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The Causes and Analysis of Electrical Fires -focused on Dynamic Characteristics of RCD-  

이상호 (삼척대학교 소방방재학부)
Publication Information
Fire Science and Engineering / v.17, no.2, 2003 , pp. 1-5 More about this Journal
Abstract
Recently, the occurrences of electrical fire have been suppressed by a residual current protective devices(RCD), a molded case circuit breaker(MCCB) and a fuse in case of an earth leakage, a short circuit and an over current. But it is impossible for the RCD to break the circuit in the case of the conductor fractures, the failure of pressure contacts on connecting points and the momentary short circuit of low voltage wiring. Therefore, it is require to study the constructive problem of the RCD. In this paper, we have tested the operation characteristics of the RCD according to the R load and R-L load in the conductor fractures, the failure of pressure contacts on connecting points and the momentary short circuit of low voltage wiring.
Keywords
RCD; MCCB; The momentary short circuit; Low voltage wiring;
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