Conductor for an electrical power cable
First Claim
1. A stranded conductor for an electrical power cable constituted by a plurality of stranded cooper strands, at least one of said strands being covered with a cupric oxide film having a thickness of from about 0.3 to about 3 μ
- m, free from exfoliation, and formed by oxidizing said one strand and forming an insulating film for electrically insulating said one strand from the other strands.
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Accused Products
Abstract
In a method for manufacturing a stranded conductor for an electrical power cable comprising a process for forming cupric oxide films of from 0.3 μm to 3 μm in thickness by passing an uninsulated stranded conductor constituted by a plurality of stranded copper strands through oxidizing liquid, the stranded conductor passing through the liquid is curved in a wave to form gaps between the strands, and the oxidizing liquid is caused to penetrate between the strands through the gaps to form cupric oxide films of from 0.3 μm to 3 μm in thickness on the surfaces of the strands. Also disclosed is a stranded conductor for an electrical power cable constituted by a plurality of stranded copper strands, at least one of the copper strands being covered with a cupric oxide film free from exfoliation.
47 Citations
1 Claim
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1. A stranded conductor for an electrical power cable constituted by a plurality of stranded cooper strands, at least one of said strands being covered with a cupric oxide film having a thickness of from about 0.3 to about 3 μ
- m, free from exfoliation, and formed by oxidizing said one strand and forming an insulating film for electrically insulating said one strand from the other strands.
Specification
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- Resources
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Current AssigneeFujikura Rubber Limited
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Original AssigneeFujikura Rubber Limited
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InventorsWatanabe, Kazuo, Takaoka, Michio, Yoshida, Syotaroh, Mohtai, Tsuneaki
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Primary Examiner(s)Kucia, R. R.
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Application NumberUS06/610,566Time in Patent Office644 DaysField of Search174/110 A, 174/108 R, 174/126 S, 174/126 CUS Class Current174/110.00ACPC Class CodesH01B 13/16 by passing through or dippi...H01B 5/08 Several wires or the like s...H01B 7/303 Conductors comprising inter...Y10S 174/33 Method of cable manufacture...
