A study on the thermal characteristics of power cord sets for low voltage according to poor contacts

저압용 전원선의 접촉불량에 따른 열적 특성에 관한 연구

  • 김향곤 (전기안전연구원(한국전기안전공사 부설)) ;
  • 최충석 (전기안전연구원(한국전기안전공사 부설)) ;
  • 김동욱 (전기안전연구원(한국전기안전공사 부설)) ;
  • 정헌상 (조선대학교 전기공학과)
  • Published : 2003.07.21

Abstract

PVC insulated flexible cords are widely used as power cord sets in household electric appliances for low voltage. In this paper, we studied the thermal characteristics of power cord sets according to poor contacts between a receptacle and plug pins. In the results of experiments, poor contacts generated heat and ignited the combustibles. And the heat was transmitted to the plug body. While poor contacts were continuing, the electrical waveforms changed. Electrical accidents could be prevented by analyzing these waveforms.

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