Arc Flash is an electrical failure when coming into contact with air that causes it to explode. It can produce light and heat with temperatures as high as 2,800 to 19,000 °C, about 4 times the surface temperature of the sun. The high temperature of the instant explosion can melt even metal, not to mention human skin, and cause lung and vision damage. Workwear made of arc flash protection fabric is your last defense in a crisis.