Conformed-AMDT002-79439.2-SOF-Annex-Tech-Summary-Changes.pdf

Solicitation No. - W912PM22R0012 Date: 08-SEPTEMBER-2022 Project Title – 79439.2, SOF Annex and HAZMAT Facility Amendment No. 002

SUMMARY OF CHANGES

1. CHANGES TO SPECIFICATIONS. Attached hereto are revised sections to the specifications.

A. REVISED SECTIONS: Revisions are bookmarked and notated with “AM-002” to reflect the responses provided to the Bidder Inquiries.

00 10 00 - SOLICITATION CONTRACT LINE ITEM NUMBER (CLIN) SCHEDULE

o Update to “NOTICE TO BIDDER, NOTE 1”, per response to Bidder Inquiries

26 20 00 – INTERIOR DISTRIBUTION SYSTEM

o Updates to Spec Section 26 20 00 per 9/6/2022 response to Bidder Inquiry 9906209

27 40 00 – AUDIO VIDEO SYSTEM

o Updates to Spec Section 27 40 00 per 9/6/2022 response to Bidder Inquiry 9909317

2. CHANGES TO DRAWINGS. Attached hereto are revised drawing sheets. The revision tracker in the Title Block of each sheet is populated to reflect the current Amendment Number and issue date.

A. REVISED DRAWINGS (ISSUED):

Removal of “CUI” markings from the Drawings (Vols 1-3 of 3).

Updates to the Civil drawings to address E&SC express permit review comments from Jodi Pace, NCDEQ (G-002, CE001, CE002, CE003, CE101A, CE101B, CE102A, CE500).

Updates to Drawings ESS101 and ESS102 per 9/6/2022 response to Bidder Inquiry 9906212.

…end of summary…

PN79439.2 SOF Technical Support Training Annex, Ft. Bragg, NC W912PM22R0012

SECTION 00 10 00 Page 1 of 7

SECTION 00 10 00 SOLICITATION CONTRACT LINE ITEM

NUMBER (CLIN) SCHEDULE

SECTION 00 10 00 Page 2 of 7

SOLICITATION CONTRACT LINE ITEM

NUMBER (CLIN) SCHEDULE

CLIN Description Unit Quantity Unit Price Total

BASE BID: Technical Support Training Annex Building Construction Complete.

LS 1

BASE BID: Site Development Outside Five Foot (5’) Line. All work required to fence the compound and provide gravel hardstand, gravel POV parking, and gravel access drive.

Note: The infrastructure for all utilities to five feet (5’) of the building shall be provided by the Utility Providers and not included in the Base Bid.

LS 1

BASE BID: Metal Poles, Bases, and Conduit for

CCTV.

LS 1

0004 BASE BID: HAZMAT Storage Building.

LS 1

OPTIONAL BID ITEM 01:

Concrete Pad for Modular Trailers.

OPTIONAL BID ITEM 02:

Provide asphalt pavement and striping for hardstand.

OPTIONAL BID ITEM 03:

Provide asphalt pavement, curbing, and striping for POV Parking.

LS

SECTION 00 10 00 Page 3 of 7

OPTIONAL BID ITEM 04:

Provide asphalt pavement, curbing, and striping for access drive.

0009 NOT USED. LS 1

OPTIONAL BID ITEM 06: FF&E

Purchase and installation.

(Information only, include CLINs 0010A and 0010B only once in Totals below).

0010A OPTIONAL BID ITEM 06A:

FF&E Purchase.

0010B OPTIONAL BID ITEM 06B:

FF&E Installation.

OPTIONAL BID ITEM 07:

Audio-Visual (A/V) Purchase and Installation of Equipment. (Information only, include CLINs 0011A and 0011B only once in Totals below)

Note: A/V infrastructure is to be included in CLIN 0001 Base Bid.

0011A

OPTIONAL BID ITEM 07A:

Audio-Visual Equipment Purchase.

0011B

OPTIONAL BID ITEM 07B:

Audio-Visual Equipment Installation.

SECTION 00 10 00 Page 4 of 7

OPTIONAL BID ITEM 08:

Access Control System (ACS) Purchase and Installation of Equipment. (Information only, include CLINs 0012A and 0012B only once in Totals below)

Note: ACS infrastructure is to be included in CLIN 0001 Base Bid.

0012A

OPTIONAL BID ITEM 08A:

Access Control System Equipment Purchase.

0012B

OPTIONAL BID ITEM 08B:

Access Control System Equipment Installation.

OPTIONAL BID ITEM 09:

CCTV System Purchase and Installation of Equipment. (Information only, include CLINs 0013A and 0013B only once in Totals below).

Note: CCTV infrastructure is to be included in CLIN 0003

0013A

OPTIONAL BID ITEM 09A:

CCTV System Equipment Purchase.

0013B

OPTIONAL BID ITEM 09B:

CCTV System Equipment Installation.

SECTION 00 10 00 Page 5 of 7

OPTIONAL BID ITEM 10:

Integrated Commercial Intrusion Detection System (ICIDS) Purchase and Installation of Equipment.

(1) The Contractor shall purchase and install a complete security alarm system in the required CAAs.

This includes the sensing devices, annunciators, batteries, and all associated equipment necessary to make a complete and useable system. A conduit system with junction boxes and signal wiring shall be provided for ICIDS back to the main communication room.

Provisions shall include dedicated power circuits, communications connections, raceways, and signal wiring for each device. Each security alarm system must transmit the alarm signals to the I2MC Central Control Console over dry copper and/or fiber cables.

SECTION 00 10 00 Page 6 of 7

(Cont ’d)

2) The intrusion detection system shall be the current Army Standard ICIDS-V, manufactured by DAQ.

Contractor will design, install, and provide programming based on system specifications, Ft. Bragg Physical Security Office, and Ft. Bragg Installation design guidelines.

(Information only, include CLINs 0014A and 0014B only once in Totals below).

Note: ICIDS infrastructure is to be included in CLIN 0001

0014A

OPTIONAL BID ITEM 10A:

Integrated Commercial Intrusion Detection System (ICIDS) Equipment Purchase.

0014B

OPTIONAL BID ITEM 10B:

Integrated Commercial Intrusion Detection System (ICIDS) Equipment Installation.

TOTAL BASE BID ITEMS CLINs 0001-0004

TOTAL AMOUNT OF OPTIONAL BID ITEMS CLINs 0005-0014

TOTAL BID ITEMS CLINs 0001 – 0014

PROPOSED CONTRACT DURATION:

SECTION 00 10 00 Page 7 of 7

NOTICE TO BIDDERS

NOTE 2:

THE GOVERNMENT RESERVES THE RIGHT TO EXERCISE OPTIONAL BID ITEMS 1-10

(CLIN ITEMS 0005 - 0014), WITHIN 180 CALENDAR DAYS OF NOTICE TO

PROCEED.

