• 방재와보험
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• s.79
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• pp.48-49
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• 1998

• 방재와보험
• /
• s.117
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• pp.40-45
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• 2007

• 방재와보험
• /
• s.143
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• pp.42-45
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• 2011

• 방재와보험
• /
• s.118
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• pp.28-34
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• 2007

• 방재와보험
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• s.142
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• pp.40-43
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• 2011

• Fire Science and Engineering
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• v.25 no.3
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• pp.63-71
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• 2011

In this study, it was evaluated the fire risk of an electric heater as representative seasonal appliances. Two type of electric heaters were used in experiments. When electric heaters were operated, temperature variation was measured around the heater. Internal structure was understood by Nondestructive inspection. It was evaluated the tire risk of electric heaters, when flammable materials were positioned ear a heater. It was also estimated the probability of a tire in case of malfunction of a safety tip-over witch. When a heater was operated in a normal condition, temperature was maintained under $80^{\circ}C$ around the heater. The possibility of a fire is very high, when a heater is covered with flammable materials or malfunction of safety parts (safety tip-over switch, anti-overheating devices).

• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.23 no.6
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• pp.72-77
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• 2009

In total electric fire in Korea in 2006, a rate of the electric fire caused of short in electric wire is over 63.2[%]. It is needed to study a fire potentiality in electric wire. This paper studies contact and fire potentiality between a electric wire and conductors existed around the electric wire. As amplitude of current in electric wire is bigger, as it has higher possibility to contact between a electric wire and conductors existed around the electric wire. In case of temperature of wire is over combustion point of outer sheath, it is appeared to spark discharge between wire and conductors. So the fire potentiality raise up.

• Fire Science and Engineering
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• v.23 no.3
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• pp.40-47
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• 2009

Nowadays the diversity and large-capacity of electric appliances are strong effect on electrical fires augment in an alarming way. But, as the inactive response characteristics of the existing RCD (Residual Current protective Device) used on low voltage power distribution system, so control of overload and electric short circuit faults, major causes of electrical fires, are not enough. Therefore, this paper is confirmed the unreliability of the existing RCD by electrical fault simulator and is proposed a Electrical Fire Disaster Prevention Device (EFDPD) by using a high precision current sensor (namely, reed switch) for the prevention of electrical disasters in low voltage power distribution system caused by overload or electric short circuit faults. The sensitive reed switch in the proposed EFDPD exactly detects the increased magnetic flux with the overload or the short current caused by a number of electrical faults, and the following, the EFDPD has double protection function which operates self circuit breaker or rapidly cuts off the existing RCD. The proposed EFDPD is confirmed the excellent characteristics in response velocity and accuracy in comparison with the conventional circuit breaker through various operation performance analysis. The proposed EFDPD can also prevent electrical disaster, like as electrical fires, which resulted from the malfunction and inactive response characteristics of the existing RCD.

• Fire Science and Engineering
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• v.22 no.1
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• pp.24-28
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• 2008

This paper studied on the causal analysis of electrical fire by using fuse that it is used with safety device in electrical products. The experimental samples used are glass tube fuse(15 A, $5{\times}20mm$) and temperature fuse(10 A, $72^{\circ}C$). The experiment analyzed on the characteristics of damaged fuse by main causes(short circuit, overload, external flame) of electrical fire. The results showed, in case of glass tube fuse identified different characteristics in external form and element surface and element texture of damaged fuse by main causes of electrical fire. In case of temperature fuse identified different characteristics in external form and sliding contact surface and sliding contact texture of damaged fuse only by external flame.

• Proceedings of the Korean Institute of Industrial Safety Conference
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• 2002.11a
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• pp.143-148
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• 2002

산업현장 뿐만 아니라 일반가정에서 냉난방기기와 다양한 전기제품의 사용으로 전기용량은 해마다 증가하고 있으며 이로 인해 전선의 과열에 따른 화재위험성이 점점 높아지고 있다. 전기화재의 발생원인을 살펴보면, 합선, 과부하, 누전, 접촉부과열, 스파크등 주로 전선에서 화재의 위험성이 높다. 전선은 종류와 굵기에 따라 최고허용전류와 온도가 정해져 있다.(중략)