Clothing that protects against the thermal hazards of an electric arc. IEC 61482-2 certification involves two test methods. The first test method (open electric arc) tests the fabric and garment in order to determine the ATPV/EBT value of the clothing. The second method (box test) determines the electric arc protection class of the fabric and the garment through the use of a forced and controlled electric arc. There are two different classes, with class 2 being the highest and offering the best protection.