NOTE 3:

THE EXERCISE OF OPTIONAL BID ITEMS 1-10 (CLIN ITEMS 0005 - 0014),

SHALL BE SUBJECT TO THE AVAILABILITY OF FUNDS.

NOTE 1:

FOR OPTIONAL BID ITEMS 1-10 (CLIN ITEMS 0005 - 0014), IF EXERCISED,

THE PERIOD OF PERFORMANCE SHALL NOT BE EXTENDED BEYOND THE ORIGINAL

CONTRACT DURATION OF ***AM-002\*** 365 548 730 ***/AM-002*** CALENDAR

DAYS. PERFORMANCE OF ANY AWARDED OPTIONAL BID ITEMS SHALL RUN

CONCURRENTLY WITH THE BASE BID ITEMS CONTRACT DURATION SO THAT THE

PERIOD OF PERFORMANCE SHALL NOT EXCEED ***AM-002\*** 365 548 730

***/AM-002*** CALENDAR DAYS.

SOF Tech Support Training Annex PN79439.2 Fort Bragg, North Carolina

SECTION TABLE OF CONTENTS

DIVISION 26 - ELECTRICAL

SECTION 26 20 00

INTERIOR DISTRIBUTION SYSTEM

02/14 procurement, installation, and testing of electrical wiring systems for construction projects

PART 1 GENERAL

1.1 REFERENCES

1.2 DEFINITIONS

1.3 SUBMITTALS

1.4 QUALITY ASSURANCE

1.4.1 Fuses

1.4.2 Regulatory Requirements

1.4.3 Standard Products

1.4.3.1 Alternative Qualifications

1.4.3.2 Material and Equipment Manufacturing Date

1.5 MAINTENANCE

1.5.1 Electrical Systems

1.6 WARRANTY

PART 2 PRODUCTS

2.1 MATERIALS AND EQUIPMENT

2.2 CONDUIT AND FITTINGS

2.2.1 Rigid Metallic Conduit

2.2.1.1 Rigid, Threaded Zinc-Coated Steel Conduit

2.2.1.2 Rigid Aluminum Conduit

2.2.2 Rigid Nonmetallic Conduit

2.2.3 Intermediate Metal Conduit (IMC)

2.2.4 Electrical, Zinc-Coated Steel Metallic Tubing (EMT)

2.2.5 Plastic-Coated Rigid Steel and IMC Conduit

2.2.6 Flexible Metal Conduit

2.2.6.1 Liquid-Tight Flexible Metal Conduit, Steel

2.2.7 Fittings for Metal Conduit, EMT, and Flexible Metal Conduit

2.2.7.1 Fittings for Rigid Metal Conduit and IMC

2.2.7.2 Fittings for EMT

2.2.8 Fittings for Rigid Nonmetallic Conduit

2.2.9 Liquid-Tight Flexible Nonmetallic Conduit

2.3 SURFACE RACEWAY

2.3.1 Surface Metal Raceway

2.4 CABLE TRAYS

2.4.1 Basket-Type Cable Trays

2.4.2 Trough-Type Cable Trays

2.4.3 Ladder-Type Cable Trays/Cable Runways

2.4.4 Channel-Type Cable Trays

2.5 OUTLET BOXES AND COVERS

2.5.1 Floor Outlet Boxes

SECTION 26 20 00 Page 1

READY TO ADVERTISE

2.5.2 Outlet Boxes for Telecommunications System

2.6 CABINETS, JUNCTION BOXES, AND PULL BOXES

2.7 WIRES AND CABLES

2.7.1 Conductors

2.7.1.1 Equipment Manufacturer Requirements

2.7.1.2 Aluminum Conductors

2.7.1.3 Minimum Conductor Sizes

2.7.2 Color Coding

2.7.2.1 Ground and Neutral Conductors

2.7.2.2 Ungrounded Conductors

2.7.3 Insulation

2.7.4 Bonding Conductors

2.7.4.1 Telecommunications and Security Bonding Backbone (TBB)

2.7.4.2 Bonding Conductor for Telecommunications and Security

2.7.5 Service Entrance Cables

2.7.6 Cable Tray Cable or Power Limited Tray Cable

2.7.7 Cord Sets and Power-Supply Cords

2.8 SPLICES AND TERMINATION COMPONENTS

2.9 DEVICE PLATES

2.10 SWITCHES

2.10.1 Toggle Switches

2.10.2 Switch with Red Pilot Handle

2.10.3 Breakers Used as Switches

2.10.4 Disconnect Switches

2.11 FUSES

2.11.1 Fuseholders

2.11.2 Cartridge Fuses, Current Limiting Type (Class R)

2.11.3 Cartridge Fuses, High-Interrupting Capacity, Current Limiting

Type (Classes J, L, and CC)

