Round Stranded Copper Flexibles
Yeshwant Wires is a leading Round Stranded Copper Flexibles manufacturer in India, offering premium-quality copper conductors that combine flexibility, high electrical conductivity, and durability. Our stranded copper flexibles are made from multiple fine copper strands twisted together into a round configuration, providing excellent mechanical strength and superior current-carrying capacity. Manufactured from 99.99% electrolytic-grade copper, they ensure optimal electrical performance.
Available in bare, tinned, or silver-plated finishes with custom diameters and strand counts, these flexibles deliver exceptional conductivity, flexibility, corrosion resistance, and durability. They comply with IS 8130, IEC 60228, and ASTM B3 standards and are ideal for switchgear, transformers, power panels, battery connections, grounding systems, and industrial machinery.
Description
Round Stranded Copper Flexibles are flexible conductors made by twisting multiple fine copper strands into a uniform round shape. This design allows the conductor to bend, twist, and move without breaking, making it ideal for applications where vibration, movement, or frequent adjustments occur. The multi-strand construction reduces the skin effect at high currents and enhances flexibility, making it easier to install in tight spaces or dynamic environments.
These flexibles are extensively used in power distribution systems, busbars, transformers, welding equipment, industrial machinery, battery connections, and grounding or earthing systems where flexible, reliable electrical connections are paramount for operational excellence and safety in both industrial and power distribution applications.
Key Features & Advantages
- High Electrical Conductivity: Made from 99.99% electrolytic-grade copper for minimal power loss.
- Superior Flexibility: Multi-strand design allows bending, twisting, and easy installation.
- Durable & Reliable: Resists mechanical stress, vibration, and thermal expansion.
- Corrosion Resistant: Available in bare, tinned, or silver-plated finishes for long life.
- Custom Sizes: Multiple diameters, strand counts, and lengths available to suit diverse applications.
- High Current Carrying Capacity: Ideal for industrial, electrical, and power transmission systems.
Technical Specifications
| Property | Specification | Significance |
|---|---|---|
| Conductor Material | High-Purity Electrolytic Copper (Cu-ETP), typically Bare or Tinned for corrosion resistance. | Copper provides optimal electrical conductivity for power transfer. Tinned copper is often specified for marine, automotive, and outdoor use to maximize longevity and minimize resistance creep due to oxidation. |
| Conductor Construction | Multiple bundles of very fine strands (e.g., 0.1 mm to 0.2 mm) twisted together (roped) into a round cable cross-section. | This structure achieves high flexibility and exceptional resistance to bending and vibration fatigue, making it suitable for dynamic or portable applications. |
| Flexibility Class | Meets IEC 60228 Class 5 (Flexible) or Class 6 (Very Flexible) requirements. | The high flexibility class confirms the conductor's suitability for applications requiring continuous or frequent movement, such as robot wiring, welding leads, and power tool cords. |
| Voltage Grade | Low Voltage (LV), typically 450/750 V or 600 V / 1000 V (1 kV). | The voltage rating is determined by the thickness and material of the insulation and ensures the cable is safe for most industrial and commercial power supply applications. |
| Insulation/Sheath | Durable compounds such as PVC, EPR (Ethylene Propylene Rubber), TPE (Thermoplastic Elastomer), or Neoprene/Rubber. | The insulation provides crucial dielectric isolation and must be resistant to abrasion, chemicals, oils, and sometimes extreme temperatures, depending on the application (e.g., Rubber for welding leads). |
| Operating Temperature | Ranges from -40°C to +90°C (for standard PVC) up to +105°C to +150°C (for EPR/Silicone), based on the jacket material. | The sheath material must be able to withstand both the ambient temperature and the heat generated internally by the current load without degradation. |
| Key Function | Portable Power Supply, Welding Leads, Battery Cables, and Flexible Interconnections for machinery. | Used wherever robust, reliable, high-current power must be delivered to a device that is frequently moved, such as a crane, robot, or industrial heater. |
| Standards | IEC 60228, VDE, UL, CSA, harmonized European standards (e.g., H07RN-F for rubber sheathed). | Compliance ensures the cable meets the safety, performance, and dimensional criteria required for its intended industrial or domestic environment. |
Applications
Round Stranded Copper Flexibles are widely used in switchgear and busbar connections, transformers, power distribution systems, welding machines, battery banks, industrial machinery, renewable energy installations, and grounding or earthing systems. Their flexibility and strength make them ideal for installations where frequent movement, vibration, or dynamic electrical connections are essential for reliable performance.
Manufacturing & Quality Assurance
At Yeshwant Wires, every round stranded copper flexible is produced using advanced stranding machines that ensure uniform strand distribution, consistent diameter, and optimal conductivity. Products undergo stringent testing for tensile strength, flexibility, electrical resistance, and surface finish quality under ISO certified quality systems.
Why Choose Yeshwant Wires?
- Leading Round Stranded Copper Flexibles Manufacturer in India.
- High-performance conductors with customizable diameters, strand counts, and finishes.
- ISO-certified production ensuring consistent quality and industry-standard compliance.
- Competitive prices with timely delivery across India and international markets.
- Trusted supplier for electrical, power, industrial, and renewable energy sectors.
Industries We Serve
We supply Round Stranded Copper Flexibles to diverse industries such as electrical, power generation, renewable energy, automotive, railways, industrial automation, and heavy machinery. Our solutions are tailored for high performance, safety, reliability, and compliance with international electrical standards.
