Specifications

SVI Trucks

Freightliner 4-Door Demo

SVI #917 01/05/15

Wiring System Components

Only stranded copper conductors with an insulation rated for temperatures of at least 194°F (90°C) and wet

locations shall be used. Conductors in flexible cord shall be sized in accordance with Table 400.5(A) of NFPA 70.

Conductors used in conduit shall be sized in accordance with 310.15, “Ampacities for Conductors Rated 0–2000

Volts,” of NFPA 70. Aluminum or copper-clad aluminum conductors shall not be used.

All boxes shall conform to and be mounted in accordance with Article 314, “Outlet, Device, Pull, and Junction

Boxes; Conduit Bodies; Fittings; and Manholes,” of NFPA 70. All boxes shall be accessible using ordinary hand

tools. Boxes shall not be permitted behind welded or pop-riveted panels.

The maximum number of conductors permitted in any box shall be in accordance with 314.16, “Number of

Conductors in Outlet, Device, and Junction Boxes, and Conduit Bodies,” of NFPA 70.

All wiring connections and terminations shall provide a positive mechanical and electrical connection. Connectors

shall be installed in accordance with the manufacturer’s instructions. Wire nuts or insulation displacement and

insulation piercing connectors shall not be used.

Each switch shall indicate the position of its contact points (i.e., open or closed) and shall be rated for the

continuous operation of the load being controlled. All switches shall be marked with a label indicating the function

of the switch. Circuit breakers used as switches shall be “switch rated” (SWD) or better. Switches shall

simultaneously open all associated line voltage conductors. Switching of the neutral conductor alone shall not be

permitted.

Line voltage circuits controlled by low voltage circuits shall be wired through properly rated relays in listed

enclosures that control all non-grounded current-carrying conductors.

Receptacles and Inlet Devices

Wet and Dry Locations

All wet location receptacle outlets and inlet devices, including those on hardwired, remote power distribution

boxes, shall be of the grounding type, provided with a wet location cover, and installed in accordance with Section

406.8, “Receptacles in Damp or Wet Locations,” of NFPA 70.

All receptacles located in a wet location shall be not less than 24 in. (600 mm) from the ground. Receptacles on

off road fire apparatus shall be a minimum of 30 in. (750 mm) from the ground. All receptacles located in a dry

location shall be of the grounding type and shall be at least 12 in. (300 mm) above the interior floor height. No

receptacle shall be installed in a face-up position.

The face of any wet location receptacle shall be installed in a plane from vertical to not more than 45 degrees off

vertical.

Receptacle Label

Each receptacle shall be marked with a label indicating the nominal line voltage (120 volts or 240 volts) and the

current rating in amps of the circuit. If the receptacle is DC or other than single phase, that information shall also

be marked on the label.

All receptacles and electrical inlet devices shall be listed to UL 498, Standard for Safety Attachment Plugs and

Receptacles, or other recognized performance standards.

Receptacles used for DC voltages shall be rated for DC service.