By analyzing the searching methods of the trip faults of the transmission line caused by lightning strokes in Bishan Power Supply Bureau in recent years, this essay suggests adopting the "Fixing One Point with Three Dimen- sions" method to reduce the searching time as well as to increase both economic and social benefits of power supply enterprises.%分析重庆璧山供电局近年来输电线路雷击跳闸故障的查找方法,提出采用＂三维定一点＂工作法,可有效缩短输电线路雷击跳闸故障查找时间,并增强供电企业的经济效益和社会效益。
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