钢芯高强度耐热铝合金导线在 500 kV大跨越工程中应用

Comparison and Selection of Heat － resistance Aluminum Alloy Conductor Steel Ｒeinforced with High Strength for Wangzhou Changjiang Large Span Installation and Its Application

摘要:

以重庆万州神华 500 kV 线路长江大跨越工程为例，通过对不同大跨越导线应用方案的载流量、电磁环境、荷 载、工程投资等技术经济指标进行了对比分析，结果表明钢芯高强度耐热铝合金导线具有明显的优势，可以在今后的 低海拔大跨越工程中广泛应用。

Abstract:

The comparison and selection of conductors are introduced in Changjiang river crossing project of Shenhua 500 kV transmission line in Wanzhou，Chongqing． The JGQNＲLH/EST － 630 /80 heat － resistant aluminum alloy conductor steel reinforced with high strength is selected from 6 different large span conductors through calculating the allowing current of conductor，the electromagnetic environment of all kinds of bundled conductor and the load of tower，and comprehensively comparing and analyzing the economy and technology．