-
Application
- Aerospace & Aviation
- Low-Voltage Electrical (Electric Brush Wires）
- Chemical & Metallurgical Engineering Equipment
- Industrial Machinery & Equipment Clusters
- Superconducting Technology Applications
- Rail Transit Equipment
- Smart Grid & Power Transmission/Distribution Applications
- New Energy Wind Power
- Power Storage Equipment
- New Energy Vehicle Systems
- Products
Flexible Copper Stranded Wires from China Suppliers - High-Quality Factory-Produced Electrical Conduction Solutions
Technical Data
Annealed Cu-ETP wires, C11000, copper content ≥ 99.95%
Bare, tin plating
1.5mm² - 2000mm²
In rolls, on spools or wooden drums
Product Display
Type And Specification
| Type | Single Wire Diameter (mm) | Single Wire Diameter (AWG) |
|---|---|---|
| BGTJR 1 | 0.25mm-1.05mm | AWG30-AWG18 |
| BGTJR(X) 2 | 0.20mm | AWG32 |
| BGTJR(X) 3 | 0.15mm | - |
Model And Meaning
Customization Specifications
| Part No. | Nominal Cross Section (mm²) | Calculating Cross Section (mm²) | Structure | Calculating Outside diameter (mm) | Max. DC Resistance at 20℃ (Ω/km) | Calculating weight (kg/km) | ||
|---|---|---|---|---|---|---|---|---|
| Total Wire Number | Strands×Wire Number Per Strand / Single Wire Diameter (mm) | BGTJR 3 | BGTJRX 3 | |||||
| BGTJR(X) 3-1.5 | 1.5 | 1.48 | 84 | 3×28/0.15 | 1.1 | 11.5 | 11.7 | 13.6 |
| BGTJR(X) 3-2 | 2 | 2.01 | 114 | 3×38/0.15 | 1.9 | 9.24 | 9.39 | 18.7 |
| BGTJR(X) 3-2.5 | 2.5 | 2.54 | 144 | 3×48/0.15 | 2.2 | 7.40 | 7.73 | 23.4 |
| BGTJR(X) 3-4 | 4 | 4.02 | 228 | 4×57/0.15 | 2.8 | 4.62 | 4.82 | 37.4 |
| BGTJR(X) 3-5 | 5 | 5.03 | 285 | 5×57/0.15 | 3.0 | 3.69 | 3.86 | 46.3 |
| BGTJR(X) 3-6 | 6 | 6.05 | 343 | 7×49/0.15 | 3.5 | 2.97 | 3.10 | 55.6 |
| BGTJR(X) 3-8 | 8 | 8.03 | 455 | 7×65/0.15 | 4.0 | 2.33 | 2.44 | 74.0 |
| BGTJR(X) 3-10 | 10 | 10.01 | 567 | 7×81/0.15 | 4.6 | 1.85 | 1.93 | 92.1 |
| BGTJR(X) 3-12 | 12 | 11.98 | 679 | 7×97/0.15 | 5.0 | 1.48 | 1.55 | 111.0 |
| BGTJR(X) 3-16 | 16 | 15.94 | 903 | 7×3×43/0.15 | 6.0 | 1.16 | 1.21 | 151.0 |
| BGTJR(X) 3-20 | 20 | 20.02 | 1134 | 7×3×54/0.15 | 6.8 | 0.925 | 0.965 | 191.5 |
| BGTJR(X) 3-25 | 25 | 25.21 | 1428 | 7×3×68/0.15 | 7.7 | 0.736 | 0.769 | 242.5 |
| BGTJR(X) 3-35 | 35 | 34.85 | 1974 | 7×3×94/0.15 | 9.0 | 0.535 | 0.559 | 335.9 |
| BGTJR(X) 3-50 | 50 | 49.57 | 2888 | 12×3×78/0.15 | 11.0 | 0.374 | 0.391 | 483.1 |
| BGTJR(X) 3-70 | 70 | 69.46 | 3933 | 19×3×69/0.15 | 13.2 | 0.262 | 0.274 | 678.4 |
| BGTJR(X) 3-95 | 95 | 94.59 | 5358 | 19×3×94/0.15 | 15.5 | 0.196 | 0.205 | 934.4 |
| BGTJR(X) 3-100 | 100 | 99.57 | 5640 | 20×3×94/0.15 | 15.8 | 0.183 | 0.191 | 979.9 |
| BGTJR(X) 3-120 | 120 | 120.76 | 6840 | 19×4×90/0.15 | 16.8 | 0.153 | 0.160 | 1178.8 |
| BGTJR(X) 3-150 | 150 | 150.15 | 8550 | 19×5×90/0.15 | 18.5 | 0.124 | 0.130 | 1449.3 |
| BGTJR(X) 3-185 | 185 | 185.10 | 10488 | 18×7×81+3×94/0.15 | 21.5 | 0.0997 | 0.1040 | 1801.1 |
| BGTJR(X) 3-200 | 200 | 200.20 | 11340 | 20×7×81/0.15 | 22.5 | 0.0940 | 0.0982 | 1945.4 |
