한국안전학회지 (Journal of the Korean Society of Safety)

  • 제20권1호
  • /
  • Pages.87-93
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  • 2005
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  • 1738-3803(pISSN)
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  • 2383-9953(eISSN)
한국안전학회 (The Korean Society of Safety)
권호 표지

전원코드의 접촉 불량에 의해 형성된 파형 및 플러그의 특성

The Properties of Waveform and Plug Formed by Poor Contact of Power Cord Sets

  • Choi Chung-Seog (Electrical Safety Research Institute attached to KESCO) ;
  • Kim Hyang-Kon (Electrical Safety Research Institute attached to KESCO) ;
  • Kim Dong-Ook (Electrical Safety Research Institute attached to KESCO) ;
  • Kim Young-Seok (Electrical Safety Research Institute attached to KESCO)
  • 발행 : 2005.03.01
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초록

In this paper, we analyzed ignition characteristics of combustible material and the waveform of power dissipation, voltage and current by poor contact. And the surface structure of plug by poor contact was analyzed. In the results of experiment, the heat generated by poor contact and ignited the combustible material on power cord sets. The insulation material was molten and carbonized by the heat conduction though plug pit and voids were formed inside of insulation material. The waveform of voltage and power dissipation distorted because of a growth of oxidation by poor contact. In particular, in case that load was big load, the waveform of voltage and power dissipation severely distorted as with the passage of time. The surface of plug pin was changed from erosion mark to welding mark according to big load. The results will be applied to the cause analysis of electrical disaster.

키워드

참고문헌

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