Journal of the Korean Society of Safety (한국안전학회지)

The Korean Society of Safety (한국안전학회)
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Analysis of Current Signals for Overcurrent and Series Arc in Traditional Market Shops

재래시장 상가에서 과전류 및 직렬아크의 전류 신호에 대한 분석

  • Kim, Doo-Hyun (Department of Safety Engineering, Chungbuk National University) ;
  • Hwang, Dong-Kyu (Department of Safety Engineering, Chungbuk National University) ;
  • Kim, Sung-Chul (Department of Safety Engineering, Chungbuk National University) ;
  • Kim, Sang-Ryull (Department of Occupational Health, Andong Science College) ;
  • Lee, Jong-Ho (Division of Fire Service Administration, Wonkwang University)
  • Received : 2012.01.12
  • Accepted : 2012.05.03
  • Published : 2012.06.30
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Abstract

This paper is aimed to analysis of electrical fire risk by overcurrent and series arc signals in traditional market shops Firstly, the field state investigation was conducted for shops at the traditional market (30 shops). At each shop in the traditional market, load characteristics were investigated and thermal characteristics in Panel were analyzed. Thermal characteristics in Panel is an indicator that can determine the impact of overcurrent. Results of the field state investigation found out four shops which showed abnormal thermal characteristics in Panel. Electrical load characteristics of these 4 shops were simulated by experimental setup consists of generator, motor and heater. In order to verify the electrical fire risk by electrical loads of 4 shops, arc and overcurrent experiments were conducted. The waveshapes of arc and overcurrent are investigated in both the time and frequency domains to find signal characteristics. The results obtained in this paper will be very helpful for the prevention of electrical fires occurred at the shops in the traditional market.

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