Arc flash is one of the most dangerous and costly hazards in the workplace today. Most often, when there is an arc flash hazard there is also a shock hazard, so dielectric protection when working on or near energized lines and equipment must be an integral component of the required personal protective equipment. The following procedures can help protect workers against arc flash and shock when used and followed correctly.
Rubber insulating products such as gloves, blankets, sleeves, line hoses and hoods used by electrical workers today are manufactured in accordance with industry consensus specifications under the auspices of the ASTM, the American Society for Testing and Materials. These ASTM standard specifications are referenced in the OSHA regulations dealing with electrical safety, specifically 29CFR1910.137 covering Electrical Protective Devices, and 29CFR1910.269 covering Electric Power Generation, Transmission and Distribution.