| Lightning is an important factor that triggers the 10 kV overhead distribution line accident, relative to the basin and plain, mountain suffered a higher frequency of lightning. This article is located in the Taihang Mountains Tangxian County" in the distribution line as the research object, through a comprehensive analysis of the record area of distribution line in recent years the operation, maintenance and fault, find out the existing lightning protection measures of mountain distribution network defects. Through analysis and comparison of different methods of lightning protection, lightning protection method, to find a suitable and effective local area, and to provide reference for the pilot, the lightning protection work of the whole distribution network in Taihang Mountain area.In this paper, firstly, the development stage and the lightning parameters are analyzed. And the overvoltage and lightning of lightning overvoltage is analyzed. A comprehensive analysis of the causes of the accidents caused by lightning is made according to the actual situation. And for the cause of the accident, the corresponding improvement measures are put forward, which mainly include: improving the level of line insulation, the use of coupling ground wire and lightning arrester, reducing grounding resistance, strengthening the management of equipment maintenance management and other systematic measures. And combined with the local lightning protection engineering, the proposed measures are verified. |
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