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Electromagnetic shielding analysis of buildings under power lines hit by lightning

机译：电力线下电源线的电磁屏蔽分析

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摘要

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.
机译：在频域和时域中，研究了金属外壳的屏蔽效果，其靠近通过闪电击中的传输线塔。分析了两种情况以定义可能的干扰源。首先，考虑包括塔架的整个电力网络，包括避雷，屏蔽线和相导体。接下来，研究了通过闪电击中的单个塔的简化案例。结果表明，为了更好地保护避雷器设备，整个电网应被视为对屏蔽效果研究的干扰来源。

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