民用建筑多电源TN系统“一点接地”应用探讨

摘要

根据GB/T 50065-2011《交流电气装置的接地设计规范》，分析民用建筑多电源TN系统的接地形式，探讨减少由供电系统产生的电磁干扰的接线方案，给出“一点接地”的多种做法，供分析探讨。%Based on GB/T 50065- 2011 Code for Design of AC Electrical Installations Earthing , the earthing forms of multi-power TN system in civil building are analyzed; wiring scheme is discussed for reducing the electromagnetic interference caused by power supply system; several practice of “one-point earthing” are proposed for analysis and discussion.