1. SSPC-SP16 Brush-off Blast Cleaning of Coated and Uncoated Galvanized Steel, Stainless Steels, and Non -Ferrous Metals: Not for carbon steel. Requires sweep blasting of the entire surface to remove all foreign matter. Dense and uniform surface profile is required.
2. The type and size of abrasive shall be selected to produce a surface profile that meets the coating manufacturer's recommendation for the particular coating and service conditions.
F. Wood Substrates:
1. Wood surfaces to be painted shall be cleaned of dirt, oil or other foreign substances with mineral spirits, scrapers, sandpaper or wire brush. Seal knots and pitch pockets with shellac reduced with equal parts of shellac thinner (denatured alcohol) before sandpaper finishing with fine grit and remove sanding dust. After the prime coat is dry, fill cracks and holes with putty or spackling compound. When filler is hard, sand flush with the surface using fine grit sandpaper. Sand lightly between coats with fine grit, open -coated sandpaper.
G. PVC Substrates:
1. PVC surfaces to be painted shall be clean, dry and free of oil, grease, and other contaminants and lightly sanded to create a surface for coating to adhere to.
H. Concrete and Masonry Substrates:
1. All surfaces must be clean, dry and free of oil, grease and other contaminants, prior to preparation in accordance with NACE No. 6/SSPC-SP13. Concrete surfaces must be sound and capable of supporting the coating system.
2. Prepare concrete surfaces in accordance with NACE No. 6/SSPC-SP13 Joint Surface Preparation Standards and ICRI Technical Guidelines. Shot -blast or mechanically abrade concrete surfaces to remove laitance, curing compounds, hardeners, sealers, existing coatings, and other contaminants and to provide the recommended ICRI-CSP Profile.
3. Cracks, voids and other surface imperfections should be filled with the recommended filler or surfacer prior to the installation of the materials.
4. Treat control joints and other nonmoving substrate cracks to prevent cracks from reflecting through the coating system according to manufacturer's written recommendations.
5. Level or grind concrete substrates to produce a uniform and smooth surface, including removal of sharp edges, ridges, form fins, and other concrete protrusions.
6. All surfaces to be painted or repainted, shall be repaired, cleaned and finished to the standards as specified herein and in Division 3 for new concrete.
I. Gypsum Drywall:
1. Sand joint compound with fine grit, open -coated sandpaper to provide a smooth flat surface.
Avoid heavy sanding of the adjacent wall board surfaces, which will raise the nap of the paper covering. Remove dust from the surface by wiping with clean rags or other means. If additional joint finishing is required to provide a smooth surface, the same joint compound of a ready -mixed spackling compound should be used. Putty, patching pencils, caulking or masking tape should not be applied to dry wall surfaces to be painted. Finish level 4 or 5 must be achieved prior to beginning to paint. Level shall be suitable for coating system to be applied.
2. Lightly scuff -sand tape joints after priming to remove raised paper nap. Take care not to sand through the prime coat and remove dust by wiping with clean rags.
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MESA LIFT STATION UPGRADE 098000-17
3.4 APPLICATION
A. Apply coatings in accordance with manufacturer's written instructions as outlined in the product data sheet, application guides and technical bulletins.
B. The application of coatings to steel substrates shall be in accordance with SSPC PA1 - Shop, Field, and Maintenance Painting of Steel.
C. All painting shall be done by skilled and experienced craftsmen and shall be of highest quality workmanship. Coating systems shall be as specified herein.
D. Use application equipment, tools, pressure settings, and techniques in accordance with manufacturer's instructions.
E. Uniformly apply coatings at spreading rate required to achieve specified Dry Film Thickness (DFT).
F. Apply coatings to be free of film characteristics or defects that would adversely affect performance or appearance of coating systems
G. Paint back sides of access panels and removable or hinged covers to match the exposed surfaces.
H. Equipment manufacturer or supplier shall provide touch-up paint for items with shop applied finish coats.
L Where specified in the individual sections, primer coat(s) shall be applied in the shop by the equipment manufacturer. The shop coats shall be as specified and shall be compatible with the field coat or coats.
J. Certification: The Contractor shall obtain from the equipment manufacturer or supplier, prior to shipment of equipment, a written certification that surface preparation, coating brand, material, DFT and application method complied with this section.
K. If the shop applied coating is in good condition, as determined by the Engineer, the field application may consist of touching up the shop primer coat to achieve the specified film thickness in accordance with the product data sheet.
1. The Owner/Engineer reserves the option, however, to require that badly damaged and poorly applied shop coatings be removed and the surfaces recoated in accordance with the specified system requirements.
L. Shop applied coatings of unknown composition shall be completely removed before the indicated coatings are applied.
1. Valves, castings, ductile or cast iron pipe, and fabricated pipe or equipment shall be examined for the presence of shop -applied temporary coatings. If present, this coating shall be removed.
M. Shop primed equipment shall be prepared as per manufacturer's recommendations in the field before finish coats are applied.
N. Shop Applied Bituminous Paint or Asphalt Varnish: Abrasive blast clean shop applied bituminous paint or asphalt varnish from surfaces scheduled to receive non -bituminous coatings.
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MESA LIFT STATION UPGRADE 098000-18
O. In accordance with SSPC-PA1 1 Protecting Edges, Crevices, and Irregular Steel Surfaces by Stripe Coating shall be applied to edges, angles, weld seams, flanges, nuts and bolts, and other places where insufficient film thicknesses are likely to be present.
P. Each coat of paint shall be of a slightly different shade, to facilitate inspection of surface coverage of each coat.
Q. Sprayed Finishes: Spray paint finish doors, frames and windows, where required. Brush or roller finishes will not be acceptable.
R. Install piping markers and safety signs only after painting and finish work is completed.
3.5 FIELD QUALITY CONTROL, INSPECTION AND TESTING
A. The Applicator shall perform the quality control procedures listed below in conjunction with the requirements of this section.
B. Inspect materials upon receipt to ensure that products are supplied by the approved Manufacturer.
C. Surface Profile and Degree of Surface Cleanliness: Inspect and record substrate profile (anchor pattern) and degree of cleanliness. Surfaces shall meet the manufacturer's recommended anchor profile and degree of blast cleaning.
1. Visually confirm the specified degree of surface cleanliness of the ferrous metal surface in accordance with SSPC-VIS 1.
2. The specified surface profile of the prepared substrate shall be verified in accordance with ASTM D4417 — Method C Replica Tape or NACE RP0287.
D. Concrete Surface Profile: Inspect and record substrate profile. Surface profile shall be equal to the manufacturer's recommendation in accordance with ICRI Guideline 310.2 and SSPC-SP13/NACE No.
6. 1. Compare the substrate profile once every 50 square feet with the Concrete Surface Profile (CSP) comparators in accordance with ICRI Guideline No. 310.2.
E. Concrete Moisture Testing: After surface preparation verify concrete dryness in accordance with one or more of the following moisture tests.
1. ASTM F1869 — Standard Test Method for Measuring Moisture Vapor Emission Rate of Concrete Subfloor Using Anhydrous Calcium Chloride.
a. Moisture vapor transmission not to exceed three pounds per 1,000 square feet in a 24 -hour period.
2. ASTM F2170 — Standard Test Method for Determining Relative Humidity in Concrete Floor Slabs Using in situ Probes.
a. Relative humidity not to exceed 80 percent.
3. ASTM D4263— Standard Test Method for Indicating Moisture in Concrete by the Plastic Sheet Method.
CITY OF BEAUMONT PROTECTIVE COATINGS
MESA LIFT STATION UPGRADE 098000-19
a. No moisture present
4. Consult manufacturer regarding questions and or recommendations in reference to moisture problems or questions.
F. Surface Cleanliness: Prepared surfaces shall be inspected for surface cleanliness after cleaning and drying, prior to the coating application.
G. Measure and record ambient air temperature, relative humidity and dew point temperature once every two hours of each work shift to ensure that the products are being applied within the manufacturer's recommendations.
H. Measure and record substrate temperature once every two hours using an infrared or other surface thermometer to ensure that the products are being applied within the manufacturer's recommendations.
I. Film Thickness:
1. Wet -Film Thickness shall be taken in accordance with ASTM D4414 or other agreed -upon method.
2. The Dry -Film Thickness (DFT) shall be measured in accordance with SSPC-PA2 Measurement of Dry Coating Thickness. Verify DFT of each coat and total DFT of each coating system are as specified.
J. Holiday (Spark) Testing: Upon full cure of coating system numbers 104, 105, and 106 the coating system shall be checked by spark detection in accordance with NACE SP0188 and the Manufacturer's instructions to verify a pinhole -free surface. Areas which do not pass the spark detection test shall be corrected at no cost to the Owner.
1. Submit written reports of the test results and actions taken to correct non -conforming work.
K. The Applicator is responsible for keeping the Engineer informed of progress so that Engineer may provide additional quality control at his discretion.
L. Inspection by the Engineer or others does not absolve the applicator from his responsibilities for quality control inspection and testing as specified herein or as required by the Manufacturer's instructions.
3.6 MANUFACTURER'S FIELD SERVICES
A. Manufacturer's technical representative shall provide technical assistance and guidance for surface preparation and application of coating systems.
3.7 ACCEPTANCE CRITERIA
A. Surfaces shall be prepared, applied, and tested in accordance with the specification and referenced standards herein.
3.8 REPAIR
A. Damaged Materials: Repair or replace damaged materials and surfaces not scheduled to be coated.
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MESA LIFT STATION UPGRADE 098000-20
B. Damaged Coatings: Touch-up or repair damaged coatings. Touch-up of minor damage shall be acceptable where result is not visibly different from adjacent surfaces. Recoat entire surface where touch-up result is visibly different, either in sheen, texture, or color.
C. Coating Defects: Repair in accordance with manufacturer's instructions coatings that exhibit film characteristics or defects that would adversely affect performance or appearance of coating systems.
3.9 PROTECTION AND CLEANING
A. Protect the completed Work from traffic, physical abuse, immersion and chemical exposure until the complete system has thoroughly cured as per manufacturer's written instructions.
B. At the completion of the Work, Applicator shall remove materials and debris associated with the Work of this Section.
C. Clean surfaces not designated to receive coating. Restore designated areas in a manner acceptable to Engineer.
D. Protect the completed Work from damage until Final Acceptance. Coating damaged in any manner shall be repaired or replaced at the discretion of Engineer, at no additional cost to Owner.
3.10 COATING/FINISH SCHEDULE
A. As shown in Drawings.
END OF SECTION 098000
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SECTION 110513 — COMMON MOTOR REQUIREMENTS FOR EQUIPMENT PART 1 - GENERAL
1.1 SCOPE OF WORK
A. This Section includes AC induction electric motors to be provided with associated driven equipment. Motor voltage, speed and enclosures are specified in the equipment specifications and/or the Contract Drawings. Unless otherwise specified, motors shall be provided by the manufacturer of the driven equipment under the provisions of the individual equipment specification.
1.2 MOTOR RATING
A. Motor horsepower ratings as shown on the drawings and noted on the specifications are estimates only and it is the responsibility of the CONTRACTOR and/or VENDOR to furnish motors, electric circuits, power feeds and other equipment whose ratings meet the requirements for the submitted horsepower and amperage.
B. This section applies to electric motors rated 480 V and below.
1.3 CODE AND STANDARDS
A. Electrical Code Compliance: Comply with applicable local electrical code requirements of the authority having jurisdiction and NEC Articles 220, 250, and 430, as applicable to installation, and construction of motor controllers.
B. AFBMA Compliance: Comply with applicable requirements of AFBMA 9 & 11, "Load Rating and Fatigue Life for Ball and Roller Bearings."
C. UL Compliance: Comply with applicable requirements of UL 674, "Electric Motors and Generators, for Use in Division 1 Hazardous (Classified) Locations" and UL 1004, "Electric Motors".
D. IEEE Compliance: Comply with recommended practices contained in IEEE Standard 112, "Standard Test Procedures for Polyphase Induction Motors and Generators," and IEEE Standard 841, "Standard for Petroleum and Chemical Industry — Totally Enclosed Fan Cooled (TEFC) Squirrel Cage Induction Motors — Up to and Including 500 HP".
E. NEMA Compliance: Comply with applicable requirements of NEMA Standard ICS 2, "Industrial Control Devices, Controllers and Assemblies", NEMA Standard ICS 6, "Enclosures for Industrial Controls and Systems, "Pub No. 250, "Enclosures for Electrical Equipment (1000 Volts Maximum)" and NEMA MG 1, "Motors and Generators".
CITY OF BEAUMONT COMMON MOTOR REQUIREMENTS FOR EQUIPMENT MESA LIFT STATION UPGRADE 110513-1
1.4 MAINTENANCE DATA
A. Submit maintenance data and parts list for each motor and auxiliary component; including troubleshooting maintenance guide. Also, provide product data and shop drawings in a maintenance manual, in accordance with requirements of the Contract Documents.
1.5 SUBMITTALS
A. Product Data: Submit manufacturer's data and installation instructions for each motor in accordance with the individual equipment specification. As a minimum, the following information shall be provided:
1. Manufacturer name, type and model number
2. Motor outline, dimensions and weight
3. Manufacturer's general descriptive information relative to motor features
4. Type of bearing and method of lubrication
5. Rated size of motor and service factor
6. Temperature rise and insulation rating
7. Full -load rotative speed
8. Efficiency at full, 3/4 and 1/2 load
9. Full load current
10. Locked -rotor current
11. Space heater wattage and voltage, if applicable
12. If a winding overtemperature device is required, provide a response curve for the temperature device, wiring diagram and specifications
13. If a moisture detection system is required, provide a typical wiring diagram and a moisture detection relay to be installed by the CONTRACTOR or VENDOR in the associated motor controller.
B. Shop Drawings: Submit shop drawings of electric motors showing accurately scaled equipment locations and spatial relationships to associated drive equipment.
C. Wiring Diagrams: Submit power and control wiring diagrams for electric motors showing connections to electrical power panels, feeders, and equipment.
D. Operations and Maintenance Data: Submit operation and maintenance information.
PART 2 - PRODUCTS
2.1 GENERAL
A. Except as otherwise indicated, provide electric motors and ancillary components that comply with manufacturer's standard materials, design and construction in accordance with published product information, and as required for a complete installation.
2.2 SERVICE CONDITIONS
CITY OF BEAUMONT COMMON MOTOR REQUIREMENTS FOR EQUIPMENT MESA LIFT STATION UPGRADE 110513-2
A. Unless specified otherwise, motors shall be suitable for continuous operation at an elevation of 0 to 3000 feet above mean sea level.
B. Unless specified otherwise, motors located outdoors shall be suitable for continuous operation from -25 to 55°C; motors located indoors shall be suitable for continuous operation from 0 to 50°C.
C. All motors shall be able to operate under power supply variations in accordance with NEMA MG 1 — 14.30.
2.3 NAMEPLATES
A. Motor nameplates shall be engraved or stamped stainless steel. Information shall include those items as enumerated in NEMA Standard MG 1, as applicable. Nameplates shall be permanently fastened to the motor frame and shall be visibly positioned for inspection.
2.4 CONSTRUCTION
A. All motors provided under this specification shall have the following features of construction:
1. Frames shall be steel for motors smaller than 1/2 horsepower and cast iron for motors %2 horsepower and larger.
2. Cast metal shrouds and covers for non -sparking fan blades.
3. Non -hygroscopic motor leads.
4. NEMA Design -B as standard design. Other designs if required must be submitted and approved in writing by the ENGINEER.
5. Motor Service Factor of 1.15 for Sine -Wave and 1.0 for Inverter Duty.
6. Grounding terminal
7. Windings shall be copper
8. Rotor cages shall be die cast aluminum or fabricated copper
9. Shafts shall be made from carbon steel.
2.5 MOTORS LESS THAN 1/2 HORSEPOWER
A. General:
1. Unless specified otherwise, motors less than 1/2 horsepower shall be squirrel cage, single phase, capacitor start, induction run type.
2. Single phase motors shall have class B insulation as a minimum.
3. Motors for fans less than 1/8 horsepower may be split -phase or shaded pole type.
4. Winding shall be copper.
B. Rating:
1. Unless specified otherwise, motors less than %2 horsepower shall be rated for operation at 115 volts, single phase, 60 Hz, and shall be continuous -time rated in conformance with NEMA Standard MG 1 — 10.35.
CITY OF BEAUMONT COMMON MOTOR REQUIREMENTS FOR EQUIPMENT MESA LIFT STATION UPGRADE 110513-3
2. Dual voltage (115/230) rated motors are acceptable if all leads are brought out to the conduit box.
3. Motors shall be non -overloading at all points of the equipment operation.
2.6 MOTORS 1/2 HORSEPOWER AND LARGER
A. General:
1. Unless specified otherwise, motors %2 horsepower and larger shall be 3 phase, squirrel cage, full voltage start induction type.
2. Unless otherwise specified, motors shall have a NEMA MG 1-1.16 design letter B or C torque characteristic as required by the driven equipment's starting torque requirement.
3. Winding shall be copper.
4. Motors shall be equipped with a set of thermal overload switches with dry contacts available at the motor terminal box:
B. Rating:
1. Unless specified otherwise, motors 1/2 horsepower and larger shall be rated for operation at 460 volts, 3 phase, 60 Hz, and shall be continuous -time rated in conformance with NEMA Standard MG 1 — 10.35.
2. Dual voltage (230/460) rated motors are acceptable if all leads are brought out to the conduit box.
3. Motors for variable frequency systems shall not be required to deliver more than 80% of the motor's service factor rating by any load imposed by the driven machine at any specified operating condition or any condition imposed by the driven machine's performance curve at maximum operating speed.
C. Enclosures and Insulation:
1. Motors shall be classified as Type 1 (Process) or Type 2 (Explosion proof) based upon the location of the motor and the associated area classification.
2. Temperature rise for all motors shall not exceed that permitted by Note II, Paragraph
12.42 of NEMA MG 1.
3. Motor Insulation shall be non -hygroscopic.
4. Type 1 motors (Process):
a. Type 1 motors shall be premium energy -efficient motors, totally enclosed, fan cooled (TEFC)
b. All motors shall have Class H insulation with Class B temperature rise. c. All internal surfaces shall be coated with an epoxy paint. d. Motors shall be rated for corrosive atmosphere duty.
5. Type 2 Motors (Explosion Proof):
a. Explosion proof motors shall be UL listed in accordance with UL 674 for Class I, Group D hazardous atmospheres.
b. The motor shall have Class H insulation.
CITY OF BEAUMONT COMMON MOTOR REQUIREMENTS FOR EQUIPMENT MESA LIFT STATION UPGRADE 110513-4
c. A UL -approved Type 316 stainless steel breather/drain device shall be provided in the motor drain hole.
d. The motor shall be provided with a frame temperature thermostat which meets the UL frame temperature limit code T2A (280°C). The thermostat shall contain an automatically reset, normally closed contact rated 2 amperes at 230 VAC.
2.7 MOTORS FOR VARIABLE FREQUENCY DRIVES
A. Motors intended for use with variable frequency drives shall be compatible with the characteristics of the intended variable frequency inverter.
B. Motors shall be Type 1 or Type 2 as specified in 2.06C.
C. Motors shall withstand a pulse voltage of at least 1750 volts with a rate of rise up to 750V per microsecond.
D. Motors shall be certified by the manufacturer as suitable for inverter duty and shall have as a minimum a 10:1 turndown ratio (6-60Hz).
E. Motors shall be capable of running above the rated RPM up to 70 Hz (116.67% of rated RPM) so long as the load current does not exceed the full load amps of the motor.
F. As motors that are VFD driven typically have a service factor of 1.0, motors shall be oversized such that the motor does not exceed 80% of full load amps under normal operating conditions.
2.8 MOTOR EFFICIENCIES
A. Type 1 and Type 2 motors in accordance with NEMA MG 1 Table 12-11 and 12-12 and Type 2 in accordance with IEEE 841 Table 2 motor minimum nameplate efficiency for 900, 1200 and 1800 rpm motors, when operating on a sinusoidal power source shall conform to the following (in accordance with IEEE 112B testing procedures):
Motor
Horsepower
Guaranteed Minimum Efficiency (%)
900 RPM
1200 RPM
1800 RPM
1 70.0%
78.5%
81.5%
1.5 72.0%
81.5%
82.5%
2 80.0%
81.5%
82.5%
3 81.5%
86.5%
84.0%
5 82.5%
86.5%
84.0%
7.5 82.5%
88.5%
88.5%
10 86.5%
88.5%
88.5%
15 86.5%
89.5%
89.5%
20 87.5%
90.2%
91.7%
25 87.5%
91.0%
91.7%
30 89.5%
91.0%
91.7%
CITY OF BEAUMONT COMMON MOTOR REQUIREMENTS FOR EQUIPMENT MESA LIFT STATION UPGRADE 110513-5
40 89.5%
92.4%
92.4%
50 90.2%
92.4%
92.4%
60 90.2%
93.0%
93.0%
75 91.7%
93.0%
93.6%
100
91.7%
93.6%
94.1%
125
92.4%
93.6%
94.1%
150
92.4%
94.5%
94.5%
200
92.4%
94.5%
94.5%
250
93.6%
94.1%
94.1%
2.9 CONDUIT BOXES
A. Conduit boxes shall be sized based on the conduit number and conduit size indicated on the drawings. Provide over -sized boxes with the number of openings as required to accommodate the conduits required.
B. Conduit boxes shall be split construction with threaded hubs and shall conform to IEEE 841 for Type 1 and Type 2 motors. Motors shall be furnished with petroleum -resistant gaskets at the base of the conduit box and between the halves of the conduit box.
C. Conduit boxes shall be designed to rotate in order to permit installation in any of four positions 90 degrees apart.
2.10 BEARINGS
A. Bearings may be oil or grease lubricated ball or angle contact roller bearing rated for a minimum L-10 life of 100,000 hours in accordance with ABMA 9 or 100 at the ambient temperature specified. Motor designs employing cartridge type bearings will not be accepted.
Bearings shall be fitted with lubricant fill and drain or relief fittings. Belt loads shall not exceed forces calculated from NEMA MG 1 Table 14-1.
2.11 LIFTING EYES
A. Motors weighing more than 50 pounds shall be fitted with at least one lifting eye and motors weighing over 150 pounds shall be fitted with two lifting eyes.
2.12 SPACE HEATERS
A. Motors that are located outdoors shall be equipped with Space Heaters to prevent condensation inside the motor enclosure after motor shutdown and maintain the temperature of the windings at not less than 5°C above outside ambient temperature.
B. Heaters shall be flexible wraparound type rated 120 volts, single phase, 60 Hz unless otherwise noted. The space heater rating in watts and volts shall be noted on the motor nameplate or on a
CITY OF BEAUMONT COMMON MOTOR REQUIREMENTS FOR EQUIPMENT MESA LIFT STATION UPGRADE 110513-6
second nameplate. Space heater leads H1 and H2 shall be brought to a separate terminal block or pigtails in the motor conduit box or separate conduit box with a threaded conduit opening.
PART 3 - EXECUTION
A. Install electric in accordance with equipment manufacturer's written instructions, and with recognized industry practices. Comply with applicable requirements of NEC, UL, and NEMA standards, to ensure that products fulfill requirements.
B. Tighten connectors and terminals, including screws and bolts, in accordance with equipment manufacturer's published torque values for equipment connectors. Where manufacturer's torque requirements are not indicated, tighten connectors and terminals to comply with tightening torques specified in UL Standards 486A and B, and the National Electrical Code.
C. Ensure that the motor is properly grounded from the incoming motor leads and that the frame is bonded to the grounding electrode system.
D. Verify breather/drain fittings have been installed as specified.
E. Prior to energizing, check circuitry for electrical continuity, and for short-circuits. Winding insulation resistance for motors shall not be less than 10-megohms measured with a 1000 -VAC megohmeter at 1 -minute at or corrected to 40°C.
F. Check rotation of each motor for proper direction.
G. Upon completion of installation of motor controller equipment and electrical circuitry, energize controller circuitry and demonstrate functioning of equipment in accordance with requirements.
END OF SECTION 110513
CITY OF BEAUMONT COMMON MOTOR REQUIREMENTS FOR EQUIPMENT MESA LIFT STATION UPGRADE 110513-7
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CITY OF BEAUMONT COMMON MOTOR REQUIREMENTS FOR EQUIPMENT MESA LIFT STATION UPGRADE 110513-8
SECTION 220517 - SLEEVES AND SLEEVE SEALS FOR PIPING
PART 1 - GENERAL
1.1 SUMMARY
A. Section Includes:
1. Sleeves.
2. Sleeve -seal systems.
1.2 ACTION SUBMITTALS
A. Product Data: For each type of product indicated.
PART 2 - PRODUCTS
2.1 SLEEVES
A. Cast -Iron Wall Pipes: Cast or fabricated of cast or ductile iron and equivalent to ductile -iron pressure pipe, with plain ends and integral waterstop unless otherwise indicated.
B. Galvanized -Steel Wall Pipes: ASTM A 53/A 53M, Schedule 40, Grade A, with plain ends and welded steel collar; zinc coated. Hot dip galvanize after fabrication.
C. Galvanized -Steel -Pipe Sleeves: ASTM A 53/A 53M, Type E, Grade B, Schedule 40, zinc coated, with plain ends. Hot dip galvanize after fabrication.
D. PVC -Pipe Sleeves: ASTM D 1785, Schedule 40.
2.2 SLEEVE -SEAL SYSTEMS
A. Description: Modular sealing -element unit, designed for field assembly, for filling annular space between piping and sleeve.
1. Sealing Elements: EPDM-rubber interlocking links shaped to fit surface of pipe. Include type and number required for pipe material and size of pipe.
2. Connecting Bolts and Nuts: 316 Stainless Steel of length required to secure pressure plates to sealing elements.
B. Acceptable Manufacturers:
1. Link Seal
2. Or equal.
CITY OF BEAUMONT SLEEVES AND SLEEVE SEALS FOR PIPING
MESA LIFT STATION UPGRADE 220517-1
PART 3 - EXECUTION
3.1 SLEEVE INSTALLATION
A. Install sleeves for piping passing through penetrations in floors, partitions, roofs, and walls.
B. For sleeves that will have sleeve -seal system installed, select sleeves of size large enough to provide 1 -inch annular clear space between piping and concrete slabs and walls.
1. Sleeves are not required for core -drilled holes.
C. Install sleeves in concrete floors, concrete roof slabs, and concrete walls as new slabs and walls are constructed.
1. Cut sleeves 1 inch longer than penetration through floors.
2. Use foam and polyurethane caulk to seal space between pipe and sleeve.
D. Install sleeves for pipes passing through interior partitions.
1. Size sleeve for pipe and link seal.
2. Cut sleeves to length for mounting flush with both surfaces.
3. Install sleeves that are large enough to provide 1/4 -inch annular clear space between sleeve and pipe or pipe insulation.
4. Seal annular space between sleeve and piping or piping insulation; use joint sealants appropriate for size, depth, and location of joint. Comply with requirements for sealants specified in Section 079200 "Joint Sealants."
3.2 SLEEVE -SEAL -SYSTEM INSTALLATION
A. Install sleeve -seal systems in sleeves in exterior concrete walls and slabs -on -grade at service piping entries into building.
B. Select type, size, and number of sealing elements required for piping material and size and for sleeve ID or hole size. Position piping in center of sleeve. Center piping in penetration, assemble sleeve -seal system components, and install in annular space between piping and sleeve. Tighten bolts against pressure plates that cause sealing elements to expand and make a watertight seal.
END OF SECTION 220517
CITY OF BEAUMONT SLEEVES AND SLEEVE SEALS FOR PIPING
MESA LIFT STATION UPGRADE 220517-2
SECTION 220553 — IDENTIFICATION FOR PIPING AND EQUIPMENT PART 1 - GENERAL
1.1 RELATED DOCUMENTS
A. Drawings and general provisions of Contract, including General Conditions and Division -1 Specification sections, apply to work of this section.
B. This section is Division -22 General Mechanical Materials and Methods section and is part of each Division -22 section making reference to identification devices specified herein.
1.2 DESCRIPTION OF WORK
A. Furnish mark and install identification devices for all exposed piping installed in this work.
B. Furnish and securely attach an engraved plastic nameplate to all new pieces of equipment (Owner or Contractor furnished).
C. Tag all valves installed in this work.
1.3 QUALITY ASSURANCE
A. Codes and Standards:
B. ANSI Standards:
C. Comply with ANSI A13.1 for lettering size, length of color field, colors, and viewing angles of identification devices.
PART 2 - PRODUCTS
2.1 IDENTIFICATION OF PIPING
A. Identification of all exposed pipe shall be accomplished by color -coding with bands and by lettering. Color bands shall be pressure -sensitive adhesive -backed vinyl cloth or plastic tape.
B. Each pipe identification shall consist of 2 color -coded bands, a printed label identifying the name of the pipe, and a flow arrow to indicate direction of flow in the pipe. All labels shall be preprinted on pressure -sensitive adhesive -backed vinyl cloth or plastic tape. Arrows shall be die -cut of the same type of material as the labels.
C. Preprinted identification devices shall be as manufactured by W.H. Brady Co., Seton Nameplate Corp., or equal.
2.2 VALVE TAGS
CITY OF BEAUMONT IDENTIFICATION FOR PIPING AND EQUIPMENT MESA LIFT STATION UPGRADE 220553-1
A. Valve Tags: Provide 1-1/2" x 3" size stainless steel or plastic valve tags with stamp -engraved 1/8" high letters.
B. Valve Tag Fasteners: Provide manufacturer's standard solid stainless steel chain (wire link or beaded type), or solid S -hooks of the sizes required for proper attachment of tags to valves, and manufactured specifically for that purpose.
2.3 ENGRAVED PLASTIC -LAMINATE SIGNS
A. General: Provide engraving stock melamine plastic laminate, complying with FS L -P-387, in the sizes and thicknesses indicated, engraved with engraver's standard letter style of the sizes and wording indicated, black with white core (letter color) except as otherwise indicated, punched for mechanical fastening except where adhesive mounting is necessary because of substrate.
PART 3 - EXECUTION
3.1 GENERAL INSTALLATION REQUIREMENTS
A. Coordination: Where identification is to be applied to surfaces which require insulation, painting or other covering or finish, including valve tags in finished mechanical spaces, install identification after completion of covering and painting.
3.2 PIPING SYSTEM IDENTIFICATION
A. General: Install pipe markers on each piping system, and include arrows to show normal direction of flow:
Example of System Identification:
FLUID FUNCTION ID
ABBREVIATION IDENTIFICATION COLOR
SD
NPW
SANITARY DRAINS & VENTS
NON -POTABLE WATER
BLUE
PURPLE
Coordinate with the Owner for all piping systems identification ID Coloring.
B. Locate pipe markers and color bands as follows wherever piping is exposed to view in occupied spaces, machine rooms, accessible maintenance spaces (shafts, crawl spaces, plenums) and exterior non -concealed locations.
1. Near each valve and control device.
2. Near each branch, excluding short take -offs for fixtures and terminal units; mark each pipe at branch, where there could be question of flow pattern.
3. Near locations where pipes pass through walls or floors/ ceilings or enter non -accessible enclosures.
4. Near major equipment items and other points of origination and termination.
5. Spaced intermediately at maximum spacing of 50' along each piping run, except reduce spacing to 25' in congested areas of piping and equipment.
3.3 VALVE IDENTIFICATION
CITY OF BEAUMONT IDENTIFICATION FOR PIPING AND EQUIPMENT MESA LIFT STATION UPGRADE 220553-2
A. General: Provide valve tag on every valve, cock and control device in each piping system; exclude check valves, valves within factory -fabricated equipment units, plumbing fixture faucets, convenience and lawn -watering hose bibs, and shut-off valves at plumbing fixtures.
