Quality of the supplied electric service: A tool to evaluate the need of protection against lightning surges

This contribution intends to give a tool to evaluate the need of protection against transient overvoltages due to flashes to and nearby the power lines connected to a structure in order to ensure the quality of the supplied electric service with references to the impulsive surges transmitted to the user.The proposed method is based on the risk for persons as well as for electrical and electronic systems in the served structure, evaluated according to the standard IEC 62305-2 Ed 2.0.