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A Study on Analysis of Arc Current Waveforms for Detection of Prognostics of Electrical Fires  

Hwang, Jin-Kwon (우석대학교 소방안전학과)
Publication Information
Fire Science and Engineering / v.23, no.1, 2009 , pp. 7-14 More about this Journal
Abstract
Several electrical loads such as inrush current, normal operation arcing and non-sinusoidal loads have normal current waveforms similar to arc waveforms. To detect arcs in such loads, therefore, it is necessary to analyze difference between current waveforms with or without arcs. In this paper, using apparatuses of arc generation in UL 1699, arcs are generated in these loads and, then, arc current waveforms are investigated in both the time and the frequency domains to find arc characteristics. This investigation shows that arc current signals have shoulders at some zero current points in the time domain and increment of spectrum magnitude in all over frequency domain. It also shows that the arc characteristics at normal operation arcing and non-sinusoidal loads are detected more easily in the frequency domain than in the time domain. This investigated arc characteristics are expected to be utilized as the basis of development of arc-fault circuit interrupters.
Keywords
Arc; Electrical fire; UL 1699; Current transformer; Arc-Fault Circuit-Interrupter;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 최충석, 김동우, 김영석, 이기연, '고감도형 누전차단기 접점의 스위칭에 따른 아카 비산 특징', 한국화재소방학회 논문지, Vol.19, No.2, pp.75-80(2005)
2 W. Wang, S. Liu, and J. E. Jones, 'Flux Cored Arc Welding : Arc Processing and Metal Transfer Characterization', Welding Journal, Vol.74, No.11. pp.369-377(1995)
3 송길목, 최충석, 김향곤, 김영석, 'AC 전류에 의해 용융된 나전선의 발열특성', 한국조명전기설비학회 논문지, Vol.20, No.1-2, pp.77-84(2006)
4 곽동걸, 신미영, 정도영 (2006), '아크 및 스파크 재해에 대한 누전찬기 트립을 위한 보조제어 전기안전 장치에 관한 연구', 한국화재소방학회 논문지, Vol.20, No.1, pp.71-76(2006)
5 J.J. Shea, 'Conditions for Series Arcing Phenomena in PVC Wiring', IEEE Trans. on Components and Packaging Technologies, Vol.30, Issue 3, Sept. pp.532-539(2007)   DOI   ScienceOn
6 UL standard for Safety for Arc-Fault Interrupters, UL 1699, First Ed., Feb. 26(1999)
7 National Electric Code (NEC)(2002)
8 소방방재청, 2006년도 화재통계연감, http://www.nema.go.kr/data/statistic/view.jsp(2007)
9 김창종, 노용호, '전기 화재 요인으로서의 스파크 신호 특성 분석', 한국조명전기설비학회, 추계학술대회논문집, pp.55-59(1997)