Mechanical Equipment Testing
15958-4 8660F10 April 2023
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/15958 (BidSetFinal) b. The first lateral and torsional critical speed of all constant, variable, and 2-speed driven equipment that is considered flexible or flexibly mounted such as vertical pumps (vertical in-line and vertical non-clog pumps excluded) and fans shall at least 25 percent below the equipment’s lowest operating speed.
c. The second lateral and torsional critical speed of all constant, variable, and 2-speed equipment that is considered flexible or flexibly mounted shall be at least 25 percent above the maximum operating speed.
E. Vibration tests:
1. Definitions:
a. Root mean square: for pumps operating at speeds greater than 600 rpm, the vibration measurement shall be measured as the overall velocity in inches per second root mean square (RMS).
b. Peak-to-peak displacement: The root means squared average of the peak-to-peak displacement multiplied by the square root of 2. c. Peak velocity: The root mean squared average of the peak velocity multiplied by the square root of 2.
d. Peak acceleration: The root mean squared average of the peak acceleration multiplied by the square root of 2.
e. High frequency enveloping: A process to extract very low amplitude time domain signals associated with impact or impulse events such as bearing or gear tooth defects and display them in a frequency spectrum of acceleration versus frequency.
1) Manufacturers: One of the following or equal:
a) Rockwell Automation, Entek Group, "Spike Energy" analysis. b) CSI, "PeakVue."
f. Rotor bar pass frequency (RBF), for detecting loose rotor bars. g. Low speed equipment: Equipment or components of equipment rotating at less than 600 revolutions per minute.
h. High speed equipment: Equipment and equipment components operating at or above 600 revolutions per minute.
i. Preferred operating range: Manufacturer’s defined preferred operating range (POR) for the equipment.
j. Allowable operating range: Manufacturer’s defined allowable operating range (AOR) for the equipment.
2. Vibration instrumentation requirements:
a. Analyzers: Use digital type analyzers or data collectors with anti-aliasing filter, 12-bit A/D converter, fast fourier transform circuitry, phase measurement capability, time wave form data storage, high-frequency enveloping capabilities, 35 frequency ranges from 21 to 1,500,000 cycles per minute, adjustable fast fourier transform resolution from 400 to 6,400 lines, storage for up to one hundred 3,200 line frequency spectra, data output port, circuitry for integration of acceleration data to velocity or double integration to displacement.
1) Manufacturers: One of the following or equal:
a) Computational Systems Inc., (CSI) Division of Emerson Process Management, Model 2120A, Data Collector/analyzer with
applicable analysis software.
b) Pruftechnik, VIBXPERT II.
Mechanical Equipment Testing
15958-5 8660F10 April 2023
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/15958 (BidSetFinal) b. Analyzer settings:
1) Units: English, inches/second, mils, and gravitational forces. 2) Fast fourier transform lines: Most equipment 1,600 minimum; for motors, enough lines as required to distinguish motor current frequencies from rotational frequencies, use 3,200 lines for motors with a nominal speed of 3,600 revolutions per minute; 3,200 lines minimum for High Frequency Enveloping; 1,600 lines minimum for low speed equipment.
3) Sample averages: 4 minimum.
4) Maximum frequency (Fmax): 40 times rotational frequency for rolling element bearings, 10 times rotational frequency for sleeve bearings. 5) Amplitude range: Auto select but full scale not more than twice the acceptance criteria or the highest peak, whichever is lower. 6) Fast fourier transform windowing: Hanning Window.
7) High pass filter: Minus 3 dB at 120 cycles per minute for high speed equipment. Minus 3 dB at 21 cycles per minute for low speed equipment.
c. Accelerometers:
1) For low speed equipment: Low frequency, shear mode
accelerometer, 500 millivolts per gravitational force sensitivity, 10 gravitational force range, plus/minus 5 percent frequency response from 0.5 hertz to 850 hertz, magnetic mount.
a) Manufacturers: One of the following or equal:
(1) Wilcoxon Research, Model 797L.
(2) PCB, Model 393C.
2) For high speed equipment: General purpose accelerometer, 100 millivolts per gravitational force sensitivity, 50 gravitational force range, plus/minus 3dB frequency response range from 2 hertz to 12,000 hertz when stud mounted, with magnetic mount holder. a) Manufacturers: One of the following or equal:
(1) Wilcoxon Research, Model 793.
(2) Entek-IRD Model 943.
3. Accelerometer mounting:
a. Use magnetic mounting or stud mounting.
b. Mount on bearing housing in location with best available direct path to bearing and shaft vibration.
c. Remove paint and mount transducer on flat metal surface or epoxy mount for High Frequency Enveloping measurements.
4. Vibration acceptance criteria:
a. Testing of rotating mechanical equipment: Tests are to be performed by an experienced, factory trained, and independent authorized vibration analysis expert.
Mechanical Equipment Testing
15958-6 8660F10 April 2023
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/15958 (BidSetFinal) b. Vibration displacement limits: Unless otherwise specified, equipment operating at speeds 600 revolutions per minute or less is not to exhibit unfiltered readings in excess of following:
Operating Conditions and Application Data
Overall Peak-to-Peak Displacement
Field, mils Factory, mils
Operation within the POR 3.0 4.0
Operation within the AOR 4.0 5.0
Additive value when measurement location is
greater than 5 feet above foundation. 2.0 2.0
Additive value for solids-handling pumps 2.0 N/A
Additive value for slurry pumps 2.0 N/A
c. Vibration velocity limits: Unless otherwise specified, equipment operating at speeds greater than 600 revolutions per minute is not to exceed the following peak velocity limits:
HI Pump Type Horsepower
Field Test Factory Test
Overall RMS Overall RMS
Horizontal Solids
Handling Centrifugal
Pumps
Below 33 hp 0.25 0.28
Horizontal and Vertical
In-Line Centrifugal
Pumps (other than NonClog type)
Vertical Solids Handling
Centrifugal Pumps
Between 33 and
100 hp
0.28 0.31
100 hp and above 0.31 0.34
Below 33 hp 0.30 0.33
Vertical Turbine, Mixed
Flow, and Propeller
Pumps (solids-handling
type pumps)
Between 33 and
100 hp
0.32 0.35
100 hp and above 0.34 0.35
Non-Solids Handling
Centrifugal Pumps
HI Types BB1, BB2, BB3,
BB4, BB5, OH1, OH2,
OH3, OH4, OH5, and
OH7
Below 268 hp 0.15 0.19
268 hp and above 0.19 0.22
Vertical Turbine, Mixed
Flow, and Propeller
Pumps HI Types VS1,
VS2, VS3, VS4, VS5,
VS6, VS7, and VS8
Below 268 hp 0.13
268 hp and above 0.17
Slurry Pumps 0.25 0.30
Mechanical Equipment Testing
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pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/15958 (BidSetFinal) HI Pump Type Horsepower
Field Test Factory Test
Overall RMS Overall RMS
Motors See Applicable
Motor Specification
See Applicable
Motor Specification
Gear Reducers, Radial Not to exceed
AGMA 6000-B96
limits
Not to exceed
AGMA 6000-B96
limits
Other Reducers, Axial 0.1 N/A
d. Equipment operation: Measurements are to be obtained with equipment installed and operating within capacity ranges specified and without duplicate equipment running.
e. Additional criteria:
1) No narrow band spectral vibration amplitude components, whether sub-rotational, higher harmonic, or synchronous multiple of running speed, are to exceed 40 percent of synchronous vibration amplitude component without manufacturer's detailed verification of origin and ultimate effect of such excitation.
2) The presence of discernable vibration amplitude peaks in Test Level 2 or 3 vibration spectra at bearing inner or outer race frequencies shall be cause for rejection of the equipment.
3) For motors, the following shall be cause for rejection:
a) Stator eccentricity evidenced by a spectral peak at 2 times electrical line frequency that is more than 40 percent of the peak at rotational frequency.
b) Rotor eccentricity evidenced by a spectral peak at 2 times electrical line frequency with spectra side bands at the pole pass frequency around the 2 times line frequency peak.
c) Other rotor problems evidenced by pole pass frequency side bands around operating speed harmonic peaks or 2 times line frequency side bands around rotor bar pass frequency or around 2 times the rotor bar pass frequency.
d) Phasing problems evidenced by 1/3 line frequency side band spectral peaks around the 2 times electrical line frequency peak. 4) The presence of peaks in a High Frequency Enveloping spectra plot corresponding to bearing, gear or motor rotor bar frequencies or harmonics of these frequencies shall be cause for rejection of the equipment; since inadequate lubrication of some equipment may be a cause of these peaks, lubrication shall be checked, corrected as necessary and the high frequency envelope analysis repeated.
5. Vibration testing results presentation:
a. Provide equipment drawing with location and orientation of measurement points indicated.
b. For each vibration measurement take and include appropriate data on equipment operating conditions at the time vibration data is taken; for pumps, compressors, and blowers record suction pressure, discharge pressure, and flow.
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pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/15958 (BidSetFinal) c. When Vibration Spectra Data required:
1) Plot peak vibration velocity versus frequency in cycles per minute. 2) Label plots showing actual shaft or part rotation frequency, bearing inner and outer race ball pass frequencies, gear mesh frequencies and relevant equipment excitation frequencies on the plot; label probable cause of vibration peaks whether in excess of specification limits or not.
3) Label plots with equipment identification and operating conditions such as tag number, capacity, pressure, driver horsepower, and point of vibration measurement.
4) Plot motor spectra on a log amplitude scale versus frequency. d. For low speed equipment, plot peak vibration displacement versus frequency as well as velocity versus frequency.
e. Provide name of manufacturer and model number of the vibration instrumentation used, including analyzer and accelerometer used together with mounting type.
3.08 TESTING LEVELS
A. Level 1 Tests:
1. Level 1 Performance Test:
a. General:
1) For equipment, operate, rotate, or otherwise functionally test for 15 minutes minimum after components reach normal operating temperatures.
2) Operate at rated design load conditions.
3) Confirm that equipment is properly assembled.
4) Confirm the equipment moves or rotates in the proper direction. 5) Confirm shafting, drive elements, and bearings are installed and lubricated in accordance with proper tolerances.
6) Confirm that no unusual power consumption, lubrication temperatures, bearing temperatures, or other conditions are observed.
b. Pumps:
1) Comply with general performance test requirements as specified in this Section.
2) Measure flow and head while operating at or near the rated condition; for factory testing, testing may be at reduced speeds with flow and head corresponding to the rated condition when adjusted for speed using the appropriate affinity laws.
a) Use of a test driver is permitted for factory tests when actual driver is given a separate test at its point of manufacture as specified in Section 16222 - Low Voltage Motors up to
500 Horsepower or the applicable equipment section.
b) Use actual driver for field tests.
3) Record measured flow, suction pressure, discharge pressure, and make observations on bearing temperatures and noise levels.
2. Level 1 Vibration Test:
a. Test requirement:
1) Measure filtered vibration spectra versus frequency in 3 perpendicular planes at each normally accessible bearing housing
Mechanical Equipment Testing
15958-9 8660F10 April 2023
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/15958 (BidSetFinal) on the driven equipment, any gears and on the driver; 1 plane of measurement to be parallel to the axis of rotation of the component. 2) Vibration spectra versus frequency shall be in accordance with Vibration Acceptance Criteria.
b. Equipment operating condition: Test at specified maximum speed.
3. Level 1 Noise Test:
a. Measure unfiltered overall A-weighted sound pressure level in dBA at 3 feet horizontally from the surface of the equipment and at a mid-point of the equipment height.
B. Level 2 Tests:
1. Level 2 Performance Test:
a. General:
1) For equipment, operate, rotate, or otherwise functionally test for at least 2 hours after components reach normal operating
temperatures.
2) Operate at rated design load conditions.
3) Confirm that equipment is properly assembled.
4) Confirm the equipment moves or rotates in the proper direction. 5) Confirm shafting, drive elements, and bearings are installed and lubricated in accordance with proper tolerances.
6) Confirm that no unusual power consumption, lubrication temperatures, bearing temperatures, or other conditions are observed.
b. Pumps:
1) Comply with general performance test requirements as specified in this Section.
2) Test 2 hours minimum for flow and head at the rated condition; for factory testing, testing may be at a reduced speeds with flow and head corresponding to the rated condition when adjusted for speed using the appropriate affinity laws.
a) Use of a test driver is permitted for factory tests when actual driver is given a separate test at its point of manufacture as specified in Section 16222 - Low Voltage Motors up to
500 Horsepower.
b) Use actual driver for field tests.
3) Test for flow and head at 2 additional conditions; 1 at 25 percent below the rated flow and 1 at 10 percent above the rated flow. 4) Record measured flow, suction pressure, discharge pressure, and observations on bearing temperatures and noise levels at each condition.
2. Level 2 Vibration Test:
a. Test requirement:
1) Measure filtered vibration spectra versus frequency and measure vibration phase in 3 perpendicular planes at each normally accessible bearing housing on the driven equipment, any gears and on the driver; 1 plane of measurement to be parallel to the axis of rotation of the component; measure actual rotational speeds for each
Mechanical Equipment Testing
15958-10 8660F10 April 2023
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/15958 (BidSetFinal) vibration spectra measured using photometric or other tachometer input connected directly to the vibration data collector. 2) Vibration spectra versus frequency shall be in accordance with Vibration Acceptance Criteria.
b. Equipment operating condition: Repeat test requirements at design specified maximum speed and at minimum speed for variable speed equipment.
c. Natural frequency test of field installed equipment:
1) Excite the installed equipment and support system in 3 perpendicular planes, use same planes as operating vibration measurement planes, and determine the as-installed natural resonant frequency of the driven equipment, the driver, gears, and supports.
2) Perform test at each bearing housing, at each support pedestal, and for pumps on the suction and discharge piping.
3) Perform with equipment and attached piping full of intended service or process fluid.
3. Level 2 Noise Test:
a. Measure filtered A-weighted overall sound pressure level in dBA for each of 8 octave band mid-points beginning at 63 hertz measured at 3 feet horizontally from the surface of the equipment at mid-point height of the noise source.
C. Level 3 Tests:
1. Level 3 Performance Tests:
a. General:
1) For equipment, operate, rotate, or otherwise functionally test for at least 4 hours after components reach normal operating
temperatures.
2) Operate at rated design load conditions for 1/2 the specified time; operate at each of any other specified conditions for a proportionate share of the remaining test time.
3) Confirm that equipment is properly assembled.
4) Confirm the equipment moves or rotates in the proper direction. 5) Confirm shafting, drive elements, and bearings are installed and lubricated in accordance with proper tolerances.
6) Confirm that no unusual power consumption, lubrication temperatures, bearing temperatures, or other conditions are observed.
7) Take appropriate capacity, power or fuel consumption, torque, revolutions per minute, pressure, and temperature readings using appropriate test instrumentation to confirm equipment meets specified performance requirements at the design rated condition. 8) Bearing temperatures: During maximum speed or capacity performance testing, measure and record the exterior surface temperature of each bearing versus time.
b. Pumps:
1) Comply with general performance test requirements as specified in this Section.
Mechanical Equipment Testing
15958-11 8660F10 April 2023
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/15958 (BidSetFinal) 2) Test 4 hours minimum for flow and head; begin tests at or near the rated condition; for factory and field-testing, test at full speed. a) Use of a test driver is permitted for factory tests when actual driver is given a separate test at its point of manufacture as specified in Section 16222 - Low Voltage Motors up to
500 Horsepower.
b) Use actual driver for field tests.
3) Test each specified flow and head condition at the rated speed and test at minimum as well as maximum specified speeds; operate at each test condition for a minimum of 15 minutes or longer as necessary to measure required performance, vibration, and noise data at each test condition.
4) Record measured shaft revolutions per minute, flow, suction pressure, discharge pressure; record measured bearing
temperatures (bearing housing exterior surface temperatures may be recorded when bearing temperature devices are not required by the equipment section) and record observations on noise levels. 5) Perform efficiency and/or Net Positive Suction Head Required (NPSHr) and/or priming time tests when specified in the equipment section in accordance with the appropriate HI standard and as follows:
a) Perform NPSHr testing at maximum rated design speed, head and flow with test fluids at ambient conditions; at maximum rated speed, test at 15 percent above rated design flow, and
25 percent below rated design flow.
b) Perform efficiency testing with test fluids at maximum rated speed.
c) Perform priming time testing with test fluids at maximum rated speed.
2. Level 3 Vibration Test:
a. Requirements: Same as Level 2 vibration test except data taken at each operating condition tested and with additional requirements below. b. Perform High Frequency Enveloping Analysis for gears and bearings. 1) Measure bearing element vibration directly on each bearing cap in a location close as possible to the bearing load zone that provides a smooth surface and direct path to the bearing to detect bearing defects.
2) Report results in units of acceleration versus frequency in cycles per minute.
c. Perform Time Wave Form analysis for gears, low speed equipment and reciprocating equipment; plot true peak amplitude velocity and displacement versus time and label the period between peaks with the likely cause of the periodic peaks (relate the period to a cause). d. Plot vibration spectra on 3 different plots; peak displacement versus frequency, peak acceleration versus frequency and peak velocity versus frequency.
3. Level 3 Noise Test: Measure filtered, un-weighted overall sound pressure level in dB at 3 feet horizontally from the surface of the equipment at mid-point height and at 4 locations approximately 90 degrees apart in plain view; report results for each of 8 octave band mid-points beginning at 63 hertz.
Mechanical Equipment Testing
15958-12 8660F10 April 2023
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/15958 (BidSetFinal) D. Level 4 Tests:
1. Level 4 Performance Test:
a. General:
1) For equipment, operate, rotate, or otherwise functionally test for at least 8 hours after components reach normal operating
temperatures.
2) Operate at rated design load conditions for 1/2 the specified time; operate at each of any other specified conditions for a proportionate share of the remaining test time.
3) Confirm that equipment is properly assembled.
4) Confirm the equipment moves or rotates in the proper direction. 5) Confirm shafting, drive elements, and bearings are installed and lubricated in accordance with proper tolerances.
6) Confirm that no unusual power consumption, lubrication temperatures, bearing temperatures, or other conditions are observed.
7) Take appropriate capacity, power or fuel consumption, torque, revolutions per minute, pressure and temperature readings, using appropriate test instrumentation to confirm equipment meets specified performance requirements at the design rated condition. 8) Bearing temperatures: During maximum speed or capacity testing, measure and record the exterior surface temperature of each bearing versus time.
b. Pumps:
1) Comply with general performance test requirements as specified in this Section.
2) Test 8 hours minimum for flow and head; begin tests at or near the rated condition; for factory and field-testing, test with furnished motor at full speed.
3) Test each specified flow and head condition at the rated speed and test at minimum as well as maximum specified speeds; operate at each test condition for a minimum of 20 minutes or longer as necessary to measure required performance, vibration, and noise data at each test condition.
4) Record measured shaft revolutions per minute, flow, suction pressure, discharge pressure; record measured bearing
temperatures (bearing housing exterior surface temperatures may be recorded when bearing temperature devices not required by the equipment section) and record observations on noise levels. 5) Bearing temperatures: During maximum speed or capacity testing, measure and record the exterior surface temperature of each bearing versus time.
6) Perform efficiency and/or Net Positive Suction Head Required (NPSHr) and/or priming time tests when specified in the equipment section in accordance with the appropriate HI standard and as follows:
a) Perform NPSHr testing at maximum rated design speed, head and flow with test fluids at ambient conditions; at maximum rated speed, test at 15 percent above rated design flow, and
25 percent below rated design flow.
Mechanical Equipment Testing
15958-13 8660F10 April 2023
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/15958 (BidSetFinal) b) Perform efficiency testing with test fluids at maximum rated speed.
c) Perform priming time testing with test fluids at maximum rated speed.
2. Level 4 Vibration Test: Same as Level 3 vibration test.
3. Level 4 Noise Test: Same as Level 3 Noise Test except with data taken at each operating condition tested.
END OF SECTION
Common Work Results for Electrical
16050-1 8660F10 April 2023
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/16050 (BidSetFinal) SECTION 16050
COMMON WORK RESULTS FOR ELECTRICAL
PART 1 GENERAL
1.01 SUMMARY
A. Section includes:
1. Requirements for electrical:
a. Basic design and performance criteria.
b. Prescriptive requirements for common components.
c. Installation.
B. Contract Drawings:
1. Plan drawings:
a. The Electrical Drawings show desired locations, arrangements, and components of the electrical work in a diagrammatic manner. b. Locations and sizes of equipment are approximate only.
2. Installation details:
a. The Contract Drawings include typical installation details the Contractor is to use to complete the Electrical Work. For cases where a typical detail does not apply, develop installation details that may be necessary for completing the Work, and submit these details for review by the Engineer. b. Not all typical installation details are referenced within the Drawing set.
Apply and use typical details where appropriate.
1.02 REFERENCES
A. National Electrical Manufacturers Association (NEMA):
1. 250 - Enclosures for Electrical Equipment (1000 V Maximum).
B. National Fire Protection Association (NFPA):
1. 70 - National Electrical Code (NEC).
C. Underwriters' Laboratories, Inc. (UL).
1.03 DEFINITIONS
A. FAT: Factory acceptance test that is also referred to as source test.
B. ICSC: Instrumentation and controls subcontractor.
C. LCP: Local control panel: Operator interface panel that may contain an HMI, pilot type control devices, operator interface devices, control relays, etc. and does not contain a PLC or RIO.
D. PCM: Process control module: An enclosure containing any of the following devices: PLC, RTU, or RIO.
Common Work Results for Electrical
16050-2 8660F10 April 2023
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/16050 (BidSetFinal) E. PCIS: Process control and instrumentation system:
1. RS-232: RS-232 is also known as TIA-232 or EIA-232, is a standard for serial communication transmission of data.
2. RS-485: RS-485 is also known as TIA-485 or EIA-485, is a standard defining the electrical characteristics of drivers and receivers for use in serial communications system.
3. RTU: Remote telemetry unit: A controller typically consisting of a PLC, and a means for remote communications.
F. Space: That portion of the switchgear, motor control center, panelboard, switchboard, or control panel that does not physically contain a device but is capable of accepting a device with no modifications to the equipment, i.e., provide standoffs, bus, and hardware, as part of the space.
G. Spare: That portion of the switchgear, motor control center, panelboard, switchboard, or control panel that physically contains a device with no load connections to be made.
H. Unequipped space: That portion of the switchgear, motor control center, panelboard, switchboard, or control panel that does not physically contain a device, standoff, bus, hardware, or other equipment.
I. USB: Universal Serial Bus is an industry standard that establishes specifications for cables, connectors, and protocols for connection, communication, and power supply interfacing between computer, peripherals, and other computers.
J. Vendor control panel (VCP): Control panels that are furnished with particular equipment by a vendor other than the ICSC. These panels may contain PLCs, RIO, OIT, HMI, etc.
1.04 SUBMITTALS (NOT USED)
1.05 QUALITY ASSURANCE
A. General:
1. Furnish equipment listed by and bearing the label of UL or of an independent testing laboratory acceptable to the Engineer and the Authority Having Jurisdiction.
1.06 DELIVERY, STORAGE, AND HANDLING
A. Shipping precautions:
1. After completion of shop assembly and successful factory testing, pack all equipment in protective crates, and enclose in heavy duty polyethylene envelopes or secured sheeting to provide complete protection from damage, dust, and moisture.
2. Place dehumidifiers, when required, inside the polyethylene coverings.
3. Skid-mount the equipment for final transport.
4. Provide lifting rings for moving without removing protective covering.
5. Display boxed weight on shipping tags together with instructions for unloading, transporting, storing, and handling at the job site.
Common Work Results for Electrical
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1.07 PROJECT OR SITE CONDITIONS
A. Non-conditioned spaces:
1. Provide additional temperature conditioning equipment to maintain all equipment in non-conditioned spaces subject to these ambient temperatures, with a band of 10 degrees Fahrenheit above the minimum operating temperature and 10 degrees Fahrenheit below maximum operating temperature, as determined by the equipment manufacturer’s guidelines.
B. Outdoor installations:
1. Provide electrical, instrumentation and control equipment suitable for operation in the ambient conditions where the equipment is located.
2. Provide heating, cooling, and dehumidifying devices incorporated into and included with electrical equipment, instrumentation and control panels to maintain the enclosures within the rated environmental operating ranges as specified in the Sections for the equipment.
1.08 ADMINISTRATIVE REQUIREMENTS (NOT USED)
1.09 SEQUENCING (NOT USED)
1.10 SCHEDULING (NOT USED)
1.11 WARRANTY (NOT USED)
1.12 SYSTEM START-UP (NOT USED)
1.13 OWNER’S INSTRUCTIONS (NOT USED)
1.14 MAINTENANCE (NOT USED)
PART 2 PRODUCTS
2.01 DESIGN AND PERFORMANCE CRITERIA
A. General:
1. Equipment manufacturer's responsibility extends to selection and mounting of gear drive units, motors or other prime movers, accessories, and auxiliaries to provide a complete, operable unit.
B. Equipment mounting and anchoring:
1. Mount equipment on cast-iron or welded-steel bases with structural steel support frames:
a. Utilize continuous welds to seal seams and contact edges between steel members.
b. Grind welds smooth.
2. Provide bases and supports with machined support pads, dowels for alignment of mating of adjacent items, adequate openings to facilitate grouting, and openings for electrical conduits.
Common Work Results for Electrical
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3. Provide jacking screws in bases and supports for equipment weighing over 1,000 pounds.
4. Design equipment anchorage, supports, and connections for dead load, running loads, loads during start-up, seismic load specified in Section 01850 - Design Criteria, and other loads as required for proper operation of equipment:
a. For equipment with an operating weight of 400 pounds or greater and all equipment that is supported higher than 4 feet above the floor, provide calculations for:
1) The operating weight and location of the centroid of mass for the equipment.
2) Forces and overturning moments.
3) Shear and tension forces in equipment anchorages, supports, and connections.
4) The design of equipment anchorage, supports, and connections based on calculated shear and tension forces.
5. Anchorage of equipment to concrete or masonry:
a. Perform calculations and determine number, size, type, strength, and location of anchor bolts or other connections.
b. Unless otherwise indicated on the Drawings, select and provide anchors from the types specified in Section 05190 - Mechanical Anchoring and Fastening to Concrete and Masonry.
c. Provide bolt sleeves around cast-in anchor bolts for 400 pounds or greater equipment:
1) Adjust bolts to final location and secure the sleeve.
6. Anchorage of equipment to metal supports:
a. Perform calculations and determine number, size, type, strength, and location of bolts used to connect equipment to metal supports.
7. Unless otherwise indicated on the Drawings, install equipment supported on concrete over non-shrink grout pads as specified in this Section.
2.02 MANUFACTURERS (NOT USED)
2.03 EXISTING PRODUCTS (NOT USED)
2.04 MATERIALS
A. Enclosures:
1. Provide enclosures for electrical, instrumentation and control equipment, regardless of supplier or subcontractor furnishing the equipment, that meet the requirements of NEMA Standard 250.
Common Work Results for Electrical
16050-5 8660F10 April 2023
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/16050 (BidSetFinal) B. Plant area electrical Work requirements:
1. Provide electrical materials in accordance with the following table, unless otherwise specifically indicated on the Drawings:
a. Conduit installation requirements: As specified in Section 16130 - Conduits.
Table 1. Electrical Material Requirements
PLANT AREA
ENVIRONMENT
W = WET
D = DAMP
C = CLEAN/DRY
X = CORROSIVE
H = HAZARDOUS
NEMA
ENCLOSURE
TYPE
EXPOSED
CONDUIT
TYPE (as
specified
in Section
16130 -
Conduits)
SUPPORT
MATERIALS
Recycled Water PS - Outdoor W 4 GRC GALV
STEEL
Recycled Water PS Electrical
Building - Indoor
C 1, 12 GRC GALV
STEEL
WWTP Electrical
Buildings/Rooms - Indoor
C 1, 12 GRC GALV
STEEL
WWTP Electrical
Buildings/Rooms - Outdoor
W 4X PCS STAINLESS
STEEL
Carousel, PAU, and
Backwash PS - Outdoor
W 4X PCS STAINLESS
STEEL
AWT
Blower Room
C 1, 12 GRC GALV
STEEL
AWT
Chemical Room
X 4X PCS STAINLESS
STEEL
2.05 MANUFACTURED UNITS (NOT USED)
2.06 EQUIPMENT (NOT USED)
2.07 COMPONENTS (NOT USED)
2.08 ACCESSORIES (NOT USED)
2.09 MIXES (NOT USED)
2.10 FABRICATION (NOT USED)
2.11 FINISHES (NOT USED) SOURCE QUALITY CONTROL (NOT USED)
Common Work Results for Electrical
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pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/16050 (BidSetFinal) PART 3 EXECUTION
3.01 EXAMINATION (NOT USED)
3.02 PREPARATION
A. Sequencing and scheduling:
1. Equipment anchoring: Project construction schedule must include an event for obtaining the anchor layout drawings from equipment manufacturers in adequate time for templates to be constructed and anchors to be cast in place.
3.03 INSTALLATION
A. Demolition:
1. As specified in Technical Sections or as indicated on the Drawings.
2. Disconnect utilities:
a. Disconnect electrical equipment.
b. Disconnect other utilities as specified in Section 16210 - Utility Coordination.
3. Remove and dispose of conduit, wire, electrical equipment, controls, etc., associated with the items and/or areas to be demolished as indicated on the Drawings unless otherwise indicated.
4. Salvage electrical equipment as specified in Section 01738 - Selective Alterations and Demolition.
5. For each piece of equipment to be removed, remove all ancillary components (e.g., instruments, solenoid valves, disconnect switches, etc.).
6. Conduit:
a. Where conduit removal, other than associated with equipment to be removed, is indicated on the Drawings:
1) Remove exposed conduit to the point of encasement or burial. 2) Cut conduit flush and plug or cap encased or buried conduit. b. Where conduits are to remain in place and removal is not indicated on the Drawings:
1) Cap conduit open ends.
2) Re-label empty conduits as spare.
7. Remove all wire back to the source for all conduits to be removed or abandoned in place.
8. Provide new nameplates for modified electrical distribution equipment, motor control centers etc. to identify equipment and circuits that are no longer used as spares.
9. Provide new typewritten schedules for all modified panelboards.
B. Portions of this Project involve installation in existing facilities and interfaces to existing circuits, power systems, controls, and equipment:
1. Perform and document comprehensive and detailed field investigations of existing conditions (circuits, power systems, controls, equipment, etc.) before starting any Work.
