摘要
地下车站机电设备繁多,火灾报警系统(FAS)与外部设备的接口设计中控制信号采用被控设备方提供的AC 220 V强电工作电压,会导致FAS设备感应电压过高,进而出现接地故障报警的情况。针对此类问题,针对地铁工程实施中,因电磁干扰导致地下车站FAS大面积接地故障报警的情况原因进行分析,提出了对控制接口和反馈接口进行改进的优化方案。
Mechanical and electrical equipment are abundant in the underground station.The control signal in the design of interface between fire alarm system(FAS)and external equipment adopts the AC 220 V heavy current working voltage provided by the controlled equipment party;it will lead to the situation that the induced voltage of FAS equipment is too high,resulting in grounding fault alarm.In view of such problems,this paper analyzes the causes of large area grounding fault alarm of underground station FAS caused by electromagnetic interference in the construction of subway project,and puts forward the optimization scheme of improving the control interface and feedback interface.
作者
罗亮
徐秋珍
LUO Liang;XU Qiuzhen(Compound Team of Nanchang Fire and Rescue Brigade,Nanchang,Jiangxi 330038,China;Water Team of Nanchang Fire and Rescue Brigade,Nanchang,Jiangxi 330038,China)
出处
《有色冶金设计与研究》
2020年第4期46-48,共3页
Nonferrous Metals Engineering & Research
关键词
城市轨道交通
火灾自动报警系统
接口设计
接地故障报警
强电感应
urban rail transit
automatic fire alarm system
interface design
grounding fault alarm
heavy current induction
作者简介
罗亮(1984-),男,技术十级工程师,主要从事消防监督执法工作。
