• Fire Science and Engineering
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• v.15 no.2
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• pp.53-58
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• 2001

This study was undertaken to evaluate the performance of flame retardant for fire precaution from sparks at welding-cutting process in industry sites such as shipbuilding yard and chemical factory. As the results of the performance experiment, six kinds of welding blanket in samples that are used commercially had enough in the performance of flame retardant. Nevertheless, the performance to fire precaution un welding blanket shows that the coaling product of two kinds with fiber glass is not sufficient. The lower oxygen index to welding blanket is considered that it is more than 30 in domestic standard. We suggested that the performance improvement of flame retardant for welding blanket need continuously, and the guideline of the flame retardant to welding blanket should be considered and established.

• Proceedings of the Korean Institute of Industrial Safety Conference
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• 1998.11a
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• pp.293-299
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• 1998

조선업 및 화학공장 등 산업현장의 화재사고 중 용접$\cdot$용단작업시 불티에 의해 주위의 가연성물질을 착화시켜 화재, 폭발 사고를 일으키는 원인이 되고 있다. 이들 불꽃은 수평방향 및 틈새, 배관구멍 또는 마루나 댁의 작은 개구부 등을 통하여 비산되고 상당시간 훈소화재 형태를 유지하다 발화되어 화재의 원인이 되고 있다. 특히, 용단작업시 비산되는 불티는 $1,600^{\circ}C$ 이상의 고온체로서 산소 압력에 따라 다르나 약 11 m(산소압력, 7 kg/$cm^2$)까지 비산되어 이 반경내에 있는 가연물에 착화될 수 있으므로 이에 대한 예방대책이 필요한 작업공정이다. (중략)

• Journal of the Society of Disaster Information
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• v.18 no.2
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• pp.280-289
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• 2022

Purpose: In this study, the characteristics of fire occurrence according to ignition heat sources such as operating equipment, cigarette/lighter fire, and flame/fire were analyzed. Method: One-way ANOVA and cross-analysis were used to analyze the characteristics of fire occurrence by verifying the difference between the ignition environment, fire damage status and scale, and cause of ignition according to the ignition heat source. Result: The fire occurrence characteristics were analyzed through As a result of the analysis, it was found that fires caused by operating devices occurred more frequently on weekdays than other ignition heat sources, and the number of victims and the number of victims were the highest, so mobilization of firefighting power and property damage were the greatest. The initial ignition was generated by electric and electronic devices, and the combustion was expanded by the synthetic resin. For fires caused by cigarette and lighter fires, the most fires occurred on Saturdays and Sundays, and the mobilization of the police force was more characteristic than the mobilization of the firefighting force. In particular, it was found that the initial ignition and combustion expansion were caused by paper, wood, and hay. Fires caused by sparks and sparks occurred most frequently on Saturdays and Sundays, and initial ignition and combustion expansion were found to be caused by paper, wood, and hay. In particular, it showed the characteristic that it occurred in the place farthest from the fire station. The common characteristic of all ignition heat sources was that the fire occurred most frequently in the afternoon time, and the fire type was predominantly the building structure fire, and only the ignition point was burned the most. Conclusion: In order to prevent fire and minimize damage, it is necessary to analyze the tendency of fire occurrence and to prepare appropriate preparations according to the fire occurrence factors. In order to analyze the characteristics of fire occurrence using public data in the future, it is necessary to standardize disaster data and to open and activate data.