• International Journal of Safety
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• 제6권2호
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• pp.17-21
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• 2007

This paper aims at the statistical analysis of electrical fire and classification of electrical fire causes to collect electrical fires data efficiently. Electrical fire statistics are produced to monitor the number and characteristics of fires attended by fire fighters, including the causes and effects of fire so that action can be taken to reduce the human and financial cost of fire. Electrical fires make up the majority of fires in Korea(including nearly 30% of total fires according to recent figures), The incorrect and biased knowledge for electrical fires changed the classification of certain types of fires, from non-electrical to electrical. It is convenient and required to develop the standardized form that makes, in the assessment of the cause of electrical fires, the fire fighters directly ticking the appropriate box on the fire report form or making an assessment of a text description. Therefore, it is highly recommended to develop electrical fire cause classification and electrical fire assessment on the fire statistics in order to categorize and assess electrical fires exactly. In this paper newly developed electrical fire cause classification structure, which is well-defined hierarchical structure so that there are not any relationship or overlap between cause categories, is suggested. Also fire statistics systems of foreign countries are introduced and compared.

• 한국화재소방학회:학술대회논문집
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• 한국화재소방학회 1996년도 학술발표회
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• pp.19-23
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• 1996

This paper, as a part of reviewing the adequacy of reflecting the fire protection systems in calculating fire insurance premium, deals with the relations between the probability of fire accidents and the capability of fire protection systems in buildings

• 한국화재소방학회논문지
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• 제30권4호
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• pp.73-81
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• 2016

정온전선은 평형 도체 사이에 반도전성 폴리머를 연속 압출 방식으로 충전시킨 후 양 도체 사이에 전기를 흐르게 함으로써 고분자에 의한 전열을 이용한 전기 발열체이다. 정온전선은 가격이 저렴하고 시공이 편리하기 때문에 겨울철 수배관의 동파방지용 열선으로 주로 사용되고 있다. 하지만 이러한 유용함에도 불구하고 구조적인 문제로 인하여 두 평형 도체의 절연이 파괴되는 경우에는 화재로 이어질 수도 있는 위험성이 존재하고 있다. 본 논문은 정온전선에 의한 화재현장을 조사하여 원인을 도출하는 방식으로 직접적인 원인을 추론하고자 하였으며, 결함수 분석을 통해 근본적인 문제를 파악해 보고자 하였다. 실제 냉동창고 화재현장을 조사하여 정온전선에 의한 화재원인을 추론한 결과 전선 말단 절연처리 결함에 의한 절연파괴인 것으로 판단되었다. 향후 이 결과는 안전활동 및 유사 화재원인조사 시에도 활용될 수 있을 것이다

• 한국안전학회지
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• 제35권2호
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• pp.1-7
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• 2020

In this paper, we describe fire risk of Kimchi refrigerator. The Kimchi refrigerator has been widely spread and used starting from the first half of 2000 and recently fire accidents caused by the Kimchi refrigerator emerged as social concern. In particular, in products of a specific manufacturer, it is not an environmental factor, but a characteristic that the fire is caused due to a defect of the product itself is shown. These features are judged to be formed by unique defects regardless of external factor by forming electrically arc mark in the relay element. In this paper, we analyzed the cause of the fire occurring in the Kimchi refrigerator and finally confirmed the characteristic that the fire occurred mainly in the relay element due to insufficient capacity of the relay element. Therefore, when a fire occurs in a product of the same maker as the Kimchi refrigerator mentioned in this paper, it is always judged that the inspection of the relay element should be carried out.

