等电位更换110kV双回线路直线铁塔绝缘子

On-line Replacing Insulator for 110 kV Tangent Tower with Double Circuit Line

针对110 kV线路小间距双回路垂直排列直线塔结构特点,论证了利用特制绝缘悬臂梯进入强电场等电位进行110ZGU1、110ZGU2型等双回路直线铁塔更换绝缘子串、更换附件、处理防振锤等工作的可行性,并介绍了相应的实施方法以及实用效果。完成了带电检修和消除缺陷的目的。彻底解决了110 kV小间距多回垂直排列塔无法进入等电位进行带电作业的难题。

According to structure characteristics of 110 kV tangent towers with small-distance double circuit transmission line,feasibility of on-line replacing of insulators for 110ZGU1 and 110ZGU2 tangent tower with insulated cantilever staircase was reasoned in this paper.Corresponding implementing steps and application effects were also introduced.The method given in this paper could complete on-line maintenance and eliminate defects,resolve problems for on-line working in equal potential for 110 kV tangent towers with small-distance double circuit transmission line.