Paper Covered Insulated Copper/Aluminum Wire

Paper Covered Insulated Copper/aluminum Wire

Paper-insulated magnet wire, also known as paper-covered wire, is a type of electromagnetic wire widely used in various electrical applications. This specialized wire is characterized by its unique construction, where a layer of high-quality insulating paper is tightly wrapped around the conductive core, typically made of copper or aluminum.

 

Shape : round / flat
Dimension:0.2--10.0mm,
Rectangular: thickness: 0.8--10mm, width: 2-25mm
Square: 0.4*0.4mm--8*8mm
Thermal class: 130, 155, 180(Class H), 200(Class C), 220(Class C+), 240(Class HC)
Application: used for transformers, inductors, motors, generators, dry type transformer, Cast Resin Transformers

Product Name	Paper-insulated Magnet Wire Paper-covered Wire Paper-covered Winding Wire
Conductive Core	Aluminum/Copper
Insulation Paper Types	NOMEX Paper/Kraft Paper
Forms	Round/Flat (Rectangular)
Size	Aluminum Flat Wire a: 1.00-8.00mm b: 3.00-25.00mm
	Copper Flat Wire a: 0.90-5.60mm b: 2.00-16.00mm
	Copper/Aluminum Round Wire Diameter: Φ1.7-Φ8.0mm
Certificate	UL
Standards	IEC, JIS, NEMA, GB

 

1.Nomex paper wrapped wire

Nomex paper wrapped wire is a high-performance magnet wire that combines DuPont Nomex® aramid paper insulation with a metal conductor. It designs specifically for electrical equipment in extreme environments and performs particularly well in high-temperature, high-voltage, and strong electromagnetic interference scenarios.

Technical parameters:

Name	Insulation Paper Winding Wire
Conductor aluminum	Round	Rectangular
	Diameter: 1.0~7.0mm	Thickness(a): 1.0~10.0mm; Width(b): 3.0~20.0mm
Conductor copper	Diameter: 1.0~7.0mm	Thickness(a): 1.0~10.0mm; Width(b): 2.0~20.0mm
Insulation Paper type	Nomex paper
Insulation thickness	Single, double or according to your requirement
Standard	IEC,NEMA,GB,JIS
Packing	30kg~150kg Poly-wooden spool (250*500/ 250*600
Appication	Oil-immersed transformer windings;medium and alrge

 

Paper Covered Enameled Aluminum Wire Specifications

Name	Insulation Paper Winding Wire
Conductor aluminum	Round	Rectangular
	Diameter: 1.0~7.0mm	Thickness(a): 1.0~10.0mm; Width(b): 3.0~20.0mm
Conductor copper	Diameter: 1.0~7.0mm	Thickness(a): 1.0~10.0mm; Width(b): 2.0~20.0mm
Insulation Paper type	Kraft electrica paper / HPI-Green / Mark paper.ect.
Insulation thickness	Single, double or according to your requirement
Standard	IEC,NEMA,GB,JIS
Packing	30kg~150kg Poly-wooden spool (250*500/ 250*600
Appication	Oil-immersed transformer windings;medium and alrge

2.Kraft Paper Covered Insulated Wire – advanatges

Performance

High electrical, chemical and mechanical integrity,
High elasticity, flexibility, tear resistance, moisture and abrasion resistance
Excellent acid and alkali corrosion resistance

Transformers using paper-covered wires offer the following advantages:

Reduce material usage: Require fewer wires and iron cores, minimizing overall material consumption.
Reduce size and weight: Smaller and lighter transformer designs simplify transportation and handling.
Lower infrastructure costs: Smaller equipment reduces installation space and related construction expenses.
Resist biological damage: Withstand insects, mold, and fungi without degradation.
Enhance chemical compatibility: Work seamlessly with various varnishes, adhesives, transformer fluids, lubricants, and refrigerants.
Improve overall performance: Deliver significant economic, environmental, and safety benefits to customers.

Paper Covered Enameled Aluminum Wire Specifications

Name	Insulation Paper Winding Wire
Conductor aluminum	Round	Rectangular
	Diameter: 1.0~7.0mm	Thickness(a): 1.0~10.0mm; Width(b): 3.0~20.0mm
Conductor copper	Diameter: 1.0~7.0mm	Thickness(a): 1.0~10.0mm; Width(b): 2.0~20.0mm
Insulation Paper type	Kraft electrica paper / HPI-Green / Mark paper.ect.
Insulation thickness	Single, double or according to your requirement
Standard	IEC,NEMA,GB,JIS
Packing	30kg~150kg Poly-wooden spool (250*500/ 250*600
Appication	Oil-immersed transformer windings;medium and alrge

 

3.Paper Covered Enameled Copper Wire

Paper covered enameled copper wire (PCECW) is a type of insulated wire used extensively in electrical engineering and electromechanical applications, particularly in the winding of transformers, motors, and reactors. This wire combines the excellent conductivity of copper with robust insulation layers of enamel and paper.

