Protection of Terminal Distribution Lines in Tall Buildings

Hu Zhongkui Zhao Nan（He’nan Giant Partners Architectural Planning Design Co.，

Ltd.，Zhengzhou 450003，China）

Abstract Through an example of the distribution for the smoke exhaust fans at the top-storey of a tall residential building，matters of single-phase short-circuit protection and sensitivity calibration and so on for long-distance distribution lines are discussed.

Key words Grounding fault Phase conductor and netural conductor short-circuit Sensitivity

 

摘 要 通过一高层住宅楼顶层的排烟风机配电实例，探讨了远距离配电线路的单相短路保护、灵敏度校验等问题。

关键词 接地故障 相线 - 中性线短路 灵敏度