W9127826RA009_SPECS_VOL3.pdf
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- W9127826RA009
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This is a Specifications document (Volume 3) for the construction of an aircraft maintenance hangar at CSL Comalapa, El Salvador. The project requires construction of a single bay hangar with a footprint of 2,800 square meters designed to accommodate and support maintenance operations for C-130 or P-8 aircraft. The facility must include administrative office space, material storage areas, tool storage spaces, and an additional parking apron to provide temporary aircraft parking for units awaiting maintenance and swing space for existing apron operations.
The specifications establish the technical and performance requirements for the hangar structure, mechanical systems, electrical systems, and associated infrastructure necessary to support large military aircraft maintenance activities. The project is being executed by the Department of the Army Corps of Engineers Engineering District Mobile and represents a military construction initiative to enhance maintenance capabilities at the El Salvador location. Contractors submitting proposals must comply with all detailed specifications contained within this volume to ensure the completed facility meets operational standards for C-130 and P-8 aircraft maintenance operations.
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VOLUME 3 OF 3
RFP NO: W9127826RA009
CADD NO: SHA21003
SPECIFICATIONS
FOR
DESIGN BUILD AND CONSTRUCT
OF
CSL AIRCRAFT MAINTENANCE HANGAR
CSL COMALAPA, EL SALVADOR
“GOOD ENGINEERING RESULTS IN A BETTER ENVIRONMENT”
U.S. ARMY ENGINEER DISTRICT, MOBILE
100 Canal Street
Mobile, Alabama 36602
“BUILDING STRONG®”
CSL AIRCRAFT MAINTENANCE HANGAR W9127826RA009
CSL COMALAPA, EL SALVADOR SHA21003
TABLE OF CONTENTS - PAGE 1
TABLE OF CONTENTS
VOLUME 1 OF 3
CHECKLIST FOR PREPARATION OF OFFERS (NOTICE TO BIDDERS)
BIDDING REQUIREMENTS
STANDARD FORM 1442 – SOLITICTATION, OFFER AND AWARD
BIDDING SCHEDULE
EXPLANATION OF BID ITEMS
SELF-PERFORMANCE AND LIMITATIONS ON SUBCONTRACTING
COMPLIANCE FORM
00 11 00 PROPOSAL SUBMISSION REQUIREMENTS
00 12 00 SELECTION PROCEDURES AND BASIS OF AWARD
00 21 00 INSTRUCTIONS
00 45 00 REPRESENTATIONS AND CERTIFICATIONS
00 70 00 CONDITIONS OF THE CONTRACT
00 72 00 GENERAL CONDITIONS
00 73 00 SUPPLEMENTARY CONDITIONS
SPECIAL CONTRACT REQUIREMENTS
FORM W-14
01 00 01 GENERAL CONTRACT REQUIREMENTS
GENERAL SPECIFICATIONS
DIVISION 01 - GENERAL REQUIREMENTS
01 00 00 ADDITIONAL SPECIAL CONTRACT REQUIREMENTS
PROJECT SIGNS, EP310-1-6A
DD FORM 1354
DD FORM 1354 CHECKLIST
01 32 01.00 10 PROJECT SCHEDULE
01 33 00 SUBMITTAL PROCEDURES
ATTACHMENT 01 33 00-1 SUBMITTAL REGISTER
FORM 4025
01 33 29 SUSTAINABILITY REQUIREMENTS AND REPORTING
01 35 26 GOVERNMENTAL SAFETY REQUIREMENTS
01 42 00 SOURCES FOR REFERENCE PUBLICATIONS
01 42 15 METRIC MEASUREMENTS
01 45 00 QUALITY CONTROL
SAM FORM 696
01 45 00.15 10 RESIDENT MANAGEMENT SYSTEM CONTRACTOR MODE (RMS CM)
01 45 35 SPECIAL INSPECTIONS
01 74 19 CONSTRUCTION AND DEMOLITION WASTE MANAGEMENT
01 78 23 OPERATION AND MAINTENANCE DATA
DIVISION 02 – EXISTING CONDITIONS
02 41 00 DEMOLITION
DIVISION 03 – CONCRETE
03 30 00 CAST-IN-PLACE CONCRETE
TABLE OF CONTENTS - PAGE 2
DIVISION 04 – MASONRY
04 20 00 UNIT MASONRY
DIVISION 05 – METALS
05 05 20 POST-INSTALLED CONCRETE AND MASONRY ANCHORS
05 05 23.16 STRUCTURAL WELDING
05 12 00 STRUCTURAL STEEL
05 21 00 STEEL JOINT FRAMING
05 30 00 STEEL DECKS
05 40 00 COLD-FORMED METAL FRAMING
05 50 13 MISCELLANEOUS METAL FABRICATIONS
DIVISION 06 – WOOD, PLASTICS, AND COMPOSITES
06 10 00 ROUGH CARPENTRY
VOLUME 2 OF 3
DIVISION 07 - THERMAL AND MOISTURE PROTECTION
07 11 13 BITUMINOUS DAMPROOFING
07 13 52 ELASTOMERIC SHEET WATERPROOFING
07 21 13 BOARD AND BLOCK INSULATION
07 42 13 METAL WALL PANELS
07 42 63 FABRICATED WALL PANEL ASSEMBLIES
07 60 00 FLASHING AND SHEET METAL
07 61 14.00 20 STEEL STANDING SEAM ROOFING
07 84 00 FIRESTOPPING
07 92 00 JOINT SEALANTS
DIVISION 08 – OPENINGS
08 11 13 STEEL DOORS AND FRAMES
08 14 00 WOOD DOORS
08 31 00 ACCESS DOORS AND PANELS
08 33 23 OVERHEAD COILING DOORS
08 34 16.10 HORIZONTAL ROLLING STEEL DOORS
08 51 13 ALUMINUM WINDOWS
08 71 00 DOOR HARDWARE
08 81 00 GLAZING
08 91 00 METAL WALL AND DOOR LOUVERS
DIVISION 09 – FINISHES
09 06 00 SCHEDULES FOR FINISHES
09 22 00 SUPPORTS FOR PLASTER AND GYPSUM BOARD
09 29 00 GYPSUM BOARD
09 30 10 CERAMIC, QUARRY, AND GLASS TILING
09 51 00 ACOUSTICAL CEILINGS
09 67 23.16 FUEL RESISTIVE RESINOUS FLOORING, 5-COAT SYSTEM
09 90 00 PAINTS AND COATINGS
09 97 13.27 HIGH PERFORMANCE COATING FOR STEEL STRUCTURES
09 97 13.27 01 HIGH PERFORMANCE COATING FOR STEEL STRUCTURES – FUEL PIPING
ONLY
TABLE OF CONTENTS - PAGE 3
DIVISION 10 – SPECIALTIES
10 14 00.20 INTERIOR SIGNAGE
10 28 13 TOILET ACCESSORIES
10 44 16 FIRE EXTINGUISHERS
DIVISION 13 – SPECIAL CONSTRUCTION
13 48 73 SEISMIC CONTROL FOR NONSTRUCTURAL COMPONENTS
DIVISION 21 – FIRE SUPPRESSION
21 13 13 WET PIPE SPRINKLER SYSTEM, FIRE PROTECTION
21 13 25 FLAME DETECTION SYSTEM
21 30 00 FIRE PUMPS
DIVISION 22 – PLUMBING
