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    All Aluminum Alloy Conductor (AAAC) Cables

    Application

    AAAC is mainly used as bare overhead transmission cable and as primary and secondary distribution cable. It is also suitable for laying across basins, rivers and valleys where special geographical teatures exist.

    Standards

    Basic design to BS 3242 / BS EN 50182 / IEC 61089 / ASTM B 399/B 399M / DIN 48201-6 standards

    Cable Construction

    AAAC cable bvconsists 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. The alloys referred to have higher strength but lower conductivity than pure aluminium. Being lighter, alloy conductors can sometimes be used to advantage in place of the more conventional ACSR; Having lower breaking loads than the later, their use becomes particularly favourable when ice and wind loadings are low.

    Electrical Properties

    Density@20oC 2.70 kg/dm
    Temperature Coefficient@20°C 0.00360 (°C)
    Resistivity@20°C 0.0326 Ohms mm²/m
    Linear Expansivity 23 x10-6 (°C)

    Service Conditions

    Ambient Temperature -5°C - 50°C
    Wind Pressure 80 – 130kg/m²
    Seismic Acceleration 0.12 - 0.05g
    Isokeraunic Level 10 – 18
    Relative Humidity 5 – 100%

    Construction Parameters

    BS 3242

    Code AL Nominal Area Cu Nominal Area Equivalent Total Area Stranding Overall Diameter Weight
      mm² mm² mm² No.×mm mm kg/km
    - - 6.45 11.7 7/1.47 4.41 32.2
    Box - 9.68 18.8 7/1.85 5.55 51.7
    Acacia - 12.9 21.9 7/2.08 6.24 66.1
    Almond 25 16.1 30.1 7/2.34 7.02 82.9
    Ceda 30 19.4 35.5 7/2.54 7.62 97.8
    - 40 22.6 42.2 7/2.77 8.31 116.4
    Fir 50 25.8 47.8 7/2.95 8.85 131.8
    Hazel 100 32.3 59.9 7/3.30 9.9 165
    Pine - 38.7 71.7 7/3.61 10.83 197.7
    - - 45.2 84.1 7/3.91 11.73 231.6
    Willow 150 48.4 89.8 7/4.04 12.12 247.5
    - 175 51.6 96.5 7/4.19 12.57 266.2
    - 300 58.1 108.8 7/4.45 13.35 299.8
    Oak - 64.5 118.9 7/4.65 13.95 327.8
    - - 80.6 118.8 19/2.82 14.1 327.6
    Mulberry - 96.8 151.1 19/3.18 15.9 416.7
    Ash - 113 180.7 19/3.48 17.4 498.1
    Elm - 129 211 19/3.76 18.8 582.1
    Poplar - 145 239 37/2.87 20.09 658.8
    - - 161 270.8 37/3.05 21.35 746.7
    Sycamore - 194 303 37/3.23 22.61 834.9
    Upas - 226 362.1 37/3.53 24.71 998.6
    - - 258 421.8 37/3.81 26.47 1163
    Yew - - 479.9 37/4.06 28.42 1323

    (*) Note: The values of current rating mentioned in above Table are based on wind velocity of 0.6 metre/second, solar heat radiation of 1200 watt/metre2, ambient temperature of 50°C & conductor temperature of 80°C.