2. Determine information necessary to document, interface with, modify, upgrade, or replace existing circuits, power systems, controls, and equipment.
3. Provide and document interface with, modifications to, upgrades, or replacement of existing circuits, power systems, controls, and equipment.
Common Work Results for Electrical
16050-7 8660F10 April 2023
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/16050 (BidSetFinal) C. Equipment:
1. Where the Drawings do not show dimensions for locating equipment, install equipment in the approximate locations indicated on the Drawings.
D. Provide NEC required working space in front of all electrical equipment as if it could be worked on energized.
E. Circuits of different service voltage:
1. Voltage and service levels:
a. Medium voltage: greater than 1.0 kV.
b. Low voltage: 120 V to 480 V.
c. Instrumentation: Less than 50 VDC.
2. Install different service voltage circuits in separate raceways, junction boxes, manholes, hand holes, and pullboxes.
3. In manholes, install all cables operating at less than 50 VDC in PVC coated flexible metallic conduit, with corrosion resistant fittings.
F. Conductors shall not pass through equipment they are not terminating in unless indicated on the Drawings or approved by the engineer.
3.04 ERECTION, INSTALLATION, APPLICATION, CONSTRUCTION (NOT USED)
3.05 REPAIR/RESTORATION
A. When touchup or repair required, apply primer and coating systems as recommended by the equipment manufacturer.
3.06 RE-INSTALLATION (NOT USED)
3.07 COMMISSIONING – GENERAL
A. As specified in Section 01756 - Commissioning and Technical Sections.
B. Provide on-site assistance for troubleshooting and correcting electrical issues discovered during commissioning.
3.08 COMMISSIONING – SOURCE TESTING (NOT USED)
A. As specified in Attachment A. Source Testing and Owner Training Requirements.
3.09 COMMISSIONING – INSTALLATION VERIFICATION (NOT USED) A. Inspection activities conducted during construction do not satisfy inspection or testing requirements as specified in Section 16950 - Field Electrical Acceptance Tests.
3.10 COMMISSIONING – FUNCTIONAL TESTING (NOT USED)
3.11 COMMISSIONING – SYSTEM TESTING (NOT USED)
Common Work Results for Electrical
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3.12 COMMISSIONING – OWNER TRAINING
A. As specified in Attachment A - Source Testing and Owner Training Requirements.
3.13 COMMISSIONING – DOCUMENTATION (NOT USED)
3.14 FIELD QUALITY CONTROL
A. Workmanship:
1. Leave wiring in panels, manholes, boxes, and other locations neat, clean, and organized:
a. Neatly coil and label spare wiring lengths.
b. Shorten, re-terminate, and re-label excessive used, as well as spare, wire, and cable lengths, as directed by the Engineer.
3.15 ADJUSTING (NOT USED)
3.16 CLEANING
A. General:
1. Clean and vacuum all enclosures to remove all metal filings, surplus insulation and any visible dirt, dust, or other matter before energization of the equipment or system start-up:
a. Use of compressors or air blowers for cleaning is not acceptable.
2. Clean luminaries that were used in the areas affected by the construction.
3.17 PROTECTION (NOT USED)
3.18 SCHEDULES (NOT USED)
END OF SECTION
Common Work Results for Electrical
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ATTACHMENT A - SOURCE TESTING AND OWNER TRAINING REQUIREMENTS
Common Work Results for Electrical
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SOURCE TESTING AND OWNER TRAINING REQUIREMENTS
Section
Number Section Title
Source
Testing
Owner Training
Requirements
(Witnessed or
Nonwitnessed)
Maintenance
(hrs per
session)
Operation
(hrs per
session)
16262 Variable Frequency Drives
0.50 - 50 Horsepower
Non-witnessed 1 1
16265 Reduced Harmonic Variable
Frequency Drives Non-witnessed 1 1
16422 Motor Starters Non-witnessed 1 1
16441 Group-Mounted Circuit
Breaker Switchboards
Non-witnessed 1 1
Grounding and Bonding
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GROUNDING AND BONDING
PART 1 GENERAL
1.01 SUMMARY
A. Section includes: Grounding materials and requirements.
1.02 REFERENCES
A. As specified in Section 16050 - Common Work Results for Electrical.
B. ASTM International (ASTM):
1. B3 - Standard Specification for Soft or Annealed Copper Wire.
2. B8 - Standard Specification for Concentric-Lay-Stranded Copper Conductors, Hard, Medium-Hard, or Soft.
C. Institute of Electrical and Electronics Engineers (IEEE):
1. 81 - IEEE Guide for Measuring Earth Resistivity, Ground Impedance, and Earth Surface Potentials of a Grounding System.
D. Underwriters Laboratories, Inc. (UL):
1. 467 - Ground and Bonding Equipment.
1.03 DEFINITIONS
A. As specified in Section 16050 - Common Work Results for Electrical.
1.04 SUBMITTALS
A. Furnish submittals as specified in Sections 01330 - Submittal Procedures and 16050 - Common Work Results for Electrical.
B. Product data:
1. Catalog cutsheets.
1.05 QUALITY ASSURANCE
A. All grounding components and materials shall be UL listed and labeled.
1.06 DELIVERY, STORAGE, AND HANDLING (NOT USED)
1.07 PROJECT/SITE CONDITIONS (NOT USED)
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1.08 SEQUENCING (NOT USED)
1.09 SCHEDULING (NOT USED)
1.10 WARRANTY
A. As specified in Section 01783 - Warranties and Bonds.
1.11 SYSTEM START-UP (NOT USED)
1.12 OWNER’S INSTRUCTIONS (NOT USED)
1.13 MAINTENANCE (NOT USED)
PART 2 PRODUCTS
2.01 MANUFACTURERS
A. Compression connectors: One of the following or equal:
1. Erico.
2. Harger.
3. Burndy.
4. Thomas & Betts.
5. Panduit.
B. Ground rods: One of the following or equal:
1. Erico.
2. Harger.
3. Nehring
4. Thomas & Betts.
C. Ground cable: One of the following or equal:
1. Erico.
2. Harger
3. Nehring.
4. Southwire.
D. Precast ground well boxes: One of the following or equal:
1. Brooks Products, 3-RT Valve Box.
2. Christy Concrete Products, G12 Valve Box.
2.02 SYSTEM DESCRIPTION
A. Ground equipment and raceway systems so that the completed installation conforms to all applicable code requirements.
B. Provide a complete electrical grounding system as indicated on the Drawings and as specified including but not limited to:
1. Grounding electrodes.
2. Bonding jumpers.
3. Ground connections.
Grounding and Bonding
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pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/16060 (BidSetFinal) C. Provide bonding jumpers and wire, grounding bushings, clamps and appurtenances required for complete grounding system to bond equipment and raceways to equipment grounding conductors.
D. The ground system resistance (electrode to ground) of the completed installation, as determined by tests specified in Section 16950 - Field Electrical Acceptance Tests, shall be:
1. 5 ohms or less for industrial systems.
2. 1 ohm or less for electrical buildings.
2.03 EXISTING PRODUCTS (NOT USED)
2.04 MATERIALS
A. Ground rod:
1. Minimum: 3/4-inch diameter, 10 feet long.
2. Uniform 10 mil covering of electrolytic copper metallically bonded to a rigid steel core:
a. The copper-to-steel bond shall be corrosion resistant.
3. In accordance with UL 467.
4. Sectional type joined by threaded copper alloy couplings.
5. Fit the top of the rod with a threaded coupling and steel-driving stud.
B. Ground cable:
1. Requirements:
a. Soft drawn (annealed).
b. Concentric lay, coarse stranded in accordance with ASTM B8. c. Bare copper in accordance with ASTM B3.
2. Size is as indicated on the Drawings, but not less than required by the NEC.
Use the following type of wire unless otherwise indicated on the Drawings:
a. Size No. 6 AWG and smaller; solid conductor.
b. Size No. 4 AWG and larger; stranded conductor.
C. Compression connectors:
1. Manufactured of high copper alloy specifically for the particular grounding application.
2. Suitable for direct burial in earth and concrete.
3. Identifying compression die number inscription to be impressed on compression fitting.
4. Barrels prefilled and sealed with oxide-inhibiting and anti-seizing compound.
D. Grounding electrode conductors:
1. Minimum size in accordance with the NEC.
E. Main bonding jumpers and bonding jumpers:
1. Minimum size in accordance with the NEC.
2.05 MANUFACTURED UNITS (NOT USED)
2.06 EQUIPMENT (NOT USED)
Grounding and Bonding
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2.07 COMPONENTS (NOT USED)
2.08 ACCESSORIES
A. Precast ground well boxes:
1. Minimum 10-inch interior diameter.
2. Traffic-rated cast iron cover.
3. Permanent “GROUND” marking on cover.
2.09 MIXES (NOT USED)
2.10 FABRICATION (NOT USED)
2.11 FINISHES (NOT USED)
2.12 SOURCE QUALITY CONTROL (NOT USED)
PART 3 EXECUTION
3.01 EXAMINATION (NOT USED)
3.02 PREPARATION (NOT USED)
3.03 INSTALLATION
A. Provide a separate grounding conductor for each motor and connect at motor terminal box. Do not use bolts securing motor box to frame or cover for grounding connectors:
1. When grounding motors driven by variable frequency drives (VFD) comply with the requirements of the VFD manufacturer.
B. Provide a grounding type bushing with lug for connection of grounding conductor for conduits that originate from each motor control center section, switchboard, or panelboard:
1. Individually bond these raceways to the ground bus in the equipment.
C. Provide grounding type bushings with lugs for connection of grounding conductor at both ends of metallic conduit runs. Bond ground bushings to the grounding system.
D. Provide a green insulated wire-grounding jumper from the ground screw to a box grounding screw and, for grounding type devices, to equipment grounding conductor.
E. Interconnect the secondary switchgear, switchboard, or panelboard neutral bus to the ground bus in the secondary switchgear, switchboard, or panelboard compartment, only at service entrance point or after a transformer.
Grounding and Bonding
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pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/16060 (BidSetFinal) F. Duct bank ground system:
1. Provide a bare copper grounding conductor the entire length of each duct bank, embedded in the concrete of the duct bank as indicated on the Drawings and specified in the Specifications.
2. Bond duct bank ground conductors together where duct banks join, merge, intersect, or split.
G. Grounding at service (600 V or Less):
1. Connect the neutral to ground only at one point within the enclosure of the first disconnecting means on the load side of the service transformer.
H. Ground connections:
1. All connections to the ground grid system, the duct bank grounding system, equipment, ground rods, etc., shall be made using compression type grounding connectors as indicated on the Drawings, UL listed, and labeled for the application.
2. Make ground connections in accordance with the manufacturer's instructions.
3. Do not conceal or cover any ground connections until the Engineer or authorized representative has established and provided written confirmation that every grounding connection is as indicated on the Drawings and specified in the Specifications.
I. Grounding electrode system:
1. Ground ring:
a. Provide all trenching and materials necessary to install the ground ring as indicated on the Drawings.
b. Ground ring conductor shall be in direct contact with the earth, or where embedded, concrete, of the size as indicated on the Drawings. c. Minimum burial depth 36 inches or as indicated on the Drawings. d. Re-compact disturbed soils to original density in 6-inch lifts.
2. Ground rods:
a. Locations as indicated on the Drawings.
b. Length of rods forming an individual ground array shall be equal in length. c. Drive ground rods and install grounding conductors before construction of concrete slabs and duct banks.
d. Pre-crimp all ground rods, as recommended by the manufacturer, before crimping connector to ground rod.
3. Metal underground water pipe:
a. Bond metal underground domestic water pipe to grounding electrode system.
4. Metal frame of building or structure:
a. Bond metal frame of building or structure to grounding electrode system.
5. Extend grounding conductors through concrete to accessible points for grounding equipment and electrical enclosures.
6. Where grounding conductors are exposed and subject to physical damage, install in Schedule 80 PVC conduit for protection.
7. Install grounding system at each structure where switchgear, motor control centers, switchboards, panelboards, panels, or other electrical equipment are installed.
Grounding and Bonding
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pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/16060 (BidSetFinal) J. Shield grounding:
1. Analog signal cables shields shall only be grounded at a single point in the loop. Unless otherwise noted, ground signal cable shields at control panel.
2. For communication and data line signal cable shields and drain wires should be grounded at both ends of the cable run.
3. Insulate the shielding and exposed drain wire for each signal cable with heat-shrink tubing.
4. Terminate the signal cable shield on a dedicated grounding terminal block.
K. Antenna ground:
1. Install individual ground rod or ground system for communication system antenna:
a. Install a dedicated grounding electrode conductor from the antenna ground to the grounding electrode system.
b. Do not connect any other grounds to the antenna grounding electrode conductor.
2. Install ground rod or ground system in accordance with the radio manufacturer's requirements.
L. Where indicated on the Drawings, install ground rods in precast ground wells.
3.04 ERECTION, INSTALLATION, APPLICATION, CONSTRUCTION (NOT USED)
3.05 REPAIR/RESTORATION (NOT USED)
3.06 RE-INSTALLATION (NOT USED)
3.07 COMMISSIONING
A. As specified in Section 01756 - Commissioning.
3.08 FIELD QUALITY CONTROL
A. Measure grounding electrode system resistance to ground in accordance with IEEE 81.
3.09 ADJUSTING
A. Under the direction of the Engineer, add additional parallel connected ground rods and/or deeper driven rods until the ground resistance measurement meets the specified resistance requirements:
1. Use of salts, water, or compounds to attain the specified ground resistance is not acceptable.
3.10 CLEANING (NOT USED)
3.11 PROTECTION (NOT USED)
3.12 SCHEDULES (NOT USED)
END OF SECTION
Hangers and Supports
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pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/16070 (BidSetFinal) SECTION 16070
HANGERS AND SUPPORTS
PART 1 GENERAL
1.01 SUMMARY
A. Section includes:
1. Mounting and supporting electrical equipment and components.
1.02 REFERENCES
A. As specified in Section 16050 - Common Work Results for Electrical.
B. ASTM International (ASTM):
1. A123 - Standard Specification for Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products.
2. A153 - Standard Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware.
1.03 DEFINITIONS
A. As specified in Section 16050 - Common Work Results for Electrical.
1.04 SYSTEM DESCRIPTION
A. Design requirements:
1. Conform to the requirements of the Building Code as specified in Section 01410 - Regulatory Requirements.
2. Demonstrate the following using generally accepted engineering methods:
a. That the anchors to the structure are adequate to resist the loads generated in accordance with the Building Code and equipment requirements.
b. That the required load capacity of the anchors can be fully developed in the structural materials to which they are attached.
3. Design loading and anchoring requirements:
a. As indicated in the Building Code unless otherwise specified. b. Seismic loading requirements:
1) Freestanding, suspended, or wall-hung equipment shall be anchored in place by methods that will satisfy the requirements for the seismic design specified in Section 01850 - Design Criteria.
c. Wind loading requirements:
1) All exterior equipment shall be anchored in place by methods that will satisfy the requirements for wind design specified in Section 01850 - Design Criteria.
d. Minimum safety factor against overturning: 1.5.
e. The foundation and structures to which hangers and supports are attached shall be capable of withstanding all anchor loads.
Hangers and Supports
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pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/16070 (BidSetFinal) B. Performance requirements:
1. Hangers and supports individually and as a system shall resist all weights and code-required forces without deflections and deformations that would damage the supporting elements, the equipment supported, or the surrounding construction.
1.05 SUBMITTALS
A. Furnish submittals as specified in Section 01330 - Submittal Procedures.
B. Product data:
1. Supports:
a. Materials.
b. Geometry.
c. Manufacturer.
2. Hardware:
a. Materials.
b. Manufacturer.
C. Shop drawings:
1. Complete dimensioned and scalable shop drawings of all supporting structures, trapezes, wall supports, etc.
2. Complete anchoring details for equipment, lighting and raceway, supporting structures, trapezes, and wall supports for all equipment:
a. For free standing supports and wall supports supporting equipment weight in excess of 200 pounds:
1) Stamped by a professional engineer licensed in the state where the Project is being constructed.
b. Said submittals, by virtue of the fact that they bear the stamp of a registered engineer, will be reviewed for general consistency with the requirements specified in the Contract Documents, but not for context, accuracy, or method of calculation.
3. Include data on attachment hardware and construction methods that will satisfy the design loading and anchoring criteria.
D. Installation instructions:
1. Furnish anchorage instructions and requirements based on the seismic and wind conditions of the Site:
a. Stamped by a professional engineer licensed in the state where the Project is being constructed.
1.06 QUALITY ASSURANCE
1.07 DELIVERY, STORAGE, AND HANDLING
1.08 PROJECT OR SITE CONDITIONS
A. As specified in Section 01850 - Design Criteria.
Hangers and Supports
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1.09 SEQUENCING (NOT USED)
1.10 SCHEDULING (NOT USED)
1.11 WARRANTY
A. As specified in Section 01783 - Warranties and Bonds.
1.12 SYSTEM STARTUP (NOT USED)
1.13 OWNER'S INSTRUCTIONS (NOT USED)
1.14 MAINTENANCE (NOT USED)
PART 2 PRODUCTS
2.01 MANUFACTURERS
A. One of the following or equal:
1. Preformed channel:
a. Thomas & Betts.
b. Power-Strut.
c. Unistrut.
d. Cooper B-Line.
e. Robroy.
f. Tyco.
2.02 EXISTING PRODUCTS (NOT USED)
2.03 MATERIALS
A. Use materials appropriate for the area as specified in Section 16050 - Common Work Results for Electrical.
B. Preformed channel:
1. Hot dip galvanized steel:
a. Supports:
1) In accordance with ASTM A123 or A153.
2) Minimum zinc coating thickness of 2.5 mils.
b. Hardware:
1) Electro-galvanized.
2) In accordance with ASTM A153.
2. Stainless steel:
a. Supports:
1) In accordance with ASTM A240.
2) ANSI Type 316 material.
b. Hardware:
1) ANSI Type 316 material.
2.04 MANUFACTURED UNITS (NOT USED)
Hangers and Supports
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2.05 EQUIPMENT (NOT USED)
2.06 COMPONENTS (NOT USED)
2.07 ACCESSORIES
A. Anchor bolts:
1. As specified in Section 05190 - Mechanical Anchoring and Fastening to Concrete and Masonry.
2.08 MIXES (NOT USED)
2.09 FABRICATION (NOT USED)
2.10 FINISHES
A. Paint and finish all supporting structures as specified in Section 09960 - High-Performance Coatings.
2.11 SOURCE QUALITY CONTROL (NOT USED)
PART 3 EXECUTION
3.01 EXAMINATION (NOT USED)
3.02 PREPARATION (NOT USED)
3.03 INSTALLATION
A. Preformed Channel:
1. Mount all raceways, cabinets, boxes, fixtures, instruments, and devices on Contractor-fabricated racks unless otherwise indicated on the Drawings:
a. Provide the necessary sway bracing to keep trapeze type structures from swaying under seismic events or wind loading.
2. Brace and anchor freestanding equipment supports using methods that provide structural support based on the seismic loads and wind loads:
a. Lateral deflection at top of supports not to exceed support height divided by 240 unless otherwise approved by the Engineer.
3. Provide fabricated steel support pedestals for wall mounted panels that weigh more than 200 pounds:
a. Fabricate pedestals out of welded angle, tube sections, or preformed channel.
b. If the supported equipment is a panel or cabinet, match the supported equipment in physical appearance and dimensions.
c. Provide auxiliary floor supports for transformers hung from stud walls and weighing more than 200 pounds.
4. Mount all equipment, cabinets, boxes, instruments, and devices in damp or wet locations on minimum of 7/8-inch preformed mounting channel:
a. Mount channel vertically along the length of the device so that water or moisture may run freely behind the device.
Hangers and Supports
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5. Corrosion protection:
a. Isolate dissimilar metals, except where required for electrical continuity:
1) Use neoprene washers, 9-mil polyethylene tape, or gaskets for isolation.
6. Raceway:
a. Furnish all racks and trapeze structures needed to support the raceway from the structure:
1) Group raceway and position on racks to minimize crossovers. 2) Provide the necessary bracing to keep trapeze type structures from swaying under loads from cable installation, seismic forces, or wind forces.
7. Anchoring methods:
a. Solid concrete: Anchor bolts, anchor rods or post-installed anchors as specified in Section 05190 - Mechanical Anchoring and Fastening to Concrete and Masonry.
b. Metal surfaces: Machine screws or bolts.
c. Hollow masonry units: Post installed anchors as specified in Section 05190 - Mechanical Anchoring and Fastening to Concrete and Masonry.
8. When supporting devices on metal or wood stud construction, bridge studs with preformed channel, and mount the devices to the channel.
9. Recoat or seal all drilled holes, cut or scratched surfaces or with products recommended by the manufacturer.
3.04 ERECTION, INSTALLATION, APPLICATION, CONSTRUCTION (NOT USED)
3.05 REPAIR/RESTORATION (NOT USED)
3.06 RE-INSTALLATION (NOT USED)
3.07 COMMISSIONING
A. As specified in Section 01756 - Commissioning.
3.08 FIELD QUALITY CONTROL (NOT USED)
3.09 ADJUSTING (NOT USED)
3.10 CLEANING (NOT USED)
3.11 PROTECTION (NOT USED)
3.12 SCHEDULES (NOT USED)
END OF SECTION
Identification for Electrical Systems
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IDENTIFICATION FOR ELECTRICAL SYSTEMS
PART 1 GENERAL
1.01 SUMMARY
A. Section includes:
1. Identification of electrical equipment, devices, and components.
2. Material, manufacturing, and installation requirements for identification devices.
1.02 REFERENCES
A. As specified in Section 16050 - Common Work Results for Electrical.
B. Occupational Safety and Health Administration (OSHA).
1.03 DEFINITIONS
A. As specified in Section 16050 - Common Work Results for Electrical.
1.04 SYSTEM DESCRIPTION
A. Nameplates:
1. Provide a nameplate for each piece of electrical equipment and devices, control panel and control panel components.
2. Provide all nameplates of identical style, color, and material throughout the facility.
3. Device nameplates information:
a. Designations as indicated on the Drawings and identified on the Process and Instrumentation Drawings.
B. Wire numbers:
1. Coordinate the wire numbering system with all vendors of equipment so that every field wire has a unique number associated with it for the entire system:
a. Wire numbers shall correspond to the wire numbers on the control drawings or the panel and circuit numbers for receptacles and lighting. b. Wire numbers shall correspond to the terminal block number to which they are attached in the control panel.
c. Internal panel wires on a common terminal shall have the same wire number.
d. Multi-conductor cables shall be assigned a cable number that shall be attached to the cable at intermediate pull boxes and stub-up locations
Identification for Electrical Systems
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pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/16075 (BidSetFinal) beneath freestanding equipment. All multi-conductor and instrumentation cables shall be identified at pull points as described above:
1) Label armored multi-conductor cable using the conduit number as indicated on the Drawings, following the requirements for conduit markers in Section 16130 - Conduits.
2. Provide the following wiring numbering schemes throughout the project for field wires between process control module, (PCM), vendor control panels, (VCP), motor control centers, (MCC), field starters, field instruments, etc.
OR
Where:
ORIGIN LOC . = Designation for originating panel or device ORIGIN TERM. = Terminal designation at originating panel or device DEST. LOC. = Designation for destination panel or device DEST. TERM. = Terminal designation at destination panel or device or PLC I/O address at destination panel:
a. Identify equipment and field instruments as the origin. b. PCMs are always identified as the destination.
c. Location is the panel designation for VCP, LCP, or PCM. For connections to MCCs, location is the specific starter tag and loop number. Location is the tag and loop number for motor starters, field instruments and equipment. Any hyphen in the panel designation or tag and loop number shall be omitted.
d. Terminal designation is the actual number on the terminal block where the conductor terminates at field devices and vendor control panels. For multi-conductor cables, all terminal numbers shall be shown, separated by commas.
e. Terminal designations at motor leads shall be the motor manufacturer’s standard terminal designation (e.g., T1, T2, T3, etc.). f. Terminal designations at PCMs where the field conductor connects to field terminal blocks for a PLC input or output shall be the PLC address (Note:
the following PLC I/O numbering scheme is typical for Allen-Bradley, the
Identification for Electrical Systems
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pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/16075 (BidSetFinal) numbering scheme should be modified to match that of the actual PLC manufacturer used for the project):
1) Discrete Point: W:X:Y/Z.
Analog Point: W:X:Y.Z.
Where:
W= I for input, O for output
X= PLC number (1, 2, 3…)
Y= Slot number (01, 02, 03…)
Z= Terminal number (00, 01, 02…) for a discrete point or a word number for an analog point (1, 2, 3…)
g. Terminal designations at PCMs where the conductor does not connect to a PLC I/O point shall be the terminal number with a “C” prefix (e.g., C0010). For common power after a fuse or neutrals after a switch, the subsequent points shall have and capital letter suffix starting with “A” (e.g., C0010A).
3. Case 1: Vendor control panel (VCP) to process control module (PCM):
Field wire number/label: A-B/C-D
A = Vendor control panel number without hyphen (VCP#)
B = Terminal number within VCP (manufacturer’s or vendor’s standard terminal number)
C = Process control module number without hyphen (PCM#) D = Either the PLC address if the field terminal is connected directly to a PLC input or output point or the terminal number with a “C” prefix if not connected directly to a PLC I/O point (C0010)
Examples:VCP#-10/PCM#-I: 1:01/01
VCP#-10/PCM#-O: 1:10/07
VCP#-10/PCM#-C0100
4. Case 2: Field instrument to process control module (PCM):
Field wire number/label: E-F/C-D
C = Process control module number without hyphen (PCM#) D = Either the PLC address if the field terminal is connected directly to a PLC input or output point or the terminal number with a “C” prefix if not connected directly to a PLC I/O point (C0010)
E = Field mounted instrument tag and loop numbers without hyphen (EDV#) F = Manufacturer’s standard terminal number within instrument. Use both terminal numbers for analog points separated by a comma Examples: TIT#-2,3/PCM#-I: 1:01.1
TSH#-1/PCM#-I: 2:01/00
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5. Case 3: Motor control center (MCC) to process control module (PCM):
Field wire number/label: G-B/C-D
B =Terminal number within Motor Control Center (manufacturer’s or vendor’s standard terminal number)
C = Process control module without hyphen (PCM#)
D = Either the PLC address if the field terminal is connected directly to a PLC input or output point or the terminal number with a “C” prefix if not connected directly to a PLC I/O point (C0010)
G = Actual starter designation in the motor control center without hyphen (MMS#)
Examples:MMS#-10/PCM#-I: 1:01/01
MMS#-10/PCM#-O: 1:10/07
MMS#-10/PCM#-C0100
6. Case 4: Motor control center (MCC) to vendor control panel (VCP):
Field wire number/label: G-B/A-B
A = Vendor control panel number without hyphen (VCP#)
B = Terminal number within motor control center or vendor control panel (manufacturer’s or vendors standard terminal number)
G = Actual starter designation in the motor control center without hyphen (MMS#)
Example: MMS#-X2/VCP#-10
7. Case 5: Motor leads to a motor control center (MCC):
Field wire number/label: H-I/G-B
B = Terminal number within motor control center (manufacturer’s standard terminal number)
G = Actual starter designation in the motor control center without hyphen (MMS#)
H = Equipment tag and loop number without hyphen (PMP#) I = Motor manufacturer’s standard motor lead identification (e.g., T1, T2, T3, etc.)
Example: PMP-#-T3/MMS#-T3
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8. Case 6: Remote or separately mounted starter or variable frequency drive (VFD) to process control module (PCM):
Field wire number/label: J-B/C-D
B = Terminal number within starter or variable frequency drive (manufacturer’s standard terminal number)
C = Process control module number without hyphen (VCP#) D = Either the PLC address if the field terminal is connected directly to a PLC input or output point or the terminal number with a “C” prefix if not connected directly to a PLC I/O point (C0010)
J = Starter or variable frequency drive tag and loop number without hyphen (MMS#)
Examples: MMS#-10/PCM#-I: 1:01/01
MMS#-10/PCM#-O: 2: 10/07
MMS#-10/PCM#-C0010
9. Identify all spare conductors as required for other field wires with an “S” prefix:
Example: S MMS#-10/PCM#-C011
1.05 SUBMITTALS
A. Furnish submittals as specified in Section 01330 - Submittal Procedures.
B. Product data:
1. Nameplates:
a. Color.
b. Size:
1) Outside dimensions.
2) Lettering.
c. Material.
d. Mounting means.
2. Nameplate schedule:
a. Show exact wording for each nameplate.
b. Include nameplate and letter sizes.
3. Wire numbers:
a. Manufacturer’s catalog data for wire labels and label printer.
C. Record documents:
1. Update the conduit schedule to reflect the exact quantity of wire numbers including spares and destination points for all wires.
1.06 QUALITY ASSURANCE (NOT USED)
1.07 DELIVERY, STORAGE, AND HANDLING (NOT USED)
1.08 PROJECT SITE CONDITIONS (NOT USED)
1.09 SEQUENCING (NOT USED)
1.10 SCHEDULING (NOT USED)
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1.11 WARRANTY
A. As specified in Section 01783 - Warranties and Bonds.
1.12 SYSTEM START-UP (NOT USED)
1.13 OWNER’S INSTRUCTIONS (NOT USED)
1.14 MAINTENANCE (NOT USED)
PART 2 PRODUCTS
2.01 MANUFACTURERS
A. Nameplates and signs:
1. One of the following or equal:
a. Brady.
b. Seton.
B. Conductor and cable markers:
1. Heat-shrinkable tubing:
a. One of the following or equal:
1) Raychem.
2) Brady.
3) Thomas & Betts.
4) Kroy.
5) Panduit.
C. Conduit and raceway markers:
1. Stainless Steel, one of the following or equal:
a. Panduit
2. Brass, one of the following or equal:
a. Panduit.
2.02 EXISTING PRODUCTS (NOT USED)
2.03 MATERIALS
A. Nameplates:
1. Colors:
a. Warning nameplates: White-center, red face.
b. Other nameplates: Black-center, white face.
2. Laminated plastic engraving stock:
a. 3/32-inch-thick material.
b. 2-ply.
3. With chamfered edges.
4. Lettering:
a. Block style engraved characters of adequate size to be read easily from a distance of 6 feet:
b. Minimum letter height: 1/8-inch.
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1. Automatic equipment and high voltage signs:
a. Suitable for exterior use.
b. In accordance with OSHA regulations.
