• Title/Summary/Keyword: Fire-Fighting Safety

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The study on application of automatic monitor system for initial fire suppression in double-deck tunnel (대심도 복층터널 초기화재 진압을 위한 자동모니터 소화설비의 적용성 연구)

  • Yoo, Yong-Ho;Park, Sang-Heon;Han, Sang-Ju;Park, Jin-Ouk
    • Journal of Korean Tunnelling and Underground Space Association
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    • v.18 no.5
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    • pp.419-429
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    • 2016
  • In a bid to avoid the economic loss resulting from traffic jam in urban area, a deep underground road at 40 m depth has been considered and the first class disaster prevention facilities shall be applied according to domestic guideline. Automatic-monitoring fire extinguishing system designed to use for fire fighting has been widely applied at home and abroad. Recently development and commercialization through theoretical and experimental research to apply to road/railroad sector have been underway. Based on such performance of automatic fire extinguishing system, technical/economic analysis of existing water spray systems was conducted and as a result, it has demonstrated the superiority in terms of fire suppression as well as in cost efficiency. Then to commercialize this system, more diverse studies that will incorporate the characteristics of domestic tunnels are needed and should the system be promoted through institutional improvement, it's expected to become one of the advanced nations with own original technology in a life safety system industry throughout the world.

Analysis of Evacuation Time According to Variation of Evacuation Stairs' Width in Large-Scale Goshiwons (대규모 고시원의 피난계단 폭의 변화에 따른 피난소요시간 분석)

  • Oh, Su-cheol;Kong, Ha-Sung
    • The Journal of the Convergence on Culture Technology
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    • v.8 no.5
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    • pp.641-651
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    • 2022
  • This research compares and analyzes evacuation time depending on the change in stair width in case of fire at Goshiwons. For this, a simulation has been conducted based on possible evacuation time according to the calculation method for the number of people admittable to a specific target for fire fighting equipped with accommodation. Currently, Gosiwon, which is classified as an accommodation facility (a total floor area of 500 m2 or more), uses blind spots prescribed by the Fire Services Act, Building Act, and Parking Act to build a high-rise building on a small area of land, and most Gosiwon is transformed into a modified accommodation. This is in line with the owner's operating profit, so it is expected to show a continuous increase. Securing the golden time of Gosiwon evacuation time is the last bastion of Gosiwon residents who belong to the economically disadvantaged in our society, and we hope this study will serve as a starting point for discussions on revising related laws and regulations to establish a social safety net As a result of the evacuation simulation analysis, the evacuation time was the least when the width of the group and the evacuation stairs were expanded to 200cm, and the evacuation time of the existing building was reduced by up to 166.3 seconds by comparing 648.4 seconds and scenario 6. This analysis can be meaningful, in that the width of the evacuation stairs revision of related laws and regulations for the safety of multiplex available premises.

A Suitability Analysis on the legal standards of the Rural Housing Standard Plans (농촌주택 표준설계도의 관련 법적 기준에의 적합성 분석 연구)

  • Jeon, Young-Hoon;Shin, Doo-Sik
    • Journal of the Korean Institute of Rural Architecture
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    • v.15 no.4
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    • pp.1-8
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    • 2013
  • The Rural Housing Standard Plans for improving the quality of life and housing stability in rural areas has been developed 87 types from 1994 to 2012. However, some types of Plans do not satisfy the current legal standard in accordance with social and legal changes. Standard plans has the same effect as a building permit, and replace it, so legal suitability of Plans is an important. Therefore, it is required the suitability analysis on the legal standards of Rural Housing Standard Plans. The Purpose of this study is to derive improper types and items of the Rural Housing Standard Plans on the legal standards. In this study, we analyzed its suitability on the legal standards(law on fire-fighting system installation and safety management, energy saving design criteria for buildings, structural checklist for small buildings, the types of drawing for building permit) in accordance with "rules for the operation of standard plans". And we analyzed the utilization of the Rural Housing Standard Plans through downloads from welchon portal.

