• Title/Summary/Keyword: 화재위험도

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위험관리정보 - 9V 배터리의 단락회로 분석

  • 한국화재보험협회
    • 방재와보험
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    • s.137
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    • pp.38-43
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    • 2010
  • 트랜지스터 또는 "트랜지스터 라디오" 배터리라고 부르고 어디에서나 흔히 볼 수 있는 9V PP3 건전지는 일반적으로 작은 크기로 인한 내부위험 또는 소각하여 폐기할 때에 발생하는 폭발 위험 이외의 중대한 위험을 내포하지 않는 것으로 알려져 있다. 후자의 위험은 모든 다른 배터리에도 적용된다. 그러나 약간 높은 에너지 밀도와 PP3 배터리 단자의 구조는 일부 사례에서 배터리의 낮은 내부 임피던스와 결합하여 단락 물질에 충분한 열을 발생시켜서 그것과 접촉하고 있는 가연물을 손상시키거나 점화시킬 수 있는 단락위험을 발생시킬 수 있다. 이 현상을 증명하기 위해 이 논문은 PP3 건전지의 단락시험에서 기록된 자료와 관찰사항을 기술한 것이다. 이 시험에는 2개 세트의 배터리, 완전 충전된 새 배터리와 완전 방전되지 않은 배터리(이 문서에서 "일부 사용된 배터리"라고 한다)를 사용하였다.

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A Case Study on the Propagation Process of Market Fire in Korea - in the Case of the Sinjin Market Fire (시장화재의 전파과정에 관한 사례조사 연구 - 신진시장 화재를 중심으로)

  • Koo, In-Hyuk;Shin, Yi-Chul;Kwon, Young-Jin;Hayashi, Yoshihiko;Ohmiya, Yoshifumi
    • Proceedings of the Korea Institute of Fire Science and Engineering Conference
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    • 2010.04a
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    • pp.43-47
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    • 2010
  • 우리나라는 최근 건축물 화재 및 시장화재가 지속적으로 증가해 왔다. 이 중 시장화재는 일반적인 화재와 달리 대형화재로 확대될 위험성이 높다. 본 연구에서는 종로구 신진시장 화재사례를 중심으로 시장화재 전파과정을 분석한 결과 지붕을 통한 화염전파가 주된 확대원인인 것으로 나타났다. 따라서 향후 이러한 전파과정을 고려한 화재위험성평가수법의 개발이 필요하다고 판단된다.

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Fire Occurrence Pattern Analysis and Fire Risk Calculation of Jinju City (진주시 화재발생 패턴분석과 위험등급 산출)

  • Bae, Gyu Han;Yoo, Hwan Hee
    • Journal of Korean Society for Geospatial Information Science
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    • v.22 no.4
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    • pp.151-157
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    • 2014
  • Diverse and complex facilities have been on the increase in urban areas in accordance with rapid urbanization. Along the lines of the increase in facilities, the risk of fire has increased. In particular, fire accidents as well as traffic accidents accounted for the highest rate in artificial disasters. Therefore, the National Fire Information Systems managed by the National Emergency Management Agency (NEMA) appeared for the effective fire management. The NEMA has provided the public with the Internet services regarding information about fire outbreak since 2007. This study acquired data from both NEMA and the Jinju City Fire Department. It constructed the fire data of Jinju City and calculated the change in spatial density targeting fire, occurred in Jinju city with a view to examining the fire risk of facilities by conducting a time series analysis on the trends of fire outbreak over a span of periods between 2007 and 2013. It also conducted an analysis of Moran's I, Getis-Ord Gi. Therefore, it came to select higher hot spots in terms of fire location and fire density. In addition, it attempted to calculate the levels of fire hazard by drawing up the matrix of personal injury and property damage, depending on facilities to present the methods, which can predict the risk of fire occurrence in urban areas.

화재안전 및 보험상식 - 여름철 풍수재해 위험관리 및 보험

  • 한국화재보험협회
    • 방재와보험
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    • s.141
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    • pp.58-59
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    • 2011
  • 기후변화와 지구온난화 등으로 인한 기상이변으로 최근 50년간 집중호우일수가 50% 증가하고, 강우패턴 변화로 인한 기상재해 총 피해액은 연평균 2조 9천억 원에 달하는 등 풍수재로 인한 피해가 매년 급증하고 있다. 특히, 여름철에 발생되는 태풍이나 홍수에 의한 자연재해로 보험사고가 빈번하여, 이번 호에는 여름철 풍수재해 위험 관리 및 재해유형별 보험상식에 대하여 알아보고자 한다.

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지상중계 - "2005 풍수재해대책 세미나" 발표내용 요약

  • Korea Fire Protection Association
    • 방재와보험
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    • s.109
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    • pp.2-5
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    • 2005
  • 한국화재보험협회는 지난 6월 29일 "2005 풍수재해대책 세미나"를 개최하여 강풍에 대한 위험평가, 호우정책 및 기술개발, 풍수해 보험법 및 제도, 사업장에서의 풍수재해 위험 드에 대하여 문제점을 제시하고 대책을 찾아보는 자리를 마련, 지난 호에 관련기사를 게재한 바 있다. 지난 호에 이어 이번 호에서는 발표 내용을 요약해서 소개하도록 한다.