C. Conductor and cable markers:
1. Lettering:
a. Machine printed black characters on white tubing.
b. Minimum letter height: 10-point type or larger.
D. Conduit and raceway markers:
1. Stainless steel:
a. Type 304 or 316.
b. Minimum letter height: 3/16-inch
2. Solid brass:
a. Minimum thickness: 0.036 inches.
b. Letter characters stamped.
c. Minimum letter height: 3/16-inch.
2.04 MANUFACTURED UNITS (NOT USED)
2.05 EQUIPMENT (NOT USED)
2.06 COMPONENTS (NOT USED)
2.07 ACCESSORIES (NOT USED)
2.08 MIXES (NOT USED)
2.09 FABRICATION (NOT USED)
2.10 FINISHES (NOT USED)
2.11 SOURCE QUALITY CONTROL
A. Nameplates:
1. Provide all nameplates for control panel operator devices (e.g., pushbuttons, selector switches, pilot lights, etc.):
a. Same material and same color and appearance as the device nameplates, in order to achieve an aesthetically consistent and coordinated system.
PART 3 EXECUTION
3.01 EXAMINATION (NOT USED)
3.02 PREPARATION (NOT USED)
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3.03 INSTALLATION
A. Nameplates:
1. Attach nameplates to equipment with rivets, bolts or sheet metal screws, approved waterproof epoxy-based cement or install in metal holders welded to the equipment.
2. Provide a nameplate for each disconnecting means with the following:
a. Equipment served, voltage, and fuse size as required. b. Identification of the circuit source that supplies the disconnecting means.
3. On NEMA Type 4, NEMA Type 4X, or NEMA Type 7 enclosures, use epoxy-based cement to attach nameplates.
4. Nameplates shall be aligned and level or plumb to within 1/64 inch over the entire length:
a. Misaligned or crooked nameplates shall be remounted or provide new enclosures at the discretion of the Engineer.
B. Conductor and cable markers:
1. Apply all conductor and cable markers before termination.
2. Heat-shrinkable tubing:
a. Tubing shall be shrunk using a heat gun that produces low temperature heated air.
b. Tubing shall be tight on the wire after it has been heated. c. Characters shall face the open panel and shall read from left to right or top to bottom.
d. Marker shall start within 1/32 inch of the end of the stripped insulation point.
C. Conduit markers:
1. Furnish and install conduit markers for every conduit in the electrical system that is identified in the conduit schedule or part of the process system:
a. Conduit markings shall match the conduit schedule.
2. Mark conduits at the following locations:
a. Each end of conduits that are greater than 10 feet in length. b. The middle of conduits that are 10 feet or less in length. c. Where the conduit penetrates a wall or structure.
d. Where the conduit emerges from the ground, slab, etc.
3. Mark conduits after the conduits have been fully painted.
4. Position conduit markers so that they are easily read from the floor.
5. Attach stainless steel tags with stainless steel cable ties.
6. Attach brass tags with Type 316 stainless steel wires.
7. Mark conduits before construction review by Engineer for punch list purposes.
8. Label intrinsically safe conduits in accordance with the requirements of the NEC.
D. Signs and labeling:
1. Furnish and install permanent warning signs at mechanical equipment that may be started automatically or from remote locations:
a. Fasten warning signs with round head stainless steel screws or bolts. b. Locate and mount in a manner to be clearly legible to operations personnel.
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2. Furnish and install permanent and conspicuous warning signs on equipment (front and back), doorways to equipment rooms, pull boxes, manholes, etc. where the voltage exceeds 600 volts.
3. Furnish and install warning signs on equipment that has more than one source of power:
a. Warning signs to identify every panel and circuit number of the disconnecting means of all external power sources.
4. Place warning signs on equipment that has 120 VAC control voltage source used for interlocking:
a. Identify panel and circuit number or conductor tag for control voltage source disconnecting means.
3.04 ERECTION, INSTALLATION, APPLICATION, CONSTRUCTION (NOT USED)
3.05 REPAIR/RESTORATION (NOT USED)
3.06 RE-INSTALLATION (NOT USED)
3.07 COMMISSIONING
A. As specified in Section 01756 - Commissioning.
3.08 FIELD QUALITY CONTROL
A. Replace any nameplates, signs, conductor markers, cable markers or raceway labels that in the sole opinion of the Engineer do not meet the Engineer’s aesthetic requirements.
3.09 ADJUSTING (NOT USED)
3.10 CLEANING (NOT USED)
3.11 PROTECTION (NOT USED)
3.12 SCHEDULES (NOT USED)
END OF SECTION
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600-VOLT OR LESS WIRES AND CABLES
PART 1 GENERAL
1.01 SUMMARY
A. Section includes:
1. 600-volt class or less wire and cable.
1.02 REFERENCES
A. As specified in Section 16050 - Common Work Results for Electrical.
B. ASTM International (ASTM):
1. B3 - Standard Specification for Soft or Annealed Copper Wire.
2. B8 - Standard Specification for Concentric-Lay-Stranded Copper Conductors, Hard, Medium-Hard, or Soft.
C. CSA International (CSA).
D. National Electrical Code (NEC).
E. National Electrical Manufacturers Association /Insulated Cable Engineers Association (NEMA/ICEA):
1. NEMA WC 57/ICEA S-73-532 - Standard for Control, Thermocouple Extension, and Instrumentation Cables.
2. NEMA WC 66/ICEA S-116-732 - Standard for Category 6 and 6A, 100 Ohm, Individually Unshielded Twisted Pairs, Indoor Cables (With or Without an Overall Shield) for Use in LAN Communication Wiring Systems.
3. NEMA WC 70/ICEA S-95-658-1999 - Standard for Power Cables Rated 2,000 Volts or Less for the Distribution of Electrical Energy.
F. Telecommunications Industry Association (TIA):
1. 568.2-D - Balanced Twisted-Pair Telecommunications Cabling and Components Standard.
2. 569-B - Commercial Building Standards for Telecommunications Pathways and Spaces.
G. Underwriter's Laboratories Inc., (UL):
1. 44 - Standard for Thermoset-Insulated Wires and Cables.
1.03 DEFINITIONS
A. As specified in Section 16050 - Common Work Results for Electrical.
B. Specific definitions and abbreviations:
1. AWG: American wire gauge.
2. BCCS: Bare copper-covered steel.
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3. CPE: Chlorinated polyethylene.
4. FEP: Fluorinated ethylene propylene.
5. FHDPE: Foam high-density polyethylene.
6. FPE: Foam polyethylene.
7. OD: Outside diameter.
8. PVC: Polyvinyl chloride.
9. XHHW: Cross-linked high heat water resistant insulated wire.
C. Definitions of terms and other electrical considerations as set forth in the:
1. ASTM.
2. ICEA.
1.04 SYSTEM DESCRIPTION
A. Furnish and install the complete wire and cable system.
1.05 SUBMITTALS
A. Furnish submittals as specified in Section 01330 - Submittal Procedures.
B. Product data:
1. Manufacturer of wire and cable.
2. Insulation:
a. Type.
b. Voltage class.
3. AWG size.
4. Conductor material.
5. Pulling compounds.
C. Shop drawings:
1. Show splice locations.
a. For each proposed splice location provide written justification describing why the splice is necessary.
D. Test reports:
1. Submit test reports for meg-ohm tests.
E. Calculations:
1. Submit cable pulling calculations to the Engineer for review and comment for all cables that will be installed using mechanical pulling equipment. Show that the maximum cable tension and sidewall pressure will not exceed manufacturer recommended values:
a. Provide a table showing the manufacturer’s recommended maximum cable tension and sidewall pressure for each cable type and size included in the calculations.
b. Submit the calculations to the Engineer a minimum of 2 weeks before conduit installation.
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1. Submit installed cable lengths using a conduit measuring tape for all 3-phase circuits including, but not limited to:
a. 480 V circuits.
b. 208 V circuits.
2. Submit installed lengths of cable for the following single-phase circuits:
a. Circuits feeding single-phase transformers.
b. Circuits feeding single-phase panelboards.
1.06 QUALITY ASSURANCE
A. All wires and cables shall be UL listed and labeled.
1.07 DELIVERY, STORAGE, AND HANDLING (NOT USED)
1.08 PROJECT OR SITE CONDITIONS (NOT USED)
1.09 SEQUENCING (NOT USED)
1.10 SCHEDULING (NOT USED)
1.11 WARRANTY
A. As specified in Section 01783 - Warranties and Bonds.
1.12 SYSTEM START-UP (NOT USED)
1.13 OWNER`S INSTRUCTIONS (NOT USED)
1.14 MAINTENANCE (NOT USED)
PART 2 PRODUCTS
2.01 MANUFACTURERS
A. One of the following or equal:
1. 600-volt class wire and cable:
a. General Cable.
b. Okonite Co.
c. Southwire Co.
d. Service Wire.
2. 600-volt VFD cable:
a. General Cable.
b. Southwire Co.
c. Service Wire.
3. Instrumentation class wire and cable:
a. Alpha Wire Co.
b. Belden CDT.
c. General Cable.
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e. Rockbestos Surprenant Cable Corp.
4. Network cables:
a. General Cable.
b. Belden.
c. CommScope.
2.02 EXISTING PRODUCTS (NOT USED)
2.03 MATERIALS
A. Conductors:
1. Copper in accordance with ASTM B3.
2.04 MANUFACTURED UNITS
A. General:
1. Provide new wires and cables manufactured within 1 year of the date of delivery to the Site.
2. Permanently mark each wire and cable with the following at 24-inch intervals:
a. AWG size.
b. Voltage rating.
c. Insulation type.
d. UL symbol.
e. Month and year of manufacture.
f. Manufacturer's name.
3. Identify and mark wire and cable as specified in Section 16075 - Identification for Electrical Systems:
a. Use integral color insulation for No. 2 AWG and smaller wire. b. Wrap colored tape around cable larger than No. 2 AWG.
B. 600-volt class wire and cable:
1. Provide AWG or kcmil sizes as indicated on the Drawings or in the Conduit Schedules:
a. When not indicated on the Drawings, size wire as follows:
1) In accordance with the NEC:
a) Use 75 degree Celsius ampacity ratings.
b) Ampacity rating after all derating factors, equal to or greater than rating of the overcurrent device.
2) Provide No. 12 AWG minimum for power conductors.
3) Provide No. 14 AWG minimum for control conductors.
2. Provide Class B stranding in accordance with ASTM B8:
a. Provide Class C stranding where extra flexibility is required.
3. Insulation:
a. XHHW-2.
b. 90 degree Celsius rating.
C. 600-volt VFD cables:
1. Conductor:
a. Provide Class B stranding in accordance with ASTM B3 and B8. b. Copper conductor.
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2. Insulation:
a. Cross-linked Polyethylene, XLPE.
b. 90 degree Celsius rating.
c. UL 44 Type RHH/RHW-2 or XHHW-2.
d. 2,000 volts.
3. Ground:
a. Provide Class B compressed stranded bare copper in accordance with ASTM B3 and B8.
b. 3 symmetrically placed bare copper conductors in direct contact with shield.
c. Equivalent ground size 50 percent of the phase conductor size.
4. Filler:
a. Cable sizes 8 and 6 use polypropylene filler.
b. Other cable sizes use paper filler.
5. Metallic shield:
a. Overall 5 mil bare copper tape shield with 50 percent overlap.
6. Outer jacket:
a. UL 1277 Type PVC.
7. Cable tray rated, UL Type TC-ER.
D. Instrumentation class cable:
1. Type TC.
2. Suitable for use in wet locations.
3. Voltage rating: 600 volts.
4. Temperature rating:
a. 90 degree Celsius rating in dry locations.
b. 75 degree Celsius rating in wet locations.
5. Conductors:
a. Insulation:
1) Flame-retardant PVC, 15 mils nominal thickness, with nylon jacket 4 mils nominal thickness.
b. No. 16 AWG stranded and tinned.
c. Color code: ICEA Method 1:
1) Pair: Black and white.
2) Triad: Black, white and red.
3) Multiple pairs or triads:
a) Color-coded and numbered.
6. Drain wire:
a. No. 18 AWG.
b. Stranded, tinned.
7. Jacket:
a. Flame retardant, moisture and sunlight resistant PVC. b. Ripcord laid longitudinally under jacket to facilitate removal.
8. Shielding:
a. Individual pair/triad:
1) Minimum 1.35-mil double-faced aluminum foil-polyester tape overlapped to provide 100 percent coverage.
b. Multiple pair or triad shielding:
1) Group shield: Minimum 1.35-mil double-faced aluminum foil-polyester tape overlapped to provide 100 percent coverage.
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3) Cable shield: 2.35 mils double-faced aluminum and synthetic polymer backed tape overlapped to provide 100 percent coverage. c. All shielding to be in contact with the drain wire.
E. Network cables:
1. Copper Ethernet cable:
a. Provide copper Ethernet cable types as indicated in the Drawings and Specifications.
b. General requirements:
1) All cables shall meet the standards set by TIA-568.2-D and verified by third-party testing laboratory.
2) Conductors:
a) Four balanced twisted pairs.
(1) No. 22 to No. 24 AWG thermoplastic insulated solid copper conducts enclosed by a thermoplastic jacket. Copper clad aluminum is not allowed.
3) Insulation:
a) Non-Plenum: Polyolefin.
b) Plenum: Fluoropolymer.
4) Color coded per T568B.
5) Outer jacket with ripcord.
6) Shielding:
a) Provide F/UTP cables with drain wire for cables inside any equipment, enclosures, or raceway that also contains circuits exceeding 480 VAC and as indicated on the Drawings.
7) Electrical rating:
a) Equipment cables: 600 VAC.
b) Horizontal cables: 300 VAC.
8) Approvals and listings:
a) Meets any necessary NEC and NFPA requirements for each application.
b) Riser applications: CMR in accordance with UL 1666.
c) Plenum applications: CMP in accordance with NFPA 262. 9) Certification:
a) Provide Category 6 cables with NEMA WC 66/ICEA S-116-732 certification.
2.05 EQUIPMENT (NOT USED)
2.06 COMPONENTS (NOT USED)
2.07 ACCESSORIES
A. Wire ties:
1. One of the following or equal:
a. T&B, "Ty-Rap" cable ties.
b. Panduit, cable ties.
B. Wire markers:
1. As specified in Section 16075 - Identification for Electrical Systems.
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2.08 MIXES (NOT USED)
2.09 FABRICATION (NOT USED)
2.10 FINISHES (NOT USED)
2.11 SOURCE QUALITY CONTROL
A. Assembly and testing of cable shall comply with the applicable requirements of NEMA WC 70/ICEA S-95-658-1999.
B. Test Type XHHW-2 in accordance with the requirements of UL 44.
PART 3 EXECUTION
3.01 EXAMINATION (NOT USED)
3.02 PREPARATION (NOT USED)
3.03 INSTALLATION
A. As specified in Section 16050 - Common Work Results for Electrical.
B. Color-coding:
1. Color-coding shall be consistent throughout the facility.
2. The following color code shall be followed for all 240/120 volt and 208/120 volt systems:
a. Phase A: Black.
b. Phase B: Red.
c. Phase C: Blue.
d. Single phase system: Black for 1 hot leg, red for the other. e. Neutral: White.
f. High phase or wild leg: Orange.
g. Equipment ground: Green.
3. The following color code shall be followed for all 480/277 volt systems:
a. Phase A: Brown.
b. Phase B: Orange.
c. Phase C: Yellow.
d. Neutral: Gray.
e. Equipment ground: Green.
4. The following color code shall be followed for all 120 VAC control wiring:
a. Power: Red.
b. Neutral: White.
5. The following color code shall be followed for all general purpose DC control circuits:
a. Grounded conductors: White with blue stripe.
b. Ungrounded conductors: Blue.
6. Switch legs shall be violet. 3-way switch runners shall be pink.
7. Wires in intrinsically safe circuits shall be light blue.
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8. Wire colors shall be implemented in the following methods:
a. Wires manufactured of the desired color.
b. Continuously spiral wrap the first 6 inches of the wire from the termination point with colored tape:
1) Colored tape shall be wrapped to overlap 1/2 of the width of the tape.
C. Install conductors only after the conduit installation is complete, and all enclosures have been vacuumed clean, and the affected conduits have been swabbed clean and dry:
1. Install wires only in approved raceways.
2. Do not install wire:
a. In incomplete conduit runs.
b. Until after the concrete work and plastering is completed.
D. Properly coat wires and cables with pulling compound before pulling into conduits:
1. For all No. 4 AWG and larger, use an approved wire-pulling lubricant while cable is being installed in conduit:
a. Ideal Products.
b. Polywater Products.
c. 3M Products.
d. Greenlee Products.
e. Or equal as recommended by cable manufacturer.
f. Do not use oil, grease, or similar substances.
E. Cable pulling:
1. Prevent mechanical damage to conductors during installation.
2. For cables No. 1 AWG and smaller, install cables by hand.
3. For cables larger than No. 1 AWG, power pulling winches may be used if they have cable tension monitoring equipment.
4. Provide documentation that maximum cable pulling tension was no more than 75 percent of the maximum recommended level as published by the cable manufacturer. If exceeded, the Engineer may, at his discretion, require replacement of the cable.
5. Ensure cable pulling crews have all calculations and cable pulling limitations while pulling cable.
6. Make splices or add a junction box or pullbox where required to prevent cable pulling tension or sidewall pressure from exceeding 75 percent of manufacturer’s recommendation for the specified cable size:
a. Make splices in manholes or pull boxes only.
b. Leave sufficient slack to make proper connections.
F. Use smooth-rolling sheaves and rollers when pulling cable into cable tray to keep pulling tension and bending radius within manufacturer’s recommendations.
G. Install and terminate all wire in accordance with manufacturer's recommendations.
H. Neatly arrange and lace conductors in all switchboards, panelboards, pull boxes, and terminal cabinets by means of wire ties:
1. Do not lace wires in gutter or panel channel.
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2. Install all wire ties with a flush cutting wire tie installation tool:
a. Use a tool with an adjustable tension setting.
3. Do not leave sharp edges on wire ties.
I. Terminate stranded conductors on equipment box lugs such that all conductor strands are confined within the lug:
1. Use ring type lugs if box lugs are not available on the equipment.
J. Lighting circuits:
1. Each circuit shall have a dedicated neutral.
K. Splices:
1. Provide continuous circuits from origin to termination whenever possible:
a. Obtain Engineer’s approval prior to making any splices.
2. Lighting and receptacle circuit conductors may be spliced without prior approval from the Engineer.
3. Where splices are necessary because of extremely long wire or cable lengths that exceed standard manufactured lengths:
a. Splice box NEMA rating requirements as specified in Section 16050 - Common Work Results for Electrical.
b. Make splices in labeled junction boxes for power conductors. c. Make splices for control and instrument conductors in terminal boxes:
1) Provide terminal boards with setscrew pressure connectors, with spade or ring lug connectors.
4. Power and control conductors routed in common raceways may be spliced in common junction boxes.
5. Clearly label junction and terminal boxes containing splices with the word "SPLICE LOCATED WITHIN”.
6. Leave sufficient slack at junction boxes and termination boxes to make proper splices and connections. Do not pull splices into conduits.
7. Install splices with compression type butt splices and insulate using a heat-shrink sleeve:
a. In NEMA Type 4 or NEMA Type 4X areas, provide heat-shrink sleeves that are listed for submersible applications.
8. Splices in below grade pull boxes, in any box subject to flooding, and in wet areas shall be made waterproof using:
a. A heat shrink insulating system listed for submersible applications. b. Or an epoxy resin splicing kit.
L. Apply wire markers to all wires at each end after being installed in the conduit and before meg-ohm testing and termination.
M. Instrumentation class cable:
1. Install instrumentation class cables in separate raceway systems from power cables:
a. Install instrument cable in metallic conduit within non-dedicated manholes or pull boxes.
b. Install cable without splices between instruments or between field devices and instrument enclosures or panels.
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2. Do not make intermediate terminations, except in designated terminal boxes as indicated on the Drawings.
3. Shield grounding requirements as specified in Section 16060 - Grounding and Bonding.
N. Copper Ethernet cables:
1. In accordance with TIA-568.2-D.
2. Pathways:
a. For initial installation, the maximum fill capacity for pathways (i.e., conduit, raceways, trays, baskets) is 40 percent. The maximum fill capacity of 60 percent is allowed to accommodate future additions after initial installation.
b. Conduit should be run in the most direct route possible with no more than two 90 degree bends between pull boxes and serve no more than 3 outlet boxes.
3. Cable bend radius:
a. Proper cable bend radius control must be maintained throughout the pathways. The bend radius needs to be at a minimum 10 times the cable diameter.
4. Cable pulling:
a. Provide cable pulling swivel system to prevent winding and tangling of rope and cables during pull.
b. The maximum pulling tension is not to exceed manufacturer recommendations. Cable installation should not in any way deform the cable jacket.
c. Do not install bruised, kinked, scored, deformed, or abraded cable. Do not splice cable between termination, tap, or junction points. Remove and discard cable if damaged during installation and replace it with new cable.
5. Cable management:
a. Organize and manage cables for quick and easy moves, adds and changes.
6. Cable termination:
a. Install equipment outlet connector hardware (e.g., RJ45, M12, etc.), and connect to field equipment outlet (e.g., instrument, VFD, actuator, etc.). b. Use shielded connectors as required by the installation. c. Coordinate cable termination at copper patch panels with ICSC and General Contractor.
7. Testing:
a. Copper Ethernet cable testing requirements as specified in Section 16950 - Field Electrical Acceptance Tests.
8. Separation from EMI sources:
a. Comply with TIA-569-B recommendations for separating unshielded copper voice and data communication cable from potential EMI sources, including electrical power lines and equipment.
b. Separation between open communications cables or cables in nonmetallic raceways and unshielded power conductors and electrical equipment shall be as follows:
1) Electrical Equipment Rating Less Than 2 kVA: A minimum of 5 inches.
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3) Electrical Equipment Rating More Than 5 kVA: A minimum of 24 inches.
c. Separation between communications cables in grounded metallic raceways and unshielded power lines or electrical equipment shall be as follows:
1) Electrical Equipment Rating Less Than 2 kVA: A minimum of 2-1/2 inches.
2) Electrical Equipment Rating between 2 and 5 kVA: A minimum of 6 inches.
3) Electrical Equipment Rating More Than 5 kVA: A minimum of 12 inches.
d. Separation between communications cables in grounded metallic raceways and power lines and electrical equipment located in grounded metallic conduits or enclosures shall be as follows:
1) Electrical Equipment Rating Less Than 2 kVA: No requirement. 2) Electrical Equipment Rating between 2 and 5 kVA: A minimum of 3 inches.
3) Electrical Equipment Rating More Than 5 kVA: A minimum of 6 inches.
e. Separation between Communications Cables and Electrical Motors and Transformers, 5 kVA or HP and Larger: A minimum of 48 inches.
O. Signal cable:
1. Separate and isolate electrical signal cables from sources of electrical noise and power cables by minimum 12 inches.
P. Wiring allowances:
1. Equipment locations may vary slightly from the drawings. Include an allowance for necessary conductors and terminations for motorized equipment, electrical outlets, fixtures, communication outlets, instruments, and devices within 10 linear feet of locations indicated on the Drawings.
2. Locations for pull boxes, manholes, and duct banks may vary slightly from the drawings. Include an allowance for necessary conductors and related materials to provide conductors to all pull boxes, manholes and duct banks within 20 linear feet of locations indicated on the Drawings.
3.04 ERECTION, INSTALLATION, APPLICATION, CONSTRUCTION (NOT USED)
3.05 REPAIR/RESTORATION (NOT USED)
3.06 RE-INSTALLATION (NOT USED)
3.07 COMMISSIONING
A. As specified in Section 01756 - Commissioning.
3.08 FIELD QUALITY CONTROL (NOT USED)
3.09 ADJUSTING (NOT USED)
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3.10 CLEANING (NOT USED)
3.11 PROTECTION (NOT USED)
3.12 SCHEDULES (NOT USED)
END OF SECTION
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FIBER OPTIC CABLE AND APPURTENANCES
PART 1 GENERAL
1.01 SUMMARY
A. Section includes:
1. Fiber optic cable.
2. Fiber splices and terminations.
3. Accessories.
1.02 REFERENCES
A. Abbreviations:
1. N/Cm: Newtons per centimeter.
2. OTLS: Optical Loss Test Set (Tier 1 test).
3. OTDR: Optical Time Domain Reflectometer (Tier 2 test).
B. Definitions:
1. As specified in Section 17050 - Common Work Results for Process Control and Instrumentation Systems.
C. Standards:
1. Bellcore Standards:
a. GR-409 - Generic Requirements for Indoor Fiber.
2. Electronic Industry Association (EIA):
a. FOTP-25 - Impact testing of Fiber Optic Cables and Cable Assemblies. b. FOTP-33 - Fiber Optic Cable Tensile Loading and Bending Test. c. FOTP-41 - Compressive Loading Resistance of Fiber Optic Cables. d. FOTP-81 - Compound Flow (Drip) Test for Filled Fiber Optic Cable. e. FOTP-104 - Fiber Optic Cable Cyclic Flexing Test.
f. FOTP-181 - Lightning Damage Susceptibility Test for Fiber Optic Cables with Metallic Components.
3. Insulated Cable Engineer’s Association (ICEA):
a. S-83-596 - Optic Fiber Premises Distribution Cables. b. S-87-640 - Optic Fiber Outside Plant Communications Cable. c. S-104-696 - Indoor-Outdoor Optic Fiber Cable.
4. TIA/EIA Standards:
a. 598 - Optical Fiber Cable Color Coding.
b. 11801 - Information technology - Generic cabling for customer premises.
5. Underwriters Laboratories, Inc. (UL):
a. 1666 - Test for Flame Propagation Height of Electrical and Optical-Fiber Cables Installed Vertically in Shafts.
b. 1685 - Vertical-Tray Fire-Propagation and Smoke-Release Test for Electrical and Optical-Fiber Cables.
1.03 DELEGATED DESIGN (NOT USED)
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1.04 SUBMITTALS
A. Furnish submittals as specified in Section 01330 - Submittal Procedures.
B. Product data:
1. Complete manufacturer’s brochures that identify materials and options.
2. Completed data sheets, including catalog number and source for determining catalog number.
3. Manufacturer’s installation instructions.
4. Include the following:
a. Manufacturer’s data on testing equipment used on this project. b. Manufacturer’s specifications and data sheets for all fiber types. c. Manufacturer’s specifications and data sheets for all connectors, bulkheads, splicing kits, breakout devices, and appurtenances used in connecting and terminating the fiber spans.
5. Catalog data on all testing devices proposed for use plus certifications of accuracy, calibration, and traceability to standards of the NIST.
6. Manufacturer’s test procedures and quality assurance procedures:
a. After review, the Engineer may require that additional tests be performed before installation.
C. Shop drawings:
1. Interconnection cabling diagrams for the complete system including every fiber in each cable.
2. Drawings indicating the locations of all pull boxes including pull box identifiers and lengths.
3. Submit optical power budget calculations for all fiber segments. Include the following:
a. Minimum transmit power of active devices.
b. Minimum receive sensitivity.
c. Available power, in dBm.
d. Loss for each segment in dBm, including cable attenuation and connector losses. Use manufacturer’s data for cable attenuation, at the wavelength to be used. Assume 0.5 dB per connector.
e. Demonstrate that remaining power budget at each receiver is equal to or greater than 3.0 dBm.
D. Installation instructions:
1. Submit a cable pulling and splicing work plan that includes the following:
a. Pull tension calculations.
b. Detailed description of pull operation methods for all conduit runs. c. Tools and equipment to be used for cable installation and testing. d. Physical location of equipment setup and type.
e. Exact locations of splice points.
f. Safety and manual assist cable-pulling operations.
g. Detailed schedule for pulling and testing cables.
h. The name and qualifications of the supervisory personnel directly responsible for the installation of the conduit system. i. Sample fiber optic cable test sheets.
j. All signed test sheet results.
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pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/16125 (BidSetFinal) E. Commissioning submittals:
1. As specified in Section 01756 - Commissioning, including the following:
a. Manufacturer’s representative qualifications.
b. Certificates:
1) Requirements as specified in this Section.
c. Test Plans:
1) Test requirements as specified in this Section.
d. Test Reports.
e. Manufacturer’s representatives field notes and data.
F. Operation and maintenance manuals:
1. Compile completed test reports, instruction manuals, and manufacturer’s information into the operating manuals and submitted in accordance with Section 01782 - Operation and Maintenance Manuals.
G. Test reports:
1. Submit the results of all specified tests to the Engineer.
2. Submit 3 copies of all test reports showing the results of all tests specified herein or in Section 16950 - Field Electrical Acceptance Tests:
a. Test forms shall include the following information at a minimum:
1) Test type.
2) Test location.
3) Test date.
4) Wavelength.
5) Index of refraction.
6) Cable identification.
7) Fiber type.
8) Fiber number.
9) Fiber color.
10) Result of the value of the tested parameter.
3. Furnish hard copy and electronic copy for all OTDR traces.
4. Submit certification that the fiber optic cable has passed each testing stage:
a. Submit separate documentation for each testing stage result.
H. Record documents:
1. Furnish updated electrical drawings, network diagrams, and fiber cable block diagrams at the end of construction and submit as Record Drawings.
I. Calculations:
1. Cable pulling calculations for all conduit runs:
a. Indicate on the submittal any additional pull boxes that are required, including pull box identifiers and a written description of the location.
1.05 QUALITY ASSURANCE
A. Furnish all cable and appurtenances manufactured within 1 year of installation.
B. Proof test all optical fibers by the fiber manufacturer at a minimum load of 50 kpsi.
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1. Include with each cable reel the attenuation of each fiber.
D. Provide information on at least 5 successful fiber optic cable installations of comparable size and complexity in the past 3 years with name, address, and telephone number of facility owner, name of project with completion date, and type of conduit system and length of cable pulled.
1.06 DELIVERY, STORAGE, AND HANDLING
A. Package the cable for shipment on wooden reels:
1. Seal both ends of the cable to prevent the ingress of moisture.
2. Place fiber cable assemblies on reels such that both cable ends are available for testing.
3. Weatherproof cable reel markings shall include the following:
a. Manufacturer.
b. Date of manufacture.
c. Shipping date.
d. Cable identification.
e. Cable configuration/fiber count.
f. Cable length.
g. Gross weight.
h. Cable test date.
i. Handling instructions.
j. Direction to unreel.
