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.
DESCRIPTION
Bare concentric-lay-stranded conductors are made from bare, hard-drawn, round, aluminum clad steel wires for general use of electrical purposes. Tensile strength and zinc-clad of steel wire have different grades.
STANDARDS
● IEC 61089 Round Wire Concentric Lay Overhead Electrical Stranded Conductors
● ASTM A 475 Zinc-Coated Steel Wire Strand
● BS 183 General Purpose Galvanized Steel Wire Strand
● AS 1222.1 Steel Conductors and Stays—Bare overhead Part 1: Galvanized (SC/GZ)
● GB/T 1179 Round Wire Concentric Lay Overhead Electrical Stranded Conductors
Technical data
| GSW | |||||||||
| Nominal diameter of strand | Number of Wires in Strand | Nominal Diameter of Coated Wire in Strand | Approx.weight of strand | Minimun Breaking Strength of Strand | |||||
| Utilities Grade | Common Grade | Siemens-Martin Grade | High-Strength Grade | Extra-high Strength Grade | |||||
| In. | mm | mm | kg/km | kN | kN | kN | kN | kN | |
| 1/8 | 3.18 | 7 | 1.04 | 48 | – | 2.402 | 4.048 | 5.916 | 8.14 |
| 5/32 | 3.97 | 7 | 1.32 | 76 | – | 3.87 | 6.539 | 9.519 | 13.078 |
| 3/16 | 4.76 | 7 | 1.57 | 109 | – | 5.115 | 8.452 | 12.677 | 17.748 |
| 3/16 | 4.76 | 7 | 1.65 | 119 | 10.676 | – | – | – | – |
| 7/32 | 5.56 | 3 | 2.64 | 131 | – | 6.228 | 10.409 | 15.569 | 21.796 |
| 7/32 | 5.56 | 7 | 1.83 | 146 | – | 6.85 | 11.387 | 17.126 | 24.02 |
| 1/4 | 6.35 | 3 | 3.05 | 174 | 14.012 | 8.274 | 13.523 | 21.04 | 29.981 |
| 1/4 | 6.35 | 3 | 3.05 | 20.017 | – | – | – | – | |
| 1/4 | 6.35 | 7 | 2.03 | 180 | – | 8.452 | 14.012 | 21.129 | 29.581 |
| 9/32 | 7.14 | 3 | 3.3 | 204 | – | 9.252 | 15.035 | 23.398 | 33.362 |
| 9/32 | 7.14 | 7 | 2.36 | 244 | 20.462 | 11.432 | 18.905 | 28.469 | 39.812 |
| 5/16 | 7.94 | 3 | 3.68 | 255 | 28.913 | 11.076 | 18.193 | 28.246 | 40.479 |
| 5/16 | 7.94 | 7 | 2.64 | 305 | – | 14.234 | 23.798 | 35.586 | 49.82 |
| 5/16 | 7.94 | 7 | 2.77 | 335 | 26.689 | – | – | – | – |
| 3/8 | 9.52 | 3 | 4.19 | 328 | 37.81 | 14.813 | 24.732 | 37.187 | 52.489 |
| 3/8 | 9.52 | 7 | 3.05 | 407 | 51.155 | 18.905 | 30.915 | 48.04 | 68.503 |
| 7/16 | 11.11 | 7 | 3.68 | 595 | 80.068 | 25.355 | 41.591 | 64.499 | 92.523 |
| 1/2 | 12.7 | 7 | 4.19 | 770 | 111.206 | 32.917 | 53.823 | 83.627 | 119.657 |
| 1/2 | 12.7 | 19 | 2.54 | 751 | – | 33.895 | 56.492 | 84.961 | 118.768 |
| 9/16 | 14.29 | 7 | 4.78 | 1000 | – | 42.703 | 69.837 | 108.981 | 155.688 |
| 9/16 | 14.29 | 19 | 2.87 | 949 | – | 42.881 | 71.616 | 107.202 | 149.905 |
| 5/8 | 15.88 | 7 | 5.26 | 1211 | – | 51.599 | 84.961 | 131.667 | 188.605 |
| 5/8 | 15.88 | 19 | 3.18 | 1186 | – | 48.93 | 80.513 | 124.995 | 178.819 |
