带电更换LF型联板耐张双串绝缘子卡具研制  

Development of a Clamp for Replacing LF Type Tension Double String Insulators With Electricity

作　　者：李国彬 付进 杨恩 郑博文 唐琛 李胜康 孙晨曦 Li Guobin;Fu Jin;Yang En;Zheng Bowen;Tang Chen;Li Shengkang;Sun Chenxi(Yunnan Power Grid Co.,Ltd.,Dali Power Supply Bureau,Dali 671000,Yunnan,China)

机构地区：[1]云南电网有限责任公司大理供电局,云南大理671000

出　　处：《云南电力技术》2024年第5期53-56,共4页Yunnan Electric Power

摘　　要：近年来,随着输电线路不断增加,而在运线路又地处山区及多雷区,所用绝缘子大多为玻璃和瓷质绝缘子,雷击率和自爆率相对较高。考虑到供电可靠性和电网安全运行,需要开展带电更换耐张双串绝缘子串的工作。但由于制造工艺、厂家、施工质量等原因,存在许多尺寸不规范金具安装在线路上,造成与之配套的联板型号各异。目前常规带电卡具只适用大部分连板,部分耐张双串绝缘子串由于联板不同,无法进行带电更换,存在作业人员体力消耗大、工作效率低、作业风险高等不利因素,从而影响输电线路带电检修效率及可靠性。本文主要阐述带电更换双串耐张绝缘子串的通用卡具及作业方法,有利于便捷、高效、安全地进行带电更换耐张双串绝缘子和单片绝缘子。In recent years,with the increasing number of transmission lines and the fact that the operating lines are located in mountainous and thunderstorm prone areas,most of the insulators used are glass and porcelain insulators,resulting in relatively high lightning strike and self explosion rates.Considering the reliability of power supply and the safe operation of the power grid,it is necessary to carry out live replacement of tension resistant double insulator strings.However,due to manufacturing processes,manufacturers,construction quality,and other reasons,there are many non-standard sizefittings installed on the circuit,resulting in different types of connecting plates that match them.At present,conventional live clamps are only suitable for most connecting plates,and some tension resistant double string insulator strings cannot be replaced with live wires due to different connecting plates,which poses disadvantages such as high physical consumption,low work efficiency,and high operational risks for operators,thereby affecting the efficiency and reliability of live maintenance of transmission lines.This article mainly elaborates on the universalfixtures and operation methods for replacing double string tension insulators with live electricity,which is conducive to convenient,efficient,and safe replacement of tension double string insulators and single piece insulators with live electricity.

关 键 词：输电线路 带电检修 卡具研制 

分 类 号：TM74[电气工程—电力系统及自动化]