1.07 PROJECT OR SITE CONDITIONS
A. As specified in Section 01850 - Design Criteria.
1.08 ADMINISTRATIVE REQUIREMENTS
A. Sequencing:
1. Submit a cable pulling and splicing work plan a minimum of 45 days before the planned initiation of cable pulling. The cable pulling and splicing work plan must be approved a minimum of 15 days before pulling cable.
2. Testing sequence:
a. Perform testing of each fiber in each cable as follows:
1) At the factory before shipment.
2) At the project site upon delivery.
3) Submit copies of the test results to the Engineer within 5 days after the delivery to the site.
4) After installation, before breakout and terminations. 5) After installation is complete.
b. Submit test reports following each set of tests as specified in this Section.
B. Scheduling:
1. Schedule Engineer, 5 days before installation, to witness all cable installations.
2. Notify the Engineer and Owner a minimum of 15 days before post-installation testing.
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1.09 WARRANTY
A. As specified in Section 01783 - Warranties and Bonds.
PART 2 PRODUCTS
2.01 GENERAL (NOT USED)
A. Furnish a complete fiber optic network as indicated on the Drawings.
2.02 DESIGN AND PERFORMANCE CRITERIA
A. Install all fiber optic system components in accordance with the recommendations of the manufacturer.
2.03 MANUFACTURERS
A. Acceptable manufacturers are indicated with each component type as listed in the remainder of this specification.
2.04 MATERIALS (NOT USED)
2.05 MANUFACTURED UNITS
A. General fiber cable requirements:
1. Suitable for the installed environment.
2. Color-coded fibers according to EIA/TIA-598.
3. Color-coded buffer tubes according to EIA/TIA-598.
4. Furnish buffer tubes of a single layer nylon construction or of a material with similar mechanical performance.
5. Fillers may be included in the cable core to lend symmetry to the cable cross-section where needed.
6. Apply binders with sufficient tension to secure the buffer tubes to the central member without crushing the buffer tubes:
a. Provide binders that are:
1) Non-hygroscopic.
2) Non-wicking (or rendered so by the flooding compound). 3) Dielectric with low shrinkage.
7. Provide a minimum of 1 ripcord under the cable sheath.
8. Provide the high tensile strength Aramid yarns, Kevlar, and/or fiberglass helically stranded evenly around the cable core:
a. No metallic elements whatsoever are allowed in non-armored cable.
9. The jacket or sheath shall be free of holes, splits, and blisters.
10. Mark the jacket or sheath with:
a. Manufacturer's name.
b. The words “Optical Cable”.
c. Year of manufacture.
d. Sequential meter marks.
e. Repeat markings every 1-meter.
f. The actual length of the cable to be within 1 percent of the length marking.
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pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/16125 (BidSetFinal) g. The marking must be in a contrasting color to the cable jacket. h. The height of the marking:
1) Approximately 2.5 millimeters.
11. The shipping, storage, and operating temperature range of the cable shall be -40 degrees Celsius to +70 degrees Celsius.
12. General performance characteristics:
a. The rated tensile load of the cables:
1) Indoor/outdoor:
a) Short term: 1,330 N.
b) Long term: 400 N.
b. Non-armored fiber optic cables: Compressive load withstand of 220 N/cm applied uniformly over the length of the cable.
c. Armored fiber optic cables: Compressive load withstand of 440 N/cm applied uniformly over the length of the cable.
d. The average increase in attenuation for the fibers: Less than or equal to
0.10 dB at 1,550 nm for a cable subjected to this load:
1) With no measurable increase in attenuation after load removal. e. Test in accordance with EIA FOTP-41 except that the load must be applied at the rate of 3 millimeters to 20 millimeters per minute and maintained for 10 minutes.
f. Capable of withstanding 25 cycles of mechanical flexing at a rate of 30 within 1 cycles/minute.
g. The average increase in attenuation for the fibers: Less than or equal to
0.10 dB at 1,550 nm at the completion of the test.
h. For armored cables, any visible cracks causing separation of the armor and propagating more than 5 millimeters constitutes failure. i. Outer cable jacket cracking or splitting observed under 10X times magnification, constitutes failure.
B. Indoor/outdoor cable:
1. Cable construction:
a. General:
1) Cable type: Indoor/Outdoor - Flame retardant, low smoke, zero halogen, UV resistant.
2) Fiber count: As indicated on the Drawings.
3) Fiber type: As indicated on the Drawings.
4) Buffer tube: Loose tube.
5) Armoring: None.
6) Waterproofing: Water blocking layer.
7) Approvals and listings: UL 1666 and UL 1685.
8) Design and test criteria: In accordance with ICEA S-104-696. b. Testing:
1) All fibers in the cable:
a) Proof test of 100 kpsi.
b) Each optical fiber: Bellcore GR-409 strip force testing. c) No gaps are allowed between the coating material and the buffer material visible under a 50-power microscope.
c. Outer jacket material:
1) Linear low-density polyethylene.
2) Meet all requirements of the NEC for use in all indoor/outdoor areas (excluding plenums) without being enclosed in conduit.
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C. Multimode fibers:
1. All fibers in the cable must be usable fibers and meet required specifications.
2. Each optical fiber shall consist of a doped silica core surrounded by a concentric silica cladding.
3. Multimode fiber characteristics:
a. Category: OM4 compliant with ISO/IEC 11801.
b. Jacket color: Aqua.
D. Indoor/outdoor:
1. Tight buffer:
a. Corning Cable Systems, Freedm® One.
b. Optical Cable Corporation, DX-Series.
c. CommScope, LazrSPEED/TerraSPEED.
2.06 EQUIPMENT (NOT USED)
2.07 COMPONENTS (NOT USED)
2.08 ACCESSORIES
A. Patch cords:
1. General:
a. Connector types to match supplied equipment and the patch panel terminations.
b. Maximum length of patch cords: 25 feet.
c. Provide 2 spare patch cords (or 1 duplex patch cord) of each type used at each PLC or network cabinet.
d. Factory assembled and optically tested.
e. Provide mode-conditioning cords for multimode fibers operating at 1,310 nm.
2. Manufacturers: One of the following or equal:
a. CommScope.
b. Corning Cable Systems.
B. Fiber connectors:
1. As specified in Section 17733 - Control Systems: Network Materials and Equipment.
C. Fiber optic identification/warning tags:
1. Black letters on orange or yellow background.
2. UV resistant polyethylene or other suitable material:
a. Manufacturers: The following or equal:
1) Almetek.
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3.01 EXAMINATION
A. Verify the condition of the conduit system before installation of the fiber optic cable or inner duct.
B. Pass a test mandrel through all fiber optic conduits prior to pulling fiber or installing inner duct.
1. Run the mandrel in both directions.
C. Examine all materials and equipment before installation and verify they are free from physical damage and defects.
3.02 PREPARATION
A. Equipment support and anchoring to structures:
1. Prepare anchor setting template(s) and use to position anchors during construction of supporting structures.
2. Install anchors of type and material indicated on approved anchoring designs.
3. Install anchors with embedment indicated on approved anchoring designs.
B. Before fiber splicing terminating or testing activities, verify sufficient workspace is available to perform the activity without interferences from other trades.
C. Pre-installation test:
1. Upon arrival at the site:
a. Inspect the cable and reel for damage.
b. Test all fibers with an optical time domain reflectometer (OTDR) for fiber integrity.
c. Verify that the fiber lengths are consistent with the cable manufacture. d. Verify that all traces yield no point discontinuities.
2. Complete test sequence and obtain approval from the Engineer of submitted test results before cable installation.
3.03 INSTALLATION
A. Install fiber optic patch cords in open network trays or in dedicated conduits no longer than 25 feet in length.
B. Install fiber optic cable in continuous lengths without intermediate splices, except where approved by the Engineer.
C. Cable installation:
1. Properly attach the fiber optic cable’s strength elements to a 600-pound breakaway swivel containing tension or shear pins using Kellums pulling grips that are a minimum of 18 inches long.
2. Certify that cable tensile limits do not exceed cable pull tension and bend limits using tension monitoring devices.
3. Leave an extra loop of fiber optic cable in each pull box.
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4. Conform with the cable manufacturer's specifications, practices, and the following requirements:
a. When power equipment is used to install fiber optic cables, use low speeds and do not exceed a rate of 30 meters per minute. b. Do not exceed the tensile and bending limitation for fiber optic cables under any circumstances.
c. Use large diameter wheels, pulling sheaves, and cable guides to maintain the specified bending radius.
d. Use commercial dynamometers or load cells to monitor pulling tension. e. A nonfreezing type of swivel inserted between the pulling line and cable pulling grip to prevent twisting under strain.
f. All cable to be installed using a breakaway swivel.
5. Apply to all conduits a lubricant at each conduit ingress and egress location during the pull operation:
a. Pour or pump lubricant into the end of the conduit at the feed location at a nominal application rate of 3 gallons per 1,000 feet of cable. b. If the conduit is open at intermediate locations, then apply the appropriate proportion of lubricant at each opening.
c. Continuously lubricate the cable as it is being pulled by pouring or pumping the lubricant into the conduit at the feed location and at each intermediate location.
d. Station workers at each intermediate location as required. e. Remove all excess lubricant that has collected.
f. Remove and clean the surrounding area after cable installation.
6. Install using a hydraulic capstan or winch equipped with a recording running line dynamometer graph which measures and records pulling tensions:
a. Use pulling equipment with slip-load capability to allow the winch to maintain a constant pulling force without taking up the winch line. b. Use pulling equipment equipped with a hydraulic bypass set so that a maximum tension of 600 pounds is not exceeded.
c. Use only equipment designed to prevent a preset pulling tension from being exceeded.
d. Fiber optic cable manufacturer to provide the pulling tension setpoint. e. If during the pulling operation excessive tension is detected, cease all operations and notify the Engineer.
7. Position the cable reel at the feed point in alignment with the raceway and in such a position that the cable can be passed from the top of the reel in a long, smooth bend into the raceway system:
a. The use of a cable feeder is required, unless the cable is hand-pulled.
8. Supply all bull wheels, blocks, split wheels, cable feeders, and necessary equipment required to provide a clean and safe operation:
a. The cable shall not be allowed to travel over any wheel or block that has a radius less than the minimum radius allowed by the cable manufacturer.
9. Minimize the use of snatch blocks and rollers to guide the cable into the conduit at the feed point:
a. Slack feed by hand the cable into the feed point and raceway without the use of rollers.
10. Tend the cable reel at all times and turn by hand to provide the required cable slack:
a. Under no circumstances shall the cable tension be allowed to turn the cable reel.
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11. Use a rim roller, with a wheel radius greater than the minimum cable bending radius placed at the manhole or vault opening to prevent the cable from dragging on the manhole rim or steps.
12. Perform a continuous thorough visual inspection for flaws, breaks, and abrasions in the cable sheath as the cable leaves the reel, and maintain a slow pulling speed to permit this inspection.
13. Damage to the sheath or finish of the cable is cause for rejecting the cable:
a. Replace any cable damaged in any way during installation.
14. If the cable becomes damaged during installation, stop operations and notify the Engineer immediately:
a. Engineer to determine whether to replace the entire reel of cable or to install a termination panel to eliminate the damaged section.
15. Document all pulls by a graph which is annotated with the following information:
a. Reel number.
b. Pull point ID.
c. Date and time.
d. Explanations for abnormalities in readings or interruptions. e. Sign-off by Contractor and Engineer.
16. Under no conditions shall the fiber optic cable be left exposed or unattended.
D. Provide inner duct in fiber optic conduits as indicated on the Drawings, cable schedule, and as specified in Section 16130 - Conduits:
1. Provide a pull rope in each unused inner duct.
E. After the cables are installed and spliced:
1. Rack the cables:
a. Loosely secure in racked position with wire ties.
b. Attach imprinted plastic-coated cloth identification/warning tags to each cable in at least 2 locations in each handhole/manhole.
F. Splices:
1. Provide field splices in a splice tray located in a waterproof splice enclosure:
a. Manufacturers: The following or equal:
1) Tyco/Raychem, FOSC style splice enclosure.
2. Loop the individual fibers a minimum of 1 full turn within the splice tray to avoid macro/micro bending.
3. After completion of cable terminations, neatly dress all cables.
4. Protect all splices with a thermal shrink sleeve.
5. Provide fusion type fiber optic cable splicing meeting the following requirements:
a. Joins multimode fibers.
b. Establishes a permanent fusion splice.
c. Waterproof.
d. Re-enterable, rearrangable, and reusable.
e. Splice loss less than 0.10 dB.
f. Protected by a splice enclosure.
6. Requirement for outdoor fiber splice enclosures:
a. Seal.
b. Bond.
c. Anchor.
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e. Stand-alone unit that does not require an outer enclosure. f. Provide for a maximum of 6 cable entries in a butt-end configuration. g. Used in aerial, underground, and direct buried applications.
7. Requirement for indoor fiber splice enclosures:
a. Anchor.
b. Protect fiber optic cable splices.
c. Stand-alone unit that does not require an outer enclosure. d. Suitable for the minimum number of splices at that location plus additional capacity for reconfigurations.
8. Re-splice any splice that has a loss greater than 0.10 dB.
9. Leave a minimum of 20 feet of fiber optic cable at each end of splice.
G. Terminations:
1. Terminate all fiber inside a patch panel:
a. Direct landing to a switch, router hub, or PLC will not be allowed.
2. Terminate outdoor cables using a breakout kit that seals the cable and provides physical protection for the fiber strands.
3. Terminate indoor cables using breakout kits with field installed terminators.
4. Labeling:
a. Permanently label all cable terminations. Use labels produced by a wire printer using pressure sensitive polyester labels.
b. Label patch panels as specified in Section 16075 - Identification for Electrical Systems.
3.04 COMMISSIONING
A. As specified in Section 01756 - Commissioning.
B. Source testing:
1. Before shipment and while on the shipping reel, test 100 percent of all fibers for attenuation:
a. Copies of the results shall be:
1) Maintained on file.
2) Attached to the cable reel in a waterproof pouch.
3) Submitted before the delivery of the cable to the job site to Engineer for approval.
2. Conduct the flex test in accordance with EIA FOTP-104 test condition I and III with a maximum sheave diameter of 20 times the cable OD.
3. Verify that the cable withstands 25 impact cycles with:
a. The average increase in attenuation for the fibers less than 0.20 dB at 1,550 nm.
b. No evidence of cracking or splitting.
c. Conduct the test in accordance with EIA FOTP-25.
4. Certify that the cable withstands a tensile load of 2,700 N (600 pounds):
a. Without exhibiting an average increase in attenuation of greater than
0.10 dB.
b. Test in accordance with EIA FOTP-33 using a maximum mandrel and sheave diameter of 560 millimeters.
c. Apply the load for 1 hour in Test Condition II.
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5. Certify that the cable withstands a simulated lightning strike:
a. Peak value of the current pulse greater than 105kA.
b. Use a test current with a damped oscillatory maximum time-to-peak value of 15 µs (which corresponds to a minimum frequency of 16.7 kHz) and a maximum frequency of 30 kHz.
c. The time to half-value of the waveform envelope 40 to 70 µs. d. Conduct the test in accordance with the EIA FOTP-181. e. In addition to the analysis criterion set forth in EIA FOTP-181, the integrity of the buffer tubes (or analogous loose tube, i.e., core tube) and strength members must be intact after removal of the cable specimens from the test box.
6. Furnish test reports and Manufacturer’s Certificate of Source Testing.
C. Installation Verification:
1. Furnish Manufacturer’s Certificate of Installation Verification.
D. Functional Testing:
1. Conduct post-installation tests of the fiber optic system as specified in Section 16950 - Field Electrical Acceptance Tests.
3.05 FIELD QUALITY CONTROL
A. Utilize personnel certified by the manufacturer with specific knowledge of the cable manufacturer's recommended installation procedures.
B. General:
1. All test results shall meet or exceed manufacturer specifications:
a. Test each fiber of each cable for breaks, abnormalities, and overall attenuation characteristics.
2. Pre-installation tests and post-installation tests to be witnessed and signed off by Engineer and Owner.
3. Perform OLTS test with equipment capable and calibrated to show anomalies of 0.1 dB as a minimum:
a. Test multimode fibers at 850 nm and 1,300 nm.
4. Perform OTDR tests on fiber cables less than 100 meters with the aid of a launch cable:
a. Adjust OTDR pulse width settings to a maximum setting of 1/1,000th of the cable length or 10 nanoseconds.
C. Manufacturer’s field service:
1. Provide the services of a certified manufacturer's engineering representative for the equipment specified in this Section at the jobsite for the frequency and minimum duration (travel time excluded) as specified below to perform the following services:
a. One 8-hour day for inspection, assistance during installation and alignment, and certification of proper installation:
1) Submit a certificate of installation.
b. One 8-hour-day for assistance and witnessing of system testing and any required troubleshooting.
3.06 ADJUSTING (NOT USED)
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3.07 CLEANING
A. Clean all fiber optic connectors after termination and before testing. After cleaning, cover all un-terminated connectors with a protective boot.
B. At the completion of construction, touch up the finish on all fiber patch panels and enclosures.
3.08 PROTECTION
A. Protect the fiber system from physical damage and the encroachment of dust, before, during, and after installation.
3.09 SCHEDULES (NOT USED)
END OF SECTION
Conduits
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CONDUITS
PART 1 GENERAL
1.01 SUMMARY
A. Section includes:
1. Metallic conduits.
2. Nonmetallic conduits.
3. Conduit bodies.
4. Conduit fittings and accessories.
5. Conduit installation.
1.02 REFERENCES
A. As specified in Section 16050 - Common Work Results for Electrical.
B. American National Standards Institute (ANSI):
1. C80.1 - Electrical Rigid Steel Conduit.
C. National Electrical Manufacturer’s Association (NEMA):
1. RN-1 - Polyvinyl Chloride (PVC) Externally Coated Galvanized Rigid Steel Conduit and Intermediate Steel Conduit.
2. TC2 - Electrical Polyvinyl Chloride (PVC) Conduit.
3. TC3 - Polyvinyl Chloride (PVC) Fittings for Use with Rigid PVC Conduit and Tubing.
D. Underwriters Laboratories (UL):
1. 1 - Standard for Flexible Metal Conduit.
2. 6 - Standard for Electrical Rigid Metal Conduit - Steel.
3. 360 - Standard for Liquidtight Flexible Steel Conduit.
4. 651 - Standard for Schedule 40, 80, Type EB and A Rigid PVC Conduit and Fittings.
5. 1203 –Standard for Explosion-Proof and Dust-Ignition-Proof Electrical Equipment for Use in Hazardous (Classified) Locations.
6. 1660 - Standard for Liquidtight Flexible Nonmetallic Conduit.
1.03 DEFINITIONS
A. As specified in Section 16050 - Common Work Results for Electrical.
B. Specific definitions and abbreviations:
1. Conduit bodies: A separate portion of a conduit system that provides access through a removable cover to the interior of the system at a junction of 2 or more conduit sections. Includes, but not limited to, Shapes C, E, LB, T, X, etc.
2. Conduit fitting: An accessory that primarily serves a mechanical purpose.
Includes, but not limited to, bushings, locknuts, hubs, couplings, reducers, etc.
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3. GRC: Galvanized rigid steel conduit.
4. PCS: Polyvinyl chloride (PVC) coated rigid steel conduit.
5. PVC: Polyvinyl chloride rigid nonmetallic conduit.
6. SLT: Sealtight-liquidtight flexible conduit.
7. NPT: National pipe thread.
1.04 SUBMITTALS
A. Furnish submittals as specified in Section 01330 - Submittal Procedures.
B. Product data:
1. Furnish complete manufacturer’s catalog sheets for every type and size of conduit, fitting, conduit body, and accessories to be used on the Project.
2. Furnish complete manufacturer’s recommended special tools to be used for installation if required.
3. Certified test results for PVC-coated metallic conduit showing the adhesive bond is stronger than the tensile strength of the PVC.
C. Shop drawings:
1. Furnish conduit routing plans for conduits before the installation of any conduit.
2. Detail the intended routing of each conduit, conduit material and include supporting methods.
3. Number conduits in accordance with the Contract Documents. a. Provide conduit labels as specified in Section 16075 - Identification for Electrical Systems.
D. Certifications:
1. Furnish PVC-coated conduit manufacturer’s valid, unexpired certification for each installer.
E. Record Documents:
1. Incorporate all changes in conduit routing on electrical plan drawings.
2. Dimension underground and concealed conduits from building lines.
3. Furnish hard copy drawings.
1.05 QUALITY ASSURANCE
A. All conduits, conduit bodies, and fittings shall be UL listed and labeled.
B. Every installer of PVC-coated metallic conduit shall be certified by the manufacturer for installation of the conduit, and be able to present a valid, unexpired installer certification card prior to installation beginning.
1.06 DELIVERY, STORAGE, AND HANDLING
A. Do not expose non-metallic conduit to direct sunlight.
B. Do not store conduit in direct contact with the ground.
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1.07 PROJECT OR SITE CONDITIONS
A. As specified in Section 01850 - Design Criteria.
1.08 SEQUENCING
A. Before installing any conduit or locating any device box:
1. Examine the complete set of Drawings and Specifications, and all applicable shop drawings.
2. Verify all dimensions and space requirements and make any minor adjustments to the conduit system as required to avoid conflicts with the building structure, other equipment, or the work of other trades.
B. Duct bank construction and direct buried conduit installation have a prerequisite of fulfilling all aspects of Section 02280 - Subsurface Utility Engineering.
C. Before performing any trenching, the following prerequisites must be met for each underground conduit routing:
1. Review of existing civil record drawings for recorded underground utilities.
2. Existing underground utility horizontal and vertical location by at least 1 of the following methods:
a. Soft excavation.
b. Local utility location service, CALL BEFORE YOU DIG or equal.
3. Protection of any discovered existing underground utility shall remain intact until the nearby duct bank installation is complete.
1.09 SCHEDULING (NOT USED)
1.10 WARRANTY
A. As specified in Section 01783 - Warranties and Bonds.
1.11 SYSTEM START-UP (NOT USED)
1.12 OWNER’S INSTRUCTIONS (NOT USED)
1.13 MAINTENANCE (NOT USED)
PART 2 PRODUCTS
2.01 MANUFACTURERS
A. Galvanized rigid steel conduit:
1. One of the following or equal:
a. Western Tube and Conduit.
b. Allied Tube and Conduit.
c. Wheatland Tube Co.
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pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/16130 (BidSetFinal) B. PVC-coated rigid steel conduit:
1. One of the following or equal:
a. Robroy Ind.
b. Ocal, Inc.
c. Calbond.
d. Allied.
e. NEC, Inc. BlackGuard.
C. Sealtight-liquidtight flexible conduit:
1. One of the following or equal:
a. Southwire.
b. AFC Cable Systems.
c. Electri-Flex Co.
d. Anaconda.
D. Rigid nonmetallic PVC conduit:
1. One of the following or equal:
a. Carlon.
b. Cantex.
c. Triangle Conduit and Cable.
E. Conduit bodies:
1. One of the following or equal:
a. Crouse-Hinds.
b. Appleton.
c. O-Z/Gedney.
d. Ocal, Inc.
e. Robroy Ind.
f. Calbond.
g. Carlon.
F. Joint compound:
1. The following or equal:
a. Thomas & Betts.
G. Galvanized rigid steel conduit expansion fittings:
1. One of the following or equal:
a. Crouse-Hinds.
b. Appleton.
c. O-Z/Gedney.
H. PVC-coated rigid steel conduit expansion fittings:
1. One of the following or equal:
a. Ocal, Inc.
b. Robroy Ind.
c. NEC, Inc. BlackGuard.
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pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/16130 (BidSetFinal) I. Conduit sleeve:
1. One of the following or equal:
a. Crouse-Hinds.
b. Appleton.
c. O-Z/Gedney.
J. Conduit seals:
1. One of the following or equal:
a. Appleton.
b. Crouse-Hinds.
c. O-Z/Gedney.
K. Conduit hangers and supports:
1. As specified in Section 16070 - Hangers and Supports.
L. Conduit through wall and floor seals:
1. The following or equal:
a. O-Z/Gedney:
1) Type "WSK."
2) Type “CSM.”
2.02 SYSTEM DESCRIPTION
A. Provide conduits, conduit bodies, fittings, junction boxes, and all necessary components, whether or not indicated on the Drawings, as required, to install a complete electrical raceway system.
B. Provide location and protection of existing underground utilities, underground conduit trenching, conduit and backfill necessary for the complete installation of underground conduits.
2.03 EXISTING PRODUCTS (NOT USED)
2.04 MATERIALS (NOT USED)
2.05 MANUFACTURED UNITS (NOT USED)
2.06 EQUIPMENT (NOT USED)
2.07 COMPONENTS
A. GRC:
1. All threads: NPT standard conduit threads with a 3/4-inch taper per foot:
a. Running conduit threads are not acceptable.
2. Hot-dip galvanized inside and out:
a. Ensures complete coverage and heats the zinc and steel to a temperature that ensures the zinc alloys with the steel over the entire surface. b. Electro-galvanizing is not acceptable.
3. Manufactured in accordance with:
a. UL-6.
b. ANSI C80.1.
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1. The steel conduit, before PVC coating, shall be new, unused, hot-dip galvanized material, conforming to the requirements for Type GRC.
2. Coated conduit NEMA Standard RN-1:
a. The galvanized coating may not be disturbed or reduced in thickness during the cleaning and preparatory process.
3. Factory-bonded PVC jacket:
a. The exterior galvanized surfaces shall be coated with primer before PVC coating to ensure a bond between the zinc substrate and the PVC coating.
b. Nominal thickness of the exterior PVC coating shall be 0.040 inch except where part configuration or application of the piece dictates otherwise. c. PVC coating on conduits and associated fittings shall have no sags, blisters, lumps, or other surface defects and shall be free of holes and holidays.
d. The PVC adhesive bond on conduits and fittings shall be greater than the tensile strength of the PVC plastic coating:
1) Confirm bond with certified test results.
4. A urethane coating shall be uniformly and consistently applied to the interior of all conduits and fittings:
a. Nominal thickness of 0.002 inch.
b. Conduits having areas with thin or no coating are not acceptable. c. All threads shall be coated with urethane.
5. The PVC exterior and urethane interior coatings applied to the conduits shall afford sufficient flexibility to permit field bending without cracking or flaking at temperature above 30 degrees Fahrenheit (-1 degree Celsius).
6. PCS conduit bodies and fittings:
a. Malleable iron.
b. The conduit body, before PVC coating, shall be new, unused material and shall conform to appropriate UL standards.
c. The PVC coating on the outside of conduit bodies shall be 0.040-inch thick and have a series of ribs to protect the coating from tool damage during installation.
d. 0.002-inch interior urethane coating.
e. Utilize the PVC coating as an integral part of the gasket design. f. Stainless steel cover screw heads shall be encapsulated with plastic to ensure corrosion protection.
g. A PVC sleeve extending 1 conduit diameter or 2 inches, whichever is less, shall be formed at each female conduit opening.
1) The inside diameter of the sleeve shall be the same as the outside diameter of the conduit to be used.
2) The sleeve shall provide a vapor- and moisture resistant seal at every connection.
3) Fittings shall be Form 8 and supplied with plastic encapsulated stainless steel cover screws. Fittings shall be UL Type 4X. Fittings shall be from the same manufacturer as the conduit in order to maintain system continuity and warranty.
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1. Temperature rated for use in the ambient temperature at the installed location but not less than the following:
a. General purpose:
1) Temperature range: -20 degrees Celsius to +80 degrees Celsius. b. Oil-resistant:
1) Temperature range: -20 degrees Celsius to +60 degrees Celsius.
2. Sunlight-resistant, weatherproof, and watertight.
3. Manufactured from single strip steel, hot-dip galvanized on all 4 sides before conduit fabrication.
4. Strip steel spiral wound resulting in an interior that is smooth and clean for easy wire pulling.
5. Overall PVC jacket.
6. With integral copper ground wire, built in the core, in conduit trade sizes 1/2 inch through 1-1/4 inch.
D. PVC:
1. Extruded from virgin PVC compound:
a. Schedule 40 unless otherwise specified.
b. Schedule 80 extra-heavy wall where specified.
2. Rated for 90 degrees Celsius conductors or cable.
3. Rated for use in direct sunlight.
E. Conduit bodies:
1. Material consistent with conduit type:
a. Malleable iron bodies and covers when used with Type GRC. b. PVC bodies and covers when used with Type PVC.
c. PVC-coated malleable iron bodies and covers when used with Type PCS.
2. Conduit bodies to conform to Form 8, Mark 9, or Mogul design:
a. Mogul design conforming to NEC requirements for bending space for large conductors for conduit trade sizes of 1 inch and larger with conductors No. 4 AWG and larger, or where required for wire-bending space.
3. Gasketed covers attached to bodies with stainless steel screws secured to threaded holes in conduit body.
2.08 ACCESSORIES
A. Connectors and fittings:
1. Manufactured with compatible materials to the corresponding conduit.
B. Insulated throat metallic bushings:
1. Construction:
a. Malleable iron or zinc-plated steel when used with steel conduit. b. Positive metallic conduit end stop.
c. Integrally molded non-combustible phenolic-insulated surfaces rated at 150 degrees Celsius.
d. Use fully insulated bushings on nonmetallic conduit system made of high-impact 150 degrees Celsius rated non-combustible thermosetting phenolic.
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pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/16130 (BidSetFinal) C. Insulated grounding bushings:
1. Construction:
a. Malleable iron or steel, zinc-plated, with a positive metallic end stop. b. Integrally molded non-combustible phenolic-insulated surfaces rated at 150 degrees Celsius.
c. Tin-plated copper grounding saddle for use with copper or aluminum conductors.
D. Electrical unions (Erickson Couplings):
1. Construction:
a. Malleable iron for use with steel conduit.
b. PVC-coated malleable iron for use with PCS conduit.
c. Concrete tight, 3-piece construction.
d. Rated for Class I Division 1 Group D in hazardous areas.
E. SLT fittings:
1. Construction:
a. Malleable iron.
b. Furnished with locknut and sealing ring.
c. Liquidtight, raintight, oiltight.
d. Insulated throat.
e. Furnish as straight, 45-degree elbows, and 90-degree elbows. f. Designed to prevent sleeving:
1) Verify complete bonding of the raceway jacket to the plastic gasket seal.
g. Equipped with grounding device to provide ground continuity irrespective of raceway core construction. Grounding device, if inserted into raceway and directly in contact with conductors, shall have rolled-over edges for sizes under 5 inches.
h. Where terminated into a threadless opening using a threaded hub fitting, a suitable moisture-resistant/oil-resistant synthetic rubber gasket shall be provided between the outside of the box or enclosure and the fitting shoulder. Gasket shall be adequately protected by and permanently bonded to a metallic retainer.
