Rodent-resistant non-conductive optical fiber cable

Details Rodent-resistant non-conductive optical fiber cable Rodent-resistant non-conductive optical fiber cable

G - Physics

02

B

88/97

G02B 1/00 (2006.01) G02B 6/44 (2006.01)

Patent

CA 1208949

-21- RODENT-RESISTANT NON-CONDUCTIVE OPTICAL FIBER CABLE Abstract of the Disclosure There is provided a cable construction which resists attack by mammals, fowl or fish. The cable construction consists of a core containing at least one optical fiber about which there is an organic cushion layer, preferably polymeric in nature. About the cushion layer there are a pair of counter-helically wound resin-impregnated inorganic fibers to provide tensile and hoop strength. About the pair of counter-helically wound inorganic fibers there is provided one or more layer(s) of resin-impregnated inorganic fibers helically-wound to an angle greater than 60°, and preferably approaching 90°. These fibers when bitten provide needle-like projections which irritate the mammal, e.g., rodent, fowl or fish and discourage any attempt to continue to attack the cable. The cable is normally provided with an outer casing of a thermoplastic polymer for handling purposes. It may also include a layer con- taining abrasive materials which also deters attack by mammal, fowl or fish.

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