Galvanized Steel Conductor
The Galvanized Steel Conductor Cable Guard Wire offers robust mechanical protection for overhead power systems. Constructed from premium high-tensile steel wires with Class A or B hot-dip galvanization, it delivers exceptional resistance to rust, abrasion, and environmental stress. Meeting standards like ASTM A475 and BS EN 50189, this guard wire provides high breaking strength and flexibility for spanning long distances. Installed as an overhead shield, it prevents damage to conductors from external impacts, reducing downtime and maintenance costs. The uniform zinc layer ensures decades of service life even in coastal or polluted areas. Select our Galvanized Steel Conductor Cable Guard Wire for reliable overhead line guarding in electric utilities, telecommunications, and infrastructure projects worldwide.
- Standard ASTM A 475, BS 183, IEC 61089
Construction
Technical Specifications
Quality Control
Application
Construction
Galvanized Steel Conductor
Conductor
Galvanized Clad steel wire earthwire/staywire/guywire/spacer cable (GSW): GSW Earth Wire, Stay Wire, Guy Wires, Spaces Cables, etc. are used as overhead ground wire or static wire on transmission lines, as pole or structure guy wires, and as messenger cable for field-erected aerial cable.
Technical Specifications
Galvanized Steel Conductor
IEC 60189
ASTM A475
BS 183
| Code No. | Section Area | No./Dia of Wire | Approx. Overall Diameter | Approx. Weight | Breaking Load | DC Resistance at 20°C Max. | |||
| S1A | S1B | S2A | S3A | ||||||
| mm² | No./mm | mm | kg/km | kN | kN | kN | kN | Ohm/km | |
| 4 | 27.1 | 7/2.22 | 6.66 | 213.3 | 36.3 | 33.6 | 39.3 | 43.9 | 7.1445 |
| 6.3 | 42.7 | 7/2.79 | 8.36 | 335.9 | 55.9 | 51.7 | 60.2 | 67.9 | 4.5362 |
| 10 | 67.8 | 7/3.51 | 10.53 | 553.2 | 87.4 | 80.7 | 93.5 | 103.0 | 2.8578 |
| 12.5 | 84.7 | 7/3.93 | 11.78 | 666.5 | 109.3 | 100.8 | 116.9 | 128.8 | 2.2862 |
| 16 | 108.4 | 7/4.44 | 13.32 | 853.1 | 139.9 | 129.0 | 199.7 | 164.8 | 1.7861 |
| 16 | 108.4 | 19/2.70 | 13.48 | 857.0 | 142.1 | 131.2 | 152.9 | 172.4 | 1.7944 |
| 25 | 169.4 | 19/3.37 | 16.85 | 1339.1 | 218.6 | 201.6 | 238.9 | 262.6 | 1.1484 |
| 40 | 271.1 | 19/4.26 | 21.31 | 2141.6 | 349.7 | 322.6 | 374.1 | 412.1 | 0.7177 |
| 40 | 271.1 | 37/3.05 | 21.38 | 2148.1 | 349.7 | 322.6 | 382.3 | 420.2 | 0.7196 |
| 63 | 427.0 | 37/3.83 | 26.83 | 3383.2 | 550.8 | 508.1 | 589.3 | 649.0 | 0.4569 |
| Nominal Dia. of Strand in.[mm] |
No. of Wires in Strand | Nominal Dia. of Coated Wires in Strand in.[mm] | Approximate Weight of Strand lb/1000ft[kg/km] |
Minimum Breaking Strength of Strand,lbf[KN] | |||||||||||||||