22 00 00 PLUMBING, GENERAL PURPOSE
DIVISION 23 – HEATING, VENTILATING, AND AIR CONDITIONING (HVAC)
23 03 00.00 20 BASIC MECHANICAL MATERIALS AND METHODS
23 05 48.19 SEISMIC BRACING FOR MECHANICAL SYSTEMS
23 05 93 TESTING, ADJUSTING, AND BALANCING FOR HVAC
23 07 00 THERMAL INSULATION FOR MECHANICAL SYSTEMS
23 23 00 REFRIGERANT PIPING
23 30 00 HVAC AIR DISTRIBUTION
23 81 00 DECENTRALIZED UNITARY HVAC EQUIPMENT
DIVISION 25 – INTEGRATED AUTOMATION
25 05 11.01 CYBERSECURITY FOR HVAC/MECHANICAL FACILITY-RELATED CONTROL
SYSTEMS – LOW IMPACT
25 05 11.02 CYBERSECURITY FOR ELECTRICAL/LIGHTING FACILITY-RELATED
CONTROL SYSTEMS – LOW IMPACT
VOLUME 3 OF 3
DIVISION 26 – ELECTRICAL
26 08 00 APPARATUS INSPECTION AND TESTING
26 12 19 PAD-MOUNTED, LIQUID-FILLED, MEDIUM-VOLTAGE TRANSFORMERS
26 20 00 INTERIOR DISTRIBUTION SYSTEM
26 32 15 ENGINE-GENERATOR SET STATIONARY 15-2500 KW, WITH
AUXILIARIES
26 36 23 AUTOMATIC TRANSFER SWITCHES AND BY-PASS/ISOLATION SWITCH
26 41 00 LIGHTNING PROTECTION SYSTEM
26 51 00 INTERIOR LIGHTING
DIVISION 27 – COMMUNICATIONS
27 10 00 BUILDING TELECOMMUNICATIONS CABLING SYSTEM
DIVISION 28 – ELECTRONIC SAFETY AND SECURITY
28 31 70 INTERIOR FIRE ALARM SYSTEM, ADDRESSABLE
TABLE OF CONTENTS - PAGE 4
DIVISION 31 – EARTHWORK
31 00 00 EARTHWORK
31 11 00 CLEARING AND GRUBBING
31 31 16.13 CHEMICAL TERMITE CONTROL
DIVISION 32 – EXTERIOR IMPROVEMENTS
32 01 11.51 PAINT REMOVAL FROM AIRFIELD PAVEMENTS
32 01 19.61 SEALING OF JOINTS IN RIGID PAVEMENT
32 05 33 LANDSCAPE ESTABLISHMENT
32 11 20 BASE COURSE FOR RIGID AND SELECT-MATERIAL FOR FLEXIBLE
PAVING
32 11 23 GRADED CRUSHED AGGREGATE BASE COURSE FOR FLEXIBLE PAVING
32 12 13 BITUMINOUS PRIME COATS
32 12 16.16 ROAD-MIX ASPHALT PAVING
32 13 13.06 PORTLAND CEMENT CONCRETE PAVEMENT FOR ROADS AND SITE
FACILITIES
32 13 14.13 CONCRETE PAVING FOR AIRFIELDS AND OTHER HEAVY DUTY
PAVEMENTS
32 13 73.19 COMPRESSION CONCRETE PAVING JOINT SEALANT
32 16 19 CONCRETE CURBS, GUTTERS AND SIDEWALKS
32 17 23.19 AIRFIELD PAVEMENT MARKINGS
32 92 23 SODDING
DIVISION 33 – UTILITIES
33 01 50.31 LEAK DETECTION FOR FUELING SYSTEMS
33 11 00 WATER UTILITY DISTRIBUTION PIPING
33 30 00 SANITARY SEWERAGE
33 40 00 STORMWATER UTILITIES
33 52 23.15 POL SERVICE PIPING WELDING
33 56 10 FACTORY-FABRICATED FUEL STORAGE TANKS
33 71 01 OVERHEAD TRANSMISSION AND DISTRIBUTION
33 71 02 UNDERGROUND ELECTRICAL DISTRIBUTION
33 82 00 TELECOMMUNICATION OUTSIDE PLANT (OSP)
DIVISION 34 – TRANSPORTATION
34 73 16 AIRFIELD GROUNDING
APPENDICES
APPENDIX A FURNITURE, FIXTURES AND EQUIPMENT (FF&E) PACKAGE
APPENDIX B STRUCTURAL INTERIOR DESIGN (SID) – COLOR BOARDS
-- END OF PROJECT TABLE OF CONTENTS –
SECTION 26 08 00
APPARATUS INSPECTION AND TESTING
11/22
PART 1 GENERAL
1.1 REFERENCES
The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.
INTERNATIONAL ELECTRICAL TESTING ASSOCIATION (NETA)
NETA ATS (2021) Standard for Acceptance Testing Specifications for Electrical Power Equipment and Systems
1.2 RELATED REQUIREMENTS
Section 26 20 00 INTERIOR DISTRIBUTION SYSTEM applies to this section with additions and modifications specified herein.
1.3 SUBMITTALS
Government approval is required for submittals with a "G" or "S" classification. Submittals not having a "G" or "S" classification are for information only. When used, a code following the "G" classification identifies the office that will review the submittal for the Government.
Submit the following in accordance with Section 01 33 00 SUBMITTAL
PROCEDURES:
SD-06 Test Reports
Acceptance Tests and Inspections ; G, AO
SD-07 Certificates
Qualifications of Organization, and Lead Engineering Technician; G, AO
Acceptance Test and Inspections Procedure ; G, AO
1.4 QUALITY ASSURANCE
1.4.1 Qualifications
Engage the services of a qualified testing organization to provide inspection, testing, calibration, and adjustment of the electrical distribution system and generation equipment listed in paragraph ACCEPTANCE TESTS AND INSPECTIONS herein. Organization must be independent of the supplier, manufacturer, and installer of the equipment. The organization must be a first tier subcontractor. No work required by this section of the specification may be performed by a second tier subcontractor.
a. Submit name and qualifications of organization. Organization must
SECTION 26 08 00 Page 1 have been regularly engaged in the testing of electrical materials, devices, installations, and systems for a minimum of 5 years. The organization must have a calibration program, and test instruments used must be calibrated in accordance with NETA ATS.
b. Submit name and qualifications of the lead engineering technician performing the required testing services. Include a list of three comparable jobs performed by the technician with specific names and telephone numbers for reference. Testing, inspection, calibration, and adjustments must be performed by an engineering technician, certified by NETA (Level III) or the National Institute for Certification in Engineering Technologies (NICET) with a minimum of 5 years' experience inspecting, testing, and calibrating electrical distribution and generation equipment, systems, and devices.
