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首页> 外文期刊>Science, Measurement & Technology, IET >Analysis of electric field influence on buildings under high-voltage transmission lines
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Analysis of electric field influence on buildings under high-voltage transmission lines

机译：高压输电线路下电场对建筑物的影响分析

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摘要

High-voltage cables especially bare cables generate intense electric fields. Within certain distances, the fields could have strong effects on human health. Since of housing planning factors, it is inevitable that there will be buildings located under bare cables. Whether the intensity of electric field exceeds safety level (5 kV/m at 50 Hz) has been a concern for both land agents and residents. To address the concerns, this study studies the electric field of 500 kV overhead transmission line exerted on building and proposes the scheme for field intensity reduction. The authors study shows that when overhead cable and building are in different relative locations, the maximum intensity and influence range in the window regions can be highly variable, which suggests an optimal building orientation to minimise the electric field generated by overhead transmission lines. They also studied the field distribution in window regions on each floor in two models. The results provide design basis for safe distance between buildings and transmission lines. A shielding scheme for building construction is proposed to reduce the field intensity. Experiment result shows that with shielding on the building roof at a certain angle, the influence of electric field can be effectively reduced.
机译：高压电缆，特别是裸电缆会产生强电场。在一定距离内，这些田地可能对人类健康产生巨大影响。由于住房规划因素的影响，在裸露的电缆下不可避免地会有建筑物。电场强度是否超过安全级别（50 Hz时为5 kV / m）一直是土地代理商和居民关注的问题。为了解决这些问题，本研究研究了施加在建筑物上的500 kV架空输电线路的电场，并提出了降低场强的方案。作者的研究表明，当架空电缆和建筑物位于不同的相对位置时，窗户区域的最大强度和影响范围可能会发生很大变化，这表明了一种最佳的建筑物方向，可以最大程度地减少架空传输线产生的电场。他们还用两种模型研究了每层窗户区域中的场分布。研究结果为建筑物与输电线路之间的安全距离提供了设计依据。为了降低场强，提出了一种用于建筑物的屏蔽方案。实验结果表明，以一定角度对建筑物屋顶进行屏蔽，可以有效降低电场的影响。

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