Experimental Study of Side Flash Using Lightning Impulse Voltage

Abstract

Side flash is one of the most important problems of human damages by lightning. Though several guidelines state that you should not be near a tree when thunderstorm activity is high, little is known about the necessary clearance quantitatively. There was a statement that more than 2 meters is needed to avoid side flash, but neither theoretical nor experimental verification of the statement has been carried out. This paper describes the experimental results on side flash using lightning impulse voltages.