Enameled Copper (Aluminum) Flat Wire is a wire using oxygen-free copperrod or electrical round aluminum rod under extrusion by requested specificationprocedure, Then painted with requiredmould or dawning and annealingtemperature tolerance level insulating coatings by mold type or blanket typ, afterbaking procedure, the conductor and insulating coating will become an integralproduct The product is now widely used incoil-immersed transformers, drytransformers, electric reactor, motorg choke coils and other similar electricalinstruments.
Polyester enameled copper (aluminum) rectangular wire class130
Polyester enameled copper (aluminum) rectangular wire class150
Polyester-imide enamelled copper (aluminum) rectangular wire class180
Polyester-imide base coating and polyamide-imide face coating compound enameled copper (aluminum) rectangular wire class200
Polyimide enameled copper (aluminum) rectangular wire class220
1.Standard:Enameled Copper (Aluminum) Flat Wire conform to GB7673-2008、GB/T7095-2008、GB/T6109-2008(1EC60371)and enterprise standards
2. Production Range:
Enameled copper rectangular wire
Narrow side size a:1.18mm-5mm
Wide side size b:2.8mm-16mm
Enameled aluminum rectangular wire
Narrow side size a:2mm-5mm
Wide side size b:3.5mm-16mm
The electric resistivity of copper wire rectangular wire is no more than 0.017241 Ω m² /m, and the electric resistivity of aluminum rectangular wire is no more than 0.02801 Ω m²/m with the temperature of 20°C.
4. The size of the conductor, minimum film thickness, and maximum external diameter size should conform to the flowing tables:
| Narrow nominal side size a or wide nominalside size b(mm) | Deviation(mm) |
|---|---|
| a(b)＜3.15 | ±0.030 |
| 3.15＜a(b)≤6.30 | ±0.050 |
| 6.30＜a(b)≤12.50 | ±0.070 |
| 12.50＜a(b)＜16.00 | ±0.100 |
5.Film thickness
| level | Film thickness(mm) | ||
|---|---|---|---|
| Min | Standard Size | Max | |
| 1 | 0.06 | 0.085 | 0.11 |
| 2 | 0.12 | 0.145 | 0.17 |
6.Conductor fillet radius r
| Nominal size(mm) | Fillet radius r | |
|---|---|---|
| Nominal size/mm | Deviation | |
| a≤1.00 | a/2 | — |
1.00| 0.5 | ±25% |
|
1.60| 0.65 |
| |
2.24| 0.8 |
| |
| a>3.55 | 1 | |
7.External size
NominaD external size should be the sum of standard conductor size and film thickness.
Minimum external size should be the sum of minimum conductor size and minimum film thickness.
Maximum external size should not exceed the sum of the maximum size of the conductor and maximum film thickness.
8.Elongation
| Narrow nominal side size a(mm) | Minimum elongation(%) | |
|---|---|---|
| ＞ | ≤ | |
| — | 2.5 | 30 |
| 2.5 | 5.6 | 32 |
Note: Proof strength at non-proportional extension and elongation of semi-hard copper should conform to the following table.
| Type | Proof strength at non-proportional extension (N/mm2 ) | Min Elongation (%) | the resistivity of copper in 20℃ (Ωm²/m) |
|---|---|---|---|
| C1 | 100| 20 | 1/58.0 |
|
| C2 | 100| 20 | 1/57.5 |
|
100| 15 | 1/57.5 |
| |
| C3 | 100| 15 | 1/57.0 |
|
9.Rebound resilience
The rebound angle of conductor should less than or equal to 5°
Note: Except semihard copper.