individually indicated, give priority to ADA requirements. Install boxes with height measured to bottom of box unless otherwise indicated.
AA. Locate boxes so that cover or plate will not span different building finishes.
BB. Fasten junction and pull boxes to or support from building structure. Do not support boxes by conduits.
3.03 PROTECTION
A. Protect coatings, finishes, and cabinets from damage and deterioration.
1. Repair damage to galvanized finishes with zinc-rich paint recommended by manufacturer.
2. Repair damage to PVC coatings or paint finishes with matching touchup coating recommended by manufacturer.
END OF SECTION
West Yost – March 2023 16132 - 1 City of Ukiah
592-50-22-14 Flexible Conduit Thickening and Dewatering Improvements
SECTION 16132
FLEXIBLE CONDUITS
PART 1 - GENERAL
1.01 DESCRIPTION
A. Provide labor, materials, equipment and incidentals as shown on the Drawings, specified and required to furnish and install flexible metallic conduit and fittings.
1.02 RELATED SECTIONS:
A. Section 01330 – Submittals
B. Section 16050 – Electrical Work.
1.03 QUALITY ASSURANCE
A. Reference Standards: Comply with applicable provisions and recommendations of the following, except where otherwise shown or specified.
1. UL Standard No. 360, Liquid-Tight Flexible Steel Conduit.
1.04 SUBMITTALS
A. Refer to Section 01330 for submittal requirements.
B. Shop Drawings: Submit the following for approval:
1. Manufacturer’s catalog cuts and technical information for flexible conduit and fittings proposed for use.
1.05 ENVIRONMENTAL REQUIREMENTS
A. Refer to Specification Section 16050 for environmental conditions affecting products on site.
PART 2 - PRODUCTS
2.01 MATERIALS
A. Flexible Conduit (Non-hazardous Areas):
1. Material: Flexible galvanized steel core with smooth, abrasion resistant, liquid-tight, polyvinyl chloride cover and color to be black. Continuous copper ground built in for sizes 3/4-inch through 1-1/4-inch. Material shall be UL listed.
2. Product and Manufacturer: Provide one of the following:
a. Sealtite UA by Anaconda Metal Hose Division, Anaconda American Brass Company.
b. Liquatite Type L.A. by Electric-Flex Company.
c. Or equal.
B. Flexible Conduit (Class 1, Group D, Division 1, Hazardous Areas):
1. Material: Flexible brass inner core with bronze outer braid. Steel, brass or bronze end fittings. Minimum of 12-inches in length.
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2. Product and Manufacturer: Provide one of the following:
a. Type ECGJH or ECLK by Crouse Hinds Company.
b. Type EXGJH or EXLK by Appleton Electric Company.
c. Or equal.
C. Flexible Conduit Fittings:
1. Material and Construction: Malleable iron with zinc electroplating finish. Fittings shall adapt the conduit to standard threaded connections, shall have an inside diameter not less than that of the corresponding standard conduit size and shall be UL listed.
2. Product and Manufacturer: Provide one of the following:
a. Crouse-Hinds Company.
b. Appleton Electric Company.
c. Or equal.
D. PVC Coated Conduit Fittings:
1. Material and Construction: Malleable iron with standard finish and 40-mil PVC exterior coating. Fittings shall adapt the conduit to standard threaded connections, shall have an inside diameter not less than that of the corresponding standard conduit size.
2. Use: Provide on flexible conduit in areas designated as corrosive locations.
3. Product and Manufacturer: Provide one of the following:
a. Robroy Industries.
b. Permacote Industries.
c. OCAL Incorporated.
d. Or equal.
PART 3 - EXECUTION
3.01 INSTALLATION
A. Install at motors, transformers and equipment which are subject to vibration or require movement for maintenance purposes. Provide necessary reducer where equipment furnished cannot accept 3/4-inch size flexible conduit. Limit flexible conduit length to three feet maximum.
END OF SECTION
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SECTION 16133
SEALING FITTINGS
PART 1 - GENERAL
1.01 DESCRIPTION
A. Provide labor, materials, equipment and incidentals as shown on the Drawings, specified and required to furnish and install conduit sealing fittings.
1.02 REFERENCED SECTIONS:
A. Section 01330 – Submittals
B. Section 16050 – Electrical Work.
1.03 QUALITY ASSURANCE
A. Reference Standards: Comply with applicable provisions and recommendations of the following, except where otherwise shown or specified.
1. UL Standard 886, Electrical Outlet Boxes and Fittings for Use in Hazardous Locations, Class 1, Groups A, B, C and D and Class II, Groups E, F and G.
1.04 SUBMITTALS
A. Refer to Section 01330 for submittal requirements.
B. Shop Drawings: Submit for approval the following:
1. Manufacturer’s catalog cuts and technical information for conduit sealing fittings proposed for use.
2. Listing of locations where fittings are to be used.
1.05 ENVIRONMENTAL REQUIREMENTS
A. Refer to Specification Section 16050 for environmental conditions affecting products on site.
PART 2 - PRODUCTS
2.01 MATERIALS
A. Materials and Construction:
1. Cast gray iron alloy or cast malleable iron or copper free aluminum bodies with zinc electroplate and lacquer or enamel finish.
2. Ample opening with threaded closure for access to conduit hub for making dam.
3. In corrosive locations, fittings shall include a factory applied 40-mil PVC coating.
B. Sealing fiber for forming the dam within the hub and the sealing compound shall be approved for use with the fittings furnished, and shall be products of the fitting manufacturer.
C. Product and Manufacturer: Provide one of the following:
1. Appleton Electric Company.
2. Eaton/Crouse Hinds Company.
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3. Or equal.
PART 3 - EXECUTION
3.01 INSTALLATION
A. Install for hazardous locations as required by National Electrical Code, and as indicated on the Drawings.
B. Select a fitting for the proper use in respect to the mounting position.
C. Use oversized fittings with reducing bushings when necessary to maintain cable fill requirements of the conduit system.
END OF SECTION
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SECTION 16136
OUTLET BOXES
PART 1 - GENERAL
1.01 SUMMARY
A. Provide labor, materials, equipment and incidentals as shown on the Drawings, specified and required to furnish and install outlet boxes for mounting wiring devices (outlets and snap switches) and lighting fixtures.
1.02 REFERENCED SECTIONS:
A. Section 16050 – Electrical Work
B. Section 16122 – 600 Volt Cable
C. Section 16140 – Wiring Devices
1.03 REFERENCES
A. National Fire Protection Association:
1. NFPA 70, National Electrical Code.
B. National Electrical Manufacturers Association:
1. NEMA 250 - Enclosures for Electrical Equipment (1000 Volts Maximum).
2. NEMA FB 1 - Fittings, Cast Metal Boxes, and Conduit Bodies for Conduit and Cable Assemblies.
3. NEMA OS 1 - Sheet Steel Outlet Boxes, Device Boxes, Covers, and Box Supports.
4. NEMA OS 2 - Nonmetallic Outlet Boxes, Device Boxes, Covers, and Box Supports.
C. Underwriters Laboratories
1. UL Standard No. 50, Electrical Cabinets and Boxes.
2. UL Standard No. 886, Electrical Outlet Boxes and Fittings for Use in Hazardous Locations.
1.04 SYSTEM DESCRIPTION
A. Boxes located as indicated on Drawings, and at other locations required for splices, taps, wire pulling, equipment connections, and compliance with regulatory requirements. Boxes are shown in approximate locations unless dimensioned.
B. Outdoor Locations, Above Grade: Provide cast FD PVC Coated outlet boxes with cast threaded hubs, NEMA 4X stainless steel pull, and junction boxes, appropriate for the environmental conditions.
C. In Slab Above Grade: Provide cast PVC Coated outlet boxes with threaded hubs, appropriate for the environmental conditions.
D. Wet and Damp Locations: Provide PVC coated rigid steel conduit. Provide cast FD PVC Coated outlet boxes with cast threaded hubs, NEMA 4X stainless steel pull, and junction boxes, appropriate for the environmental conditions.
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1.05 SUBMITTALS
A. Shop Drawings: Submit for approval the following:
1. Manufacturers technical information for outlet boxes proposed for use.
B. Closeout submittals
1. Project Record Documents:
a. Record actual locations and mounting heights of outlet boxes.
1.06 QUALITY ASSURANCE
A. Reference Standards: Comply with applicable provisions and recommendations of the following, except where otherwise shown or specified:
1. NEC Article 314, Outlet, Switch and Junction Boxes and Fittings.
2. UL Standard No. 514, Electrical Outlet Boxes and Fittings.
1.07 DELIVERY, STORAGE AND PROTECTION
A. Refer to Specification Section 16050.
B. Protect materials from weather, construction traffic, dirt water, chemical and mechanical damage.
PART 2 - PRODUCTS
2.01 MATERIALS
A. Device Boxes:
1. Material: Cast gray iron alloy, or cast malleable iron, with zinc electroplate finish in wet locations and zinc-coated sheet steel in dusty locations. Cast boxes shall be hub type and include external mounting lugs. In corrosive locations, boxes shall include a factory applied 40-mil PVC coating. In dusty locations, where conduit is installed concealed, boxes shall be steel galvanized and shall include suitable extension rings and covers, as required.
2. Device Cover Plates:
a. Stainless steel Type 302 alloy for indoor finished areas. b. Gasketed spring door type for wet and corrosive locations. Plates in corrosive locations shall include a factory applied 40-mil PVC coating. c. Integral with device for hazardous locations.
d. Stainless steel screws and hardware.
3. Manufacturer: Provide device boxes of one of the following:
a. Appleton Electric Company.
b. Crouse-Hinds Company.
c. Substitutions: Approved equal.
2.02 SOURCE QUALITY CONTROL
A. Material and equipment shall be listed or recognized by Underwriters Laboratories Inc. (UL) for the use intended.
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B. The Owner and Construction Manager require the specified manufacturer to provide the equipment and/or products to be furnished under this section. The Owner and Construction Manager believe the manufacturer is capable of producing equipment and/or products that will satisfy the requirements of this Section. This statement, however, shall not be construed to mean that the named manufacturer’s standard product will comply with the requirements of this Section. Manufacturers shall be as specified for the purpose of compatible and efficient utilization of existing equipment, supplies, and personnel training and experience.
PART 3 - EXECUTION
3.01 INSTALLATION
A. Adjust box location up to 10 feet prior to rough-in to accommodate intended purpose.
B. Carefully select box locations so that the equipment or piping of other trades passing under, over, across or in close proximity to same, will not limit access for use or maintenance. If the Contractor is unsure about the final location of any box, consult with the Engineer for decision.
C. Mounting Heights:
1. The exact mounting height of each switch, receptacle, light fixture outlet, etc., shall be confirmed on the premises in conference with the Engineer.
2. Unless otherwise indicated, receptacles to be mounted at 18-inches and light switches to be mounted at 42-inches above finished floor/grade.
D. Install and orient boxes to accommodate wiring devices as specified in Section 16140.
E. Fasten boxes rigidly and neatly to supporting structures.
F. For units mounted on masonry or concrete walls, provide suitable 1/2-inch spacers to prevent mounting back of box directly against wall.
G. Leave no open conduit holes in boxes. Close unused openings with capped bushings.
H. Do not install flush mounting box back-to-back in walls; install with minimum 6 inches separation. Install with minimum 24 inches separation in acoustic rated walls.
I. Secure flush mounting box to interior wall and partition studs. Accurately position to allow for surface finish thickness.
