• Title/Summary/Keyword: fire statistics

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A Study on the Optimization Method for Evacuation Procedure on Fire in Public Facilities - Focusing on Multiplex - (다중이용시설의 화재 시 피난절차 최적화 방안 연구 - 멀티플렉스를 중심으로 -)

  • Shin, Young-Min;Lim, You-Ri;Ahn, Yong-Han
    • Fire Science and Engineering
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    • v.33 no.1
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    • pp.113-120
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    • 2019
  • The disaster and safety R&D budget has continued to increase since 2008, but the fire safety R&D budget is a small part. Therefore, successful outcomes that could lead to the economic growth of the fire safety industry have not been achieved. This paper suggests a fire safety R&D budget expansion, reinforcement of R&D capacity, and performance growing plan by analyzing the factors that affect the performance of a fire safety R&D project. Empirical analysis was performed through one-way ANOVA and regression analysis using the statistical program, SPSS statistics 21.0. As a result, this study suggests that the continuous expansion of R&D funds and the securing of excellent trained research manpower will be necessary to obtain qualitatively superior patents and papers.

Research on Characteristics of Arcing Circuit and Evaluation of Societal Cost caused by AFCI Installation (아크 회로의 특성 분석 및 AFCI 설치로 인한 사회적 비용평가에 관한 연구)

  • Park, Chee-Hyun;Bae, Suk-Myeong;Lim, Yong-Bae;Kim, Gi-Hyun;Choi, Myung-Il
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.21 no.8
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    • pp.144-150
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    • 2007
  • As usage of electric power is increased, the electric fire accident occurrences are growing, too. According to statistics it can be known that electric fire occupies the most weight. However, the method that can detect electric fire accurately is not being developed yet. This paper analyzes the cause of electric fire and the characteristics of Arc Fault Circuit Interrupter(AFCI). First this paper compares AFCI with existing molded-case circuit breaker and finds the hazards caused by arc through power calculation and compares with danger by short circuit. And we suggest the necessity of AFCI through studying relationship of AFCI installation and societal cost.

Impact of Psychosocial Wellbeing Status and Self Leadership on the Job Satisfaction of Fire Officers (소방공무원의 사회심리적 건강수준과 셀프 리더십이 직무만족도에 미치는 영향)

  • Lee, Hyun-Ju;Park, Hyoung-Sook
    • Journal of Korean Academy of Fundamentals of Nursing
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    • v.25 no.2
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    • pp.89-98
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    • 2018
  • Purpose: The purpose of this study was to examine the relationship of psychosocial wellbeing status and self leadership with job satisfaction of fire officers. The effects of these variables on job satisfaction were also examined. Methods: The study design was a descriptive, correlational design. For this study, data were collected from 189 fire officers in B metropolitan city, K and Y cities. Data were analyzed using descriptive statistics, t-test, one-way ANOVA, and multiple regression analysis with SPSS 21.0 program. Results: The results showed that job satisfaction had a significant correlation with psychosocial wellbeing status (r=-.38, p<.001) and self leadership (r=.26, p<.001). Psychosocial wellbeing status had a significant correlation with self leadership(r=-.47, p<.001). Multiple regression analysis for job satisfaction revealed that the most powerful predictor was psychosocial wellbeing status followed by self leadership. Pychosocial wellbeing status, self leadership, age, marital status and current job task career explained 25.0% of the variance in job satisfaction. Conclusion: Findings indicate that various factors are related to the job satisfaction of fire officers. Based on the results of this study, further development and application of programs to improve fire officers' job satisfaction are needed.

Predicting of Ignition Time and Critical Distance for Ignition of Douglas fir by Radiant Heat of Incandescent Lamp (백열전구 복사열에 의한 미송판의 발화 임계거리 및 발화시간 예측)

  • Lee, Heung-Su;Kim, Doo-Hyun
    • Journal of the Korean Society of Safety
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    • v.31 no.2
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    • pp.18-25
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    • 2016
  • The incandescent lamp is an electric light fixture with a tungsten filament heated to a high temperature, by passing an electric current through it, until it glows with visible light. The hot filament is protected from oxidation with a glass bulb that is filled with inert gas. The incandescent lamp has fire risk when combustible materials are close to its glass bulb. Because its lamp has the property which converts 90~95 percents of the electric power to heat energy. 2015 national fire statistics show that fires caused by lighting fixtures were 652 cases, and incandescent lamps(44 cases) and halogen lamps(53 cases) accounted for 15 percents in those of high heating light fixtures. Since incandescent lamp fires account for about 45 percents in the high heating light fixture, we could not overlook the fire risks by the incandescent lamp. Although many studies related with those have been conducted, incandescent lamp fires are continuously occurred. This study was carried out to study the fire risk of ignition of wood due to radiant heat of incandescent lamp. Radiant heat flux of the incandescent lamp was predicted by applying point source model, and critical distance for ignition of wood was calculated by applying integral model. The results from this study could applied to fire prevention activities related to light bulb, and it could be used in fire cause investigations related to radiant heat of incandescent lamp.