Study on the Fire Cause Analysis for Explosives Waste by Thermal Analysis Experiment (열분석 실험에 의한 화약류 폐기물의 화재원인분석에 관한 연구)

  • Koh, Jae-Sun
    • Journal of the Society of Disaster Information
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    • v.14 no.1
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    • pp.89-100
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    • 2018
  • when the explosive wastes to be treated as designated wastes are brought into the wastes treatment plant by mistake and lead to an explosion in the wastes disposal process, many people and property damage are involved. Waste should be treated properly. As mentioned in this paper, ignition reac- tion tests of ignitable re-burning of explosives packing material waste (solid butadiene) confirmed that ignition was easily occurred, and that even small ignition sources were easily ignited and burned quickly and explosively. In particular, when explosives are loaded into incineration wastes in large quantities and mixed with organic compound wastes, such as fire and explosion accidents caused by explosives packing materials at waste disposal sites, flammable and oxidative gases are generated due to mutual oxidation and pyrolysis It is confirmed that there is a possibility that ignition sources such as spark ignite and instantaneously lead to explosion. It is hoped that this study will be a small reference for on - site detection in the field of fire, and it is expected that the fire - fighting agency will be recognized as a fire investigation agency and will contribute to the improvement of the credibility.

Study on the Fire Risk Prediction Assessment due to Deterioration contact of combustible cables in Underground Common Utility Tunnels (지하공동구내 가연성케이블의 열화접촉으로 인한 화재위험성 예측평가)

  • Ko, Jaesun
    • Journal of the Society of Disaster Information
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    • v.11 no.1
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    • pp.135-147
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    • 2015
  • Recent underground common utility tunnels are underground facilities for jointly accommodating more than 2 kinds of air-conditioning and heating facilities, vacuum dust collector, information processing cables as well as electricity, telecommunications, waterworks, city gas, sewerage system required when citizens live their daily lives and facilities responsible for the central function of the country but it is difficult to cope with fire accidents quickly and hard to enter into common utility tunnels to extinguish a fire due to toxic gases and smoke generated when various cables are burnt. Thus, in the event of a fire, not only the nerve center of the country is paralyzed such as significant property damage and loss of communication etc. but citizen inconveniences are caused. Therefore, noticing that most fires break out by a short circuit due to electrical works and degradation contact due to combustible cables as the main causes of fires in domestic and foreign common utility tunnels fire cases that have occurred so far, the purpose of this paper is to scientifically analyze the behavior of a fire by producing the model of actual common utility tunnels and reproducing the fire. A fire experiment was conducted in a state that line type fixed temperature detector, fire door, connection deluge set and ventilation equipment are installed in underground common utility tunnels and transmission power distribution cables are coated with fire proof paints in a certain section and heating pipes are fire proof covered. As a result, in the case of Type II, the maximum temperature was measured as $932^{\circ}C$ and line type fixed temperature detector displayed the fire location exactly in the receiver at a constant temperature. And transmission power distribution cables painted with fire proof paints in a certain section, the case of Type III, were found not to be fire resistant and fire proof covered heating pipes to be fire resistant for about 30 minutes. Also, fire simulation was carried out by entering fire load during a real fire test and as a result, the maximum temperature is $943^{\circ}C$, almost identical with $932^{\circ}C$ during a real fire test. Therefore, it is considered that fire behaviour can be predicted by conducting fire simulation only with common utility tunnels fire load and result values of heat release rate, height of the smoke layer, concentration of O2, CO, CO2 etc. obtained by simulation are determined to be applied as the values during a real fire experiment. In the future, it is expected that more reliable information on domestic underground common utility tunnels fire accidents can be provided and it will contribute to construction and maintenance repair effectively and systematically by analyzing and accumulating experimental data on domestic underground common utility tunnels fire accidents built in this study and fire cases continuously every year and complementing laws and regulations and administration manuals etc.

A Study on the Actual Condition on the Safety Education and General Safety Awareness of High School Students by Gender and School Type in Chungnam Area (충남지역 고등학생의 안전교육과 일반안전인식에 대한 성별, 학교유형별 실태 조사 연구)

  • Kim, Suk Hee;Hong, Young Ho
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.22 no.1
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    • pp.691-702
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    • 2021
  • This study aimed to provide basic data for safety education by surveying the status of safety education and general safety awareness among high school students by gender and school type in Chungnam area. From July 16th to October 15th, 2015, 1214 copies collected from 16 schools were analyzed using SPSS ver 23.0. Regarding safety education, females and general high school students (GHS) responded more frequently that safety education was more necessary for school life compared to males and specialized high school students (SHS), whereas males were more interested in safety education content than females. Males and SHS lost interest when learning unfamiliar content compared to females and GHS, respectively. In terms of general safety awareness, males and GHS usually followed safety rules better than females and SHS, and males demonstrated greater knowledge of first aid. Males and SHS acted according to their beliefs towards safety rather than knowledge compared to females and GHS, respectively. This study found a significant difference in safety education and general safety awareness among high school students by gender and type of school, and the results suggest that differentiated safety education is necessary.