List each tagged valve in valve schedule for each piping system. Valve tags shall include the following minimum information:
1. Plan Identification
2. Normal Position
3. Duty
4. Area served
5. Valve type.
B. Example of typical valve tag (where it is apparent what valve is serving):
B-14 Automatic 3 -way mixing chlorine feed pump rate control Position: 1/2 open
Function: Control flow rate
3.4 MECHANICAL EQUIPMENT IDENTIFICATION
A. General: Install engraved plastic laminate sign or plastic equipment marker on or near each major item of mechanical equipment and each operational device, as specified herein if not otherwise specified for each item or device. Provide signs for the following general categories of equipment and operational devices:
1. Main control and operating valves, including safety devices and hazardous units such as non -potable water outlets. For non -potable water outlets use red engraved laminate with white lettering.
2. Pumps, compressors.
3. Press.
4. Air Handlers and Exhaust Fans, Furnaces, Condensing Units.
5. Polymer Feed Units.
6. Tanks and pressure vessels.
7. Open Control Equipment.
B. Lettering Size:
Minimum 1/4" high lettering for name of unit where viewing distance is less than 2'-0", 1/2" high for distances up to 6'-0", and proportionately larger lettering for greater distances. Provide secondary lettering of 2/3 to 3/4 of size of the principal lettering.
C. Text of Signs:
In addition to name of identified unit, provide lettering to distinguish between multiple units, inform operator of operational requirements, indicate safety and emergency precautions, and warn of hazards and improper operations.
D. A sample identification tag for equipment could be as follows:
Heating water pump Symbol P-1
CITY OF BEAUMONT IDENTIFICATION FOR PIPING AND EQUIPMENT MESA LIFT STATION UPGRADE 220553-3
Rating: 900 gpm, 120 ft. hd.
Maintenance: Lubricate with type C lubricant.
3.5 PANEL IDENTIFICATION
A. All panel devices on panel faces shall have engraved black face formica with white engraved lettering labels.
B. All internal panel components shall have engraved black face formica with white engraved lettering labels. Fasten label beneath each device.
C. All panel wiring and tubing shall be numerically or alphabetically coded.
3.6 ADJUSTING AND CLEANING
A. Adjusting: Relocate any mechanical identification device which has become visually blocked by work of this division.
B. Cleaning: Clean face of identification devices.
END OF SECTION 220553
CITY OF BEAUMONT IDENTIFICATION FOR PIPING AND EQUIPMENT MESA LIFT STATION UPGRADE 220553-4
SECTION 260000 — GENERAL ELECTRICAL REQUIREMENTS
PART 1 - GENERAL
1.1 SUMMARY
A. This Section includes the following:
1. General requirements which apply to all electrical aspects of the work.
B. Related Sections
1. The Contract Documents are a single integrated document. As such, all Divisions and Sections are applicable. The Contractor and its Subcontractors are responsible to review all parts of the Contract Documents in order to provide a complete and coordinated project.
1.2 REFERENCES
A. The installation and commissioning of the Electrical System shall conform to all applicable codes, regulations, standards and specifications, including, but not limited to those listed below. These publications are referenced to by designation but not by edition. The latest edition accepted by the Authority Having Jurisdiction in effect at the time of bid shall govern.
1. State and Local Codes and Authority Having Jurisdiction (AHJ)
2. National Electric Code (NEC).
3. National Fire Protection Association (NFPA)
4. Institute of Electrical and Electronic Engineers (IEEE)
5. American National Standards Institute (ANSI)
6. American Society for Testing and Materials (ASTM)
7. Insulated Cable Engineers Association (ICEA)
8. National Electrical Manufacturers Association (NEMA)
9. Federal Occupational Safety and Health Act (OSHA)
10. Underwriters Laboratories, Inc. (UL)
11. International Society of Automation (ISA)
1.3 DEFINITIONS
A. Refer to the Contract Drawings sheet E001 for a list of abbreviations associated with the Electrical System. In addition, the following definitions are used in this section:
1. AHJ — Authority Having Jurisdiction
2. I&C — Instrumentation and Controls
3. IS — Instrumentation Supplier
4. NEC — National Electric Code
5. VFD — Variable Frequency Drive
6. UL - Underwriters Laboratories, Inc.
CITY OF BEAUMONT GENERAL ELECTRICAL REQUIREMENTS
MESA LIFT STATION UPGRADE 260000-1
1.4 ELECTRICAL SYSTEMS REQUIREMENTS
A. The Work is to provide all labor and materials necessary for erecting a complete and operational Electrical System, tested and ready for continuous use as described by the Contract Documents.
The Electrical System shall be constructed in accordance with the Contract Documents, and Federal, State, and Local codes and regulations. In addition, the Work shall adhere to the following general provisions:
1. The Electrical Contractor shall obtain all necessary permits required by the AHJ. In addition, the Electrical Contractor shall ensure that all inspections required by the AHJ are coordinated, conducted and documented.
2. All work shall be completed in a neat, workmanlike manner in accordance with the latest NEC standards of installation under competent supervision.
3. The Electrical Contractor shall visit the job site prior to bidding to become familiar with existing conditions and other factors, which may affect the execution of the work. Include all related costs in the initial bid proposal.
4. Coordinate work with the utilities providing services on this project. This may include but is not limited to the electric utility, telephone utility, cable TV/Internet utility. All electrical work associated with utilities shall be provided and installed per the utility requirements.
5. All materials shall be new and of the best quality, manufactured in accordance with the requirements listed in part 1.2 of this section. The Contractor shall furnish and install the parts and pieces necessary to the installation of equipment, in accordance with the best practice of the trade, and in conformance with the requirements of these Contract Documents.
6. Protect all electrical material and equipment that is being stored or has been installed against damage by other trades, weather conditions, or any other preventable causes.
Equipment damaged during shipping, storage or construction, prior to acceptance by the engineer or the owner, will be rejected as defective.
7. Leave the site clean. Remove all debris, empty cartons, tools, conduit, wire scraps and all miscellaneous spare equipment and materials used in the work during construction. All components shall be free of dust, grit and foreign materials, left as new before final acceptance of work. Damaged paint and finishes shall be touched up or repainted with matching color paint and finish.
8. Electrical equipment shall be capable of operating successfully at full -rated load, without failure, at an ambient air temperature of 40 degrees C, and specifically rated for the altitude indicated on the Plans. Electrical equipment not rated for operation at that temperature shall be provided with air conditioning to meet the manufacturers' operating temperature.
9. If any contradictions, contrasts, non -homogeneity, or inconsistency appears, the strictest criteria noted and the collective requirements in any and all of the Contract Documents shall apply.
10. The Electrical Contractor shall perform necessary saw cutting, core drilling, excavating, removal, shoring, backfilling, and other work required for the proper installation of
CITY OF BEAUMONT GENERAL ELECTRICAL REQUIREMENTS
MESA LIFT STATION UPGRADE 260000-2
conduits, whether inside, or outside of the buildings and structures. The Electrical Contractor shall repair and patch where demolition has taken place in a manner to match existing original structure.
B. Oversee and coordinate with all equipment and services being provided by the Contractor but outside of the Electrical Contractor's scope.
1. Inform all vendors and suppliers providing equipment related to the Electrical System the requirements of Division 26.
2. The Owner is not responsible for any additional costs incurred by requiring vendors and/or subcontractors to meet the requirements of Division 26.
3. If a vendor or supplier is unable to meet the requirements of Division 26, the Contractor may submit in writing to the Engineer the reasons for non-compliance. The Engineer will then evaluate the reasons and determine whether a solution may be determined or if a different vendor or supplier is required.
C. Prepare Electrical System Submittals as required by Division 26 and Section 013300. Coordinate with the IS and the requirements of Division 40 to ensure that all equipment being supplied by the Electrical Contractor and/or IS has been submitted.
D. Oversee the installation of the Electrical System.
E. Actively participate in loop testing as outlined in Division 40.
F. Actively participate in commissioning as outlined in Division 40.
G. Maintain record drawings.
1. Maintain on the construction site a set of the Electrical Drawings that shall be continuously marked up during construction.
a. The drawings should be updated at least weekly and will be checked monthly by the Owner's representative.
b. Upon completion of startup, submit the marked -up drawings to the Engineer for review and for drafting.
H. Prepare O&M manuals.
1. Provide O&M manuals in accordance with Section 017823.
I. Provide training on electrical equipment that has been installed.
1.5 ACTION SUBMITTALS
A. General
1. Submittals for Division 26 shall meet the requirements of Section 013300 Contractor Submittals. In addition, the following requirements shall be met:
a. Submittals shall include bills of materials with quantities, makes, models, exact part numbers and descriptions.
CITY OF BEAUMONT GENERAL ELECTRICAL REQUIREMENTS
MESA LIFT STATION UPGRADE 260000-3
b. Edit all submittals such that only pertinent information is submitted. Neatly cross out information that does not apply, options that are not being supplied, etc. c. Show product dimensions, construction and installation details, wiring diagrams, and specifications.
d. If there are exceptions to the Contract Drawings and Specifications, provide a list of exceptions with detailed explanations for the exceptions. The Engineer will review the list of exceptions and determine whether a solution may be determined or if the exception(s) will not be allowed.
2. Furnish submittals required by each Section within Division 26.
3. When submitting on equipment, use the equipment and instrumentation tags depicted in the Contract Drawings.
B. Recommended Spare Parts Submittal
1. Submit a list of spare parts for all of the equipment associated with the Electrical System.
The list of spare parts shall include list pricing for each item.
2. Provide the name, address and phone number for each manufacturer and manufacturer's local sales representative.
3. Indicate whether or not the spare parts are being provided under this contract or not.
1.6 CLOSEOUT SUBMITTALS
A. Operation and maintenance data.
1.7 QUALITY ASSURANCE
A. All equipment supplied for this project shall meet the requirements of the NEC and shall be listed by and bearing the label of the UL.
B. The Electrical Contractor shall be a company that has been actively involved in the installation and commissioning of Electrical Systems for a minimum period of five years.
C. The Electrical Contractor shall have adequate facilities, manpower and technical expertise to perform the Work associated with the Electrical System and as outlined by the Contract Documents.
D. The Electrical Contractor shall have similar project experience of at least four successfully completed projects for a similar wastewater system. The Electrical Contractor company must have performed similar work for these projects as required herein.
PART 2 - PRODUCTS
2.1 MATERIALS AND METHODS
A. Materials, equipment, and parts comprising any unit, or part thereof, specified or indicated on the Plans, shall be new and unused, of current manufacture, and of highest grade consistent with the state of the art. Damaged or dirty materials, equipment, and parts are not considered to be new and unused and will not be accepted.
CITY OF BEAUMONT GENERAL ELECTRICAL REQUIREMENTS
MESA LIFT STATION UPGRADE 260000-4
B. Field verification of scale dimensions on Plans is directed, since actual locations, distances, and levels will be governed by actual field conditions. The Contractor shall also review architectural, structural, yard, mechanical, and other Plans, and the accepted electrical and mechanical shop drawings, and shall adjust their work to conform to the conditions indicated therein.
C. The fabricator of major components, such as distribution panelboards, switchgear, and motor control centers, shall also be the manufacturer of the major devices therein. Where possible, the major components shall be manufactured and supplied by the same fabricator.
2.2 MANUFACTURERS
A. All equipment provided for the Electrical System shall be the most recent field -proven models marketed by their manufacturers at the time of submittal of the Shop Drawings unless otherwise required to match existing equipment.
B. Refer to various Division sections for individual equipment manufacturers. Indicated manufacturers are subject to strict compliance with the specifications and complete project documents. The reference to a particular manufacturer does not relieve the Electrical Contractor from conforming to the specified requirements.
C. When providing like electrical components they shall be furnished by a single manufacturer and shall be consistent throughout the project. For example, a 20A 2 -way light switch in one building should match a 20A 2 -way light switch in another building in both make, model and features.
2.3 EQUIPMENT ASSEMBLIES
A. Equipment assemblies, such as Service Entrance Sections, Switchgear, Switchboards, Control and Distribution Panels, and other custom fabricated electrical enclosures shall bear a UL label as a complete assembly. The UL label on the individual components making up the assembly will not be considered sufficient to meet the present requirement. Whenever a generic UL label does not apply for the assembly, a serialized UL label shall be affixed to the assembly, and the serial number shall be submitted with the assembly record shop drawings.
B. Custom fabricated electrical control panels, and enclosures shall bear a serialized UL label affixed by a local inspector, and the serial number shall be submitted with the assembly record shop drawings.
2.4 OPERATING CONDITIONS
A. The Electrical System shall be designed and constructed for satisfactory operation and long, low maintenance service under the following conditions:
1. Environment: Wastewater Lift Station
2. Temperature Extremes: -4°F to 120°F (Outdoors); 40°F to 104°F (Indoors).
3. Relative Humidity: 20% to 90%, non -condensing.
B. Indoor and outdoor electrical equipment shall be suitable for operation in the ambient conditions associated with the locations designated in the Contract Documents. Heating, cooling, and dehumidifying devices shall be provided in order to maintain electrical devices 20 percent within
CITY OF BEAUMONT GENERAL ELECTRICAL REQUIREMENTS
MESA LIFT STATION UPGRADE 260000-5
the minimums and maximums of their rated environmental operating ranges. The Contractor shall provide power wiring for these devices. Enclosures suitable for the environment shall be furnished. Electrical equipment in hazardous areas shall be suitable for and rated for use in the particular hazardous or classified location in which it is to be installed.
2.5 SEISMIC RESTRAINT
A. The construction area is classified by the International Building Code (IBC) as Seismic Class C.
The Code requires that not only the structures, but also major electrical components be designed and installed in a manner which will preclude damage during a seismic event. All electrical equipment shall be securely anchored and seismic braced in accordance with regulations contained in the most recent adopted edition of the IBC, and the Sheet Metal and Air Conditioning Contractor's National Association (SMACNA) "Guidelines for Seismic Restraints of Electrical Systems".
B. Units mounted and secured directly to structure shall be provided with connectors of sufficient strength to meet the restraining criteria.
C. All electrical equipment which is securely anchored (hard mounted) to the building or structure shall have supports designed to withstand lateral and vertical "G" loadings equal to or greater than IBC requirements and SMACNA guidelines.
D. Shop drawings are required for all equipment anchors, supports and seismic restraints. Submittals shall include weights, dimensions, load/deflection data, center of gravity, standard connections, manufacturer's recommendations, and behavior problems (vibration, thermal, expansion, etc.) associated with equipment.
PART 3 - EXECUTION
3.1 DELIVERY, STORAGE AND HANDLING
A. After completion of shop assembly, factory test, and approval, equipment, cabinets, panels, and consoles shall be packed in protective crates and enclosed in heavy duty polyethylene envelopes or secured sheeting to provide complete protection from damage, dust, and moisture.
Dehumidifiers shall be placed inside the polyethylene coverings. The equipment shall then be skid -mounted for final transport. Lifting rings shall be provided for moving without removing protective covering. Boxed weight shall be shown on shipping tags together with instructions for unloading, transporting, storing, and handling at the Site.
B. Special instructions for proper field handling, storage, and installation required by the manufacturer shall be securely attached to each piece of equipment prior to packaging and shipment.
C. Each component shall be tagged to identify its location, instrument tag number, and function in the system. A permanent stainless steel or other non -corrosive material tag firmly attached and permanently and indelibly marked with the instrument tag number, as given in the tabulation, shall be provided on each piece of equipment in the PCIS. Identification shall be prominently displayed on the outside of the package.
CITY OF BEAUMONT GENERAL ELECTRICAL REQUIREMENTS
MESA LIFT STATION UPGRADE 260000-6
D. Equipment shall not be stored outdoors. Equipment shall be stored in dry permanent shelters, including in -line equipment, and shall be adequately protected against mechanical injury. If any apparatus has been damaged, such damage shall be repaired by the Contractor. If any apparatus has been subject to possible injury by water, it shall be thoroughly dried out and put through tests as directed by the Engineer. If such tests reveal defects, the equipment shall be replaced.
3.2 MANUFACTURER'S SERVICES
A. Manufacturer's services shall be furnished for the following equipment:
1. Vendor supplied equipment that contain programmable controllers, operator interfaces and/or instrumentation that requires site calibration.
2. Equipment that is equipped with VFD's
3. Grinder and Grinder Controls System
3.3 INSTALLATION
A. The Electrical System indicated throughout the design is diagrammatic and therefore locations of equipment are approximate. The exact locations and routing of wiring and cables shall be governed by structural conditions and physical interferences and by the location of electrical terminations on equipment. Equipment shall be located and installed so that it will be readily accessible for operation and maintenance. Installation of systems and equipment is subject to clarification as indicated in reviewed shop drawings and field coordination. Where job conditions require reasonable changes in approximated locations and arrangements, or when the Owner exercises the right to require changes in location of equipment which do not impact material quantities or cause material rework, the Contractor shall make such changes without additional cost to the Owner.
B. Discrepancies indicated on different Plans, between Plans and actual field conditions, or between Plans and Contract Documents shall be promptly brought to the attention of the Engineer for clarification, prior to purchasing and installing equipment.
C. The alignment of equipment and conduit shall be adjusted to accommodate architectural changes, or to avoid work of other trades, without extra expense to the Owner.
D. Items not specifically mentioned in these Contract Documents, or noted on the Plans, or indicated on reviewed shop drawings, but which are obviously necessary to make a complete working installation, shall be deemed to be included herein.
E. The Electrical Contractor shall layout and install electrical work prior to placing floors and walls.
Furnish and install sleeves and openings through floors and walls, required for installation of conduits. Sleeves shall be rigidly supported and suitably packed, or sealed, to prevent ingress of wet concrete. Spacers shall be installed in order to prevent conduit movement. Dimensions indicated for electrical equipment and their installation are restrictive dimensions.
F. The Electrical Contractor shall furnish and install inserts and hangers required to support conduits and other electrical equipment. If the inserts, hangers, sleeves, or other mounting hardware are improperly placed, or installed, the Contractor shall do necessary work, at their own expense, to rectify the errors.
CITY OF BEAUMONT GENERAL ELECTRICAL REQUIREMENTS
MESA LIFT STATION UPGRADE 260000-7
G. The Electrical System is integrally connected to I&C, mechanical and structural systems.
Coordinate with these other disciplines the installation of these related components.
H. Electrical equipment shall be anchored by methods that comply with seismic requirements applicable to the Site.
I. The Contract Documents show necessary conduit and instruments required to make a complete instrumentation system. The Contractor shall be responsible for providing any additional or different type connections as required by the instruments and specific installation requirements.
Such additions and such changes, including the proposed method of installation, shall be submitted to the Engineer for approval prior to commencing that Work. Such changes shall not be a basis of claims for extra Work or delay.
J. Instrumentation, control panels, wiring and all other I&C equipment shall be properly tagged and/or labeled per the requirements of Section 260553.
K. Installation of the I&C System shall be according to the finalized Loop Drawings
3.4 FACTORY ACCEPTANCE TESTING (FAT)
A. The IS shall arrange for the manufacturers of the equipment and fabricators of panels and cabinets supplied under this Section to allow the Engineer and Owner to inspect and witness the testing of the equipment at the site of fabrication. Equipment shall include the cabinets, special control systems, and other pertinent systems and devices. A minimum of 10 days notification shall be furnished to the Engineer prior to testing. No shipments shall be made without the Engineer's approval.
B. For each FAT, the IS shall develop and submit a FAT Plan and Procedure Document within 10 days of the FAT. The FAT Plan and Procedure shall as a minimum shall have the following:
1. Descriptions of test methods to be performed during the FAT.
2. FAT Schedule and Procedure
3. FAT Checklists that allow for sign -off and comments for each test method and procedure.
C. Control Panel Completion Test Methods: The following test methods should be performed during the FAT for each control panel:
1. Completed Shop Drawings: Demonstrate that the control panel has been built according to the shop drawings and that the shop drawings are accurate.
2. Panel Layout: Demonstrate that the control panel has been laid out as designed and as required by Division 40.
3. Power Distribution: Demonstrate all power distribution circuits, including but not limited to AC power circuits, UPS operation, signals and circuits and DC circuits.
4. Control Circuits: Demonstrate the correct installation of each control circuit. Using a signal generator or multi -meter, show the correct operation of each input, output, relay, barrier, buttons, switches, or any other control device. Demonstrate the proper functionality of any hard -wired interlocks that may be associated with each control circuit.
5. Panel Networking/Communications: If any form of communications is associated with the control panel, verify the proper operation of each communication port and link.
D. Control Loop Test Methods: In order to demonstrate that the control panel will provide its function as intended, provide the following control loop test methods. If programming for the
CITY OF BEAUMONT GENERAL ELECTRICAL REQUIREMENTS
MESA LIFT STATION UPGRADE 260000-8
control panel is provided by others, coordinate with the programmer to have all programming completed and tested prior to the FAT. If needed, coordinate to have the programmer present for the FAT.
1. Alarm Functions: Verify and/or simulate each alarm condition associated with each control loop.
2. Local Manual and Auto Functions: Verify and/or simulate each Local Manual and/or Auto function associated with each control loop.
3. SCADA Manual and Auto Functions: Verify and/or simulate each SCADA Manual and/or Auto function associated with each control loop.
4. Control Loop Interlocks: Demonstrate the functionality of any software interlocks that may be associated with each control loop.
E. If the FAT does not pass and needs to be repeated, the IS shall be responsible for additional per diem costs incurred by the Engineer and Owner.
F. All changes and/or corrections made during the FAT shall be noted on the checklists.
G. Following completion and approval of all FAT, provide the finalized checklists to the Engineer and as part of the equipment shop drawings.
3.5 FIELD QUALITY CONTROL
A. Allow for inspections by the Engineer and/or Owner of the I&C System at any time during the construction. Inspections shall be conducted to verify that the installation is per the requirements of the Contract Documents.
3.6 CALIBRATION
A. Devices provided under Division 40 shall be calibrated according to the manufacturer's recommended procedures to verify operational readiness and ability to meet the indicated functional and tolerance requirements.
B. Each instrument shall be calibrated at 0, 25, 50, 75, and 100 percent of span using test instruments to simulate inputs. The test instruments shall have accuracies traceable to National Institute of Standards and Testing.
C. Instruments that have been bench -calibrated shall be examined in the field to determine whether any of the calibrations are in need of adjustment. Such adjustments, if required, shall be made only after consultation with the Engineer.
D. Instruments which were not bench -calibrated shall be calibrated in the field to ensure proper operation in accordance with the instrument loop diagrams or specification data sheets.
E. Each analyzer system shall be calibrated and tested as a workable system after installation.
Testing procedures shall be directed by the manufacturers' technical representatives. Samples and sample gases shall be furnished by the manufacturers.
CITY OF BEAUMONT GENERAL ELECTRICAL REQUIREMENTS
MESA LIFT STATION UPGRADE 260000-9
F. For each instrument calibration, provide a calibration sheet and update the corresponding TR20 Instrument Form with the new calibration data. The Calibration sheet shall include the following as a minimum:
1. Date of calibration
2. Project Name.
3. Tag Number.
4. Manufacturer, model and serial number.
5. Calibration data including range, input, output and measurement at each calibration point.
6. Space for comments.
7. Space for sign -off by party performing calibration.
G. A calibration and testing tag shall be attached to each piece of equipment or system at a location determined by the Engineer. The IS shall sign the tag when calibration is complete. The Engineer will sign the tag when the calibration and testing has been accepted.
3.7 LOOP TESTING
A. Each control loop shall have been installed according to the finalized loop drawing. Prior to the commencement of loop testing, the following pre -requisites should have been met:
1. All associated equipment, conduit and wire has been permanently installed, terminated and inspected.
2. All wiring has been properly pulled, terminated and labeled.
3. Each wire has been tested with a point-to-point test.
4. All control panels and electrical equipment have been checked out and tested as required by Division 26.
5. All instrumentation has been appropriately installed and calibrated.
6. Loop Test Forms for each loop to be tested have been created and will be available during the loop testing.
B. Each loop test shall have a Loop Test Form prepared and ready prior to each loop test. The loop test form shall have the following:
1. Loop Number and Description
2. Check -Off List with room for sign -off and dated by the IS, Programmer, and Owner's Witness as well as room for comments. The list of items to be checked off for each loop should include but is not limited to the following:
a. Each power distribution circuit.
b. Each control circuit.
c. Each alarm circuit.
d. Each PLC input/output point.
e. Each Local Manual, Local Auto, SCADA Manual & SCADA Auto function. f. Each hard -wired and software interlock.
C. Upon completion of the above pre -requisites for loop testing, the IS shall oversee and coordinate each loop test. The IS is responsible to be present for all loop testing, whether the equipment was supplied by the IS or not. The IS is responsible to have all responsible parties associated with each loop present. This includes but is not limited to manufacturer representatives, vendor technicians, electrical installers, mechanical installers, and programmer. The IS shall coordinate with the Owner and Engineer to allow for witnessing of loop testing as deemed necessary by the Owner and Engineer.
CITY OF BEAUMONT GENERAL ELECTRICAL REQUIREMENTS
MESA LIFT STATION UPGRADE 260000-10
D. Issues that arise during loop testing should be addressed and fixed immediately. If it is not feasible to immediately fix the issues, the loop testing should be re -scheduled as soon as possible to avoid delays. Any costs associated with re -testing and requiring all parties to return to the site shall in no way be incurred to the Owner.
E. Following a successful loop test, the appropriate parties should sign and date the Loop Test Forms. All Forms shall be certified and submitted to the Engineer as part of the O&M Manuals.
F. Following loop testing, in no way should any parts of the loop be modified. In no way shall any wiring be re-routed or re -terminated. If any such work occurs, all affected loops shall be re -tested at no expense to the Owner.
3.8 COMMISSIONING
A. The IS shall oversee, coordinate and be present during all commissioning activities. The IS shall be responsible for obtaining the assistance of the Contractor and Subcontractors as may be required for commissioning activities.
B. Commissioning shall commence after acceptance of wire test, calibration tests and loop tests, and inspections have demonstrated that the instrumentation and control system complies with Contract requirements. Pre -commissioning shall demonstrate proper operation of every system with process equipment operating over full operating ranges under conditions as closely resembling actual operating conditions as possible.
C. Commissioning and test activities shall follow detailed test procedures and check lists accepted by the Engineer. Test data shall be acquired using equipment as required and shall be recorded on test forms accepted by the Engineer, which include calculated tolerance limits for each step. Completion of system commissioning and test activities shall be documented by a certified report, including test forms with test data entered, delivered to the Engineer with a clear and unequivocal statement that system commissioning and test requirements have been satisfied.
D. Where feasible, system commissioning activities shall include the use of water to establish service conditions that simulate, to the greatest extent possible, normal final control element operating conditions in terms of applied process loads, operating ranges, and environmental conditions.
Final control elements, control panels, and ancillary equipment shall be tested under startup and steady state operating conditions to verify that proper and stable control is achieved using motor control center and local field mounted control circuits. Hardwired and software control circuit interlocks and alarms shall be operational. The control of final control elements and ancillary equipment shall be tested using both manual and automatic (where provided) control circuits. The stable steady state operation of final control elements running under the control of field mounted automatic analog controllers or software -based controllers shall be assured by adjusting the controllers as required to eliminate oscillatory final control element operation. The transient stability of final control elements operating under the control of field mounted, and software - based automatic analog controllers shall be verified by applying control signal disturbances, monitoring the amplitude and decay rate of control parameter oscillations (if any), and making necessary controller adjustments as required to eliminate excessive oscillatory amplitudes and decay rates.
E. Electronic control stations incorporating proportional, integral or differential control circuits shall be optimally tuned, experimentally, by applying control signal disturbances and adjusting the
CITY OF BEAUMONT GENERAL ELECTRICAL REQUIREMENTS
MESA LIFT STATION UPGRADE 260000-11
gain, reset, or rate settings as required to achieve a proper response. Measured final control element variable position/speed setpoint settings shall be compared to measured final control element position/speed values at 0, 25, 50, 75, and 100 percent of span and the results checked against indicated accuracy tolerances.
3.9 TRAINING
A. Provide training in accordance with Section 260000.
B. Develop a Training Plan for the training requirements of Division 40 and submit it to the Engineer for approval. Coordinate with the Engineer and Owner the time and locations of each training session. Schedule the trainings for after the equipment has been pre -commissioned.
C. As part of the Training Plan, submit a resume for each individual to be providing training.
Training shall be performed by qualified representatives of the equipment manufacturers and shall be specific to each piece of equipment.
D. Each training session shall include a written agenda.
E. The Contractor shall train the Owner's personnel on the maintenance, calibration and repair of instruments provided.
F. Within 10 days after the completion of each session, the Contractor shall submit the following:
1. A list of Owner personnel who attended the training.
2. A copy of the training materials used during the session with notes, diagrams and comments.
END OF SECTION 260000
CITY OF BEAUMONT GENERAL ELECTRICAL REQUIREMENTS
MESA LIFT STATION UPGRADE 260000-12
SECTION 260519 - LOW -VOLTAGE ELECTRICAL POWER CONDUCTORS AND CABLES PART 1 - GENERAL
1.1 SUMMARY
A. This Section includes the following:
1. Building wires and cables rated 600 V and less.
2. Connectors, splices, and terminations rated 600 V and less.
1.2 ACTION SUBMITTALS
A. Product Data: For each type of product indicated.
1.3 INFORMATIONAL SUBMITTALS
A. Field quality -control test reports.
1.4 QUALITY ASSURANCE
A. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, Article 100, by a testing agency acceptable to authorities having jurisdiction, and marked for intended use.
B. Comply with NFPA 70.
PART 2 - PRODUCTS
2.1 CONDUCTORS AND CABLES
A. All conductors, conductor insulation and multiconductor cables shall comply with NEMA WC
70. B. Wire sizes shall be American Wire Gauge (AWG) sizes with Class B stranded construction Number 2 AWG and smaller shall be factory color coded with a separate color for each phase and neutral, which shall be used consistently throughout the system. Larger cables shall be coded by the use of colored tape. Conductors #6 AWG or smaller shall be THWN-2 or XHHW-2. Number 4 and larger shall be XHHW-2.
C. Individual or multiple conductor cables for power, control, and alarm circuits of 480 volts or less shall be insulated for not less than 600V.
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D. Where wire size is not indicated, they shall be of the size required by the NEC, except that no wire external to panels and motor control centers shall be less than #12 AWG, unless specifically noted on the Plans. Control wires shall be allowed to be #14 so long as there is appropriate protection (fuse or circuit breaker sized at 15A or less).
E. Multi -conductor tray cables shall be rated 600 volts, listed by UL as Type TC cable or ITC for instrumentation cable only per Article 340 of the NEC. The individual conductors shall be UL listed as Type XHHW, with a sunlight -resistant overall jacket. Conductor sizes shall be the same as for power and lighting wire and control wire above. Connectors/Terminators shall be watertight and manufactured of the same material as the cabling system referenced elsewhere in division 26.
F. Multi -conductor tray cables to be installed in classified areas shall be armored, rated 600 volts, listed by UL as Type MC -HL cable per Article 340 of the NEC. The individual conductors shall be UL listed as Type XHHW, with a sunlight -resistant overall jacket. Conductor sizes shall be the same as for power and lighting wire and control wire above. Connectors/terminators shall be rated for classified areas and submitted upon accordingly.
G. All wiring shall be as indicated on the Plans. Wires shall be new and shall be soft drawn copper with not less than 97 percent conductivity. The wire and cable shall have size, grade of insulation, voltage, and manufacturer's name permanently marked on the outer covering at not more than 2 - foot intervals. All wires shall conform to the latest Standards of the ASTM, and ICEA, and shall be tested for their full length by these Standards. Insulation thickness shall be not less than that specified by the National Electrical Code.
