Волоконно-оптический кабель

Description The fibers,either of single-mode or multimode type,are positioned in a loose tube made of a high modulus plastic.The tubes are filled with a water-resistant filling compound.A steel wire sometimes sheathed with polyethyene (PE) for cable with high fiber count, locates in the center of core as a metallic strength member. Tubes (and fillers)are stranded around the strength member into a compact and circular cable core.An Aluminum Polyethylene Laminate (APL) is applied around the cable core,which is filled with the filling compound to protect it form water-ingress.Then,the cable is completed with a PE sheath. Characteristics 1. Accurate fiber excess length ensures good mechanical and temperature performance 2. High strength loose tube that is hydrolysis resistant and special tube filling compound ensure a critical protection of fiber 3. Specially designed compact struture is good at preventing loose tubes form shrinking 4. The following measures are taken to ensure the cable watertight: Steel wire used as the central strength member Loose tube filling compound 100% cable core filling APL moisture barrier