Training of Safety Personnel - hdbk109220040029

DOE-HDBK-1092-2004

e. Work permit and work authorization procedures

Use and care of personal protective equipment

g. Proper clothing required for arc flash or arc blast protection

h. First-aid and CPR refresher training is recommended at intervals not to exceed 3 years

Standard for Electrical Safety in the Workplace (NFPA 70E) (2004)

29 CFR 1910.269(a) and 1910.332 also require training for persons other than qualified workers

if their job assignments bring them close enough to exposed parts of electrical circuits

operating at 50 V or more to ground for a hazard to exist.

2.8.2

TRAINING OF SAFETY PERSONNEL

Safety personnel designated to support electrical safety programs should be knowledgeable

and trained at levels commensurate with their duties.

2.9

WORKING SPACE AROUND ELECTRICAL EQUIPMENT

Working space around electrical enclosures or equipment shall be adequate for conducting all

anticipated maintenance and operations safely, including sufficient space to ensure safety of

personnel working during emergency conditions and workers rescuing injured personnel.

Spacing shall provide the dimensional clearance (discussed in the following subsections) for

personnel access to equipment likely to require examination, adjustment, servicing, or

maintenance while energized. Such equipment include panel boards, switches, circuit breakers,

switchgear, controllers, and controls on heating and air conditioning equipment.

These clearances shall be in accordance with NESC and NEC. These working clearances are

not required if the equipment is not likely to require examination, adjustment, servicing, or

maintenance while energized. However, sufficient access and working space is still required.

2.9.1

ELECTRICAL EQUIPMENT RATED AT 600 VOLTS OR LESS

NEC 110.26 states that a minimum working space 30 in. wide shall be provided in front of

electrical equipment rated at 600 V or less. This provides room to avoid body contact with

grounded parts while working with energized components of the equipment. The 30-in.-wide

space may be centered in front of the equipment or can be offset. The depth of the working

space shall be clear to the floor. Where rear access is required to work on deenergized parts, a

minimum of 30 inches shall be provided. There shall be clearance in the work area to allow at

least a 90-degree opening of equipment doors or hinged panels on the service equipment.

Working spaces may overlap. The depth of the working space shall be 3 ft, 3 1/2 ft, or 4 ft,

depending upon existing conditions. The conditions are as follows:

Condition 1: These are exposed live components on one side of a space and ungrounded parts

on the other side.

Condition 2: The electrical equipment is mounted or set on one wall, and the wall on the

opposite side is grounded. If the qualified worker should accidentally contact the conductive wall

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