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中压耐火电缆耐火试验方法的探讨*

来源于: 发表时间:2019-03-22 12:03 编辑:fzy

   周晓勇    胡林明    超(应急管理部四川消防研究所,成都市 610036

Discussion on Fire Resistance Test Methods for Medium - voltage Fire Resistant Cables*

GAO Xu ZHOU Xiaoyong FENG Jun HU Linming WAN Chao

Sichuan Fire Research Institute of MEMChengdu 610036China

 

    AbstractThe requirements of the fire resistance test methods standard for low-voltage fire resistant cables are described briefly. Based on the analysis of the fire resistance test methods for the low-voltage fire resistant cablesthe common structure of medium-voltage fire resistant cables is introduced. Besidesthe fire resistance test devices and methods for medium-voltage fire resistant cables are discussed in the aspects of heat sourcetest power source and electrical connection of samples in order to evaluate the continuous working ability of medium-voltage cables under rated working and flame combustion conditions.

    Key wordsmedium-voltage fire resistant cablesfire resistance test methodscircuit integritytest temperaturecontinuous power-on durationheat sourcetest power sourceelectrical connection

 

    摘 要:简述低压耐火电缆产品标准耐火试验方法要求。在分析低压耐火电缆耐火试验方法的基础上,介绍中压耐火电缆的常见结构,并从热源、试验电源、试样的电气连接等方面,对中压耐火电缆耐火试验装置及方法进行探讨,以评价中压电缆在额定工作条件以及火焰燃烧条件下持续工作的能力。

   关键词:中压耐火电缆;耐火试验方法;线路完整性;试验温度;持续供电时间;热源;试验电源;电气连接

      中图分类号:TM247            文献标识码:A

     doi10. 3969 / j. issn. 1003 - 8493. 2019. 02. 006

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