Model for the Structural Relationships of Behavioral Attitude, Subjective Norm and Perceived Behavioral Control to Safety Intention and Safety Behavior in 119 Emergency Medical Technicians (119구급대원의 행위태도, 주관적 규범 및 지각된 행위 통제가 안전의도, 안전행동에 미치는 영향에 관한 구조적 관계 모형)

  • Moon, Tae-Young;Choi, Mi-Young
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.19 no.9
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    • pp.215-224
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    • 2018
  • The purpose of the this study was to verify a model for the structural relationships of the behavioral attitude, subjective norm and perceived behavioral control of 119 emergency medical technicians to their safety attitude and safety behavior. A survey was conducted on 373 male and female 119 emergency medical technicians who were working as fire-fighting officers in Seoul, Inheon, Gangwon Province, Daegu, South Chungcheong Province, North Gyeongsang Province and Busan. The collected data were statistically analyzed by SPSS 20.0 and AMOS 16.0. The findings of the study were as follows: First, the behavioral attitude of the 119 emergency medical technicians was found to have affected and safety behavior(t=.32, p<.001). Second, the subjective norm of the 119 emergency medical technicians was found to have exerted an influence on their safety attitude and safety behavior(t=.27, p<.001). Third the perceived behavioral control of the 119 emergency medical technicians was found to have influenced their safety attitude and safety behavior(t=.28, p<.001). Fourth, the safety attitude of the 119 emergency medical technicians was found to have had an impact on their safety behavior(t=.39, p<.001).

Psychological burden for legal responsibility of 119 emergency personnels (119구급대원의 법적책임에 대한 심리적 부담감)

  • Lim, Jae-Man;Yun, Seok-Jeong;Lim, Gwan-Su;Kang, Shin-Kap;Choi, Eun-Sook;Seo, Kyung-Hee
    • The Korean Journal of Emergency Medical Services
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    • v.13 no.1
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    • pp.87-96
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    • 2009
  • Purpose : To grasp the mental burden for legal responsibility that rescue members have in the performance of job. Method : Questionnaire was presented to rescue members serving in 2 direct control safety centers of fire station located in Seoul, Daejon, Incheon, Kwangju, Busan, Daegu and Ulsan. Results : 1. Questioned whether they have mental burden for legal responsibility while performing job on the site, the rescue members responded : very burdensome in 38.0%, burdensome in 56.0%, moderate in 4.5%, not burdensome in 1.0%, no burden at all in 0.5%. 2. Questioned on the first aid treat for which they have the most mental burden, the rescue members responded : intubation into trachea laryngeal mask airway(LMA) in 40.4%, automatic external defibrillator in 16.3%, securing vein providing sap(medicine) in 10.8%, basic cardiopulmonary resuscitation in 7.2%, eliminating foreign matters inserted into body in 5.4%, stanching external bleeding and treating injury in 5.4%, fixing extremities and spine by using splint in 1.8%, measuring the symptom of vitality in 1.2%, providing oxygen in 0.0%. 3. Questioned whether experiencing legal problem or firm petition(complaint) raised by patient while serving as rescue members, they responded : experiencing a complaint in 41.6%, experiencing no complaint in 58.4%. Asked to indicate the stress level in the scale of which they suffered when lawsuit or firm petition was raised, 0(weak)-10(strong), they answered 8.8 in average. 4. Questioned whether 119 rescue members put the legal responsibility in case that they cause damage to patients intentionally in performing, they responded to the inquiry 3.66 in average(of 5.00). It represented meaningful differences (F=2.874, p=.024) whether they had license or not. 5. In future, legal action will raise against the rescue member by 99% because of people's rights improvement(63.1%), high expectations for the rescue system(29.5%), non-licensed rescue members(5.1%). Conclusion : It was found that the rescue members had severe mental burden for advanced life support which was investigated to have low enforcement rate in the preceding research, for instance, intubation into trachea securing vein management by using automatic external defibrillator. To improve the qualitative level of rescue service in the fire fighting, it may be required to construct the environment that eliminates the mental burden of rescue members for legal responsibility.

