High-Temperature Resistant Enameled Flat Copper/Aluminum Wire
Product Information
This enameled flat wire takes high-quality oxygen-free copper or electrical aluminum rod as raw materials, which are strictly processed through drawing and extrusion by specification-specific molds to ensure uniform conductor structure. Its primary application lies in the windings of electrical equipment that demand stable operation at elevated temperatures, including heavy-duty transformers, high-frequency reactors, and industrial inverters. Based on the insulation paint formulation, it is categorized into six core types to match different thermal requirements:
● 120℃ Polyvinyl Acetal/Self-adhesive Polyvinyl Acetal Enameled Flat Wire (QQ/QQN)
● 130℃ Polyester Enameled Flat Wire (QZ)
● 155℃ Modified Polyester Enameled Flat Wire (QZG)
● 180℃ Polyester Imide Enameled Flat Wire (QZY)
● 200℃ Polyester Imide/Polyamide-Imide Composite Enameled Flat Wire (Q(ZY/XY))
● 220℃ Polyamide Imide Enameled Flat Wire (QXY)
Production Scope
Conductor thickness--a:0.80-5.60mm
Conductor width--b:2.00-16.00mm
Maximum conductor width ratio: 20:1
Conductor Material Performance
Soft copper flat wire adheres to GB5584.2-2009, with resistivity ≤0.017241Ω.mm²/m at 20℃, available in three mechanical strength grades (C1/C2/C3).
Soft aluminum flat wire complies with GB5584.3-2009, with resistivity ≤0.02801Ω.mm²/m at 20℃, ensuring efficient electrical conductivity.
Detail Shot

Insulation & Thermal Performance
Insulation thickness options include thin film (0.06-0.11mm) and thick film (0.12-0.17mm), while self-adhesive layers range from 0.03-0.06mm, all monitored by professional dielectric loss meters. Key thermal performance highlights:
● QZY (180℃) offers exceptional heat resistance and heat shock resistance, suitable for high-temperature industrial equipment.
● Q(ZY/XY) (200℃) combines refrigerant and radiation resistance, ideal for harsh operating environments.
● QXY (220℃) boasts superior chemical solvent resistance, maintaining stability in extreme conditions.
All products meet GB/T 7095 series and IEC 60317 standards, with breakdown voltage values reaching 1000V (Grade 1) and 2000V (Grade 2) at room temperature. As an ISO9001:2015 certified supplier, Hengte Electric’s products have passed SGS, UL, and CE tests, ensuring quality compliance. Customization is available based on customer-provided technical specifications.








