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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The characteristics analyses of deteriorated PVC insulated flexible cords by over-current

과전류에 의해 열화된 비닐코드의 특성 분석

  • 김향곤 (전기안전연구원(한국전기안전공사 부설)) ;
  • 최충석 (전기안전연구원(한국전기안전공사 부설)) ;
  • 김동욱 (전기안전연구원(한국전기안전공사 부설)) ;
  • 정현상 (조선대학교)
  • Published : 2003.07.10
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Abstract

In this paper, we experimented on the deterioration process of power supply cords and analyzed the heating temperature of each part of those cords. We also analyzed the surface states, metallurgical structures surface structures and compositions of the wire melted by over-current. In the results of the analyses, the covering began to be deteriorated from the inside. The heating temperature of extension cord was higher than that of plug body. The dendrite structures appeared at the melted wire. By the SEM and EDS analyses, the dendrite structure showed the growth of copper oxide. We found out the characteristics of PVC insulated flexible cords by over-current from the above experiments and analyses. These results may be useful data in the analyses of deterioration causes of power supply cords.

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