초록 ▼

The present invention is directed toward a fiber optic cable comprising a central core which has one or more helical channels in its periphery. One or more tubes containing a dielectric water-blocking compound and one or more optical fibers are positioned in the channels. The fibers are randomly arr

The present invention is directed toward a fiber optic cable comprising a central core which has one or more helical channels in its periphery. One or more tubes containing a dielectric water-blocking compound and one or more optical fibers are positioned in the channels. The fibers are randomly arranged within the tubes in such a way that tensile stresses on the cable are not transmitted to them, thus providing an elongation window. Finally, the assembly formed by the core and the tube or tubes is wrapped with a serving of metal wires. In one embodiment, the core and tubes may be wrapped with a tape layer before the outer metal wires are applied. Any interstices among the core, the tube or tubes, and tape may also be filled with another dielectric water-blocking compound.

대표청구항 ▼

A fiber optic cable suitable for use as an overhead static wire, comprising: an electrically conducting core having at least one helical channel with a predetermined lay in its periphery; a tube containing a dielectric water-blocking compound and at least one optical fiber randomly arranged within t

A fiber optic cable suitable for use as an overhead static wire, comprising: an electrically conducting core having at least one helical channel with a predetermined lay in its periphery; a tube containing a dielectric water-blocking compound and at least one optical fiber randomly arranged within the tube, the tube being positioned within said helical channel, and the tube, the optical fiber and the helical channel being arranged to provide an elongation window greater than 0.5%; and a plurality of metal wires wrapped around and in electrical contact with the core, and providing at least the major portion of the tensile strength for the cable.