• Title/Summary/Keyword: 담뱃불

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Cause Analysis on Parked Motor Vehicle Fires (엔진정지 중인 자동차의 화재발생 원인 분석)

  • Lee, Ui-Pyeong
    • Congress of the korean instutite of fire investigation
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    • 2010.12a
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    • pp.120-136
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    • 2010
  • 엔진 정지 중 발생한 자동차화재는 엔진 정지 전에 이미 화재가 발생해 있었으나 이를 모르고 엔진 정지 중에 화재가 발견되는 경우와 엔진 정지 후에 발생한 경우로 나눌 수 있다. 엔진정지 전 발생한 화재는 운행 중 화재가 발생할 수 있는 모든 원인에 의해 발생할 수 있고, 엔진정지 후 발생한 화재는 전기적인 원인에 의한 화재, 담뱃불에 의한 화재, 방화, 다른 곳에서 발화된 후 자동차로 확대된 화재 중의 하나로 압축할 수 있다. 그러므로 외부발화 또는 방화나 담뱃불에 의한 화재가 배제되는 경우는 전기적인 원인만을 생각할 수 있다. 엔진정지 전에 이미 엔진룸 등에 불이 붙어 있어도 주차 중 이를 인식하지 못하는 것은 엔진정지 시 화재의 규모가 작거나 눈에 띄는 이상징후가 나타나 있지 않고 또한 이를 관심 있게 확인하지 않기 때문이다. 엔진정지 전에 화재가 발생한 경우에는 일반적으로 주차 후 대략 10분 이내에 화재가 발견되고 있다. 따라서 주차 후 10분이 경과하지 않은 시점에 화재가 발견되었다면 엔진정지 전에 이미 화재가 발생하였을 가능성이 크다고 볼 수 있다.

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A Study on Characteristics of the Ignition by Cigarette Light on Corrugated Board and Oils (골판지 및 유류등의 담뱃불 발화특성에 관한 실험적 연구)

  • Yun, In-Su;Kim, Byung-Seon;Cho, Won-Cheol;Lee, Tae-Shik
    • 한국방재학회:학술대회논문집
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    • 2008.02a
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    • pp.173-176
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    • 2008
  • The purpose of this study was to use case analysis and experimentations to examine the ignition characteristics of the cigarette lights on corrugated board and oils etc. As a result of the tested. The corrugated board could be ignited by cigarette light, but gasoline and lacquer thinner could seldom be ignited.

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A Study on the Fire Investigation of Blackpig Meat Shop (흑돼지정육점 화재 원인의 규명에 관한 연구)

  • Kim, Yong-Un;Joe, Hie-Su;Lee, Jeong-Il
    • Journal of Korean Institute of Fire Investigation
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    • v.9 no.1
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    • pp.79-89
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    • 2006
  • 본 연구는 2004년 10월 3일 03시 29분경 전북 00시 00동 지리산 흑돼지 정육점에서 발생한 화재현장을 대상으로 화재조사 및 감식을 하여 그 원인을 규명하고자 하였다. 조사 결과 안쪽방과 매장 사이에 있던 냉장고가 심하게 소훼 되었고, 점포와 안방 출입문 부위를 중심으로 가장 심한 탄화상태를 보이는 것으로 발화지점으로 보이며, 점포 내 휴게공간에서 발화하여 점포내부와 화장실을 통해 연소 확대되었음을 확인하였다. 한편, 발화원인으로는 전기적원인, 가스 난방기구 및 담뱃불 등 미소화원 등에 의한 발화 가능성의 특이점이 보이지 않으며, 휴게공간에서의 급격한 연소현상, 폭발 후 화재로 진전된 흔적, 바닥의 가연성액체에 의한 연소흔적 등으로 보아 방화의 가능성이 높다. 화재는 휴식공간입구 우측 큰 교자상과 밑의 작은 교자상 밑, 그 주위에 연소매개체로서 등유를 뿌린 상태에서 휴대용가스렌지를 이용 방화한 것으로 추정된다.

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Analysis of Fire Occurrence Characteristics According to Ignition Heat Sources (발화열원에 따른 화재발생 특성 분석)

  • Lee, Kyung-Su;Kim, Tae-Hyeung;Lee, Jae-Ou
    • 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.

