摘要
大截面导线对节能降耗,建设"资源节约型、环境友好型"电网具有重要意义,西北(宁东)—华北(山东)±660 kV输电线路采用4×JL/G3A-1000/45导线方案经济上合理,技术上先进。针对1 000 mm2大截面导线结构和架线技术与扩径导线的不同,主要介绍架线设备的选型、张力放线、导线压接、紧线和附件安装等施工技术要点及施工注意事项。实践证明,采用"一牵四"方案架设1 000 mm2大截面导线,作业安全、高效、环保。
Application of large cross-section conductor is of great significance to building the ＂resource-saving and environment-friendly＂ grid. The Northwest （Niug East） - North China （Shandong） ± 660 kV transmission line project which uses 4 xJL/G3A-1000/45 is economically reasonable and technologically advanced. Considering the structure and stringing technique of the 1000 mm^2 large cross section conductor is different from those of the diameter-expanded conductor, this paper focuses on the key construction techniques and construction precautions arranging from the selection of the conductor stringing machine, tension stringing and conductor jointing to installation of attachments. The construction practice has proved that adoption of ＂One Pulling Four＂ proposal helps to make the stringing of 1000 mm^2 large cross section conductor safer, more efficient and environment-friendly.
出处
《电网与清洁能源》
2011年第12期8-13,共6页
Power System and Clean Energy
关键词
直流输电线路
±660kV
大截面导线
施工技术
DC transmission line
±660 kV
large cross- section conductor
construction technology
