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HomeBare Overhead Conductor

    Bare Overhead Conductor

    All Aluminum Alloy Conductor (AAAC Conductor)

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    OVERVIEW

    AAAC cable consists of aluminum alloy wires. The aluminum alloy wires are concentrically stranded. This section deals with heat-treatable magnesium silicon type aluminium alloys to the applicable international standard, the electrical and mechanical properties of which all fall within the values suggested by relevant standard. Conductors to all other recognized specifications can also be supplied.

    STANDARD

    ASTM B398, B399; BS EN50183, BS3242; IEC61089; DIN48201

    Contruction

    Standard 6201-T81 high strength aluminum conductors, conforming to ASTM Specification B-399, are concentric-lay-stranded, similar in construction and appearance to 1350 grade aluminum conductors. Standard 6210 alloy conductors are similar to other alloy conductors commercially known as Ardival, Aldrey or Almelec. They were developed to fill the need for an economical conductor for overhead applications requiring higher strength than that obtainable with 1350 grade aluminum conductors, but without a steel core. The DC resistance at 20 °C of the 6201-T81 conductors and of the standard ACSR of the same diameter are approximately the same. Conductors of the 6201-T81 alloys are harder and , therefore, have a greater resistance to abrasion than conductors of 1350-H19 grade aluminum.

    Application

    Used as bare overhead conductor for primary and secondary distribution. Designed utilizing a high-strength aluminum alloy to achieve a high strength-to-weight ratio; affords better sag characteristics. Aluminum alloy gives AAAC higher resistance to corrosion than ACSR.

     

    Technical Parameter

    ASTM Standard
    BS Standard
    IEC Standard
    DIN Standard
    Code Name Area Size & Stranding of ACSR with Equal Diameter No. & Diameter of wires Overall Diameter Weight Nominal Breaking Load Area Stranding and Wire Diameter  Approx Overall Diameter Weight Nominal Breaking Load Max.D.C. Resistance at 20℃
    Nominal Actual Nominal Actual
    MCM mm2 AWG or MCM Al/Steel mm mm kg/km kN AWG or MCM  mm² mm mm kg/km kN Ω/km
    Akron 30.58 15.48 6 6/1 7/1.68 5.04 42.7 4.92 6 13.3  7/1.554 4.67 37 4.22 2.5199
    Alton 48.69 24.71 4 6/1 7/2.12 6.35 68.0 7.84 4 21.15  7/1.961 5.89 58 6.71 1.5824
    Ames 77.47 39.22 2 6/1 7/2.67 8.02 108 12.45 2 33.63  7/2.474 7.42 93 10.68 0.9942
    Azusa 123.3 62.38 1/0 6/1 7/3.37 10.11 172 18.97 1/0 53.48  7/3.119 9.36 148 16.97 0.6256
    Anaheim 155.4 78.65 2/0 6/1 7/3.78 11.35 217 23.93 2/0 67.42  7/3.503 10.51 186 20.52 0.4959
    Amherst 195.7 99.22 3/0 6/1 7/4.25 12.75 273 30.18 3/0 85.03  7/3.932 11.8 234 25.86 0.3936
    Alliance 246.9 125.1 4/0 6/1 7/4.77 14.31 345 38.05 4/0 107.23  7/4.417 13.26 296 32.63 0.3119
    Butte 312.8 158.6 266.8 26/7 19/3.26 16.30 437 48.76 250 126.66 19/2.913 14.57 349 38.93 0.2642
    Canton 394.5 199.9 336.4 26/7 19/3.66 18.30 551 58.91 300 152.1 19/3.193 15.97 419 46.77 0.2199
    Cairo 465.4 235.8 397.5 26/7 19/3.98 19.88 650 69.48 350 177.35 19/3.447 17.24 489 52.25 0.1887
    Darien 559.5 283.5 477.0 26/7 19/4.36 21.79 781 83.52 400 202.71 19/3.686 18.43 559 59.74 0.165
    Elgin 652.4 330.6 556.5 26/7 19/4.71 23.54 911 97.42 450 228 19/3.909 19.55 629 67.19 0.1467
    Flint 740.8 375.3 636.0 26/7 37/3.59 25.16 1035 108.21 500 253.35 19/4.120 20.6 698 74.64 0.1321
    Greely 927.2 469.8 795.0 26/7 37/4.02 28.14 1295 135.47 550 278.6 37/3.096 21.67 768 83.8 0.1202
                      600 303.8 37/3.233 22.63 838 91.38 0.1102
                      650 329.25 37/3.366 23.56 908 97.94 0.1016
                      700 354.55 37/3.493 24.45 978 102.2 0.0944
                      750 380.2 37/3.617 25.32 1049 109.6 0.088
                      800 405.15 37/3.734 26.14 1117 116.8 0.0826
                      900 456.16 37/3.962 27.73 1258 131.5 0.0733
                      1000 506.71 37/4.176 29.23 1399 146.1 0.066

