浅谈民用建筑重复接地的重要性

On the importance of the repetitive ground in the civil building

论述了民用建筑中低压配电系统接地形式的定义和概念,阐述了TN-C-S系统的接地原理和特点;通过对TN-C-S系统中零线断开后相位漂移的详细分析,说明重复接地的重要性;对等电位箱、总配电箱内的N线和PE线及PEN线的连接方法也作了说明。

The paper discusses the definition and the concept of the grounded model of the low voltage distribution system in the civil building, describes the principle and characteristics of the TN-C-S systems, explains the importance of the repetitive ground by analyzes the phase drift after the disconnection of the zero line in TN-C-S systems, describes the connection method of the N line, PE line and PEN line in the equipotential box and the total distribution box.