• 한국컴퓨터그래픽스학회논문지
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• 제28권4호
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• pp.23-30
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• 2022

본 논문에서는 불이 비슷한 색의 연기로 둘러싸여 있더라도 정확하게 검출할 수 있는 알고리즘을 제안한다. 기존 불 영역 검출 알고리즘들은 화재 이미지에서 불과 연기를 잘 분리해내지 못하는 문제점이 있었다. 본 논문에서는 불 영역 검출 알고리즘을 적용하기 전에 전처리 과정으로써 색상 보정 기법과 안개 제거 기법을 적용함으로써 성공적으로 불을 연기로부터 분리해냈다. 실제로 연기로 뒤덮인 화재 현장의 이미지들에서 기존 기법들보다 불을 더 효과적으로 검출하는 것을 확인할 수 있었다. 또한 제안한 화재 검출 알고리즘을 공장, 가정 등에서 효율적인 화재 탐지를 위해 사용할 수 있는 방법을 제안한다.

• 한국화재소방학회논문지
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• 제2권2호
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• pp.17-30
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• 1988

In Our Country, the fire safety design is done by the standard furnace fire test. This is haphazard procedure, as the standard furnace fire endurance of structural elements has little relation to the structural element endurance in an actual Compartment fire. The standard furnace fire test results, though obtained at great cost, do not contribute to the understanding of the behavior of structural elements in an elevated temperature environment and can not be applied rationally in fire safety design. The response of a steel and reinforced concrete structure in fire is a very complex problem. Therefore, in this paper is explained about tendency of study for fire safety design in advanced nations.

• 국제초고층학회논문집
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• 제7권4호
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• pp.287-298
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• 2018

High strength steels have been widely applied in recent years due to high strength and good working performance. When subjected to fire conditions, the strength and elastic modulus of high strength steels deteriorate significantly and hence the load bearing capacity of structures reduces at elevated temperatures. The reduction factors of mechanical properties of high strength steels are quite different from mild steels. Therefore, the fire design methods deduced from mild steel structures are not applicable to high strength steel structures. In recent ten years, the first author of this paper has carried out a lot of fundamental research on fire behavior of high strength steels and structures. Summary of these research is presented in this paper, including mechanical properties of high strength steels at elevated temperature and after fire exposure, creep response of high strength steels at elevated temperature, residual stresses of welded high strength steel member after fire exposure, fire resistance of high strength steel columns, fire resistance of high strength steel beams, local buckling of high strength steel members, and residual strength of high strength steel columns after fire exposure. The results show that the mechanical properties of high strength steel in fire condition and the corresponding fire resistance of high strength steel structures are different from those of mild steel and structures, and the fire design methods recommended in current design codes are not applicable to high strength steel structures.

• 대한안전경영과학회지
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• 제22권2호
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• pp.39-46
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• 2020

This paper recognizes the risk of ignition of air fryer (machine that can cook fried dishes with hot air without oil) that is far exceeding the sales rate of microwave ovens, which is necessary to modern household kitchen, and identifies fire risk through the operation principle of the process of heat transfer, and the main structure of the machine. The fire test that we conducted is to observe the risk of ignition of the machine due to the damage to the safety system and the possibility of igniting oil paper along with food, to experiment with the possibility of ignition due to blockage of the exhaust due to obstacles, and accumulation of oil stains on the hot wire, and to present the method of fire control and devise countermeasures.

• 한국컴퓨터정보학회논문지
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• 제24권8호
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• pp.131-136
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• 2019

A wireless sensor network (WSN) consists of several sensor nodes and usually one base station. In this paper, we propose a method to monitor topics using a wireless sensor network. Fire threatens people, animals, and plants, and it takes a lot of recovery time when a fire occurs. For this reason, it is necessary to use a fire monitoring system that is easy to configure and fast to avoid fire. In this paper, we propose a fast and easily reliable fire detection system using WSN. The wireless node of the WSN measures the temperature and brightness around the node. The measured information is transferred to the workstation and to the base station. The workstation analyzes current and historical data records to monitor the fire and notify the manager.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2005년도 지반공학 공동 학술발표회
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• pp.314-319
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• 2005

Nowadays, there so many fire accidents happened in subways and tunnels, buildings. In this paper, the behaviors of subway damaged by fire, the fire protection techniques for evaluating subway structures stability are presented. To protect the tunnel by fire, flame detector method is resonable.