5-会议论文-纳米改性铝合金材料在线缆产品的 - 中国电线电缆网cwc.doc

纳米改性铝合金材料在线缆产品的应用技术研究 ,汤超,蔡炜,何卫，姚辉，陈胜男 （国网电力科学研究院武汉南瑞有限责任公司，湖北 武汉：430074） 摘要：在纳米改性铝合金复合材料的基础上研制了高强铝合金芯铝绞线及高导全铝导线，以实际工程应用的675m2截面导线为例，对高强铝合金芯铝绞线（JL/GQLHA1-600/75）和钢芯铝绞线（JL/G1A－630/45）进行了全面的对比分析，总结了高强铝合金芯铝绞线输送容量大、损耗小、防腐性能优良的技术优势，阐述了高导全铝导线比重轻、电阻小、强度高、无涡流损耗、安装方便等特点。对比普通钢芯铝绞线（JL/G1A-630/45）和新型铝合金导线（GQLHA4-675）在材料性能、高温弧垂特性、载流量和电阻损耗方面的特性，结果表明，高导全铝导线高温弧垂特性、载流量和电阻损耗均要优于钢芯铝绞线，能够有效的增加线路的送电能力，达到增容节能的功效。 关键词：高强铝合金芯铝绞线；高导全铝导线；钢芯铝绞线；弧垂；载流量；电阻损耗 Research on application technology of nano-modified aluminium alloy cable products WANG Li-min, TANG Chao, CAI Wei, HE Wei, YAO Hui, CHEN Sheng-nan (Wuhan NARI Limited Liability Company of State Grid Electric Power Research Institute, Wuhan 430074, China) Abstract：luminum conductor alloy highly reinforced and high conductivity are developed based on nano-modified composite material of alloy aluminum.Take the 675mm2 section of practical engineering application for example, the new wire(JL/GQLHA1-600/75) has higher capacity,lower loss,better anticorrosive property than ACSR(JL/G1A－630/45).Compared with traditional wire,high conductivity aluminium wire has such advantages as light specific gravity, low resistance, high strength, no eddy current loss, easy installation. Through the comarison between JL/G1A-630/45 and GQLHA4-675 conductor, especially with the respect of the material performance, high temperature characteristics of sag, carrying capacity and resistance loss of the two conductors, it proves that high conductivity aluminium wire shows better performance in high temperature characteristics of sag, carrying capacity and resistance loss than traditional wire. So high conductivity aluminium wire can effectively increase line transmission ability and reach the function of capacity increasing and energy conservation. Key words：aluminum conductor alloy highly reinforced; high conductivity aluminium wire; steelcored aluminium strand; characteristics of sag; carrying capacity; resistance loss 引言 根据我国电力工业十二五发展规划，预计2015年全国110kV及以上输电线路长度将达130万