Our Specifications

Name	Insulation Paper Winding Wire
Dimension	Round	Rectangular
	Diameter: 1.0~7.0mm	Thickness(a): 1.0~10.0mm; Width(b): 3.0~20.0mm
Insulation Paper type	Kraft electrica paper / Nomex paper / HPI-Green / Mark paper.ect.
Insulation thickness	Single, double or according to your requirement
Standard	IEC,NEMA,GB,JIS
Packing	30kg~150kg Poly-wooden spool (250*500/ 250*600
Appication	Oil-immersed transformer windings;medium and alrge

 

4.Paper-covered enameled aluminum wire

Paper-covered enameled aluminum wire(PCEAW) is a specialized type of electrical wire used primarily in the winding of transformers, motors, and other electromagnetic devices. This wire combines the properties of aluminum with insulation layers of enamel and paper to provide electrical isolation, mechanical protection, and enhanced thermal performance.

Types of Paper covered enameled aluminum wire

Shapes	round paper covered aluminum wire, flat paper wrapped aluminum wire
Insulation building	Paper covered enameled aluminum wire, paper covered bare aluminum wire
Paper Layers	Single, double, triple or according to clients' requirement
Insulation materials	Telephone paper, cable paper, high-voltage paper, and turn-to-turn insulating paper

Specifications

Name	Insulation Paper Winding Wire
Dimension	Round	Rectangular
	Diameter: 1.0~7.0mm	Thickness(a): 1.0~10.0mm; Width(b): 3.0~20.0mm
Insulation Paper type	Kraft electrica paper / Nomex paper / HPI-Green / Mark paper.ect.
Insulation thickness	Single, double or according to your requirement
Standard	IEC,NEMA,GB,JIS
Packing	30kg~150kg Poly-wooden spool (250*500/ 250*600
Appication	Oil-immersed transformer windings;medium and alrge

Uses, structure and types of Paper covered enameled aluminum wire

Types	Structure	Applications	Advantages
Single Paper-covered Enameled Aluminum Wire	Aluminum core with a single layer of enamel coating and a single layer of insulating paper.	Suitable for low to moderate voltage applications where basic insulation is sufficient.	Cost-effective and lightweight.
Double Paper-covered Enameled Aluminum Wire	Aluminum core with a single layer of enamel coating and two layers of insulating paper.	Used in applications requiring higher dielectric strength and better insulation, such as medium voltage transformers and motors.	Enhanced insulation properties compared to single paper-covered wire.
Triple Paper-covered Enameled Aluminum Wire	Aluminum core with a single layer of enamel coating and three layers of insulating paper.	Ideal for high-voltage applications where maximum insulation is critical, such as high-power transformers and reactors.	Provides superior insulation and dielectric strength.
Thermally Upgraded Paper-covered Enameled Aluminum Wire	Aluminum core with a high-temperature enamel coating and thermally upgraded paper insulation.	Used in environments with high operating temperatures, such as industrial transformers and high-performance motors.	Improved thermal stability and longer lifespan under high-temperature conditions.
Diamond Dotted Paper-covered Enameled Aluminum Wire	Aluminum core with an enamel coating and paper insulation that has a diamond dotted pattern. The pattern typically involves resin-coated paper which forms a bond when heated, providing additional mechanical strength and stability.	Employed in applications requiring robust mechanical properties and enhanced thermal stability, such as in traction motors and heavy-duty transformers.	Enhanced mechanical stability and resistance to thermal and mechanical stresses.
Composite Paper-covered Enameled Aluminum Wire	Aluminum core with an enamel coating and multiple layers of different types of paper (e.g., kraft paper, crepe paper, NOMEX® paper).	Designed for specialized applications where unique combinations of properties are needed, such as high-frequency transformers or specific industrial applications.	Customized properties to match specific application requirements.
Presspaper-covered Enameled Aluminum Wire	Aluminum core with an enamel coating and a presspaper insulation layer, often used in high mechanical stress environments.	Ideal for applications requiring strong mechanical properties and good dielectric strength, such as power transformers and reactors.	High mechanical durability and excellent electrical insulation.