J. Install stamped steel bridges to fasten flush mounting outlet box between studs.
K. Install flush mounting box without damaging wall insulation or reducing its effectiveness.
L. Install adjustable steel channel fasteners for hung ceiling outlet box.
M. Do not fasten boxes to ceiling support wires or other piping systems.
N. Install gang box where more than one device is mounted together. Do not use sectional box.
O. Install gang box with plaster ring for single device outlets.
P. Label each circuit in boxes and identify in accordance with Section 16122.
Q. Install in conformance with National Electrical Code.
END OF SECTION
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SECTION 16140
WIRING DEVICES
PART 1 - GENERAL
1.01 SCOPE
A. Provide labor, materials, equipment and incidentals as shown on the Drawings, specified and required to furnish and install receptacles, wall snap switches and device plates.
1.02 REFERENCED SECTIONS:
A. Section 16122 – 600 Volt Cable.
B. Section 16136 – Outlet Boxes.
1.03 QUALITY ASSURANCE
A. Reference Standards: Comply with applicable provisions and recommendations of the following, except where otherwise shown or specified.
B. National Fire Protection Association:
1. NFPA 70, National Electrical Code.
C. Underwriters Laboratory
1. UL Standard No. 1010, Electrical Receptacle - Plug Combinations for Use in Hazardous Locations.
2. UL Standard No. 20, General Use Snap Switches.
3. UL Standard No. 894, Switches for Use in Hazardous Locations.
D. National Electrical Manufacturers Association:
1. NEMA WD 1 - General Requirements for Wiring Devices.
2. NEMA WD 6 - Wiring Devices-Dimensional Requirements.
1.04 SUBMITTALS
A. Shop Drawings: Submit the following for approval:
B. Manufacturer's technical information for receptacles, switches and device plates proposed for use.
PART 2 - PRODUCTS
2.01 MATERIALS
A. Receptacles for Non-Hazardous Locations:
1. Receptacle shall be heavy duty, industrial specification grade.
2. Duplex grounding receptacle, two pole, three wire, 125 volt AC, 20 amperes. a. Product and Manufacturer: Provide one of the following:
1) Catalog No. HBL5362I, for dry indoor locations and Catalog No.
HBL53CM62, for wet and corrosive locations, by Hubbell Inc. 2) Substitutions: Approved equal.
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3. Single grounding receptacle, corrosion resistant, two pole, three wire, 125 volt AC, 20 amperes.
a. Product and Manufacturer: Provide one of the following:
1) Catalog No. HBL53CM61, by Hubbell Inc.
2) Substitutions: Approved equal.
B. Receptacles for Hazardous Locations:
1. Material:
a. Factory sealed receptacle suitable for installation in Class I, Group D hazardous locations.
b. Copper-free aluminum receptacle and cover with cast gray iron alloy or cast malleable iron mounting box with zinc electroplate finish. c. Receptacle rated at 20 amperes, 125 to 250 volt AC, two wire, three pole. d. Provide matching plug for each receptacle.
2. Product and Manufacturer: Provide one of the following:
a. Series CPS by Crouse-Hinds Company.
b. Type CPS by Appleton Electric Company.
c. Substitutions: Approved equal.
C. Ground Fault Receptacles:
1. Duplex receptacle, two pole, three wire, 125 volt AC, 20 amperes.
2. Product and Manufacturer: Provide one of the following:
a. Catalog No. GFR5362ITR, by Hubbell Inc.
b. Substitutions: Approved equal.
D. Surge Suppression Receptacles: (Not Used)
E. Power Receptacles: (Not Used)
F. Power and Special Receptacles: (Not Used)
G. Switches for Non-Hazardous Locations:
1. Single pole AC toggle switch, quiet type, 120/277 volt AC, 20 amperes, Ivory, specification grade.
a. Product and Manufacturer: Provide one of the following:
1) Catalog No. 1221-I, by Harvey Hubbel Incorporated.
2) Substitutions: Approved equal.
2. Single pole, 3-way AC toggle switch, quiet type, 120/277 volt AC, 20 amperes, Ivory, specification grade.
a. Product and Manufacturer: Provide one of the following:
1) Catalog No. 1223-I, by Harvey Hubbell Incorporated.
2) Substitutions: Approved equal.
3. Two pole AC toggle switch, quiet type, 120/277 volt AC, 20 amperes, Ivory, specification grade.
a. Product and Manufacturer: Provide one of the following:
1) Catalog No. 1222-I, by Harvey Hubbel Incorporated.
2) Substitutions: Approved equal.
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H. Switches for Hazardous Locations:
1. Material:
a. Factory sealed tumbler switch suitable for installation in Class I, Group D hazardous locations.
b. Cast gray iron alloy or cast malleable iron body and cover with zinc electroplate finish.
c. Switch rated at 20 amperes, 120/277 volt AC.
2. Product and Manufacturer: Provide one of the following:
a. Series EDS by Crouse-Hinds Company.
b. Type EDS by Appleton Electric Company.
c. Substitutions: Approved equal.
I. Switch Covers:
1. Indoor covers shall be Type 304, stainless steel.
2. Outdoor or wet location covers shall be weatherproof and corrosion resistant.
J. Key Operated On-Off Switches: (Not Used)
K. Wiring Device Coverplates:
1. Indoor Coverplates:
a. Unless otherwise indicated, coverplates installed indoors or in control panels shall be brushed anodized aluminum.
2. Weatherproof locations:
a. Wiring devices installed outdoors or where identified on Drawings with “WP” shall contain a gasketed coverplate UL approved for wet locations.
3. Where weatherproof-while-in-use coverplates are indicated on the Drawings or required by NEC, provide power receptacles with a cover that maintains UL approval for wet locations when a cord is plugged into the receptacle.
Weatherproof-while-in-use coverplates shall be TayMac 10130 or equal.
PART 3 - EXECUTION
3.01 EXAMINATION
A. Verify outlet boxes are installed at proper height.
B. Verify wall openings are neatly cut and completely covered by wall plates.
C. Verify branch circuit wiring installation is completed, tested, and ready for connection to wiring devices.
3.02 PREPARATION
A. Clean debris from outlet boxes.
3.03 EXISTING WORK
A. Disconnect and remove abandoned wiring devices.
B. Modify installation to maintain access to existing wiring devices to remain active.
C. Clean and repair existing wiring devices to remain or to be reinstalled.
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3.04 FIELD QUALITY CONTROL
A. Contractor shall verify that the openings have been properly patched around devices without damage to devices.
B. Damaged or painted devices shall be replaced or cleaned as directed by the Engineer.
3.05 INSTALLATION
A. Install receptacles and switches at locations as shown on the Drawings in outlet or device boxes in accordance with Section 16136, in non-hazardous locations.
B. Install receptacles and switches in PVC coated galvanized rigid steel conduit systems in hazardous locations.
C. Install receptacles with ground pole in the down position.
D. Connect wiring device grounding terminal to outlet box with bonding jumper and branch circuit equipment grounding conductor.
E. Install plates on all switch, receptacle, and blank outlets.
F. Mount receptacles 18-inches above finished floor in non-hazardous locations and 4 feet-6 inches above finished floor in hazardous locations, unless otherwise noted.
G. Mount wall switches 4 feet-6 inches above finished floor unless otherwise noted.
H. Identify each conductor with the circuit number and the lighting panel number. Identification shall conform to the requirements of Section 16122.
I. Devices and coverplates shall be plumb and parallel to adjacent surfaces or trim. Flushmounted devices must be flush with finished wall surfaces and the coverplates must be tight to surfaces over which they are installed.
J. Receptacles identified as GFCI or when required by the NEC shall have individual GFCI receptacles installed for each outlet. Installing a single GFCI receptacle and standard receptacles connected to the load side of the single GFCI receptacle is unacceptable.
K. Identify each receptacle with a permanent self-adhesive label. Approximate size 3/8” x 1- 1/4”. The label shall include the panel name and circuit number.
1. Product and Manufacturer: Provide one of the following:
a. Catalog No. PTL-45422 by Brady.
b. Substitutions: Approved equal.
L. Install in conformance with National Electrical Code.
END OF SECTION
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592-50-22-14 Overcurrent Protective Devices Thickening and Dewatering Improvements
SECTION 16180
OVERCURRENT PROTECTIVE DEVICES
PART 1 - GENERAL
1.01 SECTION INCLUDES
A. Overcurrent protective devices for panelboards, lighting control panelboards, switchboards, motor control centers, motor controllers, variable frequency drives, and enclosed overcurrent protective devices. The words “switchboard” and “motor control center” are used interchangeably.
B. Work Includes
1. Circuit breakers.
2. Bolted pressure switches.
3. Fuses.
4. Trip unit retrofits for existing circuit breakers.
1.02 REFERENCED SECTIONS
A. Section 01330 – Submittals
1.03 SUBMITTALS
A. Submit product data in accordance with Section 01330.
B. Make submittal in the section specifying the equipment containing the devices; (i.e. submit molded case panelboard branch circuit breakers, motor control center breaker buckets/doors/breakers).
C. Product Data:
1. Sufficient information, clearly presented, shall be included to determine compliance with drawings and specifications. Submittal shall have material keyed to device and/or panelboard(s)/switchboard(s) designations on plans.
2. Include device type, frame and trip ratings, voltage and AIC ratings, mounting, and accessories.
1.04 APPLICABLE PUBLICATIONS
A. Publications listed below (including amendments, addenda, revisions, supplements and errata) form a part of this specification to the extent referenced. Publications are referenced in the text by basic designation only.
B. Institute of Engineering and Electronic Engineers (IEEE):
1. C37.13-90, Low Voltage AC Power Circuit Breakers Used in Enclosures
2. C37.51-89, Test Procedures for Low-voltage AC Power Circuit Breakers Used in Enclosures.
3. C57.13-93, Instrument Transformers
4. C62.41-91, Surge Voltage in Low Volume AC Power Circuits
5. C62.45-92, Testing for Equipment connected to Low-Voltage AC Power Circuits
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C. National Electrical Manufacturer's Association (NEMA):
1. PB-2-95, Dead-Front Distribution Switchboards.
2. PB-2.1-96, Instructions for Safe Handling, Installation, Operation, and Maintenance of Switchboards
3. AB-1-93, Molded Case Circuit Breakers
D. National Fire Protection Association (NFPA):
1. NFPA 70,National Electrical Code (NEC)
E. Underwriters Laboratories, Inc. (UL):
1. 67-93, Panelboards
2. 489-96, Molded Case Circuit Breakers and Circuit Breakers Enclosures
3. 891-98, Dead-Front Switchboards
4. 1283-98, Electromagnetic Interference Filters
5. 1449-96, Transit Voltage Surge Suppressors
PART 2 - PRODUCTS
2.01 ACCEPTABLE MANUFACTURERS
A. Circuit Breakers:
1. Square D.
B. Fuses:
1. Buss.
2. Ferraz-Shawmut.
3. Littelfuse.
4. Approved equal.
2.02 MOLDED CASE CIRCUIT BREAKERS FOR BRANCH CIRCUIT PANELBOARDS A. Breakers shall be UL listed and labeled, in accordance with the NEC, as shown on the drawings, and as herein specified. Breakers shall be products of the panelboard manufacturer.
B. Breakers shall be standard-rated unless otherwise noted.
C. Circuit breakers shall be bolt-on type for 277/480V panelboards and plug-on type for 120/208V panelboards, unless otherwise indicated.
D. Construction:
1. Each breaker shall consist of molded case frame, operating mechanism, arc extinguishers, contacts, trip elements, and terminal connectors.
2. The operating mechanism shall be toggle type, quick-make, quick-break, trip free.
The handle shall be clearly marked with the rating, and shall indicate the position (ON, OFF or TRIPPED). Multi-pole breakers shall have common trips. The contacts shall be silver alloy. The breaker shall have a arc quenchers and phase barriers for each pole. An overload on one pole of a multi-pole breaker shall automatically cause all the poles of the breaker to open. a. The following materials shall not be acceptable: tie handles on circuit breakers; tandem, duplex, wafer breakers, etc.
