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논문 기본 정보

자료유형
학술저널
저자정보
Choi, Chung-Seog (Electrical Safety Research Institute, subsidiary of Korea Electrical Safety Corporation) Kim, Young-Seok (Electrical Safety Research Institute, subsidiary of Korea Electrical Safety Corporation) Kim, Hyang-Kon (Electrical Safety Research Institute, subsidiary of Korea Electrical Safety Corporation)
저널정보
한국안전학회 International Journal of Safety International Journal of Safety 제4권 제2호
발행연도
2005.1
수록면
18 - 23 (6page)

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There are many electrical connections in the electric apparatus and most fires due to a fault contact result from a failure or misuse of electric apparatus and installation. The fault contact happens between electrical connections by the loose and the mechanical vibration. In this paper, we have investigated thermal and electrical properties of screwed electric contacts due to the mechanical vibration. The exciter was connected to a signal generator and power amplifier that provided the vibration frequency and amplitude. The vibration, temperature and voltage data were sent to a data acquisition system (DAQ). In the case that fault contact took place, the arc happened between the screwed electric contact and electric wire, heat due to the arc was transmitted to the adjacent insulators, for which the oxide could be generated more. In addition, a spark was generated and the insulator began to melt. Thus, the possibility of electrical fire became the highest in this case. Finally, when the fault contact takes place due to vibration, the hazard of an electric accident is very high.

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