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电网技术  2015 

交流输电线路附近民房平台处工频电场限值研究

DOI: 10.13335/j.1000-3673.pst.2015.06.010, PP. 1532-1537

Keywords: 交流输电线路,民房阳台,民房平台,工频电场限值,人体感受试验

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Abstract:

在进行输变电工程临近房屋的电磁环境影响评价时,经常出现要求测量房顶平台的工频电场,并按4kV/m进行评价的主张。针对此类有测量方法但无限值依据的情况,开展不同工频电场下的直接感受和暂态电击感受(包括对地绝缘的人触摸良好接地金属体、良好接地的人触摸对地绝缘的金属体)的试验。在综合考虑人体在工频电场下的直接感受和可能出现的暂态电击后,建议对于居民不必经常活动的屋顶平台,距平台底面1.5m处的工频电场控制值取7kV/m;对于居民日常活动区域的平台,建议工频电场控制值与一楼地面的相同,即距平台(包含阳台)底面1.5m处的工频电场控制值取4kV/m。

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