长距离跨桥高压电缆的关键技术设计  

Key Technologies in Laying High-Voltage Cables under Long-Distance Bridges

作　　者：赵艳粉[1] 

机构地区：[1]上海材料研究所,上海200025

出　　处：《电网与清洁能源》2013年第11期25-28,共4页Power System and Clean Energy

摘　　要：在跨海大桥上敷设电力电缆不仅能够起到安全、可靠、经济地输送电能的目的,还能解决许多岛屿采用独立小发电系统,其发电成本高、可靠性低、环保效果差等问题。结合目前现有的桥梁上敷设电缆的设计经验,介绍了在进行桥梁上敷设高压电缆时在电缆热伸缩、桥梁伸缩与振动、电缆空间布置及电缆与其他管线相互影响等方面的关键技术设计,可对今后桥梁电缆的施工、运行提供借鉴。Laying power cables on cross-sea bridges can not only realize transmission of electricity safely, reliably and economically, but also solve the power supply issue on small islands with independent power systems, which are often characteristic of high cost, low reliability, and poor environm- ental effects. Considering the current experience of laying power cables on bridges, this paper presents the key design technolo- gies of cable thermal extension, bridge extension and vibration, cable spatial arrangement, and the interactions between the cable and other pipelines during laying high-voltage cables and therefore provides useful reference for the construction and operation of the bridge cable in future.

关 键 词：高压电缆 桥梁 热伸缩 空间布置 电缆敷设 

分 类 号：TM757[电气工程—电力系统及自动化]