Enameled Copper Wire (PETV Type)
- P = Polyester Enamel: The insulation layer is made of high-purity polyester resin, the foundation of its insulation performance.
- E = Heat-Resistant: Emphasizes “heat-resistant” as a key feature (not a standard abbreviation, but a core functional label).
- TV = Thermosetting Varnish: The insulation layer adopts thermosetting technology—curing via high-temperature cross-linking to form a tough, non-melting film.
- Conductor: High-purity electrolytic copper (≥99.95% copper content) for low resistance and efficient electrical conductivity.
- Conductor diameter (0.03-3.00mm common range)
- Film thickness (-1/-2, specify based on winding density)
- Heat resistance class (130℃/155℃, match your equipment’s working temperature)
- Request test reports (dielectric strength, thermal shock, tensile strength)
- Confirm compliance with IEC 60317 or GB/T 6109 (even for custom-named products)
- For dense windings: Choose -2 thin film (reduces space occupation)
- For high-voltage equipment: Choose -1 thick film (enhanced insulation)
- For cold environments: Confirm 155℃ class (better low-temperature stability)
- Don’t mistake “PETV” for a special material (it’s polyester-based, same as PEW/QZ)
- Reject products with unclear parameters (e.g., no heat resistance class marked)
If you’re searching for “enameled copper wire (PETV type)” for electrical equipment manufacturing, this article will break down its definition, technical characteristics, applications, and industry equivalents—based on Polyester Enamel + Heat-Resistant + Thermosetting Varnish core attributes, with authoritative technical insights and practical selection advice.
What Exactly Is Enameled Copper Wire (PETV Type)?
PETV type enameled copper wire is a custom-branded electrical conductor widely used in global markets (China, Russia, Europe, etc.). Its name directly reflects its core composition:
Core Conclusion:
PETV type is not an IEC/GB/GOST standard term, but its performance is fully aligned with standard polyester enameled copper wire (international: PEW; Chinese standard: QZ; Russian GOST: Z series). It’s a manufacturer’s customized coding for “polyester-based heat-resistant thermosetting enameled copper wire.”
Key Technical Characteristics
Based on industry test data and practical applications, PETV type enameled copper wire has the following reliable performance:
| Technical Indicator | Typical Parameter | Practical Significance |
| Heat Resistance Class | 130℃ (Class B) / 155℃ (Class F) | Suitable for long-term operation in high-temperature environments (e.g., motor windings, transformers) |
| Dielectric Strength | 60-85 kV/mm | Prevents leakage and short circuits, meeting insulation requirements for electrical equipment |
| Tensile Strength | ≥15 N/mm² | The enamel film is tough, resistant to scraping during winding, reducing production damage |
| Thermal Shock Resistance | Passes 200℃×30min test | No cracking or peeling in temperature fluctuations (ideal for cold regions like Russia) |
| Chemical Resistance | Resists oils, refrigerants, weak acids/bases | Adaptable to harsh working environments (e.g., air conditioner compressors, industrial motors) |
| Film Thickness | -1 (thick) / -2 (thin) | -2 for dense windings (e.g., small transformers); -1 for high-voltage scenarios |
These parameters are consistent with IEC 60317 (international standard for enameled wire) and GB/T 6109 (Chinese standard). PETV type’s performance is not inferior to standard PEW/QZ wires—only the naming differs.
Where Is PETV Type Enameled Copper Wire Used?
Leveraging its “heat-resistant + thermosetting + high insulation” advantages, it’s widely applied in:
Motor Manufacturing: General industrial motors, household appliance motors (air conditioners, refrigerators, washing machines), power tools.
Transformer & Inductor: Power transformers, audio transformers, LED driver inductors, relay coils.
Automotive & Electrical Equipment: Car ignition coils, solenoid valves, automotive sensors.
Special Environments: Electrical equipment in cold regions (Russia, Northern Europe) and high-temperature industrial settings (factories, power plants).
PETV Type vs. Standard Enameled Copper Wire
Many buyers confuse PETV with standard models—here’s a clear contrast to avoid misunderstandings:
| Feature | Enameled Copper Wire (PETV Type) | Standard PEW (Polyester Enameled Wire) | Standard QZ (Chinese Polyester Wire) |
| Naming Nature | Manufacturer’s custom code | International standard term | Chinese national standard term |
| Core Material | Polyester thermosetting varnish | Same as PETV | Same as PETV |
| Performance | Identical (heat resistance, insulation, mechanical strength) | Identical | Identical |
| Application Scope | Global (customized for some markets) | Global universal | Mainly Chinese market |
| Price | Slightly lower (no standard certification costs) | Transparent (standardized production) | Transparent (national standard pricing) |
How to Choose & Buy PETV Type Enameled Copper Wire
To ensure you select high-quality products, follow these steps:
Confirm Core Parameters:
Verify Supplier Qualifications:
Clarify Application Scenarios:
Avoid Common Pitfalls:
FAQs About Enameled Copper Wire (PETV Type)
Q1: Is PETV type only for Russian markets?
A: No. It’s a global custom code—Chinese, European, and Southeast Asian manufacturers all produce it. It’s popular in Russia due to its adaptability to local climates, but not exclusive to Russophone countries
Q2: Can PETV replace PEW/QZ in standard projects?
A: Yes. As long as the technical parameters (heat resistance, dielectric strength, etc.) meet project requirements, it’s a cost-effective alternative.
Q3: What’s the difference between PETV and PET?
A: PET is “polyester thermoplastic varnish” (melts at high temperatures), while PETV is “thermosetting” (no melting after curing)—PETV is more suitable for high-temperature electrical equipment.
Final Verdict
Enameled copper wire (PETV type) is essentially a polyester-based heat-resistant thermosetting enameled copper wire with performance equivalent to standard PEW/QZ products. Its “custom naming” nature does not affect quality—instead, it offers flexibility for specific market demands.
When purchasing, focus on technical parameters rather than the name itself. Choose suppliers with test reports and standard compliance to ensure your electrical equipment’s safety and durability. If you need this type of wire, please contact us!