| Common Grade | Siemens-Martin Grade | High-Strength Grade | Extra High-Strength Grade | ||||||||||||||||
| 1/8 | 3.18 | 7 | 0.041 | 1.04 | 32 | 48 | 540 | 2.402 | 910 | 4.048 | 1 | 330 | 5.916 | 1 | 830 | 8.14 | |||
| 5/32 | 3.97 | 7 | 0.052 | 1.32 | 51 | 76 | 870 | 3.87 | 1 | 470 | 6.539 | 2 | 140 | 9.519 | 2 | 940 | 13.078 | ||
| 3/16 | 4.76 | 7 | 0.062 | 1.57 | 73 | 109 | 1 | 150 | 5.115 | 1 | 900 | 8.452 | 2 | 850 | 12.677 | 3 | 990 | 17.748 | |
| 3/16 | 4.76 | 7 | 0.065 | 1.65 | 80 | 119 | |||||||||||||
| 7/32 | 5.56 | 3 | 0.104 | 2.64 | 88 | 131 | 1 | 400 | 6.228 | 2 | 340 | 10.409 | 3 | 500 | 15.569 | 4 | 900 | 21.796 | |
| 7/32 | 5.56 | 7 | 0.072 | 1.83 | 98 | 146 | 1 | 540 | 6.85 | 2 | 560 | 11.387 | 3 | 850 | 17.126 | 5 | 400 | 24.02 | |
| 1/4 | 6.35 | 3 | 0.12 | 3.05 | 117 | 174 | 1 | 860 | 8.274 | 3 | 40 | 13.523 | 4 | 730 | 21.04 | 6 | 740 | 29.981 | |
| 1/4 | 6.35 | 3 | 0.12 | 3.05 | 117 | 174 | |||||||||||||
| 1/4 | 6.35 | 7 | 0.08 | 2.03 | 121 | 180 | 1 | 900 | 8.452 | 3 | 150 | 14.012 | 4 | 750 | 21.129 | 6 | 650 | 29.581 | |
| 9/32 | 7.14 | 3 | 0.13 | 3.3 | 137 | 204 | 2 | 80 | 9.252 | 3 | 380 | 15.035 | 5 | 260 | 23.398 | 7 | 500 | 33.362 | |
| 9/32 | 7.14 | 7 | 0.093 | 2.36 | 164 | 244 | 2 | 570 | 11.432 | 4 | 250 | 18.905 | 6 | 400 | 28.469 | 8 | 950 | 39.812 | |
| 5/16 | 7.94 | 3 | 0.145 | 3.68 | 171 | 255 | 2 | 490 | 11.076 | 4 | 90 | 18.193 | 6 | 350 | 28.246 | 9 | 100 | 40.479 | |
| 5/16 | 7.94 | 7 | 0.104 | 2.64 | 205 | 305 | 3 | 200 | 14.234 | 5 | 350 | 23.798 | 8 | 0 | 35.586 | 11 | 200 | 49.82 | |
| 5/16 | 7.94 | 7 | 1.109 | 2.77 | 225 | 335 | |||||||||||||
| 3/8 | 9.52 | 3 | 0.165 | 4.19 | 220 | 328 | 3 | 330 | 14.813 | 5 | 560 | 24.732 | 8 | 360 | 37.187 | 11 | 800 | 52.489 | |
| 3/8 | 9.52 | 7 | 0.12 | 3.05 | 273 | 407 | 4 | 250 | 18.905 | 6 | 950 | 30.915 | 10 | 800 | 48.04 | 15 | 400 | 68.503 | |
| 7/16 | 11.11 | 7 | 0.145 | 3.68 | 399 | 595 | 5 | 700 | 25.355 | 9 | 350 | 41.591 | 14 | 500 | 64.499 | 20 | 800 | 92.523 | |
| 1/2 | 12.7 | 7 | 0.165 | 4.19 | 517 | 770 | 7 | 400 | 32.917 | 12 | 100 | 53.823 | 18 | 800 | 83.627 | 26 | 900 | 119.657 | |
| 1/2 | 12.7 | 19 | 0.1 | 2.54 | 504 | 751 | 7 | 620 | 33.895 | 12 | 700 | 56.492 | 19 | 100 | 84.961 | 26 | 700 | 118.768 | |
| 9/16 | 14.29 | 7 | 0.188 | 4.78 | 671 | 1000 | 9 | 600 | 42.703 | 15 | 700 | 69.837 | 24 | 500 | 108.981 | 35 | 0 | 155.688 | |
| 9/16 | 14.29 | 19 | 0.113 | 2.87 | 637 | 949 | 9 | 640 | 42.881 | 16 | 100 | 71.616 | 24 | 100 | 107.202 | 33 | 700 | 14.905 | |
| 5/8 | 15.88 | 7 | 0.207 | 5.26 | 813 | 1211 | 11 | 600 | 51.599 | 19 | 100 | 84.961 | 29 | 600 | 131.667 | 42 | 400 | 188.605 | |
