Proceedings of the KSR Conference (한국철도학회:학술대회논문집)

The Korean Society for Railway (한국철도학회)
권호 표지

The research for the application of polymer support insulator used in DC railway system

직류전기철도에서의 고분자 지지애자 적용에 관한 연구

  • 이기승 (서울메트로 기술연구소 시스템연구부) ;
  • 김윤식 (서울메트로 기술연구소 시스템연구부) ;
  • 심재석 (서울메트로 기술연구소 시스템연구부) ;
  • 정호성 (한국철도기술연구원 집전력연구실) ;
  • 이기원 (한국철도기술연구원 집전력연구실) ;
  • 조호령 ((주)평일 기술연구소)
  • Published : 2009.05.21
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Abstract

The use of polymer insulator has increased all over the world. As of 2000's KEPCO has used it fully since they introduced it in early 1990's. In Korea it is very widely used by KORAIL which uses AC 25 kV system in the ground electric car line. And It is also used in tunnel electric car line to support AT feeder line. But it has not been used in the section of DC 1500 V. In case of DC 1500 V electric railway system It is has been developed by research institutes by means of R&D projects since 2008. The user cleans porcelain insulators regularly by water because of dusts and pollution. In case of polymer insulators It is very easy to be made dirty by pollution because of the material properties and hard to be cleaned by cleansing. In accordance with these reasons It is worried about deterioration. This paper deals with anticipating problems when we apply it to DC electric railway system and the procedure for testing polymer support insulator.

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