E.F.W--Enamelled Copper Flat Wire

Product Name: Enamelled Copper Flat Wire
Key Highlights: High dielectric strength, excellent thermal stability and smooth surface for easy winding
Customization: Support customization needs.
Certification: Certified by IEC/ISO/UL/CE/ROHS

Key Attributes

Conductor Material	High-purity oxygen-free copper（Cu ≥ 99.95%，oxygen content ≤ 10 ppm）/ Aluminum
Conductor Dimensions	Thickness (a): 0.80-5.60 mm; Width (b): 2.00-16.00 mm
Enamel Type	Acetal enamel, Modified polyester enamel, Polyester-imide enamel
Enamel Type	Polyester-imide/Polyamide-imide composite enamel, Aromatic polyimide enamel
Thermal Class	120°C (Class 120), 155°C (Class 155), 180°C (Class 180), 200°C (Class 200), 240°C (Class 240)
Insulation Thickness	Thin film (Grade 1), thick film (Grade 2), extra thick film (Grade 3); Customizable per requirements
Mechanical Performance	Resilience ≤ 5.5°
	Elongation: >30% (0.80≤a≤1.60mm), >32% (1.60＜a≤2.50mm)
	Breakdown voltage:≥2.0kV-10.0kV (varies with insulation thickness)
Electrical Performance	Resistivity ≤ 0.017241 Ω·mm²/m (20°C)
Execution Standard	GB/T 6109 (round wire), GB/T 7095 (flat wire); Support customization to IEC 60317, NEMA MW1000
Application	Transformers, motors, locomotive traction motors, coal mining explosion-proof motors new energy vehicle electrical windings, high-voltage motors, special motors

Product Varieties

TYPE	NAME
QQB-1/120	120-Class Thin Film Acetal Enameled Copper Flat Wire
QQB-2/120	120-Class Thick Film Acetal Enameled Copper Flat Wire
QZGB-1/155	155-Class Thin Film Modified Polyester Enameled Copper Flat Wire
QZGB-2/155	155-Class Thick Film Modified Polyester Enameled Copper Flat Wire
QZYB-1/180	180-Class Thin Film Polyester Imide Enameled Copper Flat Wire
QZYB-2/180	180-Class Thick Film Polyester Imide Enameled Copper Flat Wire
Q(ZY/XY)B-2/200	200-Class Thick Film Polyester Imide/Polyamide Imide Enameled Copper Flat Wire
QY(F)B-2/240	Class 240 aromatic polyimide enameled copper flat wire
QQLB-1/120	120-Class Thin Film Acetal Enameled Aluminum Flat Wire
QQLB-2/120	120-Class Thick Film Acetal Enameled Aluminum Flat Wire
QZGLB-1/155	155-Class Thin Film Modified Polyester Enameled Aluminum Flat Wire
QZGLB-2/155	155-Class Thick Film Modified Polyester Enameled Aluminum Flat Wire
QZYLB-1/180	180-Class Thin Film Polyester Imide Enameled Aluminum Flat Wire
QZYLB-2/180	180-Class Thick Film Polyester Imide Enameled Aluminum Flat Wire
Q(ZY/XY)LB-2/200	200-Class Thick Film Polyester Imide/Polyamide Imide Enameled Aluminum Flat Wire
QY(F)LB-2/240	Class 240 aromatic polyimide enameled Aluminum flat wire

Core Advantages

Minimized Losses：Precise transposition cuts circulating/eddy current losses, boosting transformer efficiency.
Superior Thermal Performance：Optimized structure enables fast heat dissipation, ensuring high-temperature stability and longer service life.
Strong Mechanical Reliability：Tightly wrapped integrated structure resists operational/short-circuit mechanical stress effectively.
High Space Utilization：Multi-strand design raises space factor, reduces transformer volume and simplifies processing costs.

Product Features

Integrated design: Reduces assembly steps for customers, improving equipment installation efficiency.
Customized combination: Supports flexible combination of conductors, insulation materials, and structures.
Superior performance: Synergizes the advantages of different materials to achieve higher conductivity and better insulation.
Strict quality inspection: Equipped with advanced testing equipment such as corona resistance testers and eccentricity analysis microscopes.