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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.
BS183, ASTM A475
The single Steel wires are concentrically stranded and wrapped helically around a central wire.
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.
| 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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