特高压交流试验示范工程大跨越OPGW选型建议  

Recommendations for Large Span OPGW Selection for UHV AC Demonstration Project

作　　者：万建成[1] 郑永平[2] 王怡风[3] 王旭锋[1] 张晔[1] 冯学斌[1] 

机构地区：[1]国网北京电力建设研究院,北京市100055 [2]中南电力设计院,武汉市430071 [3]上海市电力公司,上海市200122

出　　处：《电力建设》2007年第12期43-46,共4页Electric Power Construction

摘　　要：光纤复合架空地线(OPGW)是集通信光纤与架空输电线路避雷线于一体的地线,既要满足光纤通信的技术要求,也要满足作为地线所必备的特性要求,包括机械强度、电气性能。特高压交流试验示范线路的2个大跨越用OPGW选型设计,建议采用层绞不锈钢管式结构,在允许的情况下,外层铝包钢单丝直径应不小于4.0mm。应从绞合单丝材质、外层单丝直径、直流电阻、热稳定校验和余长设计等5个方面,提高OPGW的性能。OPGW is a type of earthing wire combining optical fiber communication and overhead transmission line lightning wire. It has to meet not only technical requirements for optical fiber communication, but also requirements necessary for earthing wire, including mechanical strength and electric performance. It is recommended that the OPGW used in the two large spans of the UHV AC demonstration line should adopt stranded stainless steel tube OPGW, and the diameter of the aluminum thread steel cladding core should be at least 4.0 mm. Measures in 5 aspects, such as stranded wire material, outer layer wire diameter, DC resistance, thermal stability checking and redundant length design, should be taken to improve OPGW performance.

关 键 词：特高压交流示范工程 大跨越 OPGW 选型建议 

分 类 号：TM751[电气工程—电力系统及自动化]