发明名称 ELECTRICAL CONDUCTOR PROVIDED WITH A SURROUNDING ELECTRICAL INSULATION
摘要 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.
申请公布号 EP0287813(A3) 申请公布日期 1990.06.27
申请号 EP19880104398 申请日期 1988.03.19
申请人 ASEA BROWN BOVERI AB 发明人 HJORTSBERG, ARNE;HOLMSTROM, GORAN;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
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