Live Working on EHV/UHV Transmission Lines

Abstract

With the rapid development of power grid in China,the EHV/UHV transmission lines have been constructed.In order to provide a technical support for live working on the lines,according to the characteristics of 750kV,1 000kV AC and±660kV,±800kV DC transmission lines,the key technical parameters of live working were obtained by experiments and theoretical calculation,the safety protective principle of operating personnel was determined and the large tonnage lifting insulating tools and insulator holder were developed.Meanwhile,based on the research results,the rules and guidelines of the EHV/UHV transmission line live working were formulated,and the success of the on-site application proved that live working on EHV/UHV transmission lines was safe and feasible.The research achievements in the technology of live working on EHV/UHV transmission lines can effectively direct safe implementation of live working.