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Paper Covered Wire

Paper Covered Wire

The annealed conductor of the paper covered wire is formed through extruding or drawing the oil-free copper rod or electrical round aluminum rod by using mould of certain specification. Then, we wrap the copper or aluminum conductor with insulation paper for two layers or multiple layers.

The product can be employed widely for oil-immersed transformer and other similar electric equipment. The bare electric copper or aluminum wire processed with extrusion is the preferable material for cable wrapped copper or aluminum wire. The insulation paper can be the telephone type, cable type, high voltage type, turn-to-turn insulation type, etc. As a professional paper covered wire manufacturer and supplier in China, we also supply other types of wires, eg. stainless steel type, enameled type, hot dip galvanized type, compensating cable, etc.

Product Information
Standard GB/T7672-2008
Flat Type Thickness 1.0mm to 8.0mm
Width 2.0mm to 25.0mm
Round Type Diameter 1.7mm to 8.0mm
Remark: We can produce the product with the specification in line with the requirements of customers.
Aluminum Rectangular Wire Conforming to GB5584.3-2009 Resistivity (20℃) ≤0.0280Ωmm2/m
Copper Rectangular Wire Conforming to GB5584.2-2009 Resistivity (20℃) ≤0.017241Ωmm2/m
Nominal Insulation Thickness of Kraft Paper Wrapped Round Type
Conductor Nominal Diameter 1.000≤d≤5.00
Nominal Insulation Thickness/mm 0.30 0.45 0.80 1.20 1.80 4.25
Deviation ±0.05 ±0.05 ±0.10 ±0.12 ±0.15 ±0.30
Note: If the thickness is between two specification values, please take the deviation corresponding to large size.
Insulation Thickness of Kraft Paper Wrapped Rectangular Type
Insulation Thickness/mm
Nominal Insulation Thickness 0.45 0.60 0.95 1.35 1.60 1.95 2.45 2.95
Max. Insulation Thickness (A-a ) 0.57 0.74 1.14 1.56 1.84 2.23 2.77 3.32
Min. Insulation Thickness (B-b) 0.40 0.53 0.85 1.20 1.45 1.80 2.30 2.75

Note: The insulation thickness can be customized in line with the requirements of customers.

Bending Standard of Kraft Paper Wrapped Type

Round Type (mm) Flat Type (mm)
Insulation Thickness/mm Experimental Method Rod Diameter Insulation Thickness/mm Experimental Method Rod Diameter
0.30≤σ≤0.80 Involution 100 0.30≤σ≤0.80 Broad Side Bending 150
1.20≤σ≤4.25 150 1.20≤σ≤4.25 200
Other Information
1. Production Capability: 50tons/month
2. Delivery Date: 10 to 20 working days after receipt of downpayment or L/C
3. Payment Term: T/T or L/C
4. Price Term: FOB, CNF, CIF, CPT, DDU, DDP

Related Names
Kraft Paper Wrapped Copper Wire Supplier | Enamelled Aluminum Wire | Multi-layer Paper Insulated Wire | Copper Clad Alumimum Wire

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