2. Corrosion-resistant and outdoor SLT fittings:
a. Construction:
1) PVC-coated liquidtight fittings with a bonded 0.040-inch-thick PVC coating on the metal connector to form a seal around the SLT conduit.
2) Insulated throat and an integral sealing ring.
F. Hubs for threaded attachment of steel conduit to sheet metal enclosures:
1. Construction:
a. Insulated throat.
b. PVC-coated when used in corrosive areas.
c. Bonding locknut.
d. Recessed neoprene O-ring to ensure watertight and dusttight connector. e. 1/2-inch through 1-1/4-inch steel zinc electroplated. f. 1-1/2-inch through 6-inch malleable iron zinc plated.
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2. Usage:
a. All conduits in damp, wet, outdoor, and corrosive areas shall use threaded hubs for connections to sheet metal enclosures.
G. Sealing fittings:
1. Construction:
a. 40-percent wire fill capacity.
b. PVC-coated when used in corrosive areas.
c. PVC Coated Hazardous (Classified) Location fittings must be UL 1203 listed after the coating is applied and have a red metal tag attached to the fitting to signify compliance.
d. Malleable ductile iron with steel conduit.
e. Aluminum with aluminum conduit.
f. Type EYDX where drains are required.
g. Type EYSX where drains are not required.
h. UL 1203 listed for use in Class I, Division 1, Groups A, B, C, D; Class I, Division 2, Groups A, B, C, D; and Class II, Divisions 1 and 2, Groups E, F, and G.
2. Sealing compound:
a. Fiber filler and cement as recommended by the sealing fitting manufacturer.
b. Approved for the conditions and use.
1) Not affected by surrounding atmosphere or liquids.
c. Melting point shall be 200 degrees Fahrenheit minimum.
H. PVC fittings:
1. Materials:
a. All devices shall be made of PVC, using the same materials as used for Type PVC conduit.
b. All metal hardware shall be stainless steel.
I. Through wall and floor seals:
1. Materials:
a. Body: Casting of malleable or ductile iron with a hot-dip galvanized finish. a. Grommet: Neoprene.
b. Pressure rings: PVC-coated steel.
c. Disc material: PVC-coated steel.
J. Expansion/deflection couplings:
1. Use to compensate for movement in any directions between 2 conduit ends where they connect.
2. Shall allow movement of 3/4 inch from the normal in all directions.
3. Shall allow angular movement for a deflection of 30 degrees from normal in any direction.
4. Constructed to maintain electrical continuity of the conduit system.
5. Materials:
a. End couplings: Bronze or galvanized ductile iron.
b. Sleeve: Neoprene.
c. Bands: Stainless steel.
d. Bonding jumper: Tinned copper braid.
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pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/16130 (BidSetFinal) K. Expansion couplings:
1. Shall allow for expansion and contraction of conduit:
a. Permitting 8-inch movement, 4 inches in either direction.
2. Constructed to maintain electrical continuity of the conduit system.
3. Materials:
a. Head: Malleable or ductile iron.
b. Sleeve: Steel.
c. Insulating bushing: Phenolic.
d. Finish: Hot-dip galvanized.
e. PVC-coated steel when used with Type PCS.
L. Conduit markers:
1. As specified in Section 16075 - Identification for Electrical Systems.
2.09 MIXES (NOT USED)
2.10 FABRICATION (NOT USED)
2.11 FINISHES (NOT USED)
2.12 SOURCE QUALITY CONTROL (NOT USED)
PART 3 EXECUTION
3.01 EXAMINATION (NOT USED)
3.02 PREPARATION (NOT USED)
3.03 INSTALLATION
A. General:
1. Conduit routing:
a. The electrical drawings are diagrammatic in nature:
1) Install conduit runs as specified with schematic representation indicated on the Drawings and as specified.
2) Modify conduit runs to suit field conditions, as accepted by the Engineer:
a) Make changes in conduit locations that are consistent with the design intent but are dimensionally different, or routing to bypass obstructions.
b) Make changes in conduit routing due to the relocation of equipment.
c) Install conduits and equipment in such a manner as to avoid obstructions and to preserve headroom and keep openings and passageways clear.
3) Where the Drawings do not indicate the exact mounting and/or supporting method to be used, use materials and methods similar to the mounting details indicated on the Drawings.
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pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/16130 (BidSetFinal) 4) The electrical drawings do not indicate all required junction boxes and pull boxes:
a) Provide junction boxes and pull boxes to facilitate wire pulling as required:
(1) To meet cable manufacturer’s pulling tension requirements. (2) To limit total conduit bends between pull locations. b) Install junction boxes and pull boxes at locations acceptable to the Engineer.
b. The Contractor is responsible for any deviations in general location, conduit size, routing, or changes to the conduit schedule without the express written approval or direction by the Engineer:
1) The Engineer is the sole source in determining whether the change is constituted as a deviation:
2) Perform any changes resulting in additional conduits, or extra work from such deviations.
3) Incorporate any deviations on the Record Documents.
2. Use only tools recommended by the conduit manufacturer for assembling the conduit system.
3. Provide adequate clearances from high-temperature surfaces for all conduit runs. Provide minimum clearances as follows:
a. Clearance of 6 inches from surfaces 113 degrees Fahrenheit to 149 degrees Fahrenheit.
b. Clearance of 12 inches from surfaces greater than
149 degrees Fahrenheit.
c. Keep conduits at least 6 inches from the coverings on hot water and steam pipes, 18 inches from the coverings on flues and breechings, and 12 inches from fuel lines and gas lines.
d. Where it is necessary to route conduits close to high-temperature surfaces, provide a high-reflectance thermal barrier between the conduit and the surface.
4. Support conduit runs on water-bearing walls a minimum of 7/8-inch away from wall on an accepted preformed channel:
a. Do not run conduits within water-bearing walls unless otherwise indicated on the Drawings.
5. Do not install 1-inch or larger conduits in or through structural members unless approved by the Engineer.
6. Run conduits exposed to view parallel with or at right angles to structural members, walls, or lines of the building:
a. Install straight and true conduit runs with uniform and symmetrical elbows, offsets, and bends.
b. Make changes in direction with long radius bends or with conduit bodies.
7. Install conduits with total conduit bends between pull locations less than or equal to 270 degrees.
8. Route all exposed conduits to preserve headroom, access space and workspace, and to prevent tripping hazards and clearance problems:
a. Install conduit runs so that runs do not interfere with proper and safe operation of equipment and do not block or interfere with ingress or egress, including equipment-removal hatches.
b. Route conduits to avoid drains or other gravity lines. Where conflicts occur, relocate the conduit as required.
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9. Conduits may be run in concrete members or slabs with permission of the Engineer or as indicated on the Drawings:
a. Refer to the typical details for conduit spacing and size requirements.
10. When installing conduits through existing slabs or walls, make provisions for locating any possible conflicting items where the conduit is to penetrate. Use tone signal or X-ray methods to make certain that no penetrations will be made into the existing conduits, piping, cables, post-tensioning cables, etc.
11. Plug conduits brought into pull boxes, manholes, handholes, and other openings until used to prevent entrance of moisture.
12. Install conduits through wall and floor seals where indicated on the Drawings.
13. For existing and new 2-inch and larger conduit runs, snake conduits with a conduit cleaner equipped with a cylindrical mandrel of a diameter not less than 85 percent of nominal diameter of the conduit:
a. Remove and replace conduits through which mandrel will not pass.
14. Provide all sleeves and openings required for the passage of electrical raceways or cables even when these openings or sleeves are not specifically indicated on the Drawings.
15. Install complete conduit systems before conductors are installed.
16. Provide metallic conduits terminating in transformer, switchgear, motor control center, or other equipment conduit windows with grounding bushings and ground with a minimum No. 6 AWG ground wire.
17. Underground conduits:
a. Install underground conduits, including conduit runs below slabs-on-grade in concrete-reinforced duct bank construction:
1) As specified in Section 16133 - Duct Banks.
b. Make underground conduit size transitions at handholes and manholes. c. Install spare conduits in underground duct banks towards top center of runs to allow for ease of installation of future cables as conduits enter underground manholes and handholes.
d. Seal around conduit penetrations of below grade walls with a mechanical seal.
18. Underground conduit trenching:
a. Perform trenching as specified in Section 02318 - Trenching. b. Trench must be uniformly graded with the bottom, rock free and covered with select material.
c. Damage occurring to existing ducts, conduits, cables, and other utilities during underground conduit installation shall be remediated to the satisfaction of the Owner.
d. Whenever possible, use the walls of the trench as forms for concrete encasement:
1) Forms are required where the soil is not self-supporting.
B. Equipment grounding conductors:
1. Provide a separate, green insulated, grounding conductor in each raceway independent of raceway material:
a. Multi-conductor power and control cables shall include an integral green insulated grounding conductor.
b. Provide a separate grounding conductor in each individual raceway for parallel feeders.
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2. Conductors shall be the same type and insulation as the circuit conductors:
a. Use 600-volt insulation for the equipment grounding conductors for medium voltage systems.
3. Minimum size in accordance with the NEC.
C. Lighting and receptacle conduits:
1. Provide conduit runs for lighting and receptacle circuits, whether or not indicated on the Drawings:
2. Install conduits in accordance with the requirements of this Section unless otherwise indicated.
3. Minimum conduit size:
a. 3/4-inch for exposed conduits.
b. 1-inch for underground or in-slab conduits.
4. Provide conduit materials for the installed location as specified in Section 16050 - Common Work Results for Electrical.
D. Conduit usage:
1. Exposed conduits:
a. Rigid conduit:
1) Install the rigid conduit type for each location as specified in Section 16050 - Common Work Results for Electrical.
2) Minimum size: 3/4-inch.
b. Flexible conduit:
1) Use flexible conduit for final connections between rigid conduit and motors, vibrating equipment, instruments, control equipment, or where required for equipment servicing:
a) Use Type SLT with rigid metallic conduit.
2) Minimum size: 3/4-inch:
a) 1/2 when required for connection to instruments.
3) Maximum length:
a) Fixed equipment:
Conduit Trade Size Flexible Conduit Length (inch)
3/4 18
1 18
1-1/4 18
1-1/2 18
2 36
2-1/2 36
3 36
3-1/2 38
4 40
b) Removable instruments or hinged equipment:
(1) As required to allow complete removal or full movement without disconnecting or stressing the conduit.
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2. Concrete-encased and embedded conduits:
a. Straight runs and bends less than 45 degrees:
1) Type PVC Schedule 40.
b. Bends with total deflection greater than 45 degrees:
1) PCS.
c. Entering and exiting duct bank, underground or embedded conduit runs a minimum 12 inches above and below grade, finished floor, or entering equipment:
1) PCS.
d. Minimum size:
1) 2-inch in duct banks.
2) 1-inch for in-slab conduits.
3) Provide conduit fittings to enlarge the conduit from the exposed size in the conduit schedule as required.
3. Direct-buried and sand-bedded duct bank conduits:
a. Type PCS.
b. Minimum size: 1-inch.
4. Below-slab conduits:
a. Type PCS.
b. Minimum size: 1-inch.
5. PVC-coated rigid metallic conduit:
a. Use specifically manufactured or machined threading dies to manufacturer’s specifications to accommodate the PVC jacket. b. Repair damage to PVC coatings with manufacturer supplied touchup compound or PVC Coating Repair Kit for PVC Coated Raceway Systems.
6. GRC:
a. Conduit shall be cut square and reamed before threading.
E. Conduit joints and bends:
1. General:
a. Where conduit is underground, under slabs on grade, exposed to the weather, or in NEMA Type 4 or NEMA Type 4X locations, make joints liquidtight.
b. Keep bends and offsets in conduit runs to an absolute minimum. c. All bends shall be symmetrical.
d. The following conduit systems shall use large-radius sweep elbows:
1) Underground conduits.
e. Provide large-radius factory-made bends for 1-1/4-inch trade size or larger.
f. Make field bends with a radius of not less than the requirements found in the NEC:
1) The minimum bending radius of the cable must be less than the radius of the conduit bend.
2) Make all field bends with power bending equipment or manual benders specifically intended for the purpose:
a) Make bends so that the conduit is not damaged and the internal diameter is not effectively reduced.
b) For the serving utilities, make bends to meet their requirements. g. Replace all deformed, flattened, or kinked conduit.
Conduits
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2. Threaded conduit:
a. Cut threads on rigid metallic conduit with a standard conduit-cutting die that provides a 3/4-inch per foot taper and to a length such that all bare metal exposed by the threading operation is completely covered by the couplings or fittings used. In addition, cut the lengths of the thread such that all joints become secure and wrench-tight just preceding the point where the conduit ends would butt together in couplings or where conduit ends would butt into the ends or shoulders of other fittings. b. Thoroughly ream conduit after threads have been cut to remove burrs. c. Use bushings or conduit fittings at conduit terminations. d. On exposed conduits, repair scratches and other defects with galvanizing repair stick, Enterprise Galvanizing “Galvabar™,” or CRC “Zinc It.” e. Coat conduit threads with an approved electrically conductive sealant and corrosion inhibitor that is not harmful to the conductor insulation:
1) Apply to the male threads and tighten joints securely. 2) Clean excess sealant from exposed threads after assembly. f. Securely tighten all threaded connections.
g. Any exposed threaded surfaces must be cleaned and coated with a galvanizing solution so that all exposed surfaces have a galvanized protective coating.
3. PVC:
a. Use approved solvent-weld cement specifically manufactured for the purpose. Spray-type cement is not allowed.
b. Apply heat for bends so that conduit does not distort or discolor. Use a spring mandrel as required to ensure full inside diameter at all bends:
1) Utilize a heater specifically for PVC conduit as recommended by the conduit manufacturer.
F. Conduit sealing and drainage:
1. Conduit drainage and sealing other than required for hazardous and classified areas:
a. Provide sealing and drainage in vertical drops of long (in excess of 20 feet), exterior, above-grade conduit runs at the points at which the conduit enters buildings, switchgear, control panels, lighting panelboards, and other similar enclosures.
b. Provide seal fittings with drains in vertical drops directly above grade for exterior and above-grade conduit runs that are extended below grade. c. Provide conduit seals with drains in areas of high humidity and rapidly changing temperatures:
1) Where portions of an interior raceway pass through walls, ceilings, or floors that separate adjacent areas having widely different temperatures.
d. Provide conduit seals similar to O-Z/Gedney (Type CSM) on all conduits between corrosive and non-corrosive areas.
e. Seal one end only of all underground conduits at highest point with O-Z/Gedney sealing (non-hazardous) filling, or equal.
2. Install seals with drains at any location along conduit runs where moisture may condense or accumulate. This requirement includes, but is not limited to, the following locations: control panels, junction boxes, pullboxes, or low points of the conduit.
Conduits
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pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/16130 (BidSetFinal) G. Conduit supports:
1. General:
a. Provide appropriate hangers, supports, fasteners, and seismic restraints to suit applications:
1) As specified in Section 16070 - Hangers and Supports. 2) Provide support materials consistent with the type of conduit being installed as specified in Section 16050 - Common Work Results for Electrical.
b. Support conduit at the intervals required by the NEC. c. Perforated strap and plumbers’ tape are not acceptable for conduit supports.
2. Conduit on concrete or masonry:
a. Use 1-hole malleable iron straps with metallic or plastic expansion anchors and screws or support from preset inserts.
b. Use preset inserts in concrete when possible.
c. Use pipe spacers (clamp backs) in wet locations.
3. Suspended conduit:
a. Use malleable-iron factory-made split-hinged pipe rings with threaded suspension rods sized for the weight to be carried (minimum 3/8-inch diameter), Kindorf, or equal.
b. For grouped conduits, construct racks with threaded rods and tiered angle iron or preformed channel cross members. Clamp each conduit individually to a cross member. Where rods are more than 2-feet long, provide rigid sway bracing.
4. Supports at structural steel members:
a. Use beam clamps.
b. Drilling or welding may be used only as specified or with approval of the Engineer.
5. PVC-coated rigid metal systems:
a. Provide right-angle beam clamps and “U” bolts specially formed and sized to snugly fit the outside diameter of the coated conduit. Provide "U" bolts with PVC-encapsulated nuts that cover the exposed portions of the threads.
b. Securely fasten exposed conduits with Type 316 stainless steel clamps or straps.
H. Expansion or expansion/deflection fittings:
1. General:
a. Align expansion coupling with the conduit run to prevent binding. b. Follow manufacturer’s instructions to set the piston opening. c. Install expansion fittings across concrete expansion joints and at other locations where necessary to compensate for thermal or mechanical expansion and contraction.
d. Furnish fittings of the same material as the conduit system.
2. For metallic conduit, provide expansion or expansion/deflection couplings, as appropriate, where:
a. Install expansion fittings a minimum of every 200 feet in straight conduit runs.
Conduits
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1. Provide a pull tape in each empty conduit more than 10 feet in length.
2. Seal ends of all conduits with approved, manufactured conduit seals, caps, or plugs immediately after installation:
a. Keep ends sealed until immediately before pulling conductors.
J. Miscellaneous:
1. Seal roof penetrations for raceways and other items that penetrate the roof in accordance with roofing manufacturer’s instructions and as indicated on the Drawings.
2. Provide electrical unions at all points of union between ends of rigid conduit systems that cannot otherwise be coupled:
a. Running threads and threadless couplings are not allowed.
3. Replace any conduits installed that the Engineer determines do not meet the requirements of this Specification.
4. Provide conduit housekeeping curb around all embedded or below-grade conduits exiting or entering the slab, per the Typical Details.
3.04 ERECTION, INSTALLATION, APPLICATIONS, CONSTRUCTION (NOT USED)
3.05 REPAIR/RESTORATION (NOT USED)
3.06 RE-INSTALLATION (NOT USED)
3.07 COMMISSIONING
A. As specified in Section 01756 - Commissioning.
3.08 FIELD QUALITY CONTROL (NOT USED)
3.09 ADJUSTING (NOT USED)
3.10 CLEANING (NOT USED)
3.11 PROTECTION (NOT USED)
3.12 SCHEDULES (NOT USED)
END OF SECTION
Duct Banks
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DUCT BANKS
PART 1 GENERAL
1.01 SUMMARY
A. Section includes:
1. Electrical underground duct banks.
2. Duct bank installation requirements.
1.02 REFERENCES
A. As specified in Section 16050 - Common Work Results for Electrical.
1.03 DEFINITIONS
A. As specified in Section 16050 - Common Work Results for Electrical.
1.04 SYSTEM DESCRIPTION
A. Provide location and protection of existing underground utilities, duct bank, trenching, forming, rebar, spacers, conduit, concrete, backfill, and compaction necessary for the complete installation of the duct banks.
B. Provide reinforced concrete duct banks for all conduits installed below grade, on the site, below structures, or in contact with the earth, unless otherwise indicated on the Drawings.
1.05 SUBMITTALS
A. Furnish submittals as specified in Section 01330 - Submittal Procedures.
B. Product data:
1. PVC conduit spacers.
2. Detectable underground marking tape.
3. Pull line.
C. Shop drawings:
1. Submit site plan drawings of duct banks including underground profiles indicating all underground utilities.
2. Submit cross section of each duct bank with dimensions.
3. For duct bank routings crossing under building footers or foundations alternative to designed routings indicated on the Drawings:
a. Submit shop drawings detailing the new building footer crossing locations and plan drawings labeling all equipment to be installed on top of the new routing for approval by the project Structural Engineer.
Duct Banks
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1.06 QUALITY ASSURANCE (NOT USED)
1.07 DELIVERY, STORAGE, AND HANDLING (NOT USED)
1.08 PROJECT OR SITE CONDITIONS
A. As specified in Section 01850 - Design Criteria.
B. Duct bank sections indicated on the Drawings are an initial arrangement and may need to be modified due to existing site conditions, existing underground utilities, and infrastructure.
1. Reorganize duct bank section with approval of Engineer.
1.09 SEQUENCING
A. Duct bank construction has a prerequisite of fulfilling all aspects of Section 02280 - Subsurface Utility Engineering.
B. Before performing any excavation, the following prerequisites must be met for each duct bank routing:
1. Review of existing civil record drawings for recorded underground utilities.
2. Existing underground utility horizontal and vertical location by minimum 2 of the following methods:
a. Ground-penetrating radar.
b. Soft excavation.
c. Local utility location service, CALL BEFORE YOU DIG or equal.
3. Protection of any discovered existing underground utility shall remain intact until the nearby duct bank installation is complete.
C. Make changes required to accommodate duct bank configuration and routing changes due to field conditions.
1. Where changes in a duct bank configuration extend to a manhole or handhole, coordinate manhole/handhole blockouts and size with the new configuration.
1.10 SCHEDULING
A. Schedule a coordination meeting to adjust duct bank configurations and routing for each duct bank section after trenching and exposure of any underground utilities within the vicinity of the duct bank route. The meeting shall determine the final configuration of the duct bank before installation.
1.11 WARRANTY
A. As specified in Section 01783 - Warranties and Bonds.
1.12 SYSTEM START-UP (NOT USED)
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1.13 OWNER'S INSTRUCTIONS (NOT USED)
1.14 MAINTENANCE (NOT USED)
PART 2 PRODUCTS
2.01 MANUFACTURERS
A. Conduit spacers:
1. One of the following or equal:
a. Carlon Snap-Loc.
b. Cantex.
c. Osburn Associates, Inc.
B. Detectable underground marking tape:
1. One of the following or equal:
a. Blackburn Manufacturing Co.
b. Pro-Line Safety Products.
c. Panduit.
C. Pull line:
1. One of the following or equal:
a. Arnco.
b. Greenlee.
c. Osburn Associates, Inc.
D. Duct seal:
1. The following or equal:
a. O-Z/Gedney type DUX.
2.02 EXISTING PRODUCTS (NOT USED)
2.03 MATERIALS
A. Provide conduit as specified in Section 16130 - Conduits.
B. Provide reinforcing steel as specified in Section 03200 - Concrete Reinforcing:
1. Provide minimum Number 4 reinforcing steel.
2.04 MANUFACTURED UNITS
A. Conduit spacers:
1. Provide conduit spacers recommended by the conduit manufacturer or specified above.
2. Saddle type.
3. Non-metallic, non-corrosive, non-conductive.
4. Interlocking type:
a. Vertical interlocking.
b. Horizontal interlocking.
5. Suitable for concrete encasement.
Duct Banks
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6. Molded-in rebar holder.
7. Accommodates 2-inch through 6-inch conduit sizes.
8. Relieves the conduit from both horizontal and vertical stresses.
B. Pull line:
1. Minimum 1/4-inch wide, flat design.
2. Polyester.
3. Minimum pulling strength 1,200 pounds.
C. Detectable marking tape:
1. Provide a detectable tape, locatable by a cable or metal detector from above the undisturbed grade.
2. Aluminum core laminated between polyethylene film.
3. 6-inch-wide red tape imprinted with black lettering stating "CAUTION - BURIED ELECTRIC LINE BELOW" or equivalent.
D. Duct seal:
1. Non-hardening sealing compound.
2. Flexible, can be applied by hand.
3. UL Listed for use with installed conductors.
2.05 EQUIPMENT (NOT USED)
2.06 COMPONENTS (NOT USED)
2.07 ACCESSORIES (NOT USED)
2.08 MIXES
A. Concrete mix requirements as specified in Section 03300 - Cast-in-Place Concrete.
B. Provide a red-oxide conduit encasement coloring agent as specified in Section 03300 - Cast-in-Place Concrete.
2.09 FABRICATION (NOT USED)
2.10 FINISHES (NOT USED)
2.11 SOURCE QUALITY CONTROL (NOT USED)
PART 3 EXECUTION
3.01 EXAMINATION (NOT USED)
3.02 PREPARATION (NOT USED)
3.03 INSTALLATION
A. Duct banks:
1. Install duct banks encased in concrete at least 24 inches below finish grade, unless otherwise indicated on the Drawings.
Duct Banks
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2. Damage minimization:
a. Conduit should not be left exposed in an open trench longer than is necessary.
b. Protect all underground duct banks against damage during pouring of concrete or backfilling.
3. All plastic conduit fittings to be joined should be exposed to the same temperature conditions for a reasonable length of time before assembly.
4. Provide No. 4/0 American Wire Gauge bare copper ground wire the entire length of duct bank and bond to the grounding system at each end of the duct bank and every 20 feet to steel reinforcing bar.
5. Install underground ducts to be self-draining:
a. Slope duct banks away from buildings to manholes, handholes, or pullboxes.
b. Slope duct banks uniformly from manholes, handholes, or pullboxes to manholes, handholes, or pullboxes or both ways from high points between manholes, handholes, or pullboxes.
c. Slope a minimum of 1/4 inch per 10 feet.
6. Where new duct banks join to existing manholes, handholes, or pullboxes, make the proper fittings and fabricate the concrete envelopes to ensure smooth durable transitions, as indicated on the Drawings.
7. Install pull line in spare conduits:
a. Provide adequate pull line at both ends of conduits to facilitate conductor pulling.
b. Cap above ground spare conduit risers at each end with screw-on conduit caps.
B. Trenching:
1. Perform trenching as specified in Section 02318 - Trenching.
2. Trench must be uniformly graded with the bottom, rock free and covered with select material.
3. Whenever possible, use the walls of the trench as forms for concrete encasement:
a. Forms are required where the soil is not self-supporting.
4. Damage occurring to existing ducts, conduits, cables, and other utilities during duct bank installation shall be remediated to the satisfaction of the Owner.
C. Duct spacing:
1. Separate conduits with manufactured plastic spacers using a minimum space between the outside surfaces of adjacent conduits of 2 inches, unless otherwise indicated on the Drawings:
a. Separate medium voltage ducts a minimum of 7.5 inches on center.
2. Install spacers to maintain uniform spacing of duct assembly a minimum of 4 inches above the bottom of the trench during concrete pour. Install spacers on 8-foot maximum intervals:
a. Due to some distortion of conduit from heat, and other means, it may be necessary to install extra spacers within the duct bank:
1) Install the intermediate set of spacers within normal required spacing to maintain the proper horizontal clearance:
a) Clearance is required to allow the proper amount of concrete to infiltrate vertically among the duct to ensure proper protection.
Duct Banks
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3. Spacers shall not be located at the center of a bend:
a. Locate spacer in the tangent, free of the coupling on fabricated bends. b. Locate spacers midway between the tangent and the center bend on trench formed sweeps.
D. Terminating:
1. Use bell ends in duct at entrances into cable vaults.
2. Make conduit entrances into cable vaults tangential to walls of cable vault.
3. Form trapezoidal transitions between duct bank and cable vaults as needed in order to ensure adequate cable bending radius for the duct bank-to-vault transition.
4. Install duct seal in all conduits including spare conduits, at both ends, entrance to manholes/handholes, and building/equipment stub-ups. Form by hand to conduit and around cables to develop moisture barrier.
5. New manhole or handhole applications, provide a single opening or "window" per duct bank, sized to accommodate the duct bank envelope.
E. Concrete:
1. Install concrete as specified in Section 03300 - Cast-in-Place Concrete.
2. Provide tie wires in accordance with Section 03200 - Concrete Reinforcing to prevent displacement of the conduits during pouring of concrete:
a. Tie wire shall not act as a substitute for spacers.
3. Install minimum 3-inch cover around conduit and rebar.
4. Consolidation of encasement concrete around duct banks shall be by hand puddling. Mechanical vibrators are acceptable for use outside of the rebar cage.
5. Conduit is subject to temperature rise. As concrete cures, allow the free end to expand by pouring the concrete from the center of the run or from one tie in point.
F. Marking tape:
1. Install a detectable marking tape 12 inches above the duct bank the entire length of the duct bank.
G. For conduit installations beneath building slabs:
1. Duct banks shall be continued under building slabs to the final destination of the conduits.
a. Construct separate duct banks as required.
b. Concrete for encasement under building slabs need not be colored red. c. For duct banks crossing under building foundation, install the top of the duct bank a minimum of 6 inches below the footer.
d. Where duct banks enter through building walls, foundation walls, stem walls, etc. make connections as indicated on the Drawings. e. Where duct banks terminate with conduit risers entering building walls, install an expansion/deflection fitting or a flat-wise elbow (elbow parallel to building wall) in order to accommodate differential movement between the conduits and structure.
H. Restore all surfaces to their original condition as specified in Section 02952 - Pavement Restoration and Rehabilitation, unless otherwise specified.
Duct Banks
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3.04 ERECTION, INSTALLATION, APPLICATION, CONSTRUCTION (NOT USED)
3.05 REPAIR/RESTORATION (NOT USED)
3.06 RE-INSTALLATION (NOT USED)
3.07 COMMISSIONING
A. As specified in Section 01756 - Commissioning.
3.08 FIELD QUALITY CONTROL (NOT USED)
3.09 ADJUSTING (NOT USED)
3.10 CLEANING
A. Clean conduits of dirt and debris by use of an appropriately sized steel mandrel no less than 1/2 inch smaller than the inside diameter of the conduit.
3.11 PROTECTION
A. Provide shoring and pumping to protect the excavation and safety of workers.
B. Protect excavations with barricades as required by applicable safety regulations.
3.12 SCHEDULES (NOT USED)
END OF SECTION
Boxes
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BOXES
PART 1 GENERAL
1.01 SUMMARY
A. Section includes:
1. Device boxes.
2. Raceway system boxes.
1.02 REFERENCES
A. As specified in Section 16050 - Common Work Results for Electrical.
B. American Association of State Highway and Transportation Officials (AASHTO):
1. Standard Specifications for Highway Bridges.
C. ASTM International (ASTM):
1. A47 - Standard Specification for Ferritic Malleable Iron Castings.
2. D149 - Standard Test Method for Dielectric Breakdown Voltage and Dielectric Strength of Solid Electrical Insulating Materials at Commercial Power Frequencies.
3. D495 - Standard Test Method for High-Voltage, Low-Current, Dry Arc Resistance of Solid Electrical Insulation.
4. D570 - Standard Test Method for Water Absorption of Plastics.
5. D648 - Standard Test Method for Deflection Temperature of Plastics Under Flexural Load in the Edgewise Position.
6. D790 - Standard Test Methods for Flexural Properties of Unreinforced and Reinforced Plastics and Electrical Insulating Materials.