| 5/8 | 15.88 | 19 | 0.125 | 3.18 | 796 | 1186 | 11 | 0 | 48.93 | 18 | 100 | 80.513 | 28 | 100 | 124.995 | 40 | 200 | 178.819 | |
| 3/4 | 19.05 | 19 | 0.15 | 3.81 | 1 | 155 | 1721 | 16 | 0 | 71.172 | 26 | 200 | 116.543 | 40 | 800 | 181.487 | 58 | 300 | 259.331 |
| 7/8 | 22.22 | 19 | 0.177 | 4.5 | 1 | 581 | 2356 | 21 | 900 | 97.416 | 35 | 900 | 159.691 | 55 | 800 | 248.211 | 79 | 700 | 354.523 |
| 1 | 25.4 | 19 | 0.2 | 5.08 | 2 | 73 | 3089 | 28 | 700 | 127.664 | 47 | 0 | 209.066 | 73 | 200 | 325.61 | 104 | 500 | 464.839 |
| 1 | 25.4 | 37 | 0.143 | 3.63 | 2 | 57 | 3065 | 28 | 300 | 125.885 | 46 | 200 | 205.508 | 71 | 900 | 319.827 | 102 | 700 | 456.832 |
| 11/8 | 28.58 | 37 | 0.161 | 4.09 | 2 | 691 | 4010 | 36 | 0 | 160.136 | 58 | 900 | 262 | 91 | 600 | 407.457 | 130 | 800 | 581.827 |
| 11/4 | 31.75 | 37 | 0.179 | 4.55 | 3 | 248 | 4840 | 44 | 600 | 198.391 | 73 | 0 | 324.72 | 113 | 600 | 505.318 | 162 | 200 | 721.502 |
| No/Dia of Wire | Approx. Overall Diameter | Minimum Breaking Strength of Strand | Approx. Weight | ||||||
| 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 |
| 3/1 80 | 3.90 | 2.7 | 3.7 | 60.0 | |||||
| 3/2 65 | 5.70 | 5.8 | 8.0 | 130.0 | |||||
| 3/3 25 | 7.00 | 8.7 | 12.0 | 195.0 | |||||
| 3/4 00 | 8.60 | 13.2 | 18.1 | 295.0 | |||||
| 4/1 80 | 4.40 | 3.6 | 4.9 | 80.0 | |||||
| 4/2 65 | 6.40 | 7.7 | 10.6 | 172.0 | |||||
| 4/3 25 | 7.90 | 11.6 | 15.9 | 260.0 | |||||
| 4/4 00 | 9.70 | 17.6 | 24.1 | 35.2 | 390.0 | ||||
| 5/1 50 | 4.10 | 3.1 | 4.2 | 6.2 | 69.0 | ||||
| 5/1 80 | 4.90 | 4.5 | 6.1 | 8.9 | 95.0 | ||||
| 5/2 65 | 7.20 | 9.7 | 13.3 | 19.3 | 220.0 | ||||
| 5/3 25 | 8.80 | 14.5 | 19.9 | 29.0 | 320.0 | ||||
| 5/4 00 | 10.80 | 22.0 | 30.2 | 44.0 | 490.0 | ||||
| 7/0 56 | 1.70 | 0.6 | 0.8 | 1.2 | 1.7 | 2.0 | 2.2 | 14.0 | |
| 7/0 71 | 2.10 | 1.0 | 1.3 | 1.9 | 2.8 | 3.2 | 3.6 | 28.0 | |
| 7/0 85 | 2.60 | 1.4 | 1.9 | 2.8 | 4.0 | 4.6 | 5.2 | 31.0 | |
| 7/0 90 | 2.70 | 1.6 | 2.1 | 3.1 | 4.5 | 5.1 | 5.8 | 35.0 | |
| 7/1 00 | 3.00 | 1.9 | 2.6 | 3.9 | 5.5 | 6.3 | 7.2 | 43.0 | |
| 7/1 25 | 3.80 | 3.0 | 4.1 | 6.0 | 8.6 | 9.9 | 11.2 | 67.0 | |
| 7/1 40 | 4.20 | 3.8 | 5.2 | 7.5 | 9.2 | 10.8 | 12.4 | 14.0 | 84.0 |
| 7/RS* | 4.30 | 3.9 | 5.3 | 7.7 | 9.4 | 11.0 | 12.7 | 14.3 | 86.0 |
Quality Control
Galvanized Steel Conductor
Raw Material Test
For the Galvanized Steel Conductor Cable Guard Wire, raw material testing starts with steel rod certification. Rods are sampled for microstructure analysis, hardness, and decarburization depth. Chemical elements are verified against specifications using optical emission spectroscopy. Mechanical tests include yield strength, tensile strength, and bend tests. Galvanizing flux and zinc are checked for impurities. The