Analysis for the Thermal Properties of the Electrical Wire according to Overload and Disconnection

과부하 및 물리적 손상(반단선)에 의한 전선의 열적특성 해석

  • Kim, Sung-Chul (Department of Safety Engineering Chungbuk National University) ;
  • Kim, Doo-Hyun (Department of Safety Engineering Chungbuk National University)
  • Published : 2007.08.31


According to the statistical analysis on the electrical fire of 2005 years, most of electrical fire is generated from short circuit(4,985 cases), overcurrent(755 cases) leakage current(391 cases), poor contact(378 cases), disconnection(36 cases) on the electrical wiring device. The researches for the fire hazard about normal electric wiring have already been progressing in the advanced country such as USA and Japan, but Comparative study of the disconnection has not been conducted. Therefore, in this paper, we have simulated the thermal analysis for electrical wire according to deteriorating time in a normal state and disconnection with electrical wire using the electrical-thermal finite element method(Flux 3D). This paper acquire basis data of electricity fire signal by disconnection and wish to help for electrical fire cause diagnosis business.


  1. 한국전기안전공사, '' (전기통계)
  2. 오홍석, '전기화재발생원인 및 분석에 관한 연구 (전선의 열해석을 통하여)', 한국화재.소방학회, 제16권, 제4호, 2002
  3. 한국전기안전공사 전기안전연구원, '배선용 및 기기용전선의 화재위험성에 관한 연구', 2001
  4. 金点鎬, 'HIV 전선의 화재원인 분석에 관한 연구', 2004
  5. 한국산업규격, 'KSC IEC 60227-5'
  6. 東京消防, '新火災調査敎本 (電氣火災編)', 2004
  7. Michael R, Yenchek 'Thermal Modeling of Portable Power Cables', IEEE, 1997
  8. Rob Bradley, 'Cable Temperature monitering', NGC
  9. 재우기술, ''