Evaluation of lightning surge characteristics induced in subscriber line at telecommunication center end in a tropical area
Lightning surges induced on subscriber lines in Kuala Lumpur, Malaysia, which is located in a tropical region, were observed at telecommunication centers. More than 100 surges per line were observed during a three-month period. Peak values, observed using a lightning surge counter, show that lightni...
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| Format: | Article |
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Oxford University Press
2004
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| _version_ | 1796855062609264640 |
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| author | Tominaga, Tetsuya Kuwabara, Nobuo Kato, Jun Ramli, Annuar Samad, A. Halim Ahmad, Hussein |
| author_facet | Tominaga, Tetsuya Kuwabara, Nobuo Kato, Jun Ramli, Annuar Samad, A. Halim Ahmad, Hussein |
| author_sort | Tominaga, Tetsuya |
| collection | ePrints |
| description | Lightning surges induced on subscriber lines in Kuala Lumpur, Malaysia, which is located in a tropical region, were observed at telecommunication centers. More than 100 surges per line were observed during a three-month period. Peak values, observed using a lightning surge counter, show that lightning surge current occurrences normalized by the number of thunderstorm days and number of subscriber lines closely agreed with data observed in temperate areas, e.g., Japan. Surge waveforms appearing at several points ranging from underground cable ducts to exchange equipment were observed using a wave memory system. The results show that lightning surge currents on the cables were larger than those on a wire, but the correlation between them was weak. Common and differential mode surge waveforms observed using the wave memory system were almost the same. These results will be useful in designing protection circuits for equipment used in tropical areas. |
| first_indexed | 2024-03-05T18:23:07Z |
| format | Article |
| id | utm.eprints-12350 |
| institution | Universiti Teknologi Malaysia - ePrints |
| last_indexed | 2024-03-05T18:23:07Z |
| publishDate | 2004 |
| publisher | Oxford University Press |
| record_format | dspace |
| spelling | utm.eprints-123502011-07-22T08:51:45Z http://eprints.utm.my/12350/ Evaluation of lightning surge characteristics induced in subscriber line at telecommunication center end in a tropical area Tominaga, Tetsuya Kuwabara, Nobuo Kato, Jun Ramli, Annuar Samad, A. Halim Ahmad, Hussein TK Electrical engineering. Electronics Nuclear engineering Lightning surges induced on subscriber lines in Kuala Lumpur, Malaysia, which is located in a tropical region, were observed at telecommunication centers. More than 100 surges per line were observed during a three-month period. Peak values, observed using a lightning surge counter, show that lightning surge current occurrences normalized by the number of thunderstorm days and number of subscriber lines closely agreed with data observed in temperate areas, e.g., Japan. Surge waveforms appearing at several points ranging from underground cable ducts to exchange equipment were observed using a wave memory system. The results show that lightning surge currents on the cables were larger than those on a wire, but the correlation between them was weak. Common and differential mode surge waveforms observed using the wave memory system were almost the same. These results will be useful in designing protection circuits for equipment used in tropical areas. Oxford University Press 2004-03 Article PeerReviewed Tominaga, Tetsuya and Kuwabara, Nobuo and Kato, Jun and Ramli, Annuar and Samad, A. Halim and Ahmad, Hussein (2004) Evaluation of lightning surge characteristics induced in subscriber line at telecommunication center end in a tropical area. IEICE Transactions on Communications, E87-B (3). 742-751 . ISSN 0916-8516 |
| spellingShingle | TK Electrical engineering. Electronics Nuclear engineering Tominaga, Tetsuya Kuwabara, Nobuo Kato, Jun Ramli, Annuar Samad, A. Halim Ahmad, Hussein Evaluation of lightning surge characteristics induced in subscriber line at telecommunication center end in a tropical area |
| title | Evaluation of lightning surge characteristics induced in subscriber line at telecommunication center end in a tropical area |
| title_full | Evaluation of lightning surge characteristics induced in subscriber line at telecommunication center end in a tropical area |
| title_fullStr | Evaluation of lightning surge characteristics induced in subscriber line at telecommunication center end in a tropical area |
| title_full_unstemmed | Evaluation of lightning surge characteristics induced in subscriber line at telecommunication center end in a tropical area |
| title_short | Evaluation of lightning surge characteristics induced in subscriber line at telecommunication center end in a tropical area |
| title_sort | evaluation of lightning surge characteristics induced in subscriber line at telecommunication center end in a tropical area |
| topic | TK Electrical engineering. Electronics Nuclear engineering |
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