| BGTJR(X) 3-250 | 250 | 249.70 | 14147 | 20×7×97+7×81/0.15 | 25.0 | 0.0735 | 0.0768 | 2426.9 |
| BGTJR(X) 3-315 | 315 | 310.41 | 17575 | 37×19×25/0.15 | 31.0 | 0.0592 | 0.0619 | 2897.6 |
| BGTJR(X) 3-400 | 400 | 397.33 | 22496 | 37×19×32/0.15 | 34.0 | 0.0470 | 0.0491 | 3708.9 |
| BGTJR(X) 3-500 | 500 | 496.66 | 28120 | 37×19×40/0.15 | 38.0 | 0.0366 | 0.0382 | 4636.1 |
Advantages
Flexible multi-strand structure reduces self-vibration and impact during momentary energization; connections stay tight.
Annealed Cu-ETP (≥99.95%) minimizes skin effect losses and ensures fast response.
Withstands repeated bending without fatigue failure.
Smaller bending radius than copper bars for the same cross-section, enabling flexible installation.
Flexible design eliminates cumulative tolerances, easy routing in irregular or cramped areas.
Avoids localized temperature rise caused by molecular lattice damage when cold-bending copper bars.
Operating & Maintenance
Temperature range: –40°C to +200°C (tin-plated)
Service life: 10-15 years under normal dry indoor conditions.
Inspection: Bare copper in humid environments-inspect every 6-12 months; tin-plated version requires minimal care.
Check terminal tightness annually in high-vibration applications.
Compliant with GB/T12970.2-2009, cross-sectional area 1.5-2000 mm².
Packing: rolls, spools or wooden drums.
Applications
Used for flexible conduction and grounding connections in electrical installations, switchgear, electric furnaces, storage batteries, etc. Widely applied in new energy “solar-storage-charging”, new energy vehicle drives, wind power generation, and more.
After-Sales
Free technical support, custom orders, 24-hour response. Contact Zhejiang Bridgold Copper Tech Co., Ltd.
Customization Upon Request
Zhejiang Bridgold Copper Tech Co., Ltd. is a professional leader China copper braid flat, copper braid wire, copper braid wire flat, copper braided wire, copper earth braid manufacturers and suppliers with high quality and low price. Welcome to contact us.
Frequently Asked Questions (FAQ)
We use annealed Cu-ETP wires (C11000) with a guaranteed copper content of ≥ 99.95%, offering optimal conductivity and flexibility.
Products are available in both bare copper and tin-plated copper finishes to accommodate different environmental and anti-oxidation requirements.
The tin-plated flexible copper stranded wires are designed to operate reliably within a temperature range of –40°C to +200°C.
Yes, we provide customization from 1.5mm² up to 2000mm² with single wire diameters from 0.15mm to 1.05mm according to client requirements.
Bare copper in humid environments should be inspected every 6-12 months. In high-vibration applications, terminal tightness should be checked annually.
We supply products packed securely in rolls, on spools, or wound on wooden drums based on size and handling preferences.