1.4.2 Acceptance Tests and Inspections Reports
Submit certified copies of inspection reports and test reports. Include certification of compliance with specified requirements, identify deficiencies, and recommend corrective action when appropriate. Type and neatly bind test reports to form a part of the final record. Submit test reports documenting the results of each test not more than 10 days after test is completed.
1.4.3 Acceptance Test and Inspections Procedure
Submit test procedure reports for each item of equipment to be field tested at least 45 days prior to planned testing date. Do not perform testing until after test procedure has been approved.
PART 2 PRODUCTS
Not used.
PART 3 EXECUTION
3.1 ACCEPTANCE TESTS AND INSPECTIONS
Testing organization will perform acceptance tests and inspections. Test methods, procedures, and test values must be performed and evaluated in accordance with NETA ATS, the manufacturer's recommendations, and paragraph FIELD QUALITY CONTROL of each applicable specification section.
Tests identified as optional in NETA ATS are not required unless otherwise specified. Place equipment in service only after completion of required tests and evaluation of the test results have been completed. Supply to the testing organization complete sets of shop drawings, settings of adjustable devices, and other information necessary for an accurate test and inspection of the system prior to the performance of any final testing. Notify Contracting Officer at least 14 days in advance of when tests will be conducted by the testing organization. Perform acceptance tests and inspections on applicable equipment and systems specified in the following sections:
a. Section 26 32 15 ENGINE-GENERATOR SET STATIONARY 15-2500 KW, WITH AUXILIARIES. Functional engine shutdown tests, vibration base-line test, and load bank test will not be performed by the testing organization, but by the start-up engineer.
b. Section 26 12 19 PAD-MOUNTED, LIQUID-FILLED, MEDIUM-VOLTAGE
SECTION 26 08 00 Page 2
TRANSFORMERS
c. Section 33 71 02 UNDERGROUND ELECTRICAL DISTRIBUTION. Medium voltage cables and grounding systems only.
d. Section 26 36 23 AUTOMATIC TRANSFER SWITCHES
3.2 SYSTEM ACCEPTANCE
Final acceptance of the system is contingent upon satisfactory completion of acceptance tests and inspections.
3.3 PLACING EQUIPMENT IN SERVICE
A representative of the approved testing organization must be present when equipment tested by the organization is initially energized and placed in service.
-- End of Section --
SECTION 26 08 00 Page 3
SECTION 26 12 19
PAD-MOUNTED, LIQUID-FILLED, MEDIUM-VOLTAGE TRANSFORMERS
05/24
PART 1 GENERAL
1.1 REFERENCES
The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.
AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI)
ANSI C12.1 (2014; Errata 2016) Electric Meters - Code for Electricity Metering
ASTM INTERNATIONAL (ASTM)
ASTM A240/A240M (2024b) Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
ASTM C260/C260M (2010a; R 2016) Standard Specification for Air-Entraining Admixtures for Concrete
ASTM D92 (2012a) Standard Test Method for Flash and Fire Points by Cleveland Open Cup Tester
ASTM D97 (2017b) Standard Test Method for Pour Point of Petroleum Products
ASTM D117 (2018) Standard Guide for Sampling, Test Methods, and Specifications for Electrical Insulating Liquids
ASTM D877/D877M (2019) Standard Test Method for Dielectric Breakdown Voltage of Insulating Liquids Using Disk Electrodes
ASTM D1535 (2014; R 2018) Standard Practice for Specifying Color by the Munsell System
ASTM D3487 (2016; E2017) Standard Specification for Mineral Insulating Oil Used in Electrical Apparatus
FM GLOBAL (FM)
FM APP GUIDE (updated on-line) Approval Guide https://www.approvalguide.com/
INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS (IEEE)
IEEE 386 (2016) Separable Insulated Connector Systems for Power Distribution Systems
SECTION 26 12 19 Page 1
Rated 2.5 kV through 35 kV
IEEE C2 (2023) National Electrical Safety Code
IEEE C37.47 (2011) Standard for High Voltage Distribution Class Current-Limiting Type Fuses and Fuse Disconnecting Switches
IEEE C57.12.00 (2021) General Requirements for Liquid-Immersed Distribution, Power, and Regulating Transformers
IEEE C57.12.28 (2023) Standard for Pad-Mounted Equipment
- Enclosure Integrity
IEEE C57.12.34 (2022) Standard Requirements for Pad-Mounted, Compartmental-Type, Self-Cooled, Three-Phase Distribution Transformers, 10 MVA and Smaller; High Voltage, 34.5 kV Nominal System Voltage and Below; Low Voltage, 15 kV Nominal System Voltage and Below
IEEE C57.12.80 (2010) Standard Terminology for Power and Distribution Transformers
IEEE C57.12.90 (2021) Test Code for Liquid-Immersed Distribution, Power, and Regulating Transformers
IEEE C57.13 (2016) Standard Requirements for Instrument Transformers
IEEE C57.98 (2011) Guide for Transformer Impulse Tests
IEEE C62.11 (2020) Standard for Metal-Oxide Surge Arresters for Alternating Current Power Circuits (>1kV)
IEEE Stds Dictionary (2009) IEEE Standards Dictionary: Glossary of Terms & Definitions
INTERNATIONAL ELECTRICAL TESTING ASSOCIATION (NETA)
NETA ATS (2021) Standard for Acceptance Testing Specifications for Electrical Power Equipment and Systems
NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION (NEMA)
ANSI C12.7 (2022) Requirements for Watthour Meter Sockets
NEMA 260 (1996; R 2004) Safety Labels for Pad-Mounted Switchgear and Transformers Sited in Public Areas
NEMA Z535.4 (2023) Product Safety Signs and Labels
SECTION 26 12 19 Page 2
NEMA/ANSI C12.10 (2011; R 2021) Physical Aspects of Watthour Meters - Safety Standard
NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)
NFPA 70 (2023; ERTA 1 2024; TIA 24-1) National Electrical Code
ORGANISATION FOR ECONOMIC CO-OPERATION AND DEVELOPMENT (OECD)
OECD Test 203 (1992) Fish Acute Toxicity Test
U.S. ENVIRONMENTAL PROTECTION AGENCY (EPA)
EPA 712-C-98-075 (1998) Fate, Transport and Transformation Test Guidelines - OPPTS 835.3100- "Aerobic Aquatic Biodegradation"
EPA 821-R-02-012 (2002) Methods for Measuring the Acute Toxicity of Effluents and Receiving Waters to Freshwater and Marine Organisms
U.S. NATIONAL ARCHIVES AND RECORDS ADMINISTRATION (NARA)
10 CFR 431 Energy Efficiency Program for Certain Commercial and Industrial Equipment
UL SOLUTIONS (UL)
UL 467 (2022) UL Standard for Safety Grounding and Bonding Equipment
1.2 RELATED REQUIREMENTS
Section 26 08 00 APPARATUS INSPECTION AND TESTING applies to this section, with the additions and modifications specified herein.