    Standard: BS EN50183

    Code Name  Calculated
    Cross Section
    No..Dia.of Wires  Overall Diameter Weight Rated Strength Code Name  Calculated
    Cross Section
    No..Dia.of Wires  Overall Diameter Weight Rated Strength
      mm² No./mm mm kg/km kN   mm² No./mm mm kg/km kN
    Box 18.8 7/1.85 5.55  51.4  5.55 Ash 180.7  19/3.48 17.4  496.1  53.31
    Acacia 23.8 7/2.08 6.24  64.9  7.02 Elm 211.0 19/3.76 18.8 579.2 62.24
    Almond  30.1 7/2.34 7.02  82.2  8.88 Poplar 239.4 37/2.87 20.1 659.4  70.61
    Cedar 35.5 7/2.54 7.62  96.8 10.46 Sycamore 303.2 37/3.23 22.6 835.2 89.40
    Deodar 42.2 7/2.77 8.31 115.2 12.44 Upas 362.1 37/3.53 24.7 997.5 106.82
    Fir 47.8 7/2.95 8.85 130.6  14.11 Yew 479.0 37/4.06 28.4 1319.6 141.31
    Hazel 59.9 7/3.30 9.90 163.4 17.66 Totara 498.1 37/4.14 29.0 1372.1 146.93
    Pine 71.6 7/3.61 10.8 195.6 21.14 Rubus 586.9 61/3.50 31.5 1622.0 173.13
    Holly 84.1 7/3.91 11.7 229.5 24.79 Sorbus 659.4 61/3.71 33.4 1822.5 194.53
    Willow 89.7 7/4.04 12.1 245,0 26.47 Araucaria 821.1 61/4.14 37.3 2269.4 242.24
    Oak 118.9 7/4.65 14.0 324.5 35.07 Redwood 996.2 61/4.56 41.0 2753.2 293.88
    Mulberry 150.9 19/3.18 15.9 414.3 44.52            

