摘要
从现行规范对消防灭火设备的火灾持续工作时间谈起,依据现行规范,给出消防配电线路火灾持续工作时间的建议。从矿物绝缘电缆的结构角度分析国标和企标对应的电缆型号,从火灾持续供电时间需求角度给出矿物绝缘电缆的火焰持续温度及耐火时间建议。综合分析耐火性能、施工效率、成本及安全,指出矿物电缆分支箱使用弊端,结合现有市场情况提出矿物绝缘预分支电缆的使用建议。
Based on the fire duration of fire fighting equipment in current standards, it gived suggestions on the fire duration of fire fighting distribution circuits through the statistics of the current standards, and analysed the cable models corresponding to national standards and enterprise standards from the structure of mineral insulated cables, and also gived suggestions on the flame duration temperature and fire resistance time of mineral insulated cables from the demand of fire duration power supply time.Construction efficiency, cost and safety of the mineral cable branch boxes often used in the past cases were analysed, it represented the disadvantages of using mineral cable branch boxes and gived suggestions of using mineral insulated pre branched cables that combined with the existing market situation.
作者
胡艳强
HU Yanqiang(Beijing Zhongsha Architectural Design&Research Institute Co.,Ltd.,Beijing 100042,China)
出处
《现代建筑电气》
2022年第12期42-47,共6页
Modern Architecture Electric
关键词
矿物绝缘电缆
火焰持续温度
火灾持续时间
矿物预分支电缆
电缆分支箱
mineral insulated cable
flame duration temperature
fire duration
mineral insulated pre branched cable
cable branch box
