Research on electric field distribution of UHVDC transmission lines and body surface during live working

2017 2nd International Seminar on Advances in Materials Science and Engineering

Jiang, Chilong^1 ; Zou, Dehua^1 ; Li, Jinliang^1 ; Zhang, Zhanlong^2 ; Mei, Daojun^2

Hunan Live Working Center of State Grid, Xingsha Economic and Technology, District Changsha, HUNAN

410100, China^1

State Key Laboratory of Power Transmission Equipment and System Security and New Technology, Chongqing University, Shapingba District Chongqing

400030, China^2

关键词: Body surface;    Electric field distortions;    Electric field distributions;    Ground potential;    Live working;    Tower models;    UHVDC transmission lines;    Ultra high voltage direct current;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/231/1/012004/pdf
DOI  :  10.1088/1757-899X/231/1/012004

来源: IOP

【 摘 要 】

Electric field distortion emerges around personnel working on live Ultra High Voltage Direct Current UHVDC transmission lines, especially when they move from ground-potential to equipotential positions. Unreliable protection threatens the safety of both workers and transmission lines. The current study investigates the electric field distribution of body surface during live working under transmission lines. To provide safety advice, live working person and tower models were established. The body surface field was calculated in different positions under 800 kV transmission lines, and the distribution of the electric field was summarized.