    BS EN 50182

    Code Stranding Nominal Area Overall Diameter Weight Rated Strength Electrical
    Resistance
    Current
    Rating*
      No.×mm mm² mm kg/km KN Ω/Km A
    Box 7/1.85 18.8 5.55 51.4 5.55 1.748 87
    Acacia 7/2.08 23.8 6.24 64.9 7.02 1.3828 101
    Almond 7/2.34 30.1 7.02 82.2 8.88 1.0926 116
    Cedar 7/2.54 35.5 7.62 96.8 10.46 0.9273 129
    Deodar 7/2.77 42.2 8.31 115.2 12.44 0.7797 143
    Fir 7/2.95 47.8 8.85 130.6 14.11 0.6875 155
    Hazel 7/3.30 59.9 9.9 163.4 17.66 0.5494 178
    Pine 7/3.61 71.6 10.83 195.6 21.14 0.4591 199
    Holly 7/3.91 84.1 11.73 229.5 24.79 0.3913 219
    Willow 7/4.04 89.7 12.12 245 26.47 0.3665 228
    Oak 7/4.65 118.9 13.95 324.5 35.07 0.2767 272
    Mulberry 19/3.18 150.9 15.9 414.3 44.52 0.2192 314
    Ash 19/3.48 180.7 17.4 496.1 53.31 0.183 351
    Elm 19/3.76 211 18.8 579.2 62.24 0.1568 386
    Poplar 37/2.87 239.4 20.09 659.4 70.61 0.1387 416
    Sycamore 37/3.23 303.2 22.61 835.2 89.4 0.1095 480
    Upas 37/3.53 362.1 24.71 997.5 106.82 0.0917 535
    Yew 37/4.06 479 28.42 1319.6 141.31 0.0693 633
    Totara 37/4.14 498.1 28.98 1372.1 146.93 0.0666 648
    Rubus 61/3.50 586.9 31.5 1622 173.13 0.0567 714
    Sorbus 61/3.71 659.4 33.39 1822.5 194.53 0.0505 764
    Araucaria 61/4.14 821.1 37.26 2269.4 242.24 0.0406 868
    Redwood 61/4.56 996.2 41.04 2753.2 293.88 0.0334 970

    (*) Note: The values of current rating mentioned in above Table are based on wind velocity of 0.6 metre/second, solar heat radiation of 1200 watt/metre2, ambient temperature of 50°C & conductor temperature of 80°C.

    IEC 60189

    Code Nominal Area Stranding Overall Diameter Weight Rated Strength Electrical Resistance Current Rating*
      mm² No.×mm mm kg/km KN Ω/Km A
    16 18.4 7/1.83 5.49 50.4 5.43 1.7896 86
    25 28.8 7/2.29 6.87 78.7 8.49 1.1453 113
    40 46 7/2.89 8.67 125.9 13.58 0.7158 151
    63 72.5 7/3.63 10.89 198.3 21.39 0.4545 200
    100 115 19/2.78 13.9 316.3 33.95 0.2877 266
    125 144 19/3.1 15.5 395.4 42.44 0.2302 305
    160 184 19/3.51 17.55 506.1 54.32 0.1798 355
    200 230 19/3.93 19.65 632.7 67.91 0.1439 407
    250 288 19/4.39 21.95 790.8 84.88 0.1151 466
    315 363 37/3.53 24.71 998.9 106.95 0.0916 535
    400 460 37/3.98 27.86 1268.4 135.81 0.0721 618
    450 518 37/4.22 29.54 1426.9 152.79 0.0641 663
    500 575 37/4.45 31.15 1585.5 169.76 0.0577 706
    560 645 61/3.67 33.03 1778.4 190.14 0.0516 755
    630 725 61/3.89 35.01 2000.7 213.9 0.0458 809
    710 817 61/4.13 37.17 2254.8 241.07 0.0407 866
    800 921 61/4.38 39.42 2540.6 271.62 0.0361 928
    900* 1036 91/3.81 41.91 2861.1 305.58 0.0321 992
    1000* 1151 91/4.01 44.11 3179 339.53 0.0289 1051
    1120* 1289 91/4.25 46.75 3560.5 380.27 0.0258 1118
    1250* 1439 91/4.49 49.39 3973.7 424.41 0.0231 1185

    (*) Note: The values of current rating mentioned in above Table are based on wind velocity of 0.6 metre/second, solar heat radiation of 1200 watt/metre2, ambient temperature of 50°C & conductor temperature of 80°C.