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3. Breakers shall have noninterchangeable trips except where permitted otherwise in the plans.
4. Two visible forms of Tripped indication, by breaker handle residing between the On and Off positions and by trip indicator appearing in the window of the circuit breaker housing.
E. Rating: Molded case circuit breakers shall have minimum interrupting rating as shown on drawings.
F. Solenoid operated circuit breakers in lighting control panelboards shall meet the requirements above, and have the following additional features:
1. Remote-controlled latching type.
2. Shall accept input from a low-voltage signal for Open and Closed contact positioning. Contacts shall remain Open when the breaker handle is in the Off or Tripped position regardless of the low voltage control signal. Remote control shall only be possible with the breaker handle in the On position.
3. Shall have an integral low-voltage control connector.
4. Shall have an electrical life of 200,000 operations at 80% load and 0.8 power factor.
G. Where main breaker frame size shown is insufficient to land conductors shown on plans, provide manufacturer’s accessory lug kits or increase breaker frame size to accommodate conductors shown.
2.03 MOTOR CONTROL CENTER MOLDED CASE CIRCUIT BREAKERS UNDER 1,000 AMPERES A. Circuit breakers may be installed in motor control centers, variable frequency drives, combination motor controllers, and locations as shown on plans.
B. Construction:
1. Each breaker shall consist of bolt-on molded case frame, operating mechanism, arc extinguishers, contacts, trip elements, and terminal connectors.
2. The operating mechanism shall be quick-make, quick-break, over center toggletype, and the handle mechanism shall be trip free to prevent holding the contacts closed against a short circuit or sustained overload. The handle shall be clearly marked with the rating, and shall indicate the position (ON, OFF or TRIPPED).
Multi-pole breakers shall have common trips. An overload on one pole of a multi-pole breaker shall automatically cause all the poles of the breaker to open.
C. Rating:
1. Voltage rating shall not be less than the applicable circuit voltage.
2. The interrupting rating shall be at least equal to the indicated short circuit current rating (SCCR) of the motor control center or variable frequency drive where installed.
3. All breakers shall be U.L. listed for application in their intended enclosure for 80% of their continuous ampere rating unless otherwise noted on the plans.
D. Thermal-magnetic trip elements
1. Automatic operation shall be obtained by means of thermal-magnetic tripping devices located in each pole providing inverse time delay and instantaneous circuit protection. The magnetic trip shall be adjustable and accessible from the front of all circuit breakers on frame sizes above 400 amperes.
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E. Solid state trip elements
1. Solid state electronics shall be self-contained and require no external relaying, power supply, or accessories. Sensing shall measure true RMS current and shall be toroidal construction, epoxy-encased, and integral to the circuit breaker. Circuit breakers shall have tripping functions as shown on the drawings and as described below:
a. Long-time current pickup, adjustable from 50 percent to 100 percent on continuous current rating.
b. Adjustable long-time delay.
c. Short-time current pickup, adjustable from 1.5 to 9 times long-time current rating.
d. Adjustable short-time delay.
e. Short-time I squared times t switch.
f. Instantaneous current pickup, adjustable from 1.5 to 9 times long-time current rating.
g. Ground-fault pickup, adjustable from 20 percent to 60 percent of sensor rating, but not greater than 1200 amperes. Sensing of ground fault current at the main bonding jumper or ground strap is not acceptable. Zoneselective interlocking shall be provided where shown. h. Adjustable ground-fault delay.
i. Ground-fault I squared times t switch.
j. Overload and ground-fault trip indicators shall be provided.
F. Frame size:
1. Where frame size shown is insufficient to land conductors shown on plans, provide manufacturer’s accessory lug kits or increase breaker frame size to accommodate conductors shown.
G. Accessories:
1. Circuit breakers shall have accessories or auxiliary functions as shown on plans.
2.04 MOTOR CONTROL CENTER INSULATED CASE CIRCUIT BREAKERS UNDER 400 AMPERES A. Circuit breakers may be installed in switchboards, enclosures, motor control centers, and locations as shown on plans.
B. Construction:
1. Each breaker shall consist of bolt-on insulated case frame, operating mechanism, arc extinguishers, contacts, solid state trip unit, and terminal connectors.
2. The operating mechanism shall be quick-make, quick-break, over center toggletype, and the handle mechanism shall be trip free to prevent holding the contacts closed against a short circuit or sustained overload. The handle shall be clearly marked with the rating, and shall indicate the position (ON, OFF or TRIPPED).
Multi-pole breakers shall have common trips. An overload on one pole of a multi-pole breaker shall automatically cause all the poles of the breaker to open.
C. Rating:
1. Voltage rating shall not be less than the applicable circuit voltage.
2. The interrupting rating shall be at least equal to the indicated short circuit current rating (SCCR) of the motor control center or variable frequency drive where installed.
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3. All breakers shall be U.L. listed for application in their intended enclosure for 80% of their continuous ampere rating., unless otherwise noted.
D. Solid-state trip unit:
1. Solid state electronics shall be self-contained and require no external relaying, power supply, or accessories. Sensing shall measure true RMS current and shall be toroidal construction, epoxy-encased, and integral to the circuit breaker. Circuit breakers shall have tripping functions as shown on the drawings and as described below:
a. Long-time current pickup, adjustable from 50 percent to 100 percent on continuous current rating.
b. Fixed long-time delay.
c. Short-time current pickup, adjustable from 1.5 to 9 times long-time current rating.
d. Fixed short-time delay.
e. Short-time I squared times t switch]
f. Ground-fault pickup, adjustable from 20 percent to 60 percent of sensor rating, but not greater than 1200 amperes. Sensing of ground fault current at the main bonding jumper or ground strap is not acceptable. Zoneselective interlocking shall be provided where shown. g. Fixed ground-fault delay.
h. Ground-fault I squared times t switch.
i. Overload and ground-fault trip indicators shall be provided.
E. Frame size:
1. Where frame size shown is insufficient to land conductors shown on plans, provide manufacturer’s accessory lug kits or increase breaker frame size to accommodate conductors shown.
F. Accessories:
1. The following accessories shall be available, and provided as shown on plans:
shunt trip, spring release, undervoltage release, and auxiliary switch contacts that indicate breaker contact position. Accessories shall be field-installable, plug-in types.
2.05 FUSES
A. Types:
1. Main Service Feeders and Branch Circuits:
a. Switch rating over 600 amperes; Hi-Cap Type KRP-C UL Class L with interrupting rating of 200,000 amperes RMS.
b. Switch rating 600 amperes or less; low-peak current limiting fuses, LP-RK UL Class RK1 with interrupting rating of 200,000 amperes RMS.
2. Motors 3/4 Horsepower or Greater:
a. Fuse rating 600 amperes or less: UL Class K5 dual-element currentlimiting with interrupting rating of 200,000 amperes RMS. b. Fuses shall be sized for motor running current, per applicable NEC Article 430.
c. Equipment With Hermetic Compressors: Fusetron or HACR breaker, sized per manufacturer’s nameplate.
d. All fuses shall be of the Class “R” rejection type.
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B. Coordination: Fuses for all feeders, branch circuits, motors, and other equipment to be selected in types and ratings in accordance with NEC to provide a coordinated system of overcurrent protection.
PART 3 - EXECUTION
3.01 CIRCUIT BREAKERS
A. Install according to NEC, and manufacturer’s recommendations.
B. Where new circuit breakers are installed in existing panelboards, match the existing type, manufacturer, and AIC rating unless otherwise shown.
C. Torque all lugs per manufacturer’s specifications.
3.02 FUSES
A. Fuses shall be mounted so that the labels showing their rating can be read without requiring fuse removal.
B. Provide one spare set of (3) of each size and type of fuses rated at 100 amperes and over, and two spare sets of (3) of each size and type of fuse rated below 100 amperes. Provide a typed list of the spare fuses, detailing catalog number and application equipment for each spare fuse provided.
3.03 TRIP UNIT INSTALLATION ON EXISTING CIRCUIT BREAKERS A. De-energize breaker (if necessary) and remove existing trip unit.
B. Install and test new unit per manufacturer’s instructions. Owner will provide settings for new units.
END OF SECTION
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592-50-22-14 Identification for Electrical Systems Thickening and Dewatering Improvements
SECTION 16195
IDENTIFICATION FOR ELECTRICAL SYSTEMS
PART 1 - GENERAL
1.01 SECTION INCLUDES
A. Nameplates.
B. Wire markers.
C. Conduit markers.
1.02 REFERENCED SECTIONS
A. Section 01330 – Submittals
B. Section 16050 – Electrical Work
1.03 SUBMITTALS
A. Refer to Section 01330 for submittal requirements.
B. Product Data:
1. Submit manufacturer's catalog literature for each product required.
2. Submit electrical identification schedule including list of wording, symbols, letter size, color coding, tag number, location, and function. Identification for AC powered equipment to include voltage and power source.
C. Manufacturer's Installation Instructions: Indicate installation instructions, special procedures, and installation.
D. Closeout Submittals
1. Project Record Documents: Record actual locations of tagged devices; include tag numbers.
1.04 QUALITY ASSURANCE
A. Manufacturer: Company specializing in manufacturing products specified in this Section with minimum three years experience.
B. Installer: Company specializing in performing Work of this Section.
1.05 DELIVERY, STORAGE, AND HANDLING
A. Refer to Specification Section 16050, for requirements related to transporting, handling, storing, and protecting products.
B. Accept identification products on site in original containers. Inspect for damage.
C. Accept materials on site in original factory packaging, labeled with manufacturer's identification, including product density and thickness.
D. Protect insulation from weather and construction traffic, dirt, water, chemical, and mechanical damage, by storing in original wrapping.
1.06 ENVIRONMENTAL REQUIREMENTS
A. Refer to Specification Section 16050 for environmental conditions affecting products on site.
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PART 2 - PRODUCTS
2.01 NAMEPLATES
A. Manufacturers:
1. Craftmark Pipe Markers.
2. Kolbi Pipe Marker Co.
3. Pipemarker.com; Brimar Industries, Inc.
4. Seton Identification Products; a Brady Corporation company.
5. Substitutions: Or equal.
B. Product Description: Laminated three-layer plastic with engraved black letters on white contrasting background color.
C. Letter Size:
1. 3/16 inch high letters for identifying individual equipment and loads.
2. 1/4 inch high letters for identifying grouped equipment and loads.
D. Minimum nameplate thickness: 1/8 inch.
2.02 WIRE MARKERS
A. Manufacturers:
1. Brady ID.
2. Grafoplast Wire Markers.
3. Ideal Industries, Inc.
4. Substitutions: Or equal.
B. Description: Brady PSPT perma-sleeve heat shrinkable white polyolefin (B-342) labels, for conductor sizes 28 AWG to 500 KCMIL.
C. Legend:
1. Power and Lighting Circuits: Branch circuit or feeder number.
2. Control Circuits: Control wire number as indicated on schematic and interconnection diagrams.
2.03 CONDUIT AND RACEWAY MARKERS
A. Manufacturers:
1. Seton Identification Products; a Brady Corporation company.
2. Substitutions: Or equal.
B. Description: Brass Tags - Raceway Markers
1. Material: 1.5 inch circular brass tags stamped with 3/16 inch high characters.
2. Lettering: Stamped with 3/16 inch high characters.
3. Stainless Steel Tie: Attached with cleanly cut 48 mil stainless steel wire secured and or spliced with an irreversible style crimp.
4. Tie Installation Tool: Proper tool approved for the purpose.
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PART 3 - EXECUTION
3.01 PREPARATION
A. Degrease and clean surfaces to receive adhesive for identification materials.
3.02 EXISTING WORK
A. Install identification on existing equipment to remain in accordance with this Section.
B. Install identification on unmarked existing equipment.
C. Replace lost nameplates, labels, and markers.
3.03 INSTALLATION
A. Install identifying devices after completion of painting.
B. Nameplate Installation:
1. Install nameplate parallel to equipment lines.
2. Install nameplate for each electrical distribution and control equipment enclosure with stainless steel screws.
3. Install nameplates for each control panel and major control components located outside panel with stainless steel screws.
