• Proceedings of the Korea Institute of Fire Science and Engineering Conference
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• 2008.11a
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• pp.450-455
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• 2008

We have carried out the test using the cone calorimeter and the smoke density chamber to evaluate the characteristics of the combustion for the car interior materials passed horizontal burning test. We have analysed many parameters related to fire hazard. These parameters are the ignition time, the heat release rate, the maximum average rate of heat emission, the flashover propensity and specific optical density. There was a significant difference in HRR and optical smoke density. The HRR was $185{\sim}446kW/m^2$ and optical smoke density was $119{\sim}1207$. Only horizontal burning test was performed to evaluate the fire hazard for the car interior materials.

• Journal of the Semiconductor & Display Technology
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• v.18 no.3
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• pp.47-51
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• 2019

The three different polymer compounds were manufactured with the three different fire retardant (silane coated magnesium dihydroxide) contents, 180, 200, 220 phr, for making cable sheath for ship industry. In the research, ethylene-vinylacetate, polyethylene as matrix polymers and ethylene-vinylacetate grafted maleic anhydride as coupling agent were selected for compounding with fire retardant, closslinking agent, plasticizer, and other additives. In the evaluation. ΔT, Mooney viscosity, and tensile strength increased with the content of fire retardant. But it was found that too much fire retardant damaged aging resistance and cold resistance of the polymer compound.

• Proceedings of the KIPE Conference
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• 2015.07a
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• pp.15-16
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• 2015

According to 2014 fire statistical yearbook in the National Fire Data System, a main cause of fire is electrical fire except carelessness fire. Joint/contact badness is the one of the main cause of electrical fire. Furthermore, power relays which are used in electric panel board, motor control center and automation controller, are main element of automation system in the industry field. Overload, voltage unbalance and open-phase due to joint/contact badness of terminal make electric accidents or electrical fires. In order to prevent joint/contact badness of terminal, this paper proposes a sensing circuit of chattering, tracking, arc current, voltage unbalance and open-phase etc. Some experimental tests of the proposed apparatus confirm practicality and validity of the theoretical results.

• Proceedings of the Korea Institute of Fire Science and Engineering Conference
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• 1997.11a
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• pp.610-616
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• 1997

One of the notable changes in Korean Industry in 1990's was globalization. Many of Korea plants have been built In the foreign countries and many of foreign plants have been build in Korea. And it is believed that many foreign insurance companies will begin their business in Korea soon, as Korea will open their insurance market to them. While sprinkler system plays very important role in total fire protection system, Korean sprinkler system design has not been studied in depth. Thus, it is not easy to convince the performance of Korean sprinkler system and compare it to NFPA 13, Standard for the Installation of Sprinkler System. Design guideline from both system will be listed and compared in detail. Fire water demand from both system will be reviewed to evaluate its adequacy. Water spray density and actuation time will be estimated, too.

• Elastomers and Composites
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• v.54 no.2
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• pp.118-122
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• 2019

Four different polymer compounds were manufactured to make cable sheaths for the shipping industry. Two kinds of ethylene vinyl acetate (EVA) as the main matrix polymers and EVA-grafted maleic anhydride (EVA-g-MAH) as the coupling agent were selected for compounding with fire retardant, crosslinking agent, filler, plasticizer, and other additives. The properties of the four compounded materials were investigated with different contents of the fire retardant, silanecoated magnesium dihydroxide (S-MDH). In the rheology evaluation, the $t_{60}$ and ${\Delta}T$ values increased with increasing S-MDH contents. On the other hand, the tensile strength decreased with increasing S-MDH content due to a relative decrease in binder polymers. With increasing S-MDH content, fire resistance increased, but cold resistance showed no obvious enhancement due to the polar effect of vinyl acetate in EVA.