7. D792 - Standard Test Methods for Density and Specific Gravity (Relative Density) of Plastics by Displacement.
D. Joint Industry Conference (JIC).
E. Underwriters Laboratories, Inc. (UL):
1. 94 - Standard for Tests for Flammability of Plastic Materials for Parts in Devices and Appliances.
1.03 DEFINITIONS
A. As specified in Section 16050 - Common Work Results for Electrical.
B. Specific definitions:
1. Arcing parts: Circuit breakers, motor controllers, switches, fuses, or any device intended to interrupt current during its operation.
2. Raceway system boxes: Boxes that are used for wire and cable pullboxes, conduit junction boxes, or terminal boxes.
Boxes
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1.04 SYSTEM DESCRIPTION
A. Provide outlet boxes for wiring devices, junction, and pullboxes for use in the raceway systems, etc.
B. Provide boxes as indicated on the Drawings or as needed to complete the raceway installation.
1.05 SUBMITTALS
A. Furnish submittals as specified in Section 01330 - Submittal Procedures.
B. Product data:
1. Manufacturer.
2. Materials.
3. Dimensions:
a. Height.
b. Width.
c. Depth.
d. Weight.
e. NEMA rating.
4. Conduit entry locations.
5. Catalog cutsheets.
6. Installation instructions.
C. Shop drawings:
1. Include identification and sizes of pullboxes.
1.06 QUALITY ASSURANCE
A. Regulatory requirements:
1. Outlet boxes shall comply with all applicable standards of:
a. JIC.
b. NEC.
c. NEMA.
d. UL.
1.07 DELIVERY, STORAGE, AND HANDLING (NOT USED)
1.08 PROJECT OR SITE CONDITIONS
A. As specified in Section 01850 - Design Criteria.
1.09 SEQUENCING (NOT USED)
1.10 SCHEDULING (NOT USED)
1.11 WARRANTY
A. As specified in Section 01783 - Warranties and Bonds.
Boxes
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1.12 SYSTEM START-UP (NOT USED)
1.13 OWNER’S INSTRUCTIONS (NOT USED)
1.14 MAINTENANCE (NOT USED)
PART 2 PRODUCTS
2.01 MANUFACTURERS
A. One of the following or equal:
1. Pressed steel boxes and concrete boxes:
a. Steel City.
b. Appleton.
c. Crouse - Hinds.
d. Thomas & Betts.
2. Plastic and/or fiberglass boxes:
a. Hoffman.
b. Carlon.
c. Stahlin.
3. Cast device boxes:
a. Appleton.
b. Crouse - Hinds.
c. OZ/Gedney.
4. Formed steel enclosures:
a. Hoffman.
b. Thomas and Betts.
c. Stahlin.
d. Rittal.
5. Stainless steel enclosures:
a. Hoffman.
b. Stahlin.
c. Rittal.
2.02 EXISTING PRODUCTS (NOT USED)
2.03 MATERIALS (NOT USED)
2.04 MANUFACTURED UNITS
A. Pressed steel boxes:
1. 1-piece galvanized pressed steel.
2. Knockout type boxes.
3. Minimum size 4-inch square by 2-1/8-inch deep.
B. Concrete boxes:
1. For outlets and pullboxes in concrete construction.
2. Pressed steel or cast construction, concrete tight.
3. Knockout sizes range from 1/2 inch to 1 inch.
Boxes
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4. Depth as needed.
5. Types:
a. Four-inch octagon.
b. Four-inch octagon ceiling boxes with hanging bars.
c. Gangable masonry boxes:
1) 3-1/2-inch deep, 3-3/4-inch high, length as required:
a) 2-1/2-inch deep boxes may be used where wall thickness precludes the use of the deeper boxes.
2) With partitions as needed.
C. Cast device boxes:
1. Construction:
a. With internal green ground screw.
b. Furnished with a suitable gasketed cover.
c. With integral cast mounting lugs when surface mounted. d. Conduit sizes range from 3/4 inch to 1 inch.
e. Tapered threaded hubs with integral bushing.
2. Aluminum (copper free) boxes:
a. High strength copper free 4/10 of 1 percent maximum alloy for use with aluminum rigid conduit.
3. Malleable iron boxes:
a. Conforming to ASTM A47 Grade 32510.
D. Fiberglass boxes:
1. NEMA Type 4X.
2. Constructed of molded fiberglass reinforced polyester.
3. Integral neoprene gasket on cover attached with an oil-resistant adhesive.
4. Enclosures to have internal pads for mounting optional panels and terminal kits.
5. Covers:
a. Screw cover enclosures:
1) Covers held in place with captive, stainless steel, or Monel® screws. 2) Covers attached to body with internal zinc-plated steel hinges. b. Quick release latches covers:
1) Corrosion resistant fiberglass hinges.
2) Spring loaded fiberglass latches with a Monel® or stainless steel bail attached with Monel® or stainless steel screws.
3) With a Type 316 stainless steel padlock hasp.
6. With external mounting feet.
7. Meeting the following minimum standards and tests:
Physical Property Value ASTM Method
Flexural strength 12,000 psi D790
Heat distortion 400° Fahrenheit D648
Water absorption (24 hrs) 0.5 percent D570
Tensile strength 5000 psi D651
Specific gravity 1.8 D792
Flammability 94V-0 UL94
Dielectric strength 4000 V.P.M. D149
Arc resistance 180 second D495
Boxes
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pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/16134 (BidSetFinal) E. Formed steel enclosures:
1. Steel:
a. NEMA Type 12.
b. Fabricated from 14-gauge steel, minimum.
c. All seams continuously welded ground smooth.
d. Door:
1) Rolled lip around 3 sides.
2) Attached to enclosure by means of a continuous stainless steel hinge and pin.
e. Neoprene door gasket to provide a watertight, dusttight, oiltight seal:
1) Attached with an adhesive.
2) Retained by a retaining strip.
f. Fabricate all external removable hardware for clamping the door to the enclosure body from zinc-plated heavy gauge steel:
1) With a hasp and staple for padlocking.
g. Provide large enclosures with door and body stiffeners for extra rigidity. h. No holes or knockouts.
i. Finish:
1) ANSI-61 gray electrostatically applied polyester powder inside and out over cleaned and primed surfaces.
2) White electrostatically applied polyester powder mounting plate. j. Heavy gauge steel external mounting brackets when surface mounted.
2. Stainless steel:
a. NEMA Type 4X:
1) Boxes in locations subject to flooding or temporary submersion:
a) NEMA Type 6.
b. Fabricated from 14-gauge Type 316 stainless steel.
c. All seams continuously welded.
d. Door:
1) Rolled lip around 3 sides.
2) Attached to enclosure by means of a continuous stainless steel hinge and pin.
e. Neoprene door gasket to provide a watertight seal:
1) Attached with an adhesive.
2) Retained by a retaining strip.
f. Fabricate all external removable hardware for clamping the door to the enclosure body from heavy gauge stainless steel:
1) With a hasp and staple for padlocking.
g. Provide large enclosures with door and body stiffeners for extra rigidity. h. No holes or knockouts.
i. Finish:
1) Brushed.
j. Stainless steel external mounting brackets when surface mounted.
F. Cast iron junction boxes:
1. NEMA Type 4.
2. Recessed cover boxes.
3. Suitable for use outdoors where subject to rain, dripping, or splashing water.
4. Designed for flush mounting in walls or floors:
a. Can be surface mounted using mounting lugs.
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5. Construction:
a. Cast iron box.
b. Covers:
1) Checkered plate covers suitable for foot traffic.
2) When used in areas subject to vehicular traffic, design to support an AASHTO Standard Specifications for Highway Bridges, H-20 vehicle loading.
c. Hot dip galvanized.
d. Neoprene gasket.
e. Stainless steel screw covers.
2.05 EQUIPMENT (NOT USED)
2.06 COMPONENTS (NOT USED)
2.07 ACCESSORIES
A. Fasteners:
1. Electroplated or stainless steel in boxes with wiring devices.
2. Screws, nuts, bolts, and other threaded fasteners:
a. Stainless steel.
B. Provide breather and drain fittings where appropriate.
C. Internal panels:
1. Provide internal panels where required for mounting of terminal strips or other equipment.
2. With plated steel shoulder studs.
3. Steel with white polyester powder finish.
2.08 MIXES (NOT USED)
2.09 FABRICATION (NOT USED)
2.10 FINISHES (NOT USED)
2.11 SOURCE QUALITY CONTROL (NOT USED)
PART 3 EXECUTION
3.01 EXAMINATION (NOT USED)
3.02 PREPARATION (NOT USED)
3.03 INSTALLATION
A. General:
1. Provide materials and construction suitable for environmental conditions at the location of the box as specified in Section 16050 - Common Work Results for Electrical.
Boxes
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2. Provide outlet box materials to match the conduit system:
a. GRC - Cast ferrous boxes.
b. PCS - PVC coated cast ferrous boxes.
c. PVC - PVC boxes.
3. Solid type gang boxes:
a. For more than 2 wiring devices.
b. For barriered outlets.
4. Support all wall mounted NEMA Type 4 or NEMA Type 4X boxes to maintain a minimum of 7/8-inch free air space between the back of the enclosure and the wall:
a. Use machined spacers to maintain air space; built-up washers are not acceptable.
b. Use stainless steel or nylon materials for spacers.
5. Use cast malleable iron boxes when box must support other devices.
6. Boxes serving luminaires or wiring devices:
a. Use as pullboxes wherever possible.
7. Fit all cast boxes and pressed steel boxes for flush mounting in concrete with cast, malleable box covers and gaskets.
8. In terminal boxes, furnish terminals as indicated on the Drawings, with a minimum of 50 percent spare terminals:
a. Furnish wireways for discrete and analog/DC wiring.
b. Separate analog wiring from 120 V discrete or power wiring.
9. Size boxes in accordance with NEC requirements and to provide sufficient room for the future components and cables indicated on the Drawings.
10. For fire-rated construction, provide materials and installation for use in accordance with the listing requirements of the classified construction.
B. Outlet boxes:
1. Locate outlet boxes as indicated on the Drawings:
a. Adjust locations so as not to conflict with structural requirements or other trades.
2. Use deep threaded-hub stainless steel:
a. I
b. Where exposed to the weather.
c. In unheated areas.
d. Where subject to mechanical damage:
1) Defined as exposed boxes less than 10 feet above the floor. e. To act as a pullbox for conductors in a conduit system. f. Accommodate wiring devices.
3. Use deep threaded-hub plastic coated malleable iron boxes in corrosive and NEMA Type 4X area and when the exposed conduit system is PVC coated steel.
4. Outlet boxes may be used as junction boxes wherever possible.
C. Pullboxes and junction boxes:
1. Size pullboxes in accordance with NEC requirements and to provide sufficient room for any future conduits and cables as indicated on the Drawings.
2. Install pullboxes such that access to them is not restricted.
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1. Provide types and mountings as required to suit the equipment and that will be consistent with the conduit system and environmental conditions as indicated in Section 16050 - Common Work Results for Electrical.
2. Outlet, switch, and junction boxes for flush-mounting in general purpose locations:
a. One-piece, galvanized, pressed steel.
3. Outlet, switch, and junction boxes where surface mounted in exposed locations:
a. Cast ferrous boxes with mounting lugs, zinc or cadmium plating finish.
4. Outlet, control station, and junction boxes for installation in corrosive locations:
a. Fiberglass reinforced polyester, stainless steel, or plastic-coated steel to match the conduit system.
b. Furnished with mounting lugs.
5. Fire rated construction: Use materials and methods to comply with the listing requirements for the classified construction.
3.04 ERECTION, INSTALLATION, APPLICATION, CONSTRUCTION (NOT USED)
3.05 REPAIR/RESTORATION (NOT USED)
3.06 REINSTALLATION (NOT USED)
3.07 COMMISSIONING
A. As specified in Section 01756 - Commissioning.
3.08 FIELD QUALITY CONTROL
A. As specified in Section 16050 - Common Work Results for Electrical.
3.09 ADJUSTING (NOT USED)
3.10 CLEANING
A. As specified in Section 16050 - Common Work Results for Electrical.
3.11 PROTECTION (NOT USED)
3.12 SCHEDULES (NOT USED)
END OF SECTION
Wiring Devices
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WIRING DEVICES
PART 1 GENERAL
1.01 SUMMARY
A. Section includes:
1. Switches.
2. Receptacles.
3. Plates.
1.02 REFERENCES
A. As specified in Section 16050 - Common Work Results for Electrical.
B. Federal Specifications (FS):
1. W-C 596 - Connector, Electrical, Power, General Specification for.
2. W-S 896/2 - Switches, Toggle (Toggle and Lock), Flush Mounted (General Specification).
C. National Electrical Manufacturers Association (NEMA):
1. WD1 - General Color Requirements for Wiring Devices.
2. ICS 5 - Industrial Control and Systems, Control Circuit and Pilot Devices.
3. OS1 - Sheet-Steel Outlet Boxes, Device Boxes, Covers and Box Supports.
4. WD6 - Wiring Devices Dimensional Specifications.
D. Underwriters Laboratories, Inc. (UL):
1. 20 - General Use Snap Switches.
2. 498 - Standard for Attachment Plugs and Receptacles.
3. 514D - Cover Plates for Flush-Mounted Wiring Devices.
4. 943 - Ground-Fault Circuit-Interrupters.
1.03 DEFINITIONS
A. As specified in Section 16050 - Common Work Results for Electrical.
B. Specific definitions:
1. GFCI: Ground fault circuit interrupter.
1.04 SYSTEM DESCRIPTION
A. Switches, receptacles, and plates as indicated on the Drawings wired and operable to form a complete system.
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1.05 SUBMITTALS
A. Furnish submittals as specified in Section 01330 - Submittal Procedures.
B. Product data:
1. Catalog cutsheets.
C. Shop drawings:
1. Engraving schedule:
a. Furnish complete engraving schedule for engraved nameplates.
1.06 QUALITY ASSURANCE
A. Wiring devices shall be UL listed and labeled.
1.07 DELIVERY, STORAGE, AND HANDLING (NOT USED)
1.08 PROJECT OR SITE CONDITIONS
A. As specified in Section 01850 - Design Criteria.
1.09 SEQUENCING (NOT USED)
1.10 SCHEDULING (NOT USED)
1.11 WARRANTY
A. As specified in Section 01783 - Warranties and Bonds.
1.12 SYSTEM START-UP (NOT USED)
1.13 OWNER'S INSTRUCTIONS (NOT USED)
1.14 MAINTENANCE (NOT USED)
PART 2 PRODUCTS
2.01 MANUFACTURERS
A. Switches:
1. One of the following or equal:
a. Hubbell.
b. Leviton.
c. Cooper Wiring Devices.
B. Receptacles:
1. General purpose receptacles:
a. One of the following or equal:
1) Hubbell.
2) Leviton.
3) Cooper Wiring Devices.
Wiring Devices
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1. General location:
a. One of the following or equal:
1) Legrand.
2) Cooper Wiring Devices.
2. Wet or corrosive areas:
a. One of the following or equal:
1) Hubbell.
2) Cooper Wiring Devices.
3) Thomas & Betts.
4) Pass and Seymour.
3. In-use covers:
a. One of the following or equal:
1) TayMac.
2) Cooper Wiring Devices.
3) Pass and Seymour.
4) Thomas & Betts.
2.02 EXISTING PRODUCTS (NOT USED)
2.03 MATERIALS (NOT USED)
2.04 MANUFACTURED UNITS
A. Switches:
1. General:
a. 120-277 VAC.
b. 20 ampere.
c. Listed in accordance with UL 20.
d. Designed and constructed in accordance with FS W-S-896/2. e. Back and side wired unless otherwise indicated.
f. Integral grounding terminal.
g. Totally enclosed:
1) Color-coded body with color corresponding to ampere rating. h. Provide switches with the operator style and contact arrangement as indicated on the Drawings and as required for proper operation. i. Color:
1) Ivory in finished areas.
2) Brown in all other areas.
2. General purpose switches:
a. Toggle type.
B. Receptacles:
1. General purpose receptacles:
a. Single or duplex as indicated on the Drawings.
b. 125 VAC.
c. 20 ampere or as indicated on the Drawings.
d. NEMA Type 5-20R configuration for 20 ampere receptacles. e. Other NEMA configurations as indicated on the Drawings. f. Listed in accordance with UL 498.
g. Designed and constructed in accordance with FS W-C-596.
Wiring Devices
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i. 1-piece, rivet-less mounting strap.
j. Color:
1) Ivory in finished areas.
2) Brown in all other areas.
3) Orange when powered by a UPS.
2. Ground fault interrupter receptacles (GFCI):
a. 125 VAC.
b. 20 ampere.
c. Trip level 4-6 milliamperes.
d. Individual and feed through protection.
e. UL 943 and UL 498 listed.
f. NEMA Type 5-20R configuration.
g. For damp or wet locations:
1) Weather resistant, in accordance with UL 498.
C. Plates:
1. General location:
a. Type 302 or 304 stainless steel.
b. Brushed satin finish.
c. Minimum thickness: 0.032 inches.
d. Rectangular or square shape.
e. Engraving:
1) Engrave each switch plate with the following:
a) Area served.
b) Panelboard and Circuit.
2) Engrave each receptacle plate with the following:
a) Panelboard and Circuit.
3) Treat engraving to improve visibility.
4) Characters shall be block letter pantograph engraved with a minimum character height of 1/8-inch.
f. Coordinate the number of gangs, number, and type of openings with the specific location.
2. Outdoor and wet areas requiring NEMA Type 4 or NEMA Type 4X enclosures:
a. General:
1) UL listed for wet locations.
2) Gasketed.
3) Die cast metal:
a) Match material to box material.
b. Switches:
1) Lever operated:
a) Provide toggle switch.
c. Receptacles:
1) Weatherproof in-use cover:
a) Die cast metal construction with electrostatic powder coating for corrosion resistance.
b) Gasketed.
c) Lockable.
d) UL listed and in accordance with NEC.
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3. Corrosive areas:
a. Neoprene.
b. Gasketed.
c. Weatherproof.
2.05 EQUIPMENT (NOT USED)
2.06 COMPONENTS (NOT USED)
2.07 ACCESSORIES (NOT USED)
2.08 MIXES (NOT USED)
2.09 FABRICATION (NOT USED)
2.10 FINISHES (NOT USED)
2.11 SOURCE QUALITY CONTROL (NOT USED)
PART 3 EXECUTION
3.01 EXAMINATION (NOT USED)
3.02 PREPARATION (NOT USED)
3.03 INSTALLATION
A. Mounting heights:
1. Process and production areas:
a. Switches and receptacles 48 inches from finished floor to top of plate.
2. Offices and finished areas:
a. Switches: 48 inches from finished floor to top of plate. b. Receptacles: 18 inches from finished floor to center of plate.
B. Switches:
1. Over 300 Volts:
a. Where switches used in systems of more than 300 volts between conductors, are to be ganged in outlet boxes, provide switches having no exposed live parts or use barriers between the individual switches.
C. Receptacles:
1. Provide GFCI receptacles as indicated on the Drawings. a. Provide weather resistant GFCI receptacles in all wet or damp areas. 1) As specified in Section 16050 - Common Work Results for Electrical.
2. Mount non-weatherproof receptacles vertically:
a. Ground slot down.
Wiring Devices
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3. Mount weatherproof receptacles horizontally:
a. Neutral slot up.
4. 3-phase receptacles shall be consistent with respect to phase connection at the receptacle terminals. Correct errors in phasing at the source and not the receptacle.
D. Ensure all plates make a firm seal with wall for recessed mounted devices:
1. Outside edges of plates parallel with building lines.
3.04 ERECTION, INSTALLATION, APPLICATION, CONSTRUCTION (NOT USED)
3.05 REPAIR/RESTORATION (NOT USED)
3.06 REINSTALLATION (NOT USED)
3.07 COMMISSIONING
A. As specified in Section 01756 - Commissioning.
3.08 FIELD QUALITY CONTROL (NOT USED)
3.09 ADJUSTING (NOT USED)
3.10 CLEANING (NOT USED)
3.11 PROTECTION (NOT USED)
3.12 SCHEDULES (NOT USED)
END OF SECTION
Low Voltage Wire Connections
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LOW VOLTAGE WIRE CONNECTIONS
PART 1 GENERAL
1.01 SUMMARY
A. Section includes:
1. Wire connecting devices.
2. Terminations.
3. Splices.
4. Power Distribution Blocks
1.02 REFERENCES
A. As specified in Section 16050 - Common Work Results for Electrical.
B. ASTM International (ASTM):
1. D3005 - Standard Specification for Low-Temperature Resistant Vinyl Chloride Plastic Pressure-Sensitive Electrical Insulating Tape.
C. CSA International (CSA):
1. C22.2 - No. 197-M1983 (R2208) - PVC Insulating Tape.
D. Underwriters Laboratories, Inc. (UL):
1. 510 - Standard for Polyvinyl Chloride, Polyethylene, and Rubber Insulating Tape.
2. 1953 - Outline of Investigation for Power Distribution Blocks.
1.03 DEFINITIONS
A. As specified in Section 16050 - Common Work Results for Electrical.
1.04 SYSTEM DESCRIPTION
A. Provide a complete system of wiring connectors, terminators, fittings, etc. for a complete wiring system suitable for the cables and conductors used.
1.05 SUBMITTALS
A. Furnish submittals as specified in Section 01330 - Submittal Procedures.
B. Product data:
1. Catalog cutsheets.
2. Installation instructions.
1.06 QUALITY ASSURANCE
A. All materials shall be UL listed.
Low Voltage Wire Connections
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1.07 DELIVERY, STORAGE, AND HANDLING (NOT USED)
1.08 PROJECT OR SITE CONDITIONS
A. As specified in Section 01850 - Design Criteria.
1.09 SEQUENCING
A. Conduct the initial fault current study as specified in Section 16305 - Electrical System Studies and submit results for Engineer’s review.
B. After successful review of the initial fault current study, submit complete equipment submittal.
1.10 SCHEDULING (NOT USED)
1.11 WARRANTY
A. As specified in Section 01783 - Warranties and Bonds.
1.12 SYSTEM START-UP (NOT USED)
1.13 OWNER’S INSTRUCTIONS (NOT USED)
1.14 MAINTENANCE (NOT USED)
PART 2 PRODUCTS
2.01 MANUFACTURERS
A. Manufacturers for each type of technology are specified with the equipment in this Section.
2.02 EXISTING PRODUCTS (NOT USED)
2.03 MATERIALS (NOT USED)
2.04 MANUFACTURED UNITS (NOT USED)
2.05 EQUIPMENT
A. Control connections:
1. Use insulated ring type wire terminators for connections to all screw terminals:
a. With chamfered/funneled terminal barrel entry.
b. Deep internal serrations.
c. Long barrel design to reduce electrical resistance and increased insulator-barrel surface area to ensure that the insulator remains in contact with the barrel.
Low Voltage Wire Connections
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pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/16150 (BidSetFinal) d. Electroplated-tin copper conductor.
e. Manufacturers: The following or equal:
1) Thomas & Betts, Sta-Kon.
2. For process equipment connections work from manufacturer's drawings.
B. Joints, splices, taps, and connections:
1. 600-volt conductors:
a. Use solderless connectors.
b. Use only plated copper alloy connectors or lugs:
1) Aluminum connectors or lugs are not acceptable for copper conductors.
c. Under those specific conditions where aluminum conductors have been allowed or are specified then the connectors for aluminum conductors shall be specifically designed for that purpose.
d. For wire No. 10 AWG and smaller use compression splice caps, with insulating caps:
1) Manufacturers: The following or equal:
a) Buchanan, 2006S or 2011S, with 2007 or 2014 insulating caps. e. For wire No. 8 AWG and larger, use heavy duty copper compression connectors:
1) Manufacturers: One of the following or equal:
a) Burndy.
b) Thomas & Betts.
f. Heat shrink tubing:
1) Suitable for indoors, outdoors, overhead, direct burial or submerged applications.
2) Minimum shrink ratio: 4 to 1.
3) Continuous operating temperature: -55 degrees Celsius to 110 degrees Celsius.
4) Internally applied adhesive sealant.
5) Cross-linked polyolefin:
a) Manufacturers: One of the following or equal:
(1) 3M, ITCSN.
(2) Thomas & Betts, Shrink-Kon.
2. Instrumentation class cable splices:
a. Suitable for indoor, outdoors, weather exposed, direct buried, or submersed applications.
b. Utilizing an epoxy, polyurethane, and re-enterable compounds. c. For use with shielded or unshielded plastic- and rubber-jacketed, signal, control, and power cables rated up to 1 kilovolt.
d. Two-part mold body with tongue and groove seams and built in spacer webbing.
e. Manufacturers: The following or equal:
1) 3M, Scotchcast 72-N.
C. Insulating tape:
1. General purpose insulating tape:
a. Minimum 7 mil vinyl tape.
b. Suitable for application in an ambient of -18 degrees Celsius (0 degrees Fahrenheit).
c. Operating range up to 105 degrees Celsius (220 degrees Fahrenheit).
Low Voltage Wire Connections
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pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/16150 (BidSetFinal) d. Flame retardant, hot- and cold- weather resistant, UV resistant. e. For use as a primary insulation for wire cable splices up to 600 VAC. f. Meeting and complying with:
1) ASTM D3005 Type I.
2) UL 510.
3) CSA C22.2.
g. Manufacturers: The following or equal:
1) 3M, Scotch Number Super 33+.
2. General-purpose color-coding tape:
a. Minimum 7 mil vinyl tape.
b. Suitable for application on PVC and polyethylene jacketed cables. c. For use indoors and outdoors in weather protected enclosures. d. Available with the following colors:
1) Red.
2) Yellow.
3) Blue.
4) Brown.
5) Gray.
6) White.
7) Green.
8) Orange.
9) Violet.
e. For use as phase identification, marking, insulating, and harnessing. f. Meeting and complying with:
1) UL 510.
2) CSA C22.2.
g. Manufacturers: The following or equal:
1) 3M, Scotch Number 35.
D. Power distribution blocks:
1. UL 1953 listed.
2. Interrupting ratings: Not less than the system maximum available fault current at the point of application.
3. Provide fuses or circuit breakers in enclosure as required to meet the fault current requirements.
4. Voltage rating: 600 VAC.
5. IP 20 finger safe enclosure.
6. Tin-plated aluminum or copper terminals suitable for copper conductors.
7. Manufacturers: One of the following or equal:
a. Eaton CHDB series.
b. Rockwell Automation 1492 PD series
c. Square D by Schneider Electric.
2.06 COMPONENTS (NOT USED)
2.07 ACCESSORIES (NOT USED)
2.08 MIXES (NOT USED)
2.09 FABRICATION (NOT USED)
Low Voltage Wire Connections
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2.10 FINISHES (NOT USED)
2.11 SOURCE QUALITY CONTROL (NOT USED)
PART 3 EXECUTION
3.01 EXAMINATION (NOT USED)
3.02 PREPARATION (NOT USED)
3.03 INSTALLATION
A. Load connections:
1. Connect loads to the circuits as indicated. Color-code all branch circuits as specified in Section 16123 - 600-Volt or Less Wires and Cables.
B. Zero to 600-volt systems:
1. Make all connections with the proper tool and die as specified by the device manufacturer.
2. Use only tooling and dies manufactured by the device manufacturer.
3. Insulate all connections and splices with Scotch 33+ tape and Scotchfill, or pre-molded plastic covers, or heat shrink tubing and caps.
4. Number all power and control wires before termination.
C. Motor connections (600 volts and below):
1. Terminate all leads and wires with compression type ring lugs.
2. Terminations on all motor leads, including leads that are connected together to accommodate the motor voltage, and the machine wires entering the motor terminal box from the power source, shall have ring type compression lugs.
3. Cover bolted connectors with a heat shrinkable, cross-linked polyolefin material formed as a single opening boot:
a. In damp and wet locations, use a complete kit containing mastic that shall seal out moisture and contamination.
b. Shrink cap with low heat as recommended by manufacturer.
4. Wire markers shall be readable after boot installation.
5. Manufacturers: The following or equal:
a. Raychem, MCK.
D. Power distribution terminal blocks:
1. Connect circuit breakers on line side of power distribution terminal blocks as required to meet short circuit requirements.
3.04 ERECTION, INSTALLATION, APPLICATION, CONSTRUCTION (NOT USED)
3.05 REPAIR/RESTORATION (NOT USED)
3.06 RE-INSTALLATION (NOT USED)
Low Voltage Wire Connections
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3.07 COMMISSIONING
A. As specified in Section 01756 - Commissioning.
3.08 FIELD QUALITY CONTROL (NOT USED)
3.09 ADJUSTING (NOT USED)
3.10 CLEANING (NOT USED)
3.11 PROTECTION (NOT USED)
3.12 SCHEDULES (NOT USED)
END OF SECTION
Utility Coordination
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UTILITY COORDINATION
PART 1 GENERAL
1.01 SUMMARY
A. Section includes:
1. Coordination with the utility companies to provide service.
2. Contractor’s responsibilities for connecting to utilities and providing utility service to the facilities.
3. Descriptions of utility services required.
B. Utility contacts:
1. Electric utility:
a. Name: Scott Bozzoli.
b. Utility: City of Ukiah - Electric Utility.
c. Address: 1350 Hastings Rd, Ukiah CA 95482.
d. Phone number: 707-467-5775.
e. Fax number: N/A.
f. E-mail: [email protected].
1.02 REFERENCES
A. Underwriters' Laboratories, Inc. (UL).
1.03 DELEGATED DESIGN (NOT USED)
1.04 SUBMITTALS
A. Furnish submittals as specified in Section 01330 - Submittal Procedures.
B. Certification:
1. Submit certification that the intended installation has been coordinated with the utility companies.
2. Include a narrative description of the utility’s requirements and points of connection, names and telephone numbers for contacts at the utilities.
C. Additional Requirements:
1. Submit the following after utility coordination and before construction for engineering review:
a. 12 kV underground conduit routing.
b. MV vault location and dimensions.
1.05 QUALITY ASSURANCE
A. Materials and equipment used in performance of Electrical Work shall be listed or labeled by UL, or other equivalent recognized independent testing laboratory, for the class of service intended.