The Analysis of Distribution and Characteristics of Forest Fires Damage over 30 ha in Korea (우리나라 30 ha 이상 산불피해의 분포 및 특성 분석)

  • Lee, Hyung-Seok;Lee, Si-Young
    • Fire Science and Engineering
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    • v.25 no.5
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    • pp.39-46
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    • 2011
  • In order to consider the prevention countermeasure to the occurrence of forest fires, analysing characteristic of the past forest fire data is needed. This research analyzed distribution and characteristics of forest fires damage over 30 ha based on statistics data of forest fires in Korea between 1975 and 2010. As a result, the number of forest fires damage over 30 ha as 23 was most occurred in 1978. Forest fires show an upward tendency from 1970 to 2000. Forest fires of 30 ha~50 ha damaged area was most occurred. Forest fire in Gangwon province was occurred as the number of total 66 (37.0 %). Gangwon province was superior in point density analysis. The number of forest fire occurrence over 30 ha was most high to 114 (63.0 %) in April and to 44 (24.3 %) in Sunday. The occurrence number of forest fire and damage caused by forest fire is increasing more and more since 1975, appropriate authorities can use effectively in devising policy for forest fire prevention from this result.

A Study on the Development of a Fire Site Risk Prediction Model based on Initial Information using Big Data Analysis (빅데이터 분석을 활용한 초기 정보 기반 화재현장 위험도 예측 모델 개발 연구)

  • Kim, Do Hyoung;Jo, Byung wan
    • Journal of the Society of Disaster Information
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    • v.17 no.2
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    • pp.245-253
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    • 2021
  • Purpose: This study develops a risk prediction model that predicts the risk of a fire site by using initial information such as building information and reporter acquisition information, and supports effective mobilization of fire fighting resources and the establishment of damage minimization strategies for appropriate responses in the early stages of a disaster. Method: In order to identify the variables related to the fire damage scale on the fire statistics data, a correlation analysis between variables was performed using a machine learning algorithm to examine predictability, and a learning data set was constructed through preprocessing such as data standardization and discretization. Using this, we tested a plurality of machine learning algorithms, which are evaluated as having high prediction accuracy, and developed a risk prediction model applying the algorithm with the highest accuracy. Result: As a result of the machine learning algorithm performance test, the accuracy of the random forest algorithm was the highest, and it was confirmed that the accuracy of the intermediate value was relatively high for the risk class. Conclusion: The accuracy of the prediction model was limited due to the bias of the damage scale data in the fire statistics, and data refinement by matching data and supplementing the missing values was necessary to improve the predictive model performance.

A study on Fire Case and Countermeasure of Tourist Hotel (관광호텔의 화재손해 위험관리방안 - 화재발생현황과 대형화재사례 분석 중심)

  • Han, Sukman;Son, Jung Hyoun;Kim, Jong Won
    • Journal of the Society of Disaster Information
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    • v.8 no.4
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    • pp.362-375
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    • 2012
  • Tourist hotels are equipped with facilities such as accommodation and restaurants, exercise, recreation. Unspecified guests, visitors and management of tourist hotels are very vulnerable on the casualties and property losses due to fire peril exist. In this study, we analysis that the fire statistics status of tourist hotels from 2001 to 2010. And the 15 cases of a large hotel fire are reviewed. The total number of fires on hotel are consist of a hotel rooms fire(33.2%), a restaurant kitchen fire(11.8%). And the major causes of the fire are an electrical fire (40.8%), a cigarette fire (14.5%) and a hot-work fire (9.2%). In case study, the fire wall defect and combustible materials are major fire loss causes for 10year. Each tourist hotels are needed a development of suitable fire risk management and a field operations. A hotel is required an active fire risk management on a preventive inspection, an education and training, and a preventive maintenance. It is necessary that a fire wall maintenance to prevent of the spread of a fire and a sprinkler installation of whole area to protect fire. And it is very important an emergency response for evacuation of guest, and operate emergency procedures on a fire or emergency situation.

