| 热老化对阻燃PVC电缆燃烧性能的影响 |
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| 引用本文： | 舒中俊,贾文娜,陈南.热老化对阻燃PVC电缆燃烧性能的影响[J].消防科学与技术,2010,29(2). |
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| 作者姓名： | 舒中俊 贾文娜 陈南 |
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| 作者单位： | 1. 中国人民武装警察部队学院,河北,廊坊,065000
2. 廊坊市消防支队,河北,廊坊,065000 |
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| 摘 要： | 采用锥形量热计对不同热老化程度的阻燃PVC电缆的引燃特性和热释放规律进行试验研究。结果表明,电缆试样的引燃时间随热老化程度的增加而延长,老化前期引燃时间增大较快,后期减缓;热释放速率的初始峰值随热老化程度的增加呈下降趋势;火灾性能指数随老化时间的延长总体呈下降的趋势。故与新投入使用的电缆相比,老化电缆的引燃危险和热危险相对减小。
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| 关 键 词： | 阻燃PVC电缆 热老化 引燃时间 热释放速率 |
The effect of thermal ageing on fire performance of flame retardant PVC cable |
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| SHU Zhong-jun,JIA Wen-na,CHEN Nan.The effect of thermal ageing on fire performance of flame retardant PVC cable[J].Fire Science and Technology,2010,29(2). |
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| Authors: | SHU Zhong-jun JIA Wen-na CHEN Nan |
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| Affiliation: | SHU Zhong-jun1,JIA Wen-na2,CHEN Nan1 (1.Chinese People\'s Armed Police Forces Academy,Hebei Langfang 065000,China,2. Langfang Fire Detachment,Heibei Langfang 065000,China) |
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| Abstract: | The impact of different degree of thermal aging on the ignition character and heat release rule of flame retardant PVC cable is researched by means of cone calorimeter. Results indicate that ignition time basically increases with aging time, and it increases fast at the earlier stage of thermal aging, and slower later. The peak of heat release rate decreases with aging time. The fire performance index (FPI) of the cables decreases with aging time. So compared to the cables newly put into operation, the agin... |
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| Keywords: | flame retardant PVC cable thermal aging ignition time heat release rate |
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