H. VFD Cable:
1. Comply with UL 1277, UL 1685, and NFPA 70 for Type TC-ER cable.
2. Type TC-ER with oversized crosslinked polyethylene insulation, spiral -wrapped foil plus 85 percent coverage braided shields and insulated full-size ground wire, and sunlight- and oil -resistant outer PVC jacket.
3. Comply with UL requirements for cables in direct burial or Classes I and II, Division 2 hazardous location applications.
The following table describes the conductor color code that shall be followed:
120/208VAC
480VAC
12VDC
24VDC
24VAC
Phase 1
Black
Brown
Phase 2
Red
Orange
Phase 3
Blue
Yellow
Neutrals/Commons
White
White
Orange/White
Blue/White
Yellow/White
Ground
Green
Green
Green
Green
Green
Control
Red
Orange
Blue
Yellow
J. Manufacturers: Subject to compliance with requirements, provide products by one of the following:
1. American Insulated Wire Corporation
2. Cablec Corporation
CITY OF BEAUMONT LOW -VOLTAGE ELECTRICAL POWER CONDUCTORS AND CABLES MESA LIFT STATION UPGRADE 260519-2
3. Okonite Company
4. Southwire Company
5. Or Approved Equal
2.2 CONNECTORS AND SPLICES
A. Description: Factory -fabricated connectors and splices of size, ampacity rating, material, type, and class for application and service indicated.
B. Connectors and splices shall be rated at not less than 600 volts. Splicing shall join conductors mechanically and electrically to provide a complete circuit prior to installation of insulation.
C. Splices in wires No. 10 AWG and smaller shall be made with an insulated, solderless, pressure type connector, Type I, Class 1, Grade B, Style G, or Type II, Class 1 of FS W -S-610 and conforming to the applicable requirements of UL 486A.
D. Splices in wires No. 8 AWG and larger shall be made with noninsulated, solderless, pressure type connector, Type II, Class 2 of FS W -S-610, conforming to the applicable requirements of UL 486A and UL 486B. They shall then be covered with an insulation and jacket material equivalent to the conductor insulation and jacket.
E. Insulated conductor splices below grade or in wet locations shall be sealed type conforming to ANSI C119.1 or shall be waterproofed by a sealant -filled, thick wall, heat shrinkable, thermosetting tubing or by pouring a thermosetting resin into a mold that surrounds the joined conductors.
F. Bare conductor splices in wet locations or below grade shall be of the exothermic type.
G. Manufacturers: Subject to compliance with requirements, provide products by one of the following:
1. Hubbell Power Systems, Inc.
2. O-Z/Gedney; EGS Electrical Group LLC.
3. 3M; Electrical Products Division.
4. Or Approved Equal
2.3 PULLING LUBRICANT
A. All cables shall be properly coated with a water -based (wax -based is not acceptable) pulling compound before being pulled into conduits so as to prevent mechanical damage to the cables during installation. Lubricants shall be approved by the cable manufacturer for use with the cable being installed.
B. Manufacturers: Subject to compliance with requirements, provide products by one of the following:
1. Polywater
2. Ideal Aqua -Gel
3. Or Approved Equal
CITY OF BEAUMONT LOW -VOLTAGE ELECTRICAL POWER CONDUCTORS AND CABLES MESA LIFT STATION UPGRADE 260519-3
PART 3 - EXECUTION
3.1 CONDUCTOR MATERIAL APPLICATIONS
A. Feeders: Copper, stranded for all sizes.
B. Branch Circuits: Copper. Stranded for all sizes.
3.2 CONDUCTOR INSULATION AND MULTICONDUCTOR CABLE APPLICATIONS AND
WIRING METHODS
A. Service Entrance: Type XHHW-2, single conductors in raceway B. Exposed Feeders and Branch Circuits: Type THWN-2 or XHHW-2 based on wire size requirements described in Part 2, single conductors in raceway. Multiconductor Tray Cable type TC shall be used where runs are to be in cable trays as shown on the drawings.
C. Feeders and Branch Circuits Concealed in Ceilings, Walls, Partitions, and Crawlspaces:
Type THWN-2 or XHHW-2 based on wire size requirements described in Part 2, single conductors in raceway. Metal -clad cable, Type MC shall be allowed in ceilings that are considered dry and non -corrosive areas.
D. Feeders and Branch Circuits Concealed in Concrete, below Slabs -on -Grade, and Underground:
Type THWN-2 or XHHW-2 based on wire size requirements described in Part 2, single conductors in raceway.
E. Cord Drops and Portable Appliance Connections: Type SO, hard service cord with stainless - steel, wire -mesh, strain relief device at terminations to suit application.
F. Class 1 Control Circuits: Type THWN-2, in raceway. Multiconductor Tray Cable type TC shall be used where runs are to be in cable trays as shown on the drawings.
G. Class 2 Control Circuits: Type THWN-2, in raceway. Power -limited tray cable shall be used where runs are to be in cable tray as shown on the drawings.
3.3 INSTALLATION OF CONDUCTORS AND CABLES
A. Conceal cables in finished walls, ceilings, and floors, unless otherwise indicated.
B. As far as practical, all circuits shall be continuous from origin to termination without splices in intermediate pull boxes. Sufficient slack shall be left at the termination to make proper connections. In no case shall a splice be pulled into the conduit. Conductor splicing shall not be permitted without the Engineer's approval. Conductor splices shall not be made in underground junction boxes or manholes unless specifically noted on the plans.
C. Each feeder and branch circuit shall be installed in its own individual conduit unless combining feeder and branch circuits is permitted as defined in the following:
1. As specifically indicated on the Plans.
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2. For lighting, multiple branch circuits may be installed in a conduit as allowed by the NEC and with the wire ampacity de -rated in accordance with the requirements of the NEC.
Conduit fill shall not exceed the limits established by the NEC.
3. When field conditions dictate, and written permission is obtained from the Engineer.
D. Use manufacturer -approved pulling compound or lubricant when pulling conductors; compound used must not deteriorate conductor or insulation. Do not exceed manufacturer's recommended maximum pulling tensions and sidewall pressure values.
E. Feeder and branch circuits shall be isolated from each other and from all instrumentation and control circuits.
F. Control circuits shall be isolated from all other feeder, branch and instrumentation circuits, except as noted above. 12VDC, 24VDC and 48VDC control circuits may be combined into one conduit. 120/208/240VAC control circuits shall be isolated from all DC control circuits. 277/480VAC circuits shall be isolated from all other voltages.
G. Single conductor cable in cable trays shall be No. 1/0 or larger and shall be of a type listed and marked for use in cable trays. Tray cable smaller than 1/0 shall be multi -conductor, with outer jacket.
H. Use pulling means, including fish tape, cable, rope, and basket -weave wire/cable grips, that will not damage cables or raceway.
I. Install exposed cables parallel and perpendicular to surfaces of exposed structural members and follow surface contours where possible.
J. Support cables according to Section 260529 "Hangers and Supports for Electrical Systems." K. Identify and color -code conductors and cables according to Section 260553 "Identification for Electrical Systems."
L. Tighten electrical connectors and terminals according to manufacturer's published torque - tightening values. If manufacturer's torque values are not indicated, use those specified in UL 486A and UL 486B.
M. Make splices and taps that are compatible with conductor material and that possess equivalent or better mechanical strength and insulation ratings than unspliced conductors.
N. Wiring at Outlets and Switches: Install conductor at each outlet, with at least 6 inches (150 mm) of slack.
3.4 SLEEVE AND SLEEVE -SEAL INSTALLATION FOR ELECTRICAL PENETRATIONS A. Install sleeves and sleeve seals at penetrations of exterior floor and wall assemblies. Comply with requirements in Section 260544 "Sleeves and Sleeve Seals for Electrical Raceways and Cabling."
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3.5 FIRESTOPPING
A. Apply firestopping to electrical penetrations of fire -rated floor and wall assemblies to restore original fire -resistance rating of assembly according to Section 078413 "Penetration Firestopping."
3.6 FIELD QUALITY CONTROL
A. Perform tests and inspections and prepare test reports.
B. Tests and Inspections:
1. After installing conductors and cables and before electrical circuitry has been energized, test service entrance and feeder conductors, and conductors feeding the following critical equipment and services for compliance with requirements. a. All conductors with voltages at 277V or higher and corresponding neutrals and grounds.
b. All conductors #8 and larger.
c. All motor leads and corresponding grounds.
2. Perform each visual and mechanical inspection and electrical test stated in NETA Acceptance Testing Specification. Certify compliance with test parameters.
3. Infrared Scanning: After Substantial Completion, but not more than 60 days after Final Acceptance, perform an infrared scan of each splice in cables and conductors No. 3 AWG and larger. Remove box and equipment covers so splices are accessible to portable scanner.
a. Follow-up Infrared Scanning. Perform an additional follow-up infrared scan of each splice 11 months after date of Substantial Completion.
b. Instrument: Use an infrared scanning device designed to measure temperature or to detect significant deviations from normal values. Provide calibration record for device.
c. Record of Infrared Scanning: Prepare a certified report that identifies splices checked and that describes scanning results. Include notation of deficiencies detected, remedial action taken, and observations after remedial action.
C. Test Reports: Prepare a written report to record the following:
1. Test procedures used.
2. Test results that comply with requirements.
3. Test results that do not comply with requirements and corrective action taken to achieve compliance with requirements.
D. Remove and replace malfunctioning units and retest as specified above.
END OF SECTION 260519
CITY OF BEAUMONT LOW -VOLTAGE ELECTRICAL POWER CONDUCTORS AND CABLES MESA LIFT STATION UPGRADE 260519-6
SECTION 260523 - CONTROL -VOLTAGE ELECTRICAL POWER CABLES PART 1 - GENERAL
1.1 SUMMARY
A. Section Includes:
1. Instrumentation cabling.
2. Low -voltage control cabling.
3. Control -circuit conductors.
4. Identification products.
B. Related Sections
1. For structured cabling systems, including fiber optic cabling and CAT6 cabling refer to Section 409533.
1.2 DEFINITIONS
A. Low Voltage: As defined in NFPA 70 for circuits and equipment operating at less than 50 V or for remote -control and signaling power -limited circuits.
1.3 ACTION SUBMITTALS
A. Product Data: For each type of product indicated.
1.4 INFORMATIONAL SUBMITTALS
A. Field quality -control reports.
1.5 QUALITY ASSURANCE
A. Testing Agency Qualifications: Member company of an NRTL.
B. Surface -Burning Characteristics: As determined by testing identical products according to ASTM E 84 by a qualified testing agency. Identify products with appropriate markings of applicable testing agency.
1. Flame -Spread Index: 25 or less.
2. Smoke -Developed Index: 50 or less.
C. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended location and application.
CITY OF BEAUMONT CONTROL -VOLTAGE ELECTRICAL POWER CABLES MESA LIFT STATION UPGRADE 260523-1
1.6 DELIVERY, STORAGE, AND HANDLING
A. Test cables upon receipt at Project site.
B. Test each pair of each cable for open and short circuits.
PART 2 - PRODUCTS
2.1 PATHWAYS
A. Conduit and Boxes: Comply with requirements in Section 260533 "Raceways and Boxes for Electrical Systems."
1. Outlet boxes shall be no smaller than 2 inches wide, 3 inches high, and 2-1/2 inches deep.
2.2 INSTRUMENTATION CABLE
A. Instrument cable shall be Type TC, and have the number of individually shielded twisted pairs indicated on the Plans and shall be insulated for not less than 600 volts. Unless otherwise indicated, conductor size shall be No. 18 AWG minimum. Shielded, grounded instrumentation cable shall be used for all analog and low voltage digital signals.
B. The jacket shall be flame retardant with 90 degrees C temperature rating. The cable shield shall be a minimum of 2.3 mil aluminum or copper tape overlapped to provide 100 percent coverage and a tinned copper drain wire.
C. The conductors shall be bare soft annealed copper, Class B, 7 strand minimum concentric lay with 15 mils nominal thickness, nylon jacket, 4 mil nominal thickness, 90 degrees C temperature rating. One conductor within each pair shall be numerically identified.
D. Pairs shall be assembled with a nominal 2 -inch lay and shall then be group shielded with a minimum of 1.3 mil aluminum or copper tape overlapped to provide 100 percent coverage. All group shields shall be completely isolated from each other.
E. Pairs installed in a cable tray shall have a UV resistant jacket, and shall have a jacket intended for cable tray use.
2.3 RS -232 CABLE
A. Standard Cable: NFPA 70, Type CM.
1. Paired, two pairs, No. 22 AWG, stranded (7x30) tinned -copper conductors.
2. Polypropylene insulation.
3. Individual aluminum foil -polyester tape shielded pairs with 100 percent shield coverage.
4. PVC jacket.
5. Pairs are cabled on common axis with No. 24 AWG, stranded (7x32) tinned -copper drain wire.
6. Flame Resistance: Comply with UL 1581.
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B. Plenum -Rated Cable: NFPA 70, Type CMP.
1. Paired, two pairs, No. 22 AWG, stranded (7x30) tinned -copper conductors.
2. Plastic insulation.
3. Individual aluminum foil -polyester tape shielded pairs with 100 percent shield coverage.
4. Plastic jacket.
5. Pairs are cabled on common axis with No. 24 AWG, stranded (7x32) tinned -copper drain wire.
6. Flame Resistance: Comply with NFPA 262.
2.4 RS -485 CABLE
A. Standard Cable: NFPA 70, Type CM.
1. Paired, two pairs, twisted, No. 22 AWG, stranded (7x30) tinned -copper conductors.
2. PVC insulation.
3. Unshielded.
4. PVC jacket.
5. Flame Resistance: Comply with UL 1581.
B. Plenum -Rated Cable: NFPA 70, Type CMP.
1. Paired, two pairs, No. 22 AWG, stranded (7x30) tinned -copper conductors.
2. Fluorinated ethylene propylene insulation.
3. Unshielded.
4. Fluorinated ethylene propylene jacket.
5. Flame Resistance: NFPA 262, Flame Test.
2.5 LOW -VOLTAGE CONTROL CABLE
A. Paired Cable: NFPA 70, Type CMG.
1. One pair, twisted, No. 16 AWG, stranded (19x29) tinned -copper conductors.
2. PVC insulation.
3. Unshielded.
4. PVC jacket.
5. Flame Resistance: Comply with UL 1581.
B. Plenum -Rated, Paired Cable: NFPA 70, Type CMP.
1. One pair, twisted, No. 16 AWG, stranded (19x29) tinned -copper conductors.
2. PVC insulation.
3. Unshielded.
4. PVC jacket.
5. Flame Resistance: Comply with NFPA 262.
C. Paired Cable: NFPA 70, Type CMG.
1. One pair, twisted, No. 18 AWG, stranded (19x30) tinned -copper conductors.
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2. PVC insulation.
3. Unshielded.
4. PVC jacket.
5. Flame Resistance: Comply with UL 1581.
D. Plenum -Rated, Paired Cable: NFPA 70, Type CMP.
1. One pair, twisted, No. 18 AWG, stranded (19x30) tinned -copper conductors.
2. Fluorinated ethylene propylene insulation.
3. Unshielded.
4. Plastic jacket.
5. Flame Resistance: NFPA 262, Flame Test.
2.6 CONTROL -CIRCUIT CONDUCTORS
A. Class 1 Control Circuits: Stranded copper, Type THHN-THWN, in raceway, complying with UL 83.
B. Class 2 Control Circuits: Stranded copper, Type THHN-THWN, in raceway, complying with UL 83.
C. Class 3 Remote -Control and Signal Circuits: Stranded copper, Type TW or Type TF, complying with UL 83.
2.7 IDENTIFICATION PRODUCTS
A. Manufacturers: Subject to compliance with requirements, provide products by one of the following:
1. Brady Corporation.
2. Panduit Corp.
3. Or Approved Equal.
B. Comply with UL 969 for a system of labeling materials, including label stocks, laminating adhesives, and inks used by label printers.
C. Comply with requirements in Section 260553 "Identification for Electrical Systems." PART 3 - EXECUTION
3.1 INSTALLATION OF PATHWAYS
A. Comply with TIA/EIA-569-A for pull -box sizing and length of conduit and number of bends between pull points.
B. Comply with requirements in Section 260533 "Raceways and Boxes for Electrical Systems" for installation of conduits and wireways.
CITY OF BEAUMONT CONTROL -VOLTAGE ELECTRICAL POWER CABLES MESA LIFT STATION UPGRADE 260523-4
C. Install manufactured conduit sweeps and long -radius elbows if possible.
D. Pathway Installation in Equipment Rooms:
1. Position conduit ends adjacent to a corner on backboard if a single piece of plywood is installed or in the corner of room if multiple sheets of plywood are installed around perimeter walls of room.
2. Install cable trays to route cables if conduits cannot be located in these positions.
3. Secure conduits to backboard if entering room from overhead.
4. Extend conduits 3 inches above finished floor.
5. Install metal conduits with grounding bushings and connect with grounding conductor to grounding system.
E. Backboards: Install backboards with 96 -inch dimension vertical. Butt adjacent sheets tightly and form smooth gap -free corners and joints.
3.2 INSTALLATION OF CONDUCTORS AND CABLES
A. Comply with NECA 1.
B. General Requirements for Cabling:
1. Comply with TIA/EIA-568-B.1.
2. Comply with BICSI ITSIM, Ch. 6, "Cable Termination Practices."
3. Terminate all conductors; no cable shall contain unterminated elements. Make terminations only at indicated outlets, terminals, and cross -connect and patch panels.
4. Cables may not be spliced. Secure and support cables at intervals not exceeding 30 inches and not more than 6 inches from cabinets, boxes, fittings, outlets, racks, frames, and terminals.
5. Bundle, lace, and train conductors to terminal points without exceeding manufacturer's limitations on bending radii, but not less than radii specified in BICSI ITSIM, "Cabling Termination Practices" Chapter. Install lacing bars and distribution spools.
6. 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.
7. Cold -Weather Installation: Bring cable to room temperature before dereeling. Heat lamps shall not be used for heating.
8. Pulling Cable: Comply with BICSI ITSIM, Ch. 4, "Pulling Cable." Monitor cable pull tensions.
C. Installation of Control -Circuit Conductors:
1. Install wiring in raceways. Comply with requirements specified in Section 260533 "Raceways and Boxes for Electrical Systems."
D. Open -Cable Installation:
1. Install cabling with horizontal and vertical cable guides in telecommunications spaces with terminating hardware and interconnection equipment.
CITY OF BEAUMONT CONTROL -VOLTAGE ELECTRICAL POWER CABLES MESA LIFT STATION UPGRADE 260523-5
2. Suspend copper cable not in a wireway or pathway a minimum of 8 inches above ceilings by cable supports not more than 60 inches apart.
3. Cable shall not be run through structural members or in contact with pipes, ducts, or other potentially damaging items.
E. Separation from EMI Sources:
1. Comply with BICSI TDMM and TIA/EIA-569-A recommendations for separating unshielded copper voice and data communication cable from potential EMI sources, including electrical power lines and equipment.
2. Separation between open communications cables or cables in nonmetallic raceways and unshielded power conductors and electrical equipment shall be as follows:
a. Electrical Equipment Rating Less Than 2 kVA: A minimum of 12 inches. b. Electrical Equipment Rating between 2 and 5 kVA: A minimum of 24 inches. c. Electrical Equipment Rating More Than 5 kVA: A minimum of 48 inches.
3. Separation between communications cables in grounded metallic raceways and unshielded power lines or electrical equipment shall be as follows:
a. Electrical Equipment Rating Less Than 2 kVA: A minimum of 6 inches. b. Electrical Equipment Rating between 2 and 5 kVA: A minimum of 12 inches. c. Electrical Equipment Rating More Than 5 kVA: A minimum of 24 inches.
4. 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:
a. Electrical Equipment Rating Less Than 2 kVA: 3 inches. b. Electrical Equipment Rating between 2 and 5 kVA: A minimum of 6 inches. c. Electrical Equipment Rating More Than 5 kVA: A minimum of 12 inches.
5. Separation between Cables and Electrical Motors and Transformers: A minimum of 48 inches.
6. Separation between Cables and Fluorescent Fixtures: A minimum of 6 inches.
3.3 REMOVAL OF CONDUCTORS AND CABLES
A. Remove abandoned conductors and cables.
3.4 CONTROL -CIRCUIT CONDUCTORS
A. Minimum Conductor Sizes:
1. Class 1 remote -control and signal circuits, No. 14 AWG.
2. Class 2 low -energy, remote -control, and signal circuits, No. 16 AWG.
3. Class 3 low -energy, remote -control, alarm, and signal circuits, No 12 AWG.
CITY OF BEAUMONT CONTROL -VOLTAGE ELECTRICAL POWER CABLES MESA LIFT STATION UPGRADE 260523-6
3.5 FIRESTOPPING
A. Comply with requirements in Section 078413 "Penetration Firestopping." B. Comply with TIA/EIA-569-A, Annex A, "Firestopping."
C. Comply with BICSI TDMM, "Firestopping Systems" Article.
3.6 GROUNDING
A. For data communications wiring, comply with ANSI -J -STD -607-A and with BICSI TDMM, "Grounding, Bonding, and Electrical Protection" Chapter.
B. For low -voltage wiring and cabling, comply with requirements in Section 260526 "Grounding and Bonding for Electrical Systems."
3.7 IDENTIFICATION
A. Identify system components, wiring, and cabling according to TIA/EIA-606-A. Comply with requirements for identification specified in Section 260553 "Identification for Electrical Systems."
3.8 FIELD QUALITY CONTROL
A. Tests and Inspections:
1. Visually inspect cable placement, cable termination, grounding and bonding, equipment and patch cords, and labeling of all components.
B. Document data for each measurement. Print data for submittals in a summary report that is formatted using Table 10.1 in BICSI TDMM as a guide, or transfer the data from the instrument to the computer, save as text files, print, and submit.
C. End -to -end cabling will be considered defective if it does not pass tests and inspections.
D. Prepare test and inspection reports.
END OF SECTION 260523
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SECTION 260526 - GROUNDING AND BONDING FOR ELECTRICAL SYSTEMS PART 1 - GENERAL
1.1 SUMMARY
A. Section Includes: Grounding systems and equipment.
1.2 ACTION SUBMITTALS
A. Product Data: For each type of product indicated.
1.3 INFORMATIONAL SUBMITTALS
A. Field quality -control reports.
1.4 QUALITY ASSURANCE
A. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended location and application.
B. Comply with UL 467 for grounding and bonding materials and equipment.
PART 2 - PRODUCTS
2.1 CONDUCTORS
A. Insulated Conductors: Tinned -copper wire or cable insulated for 600 V unless otherwise required by applicable Code or authorities having jurisdiction.
B. Bare Copper Conductors:
1. Stranded Conductors: ASTM B 8.
2. Tinned Conductors: ASTM B 33.
3. Bonding Cable: 28 kcmil, 14 strands of No. 17 AWG conductor, 1/4 inch in diameter.
4. Bonding Conductor: No. 4 or No. 6 AWG, stranded conductor.
5. Bonding Jumper: Copper tape, braided conductors terminated with copper ferrules; 1-5/8 inches wide and 1/16 inch thick.
6. Tinned Bonding Jumper: Tinned -copper tape, braided conductors terminated with copper ferrules; 1-5/8 inches wide and 1/16 inch thick.
CITY OF BEAUMONT GROUNDING AND BONDING FOR ELECTRICAL SYSTEMS MESA LIFT STATION UPGRADE 260526-1
2.2 CONNECTORS
A. Listed and labeled by an NRTL acceptable to authorities having jurisdiction for applications in which used and for specific types, sizes, and combinations of conductors and other items connected.
B. Bolted Connectors for Conductors and Pipes: Copper or copper alloy, pressure type with at least two bolts.
1. Pipe Connectors: Clamp type, sized for pipe.
C. Welded Connectors: Exothermic -welding kits of types recommended by kit manufacturer for materials being joined and installation conditions.
2.3 GROUNDING ELECTRODES
A. Ground Rods: Copper -clad; 3/4 inch in diameter and 10 feet long.
PART 3 - EXECUTION
3.1 APPLICATIONS
A. Conductors: Install stranded conductors all conductor sizes.
B. Underground Grounding Conductors: Install bare tinned -copper conductor, No. 4/0 AWG minimum. Bury at least 24 inches below grade.
C. Isolated Grounding Conductors: Green -colored insulation with continuous yellow stripe. On feeders with isolated ground, identify grounding conductor where visible to normal inspection, with alternating bands of green and yellow tape, with at least three bands of green and two bands of yellow.
D. Conductor Terminations and Connections:
1. Pipe and Equipment Grounding Conductor Terminations: Bolted connectors.
2. Underground Connections: Welded or approved compression connectors except at test wells and as otherwise indicated.
3. Connections to Ground Rods at Test Wells: Bolted connectors.
4. Connections to Structural Steel: Welded connectors.
3.2 EQUIPMENT GROUNDING
A. Install insulated equipment grounding conductors with the following items, in addition to those required by NFPA 70:
1. Feeders and branch circuits.
2. Lighting circuits.
3. Receptacle circuits.
CITY OF BEAUMONT GROUNDING AND BONDING FOR ELECTRICAL SYSTEMS MESA LIFT STATION UPGRADE 260526-2
4. Single-phase motor and appliance branch circuits.
5. Three-phase motor and appliance branch circuits.
6. Flexible raceway runs.
7. Armored and metal -clad cable runs.
8. Busway Supply Circuits: Install insulated equipment grounding conductor from grounding bus in the switchgear, switchboard, or distribution panel to equipment grounding bar terminal on busway.
9. Computer and Rack -Mounted Electronic Equipment Circuits: Install insulated equipment grounding conductor in branch -circuit runs from equipment -area power panels and power - distribution units.
10. X -Ray Equipment Circuits: Install insulated equipment grounding conductor in circuits supplying x-ray equipment.
B. Air -Duct Equipment Circuits: Install insulated equipment grounding conductor to duct -mounted electrical devices operating at 120 V and more, including air cleaners, heaters, dampers, humidifiers, and other duct electrical equipment. Bond conductor to each unit and to air duct and connected metallic piping.
C. Water Heater, Heat -Tracing, and Antifrost Heating Cables: Install a separate insulated equipment grounding conductor to each electric water heater and heat -tracing cable. Bond conductor to heater units, piping, connected equipment, and components.
D. Signal and Communication Equipment: In addition to grounding and bonding required by NFPA 70, provide a separate grounding system complying with requirements in TIA/ATIS J - STD -607-A.
1. For telephone, alarm, voice and data, and other communication equipment, provide No. 4 AWG minimum insulated grounding conductor in raceway from grounding electrode system to each service location, terminal cabinet, wiring closet, and central equipment location.
2. Service and Central Equipment Locations and Wiring Closets: Terminate grounding conductor on a 1/4 -by -4 -by -12 -inch grounding bus.
3. Terminal Cabinets: Terminate grounding conductor on cabinet grounding terminal.
E. Poles Supporting Outdoor Lighting Fixtures: Install grounding electrode and a separate insulated equipment grounding conductor in addition to grounding conductor installed with branch -circuit conductors.
3.3 INSTALLATION
A. Grounding Conductors: Route along shortest and straightest paths possible unless otherwise indicated or required by Code. Avoid obstructing access or placing conductors where they may be subjected to strain, impact, or damage.
B. Ground Rods: Drive rods until tops are 2 inches below finished floor or final grade unless otherwise indicated.
1. Interconnect ground rods with grounding electrode conductor below grade and as otherwise indicated. Make connections without exposing steel or damaging coating if any.
CITY OF BEAUMONT GROUNDING AND BONDING FOR ELECTRICAL SYSTEMS MESA LIFT STATION UPGRADE 260526-3
2. For grounding electrode system, install at least three rods spaced at least one -rod length from each other and located at least the same distance from other grounding electrodes, and connect to the service grounding electrode conductor.
C. Test Wells: Ground rod driven through drilled hole in bottom of handhole. Handholes are specified in Section 260543 "Underground Ducts and Raceways for Electrical Systems", and shall be at least 12 inches deep, with cover.
1. Test Wells: Install at least two test wells for each service unless otherwise indicated.
Install at the ground rods electrically closest to service entrance. Set top of test well flush with finished grade or floor.
D. Bonding Straps and Jumpers: Install in locations accessible for inspection and maintenance except where routed through short lengths of conduit.
1. Bonding to Structure: Bond straps directly to basic structure, taking care not to penetrate any adjacent parts.
2. Bonding to Equipment Mounted on Vibration Isolation Hangers and Supports: Install bonding so vibration is not transmitted to rigidly mounted equipment.
3. Use exothermic -welded connectors for outdoor locations; if a disconnect -type connection is required, use a bolted clamp.
E. Grounding and Bonding for Piping:
1. Metal Water Service Pipe: Install insulated copper grounding conductors, in conduit, from building's main service equipment, or grounding bus, to main metal water service entrances to building. Connect grounding conductors to main metal water service pipes; use a bolted clamp cormector or bolt a lug -type cormector to a pipe flange using one of the lug bolts of the flange. Where a dielectric main water fitting is installed, connect grounding conductor on street side of fitting. Bond metal grounding conductor conduit or sleeve to conductor at each end.
2. Water Meter Piping: Use braided -type bonding jumpers to electrically bypass water meters. Connect to pipe with a bolted connector.
3. Bond each aboveground portion of gas piping system downstream from equipment shutoff valve.
F. Bonding Interior Metal Ducts: Bond metal air ducts to equipment grounding conductors of associated fans, blowers, electric heaters, and air cleaners. Install bonding jumper to bond across flexible duct connections to achieve continuity.
3.4 LABELING
A. Comply with requirements in Section 260553 "Identification for Electrical Systems" for instruction signs. The label or its text shall be green.
B. Install labels at the telecommunications bonding conductor and grounding equalizer.
1. Label Text: "If this connector or cable is loose or if it must be removed for any reason, notify the facility manager."
CITY OF BEAUMONT GROUNDING AND BONDING FOR ELECTRICAL SYSTEMS MESA LIFT STATION UPGRADE 260526-4
3.5 FIELD QUALITY CONTROL
A. Perform the following tests and inspections and prepare test reports:
1. After installing grounding system but before permanent electrical circuits have been energized, test for compliance with requirements.
2. Inspect physical and mechanical condition. Verify tightness of accessible, bolted, electrical connections with a calibrated torque wrench according to manufacturer's written instructions.
3. Test completed grounding system at each location where a maximum ground -resistance level is specified, at service disconnect enclosure grounding terminal, and at ground test wells. Make tests at ground rods before any conductors are connected.
B. Report measured ground resistances that exceed the following values:
1. Power and Lighting Equipment or System with Capacity of 500 kVA and Less: 10 ohms.
2. Power and Lighting Equipment or System with Capacity of 500 to 1000 kVA: 5 ohms.
3. Power and Lighting Equipment or System with Capacity More Than 1000 kVA: 3 ohms.
4. Power Distribution Units or Panelboards Serving Electronic Equipment: 3 ohm(s).
C. Excessive Ground Resistance: If resistance to ground exceeds specified values, notify Engineer promptly and include recommendations to reduce ground resistance.