1.3 DEFINITIONS
Unless otherwise specified or indicated, electrical and electronics terms used in these specifications, and on the drawings, are as defined in IEEE Stds Dictionary .
1.4 SUBMITTALS
Government approval is required for submittals with a "G" or "S" classification. Submittals not having a "G" or "S" classification are for Contractor Quality Control approval. Submittals not having a "G" or "S" classification are for information only. When used, a code following the "G" classification identifies the office that will review the submittal for the Government. Submit the following in accordance with Section
01 33 00 SUBMITTAL PROCEDURES:
SD-02 Shop Drawings
Pad-mounted Transformer Drawings ; G, SD-03 Product Data
SECTION 26 12 19 Page 3
Pad-mounted Transformers ; G, SD-06 Test Reports
Acceptance Checks and Tests ; G, SD-07 Certificates
Transformer Efficiencies ; G, SD-09 Manufacturer's Field Reports
Transformer Test Schedule ; G, Pad-mounted Transformer Design Tests ; G, Pad-mounted Transformer Routine and Other Tests ; G, SD-10 Operation and Maintenance Data
Transformer(s) , Data Package 5; G,
1.4.1 Government Submittal Review
The Contracting Officer will review and approve all submittals in this section requiring Government approval.
1.4.2 Reduced Submittal Requirements
Transformers designed and manufactured by ABB/Hitachi Energy in Jefferson City, MO; by Eaton's Cooper Power Series Transformers in Waukesha, WI; by ERMCO in Dyersburg, TN; or by Howard Industries in Laurel, MS need not submit the entire submittal package requirements of this contract.
Instead, submit the following items:
a. A certification, signed by the manufacturer, stating that the manufacturer will meet the technical requirements of this specification.
b. An outline drawing of the transformer with devices identified (paragraph PAD-MOUNTED TRANSFORMER DRAWINGS, item a).
c. ANSI nameplate data of the transformer (paragraph PAD-MOUNTED TRANSFORMER DRAWINGS, item b).
d. Provide transformer test schedule and routine and other tests required by submittal item "SD-09 Manufacturer's Field Reports".
e. Provide acceptance test reports required by submittal item "SD-06 Test Reports".
f. Provide operation and maintenance manuals required by submittal item "SD-10 Operation and Maintenance Data".
1.5 QUALITY ASSURANCE
1.5.1 Pad-Mounted Transformer Drawings
Include the following as a minimum:
SECTION 26 12 19 Page 4
a. An outline drawing, including front, top, and side views.
b. IEEE nameplate data.
c. Elementary diagrams and wiring diagrams with terminals identified of watthour meter and current transformers.
d. One-line diagram, including switch(es), current transformers, meters, and fuses.
1.5.2 Regulatory Requirements
In each of the publications referred to herein, consider the advisory provisions to be mandatory, except of NFPA 70 when more stringent requirements are specified or indicated, as though the word "must" had been substituted for "should" wherever it appears. Interpret references in these publications to the "authority having jurisdiction," or words of similar meaning, to mean the Contracting Officer. Provide equipment, materials, installation, and workmanship in accordance with NFPA 70 unless more stringent requirements are specified or indicated.
1.5.3 Standard Products
Provide materials and equipment that are products of manufacturers regularly engaged in the production of such products which are of equal material, design and workmanship, and:
a. Have been in satisfactory commercial or industrial use for 2 years prior to bid opening including applications of equipment and materials under similar circumstances and of similar size.
b. Have been on sale on the commercial market through advertisements, manufacturers' catalogs, or brochures during the 2-year period.
c. Where two or more items of the same class of equipment are required, provide products of a single manufacturer; however, the component parts of the item need not be the products of the same manufacturer unless stated in this section.
1.5.3.1 Alternative Qualifications
Products having less than a 2-year field service record will be acceptable if a certified record of satisfactory field operation for not less than 6000 hours, exclusive of the manufacturers' factory or laboratory tests, is furnished.
1.5.3.2 Material and Equipment Manufacturing Date
Products manufactured more than 3 years prior to date of delivery to site are not acceptable.
1.6 MAINTENANCE
1.6.1 Additions to Operation and Maintenance Data
Submit operation and maintenance data in accordance with Section 01 78 23 OPERATION AND MAINTENANCE DATA and as specified herein. In addition to requirements of Data Package 5, include the following on the actual
SECTION 26 12 19 Page 5 transformer(s) provided:
a. An instruction manual with pertinent items and information highlighted
b. An outline drawing, front, top, and side views
c. Prices for spare parts and supply list
d. Routine and field acceptance test reports
e. Fuse curves for primary fuses
f. Actual nameplate diagram
g. Date of purchase
PART 2 PRODUCTS
2.1 PRODUCT COORDINATION
Products and materials not considered to be pad-mounted transformers and related accessories are specified in Section 33 71 01 OVERHEAD TRANSMISSION AND DISTRIBUTION, Section 26 20 00 INTERIOR DISTRIBUTION SYSTEM, and Section 33 71 02 UNDERGROUND ELECTRICAL DISTRIBUTION.
2.2 THREE-PHASE PAD-MOUNTED TRANSFORMERS
IEEE C57.12.34 , IEEE C57.12.28 and as specified herein. Submit manufacturer's information for each component, device, insulating fluid, and accessory provided with the transformer.
2.2.1 Compartments
Provide high- and low-voltage compartments separated by steel isolating barriers extending the full height and depth of the compartments.
Compartment doors: hinged lift-off type with stop in open position and three-point latching.
