Multiple Work locations and Single-Phase Grounding at Work Location

DOE-HDBK-1092-2004

7.5.6.2 MULTIPLE WORK LOCATIONS AND SINGLE-PHASE GROUNDING AT WORK

LOCATION

If work is to be performed at more than one place in a line section, the line section shall be

grounded at one location and the conductor be grounded at each work location to reduce the

potential voltage difference across the work site.

7.5.6.3 OTHER LOCATIONS

Grounds shall be placed at the work location or at each side of the work location and as close

as practical to it.

7.5.7

TESTING WITHOUT GROUNDS

Grounds may be temporarily removed when necessary for testing. Each employee shall use

insulating equipment and be isolated from any hazard involved. Additional measures may be

necessary to protect each exposed employee in case previously grounded lines or equipment

become energized.

7.5.8

GROUND PERSONNEL

In cases where ground rods or pole grounds are used for personal protective grounding,

personnel working on the ground shall either maintain a safe distance from such equipment or

use the appropriate equipment designed to prevent touch-and-step potential hazards. The term

"touch potential hazard" refers to the difference in voltage measured between the grounding

equipment and a worker in contact with the grounding equipment at the time it is accidentally

energized. The term "step potential hazard" refers to the difference in voltage measured

between each foot of the worker standing or walking in an electrical field created by high voltage

brought to earth.

7.6

INSTALLING OR REMOVING CONDUCTORS

Employees installing or removing conductors should follow certain guidelines to ensure safety.

7.6.1

WORKING ON ENERGIZED LINE OR EQUIPMENT

Employees working on energized lines or equipment should comply with the following:

1. Work on electrical equipment and circuits other than electrical utility lines and equipment,

operating a 50 V or more ground, should be worked on following the guidelines of Section 2

of the handbook.

2. Line or equipment carrying an ac voltage in excess of 600 V phase-to-phase should be

worked on with rubber gloves or live line tools. All other necessary protective devices such

as line hose, hoods, covers, sleeves, and rubber blankets should be used. (See Section

2.1.2).

3. Energized line should be worked on from below whenever possible. When working

energized line or equipment carrying 600 V or more to ground, there shall be two qualified

workers performing the work (see Section 2.1.2). Work shall not be performed on energized

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