wire rod surface is inspected for cracks via magnetic particle testing. The step-by-step process: receipt documentation review, sampling protocol, physical/mechanical testing, chemical composition confirmation, surface defect evaluation, and material approval stamp. This comprehensive evaluation secures premium inputs, establishing the base for the Galvanized Steel Conductor Cable Guard Wire's superior strength and galvanizing performance.
Process inspection
Process inspection in Galvanized Steel Conductor Cable Guard Wire manufacturing involves real-time quality checks. Individual wire drawing stages monitor reduction ratio and ovality with laser micrometers. Stranding line inspects pre-former operation, tension balance, and strand compaction. Galvanizing process controls line speed, bath composition, and cooling rate for optimal coating adhesion. In-process coating thickness sampling uses Elcometer gauges. Mandrel wrap tests on drawn wires verify ductility. Defect marking and removal occur immediately. Critical steps: material feed verification, drawing die wear check, stranding parameter logging, galvanizing immersion timing, post-process adhesion sampling, and reel inspection. This ensures the Galvanized Steel Conductor Cable Guard Wire maintains precise dimensions, uniform coating, and structural integrity.
Finished Product
Completed Galvanized Steel Conductor Cable Guard Wire is rigorously tested before shipment. Key routines: ultimate tensile strength test with recorded load-elongation curve, zinc coating uniformity and mass determination, and diameter tolerance measurement across strands. Adhesion is tested by wrapping around a mandrel without flaking. Corrosion resistance via accelerated tests, if required. The detailed process: reel sampling, test length preparation, machine setup and calibration, progressive loading to break, coating stripping and weighing, visual/post-failure analysis, and documentation. Additional verifications include weight per kilometer and packaging. Passing all ensures the Galvanized Steel Conductor Cable Guard Wire delivers specified mechanical properties, durable galvanization, and safe overhead guarding performance.
Application
Ideal for protecting overhead transmission and distribution conductors from mechanical damage. Commonly applied on utility poles, towers, and crossings in forests, highways, and urban areas to prevent outages caused by external impacts.
Technical Advantages
● 30+ years of manufacturing experience
● ISO and UL certified production
● Customized cable and transformer solutions
Product Packaging
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