What garment CAT rating do you require to keep your employees safe in the workplace? Flame resistant clothing will minimize burn injury and provide the worker a few seconds escape time. ATPV : 8.9 CAT 1 CAT 2 CAT 3 CAT 4 ATPV : 8.9 CAT 1 Slick’s Tips: CAT 2 CAT 3 ATPV : 8.9 CAT 1 CAT 3 CAT 4 CAT 2
CAT 2
ATPV : 8.9 CAT 1
CAT 4
Canadian Electrical Standards (CSA-Z462) National Fire Protection Association (NFPA 70E) CAT stands for Hazard Risk Category (measured in ATPV). It indicates the respective hazard/risk category (HRC) associated with each task. CAT 3 CAT 4
= ATPV between 4-7 cal/cm 2
Arc Thermal Protection Value (ATPV). The higher the arc rating the better the protecion against electric arc
= ATPV between 25-39 cal/cm 2 = ATPV 40 cal/cm 2 or more = ATPV between 8-24 cal/cm 2
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