Analysis and Study on Safety Warning Distance of Human Body Near The Transmission Lines

International Conference on Manufacturing Technology, Materials and Chemical Engineering

机械制造;材料科学;化学工业

Tang, Guangrui^1

State Grid Energy Research Institute Co. Lit., Future Science City, Beiqijia, Changping District, Beijing, China^1

关键词: AC electric field;    Dc electric field;    Electric field distortions;    Industry standards;    Overhead transmission lines;    Safe distance;    Safety accidents;    Safety distances;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/392/6/062182/pdf
DOI  :  10.1088/1757-899X/392/6/062182

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

When new overhead transmission lines are built near live lines, they must be affected by the induced electricity generated by the nearby lines. Existing industry standards have stipulated such situations and proposed the safety distance that should be maintained during construction. However, there are still many occurrences of safety accidents or hidden dangers outside the safe distance. The article analyzes and studies the construction of human body under different live voltages with different types of towers (500kV cat head tower, 500kV wine glass tower, 500kV drum tower, ±800kV T tower, 1000kV drum tower, 1000kV wine glass tower). The specific situation of electric field distortion, combined with the 25kV/m DC electric field strength limit and the 10kV/m AC electric field strength limit set by the International Non-Ionizing Radiation Protection Committee, are calculated to give the safety warning distance of the human body in the vicinity of the live line.