4. Install left to right, top to bottom.
5. Secure nameplate to equipment front using stainless steel screws.
6. Secure nameplate to inside surface of door on recessed panelboard in finished locations.
7. Install nameplates for the following:
a. Control panels.
b. Instruments and controls.
c. Junction boxes.
d. Other electrical equipment where shown on the drawings or specified.
C. Wire Marker Installation:
1. Install wire marker for each conductor at each connection.
2. Installation of wire markers shall be consistent in installation and installed so they read top to bottom for vertically terminated wires and read left to right for horizontally terminated wires.
3. Mark data cabling at each end. Install additional marking at accessible locations along the cable run.
4. Install labels at data outlets identifying patch panel and port designation as indicated on Drawings.
D. Conduit or Raceway Marker Installation:
1. Install marker for each conduit or raceway longer than 6 feet.
2. Conduit or Raceway Marker Spacing: Locations: All terminations.
3. All tags shall be clearly legible or will otherwise be rejected.
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4. All shall be identified on both ends using a to/from system that identifies the origination or destination of the conduit and will stay consistent throughout the project. The identification tag will contain the job specific tag and or identifier for the equipment at which that conduit ends. If in question, the owner will determine the information to be provided on the tag.
5. Tagging will be accomplished by use of the following methods, 1.5 inch circular brass tags stamped with 3/16 inch high characters and attached with cleanly cut 48 mil stainless steel wire secured and or spliced with an irreversible style crimp using the proper tools approved for the purpose.
END OF SECTION
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SECTION 16215
POWER SYSTEM STUDY
PART 1 - GENERAL
1.01 DESCRIPTION
A. General:
1. Prepare a short circuit and coordination study for the electrical power system. The short circuit and coordination study reports shall provide an evaluation of the electrical power systems and the model numbers and settings of the protective devices.
B. Scope:
1. Provide a complete short circuit study, equipment interrupting or withstand evaluation, and a protective device coordination study for the indicated new components of the existing Plant power distribution system. The study shall include all portions of the electrical power distribution system. Normal system operating method, alternate operation, and operations which could result in maximum fault conditions shall be thoroughly addressed in the study. The study shall assume all motors operating at rated voltage with the exception that motors identified as "standby" shall not be included. Electrical equipment bus impedance shall be assumed zero. Short circuit momentary duties and interrupting duties shall be calculated on the basis of maximum available fault current at the switchgear busses and motor control centers. The phase over-current and ground-fault protection shall be included as well as settings for all other adjustable protective devices.
2. An equipment evaluation study shall be performed to determine the adequacy of circuit breakers, controllers, surge arresters, busways, switches, and fuses by tabulating and comparing the short circuit ratings of these devices with the available fault currents.
3. Any problem areas or inadequacies in the equipment shall be promptly brought to the ENGINEER'S attention.
1.02 REFERENCES
A. This Section contains references to the following documents. They are a part of this Section as specified and modified. In case of conflict between the requirements of this Section and those of the listed documents, the requirements of this Section shall prevail.
1. IEEE 141-86, Recommended Practice for Electric Power Distribution for Industrial Plants
2. IEEE 242-86, Recommended Practice for Protection and Coordination of Industrial and Commercial Power Systems
PART 2 - PRODUCTS
2.01 REPORTS
A. The product shall be a certified report summarizing the short circuit and coordination study and conclusions or recommendations which may affect the integrity of the electric power distribution system. As a minimum, the report shall include the following:
1. The equipment manufacturer's information used to prepare the study.
2. Assumptions made during the study.
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3. Short circuit calculations listing short circuit levels at each bus.
4. Coordination study time-current curves including the instrument transformer ratios, model numbers of the protective relays, and the relay settings associated with each breaker.
5. Comparison of short circuit duties of each bus to the interrupting capacity of the equipment protecting that bus.
6. All data which was used as input to the report. This data shall include cable impedances, source impedances, equipment ratings, etc.
PART 3 - EXECUTION
3.01 GENERAL
A. Provide a short circuit and coordination study on the electrical power distribution system, as specified. The study shall be performed in accordance with IEEE Standards 141 and 242 and shall utilize the ANSI method of short circuit analysis in accordance with ANSI C37.010. The study shall be performed using actual equipment data for all equipment. The coordination study shall use the data from the manufacturer of protective devices.
3.02 QUALIFICATIONS
A. The short circuit and coordination report shall be performed by an electrical testing service who is regularly engaged in power system studies. The studies shall be signed and sealed by a Registered Professional Electrical Engineer. The Registered Professional Electrical Engineer shall be licensed in the State of Arizona.
3.03 SHORT CIRCUIT STUDIES
A. Responsibility to obtain and verify all data needed to perform the studies belongs to CONTRACTOR.
B. As a minimum, each short circuit study shall include the following:
1. One-Line Diagram:
a. Location and function of each protective device in the system, such as relays, direct-acting trips, fuses, etc.
b. Type designation, current rating, range or adjustment, manufacturer's style and catalog number for all protective devices.
c. Power, voltage ratings, impedance, primary and secondary connections of all transformers.
d. Type, manufacturer, and ratio of all instrument transformers energizing each relay.
e. Nameplate ratings of all motors and generators with their subtransient reactances. Transient reactances of synchronous motors and generators and synchronous reactances of all generators.
f. Sources of short circuit currents such as utility ties, generators, synchronous motors, and induction motors. g. All significant circuit elements such as transformers, cables, breakers, fuses, reactors, etc.
h. Emergency as well as normal switching conditions.
i. The time-current setting of existing adjustable relays and direct-acting trips, if applicable.
2. Impedance Diagram:
a. Available MVA or impedance from the utility company.
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b. Local generated capacity impedance.
c. Bus impedance.
d. Transformer and/or reactor impedances.
e. Cable impedances.
f. Equipment impedances.
g. System voltages.
h. Grounding scheme (resistance grounding, solid grounding, or no grounding).
3. Calculations:
a. Determine the paths and situations where short circuit currents are the greatest. Assume bolted faults and calculate the 3-phase and line-toground short circuits of each case. b. Calculate the maximum and minimum fault currents.
3.04 COORDINATION STUDY
A. As a minimum, the coordination study for the power distribution system shall include the following on 5-cycle, log-log graph paper:
1. Time-current curves for each protective relay or fuse showing graphically that the settings will provide protection and selectivity within industry standards. Each curve shall be identified, and the tap and time dial settings shall be specified.
2. Time-current curves for each device shall be positioned to provide for maximum selectivity to minimize system disturbances during fault clearing. Where selectivity cannot be achieved, the ENGINEER shall be notified as to the cause.
3. Time-current curves and points for cable and equipment damage.
4. Circuit interrupting device operating and interrupting times.
5. Indicate maximum fault values on the graph.
6. Sketch of bus and breaker arrangement.
END OF SECTION
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592-50-22-14 Power System Study Thickening and Dewatering Improvements
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West Yost – March 2023 16411 - 1 City of Ukiah
592-50-22-14 Disconnect Switches Thickening and Dewatering Improvements
SECTION 16411
DISCONNECT SWITCHES
PART 1 - GENERAL
1.01 DESCRIPTION
A. Provide labor, materials, equipment and incidentals as shown on the Drawings, specified and required to furnish and install disconnect switches.
1.02 REFERENCED SECTIONS
A. Section 16070 – Hangers and Supports for Electrical Systems B. Section 16140 – Wiring Devices
C. Section 16180 – Overcurrent Protective Devices
D. Section 16195 – Identification for Electrical Systems
1.03 QUALITY ASSURANCE
A. Reference Standards: Comply with applicable provisions and recommendations of the following, except where otherwise shown or specified:
B. International Electrical Testing Association:
1. NETA ATS - Acceptance Testing Specifications for Electrical Power Distribution Equipment and Systems.
C. National Electrical Manufacturers Association:
1. NEMA KS-1, Enclosed Switches.
2. NEMA 250, Enclosures for Electrical Equipment (1,000 Volts Maximum).
D. National Fire Protection Association:
1. NFPA 70, National Electrical Code.
E. Underwriters Laboratory
1. UL Standard No. 98, Enclosed Switches.
1.04 SUBMITTALS
A. Shop Drawings: Submit for approval the following:
1. Manufacturer's technical information for disconnect switches proposed for use.
2. Snap Switches (for disconnect switches on 120 volt, single phase circuits) coordinate with Section 16140.
3. Listing of the switches to be furnished with an identification of their location, intended load(s) being served, horsepower and current rating, voltage rating, number of poles and wires, NEMA enclosure type and enclosure dimensions.
4. Closeout Submittals
5. Project Record Documents: Record actual locations of enclosed switches and ratings of installed fuses.
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1.05 QUALIFICATIONS
A. Manufacturer: Company specializing in manufacturing products specified in this section with minimum three years experience.
1.06 EXTRA MATERIALS
A. Furnish three spare fuses of each Class, size, and rating installed.
PART 2 - PRODUCTS
2.01 FUSIBLE SWITCH ASSEMBLIES
A. Manufacturer:
1. Cutler-Hammer / Eaton
2. Square D Company / Schneider Electric.
3. Siemens
4. Substitutions: Approved equal.
B. Product Description:
1. NEMA KS 1, Type Heavy Duty (HD) with externally operable handle interlocked to prevent opening front cover with switch in ON position, enclosed load interrupter knife switch[and neutral kit].
2. Handle lockable in OFF position.
C. Fuse clips: Designed to accommodate NEMA FU 1, Class R fuses.
D. Switch Ratings
1. Rating: Voltage and current ratings and number of poles as required for motor or equipment circuits being disconnected. Switches shall bear a UL label.
2. Switch Rating: Horsepower rated for AC or DC as indicated on Drawings.
3. Short Circuit Current Rating: UL listed for 65,000 rms symmetrical amperes when used with or protected by Class R or Class J fuses.
E. Provide auxiliary dry contacts to indicate switch position.
F. Enclosure: NEMA 250, to meet conditions:
1. Exterior Locations: Type 4X, 316 stainless steel.
2. Wet, Damp, Process, Washdown, or Corrosive Locations: Type 4X, 316 stainless steel.
3. Hazardous Areas: Type 7.
G. Service Disconnect Switches: (Not Applicable)
H. Furnish switches with entirely copper current carrying parts.
2.02 NON-FUSIBLE SWITCH ASSEMBLIES
A. Product Description:
1. NEMA KS 1, Type Heavy Duty (HD) with externally operable handle interlocked to prevent opening front cover with switch in ON position, enclosed load interrupter knife switch.
2. Handle lockable in OFF position.
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B. Furnish switches with entirely copper current carrying parts.
C. Enclosure: NEMA 250, to meet conditions:
1. Interior Dry Locations: Type 12.
2. Exterior Locations: Type 4X, 316 stainless steel.
3. Wet, Damp, Process, Washdown, or Corrosive Locations: Type 4X, 316 stainless steel.
4. Hazardous Areas: Type 7.
D. Switch Ratings
1. Rating: Voltage and current ratings and number of poles as required for motor or equipment circuits being disconnected. Switches shall bear a UL label.
2. Switch Rating: Horsepower rated for AC or DC as indicated on Drawings.
3. Short Circuit Current Rating: UL listed for 65,000 rms symmetrical amperes when used with or protected by Class R or Class J fuses.
E. Provide auxiliary dry contacts to indicate switch position.
F. Disconnect switches installed for motors being served by variable frequency drives or where indicated shall include a dry contact that opens before the switch blades open. When the disconnect switch is switched to the OFF position, this contact can be used to deenergize serving equipment before the phase conductors are opened.