| 3/4 | 19.05 | 19 | 3.81 | 1721 | – | 71.172 | 116.543 | 181.487 | 259.331 |
| 7/8 | 22.22 | 19 | 4.5 | 2356 | – | 97.416 | 159.691 | 248.211 | 354.523 |
| 1 | 25.4 | 19 | 5.08 | 3089 | – | 127.664 | 209.066 | 325.61 | 464.839 |
| 1 | 25.4 | 37 | 3.63 | 3065 | – | 125.885 | 205.508 | 319.827 | 456.832 |
| 11/8 | 28.58 | 37 | 4.09 | 4010 | – | 160.136 | 262 | 407.457 | 581.827 |
| 11/4 | 31.75 | 37 | 4.55 | 4840 | – | 198.391 | 324.72 | 505.318 | 721.502 |
| GSW | |||||||||
| Construction Number of wires/wire diameter | Approximate strand diameter | Minimum breaking load of strand | Approx.mass | ||||||
| Grade 350 | Grade 480 | Grade 700 | Grade 850 | Grade 1000 | Grade 1150 | Grade 1300 | |||
| mm | kN | kN | kN | kN | kN | kN | kN | kg/1000 m | |
| 3/1.80 | 3.9 | 2.65 | 3.66 | — | — | — | — | — | 60 |
| 3/2.65 | 5.7 | 5.8 | 7.95 | — | — | — | — | — | 130 |
| 3/3.25 | 7 | 8.7 | 11.95 | — | — | — | — | — | 195 |
| 3/4.00 | 8.6 | 13.2 | 18.1 | — | — | — | — | — | 295 |
| 4/1.80 | 4.4 | 3.55 | 4.9 | — | — | — | — | — | 80 |
| 4/2.65 | 6.4 | 7.7 | 10.6 | — | — | — | — | — | 172 |
| 4/3.25 | 7.9 | 11.6 | 15.9 | — | — | — | — | — | 260 |
| 4/4.00 | 9.7 | 17.6 | 24.1 | 35.2 | — | — | — | — | 390 |
| 5/1.50 | 4.1 | 3.1 | 4.24 | 6.18 | — | — | — | — | 69 |
| 5/1.80 | 4.9 | 4.45 | 6.1 | 8.9 | — | — | — | — | 95 |
| 5/2.65 | 7.2 | 9.65 | 13.25 | 19.3 | — | — | — | — | 220 |
| 5/3.25 | 8.8 | 14.5 | 19.9 | 29 | — | — | — | — | 320 |
| 5/4.00 | 10.8 | 22 | 30.15 | 43.95 | — | — | — | — | 490 |
| 7/0.56 | 1.7 | 0.6 | 0.83 | 1.2 | — | 1.7 | 1.98 | 2.24 | 14 |
| 7/0.71 | 2.1 | 0.97 | 1.33 | 1.94 | — | 2.75 | 3.19 | 3.6 | 28 |
| 7/0.85 | 2.6 | 1.39 | 1.9 | 2.8 | — | 3.95 | 4.57 | 5.15 | 31 |
| 7/0.90 | 2.7 | 1.55 | 2.14 | 3.1 | — | 4.45 | 5.12 | 5.8 | 35 |
| 7/1.00 | 3 | 1.92 | 2.64 | 3.85 | — | 5.5 | 6.32 | 7.15 | 43 |
| 7/1.25 | 3.8 | 3.01 | 4.1 | 6 | — | 8.55 | 9.88 | 11.15 | 67 |
| 7/1.40 | 4.2 | 3.75 | 5.17 | 7.54 | 9.16 | 10.75 | 12.35 | 14 | 84 |
| 7/RSa | 4.3 | 3.85 | 5.28 | 7.7 | 9.35 | 11 | 12.65 | 14.3 | 86 |
| 7/1.60 | 4.8 | 4.9 | 6.75 | 9.85 | 11.95 | 14.1 | 16.2 | 18.3 | 110 |
| 7/1.80 | 5.4 | 6.23 | 8.55 | 12.45 | — | 17.8 | 20.5 | 23.2 | 140 |
| 7/2.00 | 6 | 7.7 | 10.55 | 15.4 | — | 22 | 25.3 | 28.6 | 170 |
| 7/2.36 | 7.1 | 10.7 | 14.7 | 21.4 | — | 30.6 | 35.2 | 39.8 | 240 |
| 7/2.65 | 8 | 13.5 | 18.5 | 27 | — | 38.6 | 44.4 | 50.2 | 300 |
| 7/3.00 | 9 | 17.3 | 23.75 | 34.65 | — | 49.5 | 56.9 | 64.3 | 392 |
| 7/3.15 | 9.5 | 19.1 | 26.2 | 38.2 | — | 54.55 | 62.75 | 70.9 | 430 |
| 7/3.25 | 9.8 | 20.3 | 27.85 | 40.65 | — | 58.05 | 66.8 | 75.5 | 460 |
