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

Kim, Sung-Chul (Department of Safety Engineering Chungbuk National University)
Kim, Doo-Hyun (Department of Safety Engineering Chungbuk National University)
Publication Information
Journal of the Korean Society of Safety / v.22, no.4, 2007 , pp. 26-31 More about this Journal
Abstract
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.
Keywords
electrical fire; disconnection; deteriorating time; electrical fire cause diagnosis; Flux 3D;
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