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A Study on the Damage by Burning Characteristics of Insulating Materials of RCD  

Lee, Chun-Ha (호서대학교 소방방재학과)
Kim, Shi-Kuk (호서대학교 소방방재학과)
Ok, Kyung-Jae (호서대학교 안전공학과)
Jee, Seung-Wook (영남대학교 전기공학과)
Publication Information
Fire Science and Engineering / v.23, no.2, 2009 , pp. 62-66 More about this Journal
Abstract
In this study, we study the damage by burning characteristics of insulating material of RCD (Residual Current Device) used in Korea. The insulating materials of RCD manufactured by three manufacturers are used as the sample. We compare and analyze the thermal decomposition characteristics, combustion characteristics and tracking characteristics of samples. The TGA and Mass Loss Calorimeter meeting the requirements for the ISO5660 (Fire tests-Reaction to Fire, part 1) are used for analyzing the thermal decomposition characteristics and combustion characteristics respectively. In addition, the tracking characteristics are analyzed according to standard of KSC IEC 60112 known as the test used for measuring the resistance tracking and comparison tracking indexes. The study results show that the resistance tracking property of insulating material provided by A Company is highest. Also, the test results show that the resistance tracking property of insulating material provided by B Company is lowest. However, the thermal stability of insulating material provided by this company is excellent at high temperature of above $350^{\circ}C$. In addition, the test results show that the thermal stability of insulating material provided by C Company is highest at temperature of below $400^{\circ}C$.
Keywords
Tracking; Insulating materials; RCD; Carbonic electric conductive pass;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
1 박남규, 성균관대학교, '트래킹에 의해 변화되는 유기절연물의 표면 및 전기적 특성', 박사학위논문, pp. 1-5(2007)
2 김형래, 강원대학교, '저전압에 의해 소손된 페놀수지의 트래킹 특성에 관한 연구', 석사학위논문, pp.11-12(2001)
3 이춘하, 옥경재, 김시국, 지승욱, '오염된 누전차단기 절연재료의 트래킹 특성에 관한 연구', 한국화재소방학회, Vol.22, No.5(2008)
4 박형주, 김응식, 김장환, 김동현, '복사열을 이용한 소나무와 굴참나무 낙엽의 연소특성 분석', 한국화재소방학회 논문지, Vol.21, No.3, pp.33-41(2007)
5 Tim A. Osswald, Gorg Menges, 'Materials Science of Polymers for Engineers, Hanser Gardner Pubns, pp.168-173(2003)
6 D.J. Parr and R.M. Scarisbrick, 'Performance of Synthetic Insulating Material Under Polluted Conditions', Proc. IEE, Vol.112, No.8, pp.1625-1632(1965)
7 IEC 60589, Methods of test for the determination of ionic impurities in electrical insulating materials by extraction with liquids
8 최충석, 송길목, 김동우, '누전차단기 외함 전원측 단자사이의 트래킹에 의한 탄화특성 분석', 한국화재소방학회, Vol.17, No.4(2003)
9 KS C 4613, Residual Current Protective Devices (2006)
10 송길목, 노여수, 곽희로, '트래킹에 의해 열화된 페놀수지의 탄화특성', KIEE Trans, 53C, 1호, pp.1-7(2004)
11 소방방재청, 전국화재통계분석(2006)
12 KS C IEC 60112, '고체 절연 재료의 내트래킹 및 비교트래킹 지수 측정 방법'(2005)