Protection Method of Biological Lightning Safety around Power Grid Based on Grounding Electrode Structure

[摘要] Aimed at the actual situation of fish death in fish ponds near the power transmission line towers after the thunderstorm happened in Guangdong Province in China, this paper studied the influence of the ground current on fish in the pond. Firstly, This paper studied the current density of the fish without protection. On this basis, paper studied the horizontal pole with full-shielded, the vertical pole with half-shielded, the horizontal pole with extension three kinds of protective measures and effects. Finally an effective protection scheme was put forward according to the engineering practice. The results can provide some engineering guidance and quantitative basis for the design and modification of grounding devices when the tower is adjacent to the fish ponds in southern China.

[发布机构] Guangdong Power Grid Limited Liability Company, Foshan Power Supply Bureau, Foshan; 528000, China^1;School of Electric Engineering, Southwest Jiaotong University, Chengdu; 610031, China^2

[效力级别] 电工学

[关键词] Engineering practices;Ground currents;Grounding device;Guangdong Province;Protection methods;Protection schemes;Protective measures;Southern China