雷击电力线下建筑物电磁屏蔽分析

2016 33rd International Conference on Lightning Protection (ICLP) Pub Date : 2016-09-01 DOI:10.1109/ICLP.2016.7791454

S. Ladan, A. Aghabarati, R. Moini, S. Fortin, F. Dawalibi

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引用次数: 5

摘要

本文从频域和时域两方面研究了位于输电线路塔附近的多开口金属外壳在雷电袭击下的屏蔽效果。分析了两种情况，以确定可能的干扰源。首先，考虑整个电网，包括被雷击的塔、屏蔽线和相导体。其次，对单塔遭雷击的简化情况进行了研究。结果表明，为了更好地对设备进行防雷保护，应将整个电网作为干扰源进行屏蔽效能研究。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Electromagnetic shielding analysis of buildings under power lines hit by lightning

The shielding effectiveness of a metallic enclosure with multiple openings sited close to a transmission line tower hit by lightning is investigated, both in the frequency domain and in the time domain. Two scenarios are analyzed to define the possible sources of interference. First, the entire power network including the tower hit by lightning, shield wires and phase conductors is considered. Next, the simplified case of a single tower hit by lightning is investigated. The results reveal that for a better protection of equipment against lightning, the entire power network should be considered as source of interference for the study of shielding effectiveness.

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2016 33rd International Conference on Lightning Protection (ICLP)

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