ACSR-720/50大截面导线一牵四张力放线工况分析与施工措施  

Analysis of technology condition and construction measure about one-drag-four tension stringing for ACSR-720/50 wire with large section

作　　者：程更生 孙涛[2] 

机构地区：[1]国网直流工程建设有限公司,北京100005 [2]国家电网公司,北京100031

出　　处：《中国电力》2008年第7期33-36,共4页Electric Power

摘　　要：一牵四张力放线对一般截面导线是较成熟的施工工艺,可是对720/50大截面导线张力放线施工在国内还是首例,在施工方法上有共性也有其特殊性,值得探讨。用"理论指导实践"的思路结合工程特点,依据相关导则要求,从牵张力理论计算角度分析龙政直流C段工程大截面导线一牵四放线施工方案,并通过对不同地形牵张力理论值的对比来选择施工机械设备和施工方法,在工程实践中取得了成功,为今后大截面导线张力架线施工提供参考思路。For the general section of the wire, one-drag-four tension stringing is mature construction technology. But for 720/50 wire with large section, their construction methods have something in common and also in particularity, which are worth us exploring. According to the requirements of Technology Guide for tension stringing construction of Three Gorges DC Transmission Line Project, combining the idea of ＂theory, guide practice＂ with the engineering characteristics, the paper analyzed the feasibility of ＂one-drag-four＂ tension stringing construction scheme for the wire with large section in Longzheng HVDC Part C Project from the viewpoint of theoretical calculation. And the appropriate construction machinery equipment and construction methods were chosen by comparing with the theoretical values in different terrain, which is successful in the project practice and will provide reference for the future wire construction with large section.

关 键 词：大截面 一牵四 张力架线 理论分析 

分 类 号：TM752[电气工程—电力系统及自动化]