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| Presentation | 2014-01-30 10:05 Damages and Mitigations in Telecommunication Access Installations against Lightning Toshio Ito, Naomichi Nakamura, Shigemi Kikuchi, Yasunori Ogura, Kazuo Murakawa (NTT East), Hironori Makino (NTT Field Techno), Mototsugu Yamazaki (NTT Facilities), Hitomi Horii, Tatsuya Maeda, Kazuya Sawada, Kazuhisa Imamura (NTT Field Techno)  EMCJ2013-111 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | In recent years, a lightning that directly strikes high-rise buildings and structures such as wind turbines or antenna towers usually causes the lightning damage to telecommunication access installations adjacent to such structures. As the damage in the overhead installations, the discharge and melt damage to a telecommunication cable connection in a splicing closure, the damage to a messenger wires, and a detachment of a concrete from surface of concrete pole are reported. The damage to telecommunication installations due to the lightning strikes may lead to interruptions in telecommunication services. Accordingly, the mitigations against lightning are an important challenge that requires further study. In this paper, the damage example of the various overhead telecommunication installations due to the lightning is shown, and the damage mechanism of the overhead telecommunication installations is solved. Furthermore, the proposal toward an improvement of surge protects in the telecommunication installations and the result of estimation experiment is shown. These proposal aims establishment of a construction method to the telecommunication installations. Finally, based on these results, a subject towards the mitigation against lightning in the telecommunication access installations is shown, and the mitigation against lightning in the future telecommunication access installations is viewed. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Direct strikes / lightning / telecommunication access installations / mitigation / experiments / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 113, no. 423, EMCJ2013-111, pp. 1-6, Jan. 2014. | |
| Paper # | EMCJ2013-111 | |
| Date of Issue | 2014-01-23 (EMCJ) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | EMCJ2013-111 |
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| Conference Information | |
| Committee | EMCJ WPT |
| Conference Date | 2014-01-30 - 2014-01-31 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Saga Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Communication, Wireless power transmission, EMC, etc. |
| Paper Information | |
| Registration To | EMCJ |
| Conference Code | 2014-01-EMCJ-WPT |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Damages and Mitigations in Telecommunication Access Installations against Lightning |
| Sub Title (in English) | |
| Keyword(1) | Direct strikes |
| Keyword(2) | lightning |
| Keyword(3) | telecommunication access installations |
| Keyword(4) | mitigation |
| Keyword(5) | experiments |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Toshio Ito |
| 1st Author's Affiliation | Nippon Telegraph and Telephone East (NTT East) |
| 2nd Author's Name | Naomichi Nakamura |
| 2nd Author's Affiliation | Nippon Telegraph and Telephone East (NTT East) |
| 3rd Author's Name | Shigemi Kikuchi |
| 3rd Author's Affiliation | Nippon Telegraph and Telephone East (NTT East) |
| 4th Author's Name | Yasunori Ogura |
| 4th Author's Affiliation | Nippon Telegraph and Telephone East (NTT East) |
| 5th Author's Name | Kazuo Murakawa |
| 5th Author's Affiliation | Nippon Telegraph and Telephone East (NTT East) |
| 6th Author's Name | Hironori Makino |
| 6th Author's Affiliation | NTT Field Techno (NTT Field Techno) |
| 7th Author's Name | Mototsugu Yamazaki |
| 7th Author's Affiliation | NTT Facilities (NTT Facilities) |
| 8th Author's Name | Hitomi Horii |
| 8th Author's Affiliation | NTT Field Techno (NTT Field Techno) |
| 9th Author's Name | Tatsuya Maeda |
| 9th Author's Affiliation | NTT Field Techno (NTT Field Techno) |
| 10th Author's Name | Kazuya Sawada |
| 10th Author's Affiliation | NTT Field Techno (NTT Field Techno) |
| 11th Author's Name | Kazuhisa Imamura |
| 11th Author's Affiliation | NTT Field Techno (NTT Field Techno) |
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| 12th Author's Affiliation | () |
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| 13th Author's Affiliation | () |
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| 14th Author's Affiliation | () |
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| 15th Author's Affiliation | () |
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| 16th Author's Affiliation | () |
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| 17th Author's Affiliation | () |
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| 18th Author's Affiliation | () |
| Speaker | Author-1 |
| Date Time | 2014-01-30 10:05:00 |
| Presentation Time | 25 minutes |
| Registration for | EMCJ |
| Paper # | EMCJ2013-111 |
| Volume (vol) | vol.113 |
| Number (no) | no.423 |
| Page | pp.1-6 |
| #Pages | 6 |
| Date of Issue | 2014-01-23 (EMCJ) |
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