| 7/3.65 | 11 | 25.6 | 35.15 | 51.25 | — | 73.25 | 84.2 | 95.2 | 570 |
| 7/4.00 | 12 | 30.9 | 42.2 | 61.6 | — | 88 | 101 | 114 | 690 |
| 7/4.25 | 12.8 | 34.75 | 47.65 | 69.5 | — | 99.3 | 114 | 129 | 780 |
| 7/4.75 | 14 | 43.4 | 59.45 | 86.8 | — | 124 | 142.7 | 161.3 | 970 |
| 19/1.00 | 5 | 5.22 | 7.16 | 10.45 | — | 14.92 | 17.16 | 19.4 | 120 |
| 19/1.25 | 6.3 | 8.16 | 11.19 | 16.32 | — | 23.32 | 26.81 | 30.31 | 180 |
| 19/1.40 | 7 | 10.24 | 14.04 | 20.47 | — | 29.25 | 33.64 | 38.02 | 230 |
| 19/1.60 | 8 | 13.37 | 18.34 | 26.75 | — | 38.2 | 43.93 | 49.66 | 300 |
| 19/2.00 | 10 | 20.9 | 28.65 | 41.78 | 50.74 | 59.69 | 68.64 | 77.6 | 470 |
| 19/2.50 | 12.5 | 32.65 | 44.8 | 65.29 | 79.28 | 93.27 | 107.3 | 121.3 | 730 |
| 19/3.00 | 15 | 47 | 64.5 | 94 | 114.1 | 134.3 | 154.5 | 174.6 | 1050 |
| 19/3.55 | 17.8 | 65.8 | 90.27 | 131.6 | 159.9 | 188 | 216.3 | 244.5 | 1470 |
| 19/4.00 | 20 | 83.55 | 114.6 | 167.1 | 203 | 238.7 | 274.6 | 310.4 | 1870 |
| 19/4.75 | 23.8 | 117.85 | 161.6 | 235.7 | 286 | 336.7 | 387.2 | 437.7 | 2630 |
| GSW (SC/GZ） | ||||||
| Standing and wire diameter | Approx. overall diameter | Cross-section area | Approx. mass per km | Calculated breaking load (CBL) | Equivalent aluminium area | Typical d.c. resistance per km at 20℃ |
| mm | mm | mm² | kg | kN | mm² | Ω |
| 3/2.00 | 4.31 | 9.426 | 74 | 11.7 | 1.4 | 20 |
| 3/2.75 | 5.93 | 17.82 | 140 | 22.2 | 2.6 | 11 |
| 7/2.00 | 6 | 21.99 | 173 | 26 | 3.2 | 8.7 |
| 7/2.75 | 8.25 | 41.58 | 328 | 49 | 6.1 | 4.6 |
| 7/3.25 | 9.75 | 58.07 | 458 | 68.7 | 8.6 | 3.3 |
| 7/3.75 | 11.3 | 77.28 | 609 | 91.3 | 11 | 2.5 |
| 19/2.00 | 10 | 59.7 | 473 | 70.5 | 8.8 | 3.2 |
| 19/2.75 | 13.8 | 112.9 | 894 | 133 | 17 | 1.7 |
| 19/3.25 | 16.3 | 157.6 | 1250 | 186 | 23 | 1.2 |
| Code Number | Area mm2 |
Number of wires | Diameter mm |
Linear Mass kg/km |
Rated strength kN |
DC resistance Ω/km |
|||||
| Wire | Cond. | JG1A | JG2A | JG3A | JG4A | JG5A | |||||
| 10 | 10.8 | 7 | 1.4 | 4.2 | 84.8 | 14.44 | 15.62 | 17.46 | 20.15 | 21.12 | 17.9754 |
| 15 | 17.8 | 7 | 1.8 | 5.4 | 140.1 | 23.87 | 25.83 | 28.86 | 33.31 | 34.91 | 10.874 |
| 20 | 22 | 7 | 2 | 6 | 173 | 29.47 | 31.89 | 35.63 | 41.12 | 43.1 | 8.8079 |
| 25 | 26.6 | 7 | 2.2 | 6.6 | 209.3 | 35.66 | 38.58 | 43.11 | 49.76 | 52.15 | 7.2793 |
| 35 | 37.2 | 7 | 2.6 | 7.8 | 292.4 | 48.69 | 52.4 | 59.09 | 67.64 | 70.99 | 5.2118 |
| 40 | 38.2 | 19 | 1.6 | 8 | 301.9 | 51.19 | 55.39 | 61.89 | 71.44 | 74.88 | 5.0939 |
| 50 | 49.5 | 7 | 3 | 9 | 389.2 | 64.82 | 69.77 | 78.67 | 90.05 | 94.51 | 3.9146 |
| 48.3 | 19 | 1.8 | 9 | 382.1 | 64.79 | 70.11 | 78.33 | 90.41 | 94.76 | 4.0248 | |
| 55 | 56.3 | 7 | 3.2 | 9.6 | 442.9 | 72.62 | 79.38 | 87.26 | 99.65 | 105.3 | 3.4406 |