END OF SECTION 260526
CITY OF BEAUMONT GROUNDING AND BONDING FOR ELECTRICAL SYSTEMS MESA LIFT STATION UPGRADE 260526-5
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CITY OF BEAUMONT GROUNDING AND BONDING FOR ELECTRICAL SYSTEMS MESA LIFT STATION UPGRADE 260526-6
SECTION 260529 - HANGERS AND SUPPORTS FOR ELECTRICAL SYSTEMS PART 1 - GENERAL
1.1 SUMMARY
A. Section includes:
1. Hangers and supports for electrical equipment and systems.
2. Construction requirements for concrete bases.
1.2 PERFORMANCE REQUIREMENTS
A. Design supports for multiple raceways capable of supporting combined weight of supported systems and its contents.
B. Design equipment supports capable of supporting combined operating weight of supported equipment and connected systems and components.
C. Rated Strength: Adequate in tension, shear, and pullout force to resist maximum loads calculated or imposed for this Project, with a minimum structural safety factor of five times the applied force.
1.3 ACTION SUBMITTALS
A. Product Data: For steel slotted support systems.
B. Shop Drawings: Show fabrication and installation details and include calculations for the following:
1. Trapeze hangers. Include Product Data for components.
2. Steel slotted channel systems. Include Product Data for components.
3. Equipment supports.
1.4 INFORMATIONAL SUBMITTALS
A. Welding certificates.
1.5 QUALITY ASSURANCE
A. Welding: Qualify procedures and personnel according to AWS D1.1/D1.1M, "Structural Welding Code - Steel."
B. Comply with NFPA 70.
CITY OF BEAUMONT HANGERS AND SUPPORTS FOR ELECTRICAL SYSTEMS MESA LIFT STATION UPGRADE 260529-1
PART 2 - PRODUCTS
2.1 SUPPORT, ANCHORAGE, AND ATTACHMENT COMPONENTS
A. Steel Slotted Support Systems: Comply with MFMA-4, factory -fabricated components for field assembly.
1. Available Manufacturers: Subject to compliance with requirements, manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following:
2. Manufacturers: Subject to compliance with requirements, provide products by one of the following:
a. Allied Tube & Conduit.
b. Cooper B -Line, Inc.; a division of Cooper Industries. c. ERICO International Corporation.
d. GS Metals Corp.
e. Thomas & Betts Corporation.
f. Unistrut; Tyco International, Ltd.
g. Wesanco, Inc.
3. Metallic Coatings: Hot -dip galvanized after fabrication and applied according to MFMA-
4. 4. Nonmetallic Coatings: Manufacturer's standard PVC, polyurethane, or polyester coating applied according to MFMA-4.
5. Painted Coatings: Manufacturer's standard painted coating applied according to MFMA-
4. 6. Channel Dimensions: Selected for applicable load criteria.
B. Raceway and Cable Supports: As described in NECA 1 and NECA 101.
C. Conduit and Cable Support Devices: Steel or Stainless Steel hangers, clamps, and associated fittings, designed for types and sizes of raceway or cable to be supported.
D. Support for Conductors in Vertical Conduit: Factory -fabricated assembly consisting of threaded body and insulating wedging plug or plugs for non -armored electrical conductors or cables in riser conduits. Plugs shall have number, size, and shape of conductor gripping pieces as required to suit individual conductors or cables supported. Body shall be malleable iron.
E. Structural Steel for Fabricated Supports and Restraints: ASTM A 36/A 36M, steel plates, shapes, and bars; black and galvanized.
F. Mounting, Anchoring, and Attachment Components: Items for fastening electrical items or their supports to building surfaces include the following:
1. Powder -Actuated Fasteners: Threaded -steel stud, for use in hardened portland cement concrete, steel, or wood, with tension, shear, and pullout capacities appropriate for supported loads and building materials where used.
CITY OF BEAUMONT HANGERS AND SUPPORTS FOR ELECTRICAL SYSTEMS MESA LIFT STATION UPGRADE 260529-2
a. Available Manufacturers: Subject to compliance with requirements, manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following:
b. Manufacturers: Subject to compliance with requirements, provide products by one of the following:
1) Hilti Inc.
2) ITW Ramset/Red Head; a division of Illinois Tool Works, Inc. 3) MKT Fastening, LLC.
4) Simpson Strong -Tie Co., Inc.; Masterset Fastening Systems Unit.
2. Mechanical -Expansion Anchors: Insert -wedge -type, stainless steel, for use in hardened portland cement concrete with tension, shear, and pullout capacities appropriate for supported loads and building materials in which used.
a. Available Manufacturers: Subject to compliance with requirements, manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following:
b. Manufacturers: Subject to compliance with requirements, provide products by one of the following:
1) Cooper B -Line, Inc.; a division of Cooper Industries. 2) Empire Tool and Manufacturing Co., Inc.
3) Hilti Inc.
4) ITW Ramset/Red Head; a division of Illinois Tool Works, Inc. 5) MKT Fastening, LLC.
3. Concrete Inserts: Steel or malleable -iron, slotted support system units similar to MSS Type 18; complying with MFMA-4 or MSS SP -58.
4. Clamps for Attachment to Steel Structural Elements: MSS SP -58, type suitable for attached structural element.
5. Through Bolts: Structural type, hex head, and high strength. Comply with ASTM A 325.
6. Toggle Bolts: All -steel springhead type.
7. Hanger Rods: Threaded steel.
2.2 FABRICATED METAL EQUIPMENT SUPPORT ASSEMBLIES
A. Description: Welded or bolted, structural -steel shapes, shop or field fabricated to fit dimensions of supported equipment.
B. Materials: Comply with requirements in Section 055000 "Metal Fabrications" for steel shapes and plates.
CITY OF BEAUMONT HANGERS AND SUPPORTS FOR ELECTRICAL SYSTEMS MESA LIFT STATION UPGRADE 260529-3
PART 3 - EXECUTION
3.1 APPLICATION
A. Comply with NECA 1 and NECA 101 for application of hangers and supports for electrical equipment and systems except if requirements in this Section are stricter.
B. Maximum Support Spacing and Minimum Hanger Rod Size for Raceway: Space supports for EMT, IMC, and RMC as required by scheduled in NECA 1, where its Table 1 lists maximum spacings less than stated in NFPA 70. Minimum rod size shall be 1/4 inch (6 mm) in diameter.
C. Multiple Raceways or Cables: Install trapeze -type supports fabricated with steel slotted support system, sized so capacity can be increased by at least 25 percent in future without exceeding specified design load limits.
1. Secure raceways and cables to these supports with two -bolt conduit clamps.
D. Spring -steel clamps designed for supporting single conduits without bolts may be used for 1 -1/2 - inch (38 -mm) and smaller raceways serving branch circuits and communication systems above suspended ceilings and for fastening raceways to trapeze supports.
3.2 SUPPORT INSTALLATION
A. Comply with NECA 1 and NECA 101 for installation requirements except as specified in this Article.
B. Raceway Support Methods: In addition to methods described in NECA 1, EMT, IMC, RMC may be supported by openings through structure members, as permitted in NFPA 70.
C. Strength of Support Assemblies: Where not indicated, select sizes of components so strength will be adequate to carry present and future static loads within specified loading limits. Minimum static design load used for strength determination shall be weight of supported components plus 2001b (90 kg).
D. Mounting and Anchorage of Surface -Mounted Equipment and Components: Anchor and fasten electrical items and their supports to building structural elements by the following methods unless otherwise indicated by code:
1. To Wood: Fasten with lag screws or through bolts.
2. To New Concrete: Bolt to concrete inserts.
3. To Masonry: Approved toggle -type bolts on hollow masonry units and expansion anchor fasteners on solid masonry units.
4. To Existing Concrete: Expansion anchor fasteners.
5. Instead of expansion anchors, powder -actuated driven threaded studs provided with lock washers and nuts may be used in existing standard -weight concrete 4 inches (100 mm) thick or greater. Do not use for anchorage to lightweight -aggregate concrete or for slabs less than 4 inches (100 mm) thick.
6. To Steel: Welded threaded studs complying with AWS D1.1/D1.1M, with lock washers and nuts.
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7. To Light Steel: Sheet metal screws.
8. Items Mounted on Hollow Walls and Nonstructural Building Surfaces: Mount cabinets, panelboards, disconnect switches, control enclosures, pull and junction boxes, transformers, and other devices on slotted -channel racks attached to substrate by means that meet seismic -restraint strength and anchorage requirements.
E. Drill holes for expansion anchors in concrete at locations and to depths that avoid reinforcing bars.
3.3 INSTALLATION OF FABRICATED METAL SUPPORTS
A. Comply with installation requirements in Section 055000 "Metal Fabrications" for site -fabricated metal supports.
B. Cut, fit, and place miscellaneous metal supports accurately in location, alignment, and elevation to support and anchor electrical materials and equipment.
C. Field Welding: Comply with AWS D1.1/D1.1M.
3.4 CONCRETE BASES
A. Construct concrete bases of dimensions indicated but not less than 4 inches (100 mm) larger in both directions than supported unit, and so anchors will be a minimum of 10 bolt diameters from edge of the base.
B. Use 3000 -psi (20.7-MPa) 28 -day compressive -strength concrete. Concrete materials, reinforcement, and placement requirements are specified in Section 033000 "Cast -in -Place Concrete."
C. Anchor equipment to concrete base.
1. Place and secure anchorage devices. Use supported equipment manufacturer's setting drawings, templates, diagrams, instructions, and directions furnished with items to be embedded.
2. Install anchor bolts to elevations required for proper attachment to supported equipment.
3. Install anchor bolts according to anchor -bolt manufacturer's written instructions.
3.5 PAINTING
A. Touchup: Clean field welds and abraded areas of shop paint. Paint exposed areas immediately after erecting hangers and supports. Use same materials as used for shop painting. Comply with SSPC-PA 1 requirements for touching up field -painted surfaces.
1. Apply paint by brush or spray to provide minimum dry film thickness of 2.0 mils (0.05 mm).
B. Touchup: Comply with requirements in Section 099113 "Exterior Painting" for cleaning and touchup painting of field welds, bolted connections, and abraded areas of shop paint on miscellaneous metal.
CITY OF BEAUMONT HANGERS AND SUPPORTS FOR ELECTRICAL SYSTEMS MESA LIFT STATION UPGRADE 260529-5
C. Galvanized Surfaces: Clean welds, bolted connections, and abraded areas and apply galvanizing - repair paint to comply with ASTM A 780.
END OF SECTION 260529
CITY OF BEAUMONT HANGERS AND SUPPORTS FOR ELECTRICAL SYSTEMS MESA LIFT STATION UPGRADE 260529-6
SECTION 260533 - RACEWAYS AND BOXES FOR ELECTRICAL SYSTEMS PART 1 - GENERAL
1.1 SCOPE OF WORK
A. Furnish and install conduits as required, and as shown on the Plans. Materials employed shall be as shown on the Plans
1.2 SUBMITTALS
A. Submit product literature including manufacturer part number, model number, material, size, and specifications. Material shall not be installed until the Engineer has reviewed the submittal data.
B. If changes from the Plan are proposed, shop drawings shall be submitted for review and acceptance showing routing, conduit size, and number and size of wires in each conduit before installation of conduit and any related work.
C. Proposed routing of conduits buried under floor slabs -on -grade.
D. Identify conduit by tag number of equipment served or by circuit schedule number.
E. Proposed routing and details of construction including conduit and rebar embedded in floor slabs, columns, etc.
F. Proposed location and details of construction for openings in slabs and walls for raceway runs.
G. Refer to Section 26000 "General Electrical Requirements" for further submittal requirements.
1.3 REFERENCES
A. American National Standards Institute (ANSI): C80.1, Rigid Steel Conduit - Zinc -Coated.
B. National Electric Manufacturers Association (NEMA): RN -1, Polyvinyl -Chloride (PVC) Externally Coated Galvanized Rigid Steel Conduit.
C. Underwriters Laboratories Inc. (UL):
1. 1, Flexible Metal Conduit.
2. 6, Rigid Metal Conduit.
3. 360, Liquid -Tight Flexible Steel Conduit.
4. 467, Grounding and Bonding Equipment.
5. 514, Nonmetallic Outlet Boxes, Flush -Device Boxes and Covers.
6. 651, Schedule 40 and 80 Rigid PVC Conduit.
7. 870, Wireways, Auxiliary Gutters, and Associated Fittings.
8. 884, Underfloor Raceways and Fittings.
9. 886, Outlet Boxes and Fittings for Use in Hazardous (Classified) Locations.
CITY OF BEAUMONT RACEWAYS AND BOXES FOR ELECTRICAL SYSTEMS MESA LIFT STATION UPGRADE 260533-1
PART 2 - PRODUCTS
2.1 RACEWAYS
A. Exposed conduits in an unclassified or non -hazardous area shall be Galvanized Rigid Steel (GRS) unless specifically indicated otherwise on the Plans. Conduits in corrosive, hazardous, or damp areas shall be PVC coated GRS unless otherwise indicated. Underground and/or concrete encased conduits shall be PVC, unless otherwise indicated. All conduits concealed in block walls or steel framing shall be EMT with compression fittings unless otherwise indicated. Set screw type fittings in EMT conduit will not be accepted. All wiring, except as otherwise noted, shall be in conduit. Conduit size shall not be less than the National Electrical Code (NEC) size required for the conductors therein and shall not be smaller than 3/4 -inch. No underground conduit shall be less than one inch.
B. Condulets type fittings shall be Crouse -Hinds, Appleton, or equal with wedge nut covers. All condulets located outdoors, damp or wet locations shall be weather tight.
C. In unclassified areas, flexible conduit shall be grounding type, weatherproof, corrosion resistant, and watertight.
D. Couplings, connectors, and fittings shall be standard types specifically designed and manufactured for the purpose. They shall be installed to provide a firm mechanical assembly and electrical conductivity throughout. Conduit systems shall be water tight.
E. Expansion fittings shall be OZ type AX with jumper for exposed locations and type DX at structural expansion joints, Spring City, or equal. Conduits shall have expansion fittings in accordance with NEC.
F. The conduits and fittings shall be supported per NEC requirements as a minimum.
G. Sealing fittings shall be provided for classified areas per the NEC requirements in hazardous or corrosive areas. Fittings shall be poured after the final walk-thru unless otherwise directed in writing by the engineer.
2.2 GALVANIZED RIGID STEEL (GRS)
A. Conduits and couplings shall be hot -dipped galvanized with zinc coated threads and outer coating of zinc bichromate, in accordance with ANSI C80.1 standards, as manufactured by Jones & Laughlin Steel Corporation, Allied Tube & Conduit Corporation, Triangle PWC, or equal.
B. Steel conduit shall not be buried in earth without concrete encasement and additional corrosion protection. Instead buried steel conduit shall be PVC coated.
2.3 PVC COATED GALVANIZED RIGID STEEL (PVC-GRS)
A. PVC coated GRS conduit shall be installed where shown on the Plans or elsewhere specified and shall conform to NEMA RN -1 and ANSI C80.1 standards.
CITY OF BEAUMONT RACEWAYS AND BOXES FOR ELECTRICAL SYSTEMS MESA LIFT STATION UPGRADE 260533-2
B. The zinc surface of the conduit shall remain intact and undisturbed on both the inside and the outside of the conduit throughout the preparation and application processing. A Polyvinyl Chloride (PVC) coating shall be bonded to the galvanized outer surface of the conduit. The bond between the PVC coating and the conduit surface shall be greater than the tensile strength of the plastic. The thickness of the PVC coating shall be a minimum of 0.040 -inch (40 mil).
C. A loose coupling shall be furnished with each length of conduit. A PVC coating shall be bonded to the outer surface of the coupling and a PVC sleeve equal to the outside diameter of the uncoated conduit shall extend beyond both ends of the coupling approximately one pipe diameter or 1-1/2 inches, whichever is smaller. The wall thickness of the coating on the coupling and the sleeve shall be a minimum of 0.055 -inch (55 mil).
D. A PVC coating shall be bonded to the inner and outer surface of all conduit bodies and fittings and a PVC sleeve shall extend from all hubs. The wall thickness of the coating on conduit bodies and fittings and the sleeve walls shall be identical to those on couplings in length and thickness.
The covers on all conduit bodies shall be coated on both sides and shall be designed to be completely interchangeable. The inside of conduit bodies shall remain undisturbed in the processing.
E. Type 304 stainless steel screws shall be furnished and used to attach the cover to the conduit body. All coated material shall be installed and patched according to the manufacturer's recommended installation and patching instructions.
F. Conduit straps shall be PVC coated or stainless steel.
G. PVC coated conduits and fittings shall be as manufactured by Kor Kap Corporation, Occidental Coating Company, Rob -Roy, or equal.
H. PVC coated flexible conduits shall be liquid and vapor -tight and manufactured in accordance with UL 360 standards.
2.4 RIGID NONMETALLIC — PVC
A. Where specifically indicated on the Plans, or elsewhere specified, conduit may be high density Schedule 40, 90 degrees C, heavy-duty PVC. The conduit shall be manufactured from virgin polyvinyl chloride compound which meets ASTM D1784, NEMA TC-2, ANSI C33.91, and UL 651 standards. Smoke emissions shall be limited to less than 6 grams per 100 grams of material tested.
B. Where conduit concrete encasement is indicated on the Plans, conduit supports shall be installed at five-foot intervals. PVC conduit shall be manufactured by Carlon, Triangle Conduit & Cable, or equal.
2.5 LIQUIDTIGHT FLEXIBLE METAL CONDUIT
A. Liquidtight flexible metal conduit shall be liquid and vapor -tight, oil and ultraviolet ray resistant and manufactured in accordance with UL 360 standards. Liquidtight flexible metal conduit shall be formed of a continuous, spiral wound, galvanized steel core with an extruded PVC jacket. The PVC jacket shall be rated for high ambient heat applications, 90 degrees Celsius.
CITY OF BEAUMONT RACEWAYS AND BOXES FOR ELECTRICAL SYSTEMS MESA LIFT STATION UPGRADE 260533-3
B. For corrosive locations, liquidtight flexible metal conduit shall be formed of a continuous, spiral wound, aluminum core with an extruded PVC jacket. The PVC jacket shall be impervious to corrosive liquids and vapors and PVC coated fittings shall be utilized.
C. An external bonding conductor shall be required for flexible conduit connections containing circuits rated at 60 amps or greater and for sizes 1 1/2 " or larger. Flexible conduits and connectors for 1 1/4 " and smaller shall be listed for grounding.
D. For non -corrosive locations, connectors for liquidtight flexible conduit shall be galvanized, furnished with a sealing ring and locknut, and suitable for wet locations. For corrosive locations, connectors shall be galvanized PVC coated.
2.6 ELECTRICAL METALLIC TUBING (EMT)
A. Per UL Standard for Electrical Metallic Tubing No. 797. Galvanized mild steel with interior coat of enamel.
B. Fittings shall be steel set -screw type. Cast type, indenter type or compression steel fittings are not acceptable.
C. Approved for plan specified locations only. Approved for conduits concealed in block walls and concealed in steel framed walls. Not approved for process areas where wash down or high humidity conditions exist.
2.7 ALUMINUM CONDUIT
A. Aluminum conduit is approved for wet and corrosive areas only. Prior approval from the engineer must be obtained when substituting for PVC coated.
B. Aluminum hardware and conduit shall be isolated from all dissimilar materials as appropriate.
1. Isolation from dissimilar metals in channel or support by a single layer of scotch #33+ or approved equal.
2. Isolation from concrete shall be by neoprene gaskets.
3. Aluminum shall not be used for concrete penetrations.
C. Aluminum conduit shall contain less than 0.4% copper.
2.8 STAINLESS STEEL CONDUIT
A. Stainless Steel Conduit conduit is approved for all exposed conduit locations. Prior approval from the engineer must be obtained when substituting for PVC coated.
B. Stainless Steel conduit and all fittings and support hardware shall be 316 SS.
CITY OF BEAUMONT RACEWAYS AND BOXES FOR ELECTRICAL SYSTEMS MESA LIFT STATION UPGRADE 260533-4
2.9 CABLE TRAY SYSTEM
A. Provide cable tray systems composed of straight sections, fittings, and accessories as defined in the latest NEMA Standards publication VE-1 - Ventilated Cable Tray.
1. Provide cable trays and fittings shall constructed of materials suited for the area classification as noted below.
2. Provide cable trays shall be of the ladder type with availability of 6, 9, and 12 -inch spacing.
3. Provide tray sizes with a 3, 4, 5, or 6 -inch minimum usable load depth, as indicated on the drawings.
4. Provide loading capacities that meet the NEMA weight classification with a safety factor of 1.5.
5. In corrosive, damp, or Hazardous locations, provide cable trays manufactured of aluminum.
6. In non -classified areas provide cable trays manufactured of Hot Dipped galvanized materials. All cuts and welds shall be touched up with cold galvanizing spray per the raceway specification.
7. Separate power, control, signal and communications cables by grounded metallic dividers or run in separate trays.
8. Manufacturer, or Approved Equal
a. Husky
b. B -Line
c. T.J. Cope
PART 3 - EXECUTION
3.1 INSTALLATION
A. Conduit runs are schematic only, and shall be modified as required to suit field conditions, subject to review and acceptance by the Engineer.
B. Conduit shall run continuously between outlets and shall be provided with junction boxes where connections are made. Couplings, connectors, and fittings shall be acceptable types designed and manufactured for the purpose, and shall provide a firm mechanical assembly, and electrical conductivity throughout.
C. Conduit runs shall be straight and true. Elbows, offsets, and bends shall be uniform and symmetrical. Changes in direction shall be made with long radius bends, or with fittings of the condulet type.
D. Conduit runs in buildings and structures shall be concealed where possible except as specifically noted, or accepted by the Engineer.
E. Conduit runs shall not interfere with the proper and safe operation of equipment, and shall not block or interfere with ingress or egress, including equipment removal hatches.
F. Exposed conduits shall be securely fastened with clamps, or straps, intended for conduit use. All exposed conduit shall be run on the walls and ceiling only and shall be parallel to the planes of
CITY OF BEAUMONT RACEWAYS AND BOXES FOR ELECTRICAL SYSTEMS MESA LIFT STATION UPGRADE 260533-5
the walls or ceiling. No diagonal runs will be permitted. Flexible conduit shall be used only for short lengths required to facilitate connections between rigid conduit to vibrating equipment such as motors, fans, and transformers. The maximum length of flexible conduit shall be 3 feet, unless approved in writing by engineer. Flexible conduit shall not be used for electrician's convenience where rigid conduit could be used.
G. Conduit runs on water -bearing walls shall be supported one inch away from the wall on an accepted channel When channel galvanizing, or other coating, is cut or otherwise damaged, it shall be field coated to original condition. No conduit shall be run in water -bearing walls, unless specifically designated otherwise.
H. Conduit shall be thoroughly reamed to remove burrs. IMC or GRS shall be reamed during the threading process, and Rigid Nonmetallic PVC shall be reamed before applying fittings. A zinc rich cold galvanizing shall be used to restore corrosion protection on field cut threads.
Bushings and lock nuts or hubs shall be used at conduit terminations. Conduit, bushings, locknuts, and enclosures shall be fastened to the conduit system prior to pulling wire. Splitting the bushings for installation will not be accepted. Hubs shall be used in all process areas outside of electrical rooms unless otherwise specified. The total number of bends in any run between pull points shall not exceed 360 degrees. Junction boxes and pull boxes shall be installed at points acceptable to the Engineer. Conduit ends shall be plugged to prevent the entrance of moisture or debris during construction. All spare conduits shall be adequately capped and shall contain a suitable pull string. Splices shall be made in junction boxes only. Splices in conduit bodies will not be accepted.
J. Joints shall be set up tight. Hangers and fastenings shall be secure, and of a type appropriate in design, and dimensions, for the particular application.
K. Conduit runs shall be cleaned and internally sized (obstruction tested) so that no foreign objects, or obstructions remain in the conduit prior to pulling in conductors.
L. After installation of complete conduit runs 2 inches and larger, conduits shall be snaked with a conduit cleaner equipped with a cylindrical mandrel of a diameter not less than 85 percent of the nominal diameter of the conduit. Conduits through which the mandrel will not pass shall not be used. Test results should be submitted to the engineer.
M. Expansion fittings shall be installed across all expansion joints and at other locations where necessary to compensate for thermal expansion and contraction.
N. Provide trenching, backfill, and compaction for conduits installed underground.
O. Raceways running parallel to hot water or steam piping shall maintain a distance of 6 inches from the piping.
P. Raceways crossing steam or liquid filling piping shall cross above the piping.
Q. In slab conduits, shall be covered by a minimum of 2 inches of concrete.
R. Conduits of the same duty (480V Power, 120V Power, 120V Controls and signals) shall have a minimum separation of 2 inches between conduits.
CITY OF BEAUMONT RACEWAYS AND BOXES FOR ELECTRICAL SYSTEMS MESA LIFT STATION UPGRADE 260533-6
S. Conduits and raceways carrying signal wiring shall have a minimum separation of 12 inches from 480V power raceways, 6 inches from 120V power raceways, and 4 inches from 120V control raceways.
T. Raceways with 120V Control shall maintain a distance of 12 inches from 480V power raceways, 6 inches from 120V power raceways.
U. Raceways with 120V power shall maintain a distance of 6 inches from 480V power raceways.
3.2 CABLE TRAYS
A. Provide cable trays in strict accordance with the manufacturer's printed instructions.
B. Allowable cable fill areas shall meet NEC Article 392 - Cable Trays requirements.
C. Verify cable tray fills prior to installation based on cables and trays actually provided.
D. Maintain continuous grounding of cable trays including bonding jumpers in accordance with the requirements of NEC Article 392.
E. Install cable trays using hangers and supports on 8 -foot centers, maximum.
F. Install cable trays to walls as the primary method of support where possible.
G. If support from the ceiling is the only alternative, use hangers and supports on 6 -foot centers, maximum.
H. Ensure that proper separation between duties as detailed in 3.1.
END OF SECTION 260533
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SECTION 260534 — ENCLOSURES
PART 1 - GENERAL
1.1 SCOPE OF WORK
A. This specification includes enclosures to house electrical controls, instruments, terminal blocks, and serve as junction boxes where shown on the Drawings.
1.2 RELATED SECTIONS
A. For Raceways and Boxes for Electrical Systems see Section 260533 "Raceways and Boxes for Electrical Systems".
1.3 SUBMITTALS
A. Products shall be submitted in accordance with Section 26000 "General Electrical Require- ments", and elsewhere in the Contract Documents, prior to installation.
1.4 MANUFACTURERS
A. Enclosures shall be manufactured by Hoffman, Rittal, or equal.
PART 2 - PRODUCTS
2.1 STEEL
A. Enclosures shall be fabricated from 14 -gauge steel with seams that are continuously welded. Doors shall have full length piano hinges with the door removable by pulling the hinge pin.
B. A rolled lip shall be provided around three sides of the door and around all sides of the enclosure opening. The gasket shall be attached with oil -resistant adhesive and held in place with steel retaining strips. Exterior hardware, such as clamps, screws, and hinge pins, shall be of stainless steel for outdoor installations. A hasp and staple shall be provided for padlocking. Each enclosure shall have a print pocket. All wires entering or leaving the enclosure shall terminate on terminal strips. All wires and terminals shall be clearly iden- tified as specified elsewhere in these specifications.
C. Finish shall be white enamel interior, light gray enamel, ANSI 61 exterior, over phospha- tized surfaces. Special finishes and colors shall be furnished for wet locations. Plans should be checked for special conditions.
2.2 NEMA RATING
A. Unless otherwise indicated on the Plans, enclosures shall be NEMA 12 for indoors, NEMA 4X for corrosive areas, and NEMA 4 for outdoor installations. NEMA 4X enclosures shall
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MESA LIFT STATION UPGRADE 260534-1
be stainless steel, unless noted otherwise. NEMA 4X enclosures shall also be used in wet, or wash down areas.
B. All enclosures used in classified areas shall be NEMA 7.
C. In Waste Water facilities, all enclosures in process areas shall be NEMA 4X stainless steel.
Enclosures in electrical rooms, meeting rooms, offices and shops shall be NEMA 12 unless otherwise specified.
D. Areas not specified in Water Treatment, Wastewater, or other water related facilities shall be approved by the engineer for NEMA type prior to installation.
2.3 FIBERGLASS
A. Enclosures shall be heavy-duty, compression molded, fiberglass reinforced polyester, high impact, heat resistant, NEMA 4X.
PART 3 - EXECUTION
3.1 INSTALLATION
A. Enclosures shall be installed as indicated on the Plans, and according to manufacturer's instructions.
B. Enclosures shall be properly grounded, and shall include ground straps connected to hinged doors and accessories.
END OF SECTION 260534
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SECTION 260536 - CABLE TRAYS FOR ELECTRICAL SYSTEMS
PART 1 - GENERAL
1.1 SUMMARY
A. Section Includes:
1. Ladder cable trays.
2. Single -rail cable trays.
3. Trough cable trays.
4. Fiberglass cable trays.
1.2 ACTION SUBMITTALS
A. Product Data: For each type of product.
B. Shop Drawings: For each type of cable tray.
C. Delegated -Design Submittal: For seismic restraints.
1. Seismic -Restraint Details: Signed and sealed by a qualified professional engineer, licensed in the state where Project is located, who is responsible for their preparation.
2. Design Calculations: Calculate requirements for selecting seismic restraints.
3. Detail fabrication, including anchorages and attachments to structure and to supported cable trays.
1.3 INFORMATIONAL SUBMITTALS
A. Seismic Qualification Certificates: For cable trays, accessories, and components, from manufacturer.
B. Field quality -control reports.
PART 2 - PRODUCTS
2.1 PERFORMANCE REQUIREMENTS
A. Delegated Design: Engage a qualified professional engineer, as defined in Section 014000 "Quality Requirements," to design cable tray supports and seismic bracing.
B. Seismic Performance: Cable trays and supports shall withstand the effects of earthquake motions determined according to ASCE/SEI 7.
1. Component Importance Factor: 1.0.
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2.2 GENERAL REQUIREMENTS FOR CABLE TRAYS
A. Cable Trays and Accessories: Identified as defined in NFPA 70 and marked for intended location, application, and grounding.
B. Sizes and Configurations: See the Cable Tray Schedule on Drawings for specific requirements for types, materials, sizes, and configurations.
C. Structural Performance: See articles on individual cable tray types for specific values for uniform load distribution, concentrated load, and load and safety factor parameters.
2.3 LADDER CABLE TRAYS
A. Description:
1. Configuration: Two I-beam side rails with transverse rungs welded to side rails.
2. Rung Spacing: 6 inches (150 mm)
3. Radius -Fitting Rung Spacing: 9 inches (225 mm) at center of tray's width.
4. Minimum Cable -Bearing Surface for Rungs: 7/8 -inch (22 -mm) width with radius edges.
5. No portion of the rungs shall protrude below the bottom plane of side rails.
6. Structural Performance of Each Rung: Capable of supporting a maximum cable load, with a safety factor of 1.5, plus a200 -lb (90 -kg) concentrated load, when tested according to NEMA VE 1.
7. Minimum Usable Load Depth: 6 inches (150 mm).
8. Straight Section Lengths: 10 feet (3 m) except where shorter lengths are required to facilitate tray assembly.
9. Width: 9 inches (225 mm) unless otherwise indicated on Drawings.
10. Fitting Minimum Radius: 12 inches (300 mm)
11. Class Designation: Comply with NEMA VE 1, Class 12B.
12. Splicing Assemblies: Bolted type using serrated flange locknuts.
13. Hardware and Fasteners: ASTM F 593 and ASTM F 594 stainless steel, Type 316.
14. Splice Plate Capacity: Splices located within support span shall not diminish rated loading capacity of cable tray.
2.4 SINGLE -RAIL CABLE TRAYS
A. Description:
1. Configuration: Center rail with extruded -aluminum rungs arranged symmetrically about the center rail.
2. Construction: Aluminum rungs mechanically connected to aluminum center rail in at least two places, with ends finished to protect installers and cables.
