摘要
分析了地铁配电线路泄漏电流引起电气火灾的原因。论述了泄漏电流火灾报警系统在地铁应用的必要性。分析了泄漏电流报警系统的工作原理,介绍了泄漏电流报警系统的硬件组成及软件实现流程。描述了判断具体漏电位置的方法。泄漏电流监测火灾报警系统作为火灾提前预警系统,可以提早发现火灾隐患,提早消除隐患,有效地避免或减少火灾的发生。
The reasons of metro fires caused by power supply circuit are analyzed,the application necessity of fire alarm system based on leakage current monitoring in rail transit is described.Meanwhile,the working principles of this system,the hardware structure and software process of the leakage current monitoring system are analyzed,problems like how to prevent electric fires,how to detect and eliminate the fire hazard in early stages in rail transi are discussed,in order to avoid and reduce the electric fires effectively.
出处
《城市轨道交通研究》
北大核心
2014年第4期122-124,132,共4页
Urban Mass Transit
关键词
地铁
供电线路
泄漏电流监测
电气火灾报警
metro
power supply circuit
leakage current monitoring
electric fires warning
