Exposure level control of power frequency electric field near angle tower of 500kV transmission lines

4th International Conference on Advances in Energy Resources and Environment Engineering

能源学;生态环境科学

Huang, Mingxiang^1 ; Bian, Hongzhi^1 ; Lin, Yifu^1 ; Wang, Yifei^2 ; Yang, Dongyang^2

State Grid Fujian Electric Power Co. Ltd., Economic Technology Research Institute, Fuzhou, Fujian

350001, China^1

Key Laboratory of Control of Power Transmission and Conversion, Shanghai Jiao Tong University, Shanghai

200030, China^2

关键词: 500 kV transmission lines;    Chinese Standard;    EHV line;    Electric field simulation;    Exposure level;    Field measurement;    Power frequency electric field;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/237/6/062047/pdf
DOI  :  10.1088/1755-1315/237/6/062047

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

The distortion of power frequency electric field in the roof space near the angle tower of EHV line is serious, which is an important factor to be considered in transmission line planning and design. This paper establishes a three-dimensional electric field simulation model near the angle tower of 500 kV transmission line and verifies the validity of the simulation by field measurement. Based on this, the factors affecting the spatial electric field level on the roof of the house near the angle tower are analysed. Finally the control distance of the house near the angle tower is calculated according to the electric field exposure limitation in Chinese standards. The results show that the electric field near the transmission line is distorted and elevated by the house, and the electric field level of the roof decreases with the increase of the distance between the house and the line, and decreases with the decrease of the height of the house and the angle of the line.