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