Proceedings of the Korean Institute of Information and Commucation Sciences Conference (한국정보통신학회:학술대회논문집)
- Volume 9 Issue 2
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- Pages.200-203
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- 2005
Generation and Detection of Discharge Signals in Deteriorated
열화된 저압용 콘센트에서 방전신호의 발생과 검출
- Song, Jae-Yong (Korea Maritime University) ;
- Seo, Hwang-Dong (Korea Maritime University) ;
- Moon, Seung-Bo (Korea Maritime University) ;
- Kil, Gyung-Suk (Korea Maritime University) ;
- Cho, Young-Jin (National Institute of Scientific Investigation)
- Published : 2005.10.28
Abstract
Most of electrical fires are caused by short circuits, overheating of wires, deterioration and incomplete connection of wiring devices. The last two cases are predictable before the occurrence of fire because of its slow progress. In this paper, we have simulated the discharge signals caused by the deterioration and incomplete connection of wiring devices using an aged concent to provide information on the characteristics of discharge signals. From the experimental data, we could characterize the frequency spectrums of the discharge signals depending on the cases. The higher frequency components of the signal are attenuated by the capacitance and inductance of power lines as the measuring point is getting away from the discharges. Main frequency components of the discharge signal are existent at 600 kHz - 1.5 MHz in incomplete connections and at 210 kHz - 8 Mhz in deteriorations of the concent.
Keywords
- discharge signal;
- indoor outlet;
- electrical fire;
- deterioration;
- incomplete connection;
- frequency spectrum