    Standard: BS3242

    Code Name Nominal Area Stranding Diameter of
    Conductor
    Linear
    Mass
    Rated Strength Code Name Nominal Area Stranding Diameter of
    Conductor
    Linear
    Mass
    Rated Strength
      mm² No./mm  mm kg/km kgf   mm² No./mm  mm kg/km kgf
    Box 15 7/1.85 5.55 51 537   100 19/2.82  14.1  326 3393
    Acacia 20 7/2.08 6.24 65 680 Mulberry 125 19/3.18  15.9  415 4312
    Almond 25 7/2.34 7.02 82 861 Ash 150 19/3.48  17.4  497 5164
    Cedar 30 7/2.54 7.62 97 1014 Elm 175 19/3.76  18.8  580 6030
      35 7/2.77  8.31  115 1205 Poplar 200 37/2.87 20.09  659 8841
    Fir 40 7/2.95 8.85  131 1367   225 37/3.05 21.35  744 7724
    Hazel 50 7/3.30 9.9  164 1711 Sycamore 250 37/3.22 22.54  835 8664
    Pine 60  7/3.61 10.83  196 2048 Upas 300 37/3.53 24.71  997 10350
      70  7/3.91 11.73  230 2402 Walnut 350 37/3.81 26.67 1162 12053
    Willow 75 7/4.04 12.12  245 2565 Yew 400 37/4.06 28.42 1319 13685
      80 7/4.19 12.57  264 2758 Totara 425 37/4.14 28.98 1372 14233
      90 7/4.44 13.32  298 3112 Rubus 500 61/3.50 31.5 1620 16771
    Oak 100 7/4.65 13.95  325 3398 Araucaria 700 61/4.14 37.26 2266 23450
    Code Number A2 Conductor A3 Conductor  Max.D.C. Resistance of Conductor at 20℃
    Number of Wires  Diameter of Wires Diameter of Conductor Approx. Weight Rated Strength Number of Wires  Diameter of Wires Diameter of Conductor Approx. Weight Rated Strength
    mm² No. mm  mm kg/km daN - mm  mm kg/km daN Ω/km
     16 7 1.83 5.49  50.4  5.43 7 1.84 5.52  50.8  6.04 1.7896
     25 7 2.29 6.87  78.7  8.49 7 2.30 6.90  79.5  9.44 1.1453
     40 7 2.89 8.67 125.9  13.58 7 2.91 8.73 127.1  15.1 0.7158
     63 7 3.63  10.8 198.3 21.39 7 3.65  10.95 200.2 23.06 0.4545
    100 19 2.78  13.9 316.3 33.95 19 2.79  13.95 319.3 37.76 0.2877
    125 19 3.10  15.5 395.4 42.44 19 3.12  15.60 399.2 47.20 0.2302
    160 19 3.51 17.55 506.1 54.32 19 3.53 17.65 511.0 58.56 0.1798
    200 19 3.93 19.65 623.7  67.91 19 3.95 19.75 638.7  73.20 0.1439
    250 19 4.39 21.95 790.8 84.68 19 4.41 22.05 798.4 91.50 0.1151
    315 37 3.53 24.71 998.9 106.95 37 3.55 24.85 1008.4 115.29 0.0916
    400 37 3.98 27.86 1268.4 135.81 37 4.00 28.00 1280.5 146.40 0.0721
    450 37 4.22 29.54 1426.9 152.79 37 4.24 29.68 1440.5 164.70 0.0641
    500 37 4.45 31.15 1585.5 169.76 37 4.47 31.29 1600.6 183.00 0.0577
    560 61 3.67 33.03 1778.4 190.14 61 3.69 33.21 1795.3 204.95 0.0516
    630 61 3.89 35.01 2000.7 213.90 61 3.91 35.19 2019.8 230.58 0.0458
    710 61 4.13 37.17 2254.8 241.07 61 4.15 37.35 2276.2 259.86 0.0407
    800 61 4.38 39.42 2540.6 271.62 61 4.40 39.60 2564.8 282.80 0.0361
    900 91 3.81 41.91 2861.1 305.58 91 3.83 42.13 2888.3 329.40 0.0321
    1000 91 4.01 44.11 3179.0 339.53 91 4.03 44.33 3209.3 366.00 0.0289
    1120 91 4.25 46.75 3560.5 380.27 91 4.27 46.97 3594.4 409.92 0 0258
    1250 91 4.49 49.39 3973.7 424.41 - - - - - -
    Code Number Calculated
    Cross Section
    Number of Wires  Diameter of Wires Overall Diameter
    of Conductor
    Linear
    Mass
    Rated Tensile
    Strength
    Max.D.C. Resistance at 20℃
    mm²  mm² No.  mm mm kg/km  daN  Ω/km
     16 15.89 7 1.70  5.1 43 444 2.0910
     25 24.25 7 2.10 6.3 66 677 1.3703
     35 34.36 7 2.50 7.5 94 960 0.9669
     50 49.48 7 3.00 9.0  135 1382 0.6714
     50 48.35 19 1.80 9.0  133 1350 0.6905
     70  65.81 19 2.10 10.5  181 1838 0.5073
     95 93.27 19 2.50 12.5  256 2605 0.3579
    120 116.99 19 2.80 14.0  322 3268 0.2854
    150 147.11 37 2.25 15.8  406 4109 0.2274
    185 181.62 37 2.50 17.5  500 5073 0.1842
    240 242.54 61 2.25 20.3  670 6774 0.1383
    300 299.43 61 2.50 22.5  827 8363 0.1120
    400 400.14 61 2.89 26.0 1104 11176 0.0838
    500 499.63 61 3.23 29.1 1379 13960 0.06709
    625 626.20 91 2.96 32.6 1732 17490 0.0540
    800 802.09 91 3.35 36.9 2218 22402 0.0418
    1000 999.71 91 3.74 41.1 2767 27922 0.0335

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