Fire resistant coaxial cable
US9773585B1 · kind B1 · utility
14Cited by
7References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 20, 2016 |
| Grant date | Sep 26, 2017 |
| Priority date | — |
| Expiry date | Dec 20, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01B11/1813
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A fire-resistant coaxial cable is described in which the dielectric between the central conductor and outer coaxial conductor can ceramify under high heat. The dielectric is composed of a ceramifiable silicone rubber, such as that having a polysiloxane matrix with inorganic flux and refractory particles. An outer wrap of ceramic fiber yarn surrounds the outer conductor and continues to insulate it from the outside if a low smoke zero halogen jacket burns away. Embodiments include those with durable corrugated outer conductors or flexible braided outer conductors. Methods of testing and installation are described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.