WHAT IS AN ARC FLASH
An arc flash is the sudden release of electrical energy through the air when an arcing fault occurs between phase-to-phase, phase-to-neutral, or phase-to-ground conductors. An arc flash gives off thermal radiation (heat) and bright, intense light. Arc flash temperatures have been recorded as high as 19,500˚C. This extreme temperature melts and vaporizes metals and can ignite clothing and cause fatal burns as far as 3 meters away.