Title :
Analysis of electrical aging effects of insulating tools for EHV live working
Author_Institution :
China Live Working Center, Northeast Electric Power Res. Inst., Shenyang, China
Abstract :
The recent explosion accidents of rigid insulating tools for EHV live workings are introduced and long-term electrical aging experiments of 500 kV insulating tools are carried out. Based on these results, the electrical aging breakdown model of long insulating tools under high electric fields is researched and new concepts of effective insulation length and safe use time of insulating tools for live working are also proposed
Keywords :
accidents; ageing; electric breakdown; explosions; insulation; maintenance engineering; poles and towers; power overhead lines; tools; 500 kV; EHV live working; accidents; breakdown model; electric fields; electrical aging; explosion; insulation length; rigid insulating tools; safe use time; Accidents; Aging; Breakdown voltage; Dielectrics and electrical insulation; Electric breakdown; Electrical safety; Helicopters; Robots; Testing; Umbilical cable;
Conference_Titel :
Transmission and Distribution Construction and Live Line Maintenance, 1993. Proceedings from ESMO-93., Sixth International Conference on
Conference_Location :
Las Vegas, NV
Print_ISBN :
0-7803-1340-2
DOI :
10.1109/TDCLLM.1993.316233
