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China Suppliers Factory Insulated Flexible Copper Stranded Wires for Electrical Conduction and Grounding Connections
Technical Data
Material: annealed Cu-ETP wires, C11000, copper content ≥ 99.95%
Finish: bare, tin plating
PVC Insulation Color: transparent, green, yellow, blue, and red. Other special color on request.
Cross Sectional Area: 2.5mm² - 120mm²
Packing Modes: in rolls, on spools or wooden drums
Single Wire Diameter:
0.05mm (AWG 44)
0.07mm (AWG 41)
0.10mm (AWG 38)
0.12mm
0.127mm (AWG 36)
0.15mm (standard)
0.20mm (AWG 32)
0.25mm
0.254mm (AWG 30)
...
Product Display
Model And Meaning
Advantages
Effective vibration damping:
Flexible multi-strand structure reduces self-vibration and impact during momentary energization; connections stay tight.
Efficient current conduction:
Annealed Cu-ETP (≥99.95%) minimizes skin effect losses and ensures fast response.
Suitable for complex bending motion:
Withstands repeated bending without fatigue failure.
Large bending radius yet compact structure:
Smaller bending radius than copper bars for the same cross-section, enabling flexible installation.
Installation in confined spaces:
Flexible design eliminates cumulative tolerances, easy routing in irregular or cramped areas.
Balanced heat dissipation:
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.
Maintenance & Compliance:
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 bare stranded copper wire, braided copper wire rope, round tinned copper braid, Flexible Copper Stranded Wires, stranded copper wire manufacturers and suppliers with high quality and low price. Welcome to contact us.
Frequently Asked Questions
What is the copper purity of these stranded wires?
The wires are manufactured using high-grade annealed Cu-ETP (C11000) with a guaranteed copper content of ≥ 99.95%, ensuring exceptional electrical conductivity and minimal skin effect losses.
What is the operational temperature range?
For the tin-plated version, the operating temperature range is –40°C to +200°C, making it suitable for both extreme cold and high-heat industrial environments.
What insulation colors and single wire sizes are available?
Standard insulation colors include transparent, green, yellow, blue, and red, with custom colors on request. Single wire diameters range from 0.05mm (AWG 44) up to 0.254mm (AWG 30), with 0.15mm as the standard.
What maintenance is required for long-term service?
Under standard dry indoor conditions, the service life is 10-15 years. Bare copper in humid environments should be inspected every 6-12 months, and terminal tightness should be checked annually in high-vibration applications.
What are the main application fields for flexible copper stranded wires?
They are extensively applied in electrical switchgear, electric furnaces, battery connections, new energy vehicle drives, solar-storage-charging systems, and wind power generation.
Can I order custom sizes, finishes, and packaging?
Yes, Zhejiang Bridgold Copper Tech Co., Ltd. provides customized manufacturing for various cross-sectional areas (1.5-2000 mm²), bare or tin finishes, and packaging in rolls, spools, or wooden drums.