Discussion on Design of Grounding System for Super High- rise Buildings

CHEN Jiefu（Institute of Shanghai Architectural Design Research Co.，Ltd.，Arcplus Group PLC，Shanghai 200041，China）

 

    Abstract：Firstly，the characteristics of grounding system for super high-rise buildings are analyzed；secondly，the selection of materials and sectional areas of grounding protection wire and grounding main line is analyzed according to multiple code specifications；thirdly，the design method of grounding protection wire is discussed on the basis of design cases of super high-rise buildings；finally，the advantages and disadvantages of two design schemes of grounding main line are contrasted.

    Key words：super high-rise buildings；grounding system；protection wire；TN - S system；section selection；4 - core cable；bus + grounding main line；scheme comparison

 

    摘 要：首先分析超高层建筑接地系统的特点；其次从多个规范要求角度分析接地保护线的材质及截面积选择，并分析设置接地保护干线的材质及截面积选择；再次，在超高层设计案例的基础上讨论接地保护线的设计方法；最后对比两种接地干线设计方案的优劣。

    关键词：超高层建筑；接地系统；保护线；TN - S系统；截面选择；4芯电缆；母线 + 接地干线；方案对比

     中图分类号：TU852                文献标识码：A

     doi：10. 3969 / j. issn. 1003 - 8493. 2019. 05. 003