同塔多回高压架空输电线路的设计原则及其经济分析

针对近年来国内采用同塔多回架空输电线路中存在的问题，给出了同塔多回高压架空输电线路在设计、施工、制造和建设运行等方面采用的主要技术参数，并进行了经济性分析。分析结果表明：在部分线路路径选择特别困难或通道投资特别高的地区，同塔多回架空输电线路具有比较明显的优越性，可在工程中有选择性地采用同塔多回架空输电线路的型式。给出的设计原则可为将来健全输电线路设计规程提供参考。

Design Principles and Economic Analysis of Multi-loop High-Voltage Overhead Transmission Lines

In view of the existing problems of multi-loop overhead transmission lines in China,the main technical parameters of the multi-loop overhead transmission lines adopted in design,construction,manufacturing and operation phases are described and corresponding economic analysis is made.The analysis shows that the multi-loop overhead transmission lines have obvious advantages over single-loop overhead transmission lines in the regions where route conditions are very poor or cost for rout path is very high.There...