Service Conditions

DOE-HDBK-1092-2004

8.1.10.1

SERVICE CONDUCTORS

Service conductors shall comply with all the provisions of Article 230 in the NEC when they are

used as wiring methods to supply temporary power systems.

8.1.10.2

FEEDER CONDUCTORS

Feeders are the conductors that transmit power from the service equipment to the distribution

panelboard or between the main disconnect and the branch circuit over current devices (circuit

breakers, fuses). Feeders for temporary wiring shall originate inside an approved distribution

center, such as a panel board, that is rated for the voltages and currents the system is expected

to carry. Some equipment is manufactured specifically for temporary use.

Feeders can be run as cable assemblies, multiconductor cords, or cables with two or more

conductors each with their own insulations, run together in the same cord or cable.

8.1.10.3

BRANCH CIRCUIT CONDUCTORS

Branch circuits are the conductors between the last overcurrent device in an electrical system

and the outlets, such as receptacles, lighting outlets, and outlets for electrical equipment wired

directly into a circuit. Branch circuits for temporary wiring shall originate inside an approved

panelboard or power outlet that is rated for the voltages and currents the system is expected to

carry. As with feeders, branch circuit conductors can be contained within multiconductor cord or

cable assemblies.

8.1.10.4

NONMETALLIC SHEATHED CABLE

Nonmetallic sheathed cable shall be used as allowed by the NEC and as follows:

1. Along studs, joists, or similar supports closely following the building finish or running boards

when 7 feet 8 inches or more above the floor

2. When firmly attached to each cabinet, box, fitting, or fixture by means of a cable clamp.

Nonmetallic sheathed cable shall not be used where precluded by the NEC as follows:

1. As portable extension cords

2. Lying on the ground subject to any type of traffic

3. Where subject to frequent flexing

4. As service entrance cable.

8.2

USING ASSURED EQUIPMENT GROUNDING CONDUCTOR

PROGRAM

Where GFCI devices are not used (See Section 2.7), the employer shall establish and

implement an assured equipment grounding conductor program on construction sites covering

all cord sets, receptacles that are not a part of the building or structure, and equipment

8-3