市政工程电气设计若干问题的探讨  

Discussion for Some Problems of the Electrical Design of Municipal Engineering

作　　者：张大为 戴春琴 Zhang Dawei;Dai Chunqin(Tianjin Municipal Engineering Design&Research Institute Co.,Ltd,Tianjin 300392,China;Tianjin Technician Institute of Mechanical&Electrical Technology,Tianjin 300350,China)

机构地区：[1]天津市政工程设计研究总院有限公司,天津300392 [2]天津市机电工艺技师学院,天津300350

出　　处：《智能建筑电气技术》2023年第3期12-15,共4页Electrical Technology of Intelligent Buildings

摘　　要：本文针对市政工程电气设计中容易忽略的问题,探讨了10kV避雷器与供电系统运行方式的匹配问题、低压配电系统PEN线接地问题、电气火灾监控系统剩余电流监测装置安装位置问题和电弧故障保护弥补电伴热配电保护盲区的问题,对问题的现状、危害进行了分析,提出了解决问题的方案。Aiming at the problems that are easily overlooked in the electrical design of municipal engineering,this article discusses the matching problem of 10kV arrester and the operation mode of the power supply system,the grounding problem of the PEN of the low-voltage power distribution system,the installation position of the residual current monitoring device of the electrical fire monitoring system and the problem of utilizing arc fault protection to reduce the blind area of electric heat tracing protection.The author analyzes the current situation and hazards of mentioned problems and proposes solutions.

关 键 词：市政工程 电气设计 避雷器 PEN线 剩余电流监测 电弧故障保护 

分 类 号：TU852[建筑科学]