Copper clad aluminum wire (CAW)
Copper clad aluminum wire (hereinafter called CAW) is produced by mechanically cladding rod of aluminum with copper tape.
CA wire is composite material which has advantages of both copper and aluminum.
CA wire is composite material which has advantages of both copper and aluminum.
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Features
- The weight is approximately 39% comparing to copper (15%CAW).
- Cheaper cost:
The length of same weight is 2.5 times comparing to copper. - Solderable
- Good reliability of connection
No increasing resistance because of no aluminum oxide film.
Connection method is same as copper wire.
Table 1 Physical property of CAW
|
|
Copper wire |
15%CAW |
Aluminum wire |
|---|---|---|---|
|
Density (20°C) ｇ/cm³ |
8.89 |
3.63 |
2.70 |
|
Conductivity (%IACS) |
100 |
68 |
62 |
Table 2 Comparison of CAW with Aluminum wire
|
Condition |
Item |
Copper wire |
15%CAW |
Aluminum wire |
|---|---|---|---|---|
|
In case of same conductivity |
Cross-sectional area |
1 |
1.49 |
1.63 |
|
0.67 |
1 |
1.11 |
||
|
0.64 |
0.94 |
1.03 |
||
|
0.61 |
0.91 |
1 |
||
|
Diameter |
1 |
1.22 |
1.28 |
|
|
0.82 |
1 |
1.05 |
||
|
0.80 |
0.97 |
1.01 |
||
|
0.78 |
0.95 |
1 |
||
|
Weight |
1 |
0.61 |
0.50 |
|
|
1.64 |
1 |
0.82 |
||
|
1.89 |
1.13 |
0.92 |
||
|
2.01 |
1.22 |
1 |
Products using CAW
Coaxial cable
- Inner conductor
- Outer conductor (Tin pleated braided wire)
Solenoidal coil for speaker
Specifications
|
Cross-sectional area of Copper |
Diameter |
Tensile strength |
Elongation |
Conductivity |
|---|---|---|---|---|
|
15 % |
0.1 ~ 2.0 mm |
196 MPa |
1.0 % |
64.2 % |