Electric cable having braidless polymeric ground plane providing fault detection
US6288372A · kind A · utility
224Cited by
26References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 3, 1999 |
| Grant date | Sep 11, 2001 |
| Priority date | — |
| Expiry date | Nov 3, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B3/56
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrical cable device such as a heating cable includes a braidless ground return layer surrounding an inner jacket. The ground return layer is formed by a conductive polymer and a ground return wire connected to the conductive polymer. The polymer may be made suitably conductive for ground fault detection by addition of a particulate conductive filler such as carbon black, carbon fibers, or a blend thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.