Observation of lightning performance on distribution line by still cameras

摘要

The lightning faults of power distribution lines are caused by nearby lightning stroke and direct lightning stroke and so on [1]. In order to obtain better lightning protection measures for distribution lines, it is important to clarify the causes of the lightning damages. As observations of appearance of lightning stroke on distribution lines have been made using still cameras since May 1999, we report the results of photographs of lightning strokes on and near a middle-voltage power distribution line, and side flashes on the distribution line.