    ASTM B 399/B 399M

    Nominal Area Stranding Overall Diameter Weight Rated Strength Electrical Resistance Current Rating*
    AWG&MCM mm² No.×mm mm kg/km KN Ω/Km A
    6 13.2 7/1.55 4.65 36.2 4.18 2.5361 69
    4 21.1 7/1.96 5.88 57.9 6.69 1.586 93
    2 33.5 7/2.47 7.41 92 10.6 0.9987 123
    0 53.5 7/3.12 9.36 146.8 17 0.62592 165
    2/0 67.3 7/3.50 10.5 184.8 20.4 0.49738 190
    3/0 84.9 7/3.93 11.79 233 25.7 0.3945 219
    4/0 107 7/4.42 13.26 294.7 32.5 0.31188 253
    250 126 19/2.91 14.55 346.7 38.8 0.26509 280
    300 152 19/3.19 15.95 416.7 46.6 0.22059 313
    350 178 19/3.45 17.25 487.3 52 0.1886 345
    400 203 19/3.69 18.45 557.5 59.5 0.16486 375
    450 228 19/3.91 19.55 626 66.8 0.14683 402
    500 253 19/4.12 20.6 695 74.2 0.13224 429
    550 279 37/3.10 21.7 766.2 83.9 0.11995 455
    600 303 37/3.23 22.61 831.9 91 0.11049 478
    650 330 37/3.37 23.59 905.5 94.9 0.1015 504
    700 354 37/3.49 24.43 971.2 101 0.09464 525
    750 381 37/3.62 25.34 1045 109 0.08796 549
    800 404 37/3.73 26.11 1109 116 0.08285 569
    900 456 37/3.96 27.72 1250 131 0.07351 612
    1000 508 37/4.18 29.26 1393 146 0.06597 653
    1250 631 61/3.63 32.67 1732 179 0.05306 743
    1500 759 61/3.98 35.82 2082 215 0.04414 827
    1750 886 61/4.30 38.7 2431 251 0.03781 904

    (*) Note: The values of current rating mentioned in above Table are based on wind velocity of 0.6 metre/second, solar heat radiation of 1200 watt/metre2, ambient temperature of 50°C & conductor temperature of 80°C.

    DIN 48201 Part 6

    Nominal Area Stranding Overall Diameter Weight Rated Strength Electrical Resistance Current Rating*
    Nominal Teorical
    mm² mm² No.×mm mm kg/km KN Ω/Km A
    16 15.89 7/1.70 5.1 43 4.44 2.0742 78
    25 24.25 7/2.10 6.3 66 6.77 1.3593 102
    35 34.36 7/2.50 7.5 94 9.6 0.9591 126
    50 49.48 7/3.00 9 135 13.82 0.666 158
    50 48.35 19/1.80 9 133 13.5 0.6849 156
    70 65.81 19/2.10 10.5 181 18.38 0.5032 189
    95 93.27 19/2.50 12.5 256 26.05 0.3551 234
    120 116.99 19/2.80 14 322 32.68 0.2831 269
    150 147.11 37/2.25 15.8 406 41.09 0.2256 309
    185 181.62 37/2.50 17.5 500 50.73 0.1828 352
    240 242.54 61/2.25 20.3 670 67.74 0.1371 420
    300 299.43 61/2.50 22.5 827 83.63 0.111 477
    400 400.14 61/2.89 26 1104 111.76 0.0831 568
    500 499.83 61/3.23 29.1 1379 139.6 0.0665 649
    625* 626.2 91/2.96 32.6 1732 174.9 0.0531 742
    800* 802.09 91/3.35 36.9 2218 224.02 0.0415 857
    1000* 999.71 91/3.74 41.1 2767 279.22 0.0333 971

    * The items marked with “*” are not in our current product range and the details are for information only.

    (*) Note: The values of current rating mentioned in above Table are based on wind velocity of 0.6 metre/second, solar heat radiation of 1200 watt/metre2, ambient temperature of 50°C & conductor temperature of 80°C.

    Technical Data

    Code AL Nominal Area Maximum Resistance DC at 20°C Current Rating
    Temperate Tropical
      mm² Ω / km Ω / 1000ft Amp Amp
    - - 2.87 0.873 90 73
    Box - 1.79 0.544 121 98
    Acacia - 1.4 0.426 140 114
    Almond 25 1.11 0.339 162 131
    Ceda 30 0.944 0.288 180 145
    - 40 0.794 0.242 200 162
    Fir 50 0.7 0.213 217 175
    Hazel 100 0.559 0.17 250 201
    Pine - 0.467 0.142 279 224
    - - 0.398 0.121 309 247
    Willow 150 0.373 0.114 322 258
    - 175 0.347 0.106 337 270
    - 300 0.308 0.0938 343 290
    Oak - 0.282 0.0859 384 307
    - - 0.282 0.086 385 307
    Mulberry - 0.222 0.0676 448 356
    Ash - 0.185 0.0565 501 398
    Elm - 0.159 0.048 553 438
    Poplar - 0.14 0.0427 598 473
    - - 0.124 0.0337 647 511
    Sycamore - 0.111 0.0377 694 547
    Upas - 0.0925 0.0282 776 610
    - - 0.0794 0.0242 854 669
    Yew - 0.0698 0.0213 925 723
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