Fiber optic groundwire with coated fiber enclosures
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United States of America Patent
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Feb 27, 1996
Grant Date -
N/A
app pub date -
Apr 13, 1994
filing date -
Apr 13, 1994
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention is directed toward an optic static wire assembly 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 tubes are coated with a thermal insulation material, and then a heat reflective material. The optical fibers are randomly arranged within the tubes in such a way that tensile stresses on the cable are not transmitted to them. 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.
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