Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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A Change of Surface Structure with Insulation Cover and Outdoor Cross-linked Polyethylene Insulated Wire Degraded by Salt Water

염수에 의해 열화된 절연커버 및 옥외용 가교폴리에틸렌 절연전선의 표면구조변화

  • Choi, Chung-Seog (Electrical Safety Research Institute attached to Korea Electrical Safety Corporation) ;
  • Gil, Hyoung-Jun (Electrical Safety Research Institute attached to Korea Electrical Safety Corporation) ;
  • Kim, Hyang-Kon (Electrical Safety Research Institute attached to Korea Electrical Safety Corporation) ;
  • Han, Woon-Ki (Electrical Safety Research Institute attached to Korea Electrical Safety Corporation)
  • 최충석 (한국전기안전공사 부설 전기안전연구원) ;
  • 길형준 (한국전기안전공사 부설 전기안전연구원) ;
  • 김향곤 (한국전기안전공사 부설 전기안전연구원) ;
  • 한운기 (한국전기안전공사 부설 전기안전연구원)
  • Published : 2004.07.14
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Abstract

In this paper, in order to analyze the characteristics of degradation by salt water with insulation cover and OC wire(outdoor cross-linked polyethylene insulated wire) used in power receiving system, an experimental apparatus has been designed and fabricated. An insulation cover and OC wire were installed in an experimental apparatus, and degraded in each case of 2%, 5%, 10% salinity during 12 weeks. An optical microscope was used to observe a changing process of sample surface, and an electrical safety was analyzed by measuring dielectric breakdown voltages of samples. As salinity increased, so ununiformity of sample surface increased. The breakdown wasn't produced to 50kV about samples regardless of salinity, testing period.

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