2.2.1.1 High Voltage, Dead-Front
High-voltage compartment contains: the incoming line, insulated high-voltage load-break connectors, bushing well inserts, load-break switch handle(s), access to oil-immersed bayonet fuses, dead-front surge arresters, tap changer handle, connector parking stands, protective caps, and ground pad.
a. Insulated high-voltage load-break connectors: IEEE 386 , rated 15 kV, 95 kV BIL. Current rating: 200 amperes rms continuous. Short time rating: 10,000 amperes rms symmetrical for a time duration of 0.17 seconds. Connector must have a steel reinforced hook-stick eye, grounding eye, test point, and arc-quenching contact material.
b. Bushing well inserts and feed-thru inserts: IEEE 386 , 200 amperes, 15 kV Class. Provide a bushing well insert for each bushing well unless indicated otherwise. Provide feed-thru inserts as indicated.
c. Load-break switch
Radial-feed two-position oil-immersed type rated at 15 kV, 95 kV BIL, SECTION 26 12 19 Page 6 with a continuous current rating and load-break rating of 200 amperes, and a make-and-latch rating of 12,000 rms amperes symmetrical. Locate the switch handle in the high-voltage compartment.
d. Provide bayonet oil-immersed, expulsion fuses in series with oil-immersed, partial-range, current-limiting fuses. The bayonet fuse links sense both high currents and high oil temperature in order to provide thermal protection to the transformer. Coordinate transformer protection with expulsion fuse clearing low-current faults and current-limiting fuse clearing high-current faults beyond the interrupting rating of the expulsion fuse. Include an oil retention valve inside the bayonet assembly housing, which closes when the fuse holder is removed, and an external drip shield to minimize oil spills. Display a warning label adjacent to the bayonet fuse(s) cautioning against removing or inserting fuses unless the transformer has been de-energized and the tank pressure has been released.
Bayonet fuse assembly: 150 kV BIL.
Oil-immersed current-limiting fuses: IEEE C37.47 ; 50,000 rms amperes symmetrical interrupting rating at the system voltage specified.
Connect current-limiting fuses ahead of the radial-feed load-break switch.
e. Surge arresters: IEEE C62.11 , rated 10 kV, fully shielded, dead-front, metal-oxide-varistor, elbow type with resistance-graded gap. Provide three arresters for radial feed circuits.
f. Parking stands: Provide a parking stand near each bushing.
g. Protective caps: IEEE 386 , 200 amperes, 15 kV Class. Provide insulated protective caps (not shipping caps) for insulating and sealing out moisture from unused bushings.
2.2.1.2 Low Voltage
Low-voltage compartment contains: low-voltage bushings with NEMA spade terminals, accessories, metering, stainless steel or laser-etched anodized aluminum diagrammatic transformer nameplate, and ground pad.
a. Include the following accessories: drain valve with sampler device, fill plug, pressure relief device, liquid level gage, pressure-vacuum gage, and dial type thermometer with maximum temperature indicator.
b. Metering: NEMA/ANSI C12.10 . Provide a socket-mounted electronic programmable outdoor watthour meter, surface mounted flush against the side of the low-voltage compartment as indicated. Program the meter at the factory or in the field. When field programming is performed, turn field programming device over to the Contracting Officer at completion of project. Coordinate the meter to system requirements.
(1) Design: Provide meter designed for use on a 3-phase, 4-wire, 480Y/277 volt system with 3 current transformers. Include necessary KYZ pulse initiation hardware for Energy Monitoring and Control System (EMCS). Coordinate with existing installation requirements and match current utility regulations.
(2) Coordination: Provide meter coordinated with ratios of current transformers and transformer secondary voltage.
SECTION 26 12 19 Page 7
(3) Class: 20; Form: 9S; Accuracy: plus or minus 1.0 percent;
Finish: Class II
(4) Cover: Polycarbonate and lockable to prevent tampering and unauthorized removal.
(5) Kilowatt-hour Register: five digit electronic programmable type
(6) Demand Register:
(a) Provide solid state
(b) Meter reading multiplier: Indicate multiplier on the meter face.
(c) Demand interval length: programmed for 15 minutes with rolling demand up to six subintervals per interval.
(7) Meter fusing: Provide a fuse block mounted in the secondary compartment containing one fuse per phase to protect the voltage input to the watthour meter. Size fuses as recommended by the meter manufacturer.
(8) Socket: ANSI C12.7 . Provide NEMA Type 3R, box-mounted socket having automatic circuit-closing bypass and having jaws compatible with requirements of the meter. Cover unused hub openings with blank hub plates. Paint box Munsell 7GY3.29/1.5 green to match the pad-mounted transformer to which the box-mounted socket is attached. The Munsell color notation is specified in ASTM D1535.
(9) Current transformers: IEEE C57.13 . Provide butyl-molded window type current transformers with 600-volt insulation, 10 kV BIL and mount on the low-voltage bushings. Route current transformer leads in a location as remote as possible from the power transformer secondary cables to permit current measurements to be taken with hook-on-ammeters. Provide three current transformers per power transformer with characteristics listed in the following table.
kVA Sec. Volt CT Ratio RF Meter Acc. Class
300 480Y/277 300/5 3.0 0.3 thru B-0.2
2.2.2 Transformer
a. Less-flammable bio-based liquid-insulated or oil-insulated, two winding, 60 hertz, 65 degrees C rise above a 30 degrees C average ambient, self-cooled type.
b. Transformer rated 300 kVA.
c. Transformer voltage ratings: 13,100 V Delta - 480Y/277 Volt, 3Phase, -Wire
SECTION 26 12 19 Page 8
d. Tap changer: externally operated, manual type for changing tap setting when the transformer is de-energized. Provide four 2.5 percent full capacity taps, two above and two below rated primary voltage. Indicate which tap setting is in use, clearly visible when the compartment is opened.
e. Minimum tested percent impedance at 85 degrees C:
(1) .50 for units rated 75kVA and below
(2) .87 for units rated 112.5kVA to 300kVA
(3) .03 for 500kVA rated units
(4) .32 for units rated 750kVA and above
f. Comply with the following audible sound level limits:
kVA DECIBELS
(MAX
75 51
112.5 55
150 55
225 55
300 55
500 56
750 57
1000 58
1500 60
2000 61
2500 62
g. Include:
(1) Lifting lugs and provisions for jacking under base, with base construction suitable for using rollers or skidding in any direction.
(2) An insulated low-voltage neutral bushing with NEMA spade terminal, and with removable ground strap.
(3) kVA rating conspicuously displayed on its enclosure.
2.2.2.1 Specified Transformer Efficiencies
Provide transformer efficiency calculations utilizing the actual no-load and load loss values obtained during the routine tests performed on the actual transformer(s) prepared for this project. Reference no-load losses (NLL) at 20 degrees C. Reference load losses (LL) at 55 degrees C and at
SECTION 26 12 19 Page 9
50 percent of the nameplate load. The transformer is not acceptable if the calculated transformer efficiency is less than the efficiency indicated in the "KVA / Efficiency" table below. The table is based on requirements contained within 10 CFR 431 , Subpart K. Submit certification, including supporting calculations, from the manufacturer indicating conformance.
kVA EFFICIENCY (percent)
15 98.65
30 98.83
45 98.92
75 99.03
112.5 99.11
150 99.16
225 99.23
300 99.27
500 99.35
750 99.40
1000 99.43
1500 99.48
2000 99.51
2500 99.53 above 2500 99.54
2.2.3 Insulating Liquid
a. Less-flammable transformer liquids: NFPA 70 and FM APP GUIDE for less-flammable liquids having a fire point not less than 300 degrees C tested per ASTM D92 and a dielectric strength not less than 33 kV tested per ASTM D877/D877M. Provide identification of transformer as "non-PCB" and "manufacturer's name and type of fluid" on the nameplate.
