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A Study on the Flame Pattern and the Electrical Properties of Electric Outlet Fired at Standby Mode  

최충석 (전기안전시험연구원)
송길목 (전기안전시험연구원)
김형래 (전기안전시험연구원)
김향곤 (전기안전시험연구원)
김동욱 (전기안전시험연구원)
김동우 (전기안전시험연구원)
Publication Information
Fire Science and Engineering / v.16, no.1, 2002 , pp. 39-44 More about this Journal
Abstract
In this paper, we analysed the flame patterns and the electrical characteristics of the electric outlet which was fired at standby mode. The carbonized patterns indicated that the flame had spread about 50 cm to 70 cm. After the combustibles on wall started to burn, the temperature went up to about $300^{\circ}c$ in 150 sec. The flame formed ceiling jet and spread quickly. The tracking was generated at the shortest distance between two electrodes and the resistance was about 100$\Omega$ to 300$\Omega$ As the result of analysis using metallurgical microscope, the normal part of a blade holder showed amorphous structure, but the melted part of a blade holder damaged by tracking showed dendrite structure and void evenly. When the blade holder of damaged outlet was analyzed by SEM and EDX, we found that the structure and components of the normal part were different from those of melted part.
Keywords
Standby mode; Carbonized patterns; Ceiling jet; Tracking; Dendrite structure;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 L. Centurioni, G. Coletti, and A. Operto, 'A Contribution to the Study of the Tracking Phenomenon in Solid Dielectric Materials Under Moist Condition', IEEE Trans. Elect. Insul., pp.147-152(1977)
2 최충석, 이덕출, '$YBa_2Cu_3O_{7-x}$플라즈마 프름의 발광분광분석', 대한전기학회논문지, 44권, 9호, pp.1l82-1186(1995)
3 V. Ollier-Dureault and B. Gosse, 'Photo-oxidation and Electrical Aging of Anhydride-cured Epoxy Resins', IEEE Trans. on Dielectrics and Electrical Insulation, Vol. 5, No.6, pp.935-943(1998)   DOI   ScienceOn
4 ASTM D 2303-90, 'Standard Test Methods for Liquid-Contaminant, Inclined-Plane Tracking and Erosion of Insulating Materials'
5 IEC Publication 60587, Second Edition, 'Test Method for Evaluating Resistance to Tracking and Erosion of Electrical Insulating Materials use Under Severe Ambient Conditions'(1984)
6 최충석, 이경섭, 이덕출, '열열화된 600V 2종 비닐절연전선의 특성 변화 연구', 대한전기학회논문지, 49C권, 1호, pp.8-12(2000)
7 N. Yoshimura, M. Nishida, and F. Noto, 'Light Emission from Tracking Discharges on Organic Insulation', IEEE. Trans. Elect. Insul., EI-19(1984)
8 S. Kumagai and N. Yoshimura, 'Tracking and Erosion of HTV Silicone Rubbers of Different Thickness', IEEE Trans. on Dielectrics and Electrical Insulation, Vol. 8, No.4, pp.673-678 (2001)   DOI   ScienceOn
9 G. Karady et al., 'Flashover Mechanism of Silicone Rubber Insulators Used for Outdoor Insulation', IEEE Trans. Power Delivery, Vol. 10, No. 4(1995)   DOI   ScienceOn