Flame Resistant (FR) clothing without an arc rating has not been tested for exposure to an electric arc. Due to the misuse of the term FR, NFPA E removed the term favoring arc ratedView our video for more information from Scott Margolin, Vice President of Technical at Tyndale and recognized industry expert.

NFPA E, Standard for Electrical Safety in the Workplace states that the employer must provide arc rated clothing for potential arc flash hazards in any area that is not regulated by OSHAThis includes commercial, industrial, and residential construction workplaces.

Therefore, all ARC must have an Arc Thermal Performance Value (ATPV) rating for woven fabrics or an Energy Breakdown Threshold (EBT) rating for knit fabrics and shown on the labelBoth of these are given in cal cm [] Since JM Test Systems deals with electrical safety, for simplicity, this article will only refer to arc resistant clothing