Simulation study on transient electric shock characteristics of human body under high voltage ac transmission lines

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

Huang, Tao^1,2 ; Zou, Yanhui^1,2 ; Lv, Jianhong^1 ; Yang, Jinchun^1 ; Tao, Li^1 ; Zhou, Jianfei^1

Electric Power Research Institute of State Grid Hunan Electric Power Company, Changsha

410007, China^1

Hunan Xiangdian Test and Research Institute. CO. LTD, Changsha

410007, China^2

关键词: AC transmission lines;    Contact currents;    Design specification;    Discharge currents;    Electric field strength;    Electrostatic induction;    Residential areas;    Simulation studies;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/231/1/012051/pdf
DOI  :  10.1088/1757-899X/231/1/012051

来源: IOP

【 摘 要 】

Human body under high-voltage AC transmission lines will produce a certain induced voltage due to the electrostatic induction. When the human body contacts with some grounded objects, the charges transfer from the body to the ground and produce contact current which may cause transient electric shock. Using CDEGS and ATP/EMTP, the paper proposes a method for quantitatively calculating the transient electric shock characteristics. It calculates the human body voltage, discharge current and discharge energy under certain 500kV compact-type transmission lines and predicts the corresponding human feelings. The results show that the average root value of discharge current is less than 10mA when the human body is under the 500kV compact-type transmission lines and the human body is overall safe if the transmission lines satisfy the relevant design specifications. It concludes that the electric field strength above the ground should be limited to 4kV/m through the residential area for the purpose of reducing the electromagnetic impact.