城市综合管廊的电气工程设计探讨

Discussion on Electrical Engineering Design of Urban Utility Tunnel

近几年综合管廊建设项目数量逐年增加,作为一项新兴工程类型,提高电气设计的整体安全性显得尤为重要。重点对综合管廊的电气工程设计中遇到的供电电源负荷等级、现有管廊的供电电源配置形式、配电结构及变电所节点设计的优化、电缆电线的选取、防火分区配电、综合管廊风机的配电及控制、管廊的接地等重点、难点进行了探讨,并结合实际工程建设、管理的经验给出了一些解决方法和建议,可供相关工程参考借鉴。

In recent years, the construction projects of utility tunnel have been increasing year by year. As a new type of engineering, it is more important to improve the overall safety of electrical design. This paper discusses the key points and difficulties met in the electrical engineering design of the utility tunnel from aspects of load level of power supply, configuration form of power supply, node design optimization of power distribution structure and substation, selection of electric cable wire, power distribution of fire compartment,power distribution and control of fan for utility tunnel, and earthing of utility tunnel. Some solving methods and proposals are given according to the practical engineering construction and management experience, which can be referred for the similar projects.