Provide a fluid that is a biodegradable, electrical insulating, and cooling liquid classified by UL and approved by FM as "less flammable" with the following properties:
(1) Pour point: ASTM D97, less than -15 degree C
(2) Aquatic biodegradation: EPA 712-C-98-075 , ultimately biodegradable as designated by EPA.
SECTION 26 12 19 Page 10
(3) Trout toxicity: OECD Test 203 , zero mortality of EPA 821-R-02-012 , pass
b. Mineral oil: ASTM D3487, Type II, tested in accordance with ASTM D117.
Provide identification of transformer as "non-PCB" and "Type II mineral oil" on the nameplate.
2.2.3.1 Liquid-Filled Transformer Nameplates
Provide nameplate information in accordance with IEEE C57.12.00 and as modified or supplemented by this section.
2.2.4 Corrosion Protection
Provide corrosion resistant bases and cabinets of transformers, fabricated of stainless steel conforming to ASTM A240/A240M , Type 304 or 304L. Base includes any part of pad-mounted transformer that is within 75 mm of concrete pad.
Paint entire transformer assembly Munsell 7GY3.29/1.5 green, with paint coating system complying with IEEE C57.12.28 regardless of base, cabinet, and tank material. The Munsell color notation is specified in ASTM D1535.
2.3 WARNING SIGNS AND LABELS
Provide warning signs for the enclosures of pad-mounted transformers having a nominal rating exceeding 600 volts in accordance with NEMA Z535.4 and NEMA 260.
a. When the enclosure integrity of such equipment is specified to be in accordance with IEEE C57.12.28 , such as for pad-mounted transformers, provide self-adhesive warning labels on the outside of the high voltage compartment door(s)with nominal dimensions of 178 by 255 mm with the legend "WARNING HIGH VOLTAGE" printed in two lines of nominal 50 mm high letters. Include the work "WARNING" in white letters on an orange background and the words "HIGH VOLTAGE" in black letters on a white background.
2.4 ARC FLASH WARNING LABEL
Provide arc flash warning label for the enclosure of pad-mounted transformers. Locate this self-adhesive warning label on the outside of the high voltage compartment door warning of potential electrical arc flash hazards and appropriate PPE required. Provide label format as indicated.
2.5 GROUNDING AND BONDING
UL 467 . Provide grounding and bonding as specified in Section 33 71 02
UNDERGROUND ELECTRICAL DISTRIBUTION.
2.6 PADLOCKS
Provide padlocks for pad-mounted equipment, keyed as directed by the Contracting Officer. Comply with Section 08 71 00 DOOR HARDWARE.
2.7 CAST-IN-PLACE CONCRETE
Provide concrete associated with electrical work for other than encasement
SECTION 26 12 19 Page 11 of underground ducts rated for 30 MPa minimum 28-day compressive strength unless specified otherwise. Conform to the requirements of Section
03 30 00 CAST-IN-PLACE CONCRETE.
Provide concrete associated with electrical work as follows:
a. Composed of fine aggregate, coarse aggregate, portland cement, and water so proportioned and mixed as to produce a plastic, workable mixture.
b. Fine aggregate: hard, dense, durable, clean, and uncoated sand.
c. Coarse aggregate: reasonably well graded from 4.75 mm to 25 mm.
d. Fine and coarse aggregates: free from injurious amounts of dirt, vegetable matter, soft fragments or other deleterious substances.
e. Water: fresh, clean, and free from salts, alkali, organic matter, and other impurities.
f. Concrete associated with electrical work for other than encasement of underground ducts: 30 MPa minimum 28-day compressive strength unless specified otherwise.
g. Slump: Less than 100 mm. Retempering of concrete will not be permitted.
h. Exposed, unformed concrete surfaces: smooth, wood float finish.
i. Concrete must be cured for a period of not less than 7 days, and concrete made with high early strength portland cement must be repaired by patching honeycombed or otherwise defective areas with cement mortar as directed by the Contracting Officer.
j. Air entrain concrete exposed to weather using an air-entraining admixture conforming to ASTM C260/C260M.
k. Air content: between 4 and 6 percent.
2.8 SOURCE QUALITY CONTROL
2.8.1 Transformer Test Schedule
The Government reserves the right to witness tests. Provide transformer test schedule for tests to be performed at the manufacturer's test facility. Submit required test schedule and location, and notify the Contracting Officer 30 calendar days before scheduled test date. Notify Contracting Officer 15 calendar days in advance of changes to scheduled date.
a. Test Instrument Calibration
(1) Provide a calibration program which assures that all applicable test instruments are maintained within rated accuracy.
(2) Accuracy: Traceable to the National Institute of Standards and Technology.
(3) Instrument calibration frequency schedule: less than or equal to
SECTION 26 12 19 Page 12
12 months for both test floor instruments and leased specialty equipment.
(4) Dated calibration labels: visible on all test equipment.
(5) Calibrating standard: higher accuracy than that of the instrument tested.
(6) Keep up-to-date records that indicate dates and test results of instruments calibrated or tested. For instruments calibrated by the manufacturer on a routine basis, in lieu of third party calibration, include the following:
(a) Maintain up-to-date instrument calibration instructions and procedures for each test instrument.
(b) Identify the third party/laboratory calibrated instrument to verify that calibrating standard is met.
2.8.2 Design Tests
IEEE C57.12.00 , and IEEE C57.12.90 . Section 5.1.2 in IEEE C57.12.80 states that "design tests are made only on representative apparatus of basically the same design." Submit design test reports (complete with test data, explanations, formulas, and results), in the same submittal package as the catalog data and drawings for each of the specified transformer(s), with design tests performed prior to the award of this contract.
a. Tests: certified and signed by a registered professional engineer.
b. Temperature rise: "Basically the same design" for the temperature rise test means a pad-mounted transformer with the same coil construction (such as wire wound primary and sheet wound secondary), the same kVA, the same cooling type (KNAN), the same temperature rise rating, and the same insulating liquid as the transformer specified.
c. Lightning impulse: "Basically the same design" for the lightning impulse dielectric test means a pad-mounted transformer with the same BIL, the same coil construction (such as wire wound primary and sheet wound secondary), and a tap changer, if specified. Design lightning impulse tests includes the primary windings only of that transformer.
(1) IEEE C57.12.90 , paragraph 10.3 entitled "Lightning Impulse Test Procedures," and IEEE C57.98 .
(2) State test voltage levels.