2.11.4 Cartridge Fuses, Current Limiting Type (Class T)

2.12 RECEPTACLES

2.12.1 Switched Duplex Receptacles

2.12.2 Weatherproof Receptacles

2.12.3 Ground-Fault Circuit Interrupter Receptacles

2.12.4 Special Purpose Receptacles

2.12.5 Plugs

2.13 PANELBOARDS

2.13.1 Enclosure

2.13.2 Panelboard Buses

2.13.2.1 Panelboard Neutrals for Non-Linear Loads

2.13.3 Circuit Breakers

2.13.3.1 Multipole Breakers

2.13.3.2 Circuit Breaker With Ground-Fault Circuit Interrupter

2.13.3.3 Circuit Breakers for HVAC Equipment

2.14 ENCLOSED CIRCUIT BREAKERS

2.15 MOTOR SHORT-CIRCUIT PROTECTOR (MSCP)

2.16 TRANSFORMERS

2.16.1 Specified Transformer Efficiency

2.16.2 Transformers With Non-Linear Loads

2.17 MOTORS

2.17.1 High Efficiency Single-Phase Motors

2.17.2 Premium Efficiency Polyphase Motors

2.17.3 Motor Sizes

2.17.4 Wiring and Conduit

2.18 MOTOR CONTROLLERS

2.18.1 Control Wiring

2.18.2 Control Circuit Terminal Blocks

2.18.3 Types of Terminal Blocks

2.18.4 Control Circuits

SECTION 26 20 00 Page 2

2.18.5 Enclosures for Motor Controllers

2.18.6 Multiple-Speed Motor Controllers and Reversible Motor

Controllers

2.18.7 Pushbutton Stations

2.18.8 Pilot and Indicating Lights

2.19 MANUAL MOTOR STARTERS (MOTOR RATED SWITCHES)

2.20 LOCKOUT REQUIREMENTS

2.21 TELECOMMUNICATIONS SYSTEM

2.22 GROUNDING AND BONDING EQUIPMENT

2.22.1 Ground Rods

2.22.2 Ground Bus

2.22.3 Telecommunications Security and CATV Grounding Busbar

2.23 MANUFACTURER'S NAMEPLATE

2.24 FIELD FABRICATED NAMEPLATES

2.25 WARNING SIGNS

2.26 FIRESTOPPING MATERIALS

2.27 WIREWAYS

2.28 METERING

2.29 SURGE PROTECTIVE DEVICES

2.30 FACTORY APPLIED FINISH

2.31 TRANSFORMER FACTORY TESTS

2.32 COORDINATED POWER SYSTEM PROTECTION

PART 3 EXECUTION

3.1 INSTALLATION

3.1.1 Underground Service

3.1.2 Service Entrance Identification

3.1.2.1 Labels

3.1.3 Wiring Methods

3.1.3.1 Pull Wire

3.1.3.2 Flat Conductor Cable

3.1.4 Conduit Installation

3.1.4.1 Restrictions Applicable to EMT

3.1.4.2 Restrictions Applicable to Nonmetallic Conduit

3.1.4.3 Restrictions Applicable to Flexible Conduit

3.1.4.4 Underground Conduit

3.1.4.5 Conduit for Circuits Rated Greater Than 600 Volts

3.1.4.6 Conduit Installed Under Floor Slabs

3.1.4.7 Conduit Through Floor Slabs

3.1.4.8 Conduit Installed in Concrete Floor Slabs

3.1.4.9 Stub-Ups

3.1.4.10 Conduit Support

3.1.4.11 Directional Changes in Conduit Runs

3.1.4.12 Locknuts and Bushings

3.1.4.13 Flexible Connections

3.1.4.14 Telecommunications and Signal System Pathway

3.1.4.15 Community Antenna Television (CATV) System Conduits

3.1.5 Cable Tray Installation

3.1.6 Boxes, Outlets, and Supports

3.1.6.1 Boxes

3.1.6.2 Pull Boxes

3.1.6.3 Extension Rings

3.1.7 Mounting Heights

3.1.8 Conductor Identification

3.1.8.1 Marking Strips

3.1.9 Splices

3.1.9.1 Splices of Aluminum Conductors

3.1.10 Terminating Aluminum Conductors

SECTION 26 20 00 Page 3

3.1.10.1 Termination to Copper Bus

3.1.10.2 Termination to Aluminum Bus

3.1.11 Covers and Device Plates

3.1.12 Electrical Penetrations

3.1.13 Grounding and Bonding

3.1.13.1 Ground Rods

3.1.13.2 Grounding Connections

3.1.13.3 Ground Bus

3.1.13.4 Resistance

3.1.13.5 Telecommunications System

3.1.14 Equipment Connections

3.1.15 Government-Furnished Equipment

3.1.16 Watthour Meters

3.1.17 Surge Protective Devices

3.2 FIELD FABRICATED NAMEPLATE MOUNTING

3.3 WARNING SIGN MOUNTING

3.4 FIELD APPLIED PAINTING

3.5 FIELD QUALITY CONTROL

3.5.1 Devices Subject to Manual Operation

3.5.2 600-Volt Wiring Test

3.5.3 Transformer Tests

3.5.4 Ground-Fault Receptacle Test

3.5.5 Grounding System Test

3.5.6 Watthour Meter

-- End of Section Table of Contents --

SECTION 26 20 00 Page 4

SECTION 26 20 00

INTERIOR DISTRIBUTION SYSTEM

02/14

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 in the text by the basic designation only.

ASTM INTERNATIONAL (ASTM)

ASTM B1 (2013) Standard Specification for Hard-Drawn Copper Wire

ASTM B8 (2011) Standard Specification for Concentric-Lay-Stranded Copper Conductors, Hard, Medium-Hard, or Soft

ASTM D709 (2013) Laminated Thermosetting Materials

INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS (IEEE)

IEEE 100 (2000; Archived) The Authoritative Dictionary of IEEE Standards Terms

IEEE 81 (2012) Guide for Measuring Earth Resistivity, Ground Impedance, and Earth Surface Potentials of a Ground System

IEEE C2 (2012; Errata 2012; INT 1-4 2012; INT 5-7 2013; INT 8-10 2014; INT 11 2015) National Electrical Safety Code

INTERNATIONAL ELECTRICAL TESTING ASSOCIATION (NETA)

NETA ATS (2013) Standard for Acceptance Testing Specifications for Electrical Power Equipment and Systems

NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION (NEMA)

ANSI C12.1 (2014; Errata 2016) Electric Meters Code for Electricity Metering

ANSI C80.1 (2005) American National Standard for Electrical Rigid Steel Conduit (ERSC)

ANSI C80.3 (2015) American National Standard for Electrical Metallic Tubing (EMT)

ANSI C80.5 (2005) American National Standard for Electrical Rigid Aluminum Conduit

NEMA 250 (2020) Enclosures for Electrical Equipment

SECTION 26 20 00 Page 5

(1000 Volts Maximum)

NEMA FU 1 (2012) Low Voltage Cartridge Fuses

NEMA ICS 1 (2000; R 2015) Standard for Industrial Control and Systems: General Requirements

NEMA ICS 2 (2000; R 2005; Errata 2008) Standard for Controllers, Contactors, and Overload Relays Rated 600 V

NEMA ICS 4 (2015) Terminal Blocks

NEMA ICS 6 (1993; R 2011) Enclosures

NEMA KS 1 (2013) Enclosed and Miscellaneous Distribution Equipment Switches (600 V Maximum)

NEMA MG 1 (2014) Motors and Generators

NEMA MG 10 (2013) 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 (2005; R 2013) Polyvinyl-Chloride (PVC) Externally Coated Galvanized Rigid Steel Conduit and Intermediate Metal Conduit

NEMA ST 20 (1992; R 1997) Standard for Dry-Type Transformers for General Applications

NEMA TC 2 (2013) Standard for Electrical Polyvinyl Chloride (PVC) Conduit

NEMA TC 3 (2015) Standard for Polyvinyl Chloride (PVC) Fittings for Use With Rigid PVC Conduit and Tubing

NEMA VE 1 (2017) Standard for Metal Cable Tray Systems

NEMA VE 2 (2013) Cable Tray Installation Guidelines

NEMA WD 1 (1999; R 2005; R 2010) Standard for General Color Requirements for Wiring Devices

NEMA WD 6 (2012) Wiring Devices Dimensions Specifications

NEMA Z535.4 (2011) American National Standard for Product Safety Signs and Labels

SECTION 26 20 00 Page 6

NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)

NFPA 70 (2020; ERTA 20-1 2020; ERTA 20-2 2020; TIA

20-1; TIA 20-2; TIA 20-3; TIA 20-4)

National Electrical Code

NFPA 70E (2015; ERTA 1 2015) Standard for Electrical Safety in the Workplace

NFPA 780 (2014) Standard for the Installation of Lightning Protection Systems

TELECOMMUNICATIONS INDUSTRY ASSOCIATION (TIA)

