The electric arc is an electrical hazard with the possibility of occurring, to a greater or lesser degree, in energized systems, thus becoming an electrical risk. This phenomenon causes the release of a large amount of energy, and its thermal effects are quite expressive. From the quantification of this energy, personal protection strategies applicable to the worker who will intervene in this type of scenario are chosen. The present work exposes the definition of these strategies for a hypothetical situation of intervention in an overhead distribution grid with the occurrence of an electrical arc caused by a three-phase fault. This choice is made from the incident energy estimate, using the IEEE Std 1584-2018 method, and the use of the NFPA 70E-2021 standard to direct applicable personal protection strategies.