(3) Provide photographs of oscilloscope display waveforms or plots of digitized waveforms with test report.
d. Lifting and moving devices: "Basically the same design" requirement for the lifting and moving devices test means a test report confirming that the lifting device being used is capable of handling the weight of the specified transformer in accordance with IEEE C57.12.34 .
e. Pressure: "Basically the same design" for the pressure test means a pad-mounted transformer with a tank volume within 30 percent of the tank volume of the transformer specified.
SECTION 26 12 19 Page 13
f. Short circuit: "Basically the same design" for the short circuit test means a pad-mounted transformer with the same kVA as the transformer specified.
2.8.3 Routine and Other Tests
IEEE C57.12.00 . Routine and other tests: performed in accordance with IEEE C57.12.90 by the manufacturer on each of the actual transformer(s) prepared for this project to ensure that the design performance is maintained in production. Submit test reports, by serial number and receive approval before delivery of equipment to the project site.
Required tests and testing sequence as follows:
a. Phase relation
b. Ratio
c. No-load losses (NLL) and excitation current
d. Load losses (LL) and impedance voltage
e. Dielectric
(1) Impulse
(2) Applied voltage
(3) Induced voltage
f. Leak
PART 3 EXECUTION
3.1 INSTALLATION
Conform to IEEE C2 , NFPA 70 , and to the requirements specified herein.
Provide new equipment and materials unless indicated or specified otherwise.
3.2 GROUNDING
NFPA 70 and IEEE C2 , except provide grounding systems with a resistance to solid earth ground not exceeding 25 ohms.
3.2.1 Grounding Electrodes
Provide driven ground rods as specified in Section 33 71 02 UNDERGROUND ELECTRICAL DISTRIBUTION. Connect ground conductors to the upper end of ground rods by exothermic weld or compression connector. Provide compression connectors at equipment end of ground conductors.
3.2.2 Pad-Mounted Transformer Grounding
Provide a ground ring around the transformer with 4/0 AWG bare copper.
Provide four ground rods in the ground ring, one per corner. Install the ground rods at least 3000 mm apart from each other. Provide separate copper grounding conductors and connect them to the ground loop as indicated. When work in addition to that indicated or specified is
SECTION 26 12 19 Page 14 required to obtain the specified ground resistance, the provision of the contract covering "Changes" applies. Provide in accordance with the details on the drawings.
3.2.3 Connections
Make joints in grounding conductors and loops by exothermic weld or compression connector. Install exothermic welds and compression connectors as specified in Section 33 71 02 UNDERGROUND ELECTRICAL
DISTRIBUTION.
3.2.4 Grounding and Bonding Equipment
UL 467 , except as indicated or specified otherwise.
3.3 INSTALLATION OF EQUIPMENT AND ASSEMBLIES
Install and connect pad-mounted transformers furnished under this section as indicated on project drawings, the approved shop drawings, and as specified herein.
3.3.1 Meters and Current Transformers
ANSI C12.1 .
3.4 FIELD APPLIED PAINTING
Where field painting of enclosures is required to correct damage to the manufacturer's factory applied coatings, provide manufacturer's recommended coatings and apply in accordance with manufacturer's instructions.
3.5 WARNING SIGN MOUNTING
Provide the number of signs required to be readable from each accessible side, but space the signs a maximum of 9 meters apart.
3.6 FOUNDATION FOR EQUIPMENT AND ASSEMBLIES
Mount transformer on concrete slab as follows:
a. Unless otherwise indicated, provide the slab with dimensions at least 200 mm thick, reinforced with a 152 by 152 mm MW19 by MW19 mesh placed uniformly 100 mm from the top of the slab.
b. Place slab on a 150 mm thick, well-compacted gravel base.
c. Install slab such that top of concrete slab is approximately 100 mm above the finished grade with gradual slope for drainage.
d. Provide edges above grade with 15 mm chamfer.
e. Provide slab of adequate size to project at least 200 mm beyond the equipment.
Stub up conduits, with bushings, 50 mm into cable wells in the concrete pad. Coordinate dimensions of cable wells with transformer cable training areas.
SECTION 26 12 19 Page 15
3.6.1 Cast-In-Place Concrete
Provide cast-in-place concrete work in accordance with the requirements of Section 03 30 00 CAST-IN-PLACE CONCRETE.
3.6.2 Sealing
When the installation is complete, seal all entries into the equipment enclosure with an approved sealing method. Provide seals of sufficient strength and durability to protect all energized live parts of the equipment from rodents, insects, or other foreign matter.
3.7 FIELD QUALITY CONTROL
3.7.1 Performance of Acceptance Checks and Tests
Perform in accordance with the manufacturer's recommendations and include the following visual and mechanical inspections and electrical tests, performed in accordance with NETA ATS. Submit reports, including acceptance criteria and limits for each test in accordance with NETA ATS "Test Values".
3.7.1.1 Pad-Mounted Transformers
a. Visual and mechanical inspection
(1) Compare equipment nameplate data with specifications and approved shop drawings.
(2) Inspect physical and mechanical condition. Check for damaged or cracked insulators and leaks.
(3) Inspect anchorage, alignment, and grounding.
(4) Verify the presence of PCB content labeling.
(5) Verify the bushings and transformer interiors are clean.
(6) Inspect all bolted electrical connections for high resistance using low-resistance ohmmeter, verifying tightness of accessible bolted electrical connections by calibrated torque-wrench method, or performing thermographic survey.
(7) Verify correct liquid level in tanks and bushings.
(8) Verify that positive pressure is maintained on gas-blanketed transformers.
(9) Perform specific inspections and mechanical tests as recommended by manufacturer.
(10) Verify de-energized tap changer position is left as specified.
(11) Verify the presence of transformer surge arresters.
b. Electrical tests
(1) Perform resistance measurements through all bolted connections with low-resistance ohmmeter.
SECTION 26 12 19 Page 16
(2) Verify proper secondary voltage phase-to-phase and phase-to-neutral after energization and prior to loading.
(3) Perform insulation-resistance tests, winding-to-winding and each winding-to-ground. Calculate polarization index. Verify that the tap changer is set at the specified ratio.
(4) Perform turns-ratio tests at all tap positions.
(5) Perform insulation power-factor or dissipation-factor tests on all windings in accordance with test equipment manufacturer’s published data.
(6) Perform power-factor or dissipation-factor tests on each bushing equipped with a power-factor/capacitance tap. In the absence of a power-factor/capacitance tap, perform hot-collar tests.
(7) Measure the resistance of each high-voltage winding in each de-energized tap-changer position. Measure the resistance of each low-voltage winding in each de-energized tap-changer position, if applicable.
(8) Remove and test a sample of insulating liquid for the following:
Dielectric breakdown voltage, Acid neutralization number, Specific gravity, Interfacial tension, Color, Visual Condition, Water in insulating liquids (Required on 25 kV or higher voltages and on all silicone-filled units.), and Power factor or dissipation factor.
