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Enameled Copper(Aluminum) Flat Wire

Enameled Copper(Aluminum) Flat Wire
High-Temperature Resistant Enameled Flat Copper/Aluminum Wire

High-Temperature Resistant Enameled Flat Copper/Aluminum Wire
Customizable Enameled Flat Wire for Electrical Equipment Windings

Customizable Enameled Flat Wire for Electrical Equipment Windings
Eco-Friendly Enameled Copper/Aluminum Flat Wire for Power Equipment

Eco-Friendly Enameled Copper/Aluminum Flat Wire for Power Equipment
Transformer-Specific Enameled Flat Copper/Aluminum Wire

Transformer-Specific Enameled Flat Copper/Aluminum Wire
Solvent & Corrosion Resistant Enameled Flat Wire

Solvent & Corrosion Resistant Enameled Flat Wire
High Mechanical Strength Enameled Flat Copper/Aluminum Wire

High Mechanical Strength Enameled Flat Copper/Aluminum Wire
Self-Adhesive Enameled Flat Copper/Aluminum Wire

Self-Adhesive Enameled Flat Copper/Aluminum Wire
High-temperature Resistant Nomex Paper Insulated Wire

High-temperature Resistant Nomex Paper Insulated Wire
Refrigerant Resistance Oil-Immersed Transformers Copper Paper Covered Flat Wire

Refrigerant Resistance Oil-Immersed Transformers Copper Paper Covered Flat Wire
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PAPER COVER COPPER STRANDED WIRE (1).jpg
PAPER COVER COPPER STRANDED WIRE (2).jpg

High-Reliability Copper Stranded Wire for Transformers - China Suppliers & Factory Solutions for Internal Connections

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Discover our innovative flexible conductive solutions tailored for internal transformer connections, ensuring stable and efficient power transmission. As a leading supplier in China, our products are designed to meet the specific needs of transformer manufacturers globally.

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At the core of each transformer, critical lifelines carry powerful currents and connect essential components such as windings, bushings, and switches. Our copper stranded wire is specifically engineered for these applications, offering unmatched conductivity, flexibility, and durability. Trust our factory to deliver top-quality internal lead solutions that enhance the performance and longevity of transformers.

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    Product Details

    Core Advantages

    Extreme Conductivity, High Efficiency and Energy Saving

    Utilizing over 99.95% high-purity oxygen-free copper, with a conductivity exceeding 100% IACS, effectively reducing internal transformer losses and improving overall energy efficiency.

    Superior Flexibility, Worry-Free Installation

    The multi-strand precision twisted structure gives it excellent flexibility and fatigue resistance, easily handling the challenges of wiring within complex enclosures, significantly improving installation efficiency and reliability.

    Reliable, Stable, and Long-Lasting

    (Optional tin plating process) Excellent oxidation and corrosion resistance, able to withstand thermal expansion and contraction and electrodynamic shocks during operation, ensuring long-term safe and stable operation of the transformer.

    Full Range of Specifications, Customization Available

    We offer a full range of standard specifications from 10mm² to over 3000mm², and support custom-made special models with special cross-sections, tin plating, paper insulation, etc., to meet your personalized design needs.

    Product Series Overview

    Standard Copper Stranded Wire
    Description: The most versatile choice, offering high cost-effectiveness and stable performance.
    Applications: Main leads for various oil-immersed and dry-type transformers.
    Paper-Insulated Copper Stranded Wire
    Description: Covered with transformer insulating paper, forming integrated turn insulation.
    Applications: Winding leads and other parts with specially designed insulation distances.

    Technical Commitment

    • Strict Standards: Production complies with domestic and international standards such as GB/T 12970 and IEC, and can also meet customer enterprise standards.
    • Precise Control: 100% testing is performed on key parameters such as DC resistance, cross-sectional area, and strand pitch.
    • Professional Support: Our technical team can provide you with selection guidance and application solutions.

    Call to Action

    Infuse your next-generation transformers with a more reliable energy path. Contact us today for customized product brochures and technical consultation.

    Frequently Asked Questions

    Q What purity level of copper is used in your stranded wire, and why does it matter?
    Our stranded wire is manufactured using over 99.95% high-purity oxygen-free copper. This level of purity ensures a conductivity exceeding 100% IACS, which directly reduces resistive losses inside the transformer, lowers operating temperatures, and improves overall energy efficiency — a critical requirement for modern high-performance transformer designs.
    Q What cross-sectional sizes are available, and can you produce custom specifications?
    We offer a complete standard range from 10mm² to over 3000mm² to cover the vast majority of transformer applications. In addition, we fully support custom orders for special cross-sections, tin-plated surfaces, paper insulation wrapping, and other non-standard configurations to meet your specific engineering or design requirements.
    Q What is the difference between Standard Copper Stranded Wire and Paper-Insulated Copper Stranded Wire?
    Standard Copper Stranded Wire is the most versatile and cost-effective option, suitable as the main leads for both oil-immersed and dry-type transformers. Paper-Insulated Copper Stranded Wire features an additional layer of transformer insulating paper, which integrates turn-level insulation directly onto the conductor — making it ideal for winding leads and components where precise, custom insulation distances are required.
    Q What quality standards and testing procedures does your production follow?
    Our production strictly complies with GB/T 12970, IEC international standards, and customer-specific enterprise standards where applicable. Every batch undergoes 100% testing on key parameters including DC resistance, cross-sectional area, and strand pitch, ensuring consistent quality and full traceability for each delivery.
    Q Is tin plating available, and what benefits does it provide?
    Yes, tin plating is available as an optional process. It significantly enhances the wire's resistance to oxidation and corrosion, which is especially valuable in humid or chemically active environments. Tin-plated conductors also better withstand the repeated thermal expansion and contraction and electrodynamic forces that occur during transformer operation, contributing to a longer service life.
    Q Can your technical team assist with product selection and application design?
    Absolutely. Our professional technical team is available to provide comprehensive selection guidance based on your transformer type, rated power, operating environment, and insulation requirements. We can also offer tailored application solutions and supply customized product brochures. Please contact us directly to discuss your specific project needs.

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