TIA-568.1-D Commercial Building Telecommunications Cabling Standard

TIA-569 (2017e) Commercial Building Standard for Telecommunications Pathways and Spaces

TIA-607-C (2019d) Generic Telecommunications Bonding and Grounding (Earthing) for Customer Premises

U.S. ARMY (DA)

Bragg NEC IDC (2017) Installation Design Criteria (IDC) For Fort Bragg Specific Communications Infrastructure Requirements

Telecommunications Interior Infrastructure Planning and Design, With Change 1

U.S. NATIONAL ARCHIVES AND RECORDS ADMINISTRATION (NARA)

29 CFR 1910.147 Control of Hazardous Energy (Lock Out/Tag Out)

UNDERWRITERS LABORATORIES (UL)

UL 1 (2005; Reprint Jul 2012) Standard for Flexible Metal Conduit

UL 1063 (2006; Reprint Jul 2012) Machine-Tool Wires and Cables

UL 1242 (2006; Reprint Mar 2014) Standard for Electrical Intermediate Metal Conduit -- Steel

UL 1283 (2015) Electromagnetic Interference Filters

UL 1449 (2014;Reprint Mar 2015) Surge Protective Devices

UL 1561 (2011; Reprint Jun 2015) Dry-Type General Purpose and Power Transformers

UL 1660 (2014) Liquid-Tight Flexible Nonmetallic

SECTION 26 20 00 Page 7

READY TO ADVERTISE

***AM-002\***

UFC 3-581-01 UFC 3-580-01

***/AM-002***

Conduit

UL 198M (2003; Reprint Feb 2013) Standard for Mine-Duty Fuses

UL 20 (2010; Reprint Feb 2012) General-Use Snap Switches

UL 360 (2013; Reprint Jan 2015) Liquid-Tight Flexible Steel Conduit

UL 4248-1 (2007; Reprint Oct 2013) UL Standard for Safety Fuseholders - Part 1: General Requirements

UL 4248-12 (2007; Reprint Dec 2012) UL Standard for Safety Fuseholders - Part 12: Class R

UL 44 (2014; Reprint Feb 2015) Thermoset-Insulated Wires and Cables

UL 467 (2007) Grounding and Bonding Equipment

UL 486A-486B (2013; Reprint Feb 2014) Wire Connectors

UL 486C (2013; Reprint Feb 2014) Splicing Wire Connectors

UL 489 (2013; Reprint Mar 2014) Molded-Case Circuit Breakers, Molded-Case Switches, and Circuit-Breaker Enclosures

UL 498 (2012; Reprint Oct 2014) Attachment Plugs and Receptacles

UL 5 (2011) Surface Metal Raceways and Fittings

UL 50 (2007; Reprint Apr 2012) Enclosures for Electrical Equipment, Non-environmental Considerations

UL 506 (2008; Reprint Oct 2013) Specialty Transformers

UL 508 (1999; Reprint Oct 2013) Industrial Control Equipment

UL 510 (2005; Reprint Jul 2013) Polyvinyl Chloride, Polyethylene and Rubber Insulating Tape

UL 514A (2013) Metallic Outlet Boxes

UL 514B (2012; Reprint Nov 2014) Conduit, Tubing and Cable Fittings

UL 514C (2014; Reprint Dec 2014) Nonmetallic Outlet Boxes, Flush-Device Boxes, and Covers

SECTION 26 20 00 Page 8

UL 6 (2007; Reprint Nov 2014) Electrical Rigid Metal Conduit-Steel

UL 651 (2011; Reprint May 2014) Standard for Schedule 40 and 80 Rigid PVC Conduit and Fittings

UL 67 (2009; Reprint Apr 2015) Standard for Panelboards

UL 6A (2008; Reprint Nov 2014) Electrical Rigid Metal Conduit - Aluminum, Red Brass, and Stainless Steel

UL 797 (2007; Reprint Dec 2012) Electrical Metallic Tubing -- Steel

UL 817 (2015) Standard for Cord Sets and Power-Supply Cords

UL 83 (2014) Thermoplastic-Insulated Wires and Cables

UL 854 (2004; Reprint Nov 2014) Standard for Service-Entrance Cables

UL 869A (2006) Reference Standard for Service Equipment

UL 870 (2008; Reprint Feb 2013) Standard for Wireways, Auxiliary Gutters, and Associated Fittings

UL 943 (2006; Reprint Jun 2012) Ground-Fault Circuit-Interrupters

UL 984 (1996; Reprint Sep 2005) Hermetic Refrigerant Motor-Compressors

1.2 DEFINITIONS

Unless otherwise specified or indicated, electrical and electronics terms used in these specifications, and on the drawings, are as defined in

IEEE 100 .

1.3 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are for information only. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government. Submittals with an "S" are for inclusion in the Sustainability eNotebook, in conformance with Section 01 33 29 SUSTAINABILITY and in accordanca with with Section 01 33 00.

SD-02 Shop Drawings

Panelboards; G, RO

SECTION 26 20 00 Page 9

Transformers; G, RO

Cable trays; G, RO

Wireways; G, RO

Marking strips drawings; G, RO

SD-03 Product Data

Receptacles; G, RO

Circuit breakers; G, RO

Switches; G, RO

Transformers; G, RO

Enclosed circuit breakers; G, RO

Motor controllers; G, RO

Manual motor starters; G, RO

Metering; G, RO

Telecommunications Grounding Busbar; G, RO

Surge protective devices; G, RO

Include performance and characteristic curves.

SD-06 Test Reports

600-volt wiring test; G, RO

Grounding system test; G, RO

Transformer tests; G, RO

Ground-fault receptacle test; G, RO

SD-07 Certificates

Fuses; G, RO

SD-09 Manufacturer's Field Reports

Transformer factory tests

SD-10 Operation and Maintenance Data

Electrical Systems, Data Package 5; G, RO

Metering, Data Package 3 G, RO

SECTION 26 20 00 Page 10

1.4 QUALITY ASSURANCE

1.4.1 Fuses

Submit coordination data as specified in paragraph, FUSES of this section.

1.4.2 Regulatory Requirements

In each of the publications referred to herein, consider the advisory provisions to be mandatory, as though the word, "shall" or "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 the mandatory and advisory provisions of NFPA 70 unless more stringent requirements are specified or indicated.

1.4.3 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.

1.4.3.1 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.

1.4.3.2 Material and Equipment Manufacturing Date

Products manufactured more than 3 years prior to date of delivery to site are not acceptable.

1.5 MAINTENANCE

1.5.1 Electrical Systems

Submit operation and maintenance manuals for electrical systems that provide basic data relating to the design, operation, and maintenance of the electrical distribution system for the building. Include the following:

a. Single line diagram of the "as-built" building electrical system.

b. Schematic diagram of electrical control system (other than HVAC, SECTION 26 20 00 Page 11 covered elsewhere).

c. Manufacturers' operating and maintenance manuals on active electrical equipment.