(9) Perform dissolved-gas analysis (DGA) on a sample of insulating liquid.
3.7.1.2 Current Transformers
a. Visual and mechanical inspection
(1) Compare equipment nameplate data with specifications and approved shop drawings.
(2) Inspect physical and mechanical condition.
(3) Verify correct connection.
(4) Verify that adequate clearances exist between primary and secondary circuit wiring.
(5) Verify the unit is clean.
(6) Inspect all bolted electrical connections for high resistance using low-resistance ohmmeter, verifying tightness of accessible bolted electrical connections by calibrated torque-wrench method, or performing thermographic survey.
(7) Verify that all required grounding and shorting connections provide good contact.
(8) Verify correct operation of transformer withdrawal mechanism and grounding operation.
SECTION 26 12 19 Page 17
(9) Verify appropriate lubrication on moving current-carrying parts and on moving and sliding surfaces.
b. Electrical tests
(1) Perform resistance measurements through all bolted connections with low-resistance ohmmeter, if applicable.
(2) Perform insulation-resistance test.
(3) Perform a polarity test.
(4) Perform a ratio-verification test.
3.7.1.3 Watthour Meter
a. Visual and mechanical inspection
(1) Compare equipment nameplate data with specifications and approved shop drawings.
(2) Inspect physical and mechanical condition.
(3) Verify tightness of electrical connections.
b. Electrical tests
(1) Calibrate watthour meters according to manufacturer's published data.
(2) Verify that correct multiplier has been placed on face of meter, where applicable .
(3) Verify that current transformer secondary circuits are intact.
3.7.1.4 Grounding System
a. Visual and mechanical inspection
(1) Inspect ground system for compliance with contract plans and specifications.
b. Electrical tests
(1) Perform ground-impedance measurements utilizing the fall-of-potential method. On systems consisting of interconnected ground rods, perform tests after interconnections are complete. On systems consisting of a single ground rod perform tests before any wire is connected. Take measurements in normally dry weather, not less than 48 hours after rainfall. Use a portable ground resistance tester in accordance with manufacturer's instructions to test each ground or group of grounds. Use an instrument equipped with a meter reading directly in ohms or fractions thereof to indicate the ground value of the ground rod or grounding systems under test.
(2) Submit the measured ground resistance of each ground rod and grounding system, indicating the location of the rod and
SECTION 26 12 19 Page 18 grounding system. Include the test method and test setup (i.e., pin location) used to determine ground resistance and soil conditions at the time the measurements were made.
3.7.1.5 Surge Arresters, Medium- and High-Voltage
a. Visual and mechanical inspection
(1) Compare equipment nameplate data with specifications and approved shop drawings.
(2) Inspect physical and mechanical condition.
(3) Inspect anchorage, alignment, grounding, and clearances.
(4) Verify the arresters are clean.
(5) Inspect all bolted electrical connections for high resistance using low-resistance ohmmeter, verifying tightness of accessible bolted electrical connections by calibrated torque-wrench method, or performing thermographic survey.
(6) Verify that the ground lead on each device is individually attached to a ground bus or ground electrode.
b. Electrical tests
(1) Perform resistance measurements through all bolted connections with low-resistance ohmmeter, if applicable.
(2) Perform an insulation-resistance test on each arrester, phase terminal-to-ground.
(3) Test grounding connection.
3.7.2 Follow-Up Verification
Upon completion of acceptance checks and tests, show by demonstration in service that circuits and devices are in good operating condition and properly performing the intended function. As an exception to requirements stated elsewhere in the contract, notify the Contracting Officer 5 working days in advance of the dates and times of checking and testing.
-- End of Section --
SECTION 26 12 19 Page 19
SECTION 26 20 00
INTERIOR DISTRIBUTION SYSTEM
08/23
PART 1 GENERAL
1.1 REFERENCES
The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.
ASTM INTERNATIONAL (ASTM)
ASTM B1 (2013) Standard Specification for Hard-Drawn Copper Wire
ASTM B8 (2023) Standard Specification for Concentric-Lay-Stranded Copper Conductors, Hard, Medium-Hard, or Soft
ASTM D709 (2017) Standard Specification for Laminated Thermosetting Materials
INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS (IEEE)
IEEE 81 (2012) Guide for Measuring Earth Resistivity, Ground Impedance, and Earth Surface Potentials of a Ground System
IEEE C2 (2023) National Electrical Safety Code
IEEE Stds Dictionary (2009) IEEE Standards Dictionary: Glossary of Terms & Definitions
INTERNATIONAL ELECTRICAL TESTING ASSOCIATION (NETA)
NETA ATS (2021) Standard for Acceptance Testing Specifications for Electrical Power Equipment and Systems
NATIONAL ELECTRICAL CONTRACTORS ASSOCIATION (NECA)
NECA NEIS 1 (2015) Standard for Good Workmanship in Electrical Construction
NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION (NEMA)
ANSI C80.1 (2020) American National Standard for Electrical Rigid Steel Conduit (ERSC)
ANSI C80.3 (2020) American National Standard for Electrical Metallic Tubing (EMT)
NEMA 250 (2020) Enclosures for Electrical Equipment (1000 Volts Maximum)
SECTION 26 20 00 Page 1
NEMA ICS 1 (2022) Standard for Industrial Control and Systems: General Requirements
NEMA ICS 2 (2000; R 2020) Industrial Control and Systems Controllers, Contactors, and Overload Relays Rated 600 V
NEMA ICS 4 (2015) Application Guideline for Terminal Blocks
NEMA ICS 6 (1993; R 2016) Industrial Control and Systems: Enclosures
NEMA KS 1 (2013) Enclosed and Miscellaneous Distribution Equipment Switches (600 V Maximum)
NEMA MG 1 (2021) Motors and Generators
NEMA MG 10 (2017) Energy Management Guide for Selection and Use of Fixed Frequency Medium AC Squirrel-Cage Polyphase Induction Motors
NEMA MG 11 (1977; R 2012) Energy Management Guide for Selection and Use of Single Phase Motors
NEMA RN 1 (2018) Polyvinyl-Chloride (PVC) Externally Coated Galvanized Rigid Steel Conduit and Intermediate Metal Conduit
NEMA ST 20 (2014) Dry-Type Transformers for General Applications
NEMA TC 2 (2020) Standard for Electrical Polyvinyl Chloride (PVC) Conduit
NEMA TC 3 (2021) Polyvinyl Chloride (PVC) Fittings for Use With Rigid PVC Conduit and Tubing
NEMA VE 2 (2018; ERTA 1-2 2018) Cable Tray Installation Guidelines
NEMA WD 1 (1999; R 2020) Standard for General Color Requirements for Wiring Devices
NEMA WD 6 (2021) Wiring Devices Dimensions Specifications
NEMA Z535.4 (2023)…
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