摘要
本文分析了TT系统的主要优势,阐述了TT系统中安装剩余电流保护器的必要性,并且通过分析计算给出了在安装剩余电流保护器的情况下,TT系统中设备保护接地的接地电阻应取值的范围以及接地电阻的具体设计方案。
This paper analyzes the main advantages of TT system, and expounds the necessity of installing the residual current protection device in TT system. Then gives the range of grounding resistance of the equipnlent in the TT system installed residual eurrent protection devices and the concrete design of grounding resistanee.
出处
《智能建筑电气技术》
2014年第2期8-10,共3页
Electrical Technology of Intelligent Buildings
关键词
TT
系统接地电阻
RCD相线碰壳
TF system, grounding resistance, RCD, phase touches the shellof equipments
