发明名称 |
Electrical conductor provided with a surrounding electrical insulation |
摘要 |
<p>An electrical conductor is provided with an electrical insulation (11) surrounding the conductor (10) and a surrounding protective layer (12) which protects the insulation against degradation caused by corona. The protective layer consists of an organic polymer containing at least 10 per cent by volume of a powdered filler material in the form of chromium oxide, iron oxide, or a mixture of chromium oxide and iron oxide. The filler preferably has an intrinsic resistivity of 10<4> - 10<8> ohm m. The thickness of the protective layer is preferably smaller than the thickness of the underlying insulation (11) and its resistivity preferably exceeds 10<1><0> ohm m. The conductor is used, among other things, in windings and coils for electrical machines.</p> |
申请公布号 |
EP0287813(B1) |
申请公布日期 |
1998.06.10 |
申请号 |
EP19880104398 |
申请日期 |
1988.03.19 |
申请人 |
ASEA BROWN BOVERI AB |
发明人 |
HJORTSBERG, ARNE;HOLMSTROEM, GOERAN;JOHANSSON, LENNART;KARLSSON, THOMMY |
分类号 |
H01B7/02;C08K3/22;H01B3/30;H01B7/17;H02K3/40;(IPC1-7):H01B3/30 |
主分类号 |
H01B7/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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