AAAC / All Aluminum Alloy Conductor

All aluminum alloy Conductor (AAAC) Definition: All strands are stranded wires of aluminum alloy wire.Since it was put into production in 2008, the product quality has been relatively stable, the production efficiency is high, and the market share is high in the international market.

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    AAAC has high strength and good sag characteristics. AAAC is 21% ~ 26% lighter than ACSR, and its deformation tension is 21% ~ 23% lower. The tensile strength of AAAC is 1.7 ~ 1.8 times that of ordinary conductor. The ratio of total breaking force to weight per unit length of high strength all aluminum alloy stranded wire without strip core is more than 10km, which is higher than that of reinforced steel cored wire in the past (about 9km). Therefore, it can effectively reduce the height of the tower, or increase the erection spacing, and reduce the project investment.

    Advantage:

    1. AAAC has large mechanical resistance than AAC which permits its use as a bare overhead conductor on aerial circuits for power transmission and distribution lines.
    2. AAAC has better sag characteristics and strength to weight ratio as compared to AAC.
    3. AAAC weight per unit and resistance is also lower which gives it advantage over the ACSR. Also, AAAC conductor has better corrosion protection than ASCR conductors.

    AAAC All Standard

    BS 3242

    Code NameNominal Area
    (mm²)
    Stranding
    (No./mm)
    Diameter Of Conductor
    (mm)
    Linear Mass
    (kg/km)
    Rated Strength
    (kgf)
    Box157/1.855.5551537
    Acacia207/2.086.2465680
    Almond257/2.347.0282861
    Cedar307/2.547.62971014
      357/2.778.311151205
    Fir407/2.958.851311367
    Hazel507/3.309.91641711
    Pine607/3.6110.831962048
      707/3.9111.732302402
    Willow757/4.0412.122452565
      807/4.1912.572642758
      907/4.4413.322983112
    Oak1007/4.6513.953253398
     10019/2.8214.13263393
    Mulberry12519/3.1815.94154312
    Ash15019/3.4817.44975164
    Elm17519/3.7618.85806030
    Poplar20037/2.8720.096598841
     22537/3.0521.357447724
    Sycamore25037/3.2222.548358664
    Upas30037/3.5324.7199710350
    Walnut35037/3.8126.67116212053
    Yew40037/4.0628.42131913685
    Totara42537/4.1428.98137214233
    Rubus50061/3.5031.5162016771
    Araucaria70061/4.1437.26226623450

    DIN 48201

    Nominal area
    (mm^2)
    actual area
    (mm^2)
    Stranding
    (No.xmm)
    Overall Diameter
    (mm)
    Weight
    (kg/km)
    Rated Strength
    (KN)
    Electrical
    Resistance
    (Ω/Km)
    Current Rating*
    (A)
    1615.897/1.705.1434.442.074278
    2524.257/2.106.3666.771.3593102
    3534.367/2.507.5949.60.9591126
    5049.487/3.00913513.820.666158
    5048.3519/1.80913313.50.6849156
    7065.8119/2.1010.518118.380.5032189
    9593.2719/2.5012.525626.050.3551234
    120116.9919/2.801432232.680.2831269
    150147.1137/2.2515.840641.090.2256309
    185181.6237/2.5017.550050.730.1828352
    240242.5461/2.2520.367067.740.1371420
    300299.4361/2.5022.582783.630.111477
    400400.1461/2.89261104111.760.0831568
    500499.8361/3.2329.11379139.60.0665649
    625*626.291/2.9632.61732174.90.0531742
    800*802.0991/3.3536.92218224.020.0415857
    1000*999.7191/3.7441.12767279.220.0333971

    BS EN50182

    CodeStranding
    (No.xmm)
    Nominal Area
    (mm^2)
    Overall Diameter
    (mm)
    Weight
    (kg/km)
    Rated Strength
    (KN)
    Electrical
    Resistance
    (Ω/Km)
    Current Rating*
    (A)
    Box7/1.8518.85.5551.45.551.74887
    Acacia7/2.0823.86.2464.97.021.3828101
    Almond7/2.3430.17.0282.28.881.0926116
    Cedar7/2.5435.57.6296.810.460.9273129
    Deodar7/2.7742.28.31115.212.440.7797143
    Fir7/2.9547.88.85130.614.110.6875155
    Hazel7/3.3059.99.9163.417.660.5494178
    Pine7/3.6171.610.83195.621.140.4591199
    Holly7/3.9184.111.73229.524.790.3913219
    Willow7/4.0489.712.1224526.470.3665228
    Oak7/4.65118.913.95324.535.070.2767272
    Mulberry19/3.18150.915.9414.344.520.2192314
    Ash19/3.48180.717.4496.153.310.183351
    Elm19/3.7621118.8579.262.240.1568386
    Poplar37/2.87239.420.09659.470.610.1387416
    Sycamore37/3.23303.222.61835.289.40.1095480
    Upas37/3.53362.124.71997.5106.820.0917535
    Yew37/4.0647928.421319.6141.310.0693633
    Totara37/4.14498.128.981372.1146.930.0666648
    Rubus61/3.50586.931.51622173.130.0567714
    Sorbus61/3.71659.433.391822.5194.530.0505764
    Araucaria61/4.14821.137.262269.4242.240.0406868
    Redwood61/4.56996.241.042753.2293.880.0334970