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An Experimental Study on the Fire Risk of Electric Heaters According to Contact of Flammable Materials (가연물 접촉에 따른 전기히터의 화재위험성에 관한 실험적 연구)

  • Lee, Sung-Ryong
    • Fire Science and Engineering
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    • v.25 no.3
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    • pp.63-71
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    • 2011
  • In this study, it was evaluated the fire risk of an electric heater as representative seasonal appliances. Two type of electric heaters were used in experiments. When electric heaters were operated, temperature variation was measured around the heater. Internal structure was understood by Nondestructive inspection. It was evaluated the tire risk of electric heaters, when flammable materials were positioned ear a heater. It was also estimated the probability of a tire in case of malfunction of a safety tip-over witch. When a heater was operated in a normal condition, temperature was maintained under $80^{\circ}C$ around the heater. The possibility of a fire is very high, when a heater is covered with flammable materials or malfunction of safety parts (safety tip-over switch, anti-overheating devices).

Heat Risk Assessment of Wood Coated with Boron/Silicone Sol (붕소/실리콘 졸로 도포된 목재의 열위험성 평가)

  • Jin, Eui;Chung, Yeong-Jin
    • Fire Science and Engineering
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    • v.33 no.3
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    • pp.9-20
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    • 2019
  • This study was examined fire risk properties of wood specimen for the constructional interiors, especially focusing on the fire performance index (FPI) and the fire growth index (FGI) as heat hazard characteristics. Flame retardants were synthesized using boric acid, boronic acid and tetraethoxyorthosilicate. Heat release characteristics were measured by using a cone calorimeter (ISO 5660-1) and cypress was used. The external heat flux as fire intensity was maintained at 50 kW/㎡. The measured fire performance index (FPI) after burning was increased by 1.6 times for boric acid/silicone (BA/Si) sol, each 1.1 times for isobutylboronic acid/silicone (IBBA/Si) sol and phenylboronic acid/silicone (PBA/Si) sol compared with cypress. Fire risk by the fire performance index was increased BA/Si, IBBA/Si ≈ PBA/Si order. The fire growth index was decreased 94% for the BA/Si and 8% for the IBBA/Si sol, and was increased by 17% for the PBA/Si sol. Fire risk by the fire growth index was increased BA/Si, IBBA/Si, PBA/Si order. Overall fire risk was higher in the order of BA/Si < IBBA/Si < PBA/Si.

Methyl alcohol의 농도 변화에 따른 연소속도에 관한 연구

  • 이태구;최재욱;목연수;이내우;정두균
    • Proceedings of the Korean Institute of Industrial Safety Conference
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    • 2001.11a
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    • pp.269-273
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    • 2001
  • 가연성 액체를 취급, 저장 및 수송하는 과정에서 화재폭발의 가능성은 항상 존재하고 있으며, 여러 가지 인적, 물적 원인에 의해서 화재가 발생하면 인명과 재산상의 피해가 많은 대형사고의 성격을 띄고 있다. 이와 같은 화재폭발 사고를 예방하기 위해서 현장에서 취급하고 있는 위험성 물질에 관한 위험특성을 정확하게 파악하여 근본적인 예방대책을 강구하여야 하며, 특히 가연성 액체의 경우에는 위험성의 지표인 연소 특성을 파악하는 것은 대단히 중요하다.(중략)

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A study with more probability for predicting the quantitative severity of fire occurance in department stores (백화점 화재 발생의 확률적 접근에 의한 심각성의 정량적 예측)

  • 구진영;김광열
    • Fire Science and Engineering
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    • v.12 no.1
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    • pp.15-21
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    • 1998
  • In this research, we studied reach the conclusion with more probability for predicting the severity which based on fire cases in domestic department stores for last 30 years. Considering the number of yearly fire cases in department stores and the cost of damage, we set the risk level. Moreover, this research shows the severity of fire in department stores through its scenario applying to FPETOOL program which NIST in USA has developed. By the result of FPETOOL program operation, we could acquired information about the time reaching the point where people are in danger in temperature, smoke layer and gas concentration. When a fire breaks out in a department store, a great loss of property and life is significant, as well as the potential risk is awfully considerable. Therefore, we should prevent a five from occuring.

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A Study on the Fire Evacuation Assessment Considering Occupied Environment Variation in Existing Buildings (기존 건축물의 사용승인허가 전·후 거주환경을 고려한 화재피난성능평가 연구)

  • Kim, Hak Kyung;Choi, Doo Chan;Kim, In Tae;Kim, Hee Moon;Sim, Hye In
    • Fire Science and Engineering
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    • v.30 no.6
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    • pp.105-110
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    • 2016
  • In Korea, fire hazard and risk analysis and response management planning related to existing decrepit buildings, including interior construction and architectural layout revision, due to various occupancy purposes have not been researched or established. Therefore, regulations and technical standards that can manage and reduce fire hazards and risks based on fire hazard analysis and evaluation are required. This study was performed based on a site survey and fire evacuation assessment including performancebased analysis in 3 actual existing buildings to find the life safety issues and provide improvement recommendations.