Paper Covered Aluminum Wire

Short Description:

Paper-covered wire is a winding wire made of bare copper round rod, bare copper flat wire and enamelled flat wire wrapped by specific insulating materials.

The combined wire is a winding wire which is arranged in accordance with the specified requirements and wrapped by a specific insulating material.

Paper-covered wire and combined wire are important raw materials for manufacturing transformer windings.

It is mainly used in the winding of oil-immersed transformer and reactor.

Product Detail

Product Tags

Production Scope


Any other specification to be required, please kindly inform us in advance.

Standard: GB, IEC

Spool Type: PC400-PC700

Package of Enameled Rectangular Wire: Pallet Packing

Certification: UL, SGS, ISO9001, ISO14001, accept third party inspection as well

Quality Control: Company internal standard

Quality Requirements

The paper tape should be tightly, evenly and smoothly wound on the conductor, without lack of layer, without wrinkling and cracking, the overlap of the paper tape shall not be exposed to the seam, the paper tape joint and insulation repair place allow thick insulation layer, but the length cannot be greater than 500mm.

Conductor Material

● Aluminum,the regulation in accordance with GB5584.3-85,the electric resistivity at 20°C is lower than 0.02801Ω.mm/m.

● Copper,the regulation in accordance with GB5584.2-85,the electric resistivity at 20°C is lower than

Product Details


Advantage of Nomex Paper-insulated Wire

It's most suitable for the application on the coil winding from traction transformer, electrical substation, furnace transformer and various oil-filled transformer and dry type transformer.

1. Cost down, reduce the dimension and lighten the weight

Compared with traditional wire,once the dry type transformer equipped with NOMEX,the working temperature can be lifted to 150 C. The general dimension of transformer is reduced and the weight is lightened.

2. Extend workload capacity

The extra capacity will be given to correspond overload and unexpected power expansion.

3. Improve the Ability of Stability

Excellent electric and mechanical performance effects.

It's quite elastic and with excellent aging resistance, anti-shrinkage, so the coil remains the compact structure after several years and the short-circuit impact can be undergone.

NOMEX will bring consider benefits to the customer from economic and environmental aspects,such as reduce the integrated dimension and weight.

It can improve the safety,avoid the flammability of transformer oil, increasing the capability, lower the unload loss of transformer.

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