中压配电网架空线防雷措施分析

Analysis of Lightning Protection Measures for Overhead Lines in Medium Voltage Distribution Network

目前在城市配电建设中,多采用架空导线绝缘装置,能够减少外界对线路的影响,达到高效供电的效果。尽管配电网的架空绝缘化已经趋于完善,却依然无法完全避免雷击断线事故的发生。一旦发生雷击断线事故,轻则停电影响到人们日常生活及工厂生产,重则引起火灾漏电,导致财产及人员生命受到严重威胁,为了减少用电安全事故的发生,降低用电风险,有必要对中压配电网架空线的防雷措施进行探讨。本文通过分析雷击断电原理,总结出中压配电网架空线的防雷方法。

In the current urban power distribution construction,overhead wire insulation is used,which can reduce the influence of the outside on the line and achieve the effect of efficient power supply.Although the overhead insulation of the distribution network has been perfected,it is still impossible to completely avoid the occurrence of lightning strikes.In the event of a lightning strike accident, the power outage affects people’s daily life and factory production,but also causes fire leakage,which causes serious threats to property and personnel.In order to reduce the occurrence of power safety accidents and reduce the risk of electricity use,it is necessary.In view of the lightning protection measures for the overhead line of medium voltage distribution network,this paper summarizes the lightning protection method for the overhead line of medium voltage distribution network by analyzing the principle of lightning strike.