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LCIE Rubber Covered Copper Wire

For demanding electrical applications requiring superior flexibility, durability, and reliable insulation, LCIE Rubber Covered Copper Wire represents the industry benchmark. This high-grade electrical cable is engineered with a pure, high-conductivity copper core, meticulously insulated with a premium-grade rubber compound. This specific construction offers exceptional resistance to abrasion, moisture, ozone, and a wide range of environmental stressors, making it an indispensable solution for industrial machinery, power tools, heavy-duty appliances, and complex wiring harnesses. The inherent flexibility of the rubber sheathing allows for easy installation in tight spaces and applications involving frequent movement or vibration. Professionals seeking a robust and versatile wiring solution often specify products like LCIE Rubber Insulated Copper Wire for fixed installations, while LCIE Flexible Copper Core Cable is the preferred choice for dynamic, flexing applications. Similarly, LCIE Rubber Sheathed Flexible Wire provides an added layer of mechanical protection, and the core technology is encapsulated in our comprehensive LCIE Copper Conductor Rubber Cable range, designed to meet rigorous international electrical standards.


The performance of LCIE Rubber Covered Copper Wire is defined by its precise technical specifications and material science. The selection of the rubber compound is critical; it is typically a blend of synthetic polymers like Ethylene Propylene Diene Monomer (EPDM) or Chloroprene (Neoprene), chosen for their specific dielectric strength, thermal stability, and chemical resistance. This ensures the insulation remains stable and protective across a wide temperature range, often from -40°C to +90°C or higher, depending on the grade. The copper conductor itself is annealed to enhance its ductility, allowing it to withstand repeated bending without work-hardening and breaking. Key parameters that define this product category include nominal cross-sectional area, conductor stranding, insulation thickness, voltage rating, and overall outer diameter. These are detailed in the following specifications and comparison table.

Core Technical Specifications

  • Conductor Material: High-purity, annealed electrolytic copper (Cu-ETP).
  • Insulation Material: Premium-grade rubber (EPDM, Neoprene, or SBR blends).
  • Temperature Range: Operational flexibility from -40°C to +90°C (standard grade).
  • Voltage Rating: Commonly rated for 450/750V or 600/1000V applications.
  • Standards Compliance: Manufactured to meet or exceed IEC 60245, BS 6500, and other relevant national standards.
  • Key Properties: Excellent flexibility, high abrasion and tear resistance, good oil and chemical resistance, flame retardancy (depending on compound).

Typical Product Data Table

Nominal Cross-Sectional Area (mm²) Number of Strands / Diameter (mm) Approx. Insulation Thickness (mm) Approx. Overall Diameter (mm) Approx. Conductor Resistance at 20°C (Ω/km)
1.5 30 / 0.25 0.8 4.3 12.1
2.5 50 / 0.25 0.9 5.2 7.41
4.0 56 / 0.30 1.0 6.3 4.61
6.0 84 / 0.30 1.0 7.2 3.08
10.0 80 / 0.40 1.2 9.5 1.83

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