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    Bare Overhead Conductor

    Galvanized Steel Wire (GSW)

    INQUIRY MESSAGE

    OVERVIEW

    Galvanized steel wire refers to any steel wire product that has subjected to a galvanizing process to improve its resistance to corrosion. This process typically involves dipping the finished wire product into a bath of heated zinc compound to form a scratch- and corrosion-resistant coating across the entire surface of the wire.

    STANDARD

    BS183, ASTM A475

    Construction

    The single Steel wires are concentrically stranded and wrapped helically around a central wire.

    Application

    The galvanized single steel wires or stranded steel wires are suitable for cores of ACSR to improve its tensile strength. And they can also be used in the aerial transmission line as the line material of ground connection to avoid the lightning strike.

    Technical Parameter

    BS Standard
    ASTM Standard
    No./Dia. of Wires Approx. Stranded Dia. Minimum Break Load of Stranding Wires Approx Weight No./Dia. of Wires Approx. Stranded Dia. Minimum Break Load of Stranding Wires Approx. Weight
    Grade 350 Grade 480 Grade 700 Grade 850 Grade 1000 Grade 1150 Grade 1300 Grade 350 Grade 480 Grade 700 Grade 850 Grade 1000 Grade 1150 Grade 1300
    No./mm  mm kN kN kN kN kN kN kN kg/km No./mm  mm kN kN kN kN kN kN kN kg/km
    3/1.80 3.9 2.65 3.66 60 7/2.00 6.0 7.70 10.55 15.40 22.00 25.30 28.60 170
    3/2.65 5.7 5.80 7.95 130 7/2.36 7.1 10.70 14.70 21.40 30.60 35.20 39.80 240
    3/3.25 7.0 8.70 11.95 195 7/2.65 8.0 13.50 18.50 27.00 38.60 44.40 50.20 300
    3/4.00 8.6 13.20 18.10 295 7/3.00 9.0 17.30 23.75 34.65 49.50 56.90 64.30 392
    4/1.80 4.4 3.55 4.90 80 7/3.15 9.5 19.10 26.20 38.20 54.55 62.75 70.90 430
    4/2.65 6.4 7.70 10.60 172 7/3.25 9.8 20.30 27.85 40.65 58.05 66.80 75.50 460
    4/3.25 7.9 11.60 15.90 260 7/3.65 11.0 25.60 35.15 51.25 73.25 84.20 95.20 570
    4/4.00 9.7 17.60 24.10 35.20 390 7/4.00 12.0 30.90 42.20 61.60 88.00 101.0 114.0 690
    5/1.50 4.1 3.10 4.24 6.18 69 7/4.25 12.8 34.75 47.65 69.50 99.30 114.0 129.0 780
    5/1.80 4.9 4.45 6.10 8.90 95 7/4.75 14.0 43.40 59.45 86.80 124.0 142.7 161.3 970
    5/2.65 7.2 9.65 13.25 19.30 220 19/1.0 5.0 5.22 7.16 10.45 14.92 17.16 19.40 120
    5/3.25 8.8 14.50 19.90 29.00 320 19/1.25 6.3 8.16 11.19 16.32 23.32 26.81 30.31 180
    5/4.00 10.8 22.00 30.15 43.95 490 19/1.40 7.0 10.24 14.04 20.47 29.25 33.64 38.02 230
    7/0.56 1.7 0.60 0.83 1.20 1.70 1.98 2.24 14 19/1.6 8.0 13.37 18.35 26.75 38.20 43.93 49.66 300
    7/0.71 2.1 0.97 1.33 1.94 2.75 3.19 3.60 28 19/2.0 10.0 20.90 28.65 41.78 50.74 59.69 68.64 77.60 470
    7/0.85 2.6 1.39 1.90 2.80 3.95 4.57 5.15 31 19/2.5 12.5 32.65 44.80 65.29 79.28 93.27 107.3 121.3 730
    7/0.90 2.7 1.55 2.14 3.10 4.45 5.12 5.80 35 19/3.0 15.0 47.00 64.50 94.00 114.1 134.3 154.5 174.6 1050
    7/1.00 3.0 1.92 2.64 3.85 5.50 6.32 7.15 43 19/3.55 17.8 65.80 90.27 131.6 159.9 188.0 216.3 244.5 1470
    7/1.25 3.8 3.01 4.10 6.00 8.55 9.88 11.15 67 19/4.0 20.0 83.55 114.6 167.1 203.0 238.7 274.6 310.4 1870
    7/1.40 4.2 3.75 5.17 7.54 9.16 10.75 12.35 14.00 84 19/4.75 23.8 117.85 161.6 235.7 286.0 336.7 387.2 437.7 2630
    7RS* 4.3 3.85 5.28 7.70 9.35 11.00 12.65 14.30 86                    
    7/1.60 4.8 4.90 6.75 9.85 11.95 14.10 16.20 18.30 110                    
    7/1.80 5.4 6.23 8.55 12.45 17.80 20.50 23.20 140                    
    No./Dia. of Wires Approx. Stranded Dia. Siemem Martin Grade High Strength Grade Extra-high Strength Grade Approx. Weight No./Dia. of Wires Approx. Stranded Dia. Siemem Martin Grade High Strength Grade Extra-high Strength Grade Approx. Weight
    No./mm mm kN kN kN kg/km No./mm mm kN kN kN kg/km
    3/2.64 5.56 10.409 15.569 21.796 131 7/3.05 9.52 30.915 48.04 68.503 407
    3/3.05 6.35 13.523 21.04 29.981 174 7/3.68 11.11 41.591 64.499 92.523 594
    3/3.05 6.35 174 7/4.19 12.7 53.823 83.627 119.657 768
    3/3.30 7.14 15.035 23.398 33.362 204 7/4.78 14.29 69.837 108.981 155.688 991
    3/3.68 7.94 18.193 28.246 40.479 256 7/5.26 15.88 84.961 131.667 188.605 1211
    3/4.19 9.52 24.732 37.187 52.489 328 19/2.54 12.7 56.492 84.961 118.768 751
    7/1.04 3.18 4.048 5.916 8.14 49 19/2.87 12.49 71.616 107.202 149.905 948
    7/1.32 3.97 6.539 9.519 13.078 76 19/3.18 15.88 80.513 124.995 178.819 1184
    7/1.57 4.76 8.452 12.677 17.748 108 19/3.81 19.05 116.543 181.487 259.331 1719
    7/1.65 4.76 118 19/4.50 22.22 159.691 248.211 354.523 2352
    7/1.83 5.56 11.387 17.126 24.02 145 19/5.08 25.4 209.066 325.61 464.839 2384
    7/2.03 6.35 14.012 21.129 29.581 181 37/3.63 25.4 205.508 319.827 456.832 3061
    7/2.36 7.14 18.905 28.469 39.812 243 37/4.09 28.58 262 407.457 581.827 4006
    7/2.64 7.94 23.798 35.586 49.82 305 37/4.55 31.75 324.72 505.318 721.502 4833

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