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Help CenterPolyester Enamelled Round Copper Wire (PEW/155) for Electrical Insulation
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As a leading manufacturer since 1970, Shandong Huilong Electrical Material leverages over 50 years of expertise to produce premium Polyester Enamelled Round Copper Wire (PEW/155). Operating from our 10,000-30,000 sqm facility in Dezhou, we supply high-performance insulation solutions to global markets including North America, Europe, and Asia. Our PEW/155 wire meets rigorous international standards, backed by ISO9001 and OHSAS18001 certifications, ensuring reliability for critical electrical applications.
This wire delivers exceptional thermal stability and electrical integrity, engineered to withstand demanding industrial environments while optimizing energy efficiency.
Core Technical Specifications:
| Parameter | Value Range | Test Standard |
|---|---|---|
| Conductor Diameter | 0.1mm - 5.0mm | IEC 60317 |
| Dielectric Strength | Min 100V/μm | IEC 60851 |
| Elongation at Break | ≥ 30% | ASTM B193 |
| Thermal Shock Resistance | Passes 3x at 200°C | IEC 60172 |
Performance Advantages:
- High Temperature Endurance: Continuous operation at 155°C with 20,000+ hour thermal life rating
- Superior Dielectric Properties: Breakdown voltage exceeding 100V/μm prevents current leakage
- Mechanical Durability: Withstands 30+ bends without cracking (0.5mm wire test)
- Chemical Resistance: Polyester coating resists oils, solvents and moisture ingress
- Space Efficiency: Thin insulation layer (typically 5-15% of conductor diameter) enables compact designs
These characteristics translate to direct benefits for equipment manufacturers: reduced winding failures, extended component lifespan, and compliance with international safety regulations. The wire's consistent dimensional accuracy (±0.005mm) ensures trouble-free automated winding processes.
With over US$100 million in annual exports shipped from Qingdao/Shanghai ports, our products have been trusted across 15+ global regions including Western Europe and North America. Supported by 51-100 specialized technicians, we maintain batch-to-batch consistency through:
- Automated optical diameter measurement
- Statistical process control (SPC) monitoring
- 100% continuity testing
Choose PEW/155 for transformer and motor applications requiring uncompromised insulation integrity. Contact us today to discuss custom diameter configurations or request samples through our international logistics network.
Frequently Asked Questions:
Q: What temperature range does PEW/155 support?
A: Designed for continuous operation at 155°C with intermittent peaks to 180°C, suitable for Class B insulation systems.
Q: Can I get non-standard diameters?
A: Yes, we customize diameters from 0.05mm to 6.0mm with tolerance control down to ±0.002mm.
Q: What packaging options are available?
A: Standard options include 5-50kg spools with wooden reels. Vacuum-sealed moisture barrier packaging is optional.
Q: Do you provide material certifications?
A: Full traceability documentation including ISO9001 compliance reports and RoHS test certificates are available.
Q: What's the typical delivery lead time?
A: Stock items ship in 7-10 days; custom orders require 15-25 days based on complexity.
Q: How does this compare to polyurethane-enamelled wire?
A: Polyester offers superior thermal endurance (155°C vs 130°C) and better moisture resistance for harsh environments.
Q: Can it be used for high-frequency applications?
A: Yes, the uniform enamel coating provides excellent high-frequency performance with low dielectric loss.
Q: What industries commonly use this wire?
A: Widely adopted in automotive motors, power transformers, HVAC compressors, and generator windings.
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