500kV线路架空避雷线雷击损伤后抢修维护方法  

Maintenance method for earth wire of 500 kV power transmission line after heavy damage by lightning stroke

作　　者：吴建军[1] 李玉宝 段文运[1] 陈春强 李宁[1] 崔海龙 赵青 

机构地区：[1]华北电网有限公司北京超高压公司,北京102401

出　　处：《中国电力》2009年第5期64-67,共4页Electric Power

摘　　要：针对北京超高压公司负责运行维护的华北地区500kV输电线路中,近年来多次发生的架空地线、光纤复合架空地线(OPGW)遭受雷击后,造成的避雷线本体断股损伤或断线事故,以及OPGW损伤或纤芯损伤造成保护通信中断等进行了介绍,并对避雷线损伤原因进行了分析和判定;对不同材质的镀锌钢绞线、铝合金绞线及OPGW发生不同损伤情况下的修复工作标准和工艺流程进行了详细介绍。按避雷线不同的损伤程度和线路抢修条件等分别对不停电飞车出线修复法、停电落线借助线路边导线修复法、停电换线法等具体抢修方法、方案的制订和选择原则等进行了阐述。According to the faults of earth wire and OPGW damage by lightning stroke occurred in 500 kV power transmission in North China in recent years, the reasons for earth wire damage, were analyzed, and the standards for repairing and technical process flow about different damage of twisted line and OPGW were introduced. And according to different damaged levels and different situation of line inspection, how to choose the method of inspection of outgoing line with electricity, dropping line without electricity and changing line without electricity was also introduced.

关 键 词：500kV 输电线路 光纤复合架空地线(OPGW) 严重损伤 检修工艺标准 操作方法 

分 类 号：TM862[电气工程—高电压与绝缘技术]