500kV及220kV同塔四回线路检修作业方法

The Maintenance Method of 500kV and 220kV Four-circuit Transmission Lines

针对同塔四回线路铁塔相对较高、导线布置相对复杂、电场畸变严重等实际情况,进行了电场测量和检修感应电压的计算,对其检修作业方法进行了研究,建议采用带电作业或者停电检修两种方式进行检修,提出了相应的保护措施。

According to the higher tower, the more complex line arrangement, the more intense electric field distortion in four-circuit transmission lines, we measured the electric field and calculated induced voltage in maintained linesand researched the maintenance method on the four-circuit transmission lines. Living working and reparation in power cut is suggested, and corresponding protections are presented in this work.