3. Rung Spacing: 6 inches (150 mm)
4. Radius -Fitting Rung Spacing: 9 inches (225 mm) at center of tray's width.
5. Straight Section Lengths: 10 feet (3 m) except where shorter lengths are required to facilitate tray assembly.
6. Width: 9 inches (225 mm) unless otherwise indicated on Drawings.
7. Support Point: Splice fittings shall be hanger support point.
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8. Support Spacing: Support each section at midpoint. Support wall -mounted sections a maximum of one -sixth of the section length from each end.
9. Loading Depth: 4 inches (100 mm)
10. Maximum Loads: 25 lb/ft. (37 kg/m)
11. Unbalanced Loads: Maintain cable tray rungs within six degrees of horizontal under all loading conditions.
12. Splicing Assemblies: Bolted type using serrated flange locknuts.
13. Splicing Assembly Capacity: Splices located within support span shall not diminish rated loading capacity of cable tray.
14. Hardware and Fasteners: ASTM F 593 and ASTM F 594 stainless steel, Type 316.
15. Splices and Connectors: Protect cables from edges of center rail and do not intrude into cable fill area.
2.5 TROUGH CABLE TRAYS
A. Description:
1. Configuration: Two longitudinal members (side rails) with a solid sheet over rungs exposed on the interior of the trough, or corrugated sheet with both edges welded to the side rails.
2. Rung Spacing: Rungs or corrugations shall be spaced a maximum of 6 inches (150 mm) o.c. and have a minimum flat bearing surface of 2 inches (50 mm).
3. Radius -Fitting Rung Spacing: 9 inches (225 mm) at center of tray's width.
4. Structural Performance: Capable of supporting a maximum cable load, with a safety factor of 1.5, plus a 200-1b (90 -kg) concentrated load, when tested according to NEMA VE 1.
5. Minimum Usable Load Depth: 4 inches (100 mm)
6. Straight Section Lengths: 10 feet (3 m) except where shorter lengths are required to facilitate tray assembly.
7. Width: 9 inches (225 mm) unless otherwise indicated on Drawings.
8. Fitting Minimum Radius: 12 inches (300 mm).
9. Class Designation: Comply with NEMA VE 1, Class 12B.
10. Splicing Assemblies: Bolted type using serrated flange locknuts.
11. Splicing Assembly Capacity: Splices located within support span shall not diminish rated loading capacity of cable tray.
12. Hardware and Fasteners: ASTM F 593 and ASTM F 594 stainless steel, Type 316.
2.6 FIBERGLASS CABLE TRAYS
A. Description:
1. Configuration: Two longitudinal members with rounded edges and smooth surfaces, complying with NEMA FG 1.
2. Materials: Straight section structural elements; side rails, rungs and splice plates shall be pultruded from glass -fiber -reinforced polyester resin, complying with NEMA FG 1 and UL 568.
3. Fasteners: Fiberglass -encapsulated, ASTM F 593 and ASTM F 594 stainless steel, Type 316. Design fasteners so that no metal is visible when fully assembled and
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tightened. Fastener encapsulation shall not be damaged when torqued to manufacturer's recommended value.
4. Minimum Usable Load Depth: 5 inches (125 mm) according to NEMA FG 1.
5. Straight Section Lengths: 10 feet (3 m)
6. Width: 9 inches (225 mm) unless otherwise indicated on Drawings.
7. Class Designation: Comply with NEMA VE 1, Class 12B.
8. Temperature Rating: Reduce the load rating of tray exposed to temperatures above 75 deg F (24 deg C) according to Table 4-3, "Working Loads," in NEMA FG 1.
9. Fitting Minimum Radius: 12 inches (300 mm)
10. Splicing Assemblies: Minimum four nuts and bolts per plate. Splice plates shall be furnished with straight sections and fittings.
11. Splicing Assembly Capacity: Splices located within support span shall not diminish rated loading capacity of cable tray.
2.7 MATERIALS AND FINISHES
A. Steel:
1. Straight Section and Fitting Side Rails and Rungs: Steel complies with the minimum mechanical properties of ASTM A 1011/A 1011M, SS, Grade 33.
2. Steel Tray Splice Plates: ASTM A 1011/A 1011M, HSLAS, Grade 50, Class 1.
3. Fasteners: Steel complies with the minimum mechanical properties of ASTM A 510/A 510M, Grade 1008.
4. Finish: Mill galvanized before fabrication.
a. Hardware: Galvanized, ASTM B 633.
5. Finish: Electrogalvanized before fabrication.
6. Finish: Hot -dip galvanized after fabrication.
a. Hardware: Stainless steel, Type 316, ASTM F 593 and ASTM F 594.
7. Finish: Epoxy -resin paint.
a. Hardware: Stainless steel, Type 316, ASTM F 593 and ASTM F 594.
8. Finish: Factory -standard primer, ready for field painting, with chromium -zinc -plated hardware according to ASTM F 1136.
9. Finish: Black oxide finish for support accessories and miscellaneous hardware according to ASTM D 769.
B. Aluminum:
1. Materials: Alloy 6063-T6 according to ANSI H35.1/H 35.1M for extruded components, and Alloy 5052-H32 according to ANSI H35.1/H 35.1M for fabricated parts.
2. Hardware: Stainless steel, Type 316, ASTM F 593 and ASTM F 594.
3. Hardware for Aluminum Cable Tray Used Outdoors: Stainless steel, Type 316, ASTM F 593 and ASTM F 594.
C. Stainless Steel:
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MESA LIFT STATION UPGRADE 260536-4
1. Materials: Low -carbon, passivated, stainless steel, Type 316L, ASTM F 593 and ASTM F 594.
2. Hardware for Stainless -Steel Cable Tray Used Outdoors: Stainless steel, Type 316, ASTM F 593 and ASTM F 594.
2.8 CABLE TRAY ACCESSORIES
A. Fittings: Tees, crosses, risers, elbows, and other fittings as indicated, of same materials and finishes as cable tray.
B. Covers: Solid type made of same materials and with same finishes as cable tray.
C. Barrier Strips: Same materials and finishes as for cable tray.
D. Cable tray supports and connectors, including bonding jumpers, as recommended by cable tray manufacturer.
2.9 WARNING SIGNS
A. Lettering: 1 -1/2 -inch- (40 -mm-) high, black letters on yellow background with legend "Warning! Not To Be Used as Walkway, Ladder, or Support for Ladders or Personnel." B. Comply with requirements for fasteners in Section 260553 "Identification for Electrical Systems."
2.10 SOURCE QUALITY CONTROL
A. Testing: Test and inspect cable trays according to NEMA FG 1.
PART 3 - EXECUTION
3.1 CABLE TRAY INSTALLATION
A. Install cable trays according to NEMA FG 1.
B. Install cable trays as a complete system, including fasteners, hold-down clips, support systems, barrier strips, adjustable horizontal and vertical splice plates, elbows, reducers, tees, crosses, cable dropouts, adapters, covers, and bonding.
C. Fasten cable tray supports to building structure.
D. Design fasteners and supports to carry cable tray, the cables, and a concentrated load of 200 lb (90 kg). Comply with requirements in Section 260529 "Hangers and Supports for Electrical Systems. "Comply with seismic -restraint details according to Section 260548 "Vibration and Seismic Controls for Electrical Systems."
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MESA LIFT STATION UPGRADE 260536-5
E. Install center -hung supports for single -rail trays designed for 60 versus 40 percent eccentric loading condition, with a safety factor of 3.
F. Make connections to equipment with flanged fittings fastened to cable trays and to equipment.
Support cable trays independent of fittings. Do not carry weight of cable trays on equipment enclosure.
G. Install expansion connectors where cable trays cross building expansion joints and in cable tray runs that exceed dimensions recommended in NEMA FG 1. Space connectors and set gaps according to applicable standard.
H. Seal penetrations through fire and smoke barriers. Comply with requirements in Section 078413 "Penetration Firestopping."
I. Install capped metal sleeves for future cables through firestop-sealed cable tray penetrations of fire and smoke barriers.
J. Install barriers to separate cables of different systems, such as power, communications, and data processing; or of different insulation levels, such as 600, 5000, and 15 000 V.
K. Install permanent covers, if used, after installing cable. Install cover clamps according to NEMA VE 2.
L. Install warning signs in visible locations on or near cable trays after cable tray installation.
3.2 CABLE TRAY GROUNDING
A. Ground cable trays according to NFPA 70 unless additional grounding is specified. Comply with requirements in Section 260526 "Grounding and Bonding for Electrical Systems." B. Cable trays with electrical power conductors shall be bonded together with splice plates listed for grounding purposes or with listed bonding jumpers.
C. Cable trays with single -conductor power conductors shall be bonded together with a grounding conductor run in the tray along with the power conductors and bonded to the tray at 72 -inch (1800 -mm) intervals. The grounding conductor shall be sized according to NFPA 70, Article 250.122, "Size of Equipment Grounding Conductors," and Article 392, "Cable Trays." D. Bond cable trays to power source for cables contained within with bonding conductors sized according to NFPA 70, Article 250.122, "Size of Equipment Grounding Conductors."
3.3 CABLE INSTALLATION
A. Install cables only when each cable tray run has been completed and inspected.
B. Fasten cables on horizontal runs with cable clamps or cable ties according to NEMA VE 2.
Tighten clamps only enough to secure the cable, without indenting the cable jacket.
C. Fasten cables on vertical runs to cable trays every 18 inches (450 mm).
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MESA LIFT STATION UPGRADE 260536-6
D. Fasten and support cables that pass from one cable tray to another or drop from cable trays to equipment enclosures. Fasten cables to the cable tray at the point of exit and support cables independent of the enclosure. The cable length between cable trays or between cable tray and enclosure shall be no more than 72 inches (1800 mm).
E. Tie MI cables down every 36 inches (900 mm) where required to provide a 2 -hour fire rating and every 72 inches (1800 mm) elsewhere.
F. In existing construction, remove inactive or dead cables from cable trays.
3.4 CONNECTIONS
A. Connect raceways to cable trays according to requirements in NEMA VE 2 and NEMA FG 1.
3.5 FIELD QUALITY CONTROL
A. Perform the following tests and inspections:
1. After installing cable trays and after electrical circuitry has been energized, survey for compliance with requirements.
2. Visually inspect cable insulation for damage. Correct sharp corners, protuberances in cable trays, vibrations, and thermal expansion and contraction conditions, which may cause or have caused damage.
3. Verify that the number, size, and voltage of cables in cable trays do not exceed that permitted by NFPA 70. Verify that communications or data-processing circuits are separated from power circuits by barriers or are installed in separate cable trays.
4. Verify that there are no intruding items such as pipes, hangers, or other equipment in the cable tray.
5. Remove dust deposits, industrial process materials, trash of any description, and any blockage of tray ventilation.
6. Visually inspect each cable tray joint and each ground connection for mechanical continuity. Check bolted connections between sections for corrosion. Clean and retorque in suspect areas.
7. Check for missing, incorrect, or damaged bolts, bolt heads, or nuts. When found, replace with specified hardware.
8. Perform visual and mechanical checks for adequacy of cable tray grounding; verify that all takeoff raceways are bonded to cable trays. Test entire cable tray system for continuity. Maximum allowable resistance is 1 ohm.
B. Prepare test and inspection reports.
3.6 PROTECTION
A. Protect installed cable trays and cables.
END OF SECTION 260536
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SECTION 260543 — UNDERGROUND DUCTS AND RACEWAYS FOR ELECTRICAL SYSTEMS PART 1 - GENERAL
1.1 SUMMARY
A. Section Includes:
1. Conduit, ducts, and duct accessories for concrete -encased duct banks.
2. Handholes and boxes.
3. Manholes.
B. Related Requirements:
1. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section.
2. Specification Section 260533 RACEWAYS AND BOXES FOR ELECTRICAL SYSTEMS apply to this Section.
1.2 ACTION SUBMITTALS
A. Product Data: For accessories for handholes and boxes.
B. Shop Drawings for Factory -Fabricated Handholes and Boxes: Include dimensioned plans, sections, elevations, and fabrication and installation details, including the following:
1. Duct entry provisions, including locations and duct sizes.
2. Cover design.
3. Grounding details.
4. Dimensioned locations of cable rack inserts, and pulling -in and lifting irons.
1.3 INFORMATIONAL SUBMITTALS
A. Field quality -control test reports.
1.4 QUALITY ASSURANCE
A. Comply with ANSI C2.
B. Comply with NFPA 70.
CITY OF BEAUMONT UNDERGROUND DUCTS AND RACEWAYS FOR ELECTRICAL MESA LIFT STATION UPGRADE 260543-1
PART 2 - PRODUCTS
2.1 CONDUIT
A. Rigid Steel Conduit: Galvanized. Comply with ANSI C80.1.
B. PVC Coated Rigid Steel Conduit. Refer to Specification Section 260533-2.3A for requirements.
C. RNC: NEMA TC 2, Type EPC-40-PVC, UL 651, with matching fittings by same manufacturer as the conduit, complying with NEMA TC 3 and UL 514B.
2.2 NONMETALLIC DUCTS AND DUCT ACCESSORIES
A. Manufacturers: Subject to compliance with requirements, provide products by one of the following:
1. ARNCO Corp.
2. Beck Manufacturing.
3. Cantex, Inc.
4. CertainTeed Corp.; Pipe & Plastics Group.
5. Condux International, Inc.
6. ElecSys, Inc.
7. Electri-Flex Company.
8. IPEX Inc.
9. Lamson & Sessions; Carlon Electrical Products.
10. Manhattan/CDT; a division of Cable Design Technologies.
11. Spiraduct/AFC Cable Systems, Inc.
B. Underground Plastic Utilities Duct: NEMA TC 2, Type EPC-40-PVC, UL 651, with matching fittings by the same manufacturer as the conduit, complying with NEMA TC 3 and UL 514B.
C. Duct Accessories:
1. Duct Separators: Factory -fabricated rigid PVC interlocking spacers, sized for type and sizes of ducts with which used, and selected to provide minimum duct spacings indicated while supporting ducts during concreting or backfilling.
2. Warning Tape: Underground -line warning tape specified in Section 260553 "Identification for Electrical Systems."
3. Concrete Warning Planks: Nominal 12 by 24 by 3 inches (300 by 600 by 76 mm) in size, manufactured from 6000 -psi (41-MPa) concrete.
a. Color: Red dye added to concrete during batching.
b. Mark each plank with "ELECTRIC" in 2 -inch- (50 -mm-) high, 3/8 -inch- (10 -mm-) deep letters.
2.3 HANDHOLES AND BOXES
A. Description: Comply with SCTE 77.
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1. Color: Gray or Green, depending on location.
2. Configuration: Units shall be designed for flush burial and have open bottom, unless otherwise indicated.
3. Cover: Weatherproof, secured by tamper -resistant locking devices and having structural load rating consistent with enclosure.
4. Cover Finish: Nonskid finish shall have a minimum coefficient of friction of 0.50.
5. Cover Legend: Molded lettering, "ELECTRIC."
6. Handholes 12 inches wide by 24 inches long and larger shall have inserts for cable racks and pulling -in irons installed before concrete is poured.
B. Fiberglass Handholes and Boxes with Polymer Concrete Frame and Cover: Sheet -molded, fiberglass -reinforced, polyester resin enclosure joined to polymer concrete top ring or frame.
1. Basis -of -Design Product: Subject to compliance with requirements, provide the product indicated on Drawings or a comparable product by one of the following:
a. Armorcast Products Company.
b. Carson Industries LLC.
c. Christy Concrete Products.
d. Synertech Moulded Products, Inc.; a division of Oldcastle Precast.
PART 3 - EXECUTION
3.1 EARTHWORK
A. Excavation and Backfill: Comply with Section 312000 "Earth Moving," but do not use heavy- duty, hydraulic -operated, compaction equipment.
B. Restore surface features at areas disturbed by excavation and reestablish original grades, unless otherwise indicated. Replace removed sod immediately after backfilling is completed.
C. Restore areas disturbed by trenching, storing of dirt, cable laying, and other work. Resto- revegetation and include necessary top -soiling, fertilizing, liming, seeding, sodding, sprigging, and mulching. Comply with Section 311000 "Finish Grading and Landscaping".
D. Cut and patch existing pavement in the path of underground ducts and utility structures.
3.2 DUCT INSTALLATION
A. Slope: Pitch ducts a minimum slope of 1:300 down toward handholes and away from buildings and equipment.
B. Curves and Bends: Use 5 -degree angle couplings for small changes in direction. Use manufactured long sweep bends with a minimum radius of 48 inches, both horizontally and vertically, at other locations, unless otherwise indicated.
C. Joints: Use solvent -cemented joints in ducts and fittings and make watertight according to manufacturer's written instructions. Stagger couplings so those of adjacent ducts do not lie in same plane.
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D. Duct Entrances to Concrete and Polymer Concrete Handholes: Use end bells, spaced approximately 10 inches (250 mm) o.c. for 5 -inch (125 -mm) ducts, and vary proportionately for other duct sizes.
1. Begin change from regular spacing to end -bell spacing 10 feet (3 m) from the end bell without reducing duct line slope and without forming a trap in the line.
2. Direct -Buried Duct Banks: Install an expansion and deflection fitting in each conduit in the area of disturbed earth adjacent to handhole.
3. Grout end bells into structure walls from both sides to provide watertight entrances.
E. Building Wall Penetrations: Make a transition from underground duct to rigid steel conduit at least 10 feet (3 m) outside the building wall without reducing duct line slope away from the building, and without forming a trap in the line. Use fittings manufactured for duct -to -conduit transition. Install conduit penetrations of building walls as specified in Section 260544 "Sleeves and Sleeve Seals for Electrical Raceways and Cabling."
F. Sealing: Provide temporary closure at terminations of ducts that have cables pulled. Seal spare ducts at terminations. Use sealing compound and plugs to withstand at least 15-psig (1.03-MPa) hydrostatic pressure.
G. Pulling Cord: Install 100-lbf- (445-N-) test nylon cord in ducts, including spares.
H. Concrete -Encased Ducts: Support ducts on duct separators.
1. Separator Installation: Space separators close enough to prevent sagging and deforming of ducts, with not less than 5 spacers per 20 feet (6 m) of duct. Secure separators to earth and to ducts to prevent floating during concreting. Stagger separators approximately 6 inches (150 mm) between tiers. Tie entire assembly together using fabric straps; do not use tie wires or reinforcing steel that may form conductive or magnetic loops around ducts or duct groups.
2. Concreting Sequence: Pour each run of envelope between terminations in one continuous operation.
a. Start at one end and finish at the other, allowing for expansion and contraction of ducts as their temperature changes during and after the pour. Use expansion fittings installed according to manufacturer's written recommendations or use other specific measures to prevent expansion -contraction damage.
b. If more than one pour is necessary, terminate each pour in a vertical plane and install 3/4 -inch (19 -mm) reinforcing rod dowels extending 18 inches (450 mm) into concrete on both sides of joint near corners of envelope.
3. Pouring Concrete: Spade concrete carefully during pours to prevent voids under and between conduits and at exterior surface of envelope. Do not allow a heavy mass of concrete to fall directly onto ducts. Use a plank to direct concrete down sides of bank assembly to trench bottom. Allow concrete to flow to center of bank and rise up in middle, uniformly filling all open spaces. Do not use power -driven agitating equipment unless specifically designed for duct -bank application.
4. Reinforcement: Reinforce concrete -encased duct banks where they cross disturbed earth and where indicated. Arrange reinforcing rods and ties without forming conductive or magnetic loops around ducts or duct groups.
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5. Forms: Use walls of trench to form side walls of duct bank where soil is self-supporting and concrete envelope can be poured without soil inclusions; otherwise, use forms.
6. Minimum Space between Ducts: 3 inches between ducts and exterior envelope wall, 3 inches between ducts for like services, and 6 inches between power and signal ducts.
7. Depth: Install top of duct bank at least 24 inches below finished grade in areas not subject to deliberate traffic, and at least 24 inches below finished grade in deliberate traffic paths for vehicles, unless otherwise indicated.
8. Stub -Ups: Use manufactured duct elbows for stub -ups at poles and equipment and at building entrances through the floor, unless otherwise indicated. Extend concrete encasement throughout the length of the elbow.
9. Stub -Ups: Use manufactured rigid steel conduit elbows for stub -ups at poles and equipment and at building entrances through the floor.
a. Couple steel conduits to ducts with adapters designed for this purpose and encase coupling with 3 inches of concrete.
b. Stub -Ups to Equipment: For equipment mounted on outdoor concrete bases, extend steel conduit horizontally a minimum of 60 inches from edge of base. Install insulated grounding bushings on terminations at equipment.
10. Warning Tape: Bury warning tape approximately 12 inches above all concrete -encased ducts and duct banks. Align tape parallel to and within 3 inches of the centerline of duct bank. Provide an additional warning tape for each 12 -inch increment of duct bank width over a nominal 18 inches. Space additional tapes 12 inches apart, horizontally.
I. Direct -Buried Duct Banks:
1. Support ducts on duct separators coordinated with duct size, duct spacing, and outdoor temperature.
2. Space separators close enough to prevent sagging and deforming of ducts, with not less than 5 spacers per 20 feet of duct. Secure separators to earth and to ducts to prevent displacement during backfill and yet permit linear duct movement due to expansion and contraction as temperature changes. Stagger spacers approximately 6 inches between tiers.
3. Excavate trench bottom to provide firm and uniform support for duct bank. Prepare trench bottoms as specified in Section 312000 "Earth Moving" for pipes less than 6 inches in nominal diameter.
4. Install backfill as specified in Section 312000 " Earth Moving"
5. After installing first tier of ducts, backfill and compact. Start at tie-in point and work toward end of duct run, leaving ducts at end of run free to move with expansion and contraction as temperature changes during this process. Repeat procedure after placing each tier. After placing last tier, hand -place backfill to 4 inches over ducts and hand tamp. Firmly tamp backfill around ducts to provide maximum supporting strength. Use hand tamper only.
After placing controlled backfill over final tier, make final duct connections at end of run and complete backfilling with normal compaction as specified in Section 312000 " Earth Moving"
6. Install ducts with a minimum of 3 inches between ducts for like services and 6 inches between power and signal ducts.
7. Depth: Install top of duct bank at least 24 inches below finished grade, unless otherwise indicated.
8. Set elevation of bottom of duct bank below the frost line.
CITY OF BEAUMONT UNDERGROUND DUCTS AND RACEWAYS FOR ELECTRICAL MESA LIFT STATION UPGRADE 260543-5
9. Install manufactured duct elbows for stub -ups at poles and equipment and at building entrances through the floor, unless otherwise indicated. Encase elbows for stub -up ducts throughout the length of the elbow.
10. Install manufactured rigid steel conduit elbows for stub -ups at poles and equipment and at building entrances through the floor.
a. Couple steel conduits to ducts with adapters designed for this purpose and encase coupling with 3 inches of concrete.
b. For equipment mounted on outdoor concrete bases, extend steel conduit horizontally a minimum of 60 inches from edge of equipment pad or foundation. Install insulated grounding bushings on terminations at equipment.
11. Warning Planks: Bury warning planks approximately 12 inches above direct -buried ducts and duct banks, placing them 24 inches o.c. Align planks along the width and along the centerline of duct bank. Provide an additional plank for each 12 -inch increment of duct bank width over a nominal 18 inches. Space additional planks 12 inches apart, horizontally.
3.3 INSTALLATION OF HANDHOLES AND BOXES OTHER THAN PRECAST CONCRETE A. Install handholes and boxes level and plumb and with orientation and depth coordinated with connecting ducts to minimize bends and deflections required for proper entrances. Use box extension if required to match depths of ducts, and seal joint between box and extension as recommended by the manufacturer.
B. Unless otherwise indicated, support units on a level bed of crushed stone or gravel, graded from 1/2 -inch (12.7 -mm) sieve to No. 4 (4.75 -mm) sieve and compacted to same density as adjacent undisturbed earth.
C. Elevation: In paved areas and trafficways, set so cover surface will be flush with finished grade.
Set covers of other handholes 1 inch (25 mm) above finished grade.
D. Install handholes and boxes with bottom below the frost line.
E. Install removable hardware, including pulling eyes, cable stanchions, cable arms, and insulators, as required for installation and support of cables and conductors and as indicated. Select arm lengths to be long enough to provide spare space for future cables, but short enough to preserve adequate working clearances in the enclosure.
F. Field -cut openings for ducts and conduits according to enclosure manufacturer's written instructions. Cut wall of enclosure with a tool designed for material to be cut. Size holes for terminating fittings to be used, and seal around penetrations after fittings are installed.
3.4 GROUNDING
A. Ground underground ducts and utility structures according to Section 260526 "Grounding and Bonding for Electrical Systems."
CITY OF BEAUMONT UNDERGROUND DUCTS AND RACEWAYS FOR ELECTRICAL MESA LIFT STATION UPGRADE 260543-6
3.5 FIELD QUALITY CONTROL
A. Perform the following field tests and inspections and prepare test reports:
1. Demonstrate capability and compliance with requirements on completion of installation of underground ducts and utility structures.
2. Pull aluminum or wood test mandrel through duct to prove joint integrity and test for out - of -round duct. Provide mandrel equal to 80 percent fill of duct. If obstructions are indicated, remove obstructions and retest.
3. Test handhole grounding to ensure electrical continuity of grounding and bonding connections. Measure and report ground resistance as specified in Section 260526 "Grounding and Bonding for Electrical Systems."
B. Correct deficiencies and retest as specified above to demonstrate compliance.
3.6 CLEANING
A. Pull leather -washer -type duct cleaner, with graduated washer sizes, through full length of ducts.
Follow with rubber duct swab for final cleaning and to assist in spreading lubricant throughout ducts.
END OF SECTION 260543
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SECTION 260544 - SLEEVES AND SLEEVE SEALS FOR ELECTRICAL RACEWAYS AND
CABLING
PART 1 - GENERAL
1.1 SUMMARY
A. Section Includes:
1. Sleeves for raceway and cable penetration of non -fire -rated construction walls and floors.
2. Sleeve -seal systems.
3. Sleeve -seal fittings.
4. Grout.
5. Silicone sealants.
B. Related Requirements:
1. Section 078413 "Penetration Firestopping" for penetration firestopping installed in fire - resistance -rated walls, horizontal assemblies, and smoke barriers, with and without penetrating items.
1.2 ACTION SUBMITTALS
A. Product Data: For each type of product.
B. LEED Submittals:
1. Product Data for Credit EQ 4.1: For sealants, documentation including printed statement of VOC content.
2. Laboratory Test Reports for Credit EQ 4: For sealants, documentation indicating that products comply with the testing and product requirements of the California Depat linent of Health Services' "Standard Practice for the Testing of Volatile Organic Emissions from Various Sources Using Small -Scale Environmental Chambers." PART 2 - PRODUCTS
2.1 SLEEVES
A. Wall Sleeves:
1. Steel Pipe Sleeves: ASTM A 53/A 53M, Type E, Grade B, Schedule 40, zinc coated, plain ends.
2. Cast -Iron Pipe Sleeves: Cast or fabricated "wall pipe," equivalent to ductile -iron pressure pipe, with plain ends and integral waterstop unless otherwise indicated.
CITY OF BEAUMONT SLEEVES FOR ELECTRICAL RACEWAYS AND CABLING MESA LIFT STATION UPGRADE 260544-1
B. Sleeves for Conduits Penetrating Non -Fire -Rated Gypsum Board Assemblies: Galvanized -steel sheet; 0.0239 -inch (0.6 -mm) minimum thickness; round tube closed with welded longitudinal joint, with tabs for screw -fastening the sleeve to the board.
C. Sleeves for Rectangular Openings:
1. Material: Galvanized sheet steel.
2. Minimum Metal Thickness:
a. For sleeve cross-section rectangle perimeter less than 50 inches (1270 mm) and with no side larger than 16 inches (400 mm), thickness shall be 0.052 inch (1.3 mm). b. For sleeve cross-section rectangle perimeter 50 inches (1270 mm) or more and one or more sides larger than 16 inches (400 mm), thickness shall be 0.138 inch (3.5 mm).
2.2 SLEEVE -SEAL SYSTEMS
A. Description: Modular sealing device, designed for field assembly, to fill annular space between sleeve and raceway or cable.
1. Manufacturers: Subject to compliance with requirements, provide products by the following:
2. Basis -of -Design Product: Subject to compliance with requirements, provide product indicated on Drawings or comparable product by one of the following:
a. Advance Products & Systems, Inc.
b. CALPICO, Inc.
c. Metraflex Company (The).
d. Pipeline Seal and Insulator, Inc.
e. Proco Products, Inc.
3. Sealing Elements: EPDM rubber interlocking links shaped to fit surface of pipe. Include type and number required for pipe material and size of pipe.
4. Pressure Plates: Stainless steel.
5. Connecting Bolts and Nuts: Stainless steel of length required to secure pressure plates to sealing elements.
2.3 SLEEVE -SEAL FITTINGS
A. Description: Manufactured plastic, sleeve -type, waterstop assembly made for embedding in concrete slab or wall. Unit shall have plastic or rubber waterstop collar with center opening to match piping OD.
1. Manufacturers: Subject to compliance with requirements, provide products by the following:
2. Basis -of -Design Product: Subject to compliance with requirements, provide product indicated on Drawings or comparable product by one of the following:
a. Presealed Systems.
CITY OF BEAUMONT SLEEVES FOR ELECTRICAL RACEWAYS AND CABLING MESA LIFT STATION UPGRADE 260544-2
2.4 GROUT
A. Description: Nonshrink; recommended for interior and exterior sealing openings in non -fire - rated walls or floors.
B. Standard: ASTM C 1107/C 1107M, Grade B, post -hardening and volume -adjusting, dry, hydraulic -cement grout.
C. Design Mix: 5000 -psi (34.5-MPa), 28 -day compressive strength.
D. Packaging: Premixed and factory packaged.
2.5 SILICONE SEALANTS
A. Silicone Sealants: Single -component, silicone -based, neutral -curing elastomeric sealants of grade indicated below.
1. Grade: Pourable (self -leveling) formulation for openings in floors and other horizontal surfaces that are not fire rated.
2. Sealant shall have VOC content of 100 g/L or less when calculated according to 40 CFR 59, Subpart D (EPA Method 24).
3. Sealant shall comply with the testing and product requirements of the California Department of Health Services' "Standard Practice for the Testing of Volatile Organic Emissions from Various Sources Using Small -Scale Environmental Chambers." B. Silicone Foams: Multicomponent, silicone -based liquid elastomers that, when mixed, expand and cure in place to produce a flexible, nonshrinking foam.
PART 3 - EXECUTION
3.1 SLEEVE INSTALLATION FOR NON -FIRE -RATED ELECTRICAL PENETRATIONS A. Comply with NECA 1.
B. Comply with NEMA VE 2 for cable tray and cable penetrations.
C. Sleeves for Conduits Penetrating Above -Grade Non -Fire -Rated Concrete and Masonry -Unit Floors and Walls:
1. Interior Penetrations of Non -Fire -Rated Walls and Floors:
a. Seal annular space between sleeve and raceway or cable, using joint sealant appropriate for size, depth, and location of joint. Comply with requirements in Section 079200 "Joint Sealants."
b. Seal space outside of sleeves with mortar or grout. Pack sealing material solidly between sleeve and wall so no voids remain. Tool exposed surfaces smooth; protect material while curing.
