矿物绝缘电缆分支接线选择建议  

Suggestions of Using Mineral Insulated Pre-Branched Cables

作　　者：胡艳强 HU Yanqiang(Beijing Zhongsha Architectural Design&Research Institute Co.,Ltd.,Beijing 100042,China)

机构地区：[1]北京中厦建筑设计研究院有限公司,北京100042

出　　处：《现代建筑电气》2022年第12期42-47,共6页Modern Architecture Electric

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.

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 

分 类 号：TM247[一般工业技术—材料科学与工程]