架空输电线路耐热导线选型研究

通过对耐热导线的种类、结构和性能特点进行研究,结合工程实际对比分析了不同耐热导线在弧垂特性、输送容量、铁塔荷载和线路损耗方面的差异。铝基陶瓷纤维芯耐热铝合金绞线ACCR在弧垂、荷载和线损三方面的特性都能满足要求,碳纤维复合芯软铝绞线ACCC具有很好的机械特性,其弧垂和荷载两方面的指标在所有耐热导线中是最好的,只是其线损率较ACCR略有提高,但对于距离较短而档距较大的线路增容改造,ACCC仍是最佳的选择,同时适合大跨越和重要线路。为输电线路增容改造时的耐热导线选型提供技术参考。

Research on Heat Resistant Conductor Selection for Overhead Transmission Line

Through the heat-resistant conductor types,structure and performance characteristics,combined with the engineering practice on the comparison and analysis of the different heat-resistant conductor in HuChui characteristics,transport capacity,tower load and line loss differences.Aluminum matrix ceramic fiber core heat-resisting aluminum alloy conductor ACCR in HuChui,load and line loss three characteristic can meet the requirements,the carbon fibre composite core soft al stranding wire ACCC has good mechanical properties,its HuChui and load two aspects of index in all heat-resistant conductor is the best,just the line loss per unit is ACCR increases a little but for distance is short span larger line capacity and improvement,ACCC is still the best choice,and at the same time,suitable for long-span and important line.For transmission line capacity and improvement of heat-resistant conductor selection provide technical reference.