城市隧道供配电设计探讨

Discussion on Power Supply and Distribution Design of Urban Tunnel

基于城市隧道工程设计经验,对城市隧道工程的供配电设计要点进行梳理,介绍了城市隧道用电负荷的特点和等级,归纳与总结了隧道负荷计算方法、隧道供配电系统的电源保障、变配电所设置、供配电方式、主要电气设备选型、电能计量及无功补偿、线缆选择与敷设、电力监控系统、防雷及接地等技术要点。

Based on the design experience of urban tunnel engineering,this paper puts the key points of power supply and distribution design of urban tunnel engineering in order,introduces the characteristics and class of power load of urban tunnel,discusses the calculation method of tunnel load,and summarizes and concludes main contents and technical key points of tunnel power supply and distribution system,including power supply guarantee,setting of substation,mode of power supply and distribution,selection of main electrical equipment,electric energy measuring and reactive power compensation,cable selection and laying,power monitoring system,lightning protection and grounding and so on.