500kV同塔四回路西江大跨越导线选型研究

Research on Conductor Selection of 500kV Xijiang Large Span Crossing Quadruple-circuits Tower

导线选择是大跨越设计一个重要环节。从电气性能、机械性能和综合投资等几个方面对5种适合大跨越使用的导线进行技术经济比较,优选出一种特强钢芯耐热铝合金绞线2×KTACSR/EST-1000导线,作为500kV狮子洋至五邑线路同塔四回路西江大跨越导线。

Conductor selection is the key point of large span crossing design. Having made particular technical and ecnomic comparison among five kinds of conductors which fit for large span on three aspects of electrical performance, mechanical characteristics and investment, the conductor type 2xKTACSR/EST-1000 was selected and recommended as the conductor for 500kV Xijiang large span crossing using in quadruple-circuits tower of Shiziyang-Wuyi transmission projiect.