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GIS, circuit breaker, disconnector & its parts |
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Cu-W Contact(Tungsten-Copper) |
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Quality |
Unit |
70/30 |
80/20 |
85/15 |
90/10 |
|
Tungsten |
% |
70±2 |
80±2 |
85±2 |
90±2 |
|
Copper |
% |
30±2 |
20±2 |
15±2 |
10±2 |
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Conductivity |
Ms/m |
28 |
24 |
22 |
21 |
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Hardness |
HB 2.5/62.5 typ. |
180 |
220 |
245 |
250 |
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Density |
Mg/cm3 |
>14.0 |
>14.0 |
>16.0 |
>16.80 |
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Oxygen |
Max. Of ppm |
50 |
50 |
50 |
50 |
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Hydrogen |
Max. Of ppm |
10 |
10 |
10 |
10 |
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Nitrogen |
Max. Of ppm |
8 |
8 |
8 |
8 | We could manufacture and supply all kinds of Cu-W contact for circuit breaker. |
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