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- 铜含量：35 ﹪ 产地：大连 铜包铝线高频电流具有 “趋肤效应”的特点，即往往集中在导体的表面层传输。用纯铜线作内导体时，其中心部分的铜没有起到传输电流的作用，可以说是浪费了。如果用铜管作内导体则是最节约的，但铜管不但强度较低，而且当电缆弯曲时易将铜管压瘪，而影响信号的传输特性。因此，便在铜管中充填铝，制成双金属复合导线，即为铜包铝线用作同轴电缆的内导体。在传输高频信号（大于5MHz）时，具有与纯铜线相同的导电性能。铜包铝线的优点1.特的复合性能：铜包铝线同时具备铜的导电性与铝的密度小的复合特性；2.好的延展性和可深加工性：可像纯铜线一样作拉拔和退火处理，还可进一步深加工成铜包漆包线。3.明显的经济效益：铜包铝线的密度仅为纯铜线的37--40%，其长度是同等质量同等直径的纯铜线的2.45---2.65倍，将大大降低生产成本。4.显著的社会效益和环境效益：节省大量稀缺的铜资源；减轻电缆重量，便与运输和网络施工，减轻工人劳动强度;包覆焊接法生产工艺不污染环境。 铜包铝线应用领域1.高频信号传输方面：①有线电视同轴电缆的首选内导体材料。②50Ω射频电缆，柔性射频同轴电缆内导体材料。③漏泻电缆内导体材料。④计算机电缆、其他数据电缆内导体材料。⑤微细同轴电缆内导体材料。2.电力传输方面：①电脑周边线。②绞线。③电力电缆导体材料。④汽车、机车专用电缆内导体。⑤建筑布电线导体材料。⑥汇流排等导体材料。⑦保险丝。⑧射频屏蔽网。 参考数据1.铜包铝线的最薄铜层厚度和5～100MHz信号传输时的趋肤深度：铜包铝线直径mm最薄铜层厚度mm趋肤深度mm10A10H15A15H5MHz15MHz100MHz2.150.0380.0540.029960.021190.00672.770.0480.0693.150.0550.079 2.铜包铝线与纯铜导线的性能比较：
指标铜包铝线CCA15纯铜线密度（g/cm3）3.538.89铜层质量比（%）34100最大直流电阻率（Ωmm2/m）0.026760.017421最小相对导电率（%IACS）65100长度比（同等质量同等线径时）2.51伸长率（%）硬态〉1.0软态>15硬态0.2-0.5软态30-45
常用铜包铝线直径及特性常数标称直径(mm)截面积(mm²)铜层厚度(mm)单位长度质量(Kg/Km)单位长度直流电阻(Ώ/Km)20℃CCA抗拉强度（Mpa）CCA伸长率（%）10%15%10%15%纯铜线10%15%纯铜线AHAH6.0028.260.1050.15093.82102.58251.200.970.950.61138124151.55.1520.820.0900.12969.1275.58185.091.321.290.83138152151.55.0820.260.0890.12767.2673.54180.111.351.320.85138152151.54.9719.390.0870.12464.3770.39172.571.411.380.89138152151.54.9018.850.0860.12362.5868.42167.751.461.420.91138152151.54.8518.470.0850.12160.3267.03164.341.491.450.93138152151.54.8018.090.0840.12060.0975.70160.971.521.480.95138152151.54.5015.900.0790.11352.7945.59141.471.731.681.08138159151.54.0012.560.0700.10041.7042.46111.782.182.131.37138166151.53.8611.700.0680.09738.8436.93104.472.352.291.47138166151.53.6010.170.0630.09033.7634.9190.552.702.631.69138172151.53.509.6160.0610.08831.9332.5585.582.852.781.79138172151.53.388.9680.0590.08529.7729.1879.823.062.981.92138172151.53.208.0380.0560.08026.6925.6571.543.413.332.14138179151.03.007.0650.0530.07523.4523.1562.883.883.792.44138179151.02.856.3760.0500.07121.1722.3456.754.304.202.70138186151.02.806.1540.0490.07020.4321.8654.774.464.352.80138186151.02.776.0230.0460.06919.8817.8153.614.554.442.86138186151.02.565.1450.0450.06417.0915.6845.875.365.293.08138193151.02.504.9060.0440.06316.2915.0843.665.595.543.51138193151.02.304.1530.0400.05813.9713.7936.966.616.444.15138200151.02.203.7990.03850.05512.6113.5433.817.227.044.54138200151.02.183.7300.03820.05412.3913.1733.207.357.174.62138200151.02.153.6290.03770.05812.0511.9832.307.567.374.75138200151.02.053.2990.0360.05110.9511.4029.368.318.115.23138205151.0
