Conduit

DOE-HDBK-1092-2004

8.1.5

CONDUIT

Temporary wiring installed in conduit shall have bushings at all outlets and terminals to prevent

abrasion and damage to the insulation.

8.1.6

LIGHTING

All lamps for general illumination should be protected from accidental contact or breakage.

Metal-case sockets shall be grounded.

Temporary lights shall not be suspended by their electric cords unless cords and lights are

designed for this means of suspension. Temporary lighting used in damp, wet, or hazardous

areas shall be marked as suitable for use in those locations.

Portable electric lighting used in wet or other conductive locations (for example, drums, tanks,

and vessels) shall be operated at 12V or less. However, 120-V lights may be used if protected

by a GFCI.

Receptacles on construction sites shall not be installed on branch circuits that supply temporary

lighting.

8.1.7

CONFINED SPACES

When temporary wiring is used in tanks or other confined spaces, an approved disconnecting

means (identified and marked) shall be provided at or near the entrance to such spaces for

cutting off the power supply in emergencies.

Portable electric lighting used in confined wet or hazardous locations such as drums, tanks,

vessels, and grease pits shall be operated at a maximum of 12 V, be intrinsically safe, or be

protected by a GFCI circuit.

8.1.8

EXPOSED SOCKETS AND BROKEN BULBS

Exposed empty light sockets and broken bulbs shall not be permitted. This rule is to protect

personnel from accidentally contacting the live parts in the socket and being shocked.

8.1.9

GROUND FAULT PROTECTION FOR PERSONNEL

Temporary power to equipment used by personnel shall be protected by GFCI devices, where

required, or included in an assured equipment grounding conductor program, where

permissible. See NEC 527 and NFPA 70E Chapter 4 for further information.

8.1.10 WIRING METHODS

The requirements for temporary wiring for power and lighting purposes include provisions for

wire connections, junction boxes, and overcurrent protection, as well as the use of conductors.

See NEC 527.

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