W9128A-19-R-0014_Am-0004_Specifications_-_Package_1.pdf

SECTION 26 20 00 Page 2 (Am-0004)

FY18 QUAD A REPAIR BLDG 131 & CONSTRUCT CENTRAL UTILITY PLANT QUADA1

2.8.1 Conductors

2.8.1.1 Minimum Conductor Sizes

2.8.2 Color Coding

2.8.2.1 Ground and Neutral Conductors

2.8.2.2 Ungrounded Conductors

2.8.3 Insulation

2.8.4 Bonding Conductors

2.8.4.1 Telecommunications Bonding Backbone (TBB)

2.8.4.2 Bonding Conductor for Telecommunications

2.8.5 Service Entrance Cables

2.9 SPLICES AND TERMINATION COMPONENTS

2.10 DEVICE PLATES

2.11 SWITCHES

2.11.1 Toggle Switches

2.11.2 Disconnect Switches

2.12 FUSES

2.12.1 Fuseholders

2.12.2 Cartridge Fuses, Current Limiting Type (Class R)

2.13 RECEPTACLES

2.13.1 Weatherproof Receptacles

2.13.2 Ground-Fault Circuit Interrupter Receptacles

2.13.3 Plugs

2.13.4 Range Receptacles

2.13.5 Dryer Receptacles

2.14 PANELBOARDS

2.14.1 Enclosure

2.14.2 Panelboard Buses

2.14.3 Circuit Breakers

2.14.3.1 Multipole Breakers

2.14.3.2 Circuit Breakers for HVAC Equipment

2.14.3.3 Arc-Fault Circuit Interrupters

2.15 ENCLOSED CIRCUIT BREAKERS

2.16 MOTOR SHORT-CIRCUIT PROTECTOR (MSCP)

2.17 TRANSFORMERS

2.17.1 Specified Transformer Efficiency

2.17.2 Transformers With Non-Linear Loads

2.17.3 Vibration Isolation

2.18 MOTORS

2.18.1 High Efficiency Single-Phase Motors

2.18.2 Premium Efficiency Polyphase Motors

2.18.3 Motor Sizes

2.18.4 Wiring and Conduit

2.19 MOTOR CONTROLLERS

2.19.1 Control Wiring

2.19.2 Control Circuit Terminal Blocks

2.19.2.1 Types of Terminal Blocks

2.19.3 Control Circuits

2.19.4 Enclosures for Motor Controllers

2.19.5 Multiple-Speed Motor Controllers and Reversible Motor

Controllers

2.19.6 Pushbutton Stations

2.19.7 Pilot and Indicating Lights

2.19.8 Reduced-Voltage Controllers

2.20 MANUAL MOTOR STARTERS (MOTOR RATED SWITCHES)

2.21 LOCKOUT REQUIREMENTS

2.22 TELECOMMUNICATIONS SYSTEM

2.23 COMMUNITY ANTENNA TELEVISION (CATV) SYSTEM

2.23.1 CATV Outlets

2.23.2 CATV Faceplates

2.23.3 Backboards

SECTION 26 20 00 Page 22 (Am-0004)

FY18 QUAD A REPAIR BLDG 131 & CONSTRUCT CENTRAL UTILITY PLANT QUADA1

2.17.2 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-4 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.

2.17.3 Vibration Isolation

Transformers without internal vibration isolation shall be provided with external vibration isolation consisting of neoprene waffle pads, captive rubber mounts, or such means as recommended by the transformer manufacturer. Size and install vibration isolation per manufacturer's recommendations.

2.18 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 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.

2.18.1 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