That is the distance where a worker without wearing the appropriate level of personal protective equipment (PPE) would receive second degree burns. What are Arc Flash Boundaries?Īn arc flash boundary depends on the potential arc flash hazard and is calculated to 1.2 calories/cm2 of incident energy. Workers should know exactly where the arc flash boundary is and keep this safety measure in mind at all times. It is important to take the proper steps to ensure worker safety before taking any measurements, especially on energised equipment. Also known as a flash protection boundary, an arc flash boundary specifies the minimum safe distance from exposed energised conductors or circuit parts that have the potential for an arc flash event.