2. Use pipe sleeves unless penetration arrangement requires rectangular sleeved opening.
CITY OF BEAUMONT SLEEVES FOR ELECTRICAL RACEWAYS AND CABLING MESA LIFT STATION UPGRADE 260544-3
3. Size pipe sleeves to provide 1/4 -inch (6.4 -mm) annular clear space between sleeve and raceway or cable unless sleeve seal is to be installed or unless seismic criteria require different clearance.
4. Install sleeves for wall penetrations unless core -drilled holes or formed openings are used.
Install sleeves during erection of walls. Cut sleeves to length for mounting flush with both surfaces of walls. Deburr after cutting.
5. Install sleeves for floor penetrations. Extend sleeves installed in floors 2 inches (50 mm) above finished floor level. Install sleeves during erection of floors.
D. Sleeves for Conduits Penetrating Non -Fire -Rated Gypsum Board Assemblies:
1. Use circular metal sleeves unless penetration arrangement requires rectangular sleeved opening.
2. Seal space outside of sleeves with approved joint compound for gypsum board assemblies.
E. Roof -Penetration Sleeves: Seal penetration of individual raceways and cables with flexible boot - type flashing units applied in coordination with roofing work.
F. Aboveground, Exterior -Wall Penetrations: Seal penetrations using steel pipe sleeves and mechanical sleeve seals. Select sleeve size to allow for 1 -inch (25 -mm) annular clear space between pipe and sleeve for installing mechanical sleeve seals.
G. Underground, Exterior -Wall and Floor Penetrations: Install cast-iron pipe sleeves. Size sleeves to allow for 1 -inch (25 -mm) annular clear space between raceway or cable and sleeve for installing sleeve -seal system.
3.2 SLEEVE -SEAL -SYSTEM INSTALLATION
A. Install sleeve -seal systems in sleeves in exterior concrete walls and slabs -on -grade at raceway entries into building.
B. Install type and number of sealing elements recommended by manufacturer for raceway or cable material and size. Position raceway or cable in center of sleeve. Assemble mechanical sleeve seals and install in annular space between raceway or cable and sleeve. Tighten bolts against pressure plates that cause sealing elements to expand and make watertight seal.
3.3 SLEEVE -SEAL -FITTING INSTALLATION
A. Install sleeve -seal fittings in new walls and slabs as they are constructed.
B. Assemble fitting components of length to be flush with both surfaces of concrete slabs and walls.
Position waterstop flange to be centered in concrete slab or wall.
C. Secure nailing flanges to concrete forms.
D. Using grout, seal the space around outside of sleeve -seal fittings.
END OF SECTION 260544
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SECTION 260548 - VIBRATION AND SEISMIC CONTROLS FOR ELECTRICAL SYSTEMS PART 1 - GENERAL
1.1 SUMMARY
A. Section includes:
1. Channel support systems.
2. Restraint cables.
3. Hanger rod stiffeners.
4. Anchorage bushings and washers.
1.2 PERFORMANCE REQUIREMENTS
A. Seismic -Restraint Loading:
1. Site class, building code and Design Spectral Response Acceleration as defined on the Contract Drawings.
1.3 ACTION SUBMITTALS
A. Product Data: For the following:
1. Include rated load, rated deflection, and overload capacity for each vibration isolation device.
2. Illustrate and indicate style, material, strength, fastening provision, and finish for each type and size of seismic -restraint component used.
a. Tabulate types and sizes of seismic restraints, complete with report numbers and rated strength in tension and shear as evaluated by an agency acceptable to authorities having jurisdiction.
b. Annotate to indicate application of each product submitted and compliance with requirements.
3. Restrained -Isolation Devices: Include ratings for horizontal, vertical, and combined loads.
B. Delegated -Design Submittal: For seismic -restraint details indicated to comply with performance requirements and design criteria, including analysis data signed and sealed by the qualified professional engineer responsible for their preparation.
1. Design Calculations: Calculate static and dynamic loading due to equipment weight and operation, seismic forces required to select vibration isolators and seismic restraints. a. Coordinate design calculations with wind -load calculations required for equipment mounted outdoors. Comply with requirements in other electrical Sections for equipment mounted outdoors.
CITY OF BEAUMONT VIBRATION AND SEISMIC CONTROLS FOR ELECTRICAL SYSTEMS MESA LIFT STATION UPGRADE 260548-1
2. Indicate materials and dimensions and identify hardware, including attachment and anchorage devices.
3. Field -fabricated supports.
4. Seismic -Restraint Details:
a. Design Analysis: To support selection and arrangement of seismic restraints.
Include calculations of combined tensile and shear loads. b. Details: Indicate fabrication and arrangement. Detail attachments of restraints to the restrained items and to the structure. Show attachment locations, methods, and spacings. Identify components, list their strengths, and indicate directions and values of forces transmitted to the structure during seismic events. c. Preapproval and Evaluation Documentation: By an agency acceptable to authorities having jurisdiction, showing maximum ratings of restraint items and the basis for approval (tests or calculations).
1.4 INFORMATIONAL SUBMITTALS
A. Welding certificates.
B. Field quality -control test reports.
1.5 QUALITY ASSURANCE
A. Comply with seismic -restraint requirements in the IBC unless requirements in this Section are more stringent.
B. Welding Qualifications: Qualify procedures and personnel according to AWS D1.1/D1.1M, "Structural Welding Code - Steel."
C. Seismic -restraint devices shall have horizontal and vertical load testing and analysis and shall bear anchorage preapproval OPA number from OSHPD, preapproval by ICC-ES, or preapproval by another agency acceptable to authorities having jurisdiction, showing maximum seismic - restraint ratings. Ratings based on independent testing are preferred to ratings based on calculations. If preapproved ratings are not available, submittals based on independent testing are preferred. Calculations (including combining shear and tensile loads) to support seismic - restraint designs must be signed and sealed by a qualified professional engineer.
D. Comply with NFPA 70.
PART 2 - PRODUCTS
2.1 SEISMIC -RESTRAINT DEVICES
A. Manufacturers: Subject to compliance with requirements, manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following:
1. Amber/Booth Company, Inc.
2. California Dynamics Corporation.
CITY OF BEAUMONT VIBRATION AND SEISMIC CONTROLS FOR ELECTRICAL SYSTEMS MESA LIFT STATION UPGRADE 260548-2
3. Cooper B -Line, Inc.; a division of Cooper Industries.
4. Hilti Inc.
5. Loos & Co.; Seismic Earthquake Division.
6. Mason Industries.
7. TOLCO Incorporated; a brand of NIBCO INC.
8. Unistrut; Tyco International, Ltd.
B. General Requirements for Restraint Components: Rated strengths, features, and application requirements shall be as defined in reports by an agency acceptable to authorities having jurisdiction.
1. Structural Safety Factor: Allowable strength in tension, shear, and pullout force of components shall be at least four times the maximum seismic forces to which they will be subjected.
C. Channel Support System: MFMA-3, shop- or field -fabricated support assembly made of slotted steel channels with accessories for attachment to braced component at one end and to building structure at the other end and other matching components and with corrosion -resistant coating; and rated in tension, compression, and torsion forces.
D. Hanger Rod Stiffener: Reinforcing steel angle clamped to hanger rod. Do not weld stiffeners to rods.
E. Bushings for Floor -Mounted Equipment Anchor: Neoprene bushings designed for rigid equipment mountings, and matched to type and size of anchors and studs.
F. Bushing Assemblies for Wall -Mounted Equipment Anchorage: Assemblies of neoprene elements and steel sleeves designed for rigid equipment mountings, and matched to type and size of attachment devices.
G. Resilient Isolation Washers and Bushings: One-piece, molded, oil- and water-resistant neoprene, with a flat washer face.
H. Mechanical Anchor: Drilled -in and stud -wedge or female -wedge type in zinc -coated steel for interior applications and stainless steel for exterior applications. Select anchors with strength required for anchor and as tested according to ASTM E 488. Minimum length of eight times diameter.
I. Adhesive Anchor: Drilled -in and capsule anchor system containing polyvinyl or urethane methacrylate-based resin and accelerator, or injected polymer or hybrid mortar adhesive. Provide anchor bolts and hardware with zinc -coated steel for interior applications and stainless steel for exterior applications. Select anchor bolts with strength required for anchor and as tested according to ASTM E 488.
CITY OF BEAUMONT VIBRATION AND SEISMIC CONTROLS FOR ELECTRICAL SYSTEMS MESA LIFT STATION UPGRADE 260548-3
PART 3 - EXECUTION
3.1 APPLICATIONS
A. Multiple Raceways or Cables: Secure raceways and cables to trapeze member with clamps approved for application by an agency acceptable to authorities having jurisdiction.
B. Hanger Rod Stiffeners: Install hanger rod stiffeners where indicated or scheduled on Drawings to receive them and where required to prevent buckling of hanger rods due to seismic forces.
C. Strength of Support and Seismic -Restraint Assemblies: Where not indicated, select sizes of components so strength will be adequate to carry present and future static and seismic loads within specified loading limits.
3.2 SEISMIC -RESTRAINT DEVICE INSTALLATION
A. Equipment and Hanger Restraints:
1. Install restrained isolators on electrical equipment.
2. Install resilient, bolt -isolation washers on equipment anchor bolts where clearance between anchor and adjacent surface exceeds 0.125 inch (3.2 mm).
3. Install seismic -restraint devices using methods approved by an agency acceptable to authorities having jurisdiction providing required submittals for component.
B. Install bushing assemblies for mounting bolts for wall -mounted equipment, arranged to provide resilient media where equipment or equipment -mounting channels are attached to wall.
C. Attachment to Structure: If specific attachment is not indicated, anchor bracing to structure at flanges of beams, at upper truss chords of bar joists, or at concrete members.
D. Drilled -in Anchors:
1. Identify position of reinforcing steel and other embedded items prior to drilling holes for anchors. Do not damage existing reinforcing or embedded items during coring or drilling.
Notify the structural engineer if reinforcing steel or other embedded items are encountered during drilling. Locate and avoid prestressed tendons, electrical and telecommunications conduit, and gas lines.
2. Do not drill holes in concrete or masonry until concrete, mortar, or grout has achieved full design strength.
3. Wedge Anchors: Protect threads from damage during anchor installation. Heavy-duty sleeve anchors shall be installed with sleeve fully engaged in the structural element to which anchor is to be fastened.
4. Adhesive Anchors: Clean holes to remove loose material and drilling dust prior to installation of adhesive. Place adhesive in holes proceeding from the bottom of the hole and progressing toward the surface in such a manner as to avoid introduction of air pockets in the adhesive.
5. Set anchors to manufacturer's recommended torque, using a torque wrench.
6. Install zinc -coated steel anchors for interior and stainless -steel anchors for exterior applications.
CITY OF BEAUMONT VIBRATION AND SEISMIC CONTROLS FOR ELECTRICAL SYSTEMS MESA LIFT STATION UPGRADE 260548-4
3.3 ACCOMMODATION OF DIFFERENTIAL SEISMIC MOTION
A. Install flexible connections in runs of raceways, cables, wireways, cable trays, and busways where they cross seismic joints, where adjacent sections or branches are supported by different structural elements, and where they terminate with connection to equipment that is anchored to a different structural element from the one supporting them as they approach equipment.
3.4 FIELD QUALITY CONTROL
A. Tests and Inspections:
1. Obtain Engineer's approval before transmitting test loads to structure. Provide temporary load -spreading members.
2. Test at least four of each type and size of installed anchors and fasteners selected by Engineer.
3. Test to 90 percent of rated proof load of device.
4. If a device fails test, modify all installations of same type and retest until satisfactory results are achieved.
B. Remove and replace malfunctioning units and retest as specified above.
C. Prepare test and inspection reports.
3.5 ADJUSTING
A. Adjust isolators after isolated equipment is at operating weight.
B. Adjust limit stops on restrained spring isolators to mount equipment at normal operating height.
After equipment installation is complete, adjust limit stops so they are out of contact during normal operation.
C. Adjust active height of spring isolators.
D. Adjust restraints to permit free movement of equipment within normal mode of operation.
END OF SECTION 260548
CITY OF BEAUMONT VIBRATION AND SEISMIC CONTROLS FOR ELECTRICAL SYSTEMS MESA LIFT STATION UPGRADE 260548-5
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CITY OF BEAUMONT VIBRATION AND SEISMIC CONTROLS FOR ELECTRICAL SYSTEMS MESA LIFT STATION UPGRADE 260548-6
SECTION 260553 - IDENTIFICATION FOR ELECTRICAL SYSTEMS
PART 1 - GENERAL
1.1 SUMMARY
A. Section Includes:
1. Identification for raceways.
2. Identification of power and control cables.
3. Identification for conductors.
4. Underground -line warning tape.
5. Warning labels and signs.
6. Instruction signs.
7. Equipment identification labels.
8. Miscellaneous identification products.
1.2 ACTION SUBMITTALS
A. Product Data: For each electrical identification product indicated.
B. Samples of each color, lettering style and other graphic representation required for each identification material or system.
C. Table or list of equipment, panel and disconnect switch labels.
1.3 QUALITY ASSURANCE
A. Comply with ANSI A13.1.
B. Comply with NFPA 70.
C. Comply with 29 CFR 1910.144 and 29 CFR 1910.145.
D. Comply with ANSI Z535.4 for safety signs and labels.
E. Adhesive -attached labeling materials, including label stocks, laminating adhesives, and inks used by label printers, shall comply with UL 969.
PART 2 - PRODUCTS
2.1 POWER RACEWAY IDENTIFICATION MATERIALS
A. Comply with ANSI A13.1 for minimum size of letters for legend and for minimum length of color field for each raceway size.
CITY OF BEAUMONT IDENTIFICATION FOR ELECTRICAL SYSTEMS
MESA LIFT STATION UPGRADE 260553-1
B. Colors for Raceways Carrying Circuits at 600 V or Less:
1. Black letters on an orange field.
2. Legend: Indicate voltage and system or service type.
C. Self -Adhesive Vinyl Labels for Raceways Carrying Circuits at 600 V or Less: Preprinted, flexible label laminated with a clear, weather- and chemical -resistant coating and matching wraparound adhesive tape for securing ends of legend label.
D. Snap -Around Labels for Raceways Carrying Circuits at 600 V or Less: Slit, pretensioned, flexible, preprinted, color -coded acrylic sleeve, with diameter sized to suit diameter of raceway or cable it identifies and to stay in place by gripping action.
E. Snap -Around, Color -Coding Bands for Raceways Carrying Circuits at 600 V or Less: Slit, pretensioned, flexible, solid -colored acrylic sleeve, 2 inches long, with diameter sized to suit diameter of raceway or cable it identifies and to stay in place by gripping action.
F. Write -On Tags shall not be allowed.
2.2 ARMORED AND METAL -CLAD CABLE IDENTIFICATION MATERIALS A. Comply with ANSI A13.1 for minimum size of letters for legend and for minimum length of color field for each raceway and cable size.
B. Colors for Raceways Carrying Circuits at 600 V and Less:
1. Black letters on an orange field.
2. Legend: Indicate voltage and system or service type.
C. Self -Adhesive Vinyl Labels: Preprinted, flexible label laminated with a clear, weather- and chemical -resistant coating and matching wraparound adhesive tape for securing ends of legend label.
D. Self -Adhesive Vinyl Tape: Colored, heavy duty, waterproof, fade resistant; 2 inches wide; compounded for outdoor use.
2.3 POWER AND CONTROL CABLE IDENTIFICATION MATERIALS
A. Comply with ANSI A13.1 for minimum size of letters for legend and for minimum length of color field for each raceway and cable size.
B. Self -Adhesive Vinyl Labels: Preprinted, flexible label laminated with a clear, weather- and chemical -resistant coating and matching wraparound adhesive tape for securing ends of legend label. Heat shrink tubing, or sleeve type wire markers are also acceptable.
A. Write -On Tags shall not be allowed.
B. Snap -Around Labels: Slit, pretensioned, flexible, preprinted, color -coded acrylic sleeve, with diameter sized to suit diameter of raceway or cable it identifies and to stay in place by gripping action.
CITY OF BEAUMONT IDENTIFICATION FOR ELECTRICAL SYSTEMS
MESA LIFT STATION UPGRADE 260553-2
C. Snap -Around, Color -Coding Bands: Slit, pretensioned, flexible, solid -colored acrylic sleeve, 2 inches (50 mm) long, with diameter sized to suit diameter of raceway or cable it identifies and to stay in place by gripping action.
2.4 CONDUCTOR IDENTIFICATION MATERIALS
A. Color -Coding Conductor Tape: Colored, self-adhesive vinyl tape not less than 3 mils thick by 1 to 2 inches wide.
B. Self -Adhesive Vinyl Labels: Preprinted, flexible label laminated with a clear, weather- and chemical -resistant coating and matching wraparound adhesive tape for securing ends of legend label. Heat shrink tubing, or sleeve type wire markers are also acceptable.
C. Marker Tapes: Vinyl or vinyl -cloth, self-adhesive wraparound type, with circuit identification legend machine printed by thermal transfer or equivalent process.
D. Write -On Tags shall not be allowed.
2.5 FLOOR MARKING TAPE
A. 2 -inch -wide, 5 -mil pressure -sensitive vinyl tape, with black and white stripes and clear vinyl overlay.
2.6 UNDERGROUND -LINE WARNING TAPE
A. Tape:
1. Recommended by manufacturer for the method of installation and suitable to identify and locate underground electrical and communications utility lines.
2. Printing on tape shall be permanent and shall not be damaged by burial operations.
3. Tape material and ink shall be chemically inert, and not subject to degrading when exposed to acids, alkalis, and other destructive substances commonly found in soils.
B. Color and Printing:
1. Comply with ANSI Z535.1 through ANSI Z535.5.
2. Inscriptions for Red -Colored Tapes: ELECTRIC LINE, HIGH VOLTAGE.
3. Inscriptions for Orange -Colored Tapes: TELEPHONE CABLE, CATV CABLE, COMMUNICATIONS CABLE, OPTICAL FIBER CABLE.
C. Tag: Type I:
1. Pigmented polyolefin, bright -colored, compounded for direct -burial service.
2. Thickness: 4 mils.
3. Weight: 18.5 lb/1000 sq. ft.
4. 3 -Inch Tensile According to ASTM D 882: 30 lbf, and 2500 psi.
D. Tag: Type ID:
CITY OF BEAUMONT IDENTIFICATION FOR ELECTRICAL SYSTEMS
MESA LIFT STATION UPGRADE 260553-3
1. Detectable three -layer laminate, consisting of a printed pigmented polyolefin film, a solid aluminum -foil core, and a clear protective film that allows inspection of the continuity of the conductive core, bright -colored, compounded for direct -burial service.
2. Overall Thickness: 5 mils.
3. Foil Core Thickness: 0.35 mil.
4. Weight: 28 lb/1000 sq. ft.
5. 3 -Inch Tensile According to ASTM D 882: 70 lbf, and 4600 psi.
2.7 WARNING LABELS AND SIGNS
A. Comply with NFPA 70 and 29 CFR 1910.145.
B. Self -Adhesive Warning Labels: Factory -printed, multicolor, pressure -sensitive adhesive labels, configured for display on front cover, door, or other access to equipment unless otherwise indicated.
C. Baked -Enamel Warning Signs:
1. Preprinted aluminum signs, punched or drilled for fasteners, with colors, legend, and size required for application.
2. 1/4 -inch grommets in corners for mounting.
3. Nominal size, 7 by 10 inches.
D. Metal -Backed, Butyrate Warning Signs:
1. Weather -resistant, nonfading, preprinted, cellulose -acetate butyrate signs with 0.0396 -inch galvanized -steel backing; and with colors, legend, and size required for application.
2. 1/4 -inch grommets in corners for mounting.
3. Nominal size, 10 by 14 inches.
E. Warning label and sign shall include, but are not limited to, the following legends:
1. Multiple Power Source Warning: "DANGER - ELECTRICAL SHOCK HAZARD - EQUIPMENT HAS MULTIPLE POWER SOURCES."
2. Workspace Clearance Warning: "WARNING - OSHA REGULATION - AREA IN FRONT OF ELECTRICAL EQUIPMENT MUST BE KEPT CLEAR FOR 36 INCHES."
2.8 INSTRUCTION SIGNS
A. Engraved, laminated acrylic or melamine plastic, minimum 1/16 inch thick for signs up to 20 sq. inches and 1/8 inch thick for larger sizes.
1. Engraved legend with black letters on white face.
2. Punched or drilled for mechanical fasteners.
3. Framed with mitered acrylic molding and arranged for attachment at applicable equipment.
B. Adhesive Film Label: Machine printed, in black, by thermal transfer or equivalent process.
Minimum letter height shall be 3/8 inch.
CITY OF BEAUMONT IDENTIFICATION FOR ELECTRICAL SYSTEMS
MESA LIFT STATION UPGRADE 260553-4
C. Adhesive Film Label with Clear Protective Overlay: Machine printed, in black, by thermal transfer or equivalent process. Minimum letter height shall be 3/8 inch. Overlay shall provide a weatherproof and UV -resistant seal for label.
2.9 EQUIPMENT IDENTIFICATION LABELS
A. Adhesive Film Label with Clear Protective Overlay: Machine printed, in black, by thermal transfer or equivalent process. Minimum letter height shall be 3/8 inch. Overlay shall provide a weatherproof and UV -resistant seal for label.
B. Self -Adhesive, Engraved, Laminated Acrylic or Melamine Label: Adhesive backed, with white letters on a dark -gray background. Minimum letter height shall be 3/8 inch.
C. Stenciled Legend: In nonfading, waterproof, black ink or paint. Minimum letter height shall be 1 inch.
2.10 MISCELLANEOUS IDENTIFICATION PRODUCTS
A. Paint: Comply with requirements in painting Sections for paint materials and application requirements. Select paint system applicable for surface material and location (exterior or interior).
B. Fasteners for Labels and Signs: Self -tapping, stainless -steel screws or stainless -steel machine screws with nuts and flat and lock washers.
PART 3 - EXECUTION
3.1 CONDUCTOR LABELING SCHEME
A. All control and instrumentation conductors shall be labeled with a "To/From" labeling scheme.
Each conductor label shall have two lines of text. The first line of text shall indicate the enclosure and terminal where the wire is to terminate on the other end. The second line of text shall indicate the enclosure and terminal where the wire is to terminate on this end. The following example illustrates the "To/From" labeling scheme:
1. A wire is connected between a VFD and an LCP. The VFD equipment tag is VFD-100 and the LCP equipment tag is LCP-100. The connecting terminal at the VFD enclosure is terminal "5". The connecting terminal at the LCP is terminal "7". This wire would have the following labels:
a. The wire label at the VFD end:
Top Line: "LCP-100: 7"
Bottom Line: "VFD-100: 5"
b. The wire label at the LCP end:
Top Line: "VFD-100: 5"
Bottom Line: "LCP-100: 7"
CITY OF BEAUMONT IDENTIFICATION FOR ELECTRICAL SYSTEMS
MESA LIFT STATION UPGRADE 260553-5
3.2 INSTALLATION
A. Location: Install identification materials and devices at locations for most convenient viewing without interference with operation and maintenance of equipment.
B. Apply identification devices to surfaces that require finish after completing finish work.
C. Self -Adhesive Identification Products: Clean surfaces before application, using materials and methods recommended by manufacturer of identification device.
D. Attach signs and plastic labels that are not self-adhesive type with mechanical fasteners appropriate to the location and substrate.
E. System Identification Color -Coding Bands for Raceways and Cables: Each color -coding band shall completely encircle cable or conduit. Place adjacent bands of two-color markings in contact, side by side. Locate bands at changes in direction, at penetrations of walls and floors, at 50 -foot maximum intervals in straight runs, and at 25 -foot maximum intervals in congested areas.
F. Underground -Line Warning Tape: During backfilling of trenches install continuous underground -line warning tape directly above line at 6 to 8 inches below finished grade. Use multiple tapes where width of multiple lines installed in a common trench or concrete envelope exceeds 16 inches overall.
G. Painted Identification: Comply with requirements in painting Sections for surface preparation and paint application.
3.3 IDENTIFICATION SCHEDULE
A. Accessible Raceways and Metal -Clad Cables, 600 V or Less, for Service, Feeder, and Branch Circuits More Than 30A, and 120V to ground: Install labels at 10 -foot maximum intervals.
B. Accessible Raceways and Cables within Buildings: Identify the covers of each junction and pull box of the following systems with self-adhesive vinyl labels with the wiring system legend and system voltage. System legends shall be as follows:
1. Emergency Power.
2. Power.
3. UPS.
C. Power -Circuit Conductor Identification, 600 V or Less: For conductors in vaults, pull and junction boxes, manholes, and handholes, use color -coding conductor tape to identify the phase.
1. Color -Coding for Phase Identification, 600 V or Less: Use colors listed below for ungrounded service, feeder and branch -circuit conductors. a. Colors for 208/120-V Circuits:
1) Phase A: Black.
2) Phase B: Red.
3) Phase C: Blue.
CITY OF BEAUMONT IDENTIFICATION FOR ELECTRICAL SYSTEMS
MESA LIFT STATION UPGRADE 260553-6
b. Colors for 480/277-V Circuits:
1) Phase A: Brown.
2) Phase B: Orange.
3) Phase C: Yellow.
c. Field -Applied, Color -Coding Conductor Tape: Apply in half -lapped turns for a minimum distance of 6 inches from terminal points and in boxes where splices or taps are made. Apply last two turns of tape with no tension to prevent possible unwinding. Locate bands to avoid obscuring factory cable markings.
D. Install instructional sign including the color -code for grounded and ungrounded conductors using adhesive -film -type labels.
E. Conductors to Be Extended in the Future: Attach marker tape to conductors and list source.
F. Auxiliary Electrical Systems Conductor Identification: Identify field -installed alarm, control, and signal connections.
1. Identify conductors, cables, and terminals in enclosures and at junctions, terminals, and pull points. Identify by system and circuit designation.
2. Use system of marker tape designations that is uniform and consistent with system used by manufacturer for factory -installed connections.
3. Coordinate identification with Project Drawings, manufacturer's wiring diagrams, and the Operation and Maintenance Manual.
G. Locations of Underground Lines: Identify with underground -line warning tape for power, lighting, communication, and control wiring and optical fiber cable.
1. Limit use of underground -line warning tape to direct -buried cables.
2. Install underground -line warning tape for both direct -buried cables and cables in raceway.
H. Workspace Indication: Install floor marking tape to show working clearances in the direction of access to live parts. Workspace shall be as required by NFPA 70 and 29 CFR 1926.403 unless otherwise indicated. Do not install at flush -mounted panelboards and similar equipment in finished spaces.
I. Warning Labels for Indoor Cabinets, Boxes, and Enclosures for Power and Lighting: Self- adhesive warning labels.
1. Comply with 29 CFR 1910.145.
2. Identify system voltage with black letters on an orange background.
3. Apply to exterior of door, cover, or other access.
4. For equipment with multiple power or control sources, apply to door or cover of equipment including, but not limited to, the following:
a. Power transfer switches.
b. Controls with external control power connections.
CITY OF BEAUMONT IDENTIFICATION FOR ELECTRICAL SYSTEMS
MESA LIFT STATION UPGRADE 260553-7
J. Operating Instruction Signs: Install instruction signs to facilitate proper operation and maintenance of electrical systems and items to which they connect. Install instruction signs with approved legend where instructions are needed for system or equipment operation.
K. Emergency Operating Instruction Signs: Install instruction signs with white legend on a red background with minimum 3/8 -inch -high letters for emergency instructions at equipment used for power transfer.
L. Equipment Identification Labels: On each unit of equipment, install unique designation label that is consistent with wiring diagrams, schedules, and the Operation and Maintenance Manual.
Apply labels to disconnect switches and protection equipment, central or master units, control panels, control stations, terminal cabinets, and racks of each system. Systems include power, lighting, control, communication, signal, monitoring, and alarm systems unless equipment is provided with its own identification.
1. Labeling Instructions:
a. Indoor Equipment: Self-adhesive, engraved, laminated acrylic or melamine label.
Unless otherwise indicated, provide a single line of text with 1/2 -inch -high letters on 1 -1/2 -inch -high label; where two lines of text are required, use labels 2 inches high.
b. Outdoor Equipment: Engraved, laminated acrylic or melamine label. c. Elevated Components: Increase sizes of labels and letters to those appropriate for viewing from the floor.
d. Unless provided with self-adhesive means of attachment, fasten labels with appropriate mechanical fasteners that do not change the NEMA or NRTL rating of the enclosure.
END OF SECTION 260553
CITY OF BEAUMONT IDENTIFICATION FOR ELECTRICAL SYSTEMS
MESA LIFT STATION UPGRADE 260553-8
SECTION 260573 — ELECTRICAL TESTING WITH COORDINATION STUDY PART 1 — GENERAL
1.1 SCOPE
A. The contractor shall furnish short-circuit and protective device coordination studies as pre- pared by the electrical equipment manufacturer or an approved engineering firm.
B. The contractor shall furnish an Arc Flash Hazard Analysis Study per the requirements set forth in NFPA 70E. The arc flash hazard analysis shall be performed according to the IEEE 1583 equations that are presented in NFPA 70E-2004, Annex D.
C. The scope of the studies shall include all new distribution equipment supplied by the equip- ment Manufacturer under this contract as well as all existing distribution equipment at the customer facility.
D. The contractor shall perform electrical tests as described in Part 3 of this document.
1.2 REFERENCES
A. The following is a list of standards which may be referenced in this section:
1. American National Standards Institute (ANSI):
a. 450, Recommended Practice for Maintenance, Testing, and Replacement of Large Lead Storage Batteries for Generator Stations and Substations. b. C2, National Electric Safety Code.
c. C37.13, Standard for Low Voltage AC Power Circuit Breakers Used in Enclosures d. C37.20.1, Metal -Enclosed Low Voltage Power Circuit Breaker Switchgear. e. C37.20.2, Metal -Clad and Station -Type Cubicle Switchgear. f. C37.20.3, Metal -Enclosed Interrupter Switchgear.
g. C57.12.00, Standard General Requirements for Liquid -Immersed Distribution, Power and Regulating Transformers
h. C62.33, Standard Test Specifications for Varistor Surge Protective Devices.
2. American Society for Testing and Materials (ASTM):
a. D665, Standard Test Method for Rust Preventing Characteristics of Inhibited Min- eral Oil in the Presence of Water.
b. D877, Standard Test Method for Dielectric Breakdown Voltage of Insulating Liq- uids Using Disk Electrodes.
c. D923, Standard Test Method for Sampling Electrical Insulating Liquids. d. D924, Standard Test Methods for A -Class Characteristics and Relative Permittiv- ity (Dielectric Constant) of Electrical Insulating Liquids. e. D971, Standard Test Method for Interfacial Tension of 0.1 against Water by the Ring Method.
f. D974, Standard Test Method for Acid and Base Number by Color -Indicator Titra- tion.
CITY OF BEAUMONT ELECTRICAL TESTING WITH COORDINATION STUDY MESA LIFT STATION UPGRADE 260573-1
g. D1298, Standard Test Method for Density, Relative Density (Specific Gravity), or API Gravity of Crude Petroleum and Liquid Petroleum Products by Hydrometer Method.
h. D1500, Standard Test Method for ASTM Color of Petroleum Products. i. D1524, Standard Test Method for Visual Examination of Used Electrical Insulat- ing Oils of Petroleum Origin in the Field.
j. D1533, Standard Test Methods for Water in Insulating Liquids. k. D1816, Standard Test Method for Dielectric Breakdown Voltage on Insulating Oils of Petroleum Origin Using VDE Electrodes.
1. D2285, Standard Test Method for Interfacial Tension of Electrical Insulating Oils of Petroleum Origin against Water by the Drop -Weight Method.
