Reinforced structure for a cable or duct with high compression resistance

摘要

A cable or duct having high compression resistance to external pressure while maximizing the space available for the optical fibers or wires therein. The optical fiber cable (10) or duct includes an outer jacket (12) having a substantially tubular shape, a compression resistant core member (16) disposed longitudinally in the outer shell and a central strength member (14) extending through the compression resistant core member. The core member includes a plurality of Y-shaped rib members (18) extending radially therefrom to the outer shell. A plurality of cavities are defined between the rib members for receiving the optical fibers (22). The Y-like shape of the reinforcement ribs maximizes the compressive strength of the cable while minimizing the amount of material used for the reinforcement member. Thus, there is more space for the optical fibers in the cable or more cables in the duct.