Electric power transmission cable
US11250970B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 2, 2019 |
| Grant date | Feb 15, 2022 |
| Priority date | — |
| Expiry date | Sep 2, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02G15/08
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electric power transmission cable comprises electric power conductors and a plurality of parallel spiralled armouring wires. The electric power transmission cable comprises along its length a first section (I), a second section (III) and a transition section (II). The transition section (II) is provided between the first section (I) and the second section (III). The plurality of parallel spiralled armouring wires in the first section (I) comprises or consists out of first armouring wires (121). The first armouring wires (121) are carbon steel wires comprising a metallic corrosion resistant coating. At least part of the plurality of parallel spiralling armouring wires in the second section (III) comprise austenitic steel wires (123). In the transition section (II), ends of first armouring wires (121) are individually welded to ends of austenitic steel wires (123) of the second section (III). The transition section (II) starts at the first weld (137) between a first armouring wire (121) and an austenitic steel wire (123). The transition section (II) ends at the last weld (130) between a first armouring wire (121) and an austenitic steel wire (123). The transition section (II) is a…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.