Avoiding tripping accident caused by lightning striking power lines is a guar-antee to power supply safety and reliability. Through analysis of the striking types, channels and judgment methods of lightning, the paper explored lightning prevention measures for power supply lines.%避免雷击输电线路引起的跳闸事故是安全可靠供电的保证,通过分析雷电的侵入类型、通道及判别方法,探索了输电线路的防雷技术措施.
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