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Fire Sci. Eng. > Volume 33(3); 2019 > Article
Fire Science and Engineering 2019;33(3):29-36.
DOI:    Published online June 30, 2019.
케이블의 난연성능에 따른 복사 열유속이 연소물성에 미치는 영향
문선여1, 황철홍2
1대전대학교 대학원 방재학과 대학원생
2대전대학교 소방방재학과 교수
Influence of Radiant Heat Flux on Combustion Properties of Flame Retardant Cable
Sun-Yeo Mun1, Cheol-Hong Hwang2
1Graduate Student, Dept. of Disaster Prevention, Daejeon University
2Professor, Dept. of Fire & Disaster Prevention, Daejeon University
Correspondence:  Cheol-Hong Hwang, Tel: +82-42-280-2592, Fax: +82-42-280-2596, 
Received: 25 March 2019   • Revised: 19 May 2019   • Accepted: 20 May 2019
다층·다성분 난연성 케이블의 화재시뮬레이션에서 요구되는 연소물성이 콘 칼로리미터를 통해 측정되었다. 난연성 케이블의 주요 재질에 따른 CO 및 Soot yields 그리고 연소열이 검토되었다. 케이블의 난연성능이 우수한 TFR-8(고난연성 PCV 및 XLPE 첨가), TFR-CVV-SB(고난연성 PCV 및 일반 PVC로 구성) 및 VCTF가 각각 대상으로 고려되었다. 주요 결과로서, 난연성케이블인 TFR-8과 TFR-CVV-SB는 입사 복사열유속이 25 kW/m2에서 50 kW/m2으로 증가됨에 따라 CO yield(yco) 는 각각 23% 와 16% 증가한다. 반면에 VCTF의 CO yield는 복사 열유속의 변화에 큰 영향을 받지 않는다. 마지막으로 Soot yield 및 연소열은 시스의 재질(난연성능)이 강화될수록 복사 열유속에 의한 차이가 증가됨이 확인되었다. 따라서 다양한 열유속이 공존하는 화재환경에서 난연성 케이블의 연소물성의 적용에는 상당한 주의가 요구된다.
The combustion properties required for fire simulations of multi-layer, multi-component flame retardant cables were measured using a cone calorimeter. The CO and soot yields combustion efficiencies of the flame retardant cables were investigated. TFR-8 (flame retardant PCV and XLPE added), TFR-CVV-SB (flame retardant PCV and general PVC), and VCTF, which are excellent in the flame retardancy of cables, were considered. As the main result, the CO yield (yco) of the TFR-8 and TFR-CVV-SB flame retardant cables increased by 23% and 16%, respectively, with increasing incident radiation heat flux from 25 kW/m2 to 50 kW/m2. On the other hand, the CO yield of VCTF was not influenced significantly by the changes in radiant heat flux. Finally, the soot yield and combustion efficiency increased as the sheath material (flame retardant performance) was strengthened. Therefore, in a fire environment where various heat fluxes coexist, attention should be paid to the top of the application of the combustion property of the flame retardant cable.
Key Words: Cone calorimeter (ISO-5660-1), Flame retardant cable, Heat flux, Combustion properties

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