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Customizable Enameled Flat Wire from China Suppliers - Factory Direct for Electrical Equipment Windings
Product Information
Designed for versatility, this enameled flat wire is fabricated from high-purity oxygen-free copper or electrical aluminum rod, processed by drawing and extrusion with molds tailored to specific dimensions. It is widely used in the windings of various electrical equipment, including power transformers, distribution reactors, and electronic inverters, providing reliable insulation and conductive performance. Based on the type of insulating paint, it is divided into six categories to cover different application scenarios:
- ●QQ / QQN — 120℃ Polyvinyl Acetal / Self-adhesive Polyvinyl Acetal Enameled Flat Wire
- ●QZ — 130℃ Polyester Enameled Flat Wire
- ●QZG — 155℃ Modified Polyester Enameled Flat Wire
- ●QZY — 180℃ Polyester Imide Enameled Flat Wire
- ●Q(ZY/XY) — 200℃ Polyester Imide / Polyamide-Imide Composite Enameled Flat Wire
- ●QXY — 220℃ Polyamide Imide Enameled Flat Wire
Flexible Production Specifications
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Conductor Thickness (a)
0.80 – 5.60 mm (adjustable to customer needs)
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Conductor Width (b)
2.00 – 16.00 mm (supports custom width ratios)
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Insulation Thickness
Thin film: 0.06 – 0.11 mm | Thick film: 0.12 – 0.17 mm
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Self-adhesive Layer (QQ/QQN)
0.03 – 0.06 mm
Detail Shot
Material & Performance Assurance
- Copper conductors meet GB5584.2-2009 standards, ensuring low resistivity (≤0.017241 Ω·mm²/m at 20℃) and excellent conductivity.
- Aluminum conductors comply with GB5584.3-2009, with resistivity ≤0.02801 Ω·mm²/m at 20℃, balancing cost and performance.
- Each insulation category adheres to international standards (GB/T 7095 series, IEC 60317) and passes strict tests (GB/T 4074, IEC 60851) for breakdown voltage, scratch resistance, and solvent resistance.
- Hengte Electric, an ISO9001:2015 certified manufacturer, offers full customization based on customer technical drawings or specifications. All products have obtained SGS, UL, and CE certifications, guaranteeing quality and compliance. Whether you need specific thermal grades, conductor dimensions, or insulation properties, we can tailor the product to your exact requirements.
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Frequently Asked Questions
1
What conductor materials are available for the enameled flat wire?
The enameled flat wire is available in two conductor materials: high-purity oxygen-free copper and electrical-grade aluminum rod. Copper conductors offer lower resistivity and superior conductivity, while aluminum conductors provide a cost-effective alternative with balanced performance.
2
What are the available thermal class grades for the insulation?
Six insulation categories are available to suit different operating temperatures: 120℃ (QQ/QQN), 130℃ (QZ), 155℃ (QZG), 180℃ (QZY), 200℃ (Q(ZY/XY)), and 220℃ (QXY). Each grade is designed for specific application environments and thermal requirements.
3
Can the conductor dimensions be customized to specific requirements?
Yes. The conductor thickness (a) can range from 0.80 mm to 5.60 mm and the conductor width (b) from 2.00 mm to 16.00 mm. Custom width ratios and insulation thicknesses (thin or thick film) are also supported. Orders can be tailored based on customer-supplied technical drawings or specifications.
4
What certifications does Hengte Electric hold for these products?
Hengte Electric is an ISO9001:2015 certified manufacturer. All enameled flat wire products have obtained SGS, UL, and CE certifications, ensuring compliance with international quality and safety standards. Products also conform to GB/T 7095 series and IEC 60317 insulation standards.
5
What applications are enameled flat wires commonly used in?
Enameled flat wires are widely used in the windings of various electrical equipment, including power transformers, distribution reactors, and electronic inverters. Their flat profile enables higher slot fill factors and improved thermal dissipation compared to round wires, making them ideal for high-efficiency electrical devices.
6
What quality tests are performed on the enameled flat wire before delivery?
Each product undergoes rigorous testing in accordance with GB/T 4074 and IEC 60851 standards. Tests include breakdown voltage resistance, scratch resistance, solvent resistance, and thermal endurance verification. These tests ensure consistent insulation integrity and reliable performance throughout the product's service life.