The standard defines the requirements for protection against thermal risks related to electric arcing, to avoid the risk of second-degree burns. There are currently two methods of classification – the Arc Protection Class (APC) and the Arc Thermal Performance Value (ATPV).
EN ISO 11611
The standard determines the classes of protection against welding hazards such as protection against heat, contact with a flame or small molten metal spatter.
The standard, issued by the National Fire Protection Association (NFPA), classifies PPE for protection against the thermal effects of arcing into 4 categories, using ASTM F1959 – test standard, and ASTM F1506 – product standard.
The standard characterises protective constraints relating to electrostatic dissipation used in conjunction with a grounding system to prevent incendiary discharges.