South Asia Research on comparative analysis of fire statistics (동남아시아의 화재통계 비교분석에 관한 연구)

  • Kim, Tae-Hwan
    • Proceedings of the Korea Institute of Fire Science and Engineering Conference
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    • 2010.04a
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    • pp.26-30
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    • 2010
  • 최근 동남아시아에서는 경재성장과 더불어 생활환경의 변화로 인해 대형화재의 발생 증가와 화재의 발생 빈도가 증가하고, 발생패턴 또한 변하고 있다. 이에 본 연구에서는 각 나라의 화재통계 비교분석을 통해 앞으로의 화재발생 경향을 예시하고자, 각국의 인구통계와 화재건수, 사망자수 등의 통계로 비교분석하였다. 각국의 비교에서는 중국 등 일부 나라는 도심지 지역을 제외한 일부지역의 정확한 데이터가 부족하고, 통계 시점이 불명확하였다. 또한, 우리나라는 데이터에 대한 분류방식변화로 통계치에 대한 발생건수 증가에 대한 대안이 있어야 하며, 특히 대만의 경우처럼 타 국가에 비해 급격한 감소 현상에 대한 화재대책방안을 참고 하여야 한다. 종합적으로는 각 나라의 사정은 다르겠지만, 동남아의 특징인 가족중심사회, 도시구조와 생활패턴 및 문화적 공통점을 고려 할 때 표준화된 통계분류방법이 필요하다.

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Analysis on Home Accidents in Korea (가정 내 사고의 발생 실태 분석)

  • Lee Eui-Pyeong
    • Fire Science and Engineering
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    • v.19 no.4 s.60
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    • pp.7-17
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    • 2005
  • On this paper, the actual conditions of home accidents by investigating rescue and emergency reports at fire stations in Gwangju Metropolitan city and annual report on the cause of death statistics in the National Statistical Office were analyzed, and actual conditions about home accidents in developed countries were studied. As a result, the following matters were confirmed: 1) Infants and older adults are the main victims of home accidents, especially the older adults. 2) The more older adults we have in our society, the more deaths caused by home accidents take place. 3) We must study the home accident of our society in the level of developed countries. And we must have the prevention policy about the home accidents.

Recoverability analysis of Forest Fire Area Based on Satellite Imagery: Applications to DMZ in the Western Imjin Estuary (위성영상을 이용한 서부임진강하구권역 내 DMZ 산불지역 회복성 분석)

  • Kim, Jang Soo;Oh, Jeong-Sik
    • Journal of The Geomorphological Association of Korea
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    • v.28 no.1
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    • pp.83-99
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    • 2021
  • Burn severity analysis using satellite imagery has high capabilities for research and management in inaccessible areas. We extracted the forest fire area of the DMZ (Demilitarized Zone) in the western Imjin Estuary which is restricted to access due to the confrontation between South and North Korea. Then we analyzed the forest fire severity and recoverability using atmospheric corrected Surface Reflectance Level-2 data collected from Landsat-8 OLI (Operational Land Imagery) / TIRS (Thermal Infrared Sensor). Normalized Burn Ratio (NBR), differenced NBR (dNBR), and Relative dNBR (RdNBR) were analyzed based on changes in the spectral pattern of satellite images to estimate burn severity area and intensity. Also, we evaluated the recoverability after a forest fire using a land cover map which is constructed from the NBR, dNBR, and RdNBR analyzed results. The results of dNBR and RdNBR analysis for the six years (during May 30, 2014 - May 30, 2020) showed that the intensity of monthly burn severity was affected by seasonal changes after the outbreak and the intensity of annual burn severity gradually decreased after the fire events. The regrowth of vegetation was detected in most of the affected areas for three years (until May 2020) after the forest fire reoccurred in May 2017. The monthly recoverability (from April 2014 to December 2015) of forests and grass fields was increased and decreased per month depending on the vegetation growth rate of each season. In the case of annual recoverability, the growth of forest and grass field was reset caused by the recurrence of a forest fire in 2017, then gradually recovered with grass fields from 2017 to 2020. We confirmed that remote sensing was effectively applied to research of the burn severity and recoverability in the DMZ. This study would also provide implications for the management and construction statistics database of the forest fire in the DMZ.