3. Institute of Electrical and Electronics Engineers (IEEE):
a. 43, Recommended Practice for Testing Insulating Resistance of Rotating Machin- ery.
b. 48, Standard Test Procedures and Requirements for High -Voltage Alternating - Current Cable Terminators.
c. 81, Guide for Measuring Earth Resistivity, Ground Impedance, and Earth Surface Potentials of a Ground System.
d. 95, Recommended Practice for Insulation Testing of Large AC Rotating Machin- ery with High Direct Voltage.
e. 118, Standard Test Code for Resistance Measurement.
f. 141, Recommended Practice for Electric Power Distribution and Coordination of Industrial Power Systems.
g. 242, Recommended Practice for Protection and Coordination of Industrial and Commercial Power Systems
h. 399, Recommended Practice for Industrial and Commercial Power System Analy- sis
i. 400, Guide for Making High -Direct -Voltage Tests on Power Cable Systems in the Field.
j. 1015, Recommended Practice for Apply Low -Voltage Circuit Breakers Used in Industrial and Commercial Power Systems
k. 1584, Guide for Performing Arc -Flash Hazard Calculations
4. National Electrical Manufacturers Association (NEMA):
a. AB 4, Guideline for Inspection and Preventive Maintenance of Molded Case Cir- cuit Breakers Used in Commercial and Industrial Applications. b. PB 2, Deadfront Distribution Switchboards.
c. WC 7, Cross -Linked -Thermosetting -Polyethylene -Insulated Wire and Cable for the Transmission and Distribution of Electrical Energy. d. WC 8, Ethylene -Propylene -Rubber -Insulated Wire and Cable for the Transmission and Distribution of Electrical Energy.
5. International Electrical Testing Association (NETA): ATS, Acceptance Testing Spec- ifications for Electrical Power Distribution Equipment and Systems.
6. National Fire Protection Association (NFPA):
a. 70, National Electrical Code (NEC).
CITY OF BEAUMONT ELECTRICAL TESTING WITH COORDINATION STUDY MESA LIFT STATION UPGRADE 260573-2
b. 70E, Standard for Electrical Safety Requirements for Employee Workplaces.
1.3 SUBMITTALS
A. Analysis Studies Submittal: Submit prior to receiving final approval of the distribution equipment submittal and prior to release of equipment manufacturing. If formal comple- tion of the studies may cause delay in equipment manufacturing, approval may be obtained from the Engineer may be obtained for preliminary submittal of sufficient study data to ensure that the selection of device and characteristics will be satisfactory.
1. The results of the short-circuit, protective device coordination and arc flash hazard analysis studies shall be summarized in a final report and submitted to the Design En- gineer
2. The report shall include the following sections:
a. Executive Summary
b. Descriptions, purpose, basis and scope of the study
c. Tabulations of circuit breaker, fuse and other protective device ratings versus short circuit duties
d. Protective device time versus current coordination curves, tabulations of relay and circuit breaker trips unit settings, fuse selection
e. Fault current calculations including a definition of terms and guide for interpreta- tion of the computer printout\
f. Details of the incident energy and flash protection boundary calculations g. Recommendations for system improvements, where needed h. One -line diagram
3. Arc flash labels shall be provided in hard copy only
4. Sample copy of individual device test form.
5. Sample copy of individual system test form.
B. Administrative Submittals: Submit 30 days prior to performing inspections or tests:
1. Schedule for performing inspection and tests.
2. List of references to be used for each test.
3. Sample copy of equipment and materials inspection form(s).
4. Sample copy of individual device test form.
5. Sample copy of individual system test form.
C. Quality Control Submittals: Submit within 14 days after completion of test:
1. Test or inspection reports and certificates for each electrical item tested.
D. Contract Closeout Submittals:
1. Operation and Maintenance Data:
a. In accordance with references elsewhere in these specifications. b. After test of inspection reports and certificates have been reviewed by ENGINEER and returned, insert a copy of each in operation and maintenance manual.
1.4 QUALIFICATIONS
CITY OF BEAUMONT ELECTRICAL TESTING WITH COORDINATION STUDY MESA LIFT STATION UPGRADE 260573-3
A. The short-circuit, protective device coordination and arc flash hazard analysis studies shall be conducted under the supervision and approval of a Registered Professional Electrical Engineer skilled in performing and interpreting the power system studies.
B. The Engineer shall be a full-time employee of the equipment manufacturer or an approved engineering firm.
C. The Engineer shall have a minimum of five (5) years of experience in performing power system studies.
D. The Engineer shall submit references of at least ten actual short-circuit, protective device coordination and arc flash hazard analysis studies performed over the last five years.
1.5 QUALITY ASSURANCE
A. Test equipment shall have an operating accuracy equal to, or greater than, requirements established by NETA ATS.
B. Test instrument calibration shall be in accordance with NETA ATS.
1.6 SEQUENCING AND SCHEDULING
A. Perform short-circuit, protective device coordination and arc flash hazard analysis studies prior to final approval of distribution equipment submittal B. Perform inspection and electrical tests after equipment has been installed.
C. Perform tests with apparatus de -energized whenever feasible.
D. Inspection and electrical tests on energized equipment are to be:
1. Scheduled with OWNER prior to de-energization.
2. Minimized to avoid extended period of interruption to the operating plant equipment.
E. Notify OWNER at least 24 hours prior to performing tests on energized electrical equip- ment.
PART 2 — PRODUCTS
2.1 STUDIES
A. Contractor is to furnish short-circuit and protective device coordination studies as prepared by equipment manufacturer or an approved engineering firm.
B. The contractor shall furnish an Arc Flash Hazard Analysis Study per NFPA 70E Article 130.3 and Annex D.
2.2 DATA COLLECTION
A. Contractor shall furnish all data as required by the power system studies. The Engineer performing the short-circuit, protective device coordination and arc flash hazard analysis
CITY OF BEAUMONT ELECTRICAL TESTING WITH COORDINATION STUDY MESA LIFT STATION UPGRADE 260573-4
studies shall furnish the Contractor with a listing of required data immediately after award of the contract. The Contractor shall expedite collection of the data to assure com- pletion of the studies as required for final approval of the distribution equipment shop drawings and/or prior to the release of the equipment for manufacturing.
B. Source combination may include present and future motors and generators C. Load data utilized may include existing and proposed loads obtained from Contract Doc- uments provided by Owner or Contractor
2.3 SHORT-CIRCUIT AND PROTECTIVE DEVICE EVALUATION STUDY A. Use actual conductor impedances if known. If unknown, use typical conductor impedances based on IEEE Standard 141-1993.
B. Transformer design impedances shall be used when test impedances are not available.
C. Provide the following:
1. Calculation methods and assumptions
2. One -line diagram of the system being evaluated
3. Source impedance data, including utility system and motor fault contribution charac- teristics
4. Tabulations of calculated quantities
5. Results, conclusions, and recommendations.
D. Calculate short-circuit momentary and interrupting duties for a three-phase bolted fault at each:
1. Electric utility's supply termination point
2. Incoming switchgear
3. Unit substation primary and secondary terminals
4. Low voltage switchgear
5. Motor control centers
6. Standby generators and automatic transfer switches
7. Branch circuit panelboards
8. Other significant locations throughout the system
E. For grounded systems, provide a bolted line -to -ground fault current study for areas as de- fined for the three-phase bolted fault short-circuit study.
F. Protective Device Evaluation
1. Evaluate equipment and protective devices and compare to short circuit ratings
2. Adequacy of switchgear, motor control centers, and panelboard bus bars to withstand short-circuit stresses
3. Notify Owner in writing, of existing, circuit protective devices improperly rated for the calculated available fault current.
2.4 PROTECTIVE DEVICE COORDINATION STUDY
A. Proposed protective device coordination time -current curves (TCC) shall be displayed on log -log scale graphs
CITY OF BEAUMONT ELECTRICAL TESTING WITH COORDINATION STUDY MESA LIFT STATION UPGRADE 260573-5
B. Include on each TCC graph, a complete title and one -line diagram with legend identifying the specific portion of the system covered.
C. Terminate device characteristic curves at a point reflecting maximum symmetrical or asymmetrical fault current to which the device is exposed.
D. Identify the device associated with each curve by manufacturer type, function, and, if ap- plicable, tap, time delay, and instantaneous settings recommended.
E. Plot the following characteristics on the TCC graphs, where applicable:
1. Electric utility's overcurrent protective device
2. Medium voltage equipment overcurrent relays
3. Medium and low voltage fuses including manufacturer's minimum melt, total clearing, tolerance, and damage bands
4. Low voltage equipment circuit breaker trip devices, including manufacturer's toler- ance bands
5. Transformer full -load current, magnetizing inrush current, and ANSI through -fault protection curves
6. Conductor damage curves
7. Ground fault protective devices, as applicable
8. Pertinent motor starting characteristics and motor damage points, where applicable
9. Pertinent generator short-circuit decrement curve and generator damage point
10. The largest feeder circuit breaker in each motor control center and applicable panel - board
F. Provide adequate time margins between device characteristics such that selective operation is provided, while providing proper protection.
2.5 ARC FLASH HAZARD ANALYSIS
A. The arc flash hazard analysis shall be performed according to the IEEE 1584 equations that are presented in NFPA70E-2004, Annex D.
B. The flash protection boundary and the incident energy shall be calculated at all significant locations in the electrical distribution system (switchboards, switchgear, motor -control centers, panelboards, busway and splitters) where work could be performed on energized parts.
C. The Arc -Flash Hazard Analysis shall include all significant locations in 240 volt and 208 - volt systems fed from transformers equal to or greater than 125 kVA where work could be performed on energized parts.
D. Safe working distances shall be based upon the calculated arc flash boundary considering an incident energy of 1.2 cal/cm2.
E. When appropriate, the short circuit calculations and the clearing times of the phase over - current devices will be retrieved from the short-circuit and coordination study model.
Ground overcurrent relays should not be taken into consideration when determining the clearing time when performing incident energy calculations.
CITY OF BEAUMONT ELECTRICAL TESTING WITH COORDINATION STUDY MESA LIFT STATION UPGRADE 260573-6
F. The short-circuit calculations and the corresponding incident energy calculations for mul- tiple system scenarios must be compared and the greatest incident energy must be uniquely reported for each equipment location. Calculations must be performed to represent the maximum and minimum contributions of fault current magnitude for all normal and emer- gency operating conditions. The minimum calculation will assume that the utility contri- bution is at a minimum and will assume a minimum motor contribution (all motors off).
Conversely, the maximum calculation will assume a maximum contribution from the utility and will assume the maximum amount of motors to be operating. Calculations shall take into consideration the parallel operation of synchronous generators with the electric utility, where applicable.
G. The incident energy calculations must consider the accumulation of energy over time when performing arc flash calculations on buses with multiple sources. Iterative calculations must take into account the changing current contributions, as the sources are interrupted or decremented with time. Fault contribution from motors and generators should be decre- mented as follows:
1. Fault contribution from induction motors should not be considered beyond 3-5 cycles.
2. Fault contribution from synchronous motors and generators should be decayed to match the actual decrement of each as closely as possible (e.g. contributions from per- manent magnet generators will typically decay from 10 per unit to 3 per unit after 10 cycles).
H. For each equipment location with a separately enclosed main device (where there is ade- quate separation between the line side terminals of the main protective device and the work location), calculations for incident energy and flash protection boundary shall include both the line and load side of the main breaker.
I. When performing incident energy calculations on the line side of a main breaker (as re- quired per above), the line side and load side contributions must be included in the fault calculation.
J. Mis-coordination should be checked amongst all devices within the branch containing the immediate protective device upstream of the calculation location and the calculation should utilize the fastest device to compute the incident energy for the corresponding location.
K. Arc Flash calculations shall be based on actual overcurrent protective device clearing time.
Maximum clearing time will be capped at 2 seconds based on IEEE 1584-2002 section B.1.2. Where it is not physically possible to move outside of the flash protection boundary in less than 2 seconds during an arc flash event, a maximum clearing time based on the specific location shall be utilized.
2.6 REPORT SECTIONS
A. Input data shall include, but not be limited to the following:
1. Feeder input data including feeder type (cable or bus), size, length, number per phase, conduit type (magnetic or non-magnetic) and conductor material (copper or alumi- num).
2. Transformer input data, including winding connections, secondary neutral -ground con- nection, primary and secondary voltage ratings, kVA rating, impedance, % taps and phase shift.
3. Reactor data, including voltage rating, and impedance.
CITY OF BEAUMONT ELECTRICAL TESTING WITH COORDINATION STUDY MESA LIFT STATION UPGRADE 260573-7
4. Generation contribution data, (synchronous generators and Utility), including short- circuit reactance (X"d), rated MVA, rated voltage, three-phase and single line -ground contribution (for Utility sources) and X/R ratio.
5. Motor contribution data (induction motors and synchronous motors), including short- circuit reactance, rated horsepower or kVA, rated voltage, and X/R ratio.
B. Short -Circuit Output Data shall include, but not be limited to the following reports:
1. Low Voltage Fault Report shall include a section for three-phase and unbalanced fault calculations and shall show the following information for each applicable location:
a. Voltage
b. Calculated fault current magnitude and angle
c. Fault point X/R ratio
d. Equivalent impedance
2. Momentary Duty Report shall include a section for three-phase and unbalanced fault calculations and shall show the following information for each applicable location:
a. Voltage
b. Calculated symmetrical fault current magnitude and angle c. Fault point X/R ratio
d. Calculated asymmetrical fault currents
e. Equivalent impedance
3. Interrupting Duty Report shall include a section for three-phase and unbalanced fault calculations and shall show the following information for each applicable location:
a. Voltage
b. Calculated symmetrical fault current magnitude and angle c. Fault point X/R ratio
d. No AC Decrement (NACD) Ratio
e. Equivalent impedance
f. Multiplying factors for 2, 3, 5 and 8 cycle circuit breakers C. Recommended Protective Device Settings:
1. Phase and Ground Relays:
a. Current transformer ratio
b. Current setting
c. Time setting
d. Instantaneous setting
e. Recommendations on improved relaying systems, if applicable.
2. Circuit Breakers:
a. Adjustable pickups and time delays (long time, short time, ground) b. Adjustable time -current characteristic
c. Adjustable instantaneous pickup
d. Recommendations on improved trip systems, if applicable.
D. Incident energy and flash protection boundary calculations
1. Arcing fault magnitude
2. Protective device clearing time
3. Duration of arc
4. Arc flash boundary
5. Working distance
6. Incident energy
7. Hazard Risk Category
8. Recommendations for arc flash energy reduction
CITY OF BEAUMONT ELECTRICAL TESTING WITH COORDINATION STUDY MESA LIFT STATION UPGRADE 260573-8
PART 3 — EXECUTION
3.1 GENERAL
A. Tests specified in this section are to be performed in accordance with the requirements else- where in these specifications.
B. Coordination with local Utilities to obtain necessary information to perform the tests specified in this section is the responsibility of the Contractor. All costs incurred in obtaining required information shall be borne by the Contractor.
B. Tests and inspection shall establish that:
1. Electrical equipment is operational within industry and manufacturer's tolerances.
2. All trip units are adjusted to avoid erroneous tripping of circuit breakers.
2. Installation operates properly.
3. Equipment is suitable for energization.
4. Installation conforms to requirements of Contract Documents and NFPA 70, NFPA 70E, and ANSI C2.
C. Perform inspection and testing in accordance with NETA ATS, industry standards, and manufacturer's recommendations.
D. Adjust mechanisms and moving parts for free mechanical movement.
E. Adjust adjustable relays and sensors to correspond to operating conditions, or as recom- mended by manufacturer.
F. Verify nameplate data for conformance to Contract Documents.
G. Realign equipment not properly aligned and correct un-levelness.
H. Properly anchor electrical equipment found to be inadequately anchored.
I. Tighten accessible bolted connections, including wiring connections, with calibrated torque wrench to manufacturer's recommendations, or as otherwise specified.
J. Clean contaminated surfaces with cleaning solvents as recommended by manufacturer.
K. Provide proper lubrication of applicable moving parts.
L. Inform OWNER of working clearances not in accordance with NFPA 70.
M. Investigate and repair or replace:
1. Electrical items that fail tests.
2. Active components not operating in accordance with manufacturer's instructions.
3. Damaged electrical equipment.
N. Electrical Enclosures:
CITY OF BEAUMONT ELECTRICAL TESTING WITH COORDINATION STUDY MESA LIFT STATION UPGRADE 260573-9
1. Remove foreign material and moisture from enclosure interior.
2. Vacuum and wipe clean enclosure interior.
3. Remove corrosion found on metal surfaces.
4. Repair or replace, as determined by OWNER, door and panel sections having dented surfaces.
5. Repair or replace, as determined by OWNER, poor fitting doors and panel sections.
6. Repair or replace improperly operating latching, locking, or interlocking devices.
7. Replace missing or damaged hardware.
8. Finish:
a. Provide matching paint and touch up scratches and mars. b. If required due to extensive damage, as determined by OWNER, refinish the entire assembly.
O. Replace fuses and circuit breakers that do not conform to size and type required by the Contract Documents.
3.2 COORDINATION STUDY FIELD ADJUSTMENT
A. Adjust relay and protective device settings according to the recommended settings table provided by the coordination study.
B. Make minor modifications to equipment as required to accomplish conformance with short circuit and protective device coordination studies.
C. Notify Owner in writing of any required major equipment modifications.
3.3 ARC FLASH WARNING LABELS
A. The contractor of the Arc Flash Hazard Analysis shall provide a 3.5 in. x 5 in. thermal transfer type label of high adhesion polyester for each work location analyzed.
B. All labels will be based on recommended overcurrent device settings and will be provided after the results of the analysis have been presented to the owner and after any system changes, upgrades or modifications have been incorporated in the system.
C. The label shall include the following information, at a minimum:
1. Location designation
2. Nominal voltage
3. Flash protection boundary
4. Hazard risk category
5. Incident energy
6. Working distance
D. Labels shall be machine printed, with no field markings.
E. Arc flash labels shall be provided in the following manner and all labels shall be based on recommended overcurrent device settings.
1. For each 600, 480 and applicable 208 -volt panelboard, one arc flash label shall be pro- vided.
2. For each motor control center, one arc flash label shall be provided.
CITY OF BEAUMONT ELECTRICAL TESTING WITH COORDINATION STUDY MESA LIFT STATION UPGRADE 260573-10
3. For each low voltage switchboard, one arc flash label shall be provided.
4. For each switchgear, one flash label shall be provided.
5. For medium voltage switches one arc flash label shall be provided
3.4 LOW VOLTAGE CABLES, 600 VOLTS MAXIMUM
A. Visual and Mechanical Inspection:
1. Inspect Each Individual Exposed Power Cable No. 4 and Larger For:
a. Physical damage.
b. Proper connections in accordance with single -line diagram. c. Cable bends that do not conform with manufacturer's minimum allowable bending radius where applicable.
d. Color coding conformance with specifications.
e. Proper circuit identification.
2. Mechanical Connections For:
a. Proper lug type for conductor material.
b. Proper lug installation.
c. Bolt torque level in accordance with NETA ATS, Table 10.1, unless otherwise specified by manufacturer.
3. Shielded Instrumentation Cables For:
a. Proper Shield grounding.
b. Proper terminations.
c. Proper circuit identification.
4 Control Cables For:
a. Proper termination.
b. Proper circuit identification.
5. Cables Terminated Through Window Type CTs: Verify that neutrals and grounds are terminated for correct operation of protective devices.
B. Electrical Tests:
1. Insulation Resistance Tests:
a. Applied megohm-meter dc voltage in accordance with NETA ATS, Table 10.2. b. Phase -to -phase and phase -to -ground for 1 minute on each pole. c. Insulation resistance values equal to, or greater than ohm values established by manufacturer.
d. Provide test reports to Engineer and Owner that show where test measurements were taken and the results
2. Contact Resistance Tests:
a. Contact resistance in micro -ohms across each switch blade and fuse holder. b. Investigate deviation of 50% or more form adjacent poles or similar switches.
3.5 MOLDED CASE CIRCUIT BREAKERS
A. General: Inspection and testing limited to circuit breakers rated 400 amperes and larger.
B. Visual and Mechanical Inspection:
1. Proper mounting.
2. Proper conductor size.
CITY OF BEAUMONT ELECTRICAL TESTING WITH COORDINATION STUDY MESA LIFT STATION UPGRADE 260573-11
3. Feeder designation according to nameplate and one -line diagram.
4. Cracked casings.
5. Connection bolt torque level in accordance with NETA ATS, Table 10.1.
6. Operate frame size and trip setting with circuit breaker schedules or one -line diagram.
7. Compare frame size and trip setting with circuit breaker schedules or one -line diagram.
8. Verify that terminals are suitable for 75 degrees C rated insulated conductors.
C. Electrical Tests:
1. Insulation Resistance Tests:
a. Utilize 1,000 -volt dc megohm-meter for 480- and 600 -volt circuit breakers. b. Pole -to -pole and pole -to -ground with breaker contacts opened for 1 minute. c. Pole -to -pole and pole -to -ground with breaker contacts closed for 1 minute. d. Test values to comply with NETA ATS, Table 10.2.
2. Contact Resistance Tests:
a. Contact resistance in micro -ohms across each pole.
b. Investigate deviation of 50% or more from adjacent poles and similar breakers.
3. Trip Coordination Study:
a. Provide coordination study of all new and existing equipment in the facility. b. Adjust all circuit breaker settings per the coordination study.
3.6 INSTRUMENT TRANSFORMERS
A. Visual and Mechanical Inspection:
1. Visually Check Current, Potential, and Control Transformers for:
a. Cracked insulation.
b. Broken leads or defective wiring.
c. Proper connections
d. Adequate clearances between primary and secondary circuit wiring.
2. Verify Mechanically that:
a. Grounding and shorting connections have good contact. b. Withdrawal mechanism and grounding operation, when applicable, operate properly.
3. Insulation resistance measurement on instrument transformer shall not be less than that shown in NETA ATS, Table 7.1.1.
3.7 METERING
A. Visual and Mechanical Inspection:
1. Verify meter connections in accordance with appropriate diagrams.
2. Verify meter multipliers.
3. Verify that meter types and scales conform to Contract Documents.
4. Check calibration of meters at cardinal points.
5. Check calibration of electrical transducers.
3.8 GROUNDING SYSTEMS
A. Visual and Mechanical Inspection:
CITY OF BEAUMONT ELECTRICAL TESTING WITH COORDINATION STUDY MESA LIFT STATION UPGRADE 260573-12
1. Equipment and circuit grounds in motor control centers and panelboards assemblies for proper connection and tightness.
2. Ground bus connections in motor control centers and panelboards assemblies for proper termination and tightness.
3. Effective transformer core and equipment grounding.
4. Accessible connections to grounding electrodes for proper fit and tightness.
5. Accessible exothermic -weld grounding connections to verify that molds were fully filled, and proper bonding was obtained.
6. Test ground system using 3 -point fall of potential test equipment. Ground system must provide less than 5 ohms to ground resistance. Provide test reports to Engineer and Owner that show where test measurements were taken and the results. System must be tested at all ground rods, concrete encased electrodes, ground busses and service entrance locations.
3.9 AC INDUCTION MOTORS
A. General: Inspection and testing limited to motors rated 10 hp and larger.
B. Visual and Mechanical Inspection:
1. Proper electrical and grounding connections.
2. Shaft alignment.
3. Blockage of ventilating air passageways.
4. Operate Motor and Check for:
a. Excessive mechanical and electrical noise.
b. Overheating.
c. Correct rotation.
d. Check vibration detectors, resistance temperature detectors, or motor inherent pro- tectors for proper operation.
e. Excessive vibration.
5. Check operation of space heaters.
C. Electrical Tests:
1. Insulation Resistance Tests:
a. In accordance with IEEE 43 at test voltages established by NETA ATS, Table 10.2 for:
1) Motors above 200 hp for 10 -minute duration with resistances tabulated at 30 seconds, 1 minute, and 10 minutes.
2) Motors 200 hp and less for 1 -minute duration with resistances tabulated at 30 and 60 seconds.
b. Insulation resistance values equal to, or greater than, ohm values established by manufacturers.
2. Calculate polarization index ratios for motors above 200 hp. Investigate index ratios less than 1.5 for Class A insulation and 2.0 for Class B insulation.
3. Insulation resistance test on insulated bearings in accordance with manufacturer's in- structions.
4. Measure running current and voltage and evaluate relative to load conditions and nameplate full -load amperes.
CITY OF BEAUMONT ELECTRICAL TESTING WITH COORDINATION STUDY MESA LIFT STATION UPGRADE 260573-13
5. Provide test reports to Engineer and Owner that show where test measurements were taken and the results
3.10 LOW VOLTAGE MOTOR CONTROL
A. Visual and Mechanical Inspection:
1. Proper barrier and shutter installation and operation.
2. Proper operation of indicating and monitoring devices.
3. Proper overload protection for each motor.
4. Improper blockage of air-cooling passages.
5. Proper operation of draw out elements.
6. Integrity and contamination of us insulation system.
7. Check Door and Device Interlocking System By:
a. Closure attempt of device when door is in OFF or OPEN position. b. Opening attempt of door when device is in ON or CLOSED position.
8. Check Nameplates for Proper Identification Of:
a. Equipment title and tag number with latest one -line diagram. b. Pushbuttons.
c. Control switches.
d. Pilot lights.
e. Control relays.
f. Circuit breakers.
g. Indicating meters.
9. Verify that fuse and circuit breaker sizes and types conform to Contract Documents.
10. Verify that current and potential transformer ratios conform to Contract Documents.
11. Check Bus Connections for High Resistance by Low Resistance Ohmmeter and Cali- brated Torque Wrench Applied to Bolted Joints:
a. Ohm value to be zero.
b. Bolt torque level in accordance with NETA ATS, Table 10.1, unless otherwise specified by manufacturer.
12. Check Operation and Sequencing of Electrical and Mechanical Interlock Systems by:
a. Closure attempt for locked open devices.
b. Opening attempt for locked closed devices.
13. Verify performance of each control device and feature furnished as part of the motor control center.
14. Control Wiring:
a. Compare wiring to local and remote control, and protective devices with elemen- tary diagrams.
b. Check for proper conductor lacing and bundling.
c. Check for proper conductor identification.
d. Check for proper conductor lugs and connections.
15. Exercise active components.
16. Inspect Contactors For:
a. Correct mechanical operations.
b. Correct contact gap, wipe, alignment, and pressure.
c. Correct torque of all connections.
17. Compare overload heater rating with full -load current for proper size.
18. Compare fuse, motor protector, and circuit breaker with motor characteristics for proper size.
CITY OF BEAUMONT ELECTRICAL TESTING WITH COORDINATION STUDY MESA LIFT STATION UPGRADE 260573-14
19. Perform phasing check on double -ended motor control centers to ensure proper bus phasing from each source.
B. Electrical Tests:
1. Insulation Resistance Tests:
a. Applied megohm-meter dc voltage in accordance with NETA ATS, Table 10.2. b. Bus section phase -to -phase and phase -to -ground for 1 minute on each phase. c. Contactor phase -to -ground and across open contacts for 1 minute on each phase. d. Starter section phase -to -phase and phase -to -ground on each phase with starter con- tacts closed and protective devices open.
e. Test values to comply with NETA ATS, Table 10.2.
2. Current Injection through Overload Unit at 300% of Motor Full -Load Current and Monitor Trip Time:
a. Trip time in accordance with manufacturer's published data. b. Investigate values in excess of 120 seconds.
3. Control Wiring Tests:
a. Apply secondary voltage to control power and potential circuits. b. Check voltage levels at each point on terminal boards and each device terminal. c. Insulation resistance test at 1,000 volts dc on control wiring except that connected to solid state components.
1) Insulation resistance to be 1 megohm minimum.
4. Operational test by initiating control devices to affect proper operation.
5. Provide test reports to Engineer and Owner that show where test measurements were taken and the results
END OF SECTION 260573
CITY OF BEAUMONT ELECTRICAL TESTING WITH COORDINATION STUDY MESA LIFT STATION UPGRADE 260573-15
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CITY OF BEAUMONT ELECTRICAL TESTING WITH COORDINATION STUDY MESA LIFT STATION UPGRADE 260573-16
SECTION 262416 - PANELBOARDS
PART 1 - GENERAL
1.1 SCOPE OF WORK
A. This section covers electrical panelboards.
1.2 SUBMITTALS
A. Products shall be submitted in accordance with Section 26 00 00, and the Contract Documents, prior to installation.
B. Panel layout with alphanumeric designation, branch circuit breaker sizes and types, AIC rating, bus sizes, bus material and other characteristics.
1.3 QUALITY ASSURANCE
A. NEMA PB-1, Panelboards
B. NEC
C. UL67, Panelboards
PART 2 - PRODUCTS
2.1 PANELBOARDS
A. Dead -front panelboards, including lighting distribution and control panels, shall be furnished and installed as indicated on the Plans. Buses shall be tin-plated copper. If shown on the drawings as 4 wire, neutral shall be 100% rated. Mounting and type of enclosures shall be as indicated on the Plans. Where not indicated, indoor enclosures shall be NEMA 12 and outdoor enclosures shall be NEMA 4. The minimum interrupting capacity of any device shall be 22 KAIC unless otherwise indicated on the Plans.
B. All lighting panels shall have surge protection devices.
C. Protective devices shall be replaceable without disturbing adjacent units and shall be of the bolt -on type. Snap in protective devices will not be accepted. Wire connectors shall be suitable for wire sizes indicated. Branch circuits shall be numbered as indicated on the Plans, and a complete typed circuit schedule shall be furnished under a transparent cover and affixed to the inside of the panel access door. Phase busing shall be full height without reduction. Full size neutral and ground bars shall be included and shall have suitable lugs for each outgoing circuit requiring connection. Spaces for future protective devices provided in lighting panels shall be bused for the maximum device that can be fitted into them.
D. Panelboards shall be finished with a primer, rust resistant phosphate undercoat and two coats of oven baked enamel with finish ANSI grey. They shall be sized to provide a minimum of 4 inches of gutter space on all sides. Doors shall not uncover any live parts and shall be hinged
CITY OF BEAUMONT PANELBOARDS
MESA LIFT STATION UPGRADE 262416-1
and have latches that require no tool to operate. Panelboard doors shall be lockable. Lock and two keys shall be furnished.
E. Each panelboard shall have, on the outside of the door, a lamicoid nameplate with 3/4 -inch letters as specified elsewhere in these Contract Documents.
F. Panelboards shall be as manufactured by Square D, General Electric, Eaton / Cutler Hammer, or equal.
G. Panelboards shall be service entrance rated where required, and as shown on the Plans.
PART 3 - EXECUTION
3.1 INSTALLATION
A. Panelboards shall be installed as indicated on the plans and according to manufacturer's instructions.
B. Provide grounding per NEC, and Section 260526.
C. Contractor shall verify all NEC clearance requirements prior to installation.
END OF SECTION 262416
CITY OF BEAUMONT PANELBOARDS
MESA LIFT STATION UPGRADE 262416-2
SECTION 262419 - MOTOR -CONTROL CENTERS
PART 1 - GENERAL
1.1 SCOPE OF WORK
A. The Contractor shall furnish and install, ready to use, motor control centers for use as in- dicated on the Contract Drawings and specified herein.
B. Circuit breaker ratings, and modifications, shall be as indicated on the Contract Drawings.
C. MCP ratings, and modification, shall be as indicated on the Contract Drawings.
1.2 SUBMITTALS
A. The motor control centers shall meet the requirements of the latest edition of Standards for Industrial Control No. ICS published by the National Electrical Manufacturers Association.