| 60 | 59.7 | 19 | 2 | 10 | 471.7 | 79.98 | 86.55 | 96.7 | 111.6 | 117 | 3.2601 |
| 65 | 67.3 | 7 | 3.5 | 10.5 | 529.8 | 86.88 | 94.96 | 104.4 | 119.2 | 125.9 | 2.8761 |
| 70 | 72.2 | 19 | 2.2 | 11 | 570.8 | 96.78 | 104.73 | 117 | 135.1 | 141.6 | 2.6943 |
| 75 | 74.4 | 37 | 1.6 | 11.2 | 589.4 | 99.7 | 107.9 | 120.5 | 139.1 | 145.8 | 2.6225 |
| 80 | 79.4 | 7 | 3.8 | 11.4 | 624.5 | 102.4 | 109.6 | 120.7 | 136.5 | 144.5 | 2.4399 |
| 78.9 | 19 | 2.3 | 11.5 | 623.9 | 103.4 | 111.3 | 125.5 | 143.7 | 150.8 | 2.4651 | |
| 90 | 88 | 7 | 4 | 12 | 692 | 113.5 | 121.4 | 133.7 | 151.3 | 160.1 | 2.202 |
| 95 | 94.8 | 19 | 2.52 | 12.6 | 748.9 | 124.14 | 133.62 | 150.68 | 172.5 | 181 | 2.0535 |
| 100 | 101 | 19 | 2.6 | 13 | 797.2 | 132.1 | 142.2 | 160.4 | 183.6 | 192.7 | 1.9291 |
| 115 | 116 | 37 | 2 | 14 | 921 | 155.8 | 168.5 | 188.3 | 217.4 | 227.8 | 1.6784 |
| 125 | 125 | 19 | 2.9 | 14.5 | 991.8 | 164.4 | 177 | 199.5 | 228.4 | 239.7 | 1.5506 |
| 150 | 153 | 19 | 3.2 | 16 | 1207.6 | 197.1 | 215.5 | 236.9 | 270.5 | 285.7 | 1.2735 |
| 155 | 154 | 37 | 2.3 | 16.1 | 1218 | 201.4 | 216.8 | 244.4 | 279.8 | 293.6 | 1.2691 |
| 185 | 183 | 19 | 3.5 | 17.5 | 1444.7 | 235.8 | 257.8 | 283.3 | 323.6 | 341.8 | 1.0645 |
| 200 | 196 | 37 | 2.6 | 18.2 | 1556.5 | 257.3 | 277 | 312.3 | 357.5 | 375.2 | 0.9931 |
| 240 | 239 | 19 | 4 | 20 | 1886.9 | 308 | 329.5 | 362.9 | 410.7 | 434.5 | 0.815 |
| 245 | 244 | 37 | 2.9 | 20.3 | 1936.4 | 320.2 | 344.6 | 388.6 | 444.8 | 466.8 | 0.7983 |
| 300 | 298 | 37 | 3.2 | 22.4 | 2357.7 | 383.9 | 419.6 | 461.2 | 526.7 | 556.5 | 0.6556 |
| 355 | 356 | 37 | 3.5 | 24.5 | 2820.5 | 459.2 | 501.9 | 551.8 | 630.1 | 665.7 | 0.548 |
| 465 | 465 | 37 | 4 | 28 | 3683.9 | 599.8 | 641.6 | 706.7 | 799.7 | 846.2 | 0.4196 |
FAQ
Galvanized Steel Wire are manufactured from high-quality steel wire rods using precision drawing and galvanising processes. The galvanised coating protects the steel substrate from corrosion, enhances durability and ensures long service life even in challenging environmental conditions.
·Exceptional tensile strength for reliable line support
·Uniform dimensional and quality consistency
·Excellent corrosion resistance due to galvanisation
·High fatigue resistance in dynamic weather conditions
·Long service life with low maintenance requirements
·Suitable for diverse environmental condition
Galvanized Steel Wire is common used in Pole and tower support systems,Overhead line guying and anchoring,Grounding and earthing networks,Shielding earth wires for transmission lines,Infrastructure requiring mechanical stability and structural reinforcement.