2.03 MATERIALS
A. Double Throw Safety Switches: (Not Applicable)
B. Identification:
1. Identify all enclosures in accordance with Section 16195.
2. Nameplate identifying equipment, include identification of the equipment served and source of power, for which switches serve as the disconnecting means.
Nameplates shall be permanently fastened to enclosures.
PART 3 - EXECUTION
3.01 EXISTING WORK
A. Disconnect and remove abandoned enclosed switches.
B. Maintain access to existing enclosed switches and other installations remaining active and requiring access. Modify installation or provide access panel.
C. Clean and repair existing enclosed switches to remain or to be reinstalled.
3.02 INSTALLATION
A. Install enclosed switches plumb and level. Provide supports in accordance with Section 16070.
B. Height: 5 feet to operating handle or as indicated on the Drawings.
C. Install fuses for fusible disconnect switches. Refer to Section 16180 for product requirements.
D. Install engraved plastic nameplates in accordance with Section 16195.
E. Apply adhesive tag on inside door of each fused switch indicating NEMA fuse class and size installed.
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3.03 FIELD QUALITY CONTROL
A. Inspect and test in accordance with NETA ATS, except Section 4.
B. Perform inspections and tests listed in NETA ATS, Section 7.5.
3.04 INSTALLATION
A. Prior to installing disconnect switches, coordinate with other trades to verify conduits have adequate space to leave and enter the switch enclosure and for required code clearance.
A minimum working clearance as defined by the NEC 110-26 shall be provided.
B. Mount equipment so that sufficient access and working space is provided for ready and safe operation and maintenance.
C. Securely fasten equipment to walls or other structural supports on which they are mounted.
Provide independent stainless steel supports where no wall or other structural surface exists.
D. Furnish one set of spare fuses for each fused disconnect switch to be installed.
E. Install in conformance with National Electrical Code.
END OF SECTION
West Yost – March 2023 16450 - 1 City of Ukiah
592-50-22-14 Grounding and Bonding for Electrical Systems Thickening and Dewatering Improvements
SECTION 16450
GROUNDING AND BONDING FOR ELECTRICAL SYSTEMS
PART 1 - GENERAL
1.01 SECTION INCLUDES
A. System Grounding:
1. Secondary service neutrals shall be grounded at the supply side of the secondary disconnecting means and at the related transformers.
2. Separately derived systems (transformers downstream from the service entrance) shall have the secondary neutral grounded to building steel with an exothermic weld [at the first overcurrent protective disconnecting means on the secondary feeder, before any utilization].
B. Equipment Grounding:
1. Metallic structures, enclosures, raceways, junction boxes, outlet boxes, cabinets, machine frames, and other conductive items in close proximity with electrical circuits shall be grounded for personnel safety and to provide a low impedance path for possible ground fault currents.
1.02 REFERENCED SECTIONS
A. Section 01330 – Submittals
1.03 SUBMITTALS
A. Provide submittals for grounding, components, and accessories per Section 01330.
B. Product Data:
1. Submit catalog cuts and descriptive literature for approval as specified herein.
2. Sufficient information, clearly presented, shall be included to determine compliance with drawings and specifications.
3. The specific item(s) proposed shall be marked on the catalog cuts.
C. Test Reports: Submit certified test reports of ground resistance to the Architect/Engineer for approval.
1.04 REFERENCES
A. National Fire Protection Association (NFPA) Publications:
1. No. 70, National Electrical Code (NEC)
B. Underwriters Laboratories, Inc. (UL) Publications:
1. No. 83, Thermoplastic-Insulated Wires
2. No. 44, Rubber-Insulated Wires and Cables
3. No. 46, Electrical Grounding and Bonding Equipment
PART 2 - PRODUCTS
2.01 GROUNDING WIRES
A. Bare stranded copper. Equipment grounding conductors shall be insulated.
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B. Wire size shall not be less than shown on the drawings and not less than required by the NEC.
2.02 GROUND RODS
A. Copper-clad steel, not less than 5/8” diameter by 10 feet long.
2.03 PLATE ELECTRODES
A. Copper-clad steel, minimum 1/4” thick, 2 sq. ft. one-side surface area.
PART 3 - EXECUTION
3.01 INSTALLATION, GENERALLY
A. Grounding shall be in accordance with the NEC, as shown on the drawings, and as hereinafter specified.
B. Underground or inaccessible bonding connections, as well as all connections with or interconnections between grounding electrode conductors, including rebar used as a grounding electrode, shall be made by an approved exothermic welding process. All materials used in an exothermic process shall be by the same manufacturer, and the manufacturer’s requirements for preparations of conductors and materials shall be strictly followed.
3.02 EQUIPMENT AND CIRCUITS
A. Conduit Systems:
1. Line voltage conduit systems, metallic and non-metallic, shall contain a grounding conductor.
2. Conduit provided for mechanical protection and containing only a grounding conductor shall be bonded to that conductor at the entrance and exit from the conduit.
3. Conduit that runs to or from boxes, cabinets or enclosures having concentric knockouts which have not been removed at the conduit connection, shall be provided with bonding jumpers sized in accordance with NEC Table 250.122, and connected with a grounding type bushing / locknut on the conduit and a ground bus or stud inside the box.
B. Cable Tray: (not Used)
C. Feeders and Branch Circuits: Install insulated green grounding conductors with all feeders and branch circuits as follows:
1. Feeders serving equipment.
2. Receptacles and lighting fixtures.
3. All items of equipment where the final connection is made with flexible metal conduit shall have a grounding wire.
4. All additional locations and systems as shown on the drawings and as required by the code.
D. Boxes, Cabinets, Enclosures and Panelboards:
1. Bond the grounding wires to each pull box, junction box, outlet box, cabinets, and other enclosures through which the ground wires pass.
2. Provide lugs in each box and enclosure for ground wire termination.
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3. Provide ground bars in panelboards, bolted or welded to the housing (no self tapping or self drilling sheet metal type screws allowed), with sufficient lugs for terminating the ground wires. Bond to neutral where panelboard main serves as building disconnect.
E. Motors and Starters: Provide lugs in motor terminal box and starter housing for ground wire termination.
F. Lighting Fixtures: Shall not be grounded through the conduit systems. Fixtures connected with flexible conduit shall have a ground wire included with the power wires from the fixture through the flexible conduit to the first outlet box. The grounding conductor shall be attached to the fixture housing, not the wiring access cover.
G. Electrical Appliances and Equipment: Fixed electrical appliances and equipment shall have a ground lug installed for termination of the ground conductor.
3.03 CONDUCTIVE PIPING
A. Bond conductive piping systems in the building to the grounding electrode conductor.
Bonding connections shall be made as close as practical to the water pipe ground or service equipment ground bus.
3.04 UFER GROUND
A. The grounding electrode conductor shall be bonded to a UFER ground, consisting of minimum 20’ of #4 bare copper encased in minimum 2” of concrete on all sides.
3.05 BUILDING STEEL
A. The grounding electrode conductor shall be bonded to building steel.
3.06 LIGHTNING PROTECTION SYSTEM
A. The lightning protection system shall be bonded to the building ground system.
3.07 GROUND ROD AND PLATE INSTALLATION
A. Where rock refusal occurs, and rod installation per NEC Article 250 is not possible, plate electrodes shall be used.
3.08 GROUND RESISTANCE
A. Maximum ground resistance shall be 5 ohms.
B. Necessary modifications to the ground electrodes for compliance with minimum requirements shall be without additional cost to the Owner.
C. The grounding system shall be tested to ensure that the ground resistance does not exceed that specified. A clamp-on ground resistance test instrument shall be used to test for ground resistance and soil resistivity. Provide a report to the Engineer of the measured ground resistance, including ground resistance after any modifications to the grounding electrodes required to bring the system into compliance with the maximum allowed ground resistance.
END OF SECTION
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592-50-22-14 Grounding and Bonding for Electrical Systems Thickening and Dewatering Improvements
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West Yost – March 2023 16481 - 1 City of Ukiah
592-50-22-14 Variable Frequency Drives Thickening and Dewatering Improvements
SECTION 16481
VARIABLE FREQUENCY DRIVES
PART 1 - GENERAL
1.01 DESCRIPTION
A. Scope:
1. Provide all labor, materials, equipment, and incidentals required to furnish and install variable frequency drives (VFD), complete and operational with controls and accessories as shown on the Drawings and as specified.
B. Coordination:
1. Coordinate speed control, starting and acceleration torque requirements with the driven equipment.
2. Responsibility belongs to CONTRACTOR for coordinating all VFD units with the driven equipment to obtain successful operation throughout the driven equipment speed range.
1.02 REFERENCED SECTIONS
A. The following Sections are referenced in this Section
1. Section 01782 – Operations and Maintenance Information
2. Section 09960 – High Performance Coatings
1.03 QUALITY ASSURANCE
A. Manufacturer’s Qualifications:
1. Manufacturer shall have a minimum of five years experience of producing substantially similar equipment and shall be able to show evidence of at least five installations in satisfactory operation for at least five years. Prototypes or newly introduced drive unit models will not be acceptable.
B. The manufacturer shall demonstrate, in writing, the Quality Assurance Program in use to certify key components. In-house manufacture of key components is desirable and will be considered in evaluating acceptance.
C. Reference Standards: Comply with applicable provisions and recommendations of the following, except as otherwise shown or specified.
1. National Electrical Code.
2. Standards of National Electrical Manufacturers Association.
3. Institute of Electrical and Electronic Engineers.
4. American Gear Manufacturers Association.
5. National Fire Protection Association 79, Electrical Standard for Industrial Machinery.
D. For the equipment specified herein, the manufacturer shall be ISO 9000, 9001 or 9002 certified.
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592-50-22-14 Variable Frequency Drives Thickening and Dewatering Improvements
1.04 SUBMITTALS
A. Shop Drawings: Submit for approval the following:
1. Manufacturer's literature, illustrations, specifications and engineering data which indicate performance, dimensions, materials, size and weight.
B. Fabrication, assembly and installation drawings, and wiring diagrams. Wiring diagrams shall comply with Division 16.
1. Complete list of components and catalogue identification.
2. List of in-house manufactured key components.
3. Quality Assurance Program description.
4. Complete description of schematic and wiring diagrams and functional operation.
5. Recommended spare parts list.
C. Operation and Maintenance Manuals:
1. Submit complete installation, operation and maintenance manuals including test reports, maintenance data and schedules, description of operation and spare parts information.
2. Furnish Operation and Maintenance Manuals in conformance with requirements of Section 01782.
3. Furnish list of final parameters and function selections programmed into each drive control module.
1.05 SHOP TESTS
A. Each variable frequency drive (VFD) shall be tested at the manufacturer's facility.
B. If the test results indicate that any VFD unit does not conform to specified and/or guaranteed performance, the unit shall be modified and retested, at no additional cost to OWNER, until full compliance with specified and guaranteed performance can be demonstrated. OWNER and/or ENGINEER shall be permitted to witness the retest.
C. No equipment shall be shipped until the ENGINEER has approved all test reports.
PART 2 - PRODUCTS
2.01 GENERAL
A. Furnish and install variable frequency drive units, AC PWM inverter type, 460 volts, sine coded with carrier frequency adjustment, 3 phase, 60 hertz input with output suitable for and coordinated with the driven equipment.
B. The drives shall have the following characteristics:
1. Output voltage (Maximum): 460 volts.
2. Frequency accuracy: ±0.5 percent (at 25°C ±10°C).
3. Frequency range: 3 to 67 hertz, selectable by switch to 120 hertz (Except where otherwise indicated).
4. Volts per hertz ratio (V/HZ) adjustable for 3 to 60 hertz.
5. Overload capacity shall be one minute at 125 percent of continuous constant torque rated nameplate current. The inverter shall be designed to not be internally shutdown within the 125 percent overload operating range.
