Discussion about Overload Protection of the Important Load Distribution Lines and Equipments

Chen Meng（Xiamen Hordor Construction Drawing Examination Co.，Ltd.，Xiamen 361004，Fujian Province，China）

 

Abstract Aimed at the overload protection problems of low-voltage distribution lines and equipments in the design, combined with relevant codes，provisions, several measures which can make the overload protection acting on the signal instead of shutting off the lines are presented. And the overload protection characteristics of motor and lines are analyzed and compared.

Key words Important load Overload protection   Acting on the signal

 

摘 要 针对设计中低压配电线路及设备过载保护的问题，结合相关规范条文进行了分析，给出了实现线路过载保护作用于信号而不作用于切断电路的几种措施，并分析、比较了电动机和线路过载保护的特点。

关键词 重要负荷 过载保护 作用于信号