建筑电气工程设计及施工中的接地问题思考

周   彬 丁   杰 郝鹏超（中国航空规划设计研究总院有限公司，北京市 100120）

Thoughts on Grounding Problems in the Design and Construction

of Building Electrical Engineering

ZHOU Bin DING Jie HAO Pengchao(China Aviation Planning and Design Institute(Group)

Co.,Ltd.,Beijing 100120，China)

Abstract：Based on the case of grounding engineering at the plant substation,the reason for fire alarm is analyzed and the resulting grounding problems are discussed. TN - C - S grounding type is recommended for the design of substation,and attention shall be paid to the proper use of color code for cable during the process of design,manufacturing,construction and O&M.

Key words：building electrical engineering;design and construction;grounding system;substation grounding;one‑point grounding;neutral conductor;protective conductor;conductor color code

摘　要：结合厂房变电所接地工程案例，分析出现火灾报警问题的原因，并对由此引发的接地问题进行探讨，建议变电所的设计采用TN - C - S系统，设计、制造、施工、运维等环节应重视电缆色标的正确使用。

关键词：建筑电气工程；设计及施工； 接地系统；变电所接地；一点接地；中性导体；保护导体；导体色标

中图分类号：TU852  　　  　       文献标识码：A

doi：10.3969 / j. issn.1003 － 8493.2022.02.005