小区低压配电系统接地保护装置施工技术

Construction Techniques for Grounding Devices Concerning Low-Voltage Distribution System in Residencial Areas

本文通过对低压配电系统的TN、TT、IT三种接地型式的简单介绍,重点叙述了小区建筑低压配电系统的接地保护措施,小区建筑采用TN—C和TN—S混合型式即TN—C—S系统,在达到使用要求的同时节约和降低了成本,符合公众的消费利益。

The paper, by adopting a brief introduction of the three different grounding method of low-voltage distribution system： TN, TT, and IT, describes some protective measures for grounding devices of low-voltage distribution system in residential areas. A combination of methods of TN-C and TN-S, i.e. TN-C-S, for cost-reducing are applied to meet the operation requirements for the good of the public consumption interests.