Utility Coordination
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1.06 DELIVERY, STORAGE, AND HANDLING (NOT USED)
1.07 PROJECT OR SITE CONDITIONS
A. As specified in Section 01850 - Design Criteria.
1.08 ADMINISTRATIVE REQUIREMENTS
A. Scheduling:
1. General:
a. Before start of Site Work, make arrangements for temporary electrical service as required.
2. Electrical systems:
a. Before bidding, Contact the utilities to determine the Work and materials that will be required from the Contractor, and all fees and permits that will be required, so that all utility systems furnished by the Contractor will be included in the bid.
b. Coordinate Work with Engineer to minimize downtime of existing operating equipment and electrical distribution systems and to preclude unsafe operation:
1) Notify Owner 10 days before power interruptions.
2) Coordinate downtime with Owner and local electric utility. c. During the construction of the Project, the existing electrical service must remain fully functional in order to supply uninterrupted electrical power to the facility and its ancillary buildings and structures.
3. Before commencing Site Work, coordinate underground conduit installations with other Work to eliminate conflicts and avoid interferences with other underground systems.
1.09 WARRANTY
A. As specified in Section 01783 - Warranties and Bonds.
PART 2 PRODUCTS
2.01 GENERAL (NOT USED)
2.02 DESIGN AND PERFORMANCE CRITERIA
A. Electrical service:
1. Provide all Work and materials and bear all costs for providing temporary construction power and the permanent electrical service, including but not limited to:
a. All Work and materials to complete the 12 kV system shown in drawings.
Utility Coordination
16210-3 8660F10 April 2023
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/16210 (BidSetFinal) b. Contractor to cover cost of the following work to be performed by Ukiah Electric Utility (cost of work to be performed by Utility to be provided by City of Ukiah Electric Department):
1) Installation of 12 kV conductors upon completion of conduit installation by Contractor.
2) 12 kV switching procedures and loop configuration.
c. All permits and fees required by the electric utility.
B. General:
1. Coordinate and obtain inspections and final installation approval from the serving utilities and other authorities having jurisdiction.
2.03 MANUFACTURERS (NOT USED)
2.04 MATERIALS
A. Provide materials in accordance with the applicable requirements of the utilities and as specified in these Specifications.
2.05 MANUFACTURED UNITS (NOT USED)
2.06 EQUIPMENT
A. Provide equipment in accordance with the applicable requirements of the utilities and as specified in these Specifications.
PART 3 EXECUTION
3.01 INSTALLATION
A. Reference Ukiah Electric Utility typical detail drawings provided at the end of this specification section for work on 12 kV cables and conduits.
END OF SECTION
Utility Coordination
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ATTACHMENT A - COUED VAULT CONSTRUCTION DETAILS
PRIMARY VAULT 504-LA
16210 Attachment A-1 8660F10 April
2023
PRIMARY VAULT 504-FULL TRAFFIC
16210 Attachment A-2 8660F10 April
2023
Utility Coordination
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ATTACHMENT B - COUED EQUIPMENT GROUNDING DETAILS
VAULT AND PADMOUNT
EQUIPMENT GROUNDING
16210 Attachment B-1 8660F10 April 2023
PADMOUNT EQUIPMENT GROUNDING
16210 Attachment B-2 8660F10 April 2023
Utility Coordination
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ATTACHMENT C - COUED TYPICAL TRENCH DETAIL
CODE PART NO. MATERIAL QTY INITIALS CODE PART NO. MATERIAL QTY INITIALS 6" 12" MIN 6"
4'-0" MINIMUM
4"typ.
P
Center conduit
in Trench
PRIMARY CONDUIT
Trench depth varies with conduit size
in Trench
Center conduit
6" 12" MIN 6"
See Notes 1 & 2
38" MINIMUM
Sand
Bedding
Backfill4"
min.
S
SECONDARY CONDUIT
Trench depth varies with conduit size
24" MIN
58" MINIMUM 48" MINIMUM
18" MIN
6" 6"
T SL
G
4"typ.
typ.
3"
S
Trench depth varies with conduit size
JOINT UTILITY TRENCH 4" typ.
typ.
4"
P
S
6"
Trench depth varies with conduit size
6"
PRIMARY AND SECONDARY CONDUITS
Min. 2" A.C. Pavement
See Note 1
LEGEND
S = Secondary Conduit
P = Primary conduit18"
30"
40"
MINIMUM CLEARANCES BETWEEN UTILITIES
UTILITY G T C S P
G NA 12" 12" 6" 12"
T 12" NA 1" 1" 12"
C 12" 1" NA 12" 12"
S 6" 12" 12" NA 3"
P 12" 12" 12" 3" NA 24" 40" 30" 18" 6"
Min. 2" A.C. Pavement
See Note 1
LEGEND
C = Cable TV
G = Gas
T = Telephone
S = Secondary Conduit
P = Primary Conduit
LEGEND
S = Secondary conduit 18"
Min. 2" A.C. Pavement
See Note 1 40"
LEGEND
P = Primary conduit18"
Min. 2" A.C. Pavement
See Note 1
30"
NOTES:
1. USE CLASS 2 BASE AS BACKFILL IN IMPROVED AREAS.
NATIVE BACKFILL MAY BE USED IN UNIMPROVED AREAS
OUTSIDE CITY RIGHT-OF-WAY.
2. MINIMUM SEPARATION FROM OTHER UTILITY CONDUITS:
12" WHEN PARALLEL, 6" WHEN CROSSING.
Bedding
Sand
Backfill
See Notes 1 & 2
Bedding
Sand
Backfill
See Notes 1 & 2
Sand
Bedding
Backfill
See Notes 1 & 2
C
SL 6" 12" 12" 1" 3" SL = Street Light Conduit
P
6"
TYPICAL TRENCH DETAILS
16210 Attachment C-1 8660F10 April 2023
Low Voltage Motors up to 500 Horsepower
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pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/16222 (BidSetFinal) SECTION 16222
LOW VOLTAGE MOTORS UP TO 500 HORSEPOWER
PART 1 GENERAL
1.01 SUMMARY
A. Section includes:
1. Low voltage motors up to 500 horsepower (hp).
1.02 REFERENCES
A. As specified in Section 16050 - Common Work Results for Electrical.
B. American Bearing Manufacturers Association (ABMA):
1. 9 - Load Ratings and Fatigue Life for Ball Bearings.
2. 11 - Load Ratings and Fatigue Life for Roller Bearings.
C. American Petroleum Institute (API):
1. 670 - Machinery Protection Systems.
D. ASTM International (ASTM).
1. B117 - Standard Practice for Operating Salt Spray (Fog) Apparatus.
E. Institute of Electrical and Electronic Engineers (IEEE):
1. 43 - IEEE Recommended Practice for Testing Insulation Resistance of Rotating Machinery.
2. 112 - IEEE Standard Test Procedure for Polyphase Induction Motors and Generators.
3. 303 - Recommended Practice for Auxiliary Devices for Rotating Electrical Machines in Class I, Division 2 and Zone 2 Locations.
4. 841 - IEEE Standard for Petroleum and Chemical
Industry-Premium-Efficiency, Severe Duty, Totally Enclosed Fan-Cooled (TEFC) Squirrel Cage Induction Motors - Up to and Including 370 kW (500 hp).
5. 1349 - Guide for Application of Electric Motors in Class I, Division 2 and Class I, Zone 2 Hazardous (Classified) Locations.
F. National Electrical Manufacturers' Association (NEMA):
1. MG-1 - Motors and Generators.
2. MG-2 - Safety Standard for Construction and Guide for Selection, Installation, and Use of Electric Motors and Generators.
G. Underwriters Laboratories Inc. (UL):
1. 674 - Electric Motors and Generators for Use in Division 1 Hazardous (Classified) Locations.
1.03 DEFINITIONS
A. As specified in Section 16050 - Common Work Results for Electrical.
Low Voltage Motors up to 500 Horsepower
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1.04 SYSTEM DESCRIPTION
A. Furnish and install electric motors and accessories as specified in this Section and the Sections specifying driven equipment to provide a complete and operable installation.
1.05 SUBMITTALS
A. Furnish submittals as specified in Section 01330 - Submittal Procedures.
B. Submit completed motor data sheets for each motor supplied:
1. As specified in Attachment A - Motor Data Sheet.
2. Manufacturer’s or other data sheets are not acceptable.
C. Product data:
1. Descriptive bulletins.
2. Machine tag and loop number as indicated on the Drawings and in the specification section number of the driven machine.
3. Complete electrical data.
4. Manufacturer’s storage recommendations.
5. Torque, current, and power factor versus speed curves:
a. At 100 percent rated voltage for all full voltage started and VFD-driven motors.
b. For motors on reduced voltage start at 70, 80, 90, and 100 percent rated voltage.
6. Accessories data:
a. Power factor correction capacitors:
1) Size in KVAR, for all motors not connected to variable frequency drives.
b. Motor winding heaters:
1) Voltage.
2) Watts.
c. Winding temperature detectors:
1) Type.
2) Rating.
d. Moisture detectors.
7. Mechanical data:
a. Bearing design and bearing life calculations.
b. Resonant frequencies for all VFD-driven motors 50 hp or greater.
D. Shop drawings:
1. Motor weight.
2. Frame size.
3. Conduit box(es), size(s), and location(s).
4. Outline drawings with dimensions.
5. Installation details for the project seismic criteria.
E. Test reports:
1. Factory test reports with test reference standard identified.
Low Voltage Motors up to 500 Horsepower
16222-3 8660F10 April 2023
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/16222 (BidSetFinal) F. Certification:
1. When motors are driven by variable speed drive systems, submit certification that selected motor:
a. Is capable of satisfactory performance under the intended load. b. Meets the requirements of the latest edition of NEMA MG-1 Part 31.
G. Calculations:
1. Where site conditions specified in Section 01850 - Design Criteria exceed manufacturer’s ratings, provide derating calculations for each motor.
1.06 QUALITY ASSURANCE (NOT USED)
1.07 DELIVERY, STORAGE, AND HANDLING
A. Store motors in accordance with the manufacturer’s recommendations.
1.08 PROJECT OR SITE CONDITIONS
A. As specified in Section 01850 - Design Criteria.
1.09 SEQUENCING (NOT USED)
1.10 SCHEDULING (NOT USED)
1.11 WARRANTY
A. As specified in Section 01783 - Warranties and Bonds.
1.12 SYSTEM START-UP (NOT USED)
1.13 OWNER’S INSTRUCTION (NOT USED)
1.14 MAINTENANCE (NOT USED)
PART 2 PRODUCTS
2.01 MANUFACTURERS
A. One of the following or equal:
1. US Motors.
2. General Electric.
3. Reliance.
4. Toshiba.
5. Baldor.
2.02 EXISTING PRODUCTS (NOT USED)
2.03 MATERIALS (NOT USED)
2.04 MANUFACTURED UNITS (NOT USED)
Low Voltage Motors up to 500 Horsepower
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2.05 EQUIPMENT
A. 3-phase induction motors - general:
1. Voltage:
a. All motors 1/2 hp and larger shall be rated 460 V, 3-phase unless otherwise indicated on the Drawings.
b. Dual voltage motors rated 230/460 V, 3-phase are acceptable provided all leads are brought to the conduit box.
2. Motors driving identical machines shall be identical.
3. All motors greater than 1 hp and up to 500 hp shall meet the "NEMA Premium Efficiency" percent listed in NEMA MG-1.
4. Horsepower as indicated on the Drawings:
a. Horsepower ratings indicated on the Drawings are based on vendor’s estimates. Provide motors sized for the load of the actual equipment furnished without operating in the service factor.
5. Service factor:
a. 1.15 service factor on sine wave power.
b. 1.0 when driven by VFD.
6. Torque:
a. Provide motors that develop sufficient torque for acceleration to full speed at voltage 10 percent less than motor nameplate rating. b. When started using reduced voltage starters:
1) Provide motors that develop sufficient torque for acceleration to full speed.
c. NEMA Design B except where driven load characteristics require other than normal starting torque:
1) In no case shall starting torque or breakdown torque be less than the values specified in NEMA MG-1.
7. Enclosures:
a. As specified in the individual equipment Specifications or in this Section. b. Totally enclosed fan cooled:
1) Cast iron conduit box.
2) Tapped drain holes with Type 304 stainless steel plugs for frames 286 and smaller, and automatic breather and drain devices for frames 324 and larger.
c. Explosion-proof:
1) Tapped drain holes with corrosion resistant plugs for frames 286 and smaller and automatic breather and drain devices for frames 324 and larger.
d. Lifting devices: All motors weighing 265 pounds (120 kilograms) or more shall have suitable lifting devices for installation and removal.
8. Manufactured with cast iron frames in accordance with NEMA MG-1 or manufacturer’s standard material for the specified rating.
9. Nameplates:
a. Provide all motors with a permanent, stainless steel nameplate indelibly stamped or engraved with:
1) NEMA standard motor data.
a) Indicate compliance with NEMA MG-1 Part 31 for inverter duty motors.
2) AFBMA bearing numbers and lubrication instructions.
Low Voltage Motors up to 500 Horsepower
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10. Hardware:
a. Type 304 stainless steel.
11. Conduit boxes:
a. Cast iron or stamped steel.
b. Split from top to bottom.
c. Provide gaskets at the following interfaces:
1) Frames and conduit boxes.
2) Conduit boxes and box covers.
d. Rotatable through 360 degrees in 90-degree increments. 1) Where available based on the size of the conduit box. e. Exceeding the dimensions defined in NEMA MG-1.
f. Provide grounding lugs inside conduit boxes for motor frame grounding.
12. Motor bearings:
a. Antifriction.
b. Regreasable and initially filled with grease for horizontal motors and vertical motors per manufacturer’s standard design.
c. Bearings and lubrication suitable for ambient temperature and temperature rise.
d. Suitable for intended application and have ABMA L-10 rating life of 60,000 hours or more.
e. Fit bearings with easily accessible grease supply, flush, drain, and relief fittings using extension tubes where necessary.
f. Where specified in the equipment Specifications, provide split-sleeve type hydrodynamic radial bearings. Provide a bearing isolator to protect bearings from contaminants.
13. Insulation systems:
a. Motors installed in ambient temperatures between 40 degrees Celsius and 50 degrees Celsius:
1) Provide Class F insulation.
2) Design temperature rise consistent with Class B insulation. 3) Rated to operate at an ambient temperature of 50 degrees Celsius at the altitude where the motor will be installed.
14. Motor leads:
a. Insulated leads with non-wicking, non-hydroscopic material. Class F insulation.
15. Noise:
a. Maximum operating noise level in accordance with NEMA MG-1.
B. Vertical motors:
1. Enclosures:
a. Totally enclosed fan cooled (TEFC) for motors 200 hp and less installed outdoors.
2. Thrust bearings:
a. Selected for combined rotor and driven equipment loads. b. Coordinate with driven equipment supplier for maximum vertical thrust of driven equipment.
3. Anti-reverse ratchet.
C. Motors driven by variable frequency drives:
1. Compatible with the variable frequency drives specified.
2. Inverter duty rated and labeled.
Low Voltage Motors up to 500 Horsepower
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3. Meet the requirements of NEMA MG-1 Part 31.
4. Winding insulation meets the requirements of NEMA MG-1 Part 31.4.4.2.
5. Capable of running continuously at 1/10th of full speed, with no harmful effects or overheating.
6. Shaft grounding ring:
a. Provide a shaft grounding ring for each VFD-driven motor. b. Aluminum frame and internal components.
c. Conductive microfiber brushes.
d. Maintenance free design.
e. Aegis Bearing Protection ring as manufactured by Electro Static Technology or equal.
D. Motors installed in corrosive environments:
1. Nameplate indicating conformance to IEEE 841.
2. Stator double dipped in varnish and baked.
3. Stator and rotor coated with corrosion resistant epoxy.
4. Frame, brackets, fan guard and conduit box coated with minimum of 2 coats of epoxy paint.
5. Withstand salt spray tests in accordance with ASTM B117.
E. Single-phase motors:
1. Capacitor start type rated for operation at 115 volts, 60 hertz, unless otherwise specified or as indicated on the Drawings.
2. Totally enclosed fan cooled (TEFC) motors manufactured in accordance with NEMA MG 1.
3. Ball bearings: Sealed.
4. 1/2 hp or less fan motors:
a. Split-phase or shaded pole type when standard for the equipment. b. Open type when suitably protected from moisture, dripping water, and lint accumulation.
5. Wound rotor or commutator type single-phase motors only when their specific characteristics are necessary for application and their use is acceptable to the Engineer.
6. Integral overload protection.
2.06 COMPONENTS (NOT USED)
2.07 ACCESSORIES
A. Motor winding heaters:
1. Provide all 3-phase motors with belted or cartridge space heaters mounted within the motor enclosure.
2. Space heater rating shall be 120 volts, single-phase, unless otherwise indicated on the Drawings.
3. Power leads for heaters wired into conduit box.
4. Installed within motor enclosure adjacent to core iron.
Low Voltage Motors up to 500 Horsepower
16222-7 8660F10 April 2023
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/16222 (BidSetFinal) B. Winding temperature detectors:
1. Provide factory installed winding temperature detector with leads terminating in the conduit box:
2. Temperature switches with normally closed contacts as indicated on the Drawings.
2.08 MIXES (NOT USED)
2.09 FABRICATION (NOT USED)
2.10 FINISHES (NOT USED)
2.11 SOURCE QUALITY CONTROL (NOT USED)
PART 3 EXECUTION
3.01 EXAMINATION (NOT USED)
3.02 PREPARATION (NOT USED)
3.03 INSTALLATION
A. Install motors in accordance with manufacturer's instructions.
B. Install shaft grounding ring on VFD-driven motors in accordance with the manufacturer’s instructions.
3.04 ERECTION, INSTALLATION, APPLICATION, CONSTRUCTION (NOT USED)
3.05 REPAIR/RESTORATION (NOT USED)
3.06 RE-INSTALLATION (NOT USED)
3.07 COMMISSIONING AND PROCESS START-UP
A. As specified in Section 01756 - Commissioning.
B. Factory testing:
1. Motors less than 250 hp:
a. Perform manufacturer’s standard production tests including but not limited to:
1) No load current.
2) High potential test.
3) Winding resistance.
b. Furnish copies of standard test reports on prototype or identical units.
3.08 FIELD QUALITY CONTROL
A. Before start-up, perform insulation resistance test on each motor furnished or installed on this project:
1. Windings energized to 1,000 volts DC for 1 minute.
Low Voltage Motors up to 500 Horsepower
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2. Resistance measured at the end of the test, recorded, and submitted to the Engineer for review.
3. Inform the Engineer of any unusual or unacceptable test results.
4. This test is in addition to the acceptance tests in Section 16950 - Field Electrical Acceptance Tests.
3.09 ADJUSTING (NOT USED)
3.10 CLEANING (NOT USED)
3.11 PROTECTION (NOT USED)
END OF SECTION
Low Voltage Motors up to 500 Horsepower
16222-Attachment A 8660F10 April 2023
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/16222 (BidSetFinal)
ATTACHMENT A - MOTOR DATA SHEET
Low Voltage Motors up to 500 Horsepower
16222-Attachment A-1 8660F10 April 2023
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/16222 (BidSetFinal)
MOTOR DATA SHEET
MOTOR/ EQUIPMENT TAG MOTOR NUMBER
SPECIFICATION NUMBER OF DRIVEN MACHINE
MOTOR NAMEPLATE DATA
MANUFACTURER MODEL/SERIES MODEL NO.
FRAME ENCLOSURE NEMA DESIGN
HP SERVICE FACTOR RPM
INSULATION CLASS VOLTS FULL LOAD AMPS
AMBIENT TEMP PHASE NO LOAD AMPS
DESIGN TEMP HERTZ LOCK ROTOR AMPS
INRUSH CODE LETTER
100% LOAD 75% LOAD 50% LOAD
GUARANTEED MINIMUM EFFICIENCIES:
GUARANTEED MINIMUM POWER FACTOR:
MAXIMUM SIZE OF POWER FACTOR CORRECTION CAPACITOR: KVAR
ACCESSORIES
MOTOR WINDING HEATER VOLTS WATTS
WINDING THERMAL PROTECTION
WINDING TEMP SWITCHES (YES/NO)
RTD:
TYPE QUANTITY PER PHASE # OF WIRES
NOMINAL RESISTANCE NOMINAL TEMP COEFFICIENT
RECOMMENDED
ALARM
DEGREES
CELSIUS
RECOMMENDED
TRIP
DEGREES
CELSIUS
SPECIAL APPLICATIONS
INVERTER DUTY* (YES/NO) PART WINDING (YES/NO) WYE - DELTA (YES/NO) 2 SPEED, 1 WINDING (YES/NO) 2 SPEED, 2 WINDING (YES/NO) AREA CLASSIFICATION:
CLASS DIVISION GROUP TEMP CODE
*Conforms to NEMA MG-1 Part 31.
Variable Frequency Drives 0.50 - 50 Horsepower
16262-1 8660F10 April 2023
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/16262 (BidSetFinal) SECTION 16262
VARIABLE FREQUENCY DRIVES 0.50 - 50 HORSEPOWER
PART 1 GENERAL
1.01 SUMMARY
A. Section includes:
1. Variable frequency drives (VFD) 0.5 to 50 horsepower for control of NEMA Design B squirrel cage induction motors.
1.02 REFERENCES
A. As specified in Section 16050 - Common Work Results for Electrical.
B. International Organization for Standardization (ISO):
1. 9001 - Quality Management Systems - Requirements.
C. National Electrical Manufacturers Association (NEMA):
1. MGI, Part 31 – Motors with higher peak voltage capability.
D. Underwriters’ Laboratories (UL):
1. 508A - Standard for Safety for Industrial Control Panels.
2. 508C - Standard for Power Conversion Equipment.
1.03 DEFINITIONS
A. As specified in Section 16050 - Common Work Results for Electrical.
B. Specific definitions:
1. Point of common coupling: the point of common coupling for all harmonic calculation and field measurements for both voltage and current distortions is defined as the closest directly connected bus supplying power to the VFD.
1.04 SYSTEM DESCRIPTION
A. Design requirements:
1. Each VFD system consists of all components required to meet the performance, protection, safety, testing, and certification criteria of this Section.
2. The VFD system:
a. Is a fully integrated package.
b. Includes all material necessary to interconnect all VFD system elements, even if shipped separately.
3. Coordinate bearing protection methods with the supplier of the driven equipment.
Variable Frequency Drives 0.50 - 50 Horsepower
16262-2 8660F10 April 2023
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/16262 (BidSetFinal) B. Any modifications to a standard product necessary to meet this Section shall be made only by the VFD manufacturer:
1. Each VFD shall be completely factory pre-wired, assembled, and then tested as a complete system by the VFD manufacturer to ensure a properly coordinated, fully integrated drive system.
2. The VFD shall be capable of operating standard NEMA Design B motors. It is the responsibility of the VFD manufacturer to ensure that the drive will not damage motor insulation due to high carrier frequency, reflected wave, dv/dt or other drive electrical characteristics based upon the installed conditions:
a. Provide equipment necessary to mitigate potential damage to motor insulation.
b. Motors as specified in Section 16222 - Low Voltage Motors up to 500 Horsepower.
C. Performance:
1. Operating envelope:
a. Speed and torque requirements:
1) Provide a variable torque or constant torque VFD as required by the driven load.
2) The VFD shall be capable of producing a variable alternating voltage/frequency output to provide continuous operation over the 40 to 200 percent (25 to 120 hertz) speed range.
b. Current requirements:
1) Full rated current output on a continuous basis.
2) Variable torque VFD:
a) Minimum 110 percent current overload for 1 minute.
3) Constant torque VFD:
a) Minimum 150 percent current overload for 1 minute.
2. Minimum VFD system efficiency:
a. 96 percent when operating at the rated kW output.
a. VFD system efficiency shall be calculated as follows:
x 100
Power (Supply)
Power (Load) Efficiency (%) =
Power (Load) is the total power measured at the output terminals of the drive system, including VFD, output filters, or transformers. Power (Supply) is the total power measured at the input terminals of the VFD including input filters, line reactors, isolation transformers, harmonic distortion attenuation equipment and auxiliary equipment (e.g., controls, fans) for complete system operation.
3. Total power factor:
a. Minimum of 0.96 lagging across the entire speed range. b. At no speed shall the VFD have a leading power factor.
4. Frequency accuracy:
a. Minimum of within 0.01 percent.
5. Speed regulation:
a. Minimum of within 0.5 percent across the entire speed range.
Variable Frequency Drives 0.50 - 50 Horsepower
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1.05 SUBMITTALS
A. Furnish submittals as specified in Section 01330 - Submittal Procedures:
1. Custom prepared by the VFD manufacturer and specific for the equipment furnished.
B. Product data:
1. Manufacturer of the VFD.
2. Manufacturer of all components of the VFD.
3. Dimensions:
a. Height.
b. Width.
c. Depth.
d. Weight.
4. Nameplate schedule.
5. Bill of material.
6. Ratings:
a. Voltage.
b. Phase.
c. Input current.
d. Output current.
e. Interrupting rating.
f. Momentary current rating.
7. List of recommended spare parts.
8. Catalog cutsheets for major components.
9. Design data:
a. Efficiency and power factor values.
b. Certification that the drive is sized for the full nameplate motor horsepower and current of the driven load at the installed altitude and ambient temperature.
c. Certification that based upon VFD design, cable length to motor, and motor dielectric insulation level that the VFD will not damage motor insulation due to carrier frequency, reflected wave, dv/dt, or other VFD produced characteristics.
d. Certification that all electronic circuits and printed circuit boards are conformally coated.
10. For equipment installed in structures designated as seismic design category C, D, E, or F submit the following as specified in Section 01850 - Design Criteria:
a. Manufacturer’s statement of seismic qualification with substantiating test data.
b. Manufacturer’s special seismic certification with substantiating test data.
C. Shop drawings:
1. Complete plan and elevation drawings showing:
a. All dimensions.
b. Panel, sub-panel, and component layout indexed to the bill of material. c. Conduit connections.
2. Block diagram showing the basic control and protection systems specifying the protection, control, trip and alarm functions, the reference signals and commands and the auxiliary devices.
Variable Frequency Drives 0.50 - 50 Horsepower
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3. Complete schematic, wiring and interconnection diagrams showing connections to both internal and external devices:
a. Include terminal number and wire numbers.
4. Complete single-line and 3-line diagrams including, but not limited to, circuit breakers, motor circuit protectors, contactors, instrument transformers, meters, relays, timers, control devices, and other equipment comprising the complete system:
a. Clearly indicate device electrical ratings on the drawings.
D. Control descriptions and control logic program:
1. Provide control descriptions describing the full control functionality to be incorporated into the programming of the drive including the following:
a. Functionality in local and remote.
b. Software and hardware interlocks.
c. Control response upon loss and restoration of power.
2. Provide complete register list of all IO available to the Plant PCS.
3. Submit the completed control logic program for each and every device supplied.
4. Submit a list of all networking address tables.
5. Submit configuration settings in accordance with actual motor and field equipment being supplied.
E. Installation instructions:
1. Detail the complete installation of the equipment including rigging, moving, and setting into place.
2. For equipment installed in structures designated as seismic design category A or B:
a. Provide manufacturer’s installation instructions and anchoring details for connecting equipment to supports and structures.
3. For equipment installed in structures designated as seismic design category C, D, E, or F:
a. Provide project-specific installation instructions and anchoring details based on support conditions and requirements to resist seismic and wind loads as specified in Section 01850 - Design Criteria.
b. Submit anchoring drawings with supporting calculations. c. Drawings and calculations shall be stamped by a professional engineer registered in the state where the Project is being constructed.
F. Operation and maintenance manuals:
1. Spare parts list with supplier names and part numbers.
2. Startup and commissioning instructions and data.
3. Operating manuals:
a. Submit operating instructions and a maintenance manual presenting full details for care and maintenance of each model of VFD provided under this Contract.
4. Operating instructions:
a. Written descriptions detailing the operational functions of all controls on the front panel.
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5. Maintenance manual:
a. Furnish maintenance manuals with instructions covering all details pertaining to care and maintenance of all equipment as well as identifying all parts.
b. Manuals shall include, but are not limited to the following:
1) Adjustment and test instructions covering the steps involved in the initial test, adjustment, and start-up procedures.
2) Detailed control instructions which outline the purpose and operation of every control device used in normal operation.
3) All schematic wiring and external diagrams:
a) Furnish drawings in a reduced 11-inch by 17-inch format that are fully legible at that size.
G. Test forms and reports.
1. Submit complete factory acceptance test procedures and all forms used during the test.
2. Submit complete control description checklist and IO checklist organized by VFD for use during the control logic portion of the witnessed factory acceptance testing as well as the witnessed field acceptance testing.
H. Manufacturer’s Certificate of Installation and Functionality Compliance.
I. Manufacturer’s field reports:
1. Report listing the setting of all VFD adjustable parameters and their values after start-up.
J. Record Documents:
1. Certified Record Documents of equipment with information listed above.
1.06 QUALITY ASSURANCE
A. Qualifications:
1. Any third-party certification, safety or protection requirements shall be applied to the VFD system as a whole. Certification or protection of system elements or individual components by themselves is not acceptable.
2. VFDs shall be UL 508C listed and labeled:
a. UL 508C for individual units.
b. UL 508A for VFD systems in control panels.
3. Variable frequency drives shall be manufactured by the VFD manufacturer at its own facility which shall have a quality assurance program that is certified in conformance with ISO 9001.
1.07 DELIVERY, STORAGE, AND HANDLING
A. Ship the VFDs and associated equipment to the job site on a dedicated air ride vehicle that will allow the Contractor to utilize onsite offloading equipment:
1. VFDs shall be delivered to the site preassembled and wired.
B. Furnish temporary equipment heaters within the VFD to prevent condensation from forming.
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1.08 PROJECT OR SITE CONDITIONS
A. As specified in Section 01850 - Design Criteria.
1.09 SEQUENCING
A. Conduct Programming and Data Exchange Coordination Meeting.
B. Conduct factory acceptance test and submit certified test results for Engineer’s review.
C. Ship equipment to project site after successful completion of factory acceptance test.
D. Assemble equipment in the field.
E. Conduct field acceptance test and submit results for Engineer’s review.
F. Submit Manufacturers Certificate of Installation and Functionality Compliance.
G. Conduct Owner’s training sessions.
H. Commissioning and process start-up as specified in Section 01756 - Commissioning.
1.10 SCHEDULING (NOT USED)
1.11 WARRANTY
A. As specified in Section 01783 - Warranties and Bonds.
1.12 SYSTEM START-UP
A. The VFD manufacturer shall be responsible for start-up of the VFDs in the presence of the equipment suppliers, Contractor, Engineer, and Owner.
