浅谈轨道交通供电系统环网电缆孔洞封堵技术改造  

Discussion on the Hole Plugging Technology Reformation of Ring Network Cable in Rail Transit Power Supply System

作　　者：马静 MA Jing(Lanzhou Rail Transit Co.,Ltd.Operation Branch,Lanzhou 730000,China)

机构地区：[1]兰州市轨道交通有限公司运营分公司,兰州730000

出　　处：《价值工程》2023年第8期55-57,共3页Value Engineering

摘　　要：城市轨道交通供电系统中压环网是保障供电系统正常输电的重要条件,通过全线轨行区敷设电缆将全线各个变电所连接起来,在轨行区电缆夹层开设孔洞使电缆完成变电所进出户,从而形成一个完整的中压供电网络。在运营线路中,环网电缆进出户孔洞的防火封堵质量直接影响轨行区行车安全,根据兰州市轨道交通1号线运营实际经验,分析总结并制定实施一项满足防火规范要求的同时满足牢靠固定要求的技术改造项目,确保运营行车安全。The medium voltage ring network of urban rail transit power supply system is an important condition to ensure the normal transmission of power supply system.All substations of the whole line are connected by laying cables in the rail running area,and holes are opened in the cable interlayer of the rail running area to complete the cable access to households,forming a complete medium voltage power supply network.The fireproof plugging process of the cable in and out of the household hole of the ring network has a direct impact on the traffic safety in the rail running area.According to the actual operation experience of Lanzhou Rail transit Line 1,a technical renovation project that meets the requirements of the fire prevention code and the requirements of the firm fixing is analyzed,summarized and implemented to ensure the safety of the operation traffic.

关 键 词：城市轨道 中压环网 电缆孔洞 封堵工艺 

分 类 号：U223.6[交通运输工程—道路与铁道工程]