Arc Incident Energy


The incident heat energy that an electric arc can produce is determined by the amount of the arc current, the duration of the arc, the distance between the worker and the arc and the configuration of the conductors and the surrounding environment.


In order to choose adequate protective clothing, the potential incident heat energy (in units of energy per square surface - cal/cm² or kJ/m2) caused by an electric arc and to which a worker may be exposed, needs to be calculated in a thorough risk assessment.