摘要
通过分析比对不同电线电缆阻燃耐火性能分类及试验标准,提出设计标准中阻燃类别选择存在的问题及建议。建筑物发生火灾的严重程度与建筑规模功能用途密切相关,不同建筑物的消防用电设备所需连续供电的时间也不同,消防设备配电及控制线路应满足建筑火灾延续时间内能连续供电的要求,电线电缆耐火性能的选择应与之相适应。
The classification and test standards for fire resistance of different wires and cables are analyzed and compared,and existing problems about and suggestions for the selection of fire resistance category in design standards are proposed.The severity of fire in buildings is closely related with the scale,function and purpose of buildings.The continuous power supply time of firefighting electrical equipment varies with buildings,the distribution and control lines of firefighting equipment shall meet the requirements for continuous power supply for buildings within the duration of fire,and the selection of fire resistance of wires and cables shall match the firefighting equipment.
作者
薛晓
王国光
崔欢欢
XUE Xiao;WANG Guoguang;CUI Huanhuan(China Northwest Architectural Design and Research Institute Co.,Ltd.,Xi'an 710018,China)
出处
《建筑电气》
2024年第7期45-49,共5页
Building Electricity
关键词
电线电缆
燃烧性能
阻燃类别
电缆桥架
耐火性能
消防用电设备
供火时间
性能检测
wires and cables
burning behavior
fire resistance e category
cable tray
fire resistance
firefighting electrical equipment
firesupply time
performance test
