Lightning Protection and Grounding Engineering Construction for the T3A Main Building

of Capital International Airport

Tang Xinting（Beijing Urban Construction Group Co.，Ltd.，Engineering General Contracting

Department，Beijing 100088，China）

 

Abstract T3A main building in Capital International Airport Terminal Building 3 is introduced, which makes use the building structures to construct the lightning protection and grounding system，utilizes the space in the steel pipe columns to build laying passages for pipelines，and uses binnacles with water - proof and shielding function to make equipotential bonding.

Key words Super large area metal roofing Down lead for lightning protection Steel pipe column SPD protection in grades Equipotential bonding Binnacle grounding Grounding resistance testing in super large building

 

摘 要 介绍了首都国际机场3号航站楼T3A主楼，利用建筑结构构建防雷、接地体系，利用钢管柱柱内空间构建设备管路敷设通道，以及具有防水、屏蔽功能的罗盘箱的等电位联结。

关键词 超大面积金属屋面 防雷引下线 钢管柱 SPD分级保护 等电位联结 罗盘箱接地 超大型建筑接地电阻测试