摘要
GB 51348—2019《民用建筑电气设计标准》要求:重要消防设备应在配电线路最末一级配电箱处设置自动切换装置。对如消防水泵这类设置了设备备用的消防系统设计了两种末端配电方案。对两种配电方案分别搭建概率数学模型,对其供电的整体可靠性进行分析比较。比较结果表明,对于已设置末端设备备份的消防设备(如消防水泵),当电源可靠性很高时,设置末端切换设备的做法对于消防设备的可靠运行并没有益处,反而可能有害。
According to the requirements of standard GB 51348—2019,the important fire-fighting equipment should be equipped with automatic switching devices at the distribution box of the last level of distribution lines.Two terminal power distribution schemes are designed for fire control systems with equipment backup,such as fire control pumps.The probabilistic mathematical models of two power distribution schemes are built respectively,and the overall reliability of the power supply is analyzed and compared.From the comparison results,for firefighting equipment(such as firefighting pumps)with backup of the set end equipment,when the power supply reliability is very high,the practice of setting the end switching equipment is not beneficial to the reliable operation of firefighting equipment,but may be harmful.
作者
唐庆
TANG Qing(Chongqing JZFZ Architectural Design Co.,Ltd.,Chongqing 401120,China)
出处
《现代建筑电气》
2021年第11期9-13,共5页
Modern Architecture Electric
关键词
消防水泵
末端切换
数学模型
消防系统
可靠性
fire pump
end switch
mathematical model
fire protection system
reliability
作者简介
唐庆(1973—),男,高级工程师,从事建筑电气及建筑智能化工作。
