Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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A Study on the Characteristics of ELB Insulating Material deteriorated by Salt water

염수에 의해 열화된 누전차단기 절연재료의 특성에 관한 연구

  • 김형래 (전기안전시험연구원) ;
  • 김동욱 (전기안전시험연구원) ;
  • 김혁수 (전기안전시험연구원) ;
  • 최충석 (전기안전시험연구원) ;
  • 김훈 (강원대학교 전기공학과)
  • Published : 2001.07.01
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Abstract

In this paper, we analyzed the characteristics of insulating material with ELB(earth leakage circuit breaker) through tracking experiment and the study was carried out three different types of samples. The tracking is breakdown phenomenon of material surface that is generated on the organic insulating material. The test method applied IEC publication 587. The result of the sample breakdown by tracking was carbonized and resistance of between the electrodes is approximately 300$\Omega$. In the result of DSC analysis, the caloric peak was detected before 100$^{\circ}C$ in product of tracking. It appeared weight loss of 10.87% at 537$^{\circ}C$ on TGA. IR spectrum analysis showed carbon-hydrogen(C-H)bond on molecular structure that is the sample of tracking.

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