The structure underground duct GTYA fiber optic cable is that the single-mode optical fiber is sheathed in a loose tube made of high modulus plastic, and the tube is filled with a water blocking compound. The center of the cable core is a metal steel wire as central strength member to make the fiber high with higher tensile force. A layer of polyethylene needs to be extruded outside the metal reinforced core, and the loose tube (and filler rope) is twisted around the central reinforced core to form a compact and circular cable core, the gaps in the cable core are filled with water blocking fillers.
The multi-unit twisted structure of GYTA optical cable increases the density of the optical fiber, so that the optic cable has better mechanical and environmental performance. The corrugated steel tape armor layer of the optical cable enhances the side pressure, bulletproof and moisture-proof performance of the optic cable.
Occasions with high requirements for anti-side pressure, such as overhead mode
No. of cable
Central Strength Member
The Max.Core NO./Tube
Water Blocking layer（Material）
Min. bending radius
Under Maximum Tension