Analysis and Lightning Protection Measures of the Lightning Strike Fault of 35 kV Distribution Line in a Coal Mine
Zheng Hui1, Shang Yujing2, Li Jiming1, Deng Jiewen1, Man Chaonan1
1.College of Electrical & Information Engineering, Changsha University of Science and Technology, Changsha 410076; 2. Zhuhai Electric Power Design Institute, Zhuhai, Guangdong 519000
Abstract：Mountain lightning activity, is the leading cause of 35kV distribution line fault is one of the important reasons. In this paper, substation incoming line in a coal mine in Shanxi is hit by lightning, lightning surge invasion substation insulation equipment damage of the typical accident, are analyzed and discussed. Through field investigation and test, analysis shows that the line lightning protection measure is undeserved, grounding resistance of substation incoming line is too high, line and distribution equipment insulation coordination is improper and the mountainous geography is the main cause leading to the accident. In view of the above situation this paper presented some improvement measures such as to remove unreasonable lightning protection equipment, to reduce the ground resistance of towers, arranged lightning protection for incoming line and some other measures, so as to improve the mining lightning protection level, to ensure personnel and property safety in mining area.
郑晖, 尚育晶, 李既明, 邓杰文, 满超楠. 矿区35kV配电线路雷害事故分析与防雷措施[J]. 电气技术, 2013, 14(01): 57-61.
Zheng Hui, Shang Yujing, Li Jiming, Deng Jiewen, Man Chaonan. Analysis and Lightning Protection Measures of the Lightning Strike Fault of 35 kV Distribution Line in a Coal Mine . Electrical Engineering, 2013, 14(01): 57-61.
2013, Vol. 14 