Cause-specific Spatial Point Pattern Analysis of Forest Fire in Korea (우리나라 산불 발생의 원인별 공간적 특성 분석)

  • Kwak, Han-Bin;Lee, Woo-Kyun;Lee, Si-Young;Won, Myung-Soo;Koo, Kyo-Sang;Lee, Byung-Doo;Lee, Myung-Bo
    • Journal of Korean Society of Forest Science
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    • v.99 no.3
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    • pp.259-266
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    • 2010
  • Forest fire occurrence in Korea is highly related to human activities and its spatial distribution shows a strong spatial dependency with cluster pattern. In this study, we analyzed spatial distribution pattern of forest fire with point pattern analysis considering spatial dependency. Distributional pattern was derived from Ripley's K-function according to causes and distances. Spatially clustered intensity was found out using Kernel intensity estimation. As a result, forest fires in Korea show clustered pattern, although the degrees of clustering for each cause are different. Furthermore, spatial clustering pattern can be classified into two groups in terms of degrees of clustering and distance. The first group shows the national-wide cluster pattern related to the human activity near forests, such as human-induced accidental fire in mountain and field incineration. Another group shows localized cluster pattern which is clustered within a short distance. It is associated with the smoker fire, arson, accidental by children. The range of localized clustering was 30 km. Beyond of this range, the patterns of forest fire became random distribution gradually. Kernel intensity analysis showed that the latter group, which have localized cluster pattern, was occurred in near Seoul with high densed population.

Fire at an Indoor Shooting Range in Busan II. Causes and Fire Safety Measures (부산 실내사격장 화재 II. 원인 및 화재안전대책)

  • Park, Woe-Chul
    • Fire Science and Engineering
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    • v.24 no.4
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    • pp.92-97
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    • 2010
  • Fire simulation by using a computational fluid dynamics model and examination of the fires at indoor shooting ranges broken out in the past were conducted, to presume causes of the fire at the indoor shooting range in Busan and suggest fire safety measures. On-site investigations and shooting tests on unburned gunpowder were also carried out. No trace of the muzzle spark and spark at the bullet trap was found in CCTV footage, and the impact of a stray bullet failed to ignite gunpowder. Cigarette was therefore presumed to be the most likely source of ignition among the potential sources. It appeared that the explosion in the shooting area was caused by violent burning of the polyurethane sound absorber and unburned gunpowder accumulated on it. The fire safety measures include prohibit of use of profile polyurethane sound absorber, removal of steel components from bullet trap, clean up and control of unburned gunpowder, etc.

Frequent Forest Fire in Kosong-Gun, Kangwon Province (고성지방의 산불발생)

  • 이장렬
    • The Korean Journal of Quaternary Research
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    • v.16 no.2
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    • pp.1-8
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    • 2002
  • In this paper, the writer attempts to clarify causes by general man and weather factor on forest fire occurrence in Kosong-Area, 1995-2001. The major results are summarized as follows: The forest fire at Kojin-ri, Sonyusil-ri and Majwa-ri occurred at the same area over 3 times and that Hakya-ri, Songdae-ri and Inhung-ri, at the adjoining land over 3times. In the total 46 times of forest fire, fire frequence was greatest in March(11 time) and April(11 time) followed by November(7 time), January(6 time), February(6 time). December(3 time), October(2 time). Hours on frequent forest fire are from 11:00 till 18:00. Number for forest fire occurrence by causes was greatest in military training followed by burning paddy fields, debris burning, burning agricultural debris, visiting a grave, cigarette and arson. Frequent forest fire in Kosong-Area coincide not only with above normal temperatures, but also with below normal relative humidity. When the strong winds appear at Kosong-Area, the properties of daily surface chart re the south high and north low pressure pattern in the Far East Asia.

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Moisture Content of Litter Layer and Its Combustibility by Cigarette Light in Forests (森林內 落葉層의 含水量과 담뱃불에 의한 可燃性)

  • 김관수;장인수;김수정
    • The Korean Journal of Ecology
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    • v.17 no.1
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    • pp.1-9
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    • 1994
  • This study focuses on forest fires attributed to cigarette light, the main source of wild fires, by examining the characteristics of the fire types. It aims to present useful data for preventive measures. Statistics show that the average length of cigarette butts left after smoking is 30mm excluding filter for domestic cigarette smokers. Also the average thickness of litter layer in forests is 58.2mm throughout the nation. The value varies according to how often leaves were trodden by hikers : the accumulation amount of Mt. Sunchi. which is relatively protected from human disturbances, is 29.6% more than that of Mt. Kye-Ryong National Park. Aged trees such as Pznus rzgidu, Quercus acutissima and Larix leptolepis have relatively large inflammable contents, 2.43kg in 15 year-old stand and 2.55kg in 10 year-old stand. This study found out the following fact with regard to the start of lighting and the out-break of fire. Fire breaks out within five minutes in the sample(C), in which Zoysza gaponica and Populus X tomentiglandulosu has been tramped when the sample has 2~6 percent of moisture contents. Coniferous trees such as Pinus rigida and Larzx leptolepis do not burn easily while leaving charcoal. In contrast, deciduous trees with Zoysia japonzca and Populus X tomentiglandulosu are quick to catch fire. As a result of the experiments, it is proved that cigarette light is a very dangerous cause of wild fire especially for dry grass like Zoysia gaponica.

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