EXTERIOR INSTALLATION OF ARMORED FIBER OPTIC CABLE

摘要

An armored fiber optic cable 10 can be installed in channel 3, excavated in a roadway or other paved surface by a laying unit 1 including a cutting wheel 2. The armored fiber optic cable includes optical fibers 11 located within a cylindrical thermoplastic inner jacket 13. An armor layer or jacket 12 surrounds this inner jacket, and an outer barrier jacket 14 extends around this armor jacket. This armored fiber optic cable 10 need not be disposed in a tube or pipe, and mid-span access to the optical fibers 11 can be readily obtained by removing a section of the armored jacket 12. The armor jacket 12 can be joined to the inner jacket 13, fabricated from a thermoplastic material, to limit longitudinal contraction due to thermal contraction and bucking of the optical fibers 11.