Consideration of lightning current along a tall structure in the presence of horizontal arrangement grounding
The evaluation of the behaviour of lightning current along a tall structure is becoming an important issue when considering the lightning protection equipment required along a tall structure. This behaviour is affected by the element of the ground reflection factor which has a correlation between th...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Trans Tech Publications
2015
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| Online Access: | http://psasir.upm.edu.my/id/eprint/44170/1/SOIL.pdf |
| _version_ | 1825929499451064320 |
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| author | Ab Kadir, Mohd Zainal Abidin Gomes, Chandima Azis, Norhafiz Rameli, Norhidayu Izadi, Mahdi Md Arshad @ Hashim, Syahrun Nizam |
| author_facet | Ab Kadir, Mohd Zainal Abidin Gomes, Chandima Azis, Norhafiz Rameli, Norhidayu Izadi, Mahdi Md Arshad @ Hashim, Syahrun Nizam |
| author_sort | Ab Kadir, Mohd Zainal Abidin |
| collection | UPM |
| description | The evaluation of the behaviour of lightning current along a tall structure is becoming an important issue when considering the lightning protection equipment required along a tall structure. This behaviour is affected by the element of the ground reflection factor which has a correlation between the impedance of the ground and the tower. The impedance of the ground is considered for a horizontal grounding arrangement while the impedance of the tower is assumed to be constant. Hence, the ground reflection factor can be given a variable value, whereas most of the existing literature assumes a constant value. When a constant value is entered into a calculation field, an inaccurate result is computed.In this paper, the lightning current along a tall structure under varying values of ground reflection factor and including the effect of the presence of a horizontal grounding arrangement has been considered and the results discussed accordingly. Modelling of the lightning return stroke current along a tall structure was undertaken by entering the calculated variable value of the ground reflection factor. The results indicated that a variable value of the ground reflection factor causes different peak values of the current and wave shape of the lightning current for different positions along a tall structure. |
| first_indexed | 2024-03-06T08:57:38Z |
| format | Article |
| id | upm.eprints-44170 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T08:57:38Z |
| publishDate | 2015 |
| publisher | Trans Tech Publications |
| record_format | dspace |
| spelling | upm.eprints-441702021-01-23T21:10:56Z http://psasir.upm.edu.my/id/eprint/44170/ Consideration of lightning current along a tall structure in the presence of horizontal arrangement grounding Ab Kadir, Mohd Zainal Abidin Gomes, Chandima Azis, Norhafiz Rameli, Norhidayu Izadi, Mahdi Md Arshad @ Hashim, Syahrun Nizam The evaluation of the behaviour of lightning current along a tall structure is becoming an important issue when considering the lightning protection equipment required along a tall structure. This behaviour is affected by the element of the ground reflection factor which has a correlation between the impedance of the ground and the tower. The impedance of the ground is considered for a horizontal grounding arrangement while the impedance of the tower is assumed to be constant. Hence, the ground reflection factor can be given a variable value, whereas most of the existing literature assumes a constant value. When a constant value is entered into a calculation field, an inaccurate result is computed.In this paper, the lightning current along a tall structure under varying values of ground reflection factor and including the effect of the presence of a horizontal grounding arrangement has been considered and the results discussed accordingly. Modelling of the lightning return stroke current along a tall structure was undertaken by entering the calculated variable value of the ground reflection factor. The results indicated that a variable value of the ground reflection factor causes different peak values of the current and wave shape of the lightning current for different positions along a tall structure. Trans Tech Publications 2015 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/44170/1/SOIL.pdf Ab Kadir, Mohd Zainal Abidin and Gomes, Chandima and Azis, Norhafiz and Rameli, Norhidayu and Izadi, Mahdi and Md Arshad @ Hashim, Syahrun Nizam (2015) Consideration of lightning current along a tall structure in the presence of horizontal arrangement grounding. Applied Mechanics and Materials, 793. pp. 34-38. ISSN 1660-9336 https://www.scientific.net/AMM.793.34 10.4028/www.scientific.net/AMM.793.34 |
| spellingShingle | Ab Kadir, Mohd Zainal Abidin Gomes, Chandima Azis, Norhafiz Rameli, Norhidayu Izadi, Mahdi Md Arshad @ Hashim, Syahrun Nizam Consideration of lightning current along a tall structure in the presence of horizontal arrangement grounding |
| title | Consideration of lightning current along a tall structure in the presence of horizontal arrangement grounding |
| title_full | Consideration of lightning current along a tall structure in the presence of horizontal arrangement grounding |
| title_fullStr | Consideration of lightning current along a tall structure in the presence of horizontal arrangement grounding |
| title_full_unstemmed | Consideration of lightning current along a tall structure in the presence of horizontal arrangement grounding |
| title_short | Consideration of lightning current along a tall structure in the presence of horizontal arrangement grounding |
| title_sort | consideration of lightning current along a tall structure in the presence of horizontal arrangement grounding |
| url | http://psasir.upm.edu.my/id/eprint/44170/1/SOIL.pdf |
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