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Journal of the Korean Society of Safety (한국안전학회지)
- Volume 18 Issue 3
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- Pages.131-140
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- 2003
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- 1738-3803(pISSN)
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- 2383-9953(eISSN)
Cause Analyses of Boiler Accident and Their Counter-plans Based on Accident Cases
사고사례에 기초한 보일러 사고의 원인분석 및 대책
Abstract
An accident involving a boiler can result in a disaster since it handles high-pressurized steam so that it may cause an explosion. Therefore, the boiler is very susceptible to industrial accidents. This thesis aimed to develop counter-plans to prevent industrial accidents involved the boiler. At first after collecting accident cases involving boilers, a survey on the trait of them was carried out. Ant on the other hand a qualitative analysis was conducted to draw out hazardous components in the boiler itself and their inherent relative importance was assessed. Through this procedure, 'negligence of unsafe condition' was noted as the major cause for unsafe acts whereas 'fault in work procedure' for unsafe condition. In the meanwhile, results of a hazard analysis using FMEA technique ranked gas safety devices, a switch preventing gas from under-pressurization, protect relays high. In particular, it was pointed out that the water feeding and steam subsystem has more components in hazard than other subsystems. Considering these analyses results, counter-plans to improve safety management was suggested also.