Impact resistant compact cable
US7488892B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 5, 2003 |
| Grant date | Feb 10, 2009 |
| Priority date | — |
| Expiry date | Jun 5, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01B9/02
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A cable for use in a predetermined voltage class, has a conductor; an insulating layer surrounding the conductor, the insulating layer having a thickness selected to provide a predetermined electrical stress when the cable is operated at a nominal voltage in said predetermined voltage class; and a protective element around the conductor having a thickness and mechanical properties selected to provide a predetermined impact resistance capability, the protective element having at least one expanded polymeric layer. The insulating layer thickness and the protective element thickness are selected in combination to minimize the overall cable weight while preventing a detectable insulating layer damage upon impact of 50 J energy. A method for designing a cable is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.