1.6 WARRANTY

Provide equipment items supported by service organizations that are reasonably convenient to the equipment installation in order to render satisfactory service to the equipment on a regular and emergency basis during the warranty period of the contract.

PART 2 PRODUCTS

2.1 MATERIALS AND EQUIPMENT

As a minimum, meet requirements of UL, where UL standards are established for those items, and requirements of NFPA 70 for all materials, equipment, and devices.

2.2 CONDUIT AND FITTINGS

Conform to the following:

2.2.1 Rigid Metallic Conduit

2.2.1.1 Rigid, Threaded Zinc-Coated Steel Conduit

ANSI C80.1 , UL 6 .

2.2.1.2 Rigid Aluminum Conduit

ANSI C80.5 , UL 6A .

2.2.2 Rigid Nonmetallic Conduit

PVC Type EPC-40 in accordance with NEMA TC 2, UL 651

2.2.3 Intermediate Metal Conduit (IMC)

UL 1242 , zinc-coated steel only.

2.2.4 Electrical, Zinc-Coated Steel Metallic Tubing (EMT)

UL 797 , ANSI C80.3 .

2.2.5 Plastic-Coated Rigid Steel and IMC Conduit

NEMA RN 1, Type 40( 40 mils thick).

2.2.6 Flexible Metal Conduit

UL 1 .

2.2.6.1 Liquid-Tight Flexible Metal Conduit, Steel

UL 360 .

SECTION 26 20 00 Page 12

2.2.7 Fittings for Metal Conduit, EMT, and Flexible Metal Conduit

UL 514B . Ferrous fittings: cadmium- or zinc-coated in accordance with

UL 514B .

2.2.7.1 Fittings for Rigid Metal Conduit and IMC

Threaded-type. Split couplings unacceptable.

2.2.7.2 Fittings for EMT

Steelcompression type.

2.2.8 Fittings for Rigid Nonmetallic Conduit

NEMA TC 3 for PVC, and UL 514B .

2.2.9 Liquid-Tight Flexible Nonmetallic Conduit

UL 1660 .

2.3 SURFACE RACEWAY

2.3.1 Surface Metal Raceway

UL 5 , two-piece painted steel, totally enclosed, snap-cover type.

2.4 CABLE TRAYS

NEMA VE 1. Provide the following:

a. Cable trays: form a wireway system, with a nominal depth as indicated.

b. Cable trays: constructed of steel that has been zinc-coated after fabrication.

c. Cable trays: include splice and end plates, dropouts, and miscellaneous hardware.

d. Edges, fittings, and hardware: finished free from burrs and sharp edges.

e. Fittings: ensure not less than load-carrying ability of straight tray sections and have manufacturer's minimum standard radius.

Radius of bends: as indicated.

2.4.1 Basket-Type Cable Trays

Provide size as indicated with maximum wire mesh spacing of 2 by 4 inch.

2.4.2 Trough-Type Cable Trays

Provide size as indicated.

2.4.3 Ladder-Type Cable Trays/Cable Runways

Provide size as indicated with maximum rung spacing of 12 inches.

SECTION 26 20 00 Page 13

2.4.4 Channel-Type Cable Trays

Provide size as indicated. Provide trays with one-piece construction having slots spaced not more than 4 1/2 inches on centers.

2.5 OUTLET BOXES AND COVERS

UL 514A , cadmium- or zinc-coated, if ferrous metal. UL 514C , if nonmetallic.

2.5.1 Floor Outlet Boxes

Provide the following:

a. Boxes: adjustable nonadjustable and concrete tight.

b. Each outlet: consisting of nonmetallic or cast-metal body with threaded openings, or sheet-steel body with knockouts for conduits, adjustable , and cover plate withthreaded plug.

c. Telecommunications outlets: consisting of flush, aluminum or stainless steel housing with a receptacle as specified and 3/4 inch top opening.

d. Receptacle outlets: consisting offlush aluminum or stainless steel housing with duplex-type receptacle as specified herein.

e. Provide gaskets where necessary to ensure watertight installation.

2.5.2 Outlet Boxes for Telecommunications System

Provide the following:

a. Standard type 4 11/16 inches square by 2 1/8 inches deep.

b. Outlet boxes for wall-mounted telecommunications outlets: 4 11/16 by 4 11/16 by 2 1/4 inches deep.

c. Depth of boxes: large enough to allow manufacturers' recommended conductor bend radii.

d. Outlet boxes for fiber optic telecommunication outlets: include a minimum 3/8 inch deep single or two gang plaster ring as shown and installed using a minimum 1 inch conduit system.

2.6 CABINETS, JUNCTION BOXES, AND PULL BOXES

Volume greater than 100 cubic inches, UL 50 , hot-dip, zinc-coated, if sheet steel.

2.7 WIRES AND CABLES

Provide wires and cables in accordance applicable requirements of NFPA 70 and UL for type of insulation, jacket, and conductor specified or indicated. Do not use wires and cables manufactured more than 12 months prior to date of delivery to site.

SECTION 26 20 00 Page 14

2.7.1 Conductors

Provide the following:

a. Conductor sizes and capacities shown are based on copper, unless indicated otherwise.

b. Conductors No. 8 AWG and larger diameter: stranded.

c. Conductors No. 10 AWG and smaller diameter: solid.

d. Conductors for remote control, alarm, and signal circuits, classes 1, 2, and 3: stranded unless specifically indicated otherwise.

Conductors indicated to be No. 6 AWG or smaller diameter: copper.

Conductors indicated to be No. 4 AWG and larger diameter: either copper or aluminum, unless type of conductor material is specifically indicated, or specified, or required by equipment manufacturer.

2.7.1.1 Equipment Manufacturer Requirements

When manufacturer's equipment requires copper conductors at the terminations or requires copper conductors to be provided between components of equipment, provide copper conductors or splices, splice boxes, and other work required to satisfy manufacturer's requirements.

2.7.1.2 Aluminum Conductors

Provide aluminum conductors of AA-8000 series electrical grade aluminum alloy conductors. Type EC/1350 aluminum is not acceptable. If Contractor choosees to provide aluminum for conductors No. 4 AWG and larger diameter, Contractor is responsible for increasing conductor size to have same ampacity as copper size indicated; increasing conduit and pull box sizes to accommodate larger size aluminum conductors in accordance with NFPA 70 ;

ensuring that pulling tension rating of aluminum conductor is sufficient;

providing panelboards that are UL listed for use with aluminum, and so labeled; relocating equipment, modifying equipment terminations, resizing equipment; and resolving problems that are direct results of providing aluminum conductors in lieu of copper.

2.7.1.3 Minimum Conductor Sizes

Provide minimum conductor size in accordance with the following:

a. Branch circuits: No. 12 AWG. Circuits extending over 80 feet shall be #10.

b. Class 1 remote-control and signal circuits: No. 14 AWG.

c. Class 2 low-energy, remote-control and signal circuits: No. 16 AWG.

d. Class 3 low-energy, remote-control, alarm and signal circuits: No. 22

AWG.

