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).