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Judian New Materials

Polyimide film copper (aluminum) wire

Product description:
This product is made of oxygen-free copper rods or electrical round aluminum rods that are annealed after being extruded or drawn by a certain specification die, and then wrapped 2-3 layers of polyester imide film or + electrical materials on the copper and aluminum conductors. The winding wire with woven fabric as the insulating layer has good voltage resistance, and the temperature resistance level is 180℃. It is mainly used for winding of transformers, air-core reactors and other similar electrical equipment. The company uses advanced online eddy current flaw detection equipment to make the product quality more perfect.

Executive standard:GB/T7673-2008 and corporate standards

Production range:
Aluminum flat wire
Narrow side size: a: 1.00mm—8.00mm
Wide side size: b:3.0mm—25.00mm
Copper flat wire
Narrow side size a: 0.80mm—5.60mm
Wide side size b: 2.00mm-16.00mm
Copper aluminum round wire
Diameter size: φ1.7—φ8.0
If the selected specification exceeds the above range, please contact us.

material:
The aluminum flat wire should meet the requirements of GB5584.3-2009, and the resistivity at 20°C should not be greater than 0.0280Ωmm2/m
The rectangular copper wire should meet the requirements of GB5584.2-2009, and the resistivity at 20°C should not be greater than 0.017241Ωmm2/m

The size of aluminum copper round wire should meet the requirements of the following table:

Nominal diameter mm	deviation
0.90＜d≤2.50	±0.025
2.50＜d≤5.00	±1%d

Other technical indicators (corporate standards):

Wrapping method	Insulation thickness mm		Breakdown voltage is not less than
Wrapping method	Nominal value	tolerance	Breakdown voltage is not less than
2-layer polyimide film	0.22	±0.03	5000
2 layers of polyimide film + 1 layer of non-woven fabric	0.33	±0.03	5000
3-layer polyimide film	0.30	±0.03	7500
3 layers of polyimide film + 1 layer of non-woven fabric	0.42	±0.03	7500

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