대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 2004년도 하계학술대회 논문집 B
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- Pages.1367-1369
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- 2004
지하철 직류 급전시스템의 표유전류 실태 분석(II) 부산 지역
Analysis of the Stray Current Conditions in Subway DC Electrification System (II) Busan Metropolitan Area
- Ha Yoon-Cheol (Korea Electrotechnology Research Institute) ;
- Ha Tae-Hyun (Korea Electrotechnology Research Institute) ;
- Bae Jeong-Hyo (Korea Electrotechnology Research Institute) ;
- Kim Dae-Kyeong (Korea Electrotechnology Research Institute) ;
- Lee Hyun-Goo (Korea Electrotechnology Research Institute)
- 발행 : 2004.07.14
초록
When an underground pipeline runs parallel with subway DC electrification system, it suffers from stray current corrosion caused by the stray current from the rails negative returns. Perforation due to the stray current corrosion may bring about disastrous accidents such even in cathodically protected systems. Traditionally, bonding methods such as direct drainage, polarized drainage and forced drainage have been used in order to mitigate the damage on pipelines. In particular, the forced drainage method is widely adopted in Busan. In this paper, we report the real-time measurement data of the pipe-to-soil potential variation in the presence and absence of the IR compensation. The drainage current variation was also measured using the Stray Current Logger developed. By analyzing them, the problems of current countermeasures for stray current corrosion are discussed.
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