The following minimum information and drawings shall be submitted for review:
1. Plan, front, side views and overall dimension of each motor control center.
2. Weight.
3. Internal wiring diagram of each plug-in unit.
4. Internal wiring diagram of the motor control centers.
5. External connection diagram showing the wiring to the external controls and devices associated with the motor control center.
6. One -line and schematic diagram for each motor control center.
7. Bill of material list and Manufacturer's Product Data.
8. Installation instructions including seismic installation.
9. Manufacturer's certification that the following items are capable of interrupting and/or withstanding the specified short circuit condition:
a. Bus bar bracing
b. Feeder tap units
c. Starter units
B. Product information shall be submitted in accordance with Section 26 00 00 "General Elec- trical Requirements", and elsewhere in the Contract Documents.
PART 2 - PRODUCTS
2.1 MOTOR CONTROL CENTERS (MCC)
A. The motor control center fabricator shall be the manufacturer of the major components therein, such as circuit breakers and starters. Engineered motor control centers shall be by the component and housing manufacturer. The manufacturer shall comply with equipment specifications contained elsewhere in these Contract Documents.
B. Each component, as well as the complete assembly, shall be constructed and tested in ac- cordance with latest NEMA Standards for Industrial Control. The type of construction of
CITY OF BEAUMONT MOTOR -CONTROL CENTERS
MESA LIFT STATION UPGRADE 262419-1
the control centers shall be NEMA Class II, Type B. Lifting eyes shall be provided on each section to facilitate handling.
C. Unit doors shall be mounted on the stationary structure and hinged on the side away from the vertical wireway. They shall be held closed with slotted thumbscrews.
D. Unit doors shall have positive action linkage with disconnect operating mechanism. Mech- anism shall be designed so that it can be locked in the OFF position with up to 3 padlocks.
When the handle is not padlocked, it shall be possible to open the door by releasing the door interlock with a small screwdriver. The control units shall be of the plug-in type.
When doors are closed, the operating mechanism shall clearly indicate the ON or OFF position of the disconnect, and the door interlock mechanism shall engage. The disconnect operating mechanism shall be designed against inadvertent operation when the door is open. Each plug-in unit door shall be provided with a nameplate, specified elsewhere herein, that indicates the circuit number and circuit name. The nameplate shall be attached to the door with stainless steel screws. Each motor starter door shall be provided with an externally operated manual reset pushbutton for the overload relay.
E. It shall be possible to install up to 6 NEMA size one units in one vertical section. Units shall be completely enclosed with sheet steel. A small wireway shall be provided inside the unit, so all wiring can be laid in place without removing barriers or plates. Each vertical section that holds the units shall be rigidly formed of minimum 12 gauge, cold -rolled sheet steel. The vertical front -of -board -construction shall be supplied with minimum 20 -inch depth.
F. Continuous horizontal wiring troughs shall be provided at both top and bottom of each section. These troughs shall line up to form a continuous wireway for the full length of the MCC. A large continuous, full -height vertical wiring trough shall be provided in the right side of each section.
G. All starter wiring, control, and power shall be terminated in terminal strips in this trough for size 2 and smaller starters. Size 3 and larger starters shall have control leads terminating on the terminal strips in the trough. Terminal strips shall be split -type to facilitate wiring connections without disconnecting factory or field conductors. Terminal strips shall be rated to accept conductor sizes as indicated on the Contract Drawings.
H. All bus bars shall be tin plated copper, and shall be of the ampacity indicated on the Con- tract Drawings. Unit bus bar stabs shall insure high contact pressure. The vertical bus bars shall be effectively isolated from accidental contact by plastic insulating medium.
I. Bus bar supports shall be of high impact strength non -carbonizing insulating material mounted on padded steel brackets and shall provide adequate dielectric strength and creep- age distance. The bus structure shall be capable of withstanding short circuit current in accordance with NEMA standards, and as indicated on the Contract Drawings.
J. Each section shall be equipped with horizontal ground bus that shall be continuous across the MCC.
K. The MCCs shall be supplied as indicated on the Contract Drawings, and as specified herein and in accordance with NEMA Standard Pub. IS 1.1, latest edition. The MCCs shall be enclosed in NEMA Type 1 gasketed industrial use enclosures, unless otherwise shown.
CITY OF BEAUMONT MOTOR -CONTROL CENTERS
MESA LIFT STATION UPGRADE 262419-2
NEMA 3R enclosures shall provide sufficient depth for air conditioning units to be mounted on the end of the structures. If the MCCs contain VFDs or Solid State Starters that require cooling, their respective sections shall be louvered top and bottom, and fans shall remove heat from within the sections.
L. All metal surfaces and structural parts shall be given a phosphatizing, or equal, treatment prior to painting. The control centers shall then be given a gun-metal gray undercoat which is equal to zinc chromate. The exterior of the enclosure shall be finished in standard ANSI Grey.
M. Spaces for future combination starters shall have all the hardware necessary so that a future plug-in control unit can be installed without having to modify the vertical sections. The number of spaces for future control units shall be as indicated on the Contract Drawings.
N. Devices, such as, but not limited to, starters, circuit breaker, relays, timers, conductors, shall conform to other sections of these Contract Documents.
O. Provide customer metering instruments, as indicated on the Contract Drawings. Unless otherwise indicated on the Contract Drawings, metering units shall be electronic, capable of displaying volts line -to -line and line -to -neutral, and amps per phase.
P. Each section shall be equipped with horizontal neutral bus that shall be continuous across the MCC if the MCC is designated as 277/480 volt 4 wire.
Q. MCCs for this project shall be an intelligent MCC assembly with smart starters and VFD's each with an Ethernet port and support for monitoring and control over the Ethernet/IP protocol. Due to the variance in methods for implementing smart starters and VFDs, the schematics shown in the Contract Drawings shall be used as a guide in developing the actual schematics based upon actual vendor information. Each intelligent MCC shall be equipped with Layer 2 managed switches powered by a redundant DC power supply sys- tem. The connection from the plant SCADA network to the MCC shall be from a single CAT6 connection. Provide a minimum of four spare copper Ethernet ports for future con- nections.
Q.
MCCs shall be as manufactured by Allen-Bradley, Eaton or Square D.
PART 3 - EXECUTION
3.1 GENERAL
A. The MCCs shall be erected in accordance with the recommendations of the manufacturer and with the details specified herein.
B. Cables larger than No. 6 AWG, which hang from their vertical connections, shall be sup- ported within 2 feet of the connection.
C. The motor overload relays shall be provided and sized based on the actual full load amperes of the motor connected to the starter.
CITY OF BEAUMONT MOTOR -CONTROL CENTERS
MESA LIFT STATION UPGRADE 262419-3
D. The motor circuit protectors shall be adjusted to the lowest settings that do not cause false tripping.
E. Motor control centers shall be installed for seismic requirements as required in division 260000 "General Electrical Requirements".
F. Motor Control Centers shall be provided in accordance with all applicable sections of di- vision 260000.
3.2 FIELD TESTS
A. MCCs shall be tested in accordance with Section 260000.
END OF SECTION 262419
CITY OF BEAUMONT MOTOR -CONTROL CENTERS
MESA LIFT STATION UPGRADE 262419-4
SECTION 262726 - WIRING DEVICES
PART 1 - GENERAL
1.1 SUMMARY
A. Section Includes:
1. Receptacles, receptacles with integral GFCI, and associated device plates.
2. Weather -resistant receptacles.
3. Snap switches and wall -box dimmers.
4. Solid-state fan speed controls.
5. Wall -switch and exterior occupancy sensors.
6. Communications outlets.
1.2 ADMINISTRATIVE REQUIREMENTS
A. Coordination:
1. Receptacles for Owner -Furnished Equipment: Match plug configurations.
1.3 ACTION SUBMITTALS
A. Product Data: For each type of product.
B. Shop Drawings: List of legends and description of materials and process used for premarking wall plates.
1.4 INFORMATIONAL SUBMITTALS
A. Field quality -control reports.
1.5 CLOSEOUT SUBMITTALS
A. Operation and maintenance data.
PART 2 - PRODUCTS
2.1 MANUFACTURERS
A. Manufacturers' Names: Shortened versions (shown in parentheses) of the following manufacturers' names are used in other Part 2 articles:
CITY OF BEAUMONT WIRING DEVICES
MESA LIFT STATION UPGRADE 262726-1
1. Appleton Electric Co. (Appleton).
2. Cooper Wiring Devices; Division of Cooper Industries, Inc. (Cooper).
3. Cooper Crouse -Hinds (Crouse -Hinds).
4. Hubbell Incorporated; Wiring Device-Kellems (Hubbell).
5. Killark.
6. Leviton Mfg. Company Inc. (Leviton).
7. Pass & Seymour/Legrand (Pass & Seymour).
B. Source Limitations: Obtain each type of wiring device and associated wall plate from single source from single manufacturer.
2.2 GENERAL WIRING -DEVICE REQUIREMENTS
A. Wiring Devices, Components, and Accessories: Listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended location and application.
B. Comply with NFPA 70.
C. Devices that are manufactured for use with modular plug-in connectors may be substituted under the following conditions:
1. Connectors shall comply with UL 2459 and shall be made with stranding building wire.
2. Devices shall comply with the requirements in this Section.
2.3 STRAIGHT -BLADE RECEPTACLES FOR UNCLASSIFIED AREAS
A. General Description
1. Convenience Receptacles, 125 V, 20 A
2. Comply with NEMA WD 1, NEMA WD 6 Configuration 5-20R, UL 498, and FS W -C- 596.
3. Straight blade, grounding type, specification grade.
4. Color: White unless Owner or Engineer specifies otherwise. Ivory for weather resistant receptacles. Yellow for corrosion resistant receptacles.
5. Provide weather resistant receptacles for damp and wet areas (including all process areas or areas that may be sprayed down).
6. Provide corrosion resistant receptacles for corrosive areas.
B. Products: Subject to compliance with requirements, provide the following:
1. Dry, non -corrosive locations:
a. Hubbell; HBL5361 (single), HBL5362 (duplex).
b. Or Approved Equal.
2. Damp or wet locations:
a. Hubbell; HBL5361WR (single), HBL5362WR (duplex).
b. Or Approved Equal.
3. Corrosive locations:
a. Hubbell; HBL53CM61 (single), HBL53CM62 (duplex).
b. Or Approved Equal.
CITY OF BEAUMONT WIRING DEVICES
MESA LIFT STATION UPGRADE 262726-2
2.4 RECEPTACLES FOR CLASSIFIED AREAS
A. General Description
1. Explosion proof, UL Listed for Class 1 Division I and lI Groups C & D
2. Rated for 125 V, 20 A
3. Corrosion Resistant with malleable iron mounting box.
4. "Dead -front" construction requiring plug to be inserted and rotated to activate receptacle.
5. Factory Sealed so that seal -offs are not required at the receptacle.
6. If receptacles are to have GFCI, this shall be achieved at the branch circuit overcurrent protective device (typically a lighting panel) in an unclassified space.
B. Products: Subject to compliance with requirements, provide the following:
1. Appleton U -Line Contender series.
2. Crouse -Hinds Arktite Series.
3. Or Approved Equal.
2.5 GFCI RECEPTACLES FOR UNCLASSIFIED AREAS
A. General Description:
1. Duplex GFCI Convenience Receptacles, 125 V, 20 A.
2. Straight blade, feed -through type.
3. Comply with NEMA WD 1, NEMA WD 6, UL 498, UL 943 Class A, and FS W -C-596.
4. Include indicator light that shows when the GFCI has malfunctioned and no longer provides proper GFCI protection.
5. Receptacles shall be tamper and weather resistant.
B. Products: Subject to compliance with requirements, provide the following:
1. Hubbell; GFR5362TR.
2. Or Approved Equal.
2.6 TOGGLE SWITCHES FOR UNCLASSIFIED AREAS
A. General Description:
1. Toggle Switches, 120/277 V, 20A
2. Comply with NEMA WD 1, UL 20, and FS W -S-896.
3. Toggle type, quiet action, specification grade with grounding terminal.
4. Back and side wired, silver alloy contacts.
5. Color: White unless Owner or Engineer specifies otherwise.
6. For corrosive or wet areas, provide a NEMA 4X watertight, dust -tight and corrosion resistant cover.
B. Switches:
1. Products: Subject to compliance with requirements, provide the following:
CITY OF BEAUMONT WIRING DEVICES
MESA LIFT STATION UPGRADE 262726-3
a. Switches, 120/277 V, 20 A:
1) Hubbell; HBL1221 (Single Pole); HBL1222 (Double Pole); HBL1223 (Three Way); HBL1224 (Four Way).
2) Or Approved Equal.
b. Illuminated Switches (illuminated when switch is "off":
1) Hubbell; HBL1221IL (Single Pole); HBL1223IL (Three Way). 2) Or Approved Equal.
c. Key -Operated Switches (with factory supplied key):
1) Hubbell; HBL 1221 L
2) Or Approved Equal.
2.7 TOGGLE SWITCHES FOR CLASSIFIED AREAS
A. General Description:
1. Explosion proof, UL Listed for Class 1 Division I and II Groups C & D
2. Rated for 125 V, 20 A
3. Corrosion Resistant with malleable iron body and cover.
4. Factory Sealed so that seal -offs are not required at the receptacle.
5. Front operated handle with stainless steel shaft.
6. With grounding screw.
B. Products: Subject to compliance with requirements, provide the following:
1. Appleton Contender series.
2. Crouse -Hinds EDS Series.
3. Or Approved Equal.
2.8 WALL -BOX DIMMERS
A. Dimmer Switches: Modular, full -wave, solid-state units with integral, quiet on -off switches, with audible frequency and EMURFI suppression filters.
B. Control: Continuously adjustable slider; with single -pole or three-way switching. Comply with UL 1472.
C. Incandescent Lamp Dimmers: 120 V; control shall follow square -law dimming curve. On -off switch positions shall bypass dimmer module.
1. 600 W; dimmers shall require no derating when ganged with other devices. Illuminated when "off." Load shall not exceed 80% of dimmer rating.
D. Fluorescent Lamp Dimmer Switches: Modular; compatible with dimmer ballasts; trim potentiometer to adjust low -end dimming; dimmer -ballast combination capable of consistent dimming with low end not greater than 20 percent of full brightness.
CITY OF BEAUMONT WIRING DEVICES
MESA LIFT STATION UPGRADE 262726-4
2.9 WALL PLATES
A. Single and combination types shall match corresponding wiring devices.
1. Plate -Securing Screws: Metal with head color to match plate finish except for stainless steel wall plates whose screws shall be stainless steel.
2. Material for Finished Office Spaces: Smooth, high -impact thermoplastic, color to match device color.
3. Material for Finished Spaces: Type 304 stainless steel.
4. Material for Unfinished Spaces: Type 304 stainless steel.
5. Material for Damp and corrosive Locations: Cast aluminum with spring -loaded lift cover, and listed and labeled for use in wet and damp locations.
B. Wet -Location, Weatherproof Cover Plates: NEMA 250, complying with Type 3R, weather - resistant, die-cast aluminum with lockable cover.
C. Weatherproof, While -In -Use Covers: Where receptacles are required to be weatherproof and physically protected while in use or idle or where shown on the drawings, weatherproof, while - in -use covers shall be used in lieu of other covers. The cover shall have the following features:
1. General Description:
a. Suitable style receptacle plate with a hinged cover. b. Cord port(s) capable of allowing an appropriate size electrical cord(s) to pass through when the cover is closed.
c. Latching mechanism to allow the enclosure to maintain weatherproof integrity. The latch shall be a tamper resistant (locking/security) style in areas where security is needed.
d. Sufficiently deep to allow full closure with plug(s) in use. e. UL listed per UL Standard 514C and conform to NEC Article 410.57 paragraphs a and b, Article 110.3 and Article 110.11.
f. Body materials shall be of a flame resistant, self -extinguishing, UV inhibiting, impact resistant, polycarbonate resin. Materials must meet UL Standard 94 HF 1. g. Mounting screws shall be stainless steel and of sufficient length to properly secure the device and ensure seal to mounting surface.
2. Products: Subject to compliance with requirements, provide the following:
a. Cooper; TP74 Series.
b. Or Approved Equal.
2.10 FINISHES
A. Device Color:
1. Wiring Devices Connected to Normal Power System: White unless Owner or Engineer specifies otherwise or otherwise indicated or required by NFPA 70 or device listing.
2. Wiring Devices Connected to UPS or Emergency Power System: Red.
3. TVSS Devices: Blue.
CITY OF BEAUMONT WIRING DEVICES
MESA LIFT STATION UPGRADE 262726-5
B. Wall Plate Color: For plastic covers, match device color.
PART 3 - EXECUTION
3.1 INSTALLATION
A. Comply with NECA 1, including mounting heights listed in that standard, unless otherwise indicated.
B. Coordination with Other Trades:
1. Protect installed devices and their boxes. Do not place wall finish materials over device boxes and do not cut holes for boxes with routers that are guided by riding against outside of boxes.
2. Keep outlet boxes free of plaster, drywall joint compound, mortar, cement, concrete, dust, paint, and other material that may contaminate the raceway system, conductors, and cables.
3. Install device boxes in brick or block walls so that the cover plate does not cross a joint unless the joint is troweled flush with the face of the wall.
4. Install wiring devices after all wall preparation, including painting, is complete.
C. Conductors:
1. Do not strip insulation from conductors until right before they are spliced or terminated on devices.
2. Strip insulation evenly around the conductor using tools designed for the purpose. Avoid scoring or nicking of solid wire or cutting strands from stranded wire.
3. The length of free conductors at outlets for devices shall meet provisions of NFPA 70, Article 300, without pigtails.
4. Existing Conductors:
a. Cut back and pigtail, or replace all damaged conductors. b. Straighten conductors that remain and remove corrosion and foreign matter. c. Pigtailing existing conductors is permitted, provided the outlet box is large enough.
D. Device Installation:
1. Wherever possible, wiring devices shall be recess mounted with switches, receptacles and wall plates flush with the wall or surface.
2. Replace devices that have been in temporary use during construction and that were installed before building finishing operations were complete.
3. Keep each wiring device in its package or otherwise protected until it is time to connect conductors.
4. Do not remove surface protection, such as plastic film and smudge covers, until the last possible moment.
5. Connect devices to branch circuits using pigtails that are not less than 6 inches in length.
6. When there is a choice, use side wiring with binding -head screw terminals. Wrap solid conductor tightly clockwise, two-thirds to three -fourths of the way around terminal screw.
7. Use a torque screwdriver when a torque is recommended or required by manufacturer.
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8. When conductors larger than No. 12 AWG are installed on 15- or 20-A circuits, splice No. 12 AWG pigtails for device connections.
9. Tighten unused terminal screws on the device.
10. When mounting into metal boxes, remove the fiber or plastic washers used to hold device - mounting screws in yokes, allowing metal -to -metal contact.
E. Receptacle Orientation:
1. Install ground pin of vertically mounted receptacles down, and on horizontally mounted receptacles to the left.
2. Where more than one receptacle is installed in a room, they shall be symmetrically arranged.
3. Set switches and receptacles plumb and vertical to the floor.
4. Set recess -mounted switches and receptacles flush with face of walls.
F. Device Plates: Do not use oversized or extra -deep plates. Repair wall finishes and remount outlet boxes when standard device plates do not fit flush or do not cover rough wall opening. Provide blank plates for empty boxes.
G. Dimmers:
1. Install dimmers within terms of their listing.
2. Verify that dimmers used for fan speed control are listed for that application.
3. Install unshared neutral conductors on line and load side of dimmers according to manufacturers' device listing conditions in the written instructions.
4. Do not connect dimmers to loads in excess of 80% of the rating of the dimmer.
H. Arrangement of Devices: Unless otherwise indicated, mount flush, with long dimension vertical and with grounding terminal of receptacles on top. Group adjacent switches under single, multigang wall plates.
I. Adjust locations of service poles to suit arrangement of partitions and furnishings.
3.2 GFCI RECEPTACLES
A. Install non -feed -through -type GFCI receptacles where protection of downstream receptacles is not required.
3.3 FIELD QUALITY CONTROL
A. Perform the following tests and inspections:
1. Test Instruments: Use instruments that comply with UL 1436.
2. Test Instrument for Convenience Receptacles: Digital wiring analyzer with digital readout or illuminated digital -display indicators of measurement.
B. Tests for Convenience Receptacles:
1. Line Voltage: Acceptable range is 105 to 132 V.
2. Percent Voltage Drop under 15-A Load: A value of 6 percent or higher is unacceptable.
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3. Ground Impedance: Values of up to 2 ohms are acceptable.
4. GFCI Trip: Test for tripping values specified in UL 1436 and UL 943.
5. Using the test plug, verify that the device and its outlet box are securely mounted.
6. Tests shall be diagnostic, indicating damaged conductors, high resistance at the circuit breaker, poor connections, inadequate fault current path, defective devices, or similar problems. Correct circuit conditions, remove malfunctioning units and replace with new ones, and retest as specified above.
C. Wiring device will be considered defective if it does not pass tests and inspections.
D. Prepare test and inspection reports.
END OF SECTION 262726
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SECTION 262923 - VARIABLE -FREQUENCY DRIVES
PART 1 - GENERAL
1.1 SUMMARY
A. Section includes separately enclosed, pre -assembled, combination VFDs, rated 600 V and less, for speed control of three-phase, squirrel -cage induction motors.
B. See Section 26 24 19 "Motor -Control Centers" for VFDs installed in motor -control centers.
1.2 DEFINITIONS
A. CE: Conformite Europeene (European Compliance).
B. CPT: Control power transformer.
C. EMI: Electromagnetic interference.
D. IGBT: Insulated -gate bipolar transistor.
E. LAN: Local area network.
F. LED: Light -emitting diode.
G. MCP: Motor -circuit protector.
H. NC: Normally closed.
I. NO: Normally open.
J. OCPD: Overcurrent protective device.
K. PCC: Point of Common Coupling
L. PID: Control action, proportional plus integral plus derivative.
M. PWM: Pulse -width modulated.
N. P&ID: Process & Instrumentation Diagram
O. RFI: Radio -frequency interference.
P. SCADA: Supervisory control and data acquisition.
Q. TDD: Total Demand Distortion
R. THD: Total Harmonic Distortion
S. VFD: Variable -frequency drive.
1.3 PERFORMANCE REQUIREMENTS
A. Seismic Performance: VFDs shall withstand the effects of earthquake motions determined according to ASCE/SEI 7.
1. The term "withstand" means "the unit will remain in place without separation of any parts from the device when subjected to the seismic forces specified and the unit will be fully operational after the seismic event."
1.4 ACTION SUBMITTALS
A. Product Data: For each type and rating of VFD indicated.
CITY OF BEAUMONT VARIABLE FREQUENCY MOTOR CONTROLLERS
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B. System Harmonics Analysis: For each VFD and for the distribution system as a whole.
C. Shop Drawings: For each VFD indicated. Include dimensioned plans, elevations, and sections; and conduit entry locations and sizes, mounting arrangements, and details, including required clearances and service space around equipment.
1. Show tabulations of installed devices, equipment features, and ratings.
2. Schematic and Connection Wiring Diagrams: For power, signal, communications, and control wiring.
1.5 INFORMATIONAL SUBMITTALS
A. Coordination Drawings: Floor plans, drawn to scale, showing dimensioned layout, required working clearances, and required area above and around VFDs. Show VFD layout and relationships between electrical components and adjacent structural and mechanical elements.
Show support locations, type of support, and weight on each support. Indicate field measurements.
B. Seismic Qualification Certificates: For VFDs, accessories, and components, from manufacturer.
1. Basis for Certification: Indicate whether withstand certification is based on actual test of assembled components or on calculation.
2. Dimensioned Outline Drawings of Equipment Unit: Identify center of gravity and locate and describe mounting and anchorage provisions.
3. Detailed description of equipment anchorage devices on which the certification is based, and their installation requirements.
C. Product certificates.
D. Source quality -control reports.
E. Field quality -control reports.
1.6 CLOSEOUT SUBMITTALS
A. Operation and maintenance data.
1.7 QUALITY ASSURANCE
A. Testing Agency Qualifications: Member company of NETA or an NRTL.
B. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended location and application.
C. Comply with NFPA 70.
D. IEEE Compliance: Fabricate and test VFD according to IEEE 344 to withstand seismic forces defined in Section 260548 "Vibration and Seismic Controls for Electrical Systems."
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1.8 WARRANTY
A. Special Warranty: Manufacturer's standard form in which manufacturer agrees to repair or replace VFDs that fail in materials or workmanship within specified warranty period.
1. Warranty Period: Five years from date of Substantial Completion.
PART 2 - PRODUCTS
2.1 MANUFACTURED UNITS
A. Manufacturers: Subject to compliance with requirements, provide products by one of the following:
1. Rockwell Automation, Inc.; Allen-Bradley PowerFlex 700 series drives.
2. Schneider Electric, Inc.; Altivar Process 630 series drives.
3. Eaton SVX/SPX9000 series drives.
B. General Requirements for VFDs: Comply with NEMA ICS 7, NEMA ICS 61800-2, and UL 508C.
C. Application: Constant torque and variable torque.
D. VFD Description: Variable -frequency power converter (rectifier, dc bus, and IGBT, PWM inverter) factory packaged in an enclosure, with integral disconnecting means and overcurrent and overload protection; listed and labeled by an NRTL as a complete unit; arranged to provide self-protection, protection, and variable -speed control of one or more three-phase induction motors by adjusting output voltage and frequency.
1. Units suitable for operation of NEMA MG 1, Design A and Design B motors as defined by NEMA MG 1, Section IV, Part 30, "Application Considerations for Constant Speed Motors Used on a Sinusoidal Bus with Harmonic Content and General Purpose Motors Used with Adjustable -Voltage or Adjustable -Frequency Controls or Both."
2. Units suitable for operation of inverter -duty motors as defined by NEMA MG 1, Section IV, Part 31, "Definite -Purpose Inverter -Fed Polyphase Motors."
3. Listed and labeled for integrated short-circuit current (withstand) rating by an NRTL acceptable to authorities having jurisdiction.
E. Design and Rating: Match load type, such as fans, blowers, and pumps; and type of connection used between motor and load such as direct or through a power -transmission connection.
F. Output Rating: Three-phase; 10 to 200 (60 as programmed default) Hz, programmable as voltage proportional to frequency throughout voltage range or with sensorless vector control; maximum voltage equals input voltage.
G. Unit Operating Requirements:
1. Input AC Voltage Tolerance: Plus 10 and minus 15 percent of VFD input voltage rating.
2. Input AC Voltage Unbalance: Not exceeding 5 percent.
3. Input Frequency Tolerance: Plus or minus 3 percent of VFD frequency rating.
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4. Minimum Efficiency: 97 percent at 60 Hz, full load.
5. Minimum Displacement Primary -Side Power Factor: 98 percent under any load or speed condition.
6. Minimum Short -Circuit Current (Withstand) Rating: Equal to the rating of the gear feeding the drive. If not listed, 65 kA.
7. Ambient Temperature Rating: Not less than 14 deg F (minus 10 deg C) and not exceeding 122 deg F (50 deg C). This is specifically the requirement for the VFD unit itself and not the overall panel assembly. The overall assembly shall meet the requirements of 260000-
1.4-A-8 which requires the overall assembly to operate at an ambient temperature of up to 104°F. Electrical equipment not rated for operation at that temperature shall be provided with air conditioning. The majority of the MCC's for the project are located indoors in air- conditioned rooms which satisfies this requirement. VFD assemblies shall have appropriately designed ventilation and or air conditioning so as to protect the internal components and to keep internal panel temperatures below the internal components' rated temperatures.
8. Ambient Storage Temperature Rating: Not less than minus 4 deg F (minus 20 deg C) and not exceeding 158 deg F (70 deg C)
9. Humidity Rating: Less than 95 percent (noncondensing).
10. Altitude Rating: Not exceeding 3300 feet without de -rating. Up to 9850 feet with de - rating.
11. Vibration Withstand: Comply with IEC 60068-2-6.
12. Overload Capability: VFD system shall be rated for continuous operation at a minimum of 110% of motor load full load amps (FLA) times the motor service factor. Variable torque inverters shall be capable of delivering 110% of continuous rating for a minimum of 60 seconds. Constant torque inverters shall be capable of delivering 150% of continuous rating for a minimum of 60 seconds.
13. Starting Torque: Minimum 100 percent of rated torque from 3 to 60 Hz.
14. Speed Regulation: Plus or minus 0.6 Hz.
15. Output Carrier Frequency: Selectable; 0.5 to 15 kHz.
16. Stop Modes: Programmable; includes fast, free -wheel, and dc injection braking.
H. Inverter Logic: Microprocessor based, VFD isolated from all power circuits.
I. Isolated Control Interface: Allows VFDs to follow remote -control electrical signal over a minimum 100:1 speed range.
J. Internal Adjustability Capabilities:
1. Minimum Speed: 5 to 25 percent of maximum rpm.
2. Maximum Speed: 80 to 100 percent of maximum rpm.
3. Acceleration: 0.1 to 999.9 seconds.
4. Deceleration: 0.1 to 999.9 seconds.
5. Current Limit: 30 to minimum of 150 percent of maximum rating.
K. Self -Protection and Reliability Features:
1. Input transient protection by means of surge suppressors to provide three-phase protection against damage from supply voltage surges 10 percent or more above nominal line voltage.
2. Loss of Input Signal Protection: Selectable response strategy, including speed default to a percent of the most recent speed, a preset speed, or stop; with alarm.
3. Under- and overvoltage trips.
CITY OF BEAUMONT VARIABLE FREQUENCY MOTOR CONTROLLERS
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4. Inverter overcurrent trips.
5. VFD and Motor Overload/Overtemperature Protection: Microprocessor -based thermal protection system for monitoring VFDs and motor thermal characteristics, and for providing VFD overtemperature and motor overload alarm and trip; settings selectable via the keypad; NRTL approved.
6. Critical frequency rejection, with three selectable, adjustable deadbands.
7. Instantaneous line -to -line and line -to -ground overcurrent trips.
8. Loss -of -phase protection.
9. Reverse -phase protection.
10. Short-circuit protection.
11. Motor overtemperature fault.
L. Automatic Reset/Restart: Attempt three restarts after drive fault or on return of power after an interruption and before shutting down for manual reset or fault correction; adjustable delay time between restart attempts.
M. Power -Interruption Protection: To prevent motor from re -energizing after a power interruption until motor has stopped, unless "Bidirectional Autospeed Search" feature is available and engaged.
N. Bidirectional Autospeed Search: Capable of starting VFD into rotating loads spinning in either direction and returning motor to set speed in proper direction, without causing damage to drive, motor, or load.
O. Torque Boost: Automatically varies starting and continuous torque to at least 1.5 times the minimum torque to ensure high -starting torque and increased torque at slow speeds.
P. Motor Temperature Compensation at Slow Speeds: Adjustable current fall -back based on output frequency for temperature protection of self -cooled, fan -ventilated motors at slow speeds.
Q.
Integral Input Disconnecting Means and OCPD: NEMA AB 1, thermal -magnetic circuit breaker with pad -lockable, door -mounted handle mechanism.
1. Disconnect Rating: Not less than 115 percent of VFD input current rating.
2. Disconnect Rating: Not less than 115 percent of NFPA 70 motor full -load current rating or VFD input current rating, whichever is larger.
2.2 CONTROLS AND INDICATION
A. Status Lights: Door -mounted LED indicators displaying the following conditions:
1. Power on.
2. Run.
3. VFD Fault.
4. All other lights as shown on the design drawings
B. Panel -Mounted Operator Station: Manufacturer's standard front -accessible, sealed keypad and plain -English language digital display; allows complete programming, program copying, operating, monitoring, and diagnostic capability.
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