Name: Insulation Paper Insulation Material and Copper Conductor Material Transformer Winding Wire
Brand: ZOTO
Availability: InStock

Product Details

Insulation Paper Insulation Material and Copper Conductor Material Transformer Winding Wire

Product Description

1.Introduction: The annealed conductor of kraft paper wrapped wire is extruded or dawn from oil-free copper rod or electrical round aluminum rod with certain specification mould. Then the copper or aluminum conductor is wrapped with two layers’ or more than two layers’ insulation paper including telephone paper, cable paper, high voltage paper, turn-to turn insulation paper. The product is widely applied in oil-immersed transformers and other similar electrical instruments. The electrical bare copper or aluminum wire with extrusion process is the ideal material for kraft paper wrapped copper or aluminum wire.

2.Standard: GB/T 7672-2008

3.Production Range:

Aluminum Rectangular Wire

Narrow border size a: 1.00-8.00mm

Wide border size b: 3.00-25.00mm

Copper Rectangular Wire

Narrow border size a: 0.90-5.60mm

Wide border size b: 2.00-16.00mm

Copper or Aluminum Round Wire

Diameter: Φ1.7-Φ8.0mm

If specification is out of range, please don’t hesitate to contact us.

4.Material:

Aluminum rectangular wire should conform to GB5584.3-2009, the resistivity (20℃) is no more than 0.0280Ωmm²/m

Copper rectangular wire should conform to GB5584.2-2009, the resistivity (20℃) is no more than 0.01724Ωmm²/m

5.Thickness of kraft paper wrapped round or rectangular wire should conform to the following table or mutual consultation between supply and demand requirements:

Kraft Paper Wrapped Round Wire Unit: mm

Conductor Nominal Diameter	1.00≤d≤5.00
Nominal Insulation Thickness	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 thickness is between two specification, please take the deviation corresponding to large size.

Kraft Paper Wrapped Rectangular Wire Unit: mm

Insulation Thickness
Nominal Insulation Thickness	0.45	0.60	0.95	1.35	1.60	1.95	2.45	2.95
Maximum Insulation Thickness (A-a)	0.57	0.74	1.14	1.56	1.84	2.23	2.77	3.32
Minimum Insulation Thickness(B-b)	0.40	0.53	0.85	1.20	1.45	1.80	2.30	2.75