Other than high voltage shock, an arc flash and blast event is one of the most horrific electrical accidents a person can experience. When an arc flash occurs, temperatures in arc plasma can reach up to 10,000˚F. In addition, there is the accompanying pressure wave, intense light and sound, flying molten metal, and shrapnel.
An arc flash is a high-amp current that jumps through the air. It occurs when the path of the electric current is interrupted, causing the current to flow through the air to a new conductor or to ground, causing a very bright flash of light.