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6. Constant torque rated for motor nameplate horsepower without revision of inverter unit manufacturer's nameplate published constant torque rating.
C. VFD's shall meet all requirements as outlined in the latest edition of IEEE 519 for total harmonic voltage and current distortion and as indicated in this Section. Individual or simultaneous operation of the VFDs shall not add more than three percent total harmonic voltage distortion while operating. Maximum allowable total harmonic current distortion limits for each VFD shall not exceed five percent as calculated and measured at the point of common coupling. The point of common coupling for all harmonic calculations and field measurements for both voltage and current distortion shall be defined as the nearest upstream MCC. A preliminary harmonic analysis must be submitted by the VFD manufacturer with Shop Drawings which includes all voltage and current harmonics up to the 99th harmonic; for this purpose, cable lengths can be estimated on a conservative basis by CONTRACTOR. Compliance shall be verified with onsite field measurements of both the voltage and current harmonic distortion at the defined point of common coupling with and without the VFD's operating.
D. Product and Manufacturer:
1. Allen-Bradley Power Flex
2. Schneider Electric
3. Substitutions: Approved equal.
2.02 DETAILS OF CONSTRUCTION
A. All VFD's shall be housed within motor control centers (VFD's in motor control centers shall be built by the same manufacturer as the motor control centers) and configured as shown on the Drawings. VFD units shall be individually fed from circuit breakers located in the motor control centers as shown on the Drawings. VFD's shall be located as shown on the Drawings.
2.03 OPERATIONAL DESCRIPTION
A. Operational sequences shall be as shown on the Drawings and described in the applicable Sections of Division 11 and Division 16 of these Specifications.
2.04 OPTIONAL VFD COMPONENTS
A. All VFD units shall be furnished with no less than the following:
1. Input circuit breaker (with current limiting fuses) interlocked with the unit door.
Circuit breaker shall be padlock able in the "OPEN" position.
2. Fused control power transformer.
3. Input line reactor (inductor), three percent.
4. Output load reactor (inductor), three percent.
5. Speed control to be integral on the programmable control module.
6. Process follower to accept 4 to 20 mADC signal input.
7. Output signal of 4 to 20 mADC proportional to speed.
8. All additional devices as shown on the Drawings and specified herein.
2.05 MANUFACTURER
A. The VFD's listed in this Division and in other Divisions shall be the product of one manufacturer. The VFD assembler shall be the manufacturer of the power inverter.
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2.06 TRANSIENT CONDITIONS
A. The drives shall be capable of accepting a supply variation of 460 volts plus five percent or minus ten percent at 60 hertz plus or minus two hertz as a standard design feature.
B. The drives shall be of the diode bridge rectifier front-end type to minimize electrical noise generation and to operate at not less then 95 percent power factor over the full operating range.
C. For sustained or momentary power outages the drives shall have a safe shutdown design with automatic ramp-up return to normal operation, upon restoration of power.
D. For momentary voltage dips which shut down the drive, means shall be provided for automatic ramp-up return to full, controlled operation upon restoration of full line voltage.
2.07 ENVIRONMENT
A. The drive shall be capable of operating under any combination of the following conditions without mechanical or electrical damage:
1. Ambient temperature: 0 to 50°C.
2. Relative humidity: 0 to 95 percent non-condensing.
3. Vibration: 0 to 0.5G.
2.08 CONTROL REQUIREMENTS
A. Current limit circuitry shall automatically phase back voltage and frequency to decrease current to 125 percent of the drive rated capacity.
B. The drive and inverter shall be UL listed and labeled by a nationally recognized testing laboratory.
C. The variable speed drive system shall include a diode bridge converter, filter network and a transistorized inverter section. Base driver signals used to control firing of the power transistors shall be designed with optically coupled isolators.
2.09 PROTECTIVE AND OPERATIONAL CHARACTERISTICS
A. The drives shall have the following protective and operational characteristics in addition to those previously described:
1. Adjustable current limit.
2. Overcurrent trip (125 percent).
3. Short circuit trip (hall-effect current transformer).
4. DC bus overvoltage trip.
5. DC bus fuses.
6. Line undervoltage trip (-30 percent) with automatic restart on voltage recovery.
7. Momentary power failure trip (greater than ten milliseconds) with automatic restart.
8. Line input 3-pole circuit breaker with current limiting fuses or current limiting circuit breaker and door interlock.
9. 4 to 20 mADC output signal proportional to speed.
10. LED display of the following:
a. Overcurrent trip at 125 percent.
b. Internal component short circuit.
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c. Output short circuit.
d. Overload (when soft stall not selected).
e. Overvoltage on DC bus.
f. Overvoltage on input.
g. Undervoltage.
h. Overheat.
i. Ground Fault.
j. Initial parameter mismatch.
11. Electronic motor overload relay.
12. An internal microprocessor shall monitor the load on the drive and in the event of an overload it shall, based on the microprocessor's calculation of the true inverse time overload characteristic, either trip out or phase back the voltage and speed as selected by an internal jumper.
13. Acceleration time: 1 to 20 seconds adjustable.
14. Dynamic braking: 12 percent standard.
15. Ramp to stop: 1 to 20 seconds adjustable.
16. Speed control integral to the programmable control module.
17. Frequency meter integral to the programmable control module.
18. Local/Computer operation solid-state selector switch to be integral to the programmable control module.
19. General fault, run, and stop indication pilot lights mounted on door or integral to the programmable control module. The display must indicate the type of alarm, not part of a general alarm. If programmable control module is not capable of providing indication, provide fault indication pilot lights mounted on the door for each alarm/shutdown condition.
20. Motor and bypass contactors and power unit isolation circuit breaker or contactor as shown on the Drawings or described in the Specifications. Contactors shall be NEMA integral size. Half sizes and IEC rated contactors shall not be acceptable.
NEMA dual rated contactors shall not be acceptable.
21. Wetted contacts for remote indication of "RUNNING", “In Remote Mode”, VFD Fault and all other alarm conditions, as required by the Drawings.
22. Fault reset button on door if fault reset feature is not available from the programmable control module.
B. The drive units shall be able to withstand phase-to-phase and phase-to-ground shorts without damage to the drive unit.
C. The drive shall include the solid-state features described above on plug-in circuit boards with microprocessor and on-board diagnostic circuitry with LED readouts as listed above.
D. The drive shall have integral transformers to supply all required control voltages including space heaters, where required. The control transformer and entire drive unit shall be deenergized when the line disconnect switch or circuit breaker is opened.
E. Fault trip conditions, except short time or momentary line voltage loss or line voltage momentary dip, shall lock out the control. Resetting of control after fault trip shall be manual by a door-mounted pushbutton.
F. Auto restart shall be a standard feature of the drive as follows:
1. Auto restart shall be enabled or disabled by programming or jumper selection.
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2. On auto restart selection, the microprocessor shall determine, in the event of a fault, if a restart should be attempted. A restart shall be attempted under the following conditions:
a. Undervoltage (UP): Every time as soon as voltage returns to a safe level.
Fault relay shall not be activated.
b. Input Overvoltage (OPS): Every time as soon as voltage returns to a safe level. Fault relay shall be activated for the duration of the high voltage condition.
c. Overcurrent (OC): Five attempts in 30 seconds. After the fifth OC, the drive shall trip out and latch the fault relay.
G. A restart shall not be attempted for any other type of fault and the drive shall trip out immediately, activate the fault relay, and make the information available on the programmable control module display until the drive is manually reset.
H. An undervoltage condition of less than 30 ms duration shall not affect drive operation. If main power falls below 85 percent of rated voltage for longer than 30 ms while control power is retained, the drive shall forcibly decelerate the load in an attempt to force a higher bus voltage through regeneration to allow the drive to "ride through" the undervoltage condition for up to 70 additional milliseconds for a total "ride through" of up to 100 ms for very high inertia loads. The manufacturer shall provide an option that allows control power to be maintained for 100 ms in the event of a power failure. If the drive drops out, it shall automatically restart upon restoration of full rated voltage, as previously described.
2.10 FACTORY TESTS
A. The testing procedure shall be the manufacturer's standard procedure to assure maintenance free service. The OWNER shall be given 14 days notice prior to start of factory testing so that the OWNER, at his option, may witness the testing.
1. All final assemblies shall be tested at full load with application of line-to-line and line-to-ground bolted faults. The VFD shall trip electronically without device failure.
2. After all tests have been performed; each VFD shall undergo a 40-hour burn-in test. The VFD's shall be burned in at 100 percent inductive or motor load for 40 hours without an unscheduled shutdown.
3. After the burn-in cycle is complete, each VFD shall be put through a 30-minute cycling motor load test before inspection and shipping.
4. Certification that all of the testing above has been performed shall be provided by the VFD manufacture, upon request.
B. All equipment, devices, instrumentation, and personnel required to perform the tests shall be supplied by the manufacturer. Upon satisfactory completion of the test, the manufacturer shall submit two certified copies of the test report to the ENGINEER.
Component failure during testing will require repeating any test associated with the failure or modified components to demonstrate proper operation.
2.11 PAINTING
A. Units shall receive manufacturer's standard finish paint system prior to shipment.
B. Machined, polished, and non-ferrous surfaces shall be coated with corrosion prevention compound.
C. Painting shall conform to the requirements of Section 09960.
D. All internally electronic components, devices terminations and other items shall be coated with an epoxy based conformal coating system.
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PART 3 - EXECUTION
3.01 START-UP AND TEST
A. Make adjustments required to place system in proper operating condition.
B. A manufacturer's representative shall check and approve the installation before operation.
He shall test operate the system in the presence of the ENGINEER and verify that the units conform to requirements. He shall revisit the jobsite as often as necessary until all trouble is corrected and the installation is entirely satisfactory.
3.02 MANUFACTURER'S SERVICES
A. A factory trained representative shall be provided for installation supervision, start-up and test services and operation and maintenance personnel training services. The representative shall make a minimum of two (2) visits, minimum four (4) hours on-site for each visit, to the site. The first visit shall be for assistance in the installation of equipment.
The second visit shall be for checking the completed installation and start-up of the system.
Manufacturer's representative shall test operate the system in the presence of the ENGINEER and verify that the variable frequency drives conform to requirements.
Representative shall revisit the job site as often as necessary until all trouble is corrected and the installation is entirely satisfactory.
B. All costs, including travel, lodging, meals and incidentals, shall be considered as included in CONTRACTOR’S bid price.
END OF SECTION
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West Yost – March 2023 16940 - 1 City of Ukiah
592-50-22-14 Instrumentation Thickening and Dewatering
Improvements
SECTION 16940
INSTRUMENTATION
PART 1 - GENERAL
1.01 SCOPE OF WORK
A. The major components in the instrumentation scope of work are:
1. Furnish, configure, test, commission, and warrant instrumentation as shown in the P&IDs, and/or plans.
2. Include necessary piping, valves, pressure reducers, mounting brackets or flanges, supports, and anchors to complete installation.
3. Provide sunshades for instrumentation for all instruments that are exposed to direct sunlight.
B. System Integrator selection of instrumentation shall be per manufacturer’s recommendation for the application and per specifications.
1. If a manufacturer’s recommendation or installation instructions are inconsistent with the Contract installation details or specifications, then the Contractor shall submit an RFI describing the inconsistency.
2. If the inconsistency is due to substitution from the first named equipment, then the responsibility of coordination and any additional cost shall be borne by the Contractor.
C. Provide all devices, valves, tubing, fittings, wiring, terminal blocks, calibration consumables, initial calibration equipment, accessories, sunshades and enclosures as specified herein and as shown on Contract Drawings.
