跨海大桥高压随桥电缆接地方案设计  

Design of High-voltage Cable Grounding Scheme for Sea Crossing Bridge

作　　者：谢仕挺 高震 徐建良 张振鹏 林镕兴 赵新东[5] XIE Shiting;GAO Zhen;XU Jianliang;ZHANG Zhenpeng;LIN Rongxing;ZHAO Xindong(State Grid Zhoushan Power Supply Company of Zhejiang Power Corporation,Zhoushan 316000,China;Zhejiang Zhoushan Marine Power Research Institute Co.,Ltd.,Zhoushan 316000,China;China Electric Power Research Institute,Wuhan 430074,China;College of Electrical Engineering and Automation,Fuzhou University,Fuzhou 350108,China;School of Electrical and Electronic Engineering,Harbin University of Science and Technology,Harbin 150080,China)

机构地区：[1]国网浙江省电力有限公司舟山供电公司,浙江舟山316000 [2]浙江舟山海洋输电研究院有限公司,浙江舟山316000 [3]中国电力科学研究院有限公司,湖北武汉430074 [4]福州大学电气工程与自动化学院,福建福州350108 [5]哈尔滨理工大学电气与电子工程学院,黑龙江哈尔滨150080

出　　处：《电工技术》2022年第13期44-47,共4页Electric Engineering

摘　　要：为满足舟山绿色石化基地最新负荷需求并提高供电安全性,结合远景岱山县岱北变落点的规划,考虑构建以舟山变为中心的北部环网结构,需建设舟山-鱼东2回220 kV输电线路。目前,输电线路在海域的走线主要以海上架空线和海底电缆为主,可是这两种方案都存在令人难以接受的缺点,因此舟山-鱼东2回220 kV电缆采取随桥敷设的方式。舟岱大桥全长16.35 km,为满足电缆长距离跨桥敷设的要求,从电缆敷设位置、电缆及附件的选型、电缆防伸缩、电缆防振措施、电缆的接地设计等方面对长距离跨桥电缆的敷设方案进行设计。In order to meet the latest load demand of Zhoushan green petrochemical base and improve the power supply safety,combined with the long-term planning of the landing point of Daibei transformer substation in Daishan County,it is considered to build the northern ring network structure centered on Zhoushan transformer substation,and it is necessary to build Zhoushan-Yudong two circuit 220 kV transmission line.At present,the transmission lines in the sea area is mainly offshore overhead lines and submarine cables,but these two schemes have unacceptable shortcomings.Therefore,Zhoushan-Yudong two circuit 220 kV cable are laid along the bridge.The total length of Zhoudai bridge is 16.35 km.In order to meet the requirements of long-distance bridge laying,the laying scheme of long-distance bridge cable is designed from the aspects of cable laying position,selection of cables and accessories,cable anti expansion,cable anti vibration measures,cable grounding design etc.

关 键 词：220 kV电缆 随桥敷设 接地 

分 类 号：TM75[电气工程—电力系统及自动化]