| 湘西山区架空送电线路的雷害原因及防雷措施探讨 |
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| 引用本文： | 张雄伟. 湘西山区架空送电线路的雷害原因及防雷措施探讨[J]. 电瓷避雷器, 2004, 0(5): 43-45 |
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| 作者姓名： | 张雄伟 |
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| 作者单位： | 湘西电业局线路管理所,湖南,邵东,416000 |
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| 摘 要： | 湘西山区雷电活动剧烈,线路耐雷水平又相对偏低,雷击跳闸率高。运行经验表明:设计时应考虑山坡对保护角的影响,同时加强接地网的改造;在多雷区段加装线路金属氧化物避雷器;35kV线路进行铁横担接地并布设接地网。以上措施可有效地提高线路耐雷水平。
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| 关 键 词： | 送电线路 跳闸率 雷害原因 防雷措施 |
| 文章编号： | 1003-8337(2004)05-0043-03 |
| 修稿时间： | 2004-07-28 |
Approach in the Cause of Thunderstroke Damages on Overhead Line in Xiangxi Mountainous Areas and the Countermeasures Against Thunder-protection |
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| ZHANG Xiong-wei. Approach in the Cause of Thunderstroke Damages on Overhead Line in Xiangxi Mountainous Areas and the Countermeasures Against Thunder-protection[J]. Insulators and Surge Arresters, 2004, 0(5): 43-45 |
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| Authors: | ZHANG Xiong-wei |
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| Abstract: | The thunderstrokes in Xiangxi mountainous areas are intense,accordingly,the strip-out rate from thunderstroke is very high.From experience,we have several effective methods to improve the thunder-protection level of line.The effective measures for improving the thunderstroke resistance level are as follows,considering the influence of the protective angle of the hillside while designing;enhancing the reconstruction of the grounded network,installing additional zinc oxide surge arresters in thunderous areas;grounding the cross-arm on 35kV overhead line and installing the grounded network. |
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| Keywords: | overhead line strip-out rate cause of thunderstroke damages precaution measure against thunderstroke |
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