1.13 OWNERS INSTRUCTIONS (NOT USED)
1.14 MAINTENANCE
A. Spare parts:
1. The following spare parts shall be furnished:
a. 1 set of all power and control fuses for each VFD.
b. One complete main control key pad for each type and rated size of VFD. c. 1 spare fan for each VFD unit.
d. 2 sets of ventilation filters for each VFD unit (if applicable in VFD cabinet louvers).
e. 1 set of thyristors or power electronics for each type and rated size of VFD.
f. Any special dedicated tools for emergency service and troubleshooting. g. All hardware and software required for configuration, maintenance, troubleshooting, and inquiry of all drive parameters.
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2.01 MANUFACTURERS
A. One of the following or equal:
1. ABB ACS-880.
2.02 EXISTING PRODUCTS (NOT USED)
2.03 MATERIALS (NOT USED)
2.04 MANUFACTURED UNITS (NOT USED)
2.05 EQUIPMENT
A. General:
1. Sinusoidal pulse width modulated (PWM) type drive.
a. 6-pulse insulated gate bipolar transistor (IGBT) power section. b. Microprocessor based controls.
c. Line reactors.
d. Load reactor or dv/dt filter as required by motor cable length.
B. Ratings:
1. Voltage:
a. Input voltage as indicated on the Drawings.
C. Operational features:
1. Protective features:
a. Provide the following minimum protective features:
1) Motor overload protection.
2) Instantaneous overcurrent.
3) Instantaneous overvoltage.
4) Undervoltage.
5) Power unit overtemperature.
6) Phase loss.
7) VFD output short circuit.
2. Control mode:
a. Operation in either a constant volts/hertz or sensorless vector mode:
1) The control mode selectable using the programming keypad.
3. Frequency control:
a. Minimum of 3 selectable skip frequencies with adjustable bandwidths. b. Programmable minimum frequency.
c. Programmable maximum frequency.
4. Acceleration/deceleration:
a. Separately adjustable acceleration and deceleration rates:
1) Each rate adjustable from 0.01 to 1,800 seconds.
5. Spinning load:
a. The VFD shall be capable of determining the speed and direction of a spinning load, “catch” the load and accelerate or decelerate it without damage to the load.
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6. Programmable loss of signal:
a. Upon loss of speed reference the VFD shall be programmable to either:
1) Stop.
2) Maintain current speed.
3) Default to pre-selected speed.
7. Power interrupt ride-through:
a. The VFD shall be capable of continuous operation in the event of a power loss of 5 cycles or less.
8. Inputs/Outputs:
a. Manufacturer’s standard number the following:
1) Analog inputs:
a) Configurable as either 0 to 10 volts or 4 to 20 milliamperes. 2) Analog outputs:
a) Programmable 4 to 20 milliamperes isolated.
3) Discrete inputs:
a) Programmable.
4) Discrete outputs:
a) Programmable.
b) Form C relay contacts.
5) Potentiometer 3-wire input.
b. Provide additional inputs/outputs as required to meet the control functions indicated on the Drawings.
9. Communications:
a. Provide each VFD with a EtherNet I/P communications interface module.
10. Automatic control:
a. PID capability utilizing an internal or external setpoint:
1) Selectable setpoint source.
11. Diagnostics:
a. Store a minimum of 4 fault conditions in non-volatile memory on a first in-first out basis.
b. Operational parameters stored at the time of the fault:
1) Operating frequency.
2) Drive status.
3) Power mode.
c. Fault memory accessible via RS-232, RS-422, or RS-485.
12. Automatic restart:
a. User selectable automatic restart feature allowing the VFD to restart following a momentary power failure or other VFD fault:
1) Programmable for up to 9 restart attempts.
2) Adjustable time delay between restart attempts.
2.06 COMPONENTS
A. Enclosure:
1. NEMA Type 12 free-standing or floor mounted.
2. Provide cooling devices required to maintain the VFD within the manufacturer’s specified temperature limits for the Project conditions:
a. Provide cooling device failure alarm.
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1. Flange-mounted thermal magnetic circuit breaker.
2. Lockable in the OFF position.
C. Input Reactor:
1. 3 percent input line reactor.
D. Output Device:
1. 3 percent output load reactor.
2. dV/dt filter:
a. Common mode reduction: 30 percent minimum.
b. Motor terminal peak voltage limit: 150 percent of dc bus voltage with a motor lead length up to 1,000 feet.
c. Carrier frequency range: up to 12 khz.
d. Efficiency: 98 percent minimum.
e. Class H insulation minimum.
E. Keypad:
1. Provide each VFD with a keypad for programming and control.
2. Keypad requirements:
a. Password security to protect drive parameters.
b. Mounted on the door of the VFD enclosure.
c. Back-lit LCD:
1) Minimum of 2 lines with a minimum of 16 characters per line. d. Programming and display features language: English.
e. Capable of displaying the following parameters:
1) Speed (percent).
2) Output current (amperes).
3) Output frequency (hertz).
4) Input voltage.
5) Output voltage.
6) Total 3-phase kilowatt.
7) Kilowatt-hour meter.
8) Elapsed run time meter.
9) Revolutions per minute.
10) Direct current bus voltage.
3. In addition to all keys required for programming, provide the following controls on the keypad:
a. Auto/manual selector.
b. Start pushbutton.
c. Stop pushbutton.
d. Jog pushbutton.
e. Speed increment.
f. Speed decrement.
g. Forward/reverse selector.
h. Run LED indicator.
i. Program LED indicator.
j. Fault LED indicator.
4. Provide the VFD with the hardwired controls as indicated on the Drawings.
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pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/16262 (BidSetFinal) F. Control power transformer:
1. Furnish a control power transformer mounted and wired inside the VFD enclosure.
2. With primary and secondary fusing.
3. Sized to power all VFD controls and options as well as any external devices indicated on the Drawings including the motor winding heater.
2.07 ACCESSORIES
A. Metal oxide varistors:
1. Provide protection for the VFD against:
a. Line transients: 5,000 volt peak minimum.
b. Line to ground transients: 7,000 peak minimum.
B. Conformal coating:
1. Provide conformal coating material applied to electronic circuitry and printed circuit boards to act as a protection against moisture, dust, temperature extremes, and chemicals such as H2S and chlorine.
2.08 MIXES (NOT USED)
2.09 FABRICATION (NOT USED)
2.10 FINISHES
A. Enclosure finish shall be manufacturer’s standard gray.
2.11 SOURCE QUALITY CONTROL (NOT USED)
PART 3 EXECUTION
3.01 EXAMINATION (NOT USED)
3.02 PREPARATION (NOT USED)
3.03 INSTALLATION
A. Install the equipment in accordance with the accepted installation instructions and anchorage details to meet the seismic and wind load requirements at the Project site.
B. General:
1. Furnish all cables, conduit, lugs, bolts, expansion anchors, sealants, and other accessories needed to complete the installation of the VFD (free-standing or within motor control center).
2. Assemble and install the VFD in the locations and with the layouts indicated on the Drawings.
3. Perform work in accordance with manufacturer’s instructions and shop drawings.
4. Furnish components and equipment as required to complete the installation.
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5. Replace any hardware lost or damaged during the installation or handling to provide a complete installation.
6. Install free-standing enclosures on a raised concrete housekeeping pad:
a. Provide structural leveling channels in accordance with the manufacturer’s recommendations to provide proper alignment of the units. b. Weld and/or bolt the VFD frame to the leveling channels.
7. Provide openings in top or bottom of the VFD (free-standing or within motor control center) enclosure for conduit only, no additional openings will be allowed:
a. Improperly cut holes will require that the entire panel be replaced:
1) No hole closers or patches will be allowed.
8. Bundle circuits together and terminate in each unit:
a. Tie with nylon wire ties.
b. Label all wires at each end with wire numbers shown on the approved control drawings.
c. All connections to and from the VFD (free-standing or within motor control center) enclosure must be made via terminal blocks.
3.04 ERECTION, INSTALLATION, APPLICATION, CONSTRUCTION (NOT USED)
3.05 REPAIR/RESTORATION (NOT USED)
3.06 RE-INSTALLATION (NOT USED)
3.07 COMMISSIONING
A. As specified in Section 01756 - Commissioning.
B. Source testing (Factory Acceptance Tests):
1. Owner and Engineer will witness the Factory Acceptance Test as specified in Section 16050 - Common Work Results for Electrical.
2. General:
a. Incoming inspection of components and raw materials based on strategic supplier base and experience.
b. All VFDs furnished under this Section shall be tested and inspected as specified below. Testing of VFDs based on sampling plans is not allowed. c. The testing procedures specified are the minimum acceptable requirements. The manufacturer may perform additional tests at its discretion.
3. Failure of any component during testing requires repair of the faulted component and complete retest.
4. Tests:
a. Perform manufacturer's standard factory acceptance tests.
C. Provide Manufacturer’s Certificate of Installation and Functionality Compliance as specified in Section 01756 - Commissioning.
D. Owner training:
1. As specified in Sections 01756 - Commissioning and 16050 - Common Work Results for Electrical.
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3.08 FIELD QUALITY CONTROL
A. As specified in Section 16050 - Common Work Results for Electrical.
B. Provide the services of a VFD manufacturer representative for startup assistance and training:
1. Inspection and field adjustment:
a. Supervise the following and submit written certification that the equipment and controls have been properly installed, aligned, adjusted, and readied for operation.
2. Startup field testing:
a. Provide technical direction for testing, checkout, and startup of the VFD equipment in the field.
b. Under no circumstances are any portions of the drive system to be energized without authorization from the manufacturer's representative.
3.09 ADJUSTING
A. Make all adjustments as necessary and recommended by the manufacturer, Engineer, or testing firm.
B. Provide the services of a VFD manufacturer factory technician to make all drive parameters and protective device settings:
1. Protective device settings provided by the VFD manufacturer in accordance with the manufacturer of the driven equipment requirements.
2. Provide documentation of VFD settings included but not limited to:
a. Minimum speed.
b. Maximum speed.
c. Skip speeds.
d. Current limit.
e. Acceleration time.
f. Deceleration time.
C. Programming:
1. Manufacturer/supplier may contract with the project Programmer for portions of the tasks below.
2. Provide all gateway communications between the drive to the Owner's control system as required.
3. Provide all control logic as indicated in the control descriptions.
4. Configure all network communications with applicable security settings, IP addresses and any other addressing tables required to provide a fully functioning system.
5. Coordinate all IP addresses with the Owner.
6. Coordinate data exchange approach for efficient communications to the Owner's control and maintenance systems. This effort will include a coordination meeting to discuss the data exchange approach including formatting and mapping.
7. Provide witnessed source testing to prove out all Overload control logic as well as interaction with Owner’s control and maintenance systems at the supplier's facility. ICSC/Programmer shall attend witnessed testing.
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3.10 CLEANING
A. As specified in Section 16050 - Common Work Results for Electrical.
3.11 PROTECTION (NOT USED)
3.12 SCHEDULES (NOT USED)
END OF SECTION
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REDUCED HARMONIC VARIABLE FREQUENCY DRIVES
PART 1 GENERAL
1.01 SUMMARY
A. Section includes:
1. Reduced harmonic 18 pulse or active front end, variable frequency drives (VFD), 60 to 500 hp for control of standard NEMA Design B squirrel cage induction motors.
1.02 REFERENCES
A. Definitions:
1. AFE: Active Front End.
2. ULH: Ultra-Low Harmonics
3. IGBT: Insulated Gate Bipolar Transistor.
4. VFD: Variable Frequency Drive.
B. Standards:
1. National Electrical Manufacturers Association (NEMA):
a. 250 - Enclosures for Electrical Equipment (1,000 V Maximum).
2. Underwriters’ Laboratories, Inc. (UL):
a. 508A - Standard for Safety for Industrial Control Panels.
1.03 DELEGATED DESIGN
A. As specified in Section 01357 - Delegated Design Procedures.
B. Anchoring and bracing.
1.04 SUBMITTALS
A. Furnish submittals as specified in Section 01330 - Submittal Procedures:
1. Custom prepared by the VFD manufacturer and specific for the equipment furnished.
B. Product data:
1. Manufacturer of the VFD.
2. Manufacturer of all components of the VFD.
3. Dimensions:
a. Height.
b. Width.
c. Depth.
4. Weight.
5. Nameplate schedule.
6. Bill of material.
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7. Ratings:
a. Voltage.
b. Phase.
c. Input current.
d. Output current.
e. Interrupting rating.
f. Momentary current rating.
8. Catalog cutsheets for major components.
9. Surge protection data.
10. Design data:
a. Efficiency and power factor values.
b. Certification that the drive is sized for the full nameplate motor hp and current (at rated RPM) of the driven load at the installed altitude. c. Certification that based upon VFD design, cable length to motor, and motor dielectric insulation level that the VFD will not damage motor insulation due to carrier frequency, reflected wave, dv/dt, or other VFD produced characteristics.
d. Certification that all electronic circuits and printed circuit boards are conformably coated.
e. Certification that the VFD will operate with all power sources (including alternate utilities and on-site generation when applicable).
11. List of recommended spare parts.
12. For equipment installed in structures designated as seismic design category C, D, E, or F submit the following as specified in Section 01850 - Design Criteria:
a. Manufacturer’s statement of seismic qualification with substantiating test data.
b. Manufacturer’s special seismic certification with substantiating test data.
C. Shop drawings:
1. Complete plan and elevation drawings showing:
a. All dimensions.
b. Panel, sub-panel and component layout indexed to the bill of material. c. Conduit connections.
d. Required clearance around equipment.
2. Block diagram showing the basic control and protection systems identifying the protection, control, trip and alarm functions, the reference signals and commands and the auxiliary devices.
3. Complete schematic, wiring and interconnection diagrams showing connections to both internal and external devices:
a. Wiring diagrams shall include terminal number and wire numbers.
4. Complete 1-line and 3-line diagrams including, but not limited to, circuit breakers, motor circuit protectors, contactors, instrument transformers, meters, relays, timers, control devices, and other equipment comprising the complete system:
a. Device electrical ratings shall be clearly indicated on the Drawings.
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pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/16265 (BidSetFinal) D. Delegated design submittals:
1. Anchoring and bracing: Provide project-specific calculations based on support conditions and requirements to resist loads specified in Section 01850 - Design Criteria:
a. To structures for equipment installed in structures designated as seismic design category C, D, E, or F.
b. For equipment installed outdoors.
E. Installation instructions:
1. Detail the complete installation of the equipment including rigging, moving, and setting into place.
2. Provide manufacturer’s installation instructions.
F. Commissioning submittals:
1. As specified in Section 01756 - Commissioning, including the following:
a. Manufacturer’s representative qualifications.
b. Certificates:
1) Requirements as specified in this Section.
c. Test Plans:
1) Test requirements as specified in this Section.
d. Test Reports.
e. Manufacturer’s representatives field notes and data. f. Owner training.
G. Certifications:
1. Certification letter from the VFD manufacturer stating that the VFD(s) are capable of operating with all new and existing sources (utility sources and on-site generation in possible operating configurations).
2. Certification letter from the VFD manufacturer stating that the VFD(s) are capable of operating with all new and existing VFDs in the existing and new distribution system.
H. Control descriptions and control logic program:
1. Provide control descriptions describing the full control functionality to be incorporated into the programming of the drive including the following:
a. Functionality in local and remote.
b. Software and hardware interlocks.
c. Control response upon loss and restoration of power.
2. Provide complete register list of all IO available to the Plant PCS.
3. Submit the completed control logic program for each and every device supplied.
4. Submit a list of all networking address tables.
5. Submit configuration settings in accordance with actual motor and field equipment being supplied.
I. Installation instructions:
1. Detail the complete installation of the equipment including rigging, moving, and setting into place.
2. Provide manufacturer’s installation instructions.
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1. Harmonic study:
a. A preliminary harmonic analysis shall be performed:
1) A power system short circuit ratio of 20 shall be used. 2) All VFDs shall be assumed to be operating at maximum speed and maximum load.
3) The short circuit current (ISC) utilized for the harmonic analysis calculations is defined as:
a) ISC = 20 * (Sum Total Full Load Amps of all VFDs).
b. A separate harmonic analysis shall be performed based on the standby generator system. Coordinate with the generator manufacturer and the VFD manufacturer so the actual characteristics for the generator supplied, or existing, for this Project are used in the harmonic analysis.
2. Detailed calculations or details of the actual physical testing performed on the VFD to prove the VFD is suitable for the seismic conditions at the Project Site.
K. Test forms and reports:
1. Submit complete field acceptance test procedures and all forms used during the test:
a. Testing performed by independent organization as specified in Section 16950 - Field Electrical Acceptance Tests.
2. Submit complete control description checklist and IO checklist organized by VFD for use during the control logic portion of the witnessed field acceptance testing.
L. Record documents:
1. Certified record documents of all equipment with information listed above.
M. Manufacturer’s field reports:
1. Certification letter from the VFD manufacturer that the VFD(s) has been inspected and installed in accordance with the manufacturer’s requirements.
2. Report listing the setting of all VFD adjustable parameters and their values after start-up.
3. Certification letter from the VFD manufacturer stating that the VFD(s) are programmed to avoid system resonances when connected to the standby generator and will not conflict with generator system voltage regulator.
N. Operation and maintenance manuals:
1. Spare parts list with supplier names and part numbers.
2. Start-up and commissioning instructions and data.
3. Complete bill of material indexed to the drawings, identifying the catalog or part numbers, manufacturer, and quantities of components of the VFD system.
4. Operating manuals:
a. Submit operating instructions and a maintenance manual presenting full details for care and maintenance of each model of VFD provided under this Contract.
5. Operating instructions:
a. The written descriptions shall detail the operational functions of all controls on the front panel including keypad functions and parameters.
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6. Maintenance manual:
a. Furnish maintenance manuals with instructions covering all details pertaining to care and maintenance of all equipment as well as identifying all parts.
b. Manuals shall include but are not limited to the following:
1) Adjustment and test instructions covering the steps involved in the initial test, adjustment and start-up procedures.
2) Detailed control instructions that outline the purpose and operation of every control device used in normal operation.
3) All schematic wiring and external diagrams:
a) Furnish drawings in a fully legible reduced 11-inch by 17-inch format.
1.05 QUALITY ASSURANCE
A. Qualifications:
1. Any third-party certification, safety or protection requirements shall be applied to the VFD system as a whole. Certification or protection of system elements or individual components by themselves is not acceptable.
2. VFDs shall be UL 508C listed and labeled.
3. VFD systems (packaged VFD panels) shall be UL 508A listed and labeled.
4. VFDs shall be manufactured by the VFD manufacturer at its own facility, which shall have a quality assurance program that is certified in accordance with ISO 9001.
1.06 DELIVERY, STORAGE, AND HANDLING
A. Ship VFDs to the job site on a dedicated air ride vehicle that will allow the Contractor to utilize on site off-loading equipment:
1. VFDs shall be delivered to the site pre-assembled and wired.
2. Ship each VFD with 2 tamperproof accelerometers that record the maximum shock and vibration experienced by the VFD during shipping and handling.
B. Furnish temporary equipment heaters within the VFD to prevent condensation from forming.
1.07 PROJECT OR SITE CONDITIONS
A. As specified in Section 01850 - Design Criteria.
1.08 ADMINISTRATIVE REQUIREMENTS
A. Sequencing:
1. Conduct Programming and Data Exchange Coordination Meeting.
2. Assemble equipment in the field.
3. Conduct field acceptance tests including harmonic testing and submit results for Engineer’s review:
a. All utility power sources and on-site generation shall be installed and operable for field test.
4. Submit manufacturer’s certification that equipment has been properly installed and is fully functional for Engineer’s review.
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5. Conduct Owner’s training sessions.
6. Commissioning and process start-up as specified in Section 01756 - Commissioning.
1.09 WARRANTY
A. As specified in Section 01783 - Warranties and Bonds.
B. Extended warranty:
1. Provide an additional 2 years manufacturer’s warranty from date of startup for all equipment provided under this Section.
1.10 SYSTEM START-UP
A. The VFD manufacturer shall be responsible for start-up of the VFDs in the presence of the equipment suppliers, Contractor, Engineer, and Owner.
1.11 MAINTENANCE
A. Maintenance service: Manufacturer shall describe the field service system available to support the proposed VFD system. As a minimum describe:
1. Type of technical support available (e.g., system engineering and technician).
2. Location of field service personnel.
3. Field service daily rates in dollars per hour and dollars per day.
4. Guaranteed response times to service requests.
B. Spare parts:
1. The following spare parts shall be furnished:
a. 1 complete VFD of each size furnished.
b. 1 set of all power and control fuses for each VFD.
c. 1 spare fan for each VFD unit.
d. 2 sets of ventilation filters for each VFD unit (if applicable in VFD cabinet louvers).
e. Any special dedicated tools for emergency service and troubleshooting. f. All hardware and software required for configuration, maintenance, troubleshooting and inquiry of all drive parameters.
PART 2 PRODUCTS
2.01 GENERAL (NOT USED)
2.02 DESIGN AND PERFORMANCE CRITERIA
A. Provide equipment and components that are fully rated for the site elevation and operating environment where the equipment will be installed as specified in Section 01850 - Design Criteria and as indicated on the Drawings.
B. Non-conditioned spaces:
1. For equipment located in non-conditioned spaces, provide additional temperature conditioning equipment to maintain the equipment temperature
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C. Outdoor installations:
1. Provide conditioning equipment incorporated into the equipment to maintain the enclosures within the equipment manufacturer’s specified operating ranges.
D. Design requirements:
1. Each VFD system shall consist of all components required to meet the performance, protection, safety, testing and certification criteria of this Section.
2. The VFD system:
a. Is a fully integrated package.
b. Includes all material necessary to interconnect VFD system elements, even if shipped separately.
3. Any modifications to a standard product necessary to meet this Section shall be made only by the VFD manufacturer.
4. Each VFD shall be completely factory pre-wired, assembled and then tested as a complete package by the VFD manufacturer to ensure a properly coordinated, fully integrated drive system.
5. The VFD shall be capable of operating standard NEMA Design B motors. It is the responsibility of the VFD manufacturer to ensure that the drive will not damage motor insulation due to high carrier frequency, reflected wave, dv/dt or other drive electrical characteristics:
a. The VFD manufacturer shall furnish equipment necessary to mitigate potential damage to motor insulation.
b. Coordinate bearing protection methods with the supplier of the driven equipment.
c. Motors as specified in Section 16222 - Low Voltage Motors up to 500 hp.
E. Performance:
1. Operating envelope:
a. Speed and torque requirements:
1) Provide a variable torque or constant torque VFD as required by the driven load.
2) The VFD shall be capable of producing a variable alternating voltage/frequency output to provide continuous operation over the 40 to 110 percent (25 to 66 hertz) speed range.
b. Current requirements:
1) Provide 100 percent of rated output current on a continuous basis. 2) Variable torque VFD:
a) Minimum 110 percent current overload for 1 minute.
3) Constant torque VFD:
a) Minimum 150 percent current overload for 1 minute.
Reduced Harmonic Variable Frequency Drives
16265-8 8660F10 April 2023
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2. Harmonics:
a. The VFD shall meet the following distortion limits at 2 percent line voltage unbalance measured at the input terminals of the VFD:
1) Voltage harmonics: The maximum allowable total harmonic distortion, THD, for each VFD shall not exceed 5 percent. 2) Current harmonics: The maximum allowable total harmonic current distortion limit, TDD, for each VFD shall not exceed 5 percent as measured at the input terminals of the VFD system.
3. Efficiency:
a. VFD system minimum efficiency shall be 93 percent at rated kilowatt output of the VFD. VFD system efficiency shall be calculated as follows:
Efficiency (%) = Power (Load) X 100 Power (Supply)
b. Power:
1) Load power is the total 3-phase power measured at the output terminals of the drive system, including the output filter. 2) Supply power is the total power measured at the input terminals of the VFD including phase shifting transformer or active front end components and auxiliary equipment (e.g., controls, fans) for complete system operation.
4. Total power factor:
a. Minimum of 0.96 lagging across the entire speed range. b. Under no operating conditions shall the VFD have a leading power factor.
5. Frequency accuracy:
a. Minimum of within 0.01 percent.
6. Speed regulation:
a. Minimum of within 0.5 percent across the entire speed range.
7. Capable of working with all available power sources (utility and on-site generation) and with all new and existing VFDs.
2.03 MANUFACTURERS
A. One of the following or equal:
1. ABB ACS880-3x (ULH Drive)
2.04 MATERIALS (NOT USED)
2.05 MANUFACTURED UNITS (NOT USED)
2.06 EQUIPMENT
A. General:
1. Sinusoidal pulse width modulated, (PWM), voltage source type drive shall consist of the following:
a. Rectifier section.
b. Direct current link with capacitors.
c. Insulated gate bipolar transistor (IGBT), inverter section. d. Microprocessor based controls.
e. Output filter.
Reduced Harmonic Variable Frequency Drives
16265-9 8660F10 April 2023
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2. Rectifier section:
a. Active front end rectifier (non-regenerative) – Ultra-low Harmonics:
1) IGBT based converter module:
a) Six IGBTs minimum.
2) Inductor/capacitor/inductor, LCL, harmonic filter:
a) Low pass filter.
b) Installed within same enclosure as VFD.
B. Ratings:
1. Voltage:
a. Input voltage: 480 Volts plus or minus 10 percent, 3-phase, 3-wire, 60 hertz.
b. Solidly grounded.
2. Short-circuit rating:
a. 65 kA RMS symmetrical.
C. Operational features:
1. Protective features:
a. Annunciated at the keypad and available via network connection. b. Include the following protective features:
1) Motor overload protection.
2) Instantaneous overcurrent.
3) Instantaneous overvoltage.
4) Undervoltage.
5) Power unit overtemperature.
6) Phase loss.
7) VFD output short circuit.
8) VFD output ground fault.
9) Blown fuse with blown fuse indication.
10) IGBT protection.
11) Cooling fan failure.
12) Component failure.
13) Motor overtemperature protection:
a) Winding and bearing temperature:
(1) From 100 ohm, platinum RTDS.
(2) Quantity as specified in Section 16222 - Low Voltage Motors up to 500 hp and the driven equipment specification or as indicated on the Drawings.
2. Control mode:
a. The VFD shall operate in either a constant volts/hertz or sensorless vector mode. Selectable using the programming keypad.
3. Frequency control:
a. Minimum of 3 selectable skip frequencies with adjustable bandwidths. b. Programmable minimum frequency.
c. Programmable maximum frequency.
4. Acceleration/Deceleration:
a. Separately adjustable acceleration and deceleration rates. b. Each rate shall be adjustable from 0.01 to 1,800 seconds.
5. Spinning load:
a. Capable of determining the speed and direction of a spinning load, “catch” the load and accelerate or decelerate it without damage to the load.
Reduced Harmonic Variable Frequency Drives
16265-10 8660F10 April 2023
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/16265 (BidSetFinal)
6. Programmable loss of signal:
a. Upon loss of reference speed signal the VFD shall be programmable to either stop, maintain current speed, or default to preselected speed.
7. Power interrupt ride through:
a. Capable of continuous operation in the event of a power loss of 5 cycles or less.
8. Hardwired inputs and outputs:
a. Manufacturer’s standard number the following:
1) Analog inputs:
a) Configurable as either 0 to 10 volts or 4 to 20 milliamperes. 2) Analog outputs:
a) Programmable 4 to 20 milliamperes isolated.
3) Discrete inputs:
a) Programmable.
4) Discrete outputs:
a) Programmable.
b) Form C relay contacts.
5) Potentiometer 3-wire input.
b. Provide additional inputs and outputs as required to meet the control functions indicated on the Drawings.
9. Communications:
a. Provide each VFD with a EtherNet/IP communications interface module. b. The use of gateways is not acceptable.
10. Real-time clock:
a. Capable of providing time-stamped events.
b. Set locally or via a remote controller.
c. Programmable for day, month, year, local time zones in hours, minutes and seconds.
11. Diagnostics:
a. Minimum of 4 fault conditions in memory on a first in-first out basis. b. Time stamped.
c. Operating frequency, drive status and power mode shall also be stored at the time of the fault.
d. Fault memory shall be maintained in the event of a power outage. e. The fault memory shall be accessible via Ethernet/IP.
12. Automatic restart:
a. User selectable, automatic restart feature allowing the VFD to restart following a momentary power failure or other VFD fault:
1) Programmable for up to 9 automatic restart attempts with an adjustable time delay between restart attempts.
2.07 COMPONENTS
A. Enclosure:
1. NEMA Type 12.
2. Provide cooling devices required to maintain the VFD within the manufacturer’s specified temperature limits for the Project conditions:
a. Provide cooling device alarm.
Reduced Harmonic Variable Frequency Drives
16265-11 8660F10 April 2023
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/16265 (BidSetFinal) B. Power disconnect:
1. Flange mounted thermal magnetic circuit breaker:
a. Lockable in the OFF position.
C. Output filter:
1. 3 percent load reactor.
D. Keypad:
1. Furnished with a keypad for programming and control.
2. Password security to protect drive parameters.
3. Mounted on the door of the VFD.
4. Back-lit LCD with a minimum of 2 lines of a minimum of 16 characters each.
5. Programming and display features language: English.
6. Capable of displaying the following parameters:
a. Speed (percent).
b. Input current (amperes).
c. Output current (amperes).
d. Output frequency (hertz).
e. Input voltage.
f. Output voltage.
g. Total 3-phase kilowatt.
h. Kilowatt hour meter.
i. Elapsed run time meter.
j. Revolutions per minute.
k. Direct current bus voltage.
7. In addition to all keys required for programming, the keypad shall have the following:
a. Automatic/Manual selector.
b. Start pushbutton.
c. Stop pushbutton.
d. Jog pushbutton.
e. Speed increment.
f. Speed decrement.
g. Forward/Reverse selector.
h. RUN indicator.
i. PROGRAM indicator.
j. FAULT indicator.
k. DRIVE READY indicator.
l. Diagnostics.
8. Provide the VFD with the hardwired controls indicated on the Drawings.
E. Control power transformer:
1. Furnish a control power transformer mounted and wired inside the drive enclosure:
a. Primary and secondary fusing.
2. Size the transformer to supply power to all VFD controls and options as well as any external devices indicated on the Drawings including the motor winding heater.