Method for determining a safety distance free of harmful electrical shock for electrical or electronic equipment connected to a low voltage network in the sight of a ray (Machine-translation by Google Translate, not legally binding)

摘要

Method to determine a safe distance free of harmful electrical disturbances for electrical or electronic equipment connected to a low voltage network in the event of lightning strikes. The present invention relates to a method for determining a safe distance free from harmful electrical disturbances for electrical or electronic equipment connected to a low voltage network in the event of a lightning strike. The method is characterized because it comprises the steps of: obtaining coordinates of latitude and longitude of the place where the equipment is located, said place is the center of coordinates; obtain a list of the rays recorded around the center of coordinates; calculate a geographical distance between each ray and the center of coordinates, thus determining a target area around the center of coordinates; establish the density of receiving charges and the type of electrical distribution lines that prevail in the target area; establish a minimum level of transient overvoltage peak that if exceeded is considered potentially harmful for the receiver equipment located at the origin of coordinates; and calculate a critical radial distance with center in each ray such that if the geographical distance is less than the critical distance for any ray of the list, then said ray is potentially causing an electrical loss in the center of coordinates. (Machine-translation by Google Translate, not legally binding)