• 한국화재소방학회논문지
• /
• 제24권3호
• /
• pp.20-24
• /
• 2010

건축물의 화재발생 시 건축물 붕괴방지 및 인명의 피난시간 확보를 위하여 내화구조(내화피복재)를 시공하도록 하고 있으나 실제 규모와 가까운 내화시험의 특성으로 건축물 시공현장에서 내화구조(내화피복재)의 품질을 확인할 수 있는 현장품질방법이 부재하다. 따라서 근-적외선분광분석을 통하여 현장에서 적용할 수 있는 일치성 분석기법 연구를 통해 정확하고 간편한 과학적 내화구조현장관리 시험방법을 제시하고자 함.

• 한국화재소방학회논문지
• /
• 제20권4호
• /
• pp.26-32
• /
• 2006

국내에서는 현재 샌드위치패널의 화재성능 평가를 위하여 KS F 2271(건축물의 내장재료 및 구조의 난연성 시험방법)을 사용하고 있다. 그 중 연기 및 연소독성가스에 대한 시험인 가스유해성 시험은, 건축 재료 및 내장재의 연소시 발생하는 가스의 유해성을 마우스의 평균 행동정지시간으로 측정하는 방법으로, 정량적인 방법이 아니므로 마우스의 상태나 시험조건에 따라 시험결과가 달라질 수 있다. ISO 5659-2 연소챔버 시험방법은 광학밀도를 정량적으로 측정할 수 있으며, FTIR을 이용한 유독가스 분석이 가능하다. 본 연구에서는 ISO 5659-2 연소챔버 시험방법을 사용하여, 국내에서 일반적으로 사용되는 4종의 샌드위치패널 단열재의 광학밀도를 측정하여 각 시험체와 비교하였다. 또한, 시험체마다 3번의 시험 중 두 번째 시험시 FTIR 분석을 수행하여 HCl, $NO_2$ 등의 정량적 결과를 비교하였다.

• 한국건축시공학회:학술대회논문집
• /
• 한국건축시공학회 2022년도 봄 학술논문 발표대회
• /
• pp.77-78
• /
• 2022

This study compared the fire safety standards for windows of Korea, the U.S. and Japan to prevent fire expansion through exterior wall openings, and conducted experiments using PVC and aluminum window frames, which are widely used in Korea.The experiment is KS F 2845 which combines frames of the same thickness and area with single-window form and 1 hour fire resistance glass with 8T thickness. Experiments showed that the PVC window was about 9 minutes and the aluminum window was about 26 minutes. However, in Korea, there are no test standards for windows installed at the opening of the exterior wall. In addition, fire safety standards for windows shall be established along with the designation of fire prevention zones.

• 선박안전
• /
• 통권21호
• /
• pp.15-30
• /
• 2006

A study developing the dry powder fire extinguishing system inside the simulated machinery spaces of small boats was performed. Fire tests were conducted inside the compartments having volumes 2.9, 4.5, 8㎥ respectively. The openings and fans were estavlished on the walls of the compartments. Diesel oil was used for the test ruel, In addition fire extinguishing nozzles using dry powder were installed downward at ceiling and horizontally at the wall or conner. All fires in the test were extinguished under system activation and there was no reignition.

• International Journal of Aerospace System Engineering
• /
• 제9권1호
• /
• pp.1-15
• /
• 2022

Pyrotechnic initiators provide a source of pyrotechnic energy used to initiate a variety of space mechanisms. Pyrotechnic systems build in electromagnetic environment that may lead to critical or catastrophic hazards. Special precautions are need to prevent a pulse large enough to trigger the initiator from appearing in the pyrotechnic firing circuits at any but the desired time. The EMC verification shall be shown by analysis or test that the pyrotechnic systems meets the requirements of inadvertent activation. The MIL-STD-1576 and two range safeties, AFSPC and CSG, require the safety margin for electromagnetic potential hazards to pyrotechnic systems to a level at least 20 dB below the maximum no-fire power of the EED. The PC23 is equivalent to NASA standard initiator and the 1EPWH100 squib is ESA standard initiator. This paper verifies the two safety margins for electromagnetic potential hazards. The first is verified by analyzing against a RF power. The second is verified by testing against a DC current. The EMC safety margin requirement against RF power has been demonstrated through the electric field coupling analysis in differential mode with 21 dB both PC23 and 1EPWH100, and in common mode with 58 dB for PC23 and 48 dB for 1EPWH100 against the maximum no-fire power of the EED. Also, the EMC safety margin requirement against DC current has been demonstrated through the electrical isolation test for the pyrotechnic firing circuits with greater than 20 dB below the maximum no-fire current of the EED.

