High Quality Kraft Paper Covered Conductor Copper/AluminumWire Flat section For Transformer
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⊙ Introduction
The annealed conductor of cable paper wrapped wire is extruded or drawn 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 cable wrapped copper or aluminum wire.
⊙ Standard: GB/T7672-2008
⊙ Production Range
Aluminum Rectangular Wire
Narrow side size a : 1.00mm—8.00mm
Broad side size b : 3.00mm—25.00mm
Copper or Aluminum Round Wire
Diameter:φ1.7—φ8.0
If specification is out of range, please don't hesitate to contact us.
⊙ 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 0.017241Ωmm2/m
⊙ Thickness of kraft paper wrapped round or rectangular wire should conform to the following table or mutual consultation between supply and demand requirements
| 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 thickness is between two specifications, please take the deviation corresponding to large size. | ||||||
⊙ Kraft Paper Wrapped Rectangular Wire
| Insulation Thickness/mm | |||||||||||
| Nominal Insulation Thickness | 0.45 | 0.60 | 0.95 | 1.35 | 1.60 | 1.95 | 2.45 | 2.95 | |||
| Maximum Insualtion 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 | |||
Bending Standard of Kraft Paper Wrapped Wire
| Round wire | Unit:mm | Rectangular wire | Unit: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 |
our service
1) Free samples are available.
2) Factory price based on excellent quality.
3) Advanced Technology & Management with senior professional team.
4) 6S quality manage system.One spool cann't packing only satisfy with quality test.
5) Strong production ability and shipment on-time.
6) Supply you nice after-sale service & technical guidance.
