摘要
铁路信号是铁路运输安全的重要保障之一。铁路信号系统的雷电过电压保护,则是其免遭雷电过电压侵扰和损坏的有效措施。电涌保护器(SPD)的防护安全性和在线安全性,直接关系到铁路信号的正确与否。串混型SPD是铁路信号系统过电压防护的新用法。分析和了解串混型SPD的工作原理,对SPD的选型、使用和安装都有重要的指导意义。
Railroad signal is one of the important guarantees for railroad traffic safety. The lightning over-voltage protection of railroad signal system is a valid measure to avoid over-voltage interferences and incurring damages of lightning. Defend security and online security of Surge Protection Device （SPD） which related directly whether the railroad signal is correct. The series mixed SPD is a new method of using for the railroad signal system of over voltage protection. Through analyzing and understanding the working principle of series mixed SPD, it can help give instruction for the selection, usage and installation of SPD.
出处
《铁道通信信号》
2006年第8期18-20,共3页
Railway Signalling & Communication
关键词
串混型SPD
防护安全
在线安全
Seris Mixed SPD, Protection safety, Safety on line
