GSW-Galvanized Steel Wire/Strand

GSW-Galvanized Steel Wire/Strand

Model Number: TW THHN THW THW-2 THHW THWN
Packaging Details: Wooden-Steel Drum
Introduction
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.
Specification
● 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 parameter
ASTM A475
BS 183
AS 1222.1
GB/T1179
GSW                                                        ASTM A475
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 8.140 
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 24.020 
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  174 20.017 - - - -
1/4 6.35 7 2.03  180 - 8.452 14.012 21.129 29.581 
9/32 7.14 3 3.30  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 49.820 
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 4.50  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                                                                                BS 183
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/km
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 18.10  295 
4/1.80 4.4 3.55 4.90  80 
4/2.65 6.4 7.7 10.60  172 
4/3.25 7.9 11.6 15.90  260 
4/4.00 9.7 17.6 24.10  35.2 390 
5/1.50 4.1 3.1 4.24  6.18 69 
5/1.80 4.9 4.45 6.10  8.9 95 
5/2.65 7.2 9.65 13.25  19.3 220 
5/3.25 8.8 14.5 19.90  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 1.90  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 4.10  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 14.70  21.4 30.6 35.2 39.8 240 
7/2.65 8 13.5 18.50  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 26.20  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 42.20  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 44.80  65.29 79.28 93.27 107.3 121.3 730 
19/3.00 15 47 64.50  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 83.55 114.60  167.1 203 238.7 274.6 310.4 1870 
19/4.75 23.8 117.85 161.60  235.7 286 336.7 387.2 437.7 2630 
GSW (SC/GZ)                                                      AS 1222.1
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°C
mm mm mm² kg kN mm² Ω
3/2.00 4.31 9.426 74.00  11.7 1.4 20
3/2.75 5.93 17.82 140.00  22.2 2.6 11
7/2.00 6.00  21.99 173.00  26 3.2 8.7
7/2.75 8.25 41.58 328.00  49 6.1 4.6
7/3.25 9.75 58.07 458.00  68.7 8.6 3.3
7/3.75 11.3 77.28 609.00  91.3 11 2.5
19/2.00 10 59.7 473.00  70.5 8.8 3.2
19/2.75 13.8 112.9 894.00  133 17 1.7
19/3.25 16.3 157.6 1250.00  186 23 1.2
GSW                                                          GB/T1179
Code Number Calculated Area Number of
wires
Diameter Linear Mass Rated strength D.C. Resistance
Wire Cond. JG1A JG2A JG3A JG4A JG5A
  mm²   mm mm kg/km kN kN kN KN kN Ω/km
10 10.8 7 1.40  4.20  84.8 14.44 15.62 17.46 20.15  21.12 17.9754 
15 17.8 7 1.80  5.40  140.1 23.87 25.83 28.86 33.31  34.91 10.8740 
20 22 7 2.00  6.00  173 29.47 31.89 35.63 41.12  43.1 8.8079 
25 26.6 7 2.20  6.60  209.3 35.66 38.58 43.11 49.76  52.15 7.2793 
35 37.2 7 2.60  7.80  292.4 48.69 52.4 59.09 67.64  70.99 5.2118 
40 38.2 19 1.60  8.00  301.9 51.19 55.39 61.89 71.44  74.88 5.0939 
50 49.5 7 3.00  9.00  389.2 64.82 69.77 78.67 90.05  94.51 3.9146 
50 48.3 19 1.80  9.00  382.1 64.79 70.11 78.33 90.41  94.76 4.0248 
55 56.3 7 3.20  9.60  442.9 72.62 79.38 87.26 99.65  105.3 3.4406 
60 59.7 19 2.00  10.00  471.7 79.98 86.55 96.7 111.60  117 3.2601 
65 67.3 7 3.50  10.50  529.8 86.88 94.96 104.4 119.20  125.9 2.8761 
70 72.2 19 2.20  11.00  570.8 96.78 104.73 117 135.10  141.6 2.6943 
75 74.4 37 1.60  11.20  589.4 99.7 107.9 120.5 139.10  145.8 2.6225 
80 79.4 7 3.80  11.40  624.5 102.4 109.6 120.7 136.50  144.5 2.4399 
80 78.9 19 2.30  11.50  623.9 103.4 111.3 125.5 143.70  150.8 2.4651 
90 88 7 4.00  12.00  692 113.5 121.4 133.7 151.30  160.1 2.2020 
95 94.8 19 2.52  12.60  748.9 124.14 133.62 150.68 172.50  181 2.0535 
100 101 19 2.60  13.00  797.2 132.1 142.2 160.4 183.60  192.7 1.9291 
115 116 37 2.00  14.00  921 155.8 168.5 188.3 217.40  227.8 1.6784 
125 125 19 2.90  14.50  991.8 164.4 177 199.5 228.40  239.7 1.5506 
150 153 19 3.20  16.00  1207.6 197.1 215.5 236.9 270.50  285.7 1.2735 
155 154 37 2.30  16.10  1218 201.4 216.8 244.4 279.80  293.6 1.2691 
185 183 19 3.50  17.50  1444.7 235.8 257.8 283.3 323.60  341.8 1.0645 
200 196 37 2.60  18.20  1556.5 257.3 277 312.3 357.50  375.2 0.9931 
240 239 19 4.00  20.00  1886.9 308 329.5 362.9 410.70  434.5 0.8150 
245 244 37 2.90  20.30  1936.4 320.2 344.6 388.6 444.80  466.8 0.7983 
300 298 37 3.20  22.40  2357.7 383.9 419.6 461.2 526.70  556.5 0.6556 
355 356 37 3.50  24.50  2820.5 459.2 501.9 551.8 630.10  665.7 0.5480 
465 465 37 4.00  28.00  3683.9 599.8 641.6 706.7 799.70  846.2 0.4196 
Wind power application11
Chunbin Cable Group Co.,Ltd.was founded in 1989 by a father and a son in a small factory. After 30 years hard working, now it has developed into a mature enterprise. With near 100 product models, 732000 squire feet covered, 5 core enterprises, 16.74 Million US dollars, more than 600 sales outlets.
Wind power application22
Chunbin Cable Group Co.,Ltd.was founded in 1989 by a father and a son in a small factory. After 30 years hard working, now it has developed into a mature enterprise. With near 100 product models, 732000 squire feet covered, 5 core enterprises, 16.74 Million US dollars, more than 600 sales outlets.
Wind power application33
Chunbin Cable Group Co.,Ltd.was founded in 1989 by a father and a son in a small factory. After 30 years hard working, now it has developed into a mature enterprise. With near 100 product models, 732000 squire feet covered, 5 core enterprises, 16.74 Million US dollars, more than 600 sales outlets.
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