Personnel surface electric field research of live working on insulation bucket arm car of 500-kV transmission lines

Abstract

In order to improve the reliability and security of electricity supply and to increase the live working efficiency, a strong measure which improves the reliability of power supply is using insulated bucket arm car as work platform in live working of transmission line. With the purpose of assessing the security impact in which 500-kV transmission lines exert on a person who is using an insulated bucket arm car for live working, methods of electric field finite element calculation and electric field measurement are adopted to research the distribution law of person’s surface electric field in different working conditions. This article aims at the characteristics of live line work mode of 500-kV transmission line and uses the method of finite element calculation to study on the surface electric field distribution law of worker who is developing live working on an insulation bucket arm vehicle. Considering with the characteristics of insulation bucket arm vehicle and electric transmission line operation, we systemically proposed live working safety protection method about using insulation bucket arm vehicle in 500-kV transmission line.