D. Furnish all tools, calibration equipment, calibration materials, specialized parts and incidentals necessary to integrate the instrument to the application.
E. Furnish labor for installation, verification, start-up, calibration, testing and commissioning.
Contractor shall prove proper function of instrument prior project completion.
1.02 SUBMITTALS AND DRAWINGS
A. Submit shop documents and drawings for approval in accordance with this subsection and as specified.
B. Submit Operating Instructions (O&M Manuals) for each instrumentation device prior to equipment installation.
1.03 OPERATING AND MAINTENANCE INFORMATION
A. Provide operating instructions as specified.
PART 2 - PRODUCTS
2.01 QUALITY
A. All equipment shall be designed and constructed so that in the event of a power interruption, the equipment specified hereunder shall resume normal operation without requiring a manual reset.
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B. Signal transmission from remote or field electric and electronic devices shall be 4-20 mA, sourced by a 24 VDC supply internal to the instrument or from a 24 VDC power supply located within the panel that is to receive the signal. Nonstandard transmission methods such as impulse duration, pulse rate, and voltage regulated will not be permitted except where specifically noted.
C. Transmitters or devices located in Class 1, Division 1 or 2 hazardous areas shall be rated for hazardous location installations per NEC and UL. Explosion proof enclosures and raceways or current/spark limiting devices located inside or outside of the classified area shall be furnished to comply with code requirements.
D. Outputs of equipment that are not of the standard signals as outlined, shall have the output immediately converted to 4-20 mA signals for remote transmission.
2.02 INSTRUMENT IDENTIFICATION
A. All major instrumentation and equipment items or systems specified in this Division and/or on the P&IDs are identified by tag numbers. Tag field equipment with assigned instrumentation tag number and functional description.
1. Tags shall be 1/2” stainless steel DYMO impressed tape with 3/16”(minimum) height characters.
2. Metal tape embosser shall feature a built in hole punching device and scissor cutoff tool.
B. Attach tags to equipment with a 4” long, 20-gage stainless steel wire leash for small devices, or two stainless steel screws for larger instruments; however, such permanent attachment shall not be on an ordinarily replaceable part or in an area that will be subject to unintended overuse fatigue. Make the tag plainly visible.
2.03 FLOW COMPONENTS
A. Magnetic Flow Meter
1. The magnetic flow meter shall consist of a flow tube FE and a converter FIT, complete with interconnecting cables.
2. The magnetic flow meter shall be of the low frequency electromagnetic induction type and shall produce a DC pulse signal directly proportional and linear to the flow rate, with the duration not less than 100 milliseconds. Complete zero stability shall be an inherent characteristic of the metering system. Meters requiring field zero adjustment will not be acceptable. The meter accuracy shall not be affected by changes in fluid pressure, temperature, viscosity, or conductivity.
3. Accuracy
a. The maximum error of the complete metering system including flow element and flow indicating transmitter shall be 0.30% of actual flow rate (in specified units) and readout over the range of full scale velocity settings from 1 to 30 feet per second. Variations in temperature, voltage, and frequency within the ranges listed herein shall not affect the overall measuring accuracy.
b. The flow meter shall not require more than three diameters of straight pipe length from the center of the meter to upstream or downstream obstructions to obtain specified accuracies.
4. Flow Element (FE)
a. The flow element shall be based on a pipe spool with ANSI class 150 flange connections or be flangeless construction as required by mechanical drawings. Class 300 flanges shall be provided where shown
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or when the pressure and temperature of the process fluid exceeds the rating of a 150 lb flange. The flow element size shall be as shown in the mechanical drawings and listed in the Instrumentation Schedule. Flange type and bolt pattern shall be coordinated with the mechanical Contractor prior to submittal.
b. The flow element shall have Hastelloy C4 coil and grounding electrodes. c. Stainless steel grounding rings shall be provided at both ends of the flow element for all flowmeter applications. Grounding rings shall be manufactured from stainless steel, 2 mm thickness with grounding tab for electrical wire connection, and fit within the flange bolt circle. Grounding ring shall be self centering within pipe.
d. The flow element internal liner material shall be Teflon, polyurethane or hard rubber, unless recommended otherwise by the manufacturer for the application and approved.
e. NEMA rating as defined in the Instrumentation Schedule.
5. Flow Indicating Transmitter (FIT)
a. The electronic flow indicating transmitter shall either be integral or mounted remotely from flow tube as shown on Project Drawings. b. The electronic transmitter shall be provided in a NEMA rated enclosure. c. The transmitter shall be interchangeable with all sizes of flow elements and shall be field replaceable (without replacing flow element) in the event of transmitter failure.
d. The transmitter shall be microprocessor controlled, utilizing digital signal processing with automatic zero correction to provide a linear 4-20 mA signal proportional to flow rate.
e. The transmitter shall incorporate a high impedance amplifier of 100,000 Megohms or greater, eliminating the need for electrode cleaning systems. f. The transmitter shall contain a self test mode to allow the operator to manually simulate the output 4-20 mA signal to any value between 0% and 100% to check out any driven devices in the loop.
g. Rate indicator and totalizer: An alphanumeric LCD backlit display shall be provided to continuously display the flowrate and totalizer with units and all programming functions.
h. All programming configuration of the flowmeter shall be completed through the transmitter’s pushbutton interface. A communication device shall not be necessary to configure the flow transmitter.
i. PC based software shall be available and included for configuration and troubleshooting. Connection to flowmeter shall be via computer USB port and include interface cables as required.
j. The transmitter shall be designed for operation from a power source of 120 volts AC, with a power consumption of less than 20 watts. The flow element shall be powered from the transmitter.
k. The transmitter shall operate continuously without fault in an ambient temperature range from 14 to 140 °F. The flowmeter shall be suitable for operation in direct sunlight without the use of a sunshade. If a sunshade becomes required after installation for any operational reason, one shall be furnished and installed free of charge.
l. The following configurable parameters shall be provided at a minimum:
1) Field adjustable flow signal dampening.
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2) Low flow cutoff (forces zero flow signal) between 0.0-5.0% of full scale rate.
3) Empty pipe detection (forces zero flow signal) if the pipe is not full.
4) Selection for forward/reverse/both flow directions.
6. Flow Indicating Transmitter (FIT) I/O Interface
a. Flow Signal: 4-20 mA signal proportional to the flow. The signal shall be field configurable for the flow calibration specified and others within the flow tube accuracy range. The flow signal shall be capable of measurement for forward and reverse flows combined by offsetting zero to mid scale (12 mA).
b. Flow Totalization Pulse: The Flowmeter shall feature a pulse output that is scaled to 1000 gallons per pulse unless otherwise shown. 1) Provide solid state interfacing relay within control panel (as required) between flow meter voltage output and PLC
discrete voltage input. Provide any necessary interfacing devices to make flow meter pulse duration and output rate compatible with PLC discrete pulse input rate.
c. Meter Positive Zero Return: This contact input shall force the flow reading and output flow signal to zero flow.
d. Flow direction digital output: Open collector transistor or relay output capable of driving 24 volt interface relay up to 100 mA. Output shall be configurable for either forward or reverse flow directions.
7. If the flow indicating transmitter (FIT) is shown in the Contract drawings to be mounted remotely from the flow element (FE), the manufacturer shall provide all cabling between flow element and flow indicating transmitter.
8. All mounting hardware and/or devices necessary to complete the installation shall be provided by the manufacturer at no additional cost to the Owner.
9. The meter shall be hydraulically calibrated at a facility located in the United States and the calibration shall be traceable to the National Bureau of Standards. A certified copy of the calibration test results shall be submitted to the Owner prior to shipment of the meter.
10. The magnetic flowmeter shall be Endress and Hauser Proline Promag L400, Krohne Enviromag 2100, Rosemount 8705, or approved equal.
2.04 INSTRUMENTATION SUN PROTECTION
A. Instrument Sunshade
1. Provide wall mount bracket or pole mounted sunshade where instruments are exposed to direct sunlight.
2. Sunshades shall be fabricated from stainless steel with hinged rubber flap on front for viewing of displays and performing calibrations.
3. Sunshade shall be custom manufactured for the instrument protected and sized such that there is 3” free space around sides and front of instrument.
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PART 3 - EXECUTION
3.01 WORKMANSHIP
A. The Contractor shall employ personnel who are skilled and experienced in the installation and connection of equipment defined in this Section.
B. Verify that all equipment and materials fit properly.
C. All instrumentation configuration, programming and calibration shall be completed prior to the start of field tests.
D. Equipment without approved submittals shall not be installed.
E. All equipment shall be properly stored indoors while awaiting installation. Protect installed equipment from construction debris or mishaps. The Contractor will replace any equipment that is not in new condition at the time of installation and/or start-up.
F. Perform work to remedy non-compliant installations after inspection.
3.02 INSTALLATION
A. Install and supply all products necessary to provide an operational instrumentation system.
This shall include the following:
1. Contract Drawings are intended to show the basic functional requirements of the instrumentation system. Insufficient detail does not relieve the Contractor from the responsibility to provide a complete and functioning system. If additional detail or clarification is required, the Contractor shall request such information prior to installation.
2. Provide relays, signal converters, isolators, boosters, power conditioners, circuit cards, and other miscellaneous devices as required for the compatible and functional interface.
3. Provide analog loop isolators where required to eliminate "ground loops."
4. The instrumentation and accessory equipment shall be installed in accordance with the manufacturer's instructions and located as shown on the Drawings or as approved. When manufacturer's installation literature specifies a particular location or orientation in a process line due to measurement accuracy considerations, the installation shall be in conformance with the manufacturer's instructions.
B. Instrument installation methods.
1. Install instruments at the location shown on the Plans or approved. Instruments enclosures shall be NEMA rated for the installed location.
2. Install level and plumb.
3. All instruments shall be provided with floor stands or wall brackets as shown in installation details or as required for functional installation.
4. Mounting stands shall be custom manufactured of aluminum channel with base plate unless otherwise noted in installation detail.
5. Mounting channels (unistrut), and spacers shall be galvanized steel above ground outdoors and stainless steel below ground (wetwell), unless otherwise noted in installation details.
6. All screws, bolts and anchors shall be stainless steel.
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C. Wiring and raceway installation methods.
1. Terminal blocks shall be provided at all instrument cable junctions and all wires shall be identified at such junctions.
2. Instrumentation wiring shall be run without splices between instruments, terminal boxes, or panels.
D. Wiring, grounding, and shielding methods.
1. The following practices shall be observed unless modified by manufacturer's standards:
2. Each electronic equipment chassis shall be grounded to power ground.
3. Shielded twisted pair, shielded triad, or manufacturer supplied cables only shall be used for analog signals and communications signals.
4. Drain wire of shielded cables used for analog inputs to the PLC shall be connected at the PLC unit only. Shield shall be isolated from ground at all other termination points including transmitters.
5. Drain wire of shielded cables used for analog outputs from the PLC shall be connected at signal receiving device only. Shield shall be isolated from ground at all other termination points.
6. If electrical interference noise is imposed on DC status and alarm signals, then they shall be re-routed or wire changed to shielded twisted pair cables.
7. Each shield drain wire which is not connected to ground shall be cut off covered with a heat shrink insulating boot at cable jacket end. Shields shall be connected together at each transition from one cable to another for an effectively continuous shield circuit.
3.03 SUPPLIER SERVICES
A. The Contractor shall be responsible for each supplier of equipment to provide the following minimum services for each type of instrument supplied. Each supplier shall provide a qualified instrumentation field technician to perform services listed herein. Contractor shall supply all calibration materials necessary to commission unit and shall not use any consumable materials that are intended to be furnished for the first period of use.
1. Advise and instruct Contractor on proper installation requirements.
2. Inspect, calibrate, test, and place equipment in operation. Calibrate instruments to values as shown in the instrument index or as noted herein. If instrument spans are required to change (within instrument range) during startup for process reasons, the Contractor shall change them as directed by the Engineer.