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A Study on the Factors of Safety Enhancement in Mass Casualty Incidents (다수 환자 발생 시 안전 증진 요인에 관한 연구)

  • Lee, Jeong-Hyeok;Park, Joung-Je;Kim, Bo-Kyun
    • Journal of Korea Entertainment Industry Association
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    • v.13 no.4
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    • pp.229-240
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    • 2019
  • Korea is experiencing various disasters both natural and artificial. This study is descriptive research designed to examine the perception of the disaster response ability of fire-paramedics during the response stage of disaster management. The subjects of this study were EMT-P's who had more than 2 years of experience in the field at a fire station in G Province. The questionnaire, including the items for the sub-factors of the field response ability, were prepared and 161 final questionnaires were collected and analyzed with the SPSS program. The mean scores of triage ability, patient treatment ability, patient transfer ability, disaster support ability, and disaster response speed were 3.53, 3.68, 3.66, 2.95, and 3.44, respectively. As a result of multiple regression analysis, variables affecting the speed of disaster response were in the order of patient treatment ability, patient transfer ability, and disaster support ability. In conclusion, fire-paramedics will have to consider the ability to treat patients, transfer patients, and disaster support to improve disaster response speed, and, ultimately, disaster response guidelines should be developed to improve disaster response capabilities.

Study on Fire Hazard Analysis along with Heater Use in the Public Use Facility Traditional Market in Winter (겨울철 다중이용시설인 전통재래시장 난방기구 사용에 따른 화재 위험성 분석에 관한 연구)

  • Ko, Jaesun
    • Journal of the Society of Disaster Information
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    • v.10 no.4
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    • pp.583-597
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    • 2014
  • Fire caused by heater has various causes as many as the types of heater. also, lots of damage of human life and property loss are caused, since annually continuous fire accident by heater in traditional market is frequently occurring. There are not many cases of fire due to heater in most of residential facilities such as general house, apartments, etc., because they are supplied with heating boiler, however the restaurant, store and office of the market, sports center, factory, workplace, etc. still use heater, e.g. oilstove, electric heater, etc., so that they are exposed to fire hazard. Also, when investigating the number of fire due to heater, it was analyzed to occur in order of home boiler, charcoal stove, oilstove, gas heater/stove, electric stove/heater, the number of fire per human life damage was analyzed in order of gas heater/stove, oil heater/stove, electric heater/stove, briquette/coal heater. Also, gas and oil related heater were analyzed to have low frequency, however, with high fire intensity. Therefore, this research aimed at considering more scientific fire inspection and identification approach by reenacting and reviewing fire outbreak possibility caused by combustibles' contact and conductivity under the normal condition and abnormal condition in respect of ignition hazard, i.e. minimum ignition temperature, carbonization degree and heat flux along with it, due to oilstove and electric stove, which are still frequently used in public use facility, traditional market, and, of which actual fire occurrence is the most frequent. As the result of reenact test, ignition hazard appeared very small, as long as enough heat storage condition is not made in both test objects(oilstove/electric stove), however carbonization condition was analyzed to be proceeded per each part respectively. Eventually, transition to fire is the ignition due to heat storage, so that it was analyzed to ignite when minimum heat storage temperature condition of fire place is over $500^{\circ}C$. Particularly, in case of quartz pipe, the heating element of electric stove, it is rapidly heated over the temperature of $600^{\circ}C$ within the shortest time(10sec), so that the heat flux of this appears 6.26kW/m2, which was analyzed to result in damage of thermal PVC cable and second-degree burn in human body. Also, the researcher recognized that the temperature change along with Geometric View Factor and Fire Load, which display decrease of heat, are also important variables to be considered, along with distance change besides temperature condition. Therefore, the researcher considers that a manual of careful fire inspection and identification on this is necessary, also, expects that scientific and rational efforts of this research can contribute to establish manual composition and theoretical basis on henceforth fire inspection and identification.