配电系统采用共用接地的优点及应注意的问题

Advantages and issues of sharing grounding in distributing electricity system

随着低压供配电系统中的负荷设备种类的多样化和数量的日益增长,各种电气设备的接地是分开独立接地,还是共用接地,已成为广大设计工作者十分关心的问题。实践表明,采用共用接地有不少优点,但也存在一些问题,需要正确加以分析和对待。

With the increasing of the diversification and quantity of load equipments in low-voltage electric power supply distribution system, it becomes a question as whether an electric equipment should be independent grounding or shared grounding. It has been verified through practice that there are many advantages in employment of shared grounding. However, there exist some problems, which should be analysed and treated properly.