6 December 2006
Including change 1, 7 December 2006
untreated cotton. The current BDU and DCU are nylon-blend fabrics that melt when
exposed to high heat, which increases personal injury in the event of an electrical
accident. They are not permitted to be worn under NFPA 70E ATPV-rated protective
clothing, but are permitted when working on de-energized and electrically safe circuits
Personal protective equipment (PPE) that provides appropriate arc flash
protection is required for all personnel working on or near exposed energized electrical
equipment operating at 50 volts or more. Depending on the work location and activity,
these requirements might include but are not limited to the following types of workers:
Boiler plant operator or mechanic.
Electrical engineering technician.
Electronic industrial controls mechanic.
Electrical Power Controller (EPC).
Heating, ventilation, and air conditioning technician.
Industrial equipment mechanic.
Liquid oxygen maintenance personnel.
Low-voltage electrician .
Utility system workers.
4-4.1.1 Any worker whose normal job includes working on or near exposed electrical
equipment shall wear to work as a minimum: