Journal of the Korean Society of Safety (한국안전학회지)

The Korean Society of Safety (한국안전학회)
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Analysis of Thermal Characteristics and Insulation Resistance based on Usage Environment and Current Value of Electrical Socket Outlet

전기콘센트의 사용환경과 전류값에 따른 열적특성 및 절연저항 분석

  • Kim, Kyung Chun (Department of Safety and Infrastructure, Korea Institute of Machinery&Materials) ;
  • Kim, Doo Hyun (Department of Safety Engineering, Chungbuk National University) ;
  • Kim, Sung Chul (Department of Safety Engineering, Chungbuk National University)
  • 김경천 (한국기계연구원 안전시설실) ;
  • 김두현 (충북대학교 안전공학과) ;
  • 김성철 (충북대학교 안전공학과)
  • Received : 2019.07.08
  • Accepted : 2019.08.10
  • Published : 2019.10.31
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Abstract

In 2018, overload, overcurrent, insulation aging, and a contact failure caused 659 electric fires. There is almost no failure of electrical socket outlets during their manufacturing or installation period. After several months or several years, overload or overcurrent of electrical socket outlets leads to a contact failure or short circuit which causes an electric fire. Therefore, this paper analyzed for thermal characteristics based on a current value and the change in insulation resistance along with a temperature rise caused by electrical socket outlets and the state of laboratory use in workplaces. As a results, regarding the thermal characteristics based on the current value of each installation year, a temperature increase was related to a current value, an installation year, and whether the contact unit is corroded. Insulation resistance began to decrease when a temperature increased to a certain level. With a lapse of installation year, the temperature at which insulation resistance began to decrease was lowered. This paper can be applicable for the survey data about electrical socket outlet induced fire accidents and management guidelines.

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References

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