Evaluation of lightning protection systems proposed for small structures by electromagnetic simulation

This paper validates the performance of low-cost lightning protection systems for small structures proposed by researchers in the past. Such structures have an acute demand in the countries with very high lightning ground flash density, yet the affordability of the mass public is quite limited due t...

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Main Authors: Gomes, Ashen, Gomes, Chandima, Ab Kadir, Mohd Zainal Abidin, Izadi, Mehdi, Rock, Michael
Format: Conference or Workshop Item
Language:English
Published: IEEE 2016
Online Access:http://psasir.upm.edu.my/id/eprint/55995/
http://psasir.upm.edu.my/id/eprint/55995/1/Evaluation%20of%20lightning%20protection%20systems%20proposed%20for%20small%20structures%20by%20electromagnetic%20simulation.pdf
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author Gomes, Ashen
Gomes, Chandima
Ab Kadir, Mohd Zainal Abidin
Izadi, Mehdi
Rock, Michael
author_facet Gomes, Ashen
Gomes, Chandima
Ab Kadir, Mohd Zainal Abidin
Izadi, Mehdi
Rock, Michael
author_sort Gomes, Ashen
building UPM Institutional Repository
collection Online Access
description This paper validates the performance of low-cost lightning protection systems for small structures proposed by researchers in the past. Such structures have an acute demand in the countries with very high lightning ground flash density, yet the affordability of the mass public is quite limited due to the struggling economies of the countries. The protection systems for small housing structure, and a standalone protection structure for one or few people have been investigated by implementing the structures in HFSS/ANSYS software which employs finite element method. By applying current waveforms to represent first negative return stroke, subsequent negative return stroke and positive return stroke, the electric field and potential gradient of the entire space and the current density and the thermal profile of the protective structure have been computed. The objectives were to find whether the voltage distribution in the wake of a lightning strike could initiate side flashes, generate touch potential and step potentials that exceed dangerous levels, drive current densities due to which the structure collapse under thermal effects. It has been found that the proposed protective structures could suppress side flashes and harmful effects due to step potential while the structure will be able to withstand the heat generated. However, the touch potential could still be beyond the human injury thresholds, thus a minimum separation from the lightning current passage should be advised to the occupants.
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format Conference or Workshop Item
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institution Universiti Putra Malaysia
institution_category Local University
language English
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publishDate 2016
publisher IEEE
recordtype eprints
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spelling upm-559952017-07-03T09:25:29Z http://psasir.upm.edu.my/id/eprint/55995/ Evaluation of lightning protection systems proposed for small structures by electromagnetic simulation Gomes, Ashen Gomes, Chandima Ab Kadir, Mohd Zainal Abidin Izadi, Mehdi Rock, Michael This paper validates the performance of low-cost lightning protection systems for small structures proposed by researchers in the past. Such structures have an acute demand in the countries with very high lightning ground flash density, yet the affordability of the mass public is quite limited due to the struggling economies of the countries. The protection systems for small housing structure, and a standalone protection structure for one or few people have been investigated by implementing the structures in HFSS/ANSYS software which employs finite element method. By applying current waveforms to represent first negative return stroke, subsequent negative return stroke and positive return stroke, the electric field and potential gradient of the entire space and the current density and the thermal profile of the protective structure have been computed. The objectives were to find whether the voltage distribution in the wake of a lightning strike could initiate side flashes, generate touch potential and step potentials that exceed dangerous levels, drive current densities due to which the structure collapse under thermal effects. It has been found that the proposed protective structures could suppress side flashes and harmful effects due to step potential while the structure will be able to withstand the heat generated. However, the touch potential could still be beyond the human injury thresholds, thus a minimum separation from the lightning current passage should be advised to the occupants. IEEE 2016 Conference or Workshop Item PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/55995/1/Evaluation%20of%20lightning%20protection%20systems%20proposed%20for%20small%20structures%20by%20electromagnetic%20simulation.pdf Gomes, Ashen and Gomes, Chandima and Ab Kadir, Mohd Zainal Abidin and Izadi, Mehdi and Rock, Michael (2016) Evaluation of lightning protection systems proposed for small structures by electromagnetic simulation. In: 2016 33rd International Conference on Lightning Protection (ICLP), 25-30 Sept. 2016, Estoril, Portugal. . 10.1109/ICLP.2016.7791440
spellingShingle Gomes, Ashen
Gomes, Chandima
Ab Kadir, Mohd Zainal Abidin
Izadi, Mehdi
Rock, Michael
Evaluation of lightning protection systems proposed for small structures by electromagnetic simulation
title Evaluation of lightning protection systems proposed for small structures by electromagnetic simulation
title_full Evaluation of lightning protection systems proposed for small structures by electromagnetic simulation
title_fullStr Evaluation of lightning protection systems proposed for small structures by electromagnetic simulation
title_full_unstemmed Evaluation of lightning protection systems proposed for small structures by electromagnetic simulation
title_short Evaluation of lightning protection systems proposed for small structures by electromagnetic simulation
title_sort evaluation of lightning protection systems proposed for small structures by electromagnetic simulation
url http://psasir.upm.edu.my/id/eprint/55995/
http://psasir.upm.edu.my/id/eprint/55995/
http://psasir.upm.edu.my/id/eprint/55995/1/Evaluation%20of%20lightning%20protection%20systems%20proposed%20for%20small%20structures%20by%20electromagnetic%20simulation.pdf