2.7.2 Color Coding

Provide color coding for service, feeder, branch, control, and signaling circuit conductors.

SECTION 26 20 00 Page 15

2.7.2.1 Ground and Neutral Conductors

Provide color coding of ground and neutral conductors as follows:

a. Grounding conductors: Green.

b. Neutral conductors: White.

c. Exception, where neutrals of more than one system are installed in same raceway or box, other neutrals color coding: white with a different colored (not green) stripe for each.

2.7.2.2 Ungrounded Conductors

Provide color coding of ungrounded conductors in different voltage systems as follows:

a. 208/120 volt, three-phase

(1) Phase A - black

(2) Phase B - red

(3) Phase C - blue

b. 480/277 volt, three-phase

(1) Phase A - brown

(2) Phase B - orange

(3) Phase C - yellow

c. 120/240 volt, single phase: Black and red

2.7.3 Insulation

Unless specified or indicated otherwise or required by NFPA 70 , provide power and lighting wires rated for 600-volts, Type THWN/THHN conforming to UL 83 , except that grounding wire may be type TW conforming to UL 83 ;

remote-control and signal circuits: Type TW or TF, conforming to UL 83 .

Where lighting fixtures require 90-degree Centigrade (C) conductors, provide only conductors with 90-degree C insulation or better.

2.7.4 Bonding Conductors

ASTM B1, solid bare copper wire for sizes No. 8 AWG and smaller diameter;

ASTM B8, Class B, stranded bare copper wire for sizes No. 6 AWG and larger diameter.

2.7.4.1 Telecommunications and Security Bonding Backbone (TBB)

Provide a copper conductor TBB in accordance with TIA-607-C with No. 6 AWG minimum size, and sized at 2 kcmil per linear foot of conductor length up to a maximum size of 750 MCM. Provide insulated TBB with insulation as specified in the paragraph INSULATION and meeting the fire ratings of its pathway.

SECTION 26 20 00 Page 16

2.7.4.2 Bonding Conductor for Telecommunications and Security

Provide a copper conductor Bonding Conductor for Telecommunications between the telecommunications main grounding busbar (TMGB) and the electrical service ground in accordance with TIA-607-C . Size the bonding conductor for telecommunications the same as the largest TBB per TIA-607-C .

2.7.5 Service Entrance Cables

Service Entrance (SE) and Underground Service Entrance (USE) Cables, UL 854 .

2.7.6 Cable Tray Cable or Power Limited Tray Cable

UL listed; type TC or PLTC.

2.7.7 Cord Sets and Power-Supply Cords

UL 817 .

2.8 SPLICES AND TERMINATION COMPONENTS

UL 486A-486B for wire connectors and UL 510 for insulating tapes.

Connectors for No. 10 AWG and smaller diameter wires: insulated, pressure-type in accordance with UL 486A-486B or UL 486C (twist-on splicing connector). Provide solderless terminal lugs on stranded conductors.

2.9 DEVICE PLATES

Provide the following:

a. UL listed, one-piece device plates for outlets to suit the devices installed.

b. For metal outlet boxes, plates on unfinished walls: zinc-coated sheet steel or cast metal having round or beveled edges.

c. For nonmetallic boxes and fittings, other suitable plates may be provided.

e. Plates on finished walls: satin finish stainless steel or brushed-finish aluminum, minimum 0.03 inch thick.

f. Screws: machine-type with countersunk heads in color to match finish of plate.

g. Sectional type device plates are not be permitted.

h. Plates installed in wet locations: gasketed and UL listed for "wet locations."

i. Receptacle Plates shall have panel name, location, and circuit number inconspicuously engraved on them.

2.10 SWITCHES

2.10.1 Toggle Switches

NEMA WD 1, UL 20 , single pole, double pole, three-way, and four-way, SECTION 26 20 00 Page 17 totally enclosed with bodies of thermoplastic or thermoset plastic and mounting strap with grounding screw. Include the following:

a. Handles: white thermoplastic.

b. Wiring terminals: screw-type, side-wired.

c. Contacts: silver-cadmium and contact arm - one-piece copper alloy.

d. Switches: rated quiet-type ac only, 120/277 volts, with current rating and number of poles indicated.

2.10.2 Switch with Red Pilot Handle

NEMA WD 1. Provide the following:

a. Pilot lights that are integrally constructed as a part of the switch's handle.

b. Pilot light color: red and illuminate whenever the switch is closed or "on".

c. Pilot lighted switch: rated 20 amps and 120 volts or 277 volts as indicated.

d. The circuit's neutral conductor to each switch with a pilot light.

2.10.3 Breakers Used as Switches

For 120- and 277-Volt fluorescent fixtures, mark breakers "SWD" in accordance with UL 489 .

2.10.4 Disconnect Switches

NEMA KS 1. Provide heavy duty-type switches where indicated, where switches are rated higher than 240 volts, and for double-throw switches.

Utilize Class R fuseholders and fuses for fused switches, unless indicated otherwise. Provide horsepower rated for switches serving as the motor-disconnect means. Provide switches in NEMA 1 , enclosure or as indicated per NEMA ICS 6 .

2.11 FUSES

NEMA FU 1. Provide complete set of fuses for each fusible switch.

Coordinate time-current characteristics curves of fuses serving motors or connected in series with circuit breakers or other circuit protective devices for proper operation. Submit coordination data for approval.

Provide fuses with a voltage rating not less than circuit voltage.

2.11.1 Fuseholders

Provide in accordance with UL 4248-1 .

2.11.2 Cartridge Fuses, Current Limiting Type (Class R)

UL 198M , Class RK-5 time-delay type. Provide only Class R associated fuseholders in accordance with UL 4248-12 .

SECTION 26 20 00 Page 18

2.11.3 Cartridge Fuses, High-Interrupting Capacity, Current Limiting Type (Classes J, L, and CC)

UL 198M , Class J for zero to 600 amperes, Class L for 601 to 6,000 amperes, and Class CC for zero to 30 amperes.

2.11.4 Cartridge Fuses, Current Limiting Type (Class T)

UL 198M , Class T for zero to 1,200 amperes, 300 volts; and zero to 800 amperes, 600 volts.

2.12 RECEPTACLES

Provide the following:

a. UL 498 , hard use (also designated heavy-duty), grounding-type.

b. Ratings and configurations: as indicated.

c. Bodies: white as per NEMA WD 1.

d. Face and body: thermoplastic supported on a metal mounting strap.

e. Dimensional requirements: per NEMA WD 6.

f. Screw-type, side-wired wiring terminals or of the solderless pressure type having suitable conductor-release arrangement.

g. Grounding pole connected to mounting strap.

h. The receptacle: containing triple-wipe power contacts and double or triple-wipe ground contacts.

i. Receptacles that are controlled by a switch or automatic control devices shall be permanently marked with the symbol shown in Figure 406.3(E) of National Electrical Code 2017 with the word "controlled".

j. Receptables shall be installed with the ground on top.