• 대한안전경영과학회지
• /
• 제14권2호
• /
• pp.65-70
• /
• 2012

This study was performed to test the combustive properties of the pipe insulation materials which are mainly used in the industries and buildings. Fire characteristic test of pipe insulation film according to the KS F ISO 5660-1 was performed. The experimental materials commonly used in the pipe insulation were used four kinds of films. Two kinds of 4 types of products that have the flame retardant performance and the other two types of them have no flame retardant performance. They were selected for fire characteristic test. The result of finding 25kW/$m^2$ radiation from the ignition was that flame retardant products were 140sec and the other one were 69sec in average of heat release rate(HRR). The result of flame retardant products in the 50kW/$m^2$ was 34sec and the other one were 15sec in average of HRR. However, the HRR of flame retardant products was much higher than the other one. Flame propagation test was conducted according to the KOFEIS 1001. The result of flame retardant products was that flame retardant products had a hold without fire spread after firing them. But the other one were completely fired after firing them. Therefore, I want to recommend that flame retardant products need to be used by the regulation to prevent or decrease a fire spread.

• 한국안전학회지
• /
• 제23권3호
• /
• pp.30-35
• /
• 2008

The recent fire incident in an elementary school of Chonan city causes the media focus on the fire safety of residential container buildings. In this study, real fire tests were conducted in this kind of buildings. Combustion products including $O_2$, $CO_2$, CO, $NO_x,$, $SO_x$, HCI, HCN were measured, in order to investigate the hazard-reduction effects of employing gas mask protected with filter during the fire emergency of residential container buildings. According to the test results, whether or not employing the filter showed a sheer difference in the toxicity of the fire-induced gases, and then the importance of wearing a gas mask was evidently demonstrated.

• 한국태양에너지학회 논문집
• /
• 제28권4호
• /
• pp.10-16
• /
• 2008

The fire resistance of thermal insulation and interior finishing materials is recently much emphasized after the fire accident at the Icheon Cold Store in January 2008. Three kinds of thermal insulation are used in buildings. They are Organic, Non-organic and cellulosic insulation. Organic insulation such as polystyrene foam board and urethane foam has high thermal resistance but it has no fire resistance. While non-organic insulation such as rockwool and glassfiber has high fire resistance, it has lower thermal resistance than organic insulation. Cellulose insulation is primarily manufactured from recycled newsprint or cardboard using shredders and fiberizers. Despite of its environmental friendliness and high thermal resistivity, its domestic use has not much increased because of the prejudice that paper can easily burn. However, the cellulose insulation as a product is about 80 wt.% cellulosic fiber and 20 wt.% chemicals, most of which are fire retardants such as boric acid and ammonium sulfate. It is required to secure its fire safety for more consumption as a building insulation in Korea. Therefore, this study investigates the fire resistance of Korean cellulose insulation according to the rate of fire retardant and finally presents the optimum rate of fire retardant in cellulose as building insulation. The fire safety test was conducted according to the ASTM C 1485-00. The test results indicate that above 18 wt% of fire retardant is necessary to secure the fire safety of cellulose insulation.

• 한국화재소방학회논문지
• /
• 제23권5호
• /
• pp.32-42
• /
• 2009

본 연구는 국내의 화재조사전문교육 운영 실태를 분석하고 개선방안을 도출하는데 있다. 연구결과 현재의 화재조사전문교육은 공적영역(소방, 경찰, 전기안전공사, 가스안전공사 등) 중심으로 이루어지고 있으며 중앙소방학교에서 실시하고 있는 교육이 가장 체계적인 것으로 나타났다. 그리고 사적영역(화재피해이재민, 일반국민 등)을 대상으로 하는 화재조사전문교육은 거의 이루어지고 있지 않는 것으로 나타났다. 이러한 문제점을 개선하기 위해서 현행 중앙소방학교를 평생교육체제로 전환하여 대학의 학위과정과 연계하고 소방방재청에서 시행하고 있는 화재조사관자격증 제도를 외부에 개방 및 학습수준별 5단계로 나누어 운영할 것을 제안하였다.

• 한국화재소방학회논문지
• /
• 제33권1호
• /
• pp.147-155
• /
• 2019

본 연구는 요양보호사 교육생들을 대상으로 화재안전교육의 효과를 규명하기 위한 유사실험연구로 비동등성 대조군 전후시차설계(Non-equivalent control group no-synchronized design)이다. 연구대상자는 S요양보호사 교육원의 교육생으로 실험군 28명, 대조군 29명으로 총 57명 이었다. 실험처치기간은 2018년 5월 21일부터 6월 14일까지 주 1회씩 총 4회로 구성하여 화재안전교육을 실시하였다. 자료분석은 ${\chi}^2-test$, t-test로 분석하였다. 연구결과 화재안전교육은 요양보호사 교육생들의 화재안전에 대한 지식, 화재안전에 대한 태도, 화재안전에 대한 지각된 행동통제, 화재안전 행동의도, 화재안전 행동을 증진시키는데 효과적인 교육으로 일상생활에서 화재안전행동실천에 유용하게 활용될 수 있을 것이라 기대된다. 반면 화재안전에 대한 주관적 규범은 유의한 차이가 없는 것으로 나타나 화재안전에 대한 주관적 규범의 효과를 검증하는 후속연구를 제언한다.