• Title/Summary/Keyword: 정온전선

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Fire Cause Reasoning of Self-regulating Heating Cable by a Fire Investigation Applying the Scientific Method and Fault Tree Analysis (과학적 방법을 적용한 화재조사와 결함수 분석을 이용한 정온전선의 발화원인 추론)

  • Kim, Doo-Hyun;Lee, Heung-Su
    • Fire Science and Engineering
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    • v.30 no.4
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    • pp.73-81
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    • 2016
  • A self-regulating heating cable is an electrical heating element by flowing an electric current between parallel conductors filled with an extruded semi-conductive polymer. Self-regulating heating cables are used mainly for frost protection purposes because the construction is convenient and the price is low. On the other hand, structural problems with imperfections of the insulation can cause a fire despite their usefulness. This paper deduced a direct method to derive the cause by investigating the scene of a fire due to a self-regulating heating cable and analyzed the basic problem using fault tree analysis. In this paper, the actual fire scene was a cold storage warehouse, and fire investigation was conducted. After investigating the fire scene and fault tree analysis, the cause of the fire could be attributed to dielectric breakdown of the self-regulating heating cable. This paper could be utilized in the fire safety activities and similar fire investigations.

회원사 동정

  • Korea Electrical Manufacturers Association
    • NEWSLETTER 전기공업
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    • no.94-15 s.112
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    • pp.43-46
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    • 1994
  • PDF

Scientific fire investigation by NFPA 921 CODE based on frozen warehouse fire case (냉동창고 화재 사례를 기반으로 하는 NFPA 921 CODE에 의한 과학적 화재조사 연구)

  • Park, Kyong-Jin;Lee, Yong-KI;Cha, Sung-Sig;Jung, Dong-Young;Kim, Jang-Oh
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.19 no.8
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    • pp.78-85
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    • 2018
  • In this study, we investigated the cases where there were many opinions in the judgment of the cause of ignition in the case of 20 cases of frozen warehouse fire that occurred in 2017.The research methodology is the scientific fire survey method prescribed by the NFPA 921 CODE. Scientific fire investigation method is fire investigation method by logical reasoning through hypothesis setting, minimizing errors in judgment of ignition source. On the other hand, unscientific fire investigation methods cause many errors by the intervention of irrational factors such as subjective estimation, reasoning judgment, etc. This eventually leads to the problem of human and material responsibility and academic deterioration. In particular, fire not seen as compared to sighted fire makes more errors in ignition sources in the cause investigation. In this study, we set the hypothesis A and hypothesis B based on the review of the fire investigation report and the field survey on the fire case of the cold storage warehouse front line that occurred at ** city ** Mart in 2017.The set hypothesis was tested by the NFPA 921 code. This analytical method will be constructed by NEW Paradigm as a source of fire that is not seen in the future and a source of ignorant fire.In addition, the experimental data of this study will be used to inform the manufacturer and operator of the refrigeration warehouse and serve as basic data for fire prevention.