2.12.1 Switched Duplex Receptacles

Provide separate terminals for each ungrounded pole. Top receptacle:

switched when installed.

2.12.2 Weatherproof Receptacles

Provide receptacles, UL listed for use in "wet locations". Include cast metal box with gasketed, hinged, lockable and weatherproof while-in-use, polycarbonate, UV resistant/stabilized cover plate.

2.12.3 Ground-Fault Circuit Interrupter Receptacles

UL 943 , duplex type for mounting in standard outlet box. Provide device capable of detecting current leak of 6 milliamperes or greater and tripping per requirements of UL 943 for Class A ground-fault circuit interrupter devices. Provide screw-type, side-wired wiring terminals or pre-wired (pigtail) leads.

SECTION 26 20 00 Page 19

2.12.4 Special Purpose Receptacles

Receptacles serving indicated areas are special purpose. Provide in ratings indicated.

2.12.5 Plugs

Provide heavy-duty, rubber-covered three-, four-, or five-wire cord of required size, install plugs thereon, and attach to equipment. Provide UL listed plugs with receptacles, complete with grounding blades. Where equipment is not available, turn over plugs and cord assemblies to the Government.

2.13 PANELBOARDS

Provide panelboards in accordance with the following:

a. UL 67 and UL 50 having a short-circuit current rating as indicated.

b. Panelboards for use as service disconnecting means: additionally conform to UL 869A .

c. Panelboards: circuit breaker-equipped.

d. Designed such that individual breakers can be removed without disturbing adjacent units or without loosening or removing supplemental insulation supplied as means of obtaining clearances as required by UL.

e. "Specific breaker placement" is required in panelboards to match the breaker placement indicated in the panelboard schedule on the drawings.

f. Use of "Subfeed Breakers" is not acceptable unless specifically indicated otherwise.

g. Main breaker: "separately" mounted "above" branch breakers.

h. Where "space only" is indicated, make provisions for future installation of breakers.

i. Directories: indicate load served by each circuit in panelboard.

j. Directories: indicate source of service to panelboard (e.g., Panel MH1 served from Panel MDP).

l. Type directories and mount in holder behind transparent protective covering.

m. Panelboards: listed and labeled for their intended use.

n. Panelboard nameplates: provided in accordance with paragraph FIELD

FABRICATED NAMEPLATES.

2.13.1 Enclosure

Provide panelboard enclosure in accordance with the following:

a. UL 50 .

SECTION 26 20 00 Page 20

b. Cabinets mounted outdoors or flush-mounted: hot-dipped galvanized after fabrication.

c. Cabinets: painted in accordance with paragraph PAINTING.

d. Outdoor cabinets: NEMA 3R raintight with conduit hubs welded to the cabinet.

e. Front edges of cabinets: form-flanged or fitted with structural shapes welded or riveted to the sheet steel, for supporting the panelboard front.

f. All cabinets: fabricated such that no part of any surface on the finished cabinet deviates from a true plane by more than 1/8 inch.

g. Holes: provided in the back of indoor surface-mounted cabinets, with outside spacers and inside stiffeners, for mounting the cabinets with a 1/2 inch clear space between the back of the cabinet and the wall surface.

h. Flush doors: mounted on hinges that expose only the hinge roll to view when the door is closed.

i. Each door: fitted with a combined catch and lock, except that doors over 24 inches long provided with a three-point latch having a knob with a T-handle, and a cylinder lock.

j. Keys: two provided with each lock, with all locks keyed alike.

k. Finished-head cap screws: provided for mounting the panelboard fronts on the cabinets.

2.13.2 Panelboard Buses

Support bus bars on bases independent of circuit breakers. Design main buses and back pans so that breakers may be changed without machining, drilling, or tapping. Provide isolated neutral bus in each panel for connection of circuit neutral conductors. Provide separate ground bus identified as equipment grounding bus per UL 67 for connecting grounding conductors; bond to steel cabinet

2.13.2.1 Panelboard Neutrals for Non-Linear Loads

Provide in accordance with the following:.

a. UL listed, with panelboard type specifically UL heat rise tested for use on non-linear loads.

b. Panelboard: heat rise tested in accordance with UL 67 , except with the neutral assembly installed and carrying 200 percent of the phase bus current during testing.

c. Verification of the testing procedure: provided upon request.

d. Two neutral assemblies paralleled together with cable is not acceptable.

e. Nameplates for panelboard rated for use on non-linear loads: marked "SUITABLE FOR NON-LINEAR LOADS" and in accordance with paragraph FIELD

SECTION 26 20 00 Page 21

FABRICATED NAMEPLATES.

f. Provide a neutral label with instructions for wiring the neutral of panelboards rated for use on non-linear loads.

2.13.3 Circuit Breakers

UL 489 , thermal magnetic-type having a minimum short-circuit current rating equal to the short-circuit current rating of the panelboard in which the circuit breaker will be mounted. Breaker terminals: UL listed as suitable for type of conductor provided. Where indicated on the drawings, provide circuit breakers with shunt trip devices. Series rated circuit breakers and plug-in circuit breakers are unacceptable.

2.13.3.1 Multipole Breakers

Provide common trip-type with single operating handle. Design breaker such that overload in one pole automatically causes all poles to open.

Maintain phase sequence throughout each panel so that any three adjacent breaker poles are connected to Phases A, B, and C, respectively.

2.13.3.2 Circuit Breaker With Ground-Fault Circuit Interrupter

UL 943 and NFPA 70 . Provide with "push-to-test" button, visible indication of tripped condition, and ability to detect and trip on current imbalance of 6 milliamperes or greater per requirements of UL 943 for Class A ground-fault circuit interrupter.

2.13.3.3 Circuit Breakers for HVAC Equipment

Provide circuit breakers for HVAC equipment having motors (group or individual) marked for use with HACR type and UL listed as HACR type.

2.14 ENCLOSED CIRCUIT BREAKERS

UL 489 . Individual molded case circuit breakers with voltage and continuous current ratings, number of poles, overload trip setting, and short circuit current interrupting rating as indicated. Enclosure type as indicated. Provide solid neutral.

2.15 MOTOR SHORT-CIRCUIT PROTECTOR (MSCP)

Motor short-circuit protectors, also called motor circuit protectors (MCPs): UL 508 and UL 489 , and provided as shown. Provide MSCPs that consist of an adjustable instantaneous trip circuit breaker used only in conjunction with a combination motor controller which provides coordinated motor branch-circuit overload and short-circuit protection. Rate MSCPs in accordance with the requirements of NFPA 70 .

