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        트레이용 난연 전력 케이블의 화재특성에 관한 실험적 연구

        김성찬 ( Sung Chan Kim ),김정요 ( Jung Yong Kim ),방경식 ( Kyong Sik Bang ) 한국안전학회(구 한국산업안전학회) 2013 한국안전학회지 Vol.28 No.3

        The present study has been conducted to investigate the fire combustion properties and fire behavior of an IEEE-383 qualified flame retardant cable. The reference reaction rate and reference temperature which are commonly used in pyrolysis model of fire propagation process was obtained by the thermo-gravimetric analysis of the cable component materials. The mass fraction of FR-PVC sheath abruptly decreased near temperature range of 250~260℃ and its maximum reaction rate was about 2.58×10-3 [1/s]. For the XLPE insulation of the cable, the temperature causing maximum mass fraction change was ranged about 380~390℃ and it has reached to the maximum reaction rate of 5.10×10-3 [1/s]. The flame retardant cable was burned by a pilot flame meker buner and the burning behavior of the cable was observed during the fire test. Heat release rate of the flame retardant cable was measured by a laboratory scale oxygen consumption calorimeter and the mass loss rate of the cable was calculated by the measured cable mass during the test. The representative value of the effective heat of combustion was evaluated by the total released energy integrated by the measured heat release rate and burned mass. This study can contribute to study the electric cable fire and provide the pyrolysis properties for the computational modeling.

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