Optical fiber cable capable of withstanding a jump in temperature to 350.degree. C. for a short period of time
US5028116A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 5, 1990 |
| Grant date | Jul 2, 1991 |
| Priority date | — |
| Expiry date | Jul 5, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/4436
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical fiber cable capable of withstanding a jump in temperature to 350.degree. C. for a short period of time, the cable comprising: PA0 (a) at least one carrier element of a composite of glass fiber and thermosetting resin; PA0 (b) an optical fiber support constituted by a grooved rod surrounding the carrier element, or a tube preferably provided with carrier elements in its thickness, or by compact structure fibers, the rod or tube being made of a thermoplastic polymer; PA0 (c) optical fibers disposed in the grooves of the rod or inside the tube; PA0 (d) a viscous material filling the grooves or the tube around the optical fibers; PA0 (e) an envelope constituted by a tape of thermoplastic polymer; PA0 wherein the grooved rod or the tube, or the secondary coating of compact structure fibers, is made of cross-linked polyethylene, wherein the viscous material filling the grooves is a silicon resin, and wherein the thermoplastic polymer of the envelope is a polyimide resin. Suitable for use as a guard cable in conjunction with high tension or medium tension electric cables.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.