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地铁高架桥耐雷水平和防雷措施研究

DOI: 10.16188/j.isa.1003-8337.2015.06.007, PP. 31-33

Keywords: 地铁,高架桥,耐雷水平,接地电阻,绝缘子

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Abstract:

地铁高架区段的线路由于暴露在外面,易于遭受雷击,因此有必要研究地铁高架区段的耐雷性能。建立地铁高架接触网耐雷水平模型,得到了雷击架空地线和雷击接触网的耐雷水平,讨论接地方式、避雷器架设方式对耐雷水平的影响。研究结果表明:接地点和安装避雷器支柱的耐雷水平较高,雷击架空地线耐雷水平高于雷击接触网的耐雷水平,间隔架设避雷器并接地对接触网和架空地线耐雷水平提高效果较好。

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