    ASTM B399

    Nominal AreaStranding
    (No.xmm)
    Overall Diameter
    (mm)
    Weight
    (kg/km)
    Rated Strength
    (KN)
    Electrical
    Resistance
    (Ω/Km)
    Current Rating*
    (A)
    AWG&MCMmm^2
    613.27/1.554.6536.24.182.536169
    421.17/1.965.8857.96.691.58693
    233.57/2.477.419210.60.9987123
    053.57/3.129.36146.8170.62592165
    2/067.37/3.5010.5184.820.40.49738190
    3/084.97/3.9311.7923325.70.3945219
    4/01077/4.4213.26294.732.50.31188253
    25012619/2.9114.55346.738.80.26509280
    30015219/3.1915.95416.746.60.22059313
    35017819/3.4517.25487.3520.1886345
    40020319/3.6918.45557.559.50.16486375
    45022819/3.9119.5562666.80.14683402
    50025319/4.1220.669574.20.13224429
    55027937/3.1021.7766.283.90.11995455
    60030337/3.2322.61831.9910.11049478
    65033037/3.3723.59905.594.90.1015504
    70035437/3.4924.43971.21010.09464525
    75038137/3.6225.3410451090.08796549
    80040437/3.7326.1111091160.08285569
    90045637/3.9627.7212501310.07351612
    100050837/4.1829.2613931460.06597653
    125063161/3.6332.6717321790.05306743
    150075961/3.9835.8220822150.04414827
    175088661/4.3038.724312510.03781904

    NFC 34125

    Code NameActual section
    (mm²)
    No. of wireWire
    diameter
    (mm)
    Conductor diameter
    (mm)
    Conductor weight
    appr.
    (kg/km)
    Calc. breaking
    force
    (kN)
    Conductor resistance at
    20°C
    (Ohm/km)
    ASTER 2221.9972660.27.151,498
    ASTER 34.434.3672.57.593.511.170.959
    ASTER 54.654.5573.159.45148.917.730.604
    ASTER 75.575.54192.2511.3207.424.550.438
    ASTER 117116.98192.814321.238.020.283
    ASTER 148148.01193.1515.8406.648.120.223
    ASTER 181.6181.62372.517.5500.359.030.183
    ASTER 228227.83372.819.6627.674.040.146
    ASTER 288288.34373.1522.1794.393.710.115
    ASTER 366366.22373.5524.91.008.9115.360.09
    ASTER 570570.22613.4531.11.576.0185.330.058
    ASTER 851850.66913.45382.360.7276.470.039
    ASTER 11441143.5914443.173.4360.220.029
    ASTER 16001595.91274524.427.5502.720.021

    According to the French experience, the span is increased from 350m-400m to 550m, and the construction investment can be saved by 5% – 8% if the high-strength all aluminum alloy wire is used instead of ACSR in the new line;

    High conductivity, large transmission capacity and small line loss. The conductivity of AAAC is 6% ~ 11% higher than that of corresponding ACSR, with lower AC impedance and 3% less line loss. When the ACSR is replaced by AAAC, the capacity of the transmission line can be increased without any modification or enhancement of the original supporting tower;

    Good corrosion resistance. The steel strand in ACSR has the problem of electric corrosion in operation, especially in the polluted area. The aluminum alloy monofilament used by AAAC is more corrosion-resistant than ordinary aluminum, and AAAC has no steel core, so there is no electric corrosion problem of steel wire;

    The surface is resistant to damage. The hardness of the aluminum alloy wire is twice that of the aluminum wire, which can reduce the surface scratch of the wire, improve the construction quality, and reduce the corona loss and radio interference level;

    Good creep resistance, high elongation and high temperature characteristics. According to the standard value, the elongation of aluminum wire is 2 times of that of aluminum wire (1.5%), and the actual test value can reach 7% ~ 8%. It has excellent overload capacity and fatigue characteristics. At high temperature, the strength loss is small, and the high temperature operation plays the role of artificial aging, increasing the conductivity by 2% ~ 5%;

    Good connectivity, simple and convenient connection. Large torque can be used without considering the cold deformation of conductor;

    Compared with ACSR, AAAC has no steel core and is of the same material. Its recyclability is greatly improved and its recycling rate is high, which is beneficial to environmental protection.

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