Journal of the Korean Society of Industry Convergence (한국산업융합학회 논문집)
- Volume 5 Issue 3
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- Pages.255-260
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- 2002
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- 1226-833X(pISSN)
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- 2765-5415(eISSN)
A Study on Dynamic Characteristics of Electrical Fire Prevention Control Devices with a lamp and a motor load
전등 부하 및 전동기 부하시 전기화재예방 제어장치의 동작 특성에 관한 연구
- Lee, Sang-Ho (Dept. of Fire & Disaster Eng.) ;
- Oh, Hong-Seok (Dept. of Fire & Disaster Eng.)
- Received : 2002.05.22
- Accepted : 2002.08.20
- Published : 2002.08.31
Abstract
Recently, the occurrences of electrical fire have been suppressed by an earth leakage breaker(ELB), a no fuse breaker(NFB) and a fuse in case of an earth leakage, a short circuit and an over current. But it is impossible for the ELB to break the circuit in the case of the failure of pressure contacts on connecting points and the momentary short circuit. Therefore, it is require to study the constructive problem of the ELB. In this paper, we have developed the auxiliary control device, electrical fire prevention control device(EFPCD), of the ELB. And we have tested the operation characteristics of the ELB according to the load(R, L) As a result of this experiment, we could prevent the electrical fire due to the spark and the overheat occurring in the failure of pressure contacts on connecting points and the momentary short circuit.