• Electric Engineers Magazine
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• v.192 no.8
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• pp.42-46
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• 1998

내무부 소방국이 매년 화재건수를 조사, 분석한 통계에 따르면 97년 한해동안 발생된 화재 중 전기화재는 약 34.2%의 점유율을 차지해 여전히 1위를 고수하고 있다. 이는 미국, 일본보다 높은 수치이며 노후 전기설비 등 개선대책 마련이 시급하고 미확인 화재는 전기화재로 집계하는 문제 등을 내포하고 있다.

• Fire Science and Engineering
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• v.33 no.2
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• pp.98-106
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• 2019

As lithium batteries have been used for car navigation systems and as the second battery for black boxes, lithium battery-related car fires have often occurred. In the case a lithium battery is the fire origin, a fire investigation technique has not been established to determine if a battery ignites or whether the lithium battery is damaged by fire. This study introduced car fire cases related to lithium batteries, analyzed the causes of a fire of a lithium battery, and proposed fire investigation techniques to objectively determine if a lithium battery ignites or whether a lithium battery is damaged by fire after external ignition.

• Korean Chemical Engineering Research
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• v.59 no.2
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• pp.225-231
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• 2021

Sesame seed oil cakes are classified as the animal or plant origin among the flammable liquids, and the fire occurs due to the spontaneous ignition through the accumulation of heat during the storage of residues after the extraction of sesame oil. In order to elucidate the cause of the spontaneous ignition of sesame seed oil cakes, the thickness (3 cm, 5 cm, 7 cm and 14 cm) of the sample container was varied, and the spontaneous ignition temperature was measured depending on the storage volume. Thus, the spontaneous ignition temperature was measured to be 180 ℃ at the thickness of 3 cm, 160 ℃ at 5 cm, 145 ℃ at 7 cm and 130 ℃ at 14 cm. As the thickness of the sample container increased, the critical ignition temperature decreased, and the induction time to spontaneous ignition and the time to reach the maximum temperature became longer. Furthermore, the apparent activation energy by the critical ignition temperature, which is the average temperature of ignition and non-ignition, was 97.10 [kJ/mol]. With these data, ignition characteristics of sesame seed oil cakes were determined.

• Fire Science and Engineering
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• v.30 no.4
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• pp.73-81
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• 2016

A self-regulating heating cable is an electrical heating element by flowing an electric current between parallel conductors filled with an extruded semi-conductive polymer. Self-regulating heating cables are used mainly for frost protection purposes because the construction is convenient and the price is low. On the other hand, structural problems with imperfections of the insulation can cause a fire despite their usefulness. This paper deduced a direct method to derive the cause by investigating the scene of a fire due to a self-regulating heating cable and analyzed the basic problem using fault tree analysis. In this paper, the actual fire scene was a cold storage warehouse, and fire investigation was conducted. After investigating the fire scene and fault tree analysis, the cause of the fire could be attributed to dielectric breakdown of the self-regulating heating cable. This paper could be utilized in the fire safety activities and similar fire investigations.

• Fire Science and Engineering
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• v.24 no.1
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• pp.103-110
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• 2010

Farming activity was the second cause of forest fire following the carelessness. In this study, 74 forest fires caused by farming activity and waste burning in 2009 was investigated for analyzing ignition patterns. The main cause to bring about forest fire was the farming waste burning as 25 cases, burning of farming waste matter after product and household waste burning were the second causes as 19 cases. Landcovers which transfer flame from ignition point to forest were fallow field graveyard, field fruit farm, field levee fallow field. The average distance between ignition point and forest sleeve was 19 m, and the maximum distance was 130 m. The probability of forest fire ignition was high in the 100 m buffer zone from the forest sleeve that is the prohibition rule of fire use for forest fire prevention at the forest fire season.

• Fire Science and Engineering
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• v.24 no.5
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• pp.102-106
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• 2010

This paper studied the measurement about the gunpowder residue quantity by using a handgun and we carried out an experiment ignition characteristics of the gunpowder residue for the investigation fire cause into the indoor shooting range in Busan. The measurement of the gunpowder residue quantity is spouted by using a 0.38 inch gun and 9 mm gun. We were carried out evaluation experiments such as impact sensitivity test, static electricity sensitivity test, friction sensitivity test and measuring a flash point for the ignition characteristics about the gunpowder residue. From experiment results, the impact sensitivity and friction sensitivity of the gunpowder residue in comparison with ball powder are highly sensitive and the gunpowder residue ignites at a relatively low temperature.

• Proceedings of the Korea Institute of Fire Science and Engineering Conference
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• 2010.04a
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• pp.481-486
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• 2010

본 논문은 실내사격장 화재 원인에 대한 조사를 위하여 권총 사용에 따른 화약잔사 양에 대한 실측 및 발화특성에 관하여 연구하였다. 화약잔사 양의 실측은 1차로 사대 부분을 밀폐한 상태에서 실내사격장에 사용되는 권총과 동일한 구경 0.38인치 권총 및 구경 9mm 권총을 5발 발사하여 총구 및 약실로 분출되는 화약잔사의 양을 측정하였으며, 2차로 사대 개방 후, 구경 0.38인치 권총을 100발 발사하는 경우, 사대 바닥면에 떨어지는 화약잔사의 양을 측정하였다. 화약잔사에 대한 발화특성은 충격 감도, 정전기 감도, 마찰 감도 및 발화점 시험을 실시하였으며, 비교 평가에는 권총에 일반적으로 사용되는 사용전의 화약(ball powder)을 이용하여 화약잔사와 동일한 시험을 실시하였다. 실험결과 충격감도 및 마찰강도는 화약잔사에서 다소 높게 측정되었으며, 발화점 시험에서는 화약잔사가 비교대상인 사용전의 화약에 비해 낮은 온도에서 발화되는 특성을 나타내었다.

• 방재와보험
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• s.153
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• pp.36-43
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• 2014

• 방재와보험
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• s.145
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• pp.36-41
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• 2012

• Journal of Korean Institute of Fire Investigation
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• v.9 no.1
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• pp.91-101
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• 2006

본 연구는 2005 년 8월 7 일 22시 58분경 전북 00시 00면 00리 고센농장(축사내 작업장용도 건물)에서 발생한 화재현장을 대상으로 화재조사 및 감식을 하여 그 원인을 규명하고자 하였다. 조사 결과 화재는 축사(돈사)와 같이 붙어있는 작업장용도의 공간에서 발생하였으며, 그곳엔 무쏘차량과 5톤 트럭, 페이로더를 주차시켜 놓았으며, 화재는 안쪽에 있는 무쏘차량과 5톤 트럭의 운전석부위가 소실되고, 입구 우측에 적재해 두었던 사료통 및 사일로가 탄화된 화재로 5톤 차량 옆에 주차되어있던 스키로더는 탄화되지 않은 점, 무쏘차량과 5톤 차량은 4M정도 떨어져 있었으며 각기 다른 3곳의 발화지점이 있는 점, 소유자는 3개월 전부터 금연을 하였다고 진술하였으나 현장에서 1 회용 라이터가 발견된 점, 작업장 안의 차량은 키가 꽂혀 있었고, 평소에 차량의 문을 잠그지 않았다고 진술한 점, 농장은 문이 개방되어 있고 도로에서 떨어져 있어(150M 정도) 일반인의 접근이 용이하지 않으며, 화재현장에서는 화원이 될만한 개연성을 가진 것이 식별되지 않은 점, 각각 3곳에서 단독 발화한 것이 식별된 점 등 상기 감식내용을 종합해 보면 미상의 화원에 의한 인위적인 화재(방화)로 추정된다.