特高压输电线路大高差、大截面多型号导线连续上下山展放施工研究

Multi Type Conductors with Large Height Difference and Large Cross Section for UHV Transmission Lines Study on the Construction of Continuous up and Down Hill Spreading

本文以雅中至江西±800 kV特高压直流输电线路工程导线展放施工为例,针对特高压输电线路大高差、大截面多型号导线连续上下山展放等施工难点,通过优化场地选择、上扬及预倾斜控制、分段施加张力、多型号导线优化连接等措施,解决了施工难题。

Taking the conductor laying construction of Yazhong Jiangxi±800 kV HVDC transmission line project as an example,aiming at the construction difficulties such as large height difference of UHV transmission line,continuous laying of large cross-section multi type conductors up and down the mountain,the construction problems are solved by optimizing site selection,rising and pre tilting control,applying tension by sections,optimizing connection of multi type conductors,etc.