한국안전학회지 (Journal of the Korean Society of Safety)

  • 제39권2호
  • /
  • Pages.22-27
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  • 2024
  • /
  • 1738-3803(pISSN)
  • /
  • 2383-9953(eISSN)
한국안전학회 (The Korean Society of Safety)
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용해로의 공정상 온도상승 및 과전류에 따른 케이블의 절연저항 특성

Characteristics of Insulation Resistance of Cable according to Temperature Rise and Over-Current for Process of the Melting Furnace

  • Suk Bong Ko (Korea Industrial Safety Association) ;
  • Doo-Hyun Kim (Department of Safety Engineering, Chungbuk National University) ;
  • Sung-Chul Kim (Department of Safety Engineering, Chungbuk National University)
  • 투고 : 2024.02.14
  • 심사 : 2024.04.15
  • 발행 : 2024.04.30
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초록

The purpose of this study is to explore the trend in insulation resistance values according to temperature and overcurrent by conducting an investigation on the actual condition and experiments on the electrical wiring during the melting furnace process. In addition, the Arrhenius equation is used to determine whether temperatures in the furnace operating process can be applied to the actual field. In the investigation of the actual condition, the insulation resistance started to decrease seven years after replacement, even though cables in oil pump A were replaced in 2010. Both the experimental and theoretical values of the insulation resistance obtained using the Arrhenius equation decreased with an increase in temperature. Errors in insulation resistance (MΩ) values between tests and the Arrhenius equation ranged from ±2 to ±10, demonstrating a high similarity. Results revealed that when the insulation resistance cannot be measured in a manufacturing workplace (quarterly analysis), it can be estimated by partially applying the Arrhenius equation.

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참고문헌

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