摘要
近年来铁路先后发生多起信号电缆大面积烧损的事件,究其原因,主要是由于外部磁场的影响较大、电缆的接地方法不合理。对由外部磁场干扰而产生感应电流、电压的原理进行分析,并探讨电缆接地的方法,提出电缆接地的优化方案和防电缆烧损的措施,为工程实施和维护管理提出可行性建议。
Tens of signal cable burning events happened in recent years due to great influence of external magnetic field and unreasonable earthing methods of cables.This paper mainly analyzes the principles of generating induced current and voltage caused by interruption of external magnetic field,discusses the way of cable earthing,and puts forward the optimizing scheme and the measures of preventing cable burning as a feasible recommendation for project implementation and maintenance management.
出处
《铁路通信信号工程技术》
2011年第4期67-69,共3页
Railway Signalling & Communication Engineering
关键词
信号电缆
防范
烧损
单端接地
双端接地
signal cable
precaution
burning out
single end earthing
double ends earthing
