●Product introduction: This product is made of oxygen-free copper rod or electric round aluminum rod after being extruded or drawn by a certain size of mold, and then wrapped around 2-3 layers of polyester film or + electrician on copper and aluminum conductor. The non-woven fabric is used as the winding wire of the insulating layer. The product has good withstand voltage and the temperature resistance grade is 130°C of Class B. It is mainly used for winding of transformers, air core reactors and other similar electrical equipment. The company uses advanced online eddy current testing equipment to make product quality more perfect.
●Executive standards: GB/T7673-2008 and corporate standards
●Production range:
Aluminum flat wire
Narrow edge size a: 1.00mm—8.00mm
Wide side size b: 3.00mm - 25.00mm
Copper flat wire
Narrow edge size a: 0.90mm - 5.60mm
Wide side size b: 2.00mm - 16.00mm
Copper and aluminum round wire
Nominal diameter of conductor: φ1.7—φ6.0
If the selection specification is beyond the above range, please contact us.
●Material
The resistivity of aluminum wire at 20 ° C is not more than 0.028010 Ωmm2 / m
The resistivity of copper wire at 20 ° C is not more than 0.017241 Ωmm2 / m
●Aluminum and copper round wire size should meet the following requirements:
Nominal diameter | deviation |
0.90<d≤2.50 | 士0.025 |
2.50<d<5.00 | 土1%d |
●Other technical indicators (enterprise standards)
Winding method | Insulation thickness mm | Breakdown voltage is not less than | |
Nominal value | tolerance | ||
Two-layer polyester film | 0.22 | 士0.03 | 5000 |
Two-layer polyester film + one layer of non-woven fabric | 0.33 | 士0.03 | 5000 |
Bismuth polyester film | 0.3 | 士0.03 | 7500 |
Three-layer polyester film + one layer of non-woven fabric | 0.42 | 士0.03 | 7500 |