• Fire Protection Technology
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• s.18
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• pp.28-35
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• 1995

To survive in the 21C every nations in the World squeeze their intelligence. To our country, having a marvelous growth career in viewpoint of the economy, making efforts to renovate. Behind the breath of the economy a lot of law, regulations, standards of industry, and specifications are exists and the in-dustry controlled by these. Regretably in spite of surprising growth of our economy in a short period still keeps them old rules as they have been applies on our industry without change. In the part of the rife resistance standards, espacially for the fire door, needs grad-up much for the recently version compared with the other countries's. The rapid reshape of the world urges us be revolutionized in the part of the software, ie. these unchanged rules.

• Journal of Korea Society of Digital Industry and Information Management
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• v.8 no.4
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• pp.63-71
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• 2012

Recently, because most of buildings in the city become bigger and higher, so various convenient facilities and high-tech management skills are required to prevent potential disasters. Especially, because fires in huge buildings can cause serious damage, technologies and methods that help people quickly and safely to escape from the building is very important to extinguish the fire in initial state and to minimize the damage. This paper suggests a context-aware service system that can provide optimal escape routes to tenants with their smart-phones. The proposed system collects contexts with real time through USN(Ubiquitous Sensor Network) and provides an optimum escape route based on the collected contexts through service users' smart phones. In addition, The system provides not only safe routes from the fire but also valuable information for rescue operations with real time.

• Proceedings of the Korea Institute of Fire Science and Engineering Conference
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• 2010.04a
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• pp.530-535
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• 2010

본 연구에서는 한라산 산림 연료의 산불발생에 대한 위험성을 고찰하고자 16종의 고도별 분포수종 생엽을 대상으로 발화온도시험기와 콘칼로리미터 시험기를 이용하여 착화특성을 분석하였다. 함수율을 측정한 결과, 98~248% 정도의 범위 내에서 수종별로 차이가 나타났으며, 무염착화온도는 $251{\sim}383^{\circ}C$ 온도구간에서 수종별로 차이가 나타났다. 선정된 시료들 가운데 조릿대의 함수율과 발화온도가 가장 낮은 것으로 나타났다. 특히, 조릿대, 털진달래, 개서어나무들은 발염착화가 일어나는 것이 확인되었으며, 조릿대는 다른 수종들에 비해서 가장 빠른 시간에 착화가 일어나는 것을 알 수 있었다.

• Journal of Korea Society of Digital Industry and Information Management
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• v.15 no.3
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• pp.175-195
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• 2019

This research aims to examine the cause-and-effect relationship between Organizational Justice and Organizational Commitment within ICT corporates for fire prevention, through Leader-Member Exchange(LMX) and Organizational Support. A survey was conducted to corporate employees from staff members to executives. A total of 316 responses were collected during two weeks from May 1st to 17th, 2019, and were analyzed in this research. The result of the theory on ICT fire prevention was as follows: First, Distributive Justice has significant influence on Organizational Support, while it does not on LMX. Second, Procedural Justice has significant influence on both Organizational Support and LMX. Third, while Interactional Justice does not have significant influence on Organizational Support, LMX showed significant influence. Fourth, Organizational Support has significant influence on Organizational Commitment. Fifth, LMX has significant influence on Organizational Commitment. This research is academically significant in that it applied the Justice Theory on ICT corporates for fire prevention from staff members to executives. It is considered so, since existing researches mainly address on the status of technologies and policies on how to link fire prevention and ICT, and not on fair compensation based on Organization Justice theory. Practical significance can be found in its suggestions to improving organizational culture from top-down to bottom-up, thus creating free and engaging atmosphere at work. It is therefore needed to conduct further researches that categorize executives by their traits, and examine factors influencing on organizational commitment within ICT corporates for fire prevention.

• Fire Protection Technology
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• s.11
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• pp.31-39
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• 1991

As the Present industry is developing, a structure and systems is tending increase. Therefore, the accident of freezing become intensified in our country, the continental climate zone of region in the middle degree. This paper is to analyze about the reason of freezing, principles to help avoid freeze, and so forth.