Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Effects of Hot Water on the Aging of URD Power Cables

지중 배편케이블의 열화에 미치는 온수의 영향

  • 한재홍 (한국전력공사 전력연구원) ;
  • 송일근 (한국전력공사 전력연구원) ;
  • 김주용 (한국전력공사 전력연구원) ;
  • 이병성 (한국전력공사 전력연구원) ;
  • 정종욱 (한국전력공사 전력연구원)
  • Published : 2002.07.01
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Abstract

In this study, we investigated the effects of hot water on the aging of URD power cables due to the hot water ingress to power distribution lines. Hot water contacted and non-contacted cables extracted from 2 distribution lines were characterized by the measurement of oxidation induction time(OIT) and chemical structure. In OIT measurement, hot water contacted cables showed the shorter OIT than non-contacted ones. Especially, hot water contacted insulation layer near insulation shield showed the shortest OIT. In chemical structure analysis, the antioxidant content was decreased and the acid concentration was increased by hot water ingress. From this results, it can be concluded that the hot water ingress to power cable may be accelerate the aging by means of antioxidant consumption.

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References

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