Journal of the Korean Institute of Illuminating and Electrical Installation Engineers (조명전기설비학회논문지)

The Korean Institute of IIIuminating and Electrical Installation Engineers (한국조명전기설비학회)
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The Thermal Characteristics of Partially Disconnected Wire Happened in Plug

플러그 내부에서 발생된 소선 단선에 의한 발열특성

  • 지승욱 (호서대학교 소방방재학과) ;
  • 김시국 (호서대학교 대학원 소방방재학과) ;
  • 이춘하 (호서대학교 소방방재학과)
  • Received : 2010.12.13
  • Accepted : 2011.01.24
  • Published : 2011.04.30
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Abstract

There are over 30[%] of electric fires in Korea happened at wire or wiring devices. For its prevention many safety devices are set up electric equipments. These safety devices are not working in a rated current's condition of electric equipment. But when wire is partially disconnected, electric fire is able to be happened even though current is smaller than a rated current value. This paper studied thermal characteristics and fire ability when wire in plug is partially disconnected. The experiment is progressed a method that inner wire of plug is partially disconnected and after that current that is less than a rated current is flowed. As the result, heating occurred in near of partially disconnected wire makes that outer sheath is melted, plug cover is carbonized, and even sometimes wire is fused. And results of analysis of thermal image of partially disconnected wire happened in plug, it shows a difference to heating distribution and temperature appeared surface of plug depend on a progress of a partially disconnected wire.

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References

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