摘要
为了减少雷击对输电线路的伤害,将线路避雷器安装在输电线路的易击段,可以提高线路的耐雷水平。鉴此,介绍了线路避雷器防雷的基本原理和安装前的准备工作。并对近年来肇庆四会供电分公司部分已挂网运行的避雷器进行了跟踪分析,原多雷击杆塔自从加装了线路带串联间隙避雷器后,迄今杆塔未发生雷击跳闸。
To reduce the harm of lightning strokes to transmission lines,line arrestors can be installed on susceptible sections t to improve the lightning withstand level of lines.In this paper,the basic principles of lightning protection by line arrestors and preparations for installation are described.A tracking analysis is made on some inservice arrestors of Zhaoqing Sihui Power Supply Branch.Since the installation of line arresters with serial gaps,no tripout failures due to lightning strokes have ever happened on the susceptible towers.
出处
《广东电力》
2003年第4期53-55,共3页
Guangdong Electric Power
关键词
输电线路
防雷
线路避雷器
避雷线
绝缘材料
绝缘子
杆塔
lightning arresters for transmission lines
transmission line
pole and tower
lightning stroke
