NFPA 70E
(NFPA) 70E is a comprehensive standard that establishes best electrical safety practices standards on how to protect electricians from electric arc flash and arc blast exposure and resulting potential injury and death. OSHA has referenced this electrical safety standard in numerous cases. In fact, many organizations have now designed an NFPA 70E Compliance Guide to help protect their electrical personnel from the hazards associated with arc flash.
OSHA adopted regulations on safe electrical work practices in 1990 based on NFPA 70E, and is proposing a revised standard that conforms to the most recent editions of NFPA 70E. Given that the NEC (National Electrical Code) and OSHA have both started referring to it in their documents, citations are now being written based on NFPA 70E.
NFPA 70e applies to employees who work on or near exposed energized electrical conductors or circuit parts. This includes electrical maintenance personnel, operators, troubleshooters, electricians, linemen, engineers, supervisors, site safety personnel or anyone exposed to energized equipment of 50 volts or more.