3. Programmable devices shall be programmed and tested prior to startup.
Programming shall be adjusted or changed as directed by the Engineer at any time prior to final acceptance.
4. Perform testing in the presence of Engineer.
5. Visit the project site as often as required and spend as much time as necessary to ensure accurate and operational instrumentation.
6. Provide training as specified in 3.04 – FIELD ASSISTANCE.
B. The Contractor shall coordinate with each supplier of instrumentation to confirm that primary elements are provided in a timely manner, meeting critical path scheduling. The Contractor shall coordinate process connection size, equipment size, and material type when applicable and oversee the installation, calibration, and acceptance testing.
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3.04 FIELD ASSISTANCE
A. The instrument supplier shall provide a minimum of one (1) hour of field training to instruct Owner personnel in the use, operation, calibration, programming, and maintenance on each type of "field" instrument listed in Instrumentation Schedule.
3.05 SPARE PARTS
A. Contractor shall supply all calibration materials necessary to commission unit and shall not use any consumable materials that are intended to be handed over to the Owner as defined in the instrument specifications.
END OF SECTION
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SECTION 17401
PROCESS CONTROL SYSTEM GENERAL PROVISIONS
PART 1 - GENERAL
1.01 SCOPE
A. This section specifies general requirements applicable to Division 17 Sections of these project specifications for the process control, instrumentation, communication, network, software, and signal systems. This work will be referenced as the Process Control System (PCS).
B. System Overview. Detailed requirements are in individual related specification sections.
1. Field Instrumentation:
a. New field instruments.
2. Process Control Hardware:
a. New PLC75001 mounting panel including:
1) Programmable Logic Controller (PLC).
2) Network Switch.
3) Panel appurtenances.
3. Process Control Software, Programming, and Integration:
a. CONTRACTOR shall retain the services of the Owner’s preferred integrator/programmer. Contact Jack Miller, JM Integration LLC, 888-536- 8623.
4. Communications and Networking:
a. Fiber optic network backbone is existing. Extend fiber jumper to ethernet switch in PLC75001; copper Ethernet communications to PLC hardware.
C. CONTRACTOR shall provide all labor, materials, equipment, and incidentals as shown, specified, and required to furnish, install, calibrate, test, start-up and place in satisfactory operation a complete PCS.
D. The process instrumentation and control Work includes, but is not limited to, the following:
1. Field-mounted instruments and devices. Refer to Section 16940, Instrumentation.
2. Panel-mounted instruments and devices.
3. Uninterruptible power supply.
4. Panel environmental controls.
5. Local area network communication hardware and software required for interfacing various systems to provide a fully integrated system.
6. All startup, testing, training, and coordination.
7. Submittal development and updates.
E. PCS shall monitor, store, display, and log process and equipment operating information; perform various process control functions, manually and automatically; and generate various reports. Refer to Section 17491, for process control functions.
F. The Contract Documents describe the required PCS and PCS functions and operational requirements.
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G. Coordination:
1. Process Controls:
a. Providing instruments and controls are part of the Work by CONTRACTOR’s instrumentation and controls (I&C) Subcontractor. All startup and testing shall be coordinated with the OWNER. b. Some panels and equipment are furnished under other Specification Sections of this Contract. Coordinate with Suppliers of these panels and equipment to provide fully functional system in accordance with the Contract Documents that interfaces with existing central computer system. c. Computer system input/output list identifies inputs and outputs required and is part of the Contract Documents. Input/output list is for coordinating signals between equipment provided by other Suppliers and PCS Supplier and identifying signals to be programmed by CONTRACTOR’s configuration Subcontractor.
d. For existing PLC cabinet PLC70299, added inputs and outputs (I/O) can be obtained from the P&ID. No new I/O modules need to be installed in PLC70299. Added I/O will be landed on spare I/O points. e. For existing PLC cabinet PLC12199, added analog inputs and outputs (I/O) will be landed on spare I/O points. Discrete I/O for the washwater pumps will be reused.
1) Washwater Pond 1 Pump 1 Speed Feedback – Rack 3, Slot 13, Channel 3
2) Washwater Pond 1 Pump 2 Speed Feedback – Rack 3, Slot 13, Channel 4
3) Washwater Pond 2 Pump 1 Speed Feedback – Rack 3, Slot 13, Channel 5
4) Washwater Pond 2 Pump 2 Speed Feedback – Rack 3, Slot 13, Channel 6
5) Washwater Pond 1 Pump 1 Speed Control – Rack 3, Slot 16, Channel 0
6) Washwater Pond 1 Pump 2 Speed Control – Rack 3, Slot 16, Channel 1
7) Washwater Pond 2 Pump 1 Speed Control – Rack 3, Slot 16, Channel 2
8) Washwater Pond 2 Pump 2 Speed Control – Rack 3, Slot 16, Channel 3
f. For existing PLC cabinet PLC31299, added analog inputs and outputs (I/O) will be landed on spare I/O points. Discrete I/O for the primary scum pumps will be reused.
1) Primary Scum Pump 1 Speed Feedback – Rack 1, Slot 5, Channel 0 2) Primary Scum Pump 2 Speed Feedback – Rack 1, Slot 5, Channel 1 3) Primary Scum Pump 3 Speed Feedback – Rack 1, Slot 5, Channel 2 4) Primary Scum Pump 4 Speed Feedback – Rack 1, Slot 5, Channel 3 5) Primary Scum Pump 1 Speed Control – Rack 1, Slot 13, Channel 0
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6) Primary Scum Pump 2 Speed Control – Rack 1, Slot 13, Channel 1 7) Primary Scum Pump 3 Speed Control – Rack 1, Slot 13, Channel 2 8) Primary Scum Pump 4 Speed Control – Rack 1, Slot 13, Channel 3 2. With CONTRACTOR, Supplier shall assume the responsibility for adequacy and performance of materials and equipment provided under this Section.
3. To the greatest extent possible, provide I&C materials and equipment from a single manufacturer.
4. PCS Supplier’s Responsibilities:
a. Preparing all process control equipment submittals in accordance with the Contract Documents.
b. Proper interfacing of instrumentation and control equipment with field equipment, instruments, devices, panels, and required interfacing with the Site’s electrical system.
c. Review and coordination with manufacturers, other Suppliers, and other contracts of Shop Drawings and other CONTRACTOR submittals for equipment, valves, piping, and appurtenances for ensuring proper interfacing of hardware, and locations and installation requirements of inline devices and instrument taps.
d. Direct, detailed oversight of installation of instruments, panels, consoles, cabinets, wiring and other components, related wiring and piping connections, and PCS programming and configuration.
e. Calibrating, source quality control, field quality control, and start-up of the system.
f. Responsibility for correction period obligations for the PCS. g. Training operations and maintenance personnel in operation and maintenance (including calibration and troubleshooting) of the PCS.
1.02 REFERENCED SECTIONS
A. The following Sections are referenced in this Section
1. Section 01782 – Operation and Maintenance Information.
2. Section 16940 – Instruments.
3. Section 17403 – Process Control System Start-up and Field Testing.
4. Section 17491 – Process Control Descriptions.
1.03 REFERENCES
A. Abbreviations:
1. AI: Analog Input
2. AO: Analog Output
3. dBm: decibel-milliwatts
4. DI: Digital Input
5. DO: Digital Output
6. CPU: Central Processing Unit
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7. ESW: Network Ethernet Switch
8. HMI: Human Machine Interface
9. OIT: Operator Interface Terminal (usually referring to a panel-mounted touchscreen device)
10. PLC: Programmable Logic Controller
11. PCS: Process Control System
12. RTU: Remote Terminal Unit
13. SCADA: Supervisory Control and Data Acquisition
14. SI: Systems Integrator
B. Definitions:
1. General: Definitions of terminology related to Instrumentation and Industrial Electronic Systems used in the specifications as defined in IEEE 100, ISA S51.1, and NEMA ICS 1.
2. Data sheets: Data sheets refer to ISA S20 or ISA TR20.00.01, as referenced within ISA-20-1981 specification.
3. Two-wire transmitter: A transducer that derives operating power supply from the signal transmission circuit and requires no separate power supply connections. A two-wire transmitter produces a 4- to 20-milliampere current regulated signal in a series circuit with a 24-volt direct current (VDC) driving potential and a maximum circuit resistance of 600 ohms.
4. Four-wire transmitter: A transducer that derives operating power from separate power supply connections. A four-wire transmitter produces a 4- to 20-milliampere current regulated signal in a series circuit with a maximum circuit resistance of 600 ohms. Four-wire transmitters typically require 120-volt alternating current (VAC) or 24VDC input power supply.
5. Galvanic isolation: An electrical node having no direct current path to another electrical node. Galvanic isolation refers to a device with electrical inputs and/or outputs that are isolated from ground, the device case, the process fluid, and separate power supply terminals. Inputs and/or outputs may be externally grounded without affecting the characteristics of the devices or providing a path for circulation of ground currents.
6. Panel: An instrument support system that may be a flat surface, partial enclosure, or complete enclosure for instruments and other devices used in process control systems including consoles, cabinets, and racks. Panels provide mechanical protection, electrical isolation, and environmental protection from dust, dirt, moisture, and chemical contaminants that may be present in the atmosphere.
7. Systems Integrator: A firm engaged in the business of detailed control system design and engineering, instrumentation component purchase, system and panel assembly, control device programming, and implementing of the specified process control and industrial automation systems.
8. Signal Types:
a. Analog, low level: Signal with full output level of 100 millivolts or less including thermocouples and resistance temperature detectors. b. Analog, high level: Signals with full output level greater than 100 millivolts but less than 30 volts, including 4 to 20 mA transmission.
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c. Audio signals, high level: Audio signals exceeding plus 4 dBm, including loudspeaker circuits.
d. Digital code: Coded information from the output of an analog-to-digital converter or digital transmission terminal.
e. Discrete control or events: Dry contact closures and signals monitored by solid-state equipment, relays, or control circuits.
f. Discrete control or events, low voltage: Dry contact closures and signals monitored by solid-state equipment, relays, or control circuits operating at less than 30 volts and 250 milliamperes.
g. Modulated signals: Signals from modems or low-level audio signals.
Normal signal level: plus 4 dBm to minus 22 dBm. Frequency range is 300 to 10,000 hertz.
h. Pulse frequency: Counting pulses emitted from speed or flow transmitters. i. Radio frequency (RF) signals: Continuous wave alternating current signals with fundamental frequency greater in a range of 310 kilohertz to 300 gigahertz.
9. Drawing Types:
a. Elementary or schematic diagram:
1) Use graphic symbols to indicate the electrical connections and functions of a specific circuit arrangement. The schematic diagram facilitates tracing of the circuit and its functions without regard to the actual physical size, shape, or location of the component devices or parts.
2) Indicate connections to internal and external components connected to the panel. Note which devices are external to the panel.
3) Depicted in ladder logic format.
4) Indicates contact arrangement of internal and external devices such that circuits are complete and match equipment furnished. 5) Indicates equipment designations/tag numbers to match contract drawings and P&IDs.
b. Block diagram:
1) A diagram of a system, instrument, computer, or program in which selected portions are represented by annotated boxes and interconnecting lines.
c. Network block diagram: (Not Applicable)
d. Connection Diagram:
1) Purpose is to show wiring requirements between internal panel components.
2) Show components of a control panel in an arrangement similar to the actual panel layout.
3) Indicate internal wiring between components.
4) Show terminal blocks used for internal wiring and field wiring, with identification as such.
5) Indicate insulation color code, signal polarities, wire numbers, and terminal block numbers.
e. Interconnection Diagram:
1) Purpose is to show wiring requirements between panels, standalone devices, components, and instruments.