摘要
本文介绍了380V及380V以下的低压系统(以下简称低压系统)接地的必要性,简单介绍了低压系统接地的概念、分类、方法和型式,分析了TN-S系统的重复接地问题,并分析了低压系统接地故障引发火灾的原因。
The article introduces the necessity of the grounding of 380v and under 380v low-voltage system (called low-voltage system for short hereinafter), as well as the concept, classification, methods and modes of low-voltage grounding, analyzes repeated grounding problems of TN-S system, and the reasons why the grounding failure of the low-voltage system leads to fire are also analyzed, and the precautions against the fire are introduced.
