Double Fiberglass Covered Copper Wire

Double Fiberglass Covered Copper Rectangular Wire is a high-quality winding wire designed for high-voltage motors, generators, transformers, and other specialized electrical equipment, widely used in medium- and large-sized rotating motors and dry-type transformers.

CopperConductor

Round / RectangularProfile

Glass FiberInsulation

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Product Overview

Conductor

Made from high-quality oxygen-free copper with high electrical conductivity after annealing.

Winding Requirements

Available in round and rectangular conductor sizes to meet the winding requirements of high-voltage motors, generators, transformers, and other specialized electrical equipment.

Insulation

Available with double glass fiber wrapping, polyester-glass fiber blend wrapping, glass fiber with enamel or film, and mica tape with glass fiber, with customizable insulation structures and thicknesses.

Technical Specifications

Recommended conductor sizes

Flat Conductor	Thickness 1.00-6.00mm,Width 3.00-16.00mm
Round Conductor	Diameter 2.50-5.00mm

Recommended Insulation Structures

Double Glass Fiber Covered- Insulation Thickness (two sides)	0.20mm, 0.30mm, 0.40mm
Polyester Fiber and Glass Fiber Blend Wrapped- Insulation Thickness (two sides)	0.20mm, 0.30mm, 0.40mm
Glass Fiber Covered Enamelled Wire- Insulation Thickness of (two sides)	0.20mm, 0.30mm
Glass Fiber with Film Wrapped-Insulation Thickness (two sides)	0.30mm, 0.40mm, 0.50mm
Mica Tape with Glass Fiber Wrapped- Insulation Thicknes (two sides)	0.60mm, 0.80mm
Glass Fiber with Film and Mica Tape Wrapped-Insulation Thickness (two sides)	0.60mm, 0.70mm, 0.90mm
Insulation structures can be designed according to user requirements,and the above insulation thicknesses are nominal reference sizes.

Values shown are typical ranges — exact parameters are confirme.

Material Description

Conductor Materials

Copper Conductor:
• High-quality oxygen-free copper rods with an oxygen content of less than 20ppm. The conductivity exceeds 100% after annealing.
• High-quality aluminum electrical rods, with a conductivity exceeding 62% after annealing.

Insulation Materials

High-quality insulation materials from both domestic and foreign suppliers

Glass Fiber
Polyester Fiber and Glass Fiber Blend
Glass Fiber Tape
Polyimide Film
Mica Tape
Users can specify the brand, model and specification of insulation materials.

Key Advantages

High Electrical Conductivity

Made from oxygen-free copper with oxygen content below 20 ppm and conductivity exceeding 100% IACS after annealing, ensuring efficient current transmission.
Reliable Fiberglass Insulation

The Double Fiberglass Covered Wire uses reinforced fiberglass insulation with customizable thicknesses from 0.20–0.90 mm on both sides, providing stable electrical insulation and mechanical protection.
Flexible Rectangular Wire Dimensions

The Rectangular Copper Wire supports conductor sizes from 1.00–6.00 mm in thickness and 3.00–16.00 mm in width, suitable for different winding designs.
Multiple Insulation Options

Fiberglass, polyester-glass fiber, polyimide film, mica tape, and hybrid insulation structures are available to meet different voltage, insulation, and application requirements.