Product Introduction

Paper covered wire and composite wire are important materialsfor making transformer winding. lt is mainly used to manufacturewindings of power transformers, reactors and distributiontransformers.

Spencer specializes in the production of copper, aluminumconductor paper covered wire,combined wire, productdimensions accurate,wrapping moderate tightness, continuousno joint length of more than 8000 meters.

Cross section diagram of Papercovered wire combinationconductor

Paper covered wire

Enamelled paper covered wire

Bareflatwire combination conductor

Papercovered wire combination conductor

Enamelled wire combination conductor

Composite conductorwith membrane covered wire

ProducingbaseonCustomer Standard available.

Technical Data

Paper Covered wire Conductor Specification

0ptimal Sheet Wire Conductor Size:

thickness 0.80~12.00 mm

Width3.00~25.00 mm

Width vs Thickness:≤20

Maxcross section 200mm

0ptimal round wire conductorsize:

Diameter 2.00~5.00 mm

Enamelled paper wrapped wire and enamelled composite conductor specifications

0ptimal Sheet Wire Conductor Size:

Thickness 1.00~3.00 mm

width5.00~18.00mm

0ptimal round wire conductorsize:

Diameter 2.00~5.00 mm

Bare wire, paper wrap, film wrap combined conductor specifications

Optimal conductorsize:Thickness 1.00~6.00mm，width 4.00~20.00 mm

Insulation wrappingmethod

Butt wrap -- butt gap is not more than 0.5mm

overlap wrap --overlap width 2-4mm

Interlock wrap--interlace 50%

Material Standard

Conductor Material

High quality oxygen-free copper rod selectedto produce the copper conductor,oxygen content is less than 20 ppm, conductivity is greaterthan 100% after annealing.

Optimal Non-proportional extension strength of semi-hard copper conductors (Rp0.2)

as below:C1 Rp0.2(>100~180)N/mm2Rp0.2 <200N/mm2 resistivity<1/58Q.mm?/m

C2 Rp0.2(>180~220)N/mm2Rp0.2>200N/mm2，resistivity<1/57.8 Ω.mm'/m

C3 Rp0.2(>220-260)N/mm2

High-quality electrician round aluminum rod was used to produce the aluminum conductor,conductivity is greater than 62% after annealing.

Wrappinginsulation material

High qualityofwrappinginsulation material

Cable paper

High densityinsulation paper 

Heat resistinsulation paper

Highelongation fiber paper

Aromatic polyamide Paper(Nomex)

PETfilm

Insulation material brand, type and spec customized available.

Production Package

Optimal Pony Roll