2.16 TRANSFORMERS

Provide transformers in accordance with the following:

a. NEMA ST 20 , general purpose, dry-type, self-cooled, ventilated.

b. Provide transformers in NEMA 1 enclosure.

c. Transformer insulation system:

SECTION 26 20 00 Page 22

(1) 220 degrees C insulation system for transformers 15 kVA and greater, with temperature rise not exceeding 150 degrees C under full-rated load in maximum ambient of 40 degrees C.

(2) 180 degrees C insulation for transformers rated 10 kVA and less, with temperature rise not exceeding 150 degrees C under full-rated load in maximum ambient of 40 degrees C.

d. Transformer of 150 degrees C temperature rise: capable of carrying continuously 100 percent of nameplate kVA without exceeding insulation rating.

g. Transformers: quiet type with maximum sound level at least 3 decibels less than NEMA standard level for transformer ratings indicated.

2.16.1 Specified Transformer Efficiency

Transformers, indicated and specified with: 480V primary, 80 degrees C or 115 degrees C temperature rise, kVA ratings of 37.5 to 100 for single phase or 30 to 500 for three phase, energy efficient type. Minimum efficiency, based on factory test results: not be less than NEMA Class 1 efficiency as defined by 2016 US DOE standards.

2.16.2 Transformers With Non-Linear Loads

Provide transformers for non-linear loads in accordance with the following:

a. Transformer insulation: UL recognized 220 degrees C system. Neither the primary nor the secondary temperature is allowed to exceed 220 degrees C at any point in the coils while carrying their full rating of non-sinusoidal load.

b. Transformers are to be UL listed and labeled for K-Factor rating as indicated in accordance with UL 1561 .

c. Transformers evaluated by the UL K-Factor evaluation: listed for 115 degrees C average temperature rise only.

d. Transformers with K-Factor ratings with temperature rise of 150 degrees C rise are not acceptable.

e. K-Factor rated transformers impedance: allowed range of 3 percent to 5 percent, with a minimum reactance of 2 percent to prevent excessive neutral current when supplying loads with large amounts of third harmonic.

2.17 MOTORS

Provide motors in accordance with the following:

a. NEMA MG 1.

b. Hermetic-type sealed motor compressors: Also comply with UL 984 .

c. Provide the size in terms of HP, or kVA, or full-load current, or a combination of these characteristics, and other characteristics, of each motor as indicated or specified.

d. Determine specific motor characteristics to ensure provision of

SECTION 26 20 00 Page 23 correctly sized starters and overload heaters.

e. Rate motors for operation on 208-volt, 3-phase circuits with a terminal voltage rating of 200 volts, and those for operation on 480-volt, 3-phase circuits with a terminal voltage rating of 460 volts.

f. Use motors designed to operate at full capacity with voltage variation of plus or minus 10 percent of motor voltage rating.

g. Unless otherwise indicated, use continuous duty type motors if rated 1 HP and above.

h. Where fuse protection is specifically recommended by the equipment manufacturer, provide fused switches in lieu of non-fused switches indicated.

2.17.1 High Efficiency Single-Phase Motors

Single-phase fractional-horsepower alternating-current motors: high efficiency types corresponding to the applications listed in NEMA MG 11.

In exception, for motor-driven equipment with a minimum seasonal or overall efficiency rating, such as a SEER rating, provide equipment with motor to meet the overall system rating indicated.

2.17.2 Premium Efficiency Polyphase Motors

Select polyphase motors based on high efficiency characteristics relative to typical characteristics and applications as listed in NEMA MG 10. In addition, continuous rated, polyphase squirrel-cage medium induction motors must meet the requirements for premium efficiency electric motors in accordance with NEMA MG 1, including the NEMA full load efficiency ratings. In exception, for motor-driven equipment with a minimum seasonal or overall efficiency rating, such as a SEER rating, provide equipment with motor to meet the overall system rating indicated.

2.17.3 Motor Sizes

Provide size for duty to be performed, not exceeding the full-load nameplate current rating when driven equipment is operated at specified capacity under most severe conditions likely to be encountered. When motor size provided differs from size indicated or specified, make adjustments to wiring, disconnect devices, and branch circuit protection to accommodate equipment actually provided. Provide controllers for motors rated 1-hp and above with electronic phase-voltage monitors designed to protect motors from phase-loss, undervoltage, and overvoltage. Provide protection for motors from immediate restart by a time adjustable restart relay.

2.17.4 Wiring and Conduit

Provide internal wiring for components of packaged equipment as an integral part of the equipment. Provide power wiring and conduit for field-installed equipment, and motor control equipment forming part of motor control centers or switchgear assemblies, the conduit and wiring connecting such centers, assemblies, or other power sources to equipment as specified herein. Power wiring and conduit: conform to the requirements specified herein. Control wiring: provided under, and conform to, the requirements of the section specifying the associated

SECTION 26 20 00 Page 24 equipment.

2.18 MOTOR CONTROLLERS

Provide motor controllers in accordance with the following:

a. UL 508 , NEMA ICS 1 , and NEMA ICS 2 ,.

b. Provide controllers with thermal overload protection in each phase, and one spare normally open auxiliary contact, and one spare normally closed auxiliary contact.

c. Provide controllers for motors rated 1-hp and above with electronic phase-voltage monitors designed to protect motors from phase-loss, undervoltage, and overvoltage.

d. Provide protection for motors from immediate restart by a time adjustable restart relay.

e. When used with pressure, float, or similar automatic-type or maintained-contact switch, provide a hand/off/automatic selector switch with the controller.

f. Connections to selector switch: wired such that only normal automatic regulatory control devices are bypassed when switch is in "hand" position.

g. Safety control devices, such as low and high pressure cutouts, high temperature cutouts, and motor overload protective devices: connected in motor control circuit in "hand" and "automatic" positions.

h. Control circuit connections to hand/off/automatic selector switch or to more than one automatic regulatory control device: made in accordance with indicated or manufacturer's approved wiring diagram.

j. Provide a disconnecting means, capable of being locked in the open position, for the motor that is located in sight from the motor location and the driven machinery location. As an alternative, provide a motor controller disconnect, capable of being locked in the open position, to serve as the disconnecting means for the motor if it is in sight from the motor location and the driven machinery location.

l. Overload protective devices: provide adequate protection to motor windings; be thermal inverse-time-limit type; and include manual reset-type pushbutton on outside of motor controller case.

m. Cover of combination motor controller and manual switch or circuit breaker: interlocked with operating handle of switch or circuit breaker so that cover cannot be opened unless handle of switch or circuit breaker is in "off" position.

2.18.1 Control Wiring

Provide control wiring in accordance with the following:

a. All control wire: stranded tinned copper switchboard wire with 600-volt flame-retardant insulation Type SIS meeting UL 44 , or Type MTW meeting UL 1063 , and passing the VW-1 flame tests included in those standards.

SECTION 26 20 00 Page 25

b. Hinge wire: Class K stranding.

c. Current transformer secondary leads: not smaller than No.