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http://dx.doi.org/10.5207/JIEIE.2006.20.1.077

The Heating Characteristics of Electric Bare Wire Melted by AC Current  

Shong, Kil-Mok (전기안전연구원 전기재해연구그룹)
Choi, Chung-Seog (전기안전연구원 전기재해연구그룹)
Kim, Hyong-Kon (전기안전연구원 전기재해연구그룹)
Kim, Young-Seok (전기안전연구원 전기재해연구그룹)
Publication Information
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers / v.20, no.1, 2006 , pp. 77-84 More about this Journal
Abstract
For a fire cause judgement this paper describes the heating characteristics of electric bare wire melted by AC current. The cower wires prepared for the experiment were 1.2[mm], 1.6[mm], and 2.0[mm] in diameter. Through the cross section analysis(CSA), it was confirmed that the dendrite structure grew at the angle of about 40[$^{\circ}$] or 60[$^{\circ}$] when the fusing current was applied to the wires. The larger the fusing current is, the more decreased the growth angle of the dendrite structure is. It was confirmed that the dendrite structure was arranged like the columnar structure.
Keywords
fire cause judgement; heating characteristics; fusing current; dendrite structure; columnar structure;
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