摘要
通过介绍ＰＴＣ热敏电阻的特点和性能分析，找出ＰＴＣ热敏电阻的电阻－时间开关特性，阐明其在通信线路防雷、防强电过流保护中的作用及应用。
Though introducing the characteristics and performance of PTC resistance,the author finds out its R T switching feature and clarify the action & application in field of lighting protection of communication line and powerful overcurrent protection.
出处
《电力系统通信》
1999年第4期43-45,47,共4页
Telecommunications for Electric Power System
