配网架空线路防雷措施

广东省雷暴发生频率位于全国第二,雷电灾害性天气频繁,雷击对导致配网架空线路跳闸的主要原因,严重制约着供电可靠性,文章从配网雷害产生的机理及其影响因素,并从架设避雷线、安装避雷器和过电压保护器、中压架空线路防雷接地要求等方面总结分析配网线路防雷措施。

The frequency of thunderstorm in Guangdong Province is the second in the whole country,the lightning disaster weather is frequent,the main reason that the lightning strike causes the overhead line trip of the distribution network,restrict the re liability of the power supply seriously.This paper introduces the mechanism of the lightning disaster of the distribution network and its influence factors.The lightning protection measures for distribution network lines are summarized and analyzed from the aspects of setting up lightning wires,installing lightning arresters and over-voltage protectors,and the requirements for lightning protection and grounding of medium-voltage overhead lines.