Proceedings of the Korean Institute of Information and Commucation Sciences Conference (한국정보통신학회:학술대회논문집)

The Korea Institute of Information and Commucation Engineering (한국정보통신학회)
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The Protection methods of Telecommunication Network from Electrical Transient Phenomena

전기적 과도현상으로부터 통신망의 보호대책

  • Choi, Man-Ho (Dept. of Electronic Engineering, Jinju National University) ;
  • Kim, Hyun-Duk (Dept. of Electronic Engineering, Jinju National University) ;
  • Kim, Byung-Cheul (Dept. of Electronic Engineering, Jinju National University)
  • 최만호 (진주산업대학교 전자공학과) ;
  • 김현덕 (진주산업대학교 전자공학과) ;
  • 김병철 (진주산업대학교 전자공학과)
  • Published : 2005.10.28
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Abstract

Parallel and cross of the electrical power and telecommunication network is become accelerated, because telecommunication equipments are constructed according to road for efficient maintenance of domestic telecommunication network. The electrical power network can generate an electrostatic induction, and is itself transmission medium from electrical transient phenomenon such as lighting. So, transient phenomenon of lightning surge is induced to telecommunication network, and then it is damaged by connecting between electrical ground of electrical power network and telecommunication network. In this study, we found that cut-off of return path current by separate distance between electrical ground of electrical power network and telecommunication network, and cut-off of electrostatic induction voltage by grounding unused leads of both terminals of the electrical and telecommunication network have good effect as the protection methods of telecommunications network from electrical transient phenomena.

국내의 통신망은 효율적인 유지보수를 위하여 도로를 따라 기반시설이 구축되고 있기 때문에 전력망과 통신망의 교차와 병행이 가속화되고 있다. 전력망은 전력유도를 발생시킬 뿐만 아니라, 낙뢰와 같은 전기적 과도현상으로부터 그 자체가 전송매체로 되기 때문에 전력망 지중 접지체와 통신망 지중 접지체간을 통하여 낙뢰서지 및 지락선 과도 현상이 통신망에 유도되어 악영향을 초래한다. 본 연구에서는 통신망의 보호대책으로 지중접지체간의 이격거리를 통한 귀로전류의 차단과 양쪽 단자의 유휴심선을 접지하여 전력유도전압을 차폐하는 방법이 우수한 효과를 나타냄을 확인 할 수 있었다.

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