The fibers,200/ 250μm, 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 polyethylene (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. The cable core is filled with the filling compound to protect it from water ingress, over which a thin PE inner sheath is applied. After the PSP is longitudinally applied over the inner sheath, the cable is completed with a PE outer sheath.

·Good mechanical and temperature performance
·High strength loose tube that is hydrolysis resistant
·Special tube filling compound ensure a critical protection of fiber
·Specially designed compact structure is good at preventing loose tubes from shrinking ·PE sheath protects cable from ultraviolet radiation ·Good crush tolerance,applies for duct and directly buried distribution ·To assure the water-proof function by:
   ·Single steel wire as central strength member
   ·Special tube filling compound ensure a critical protection of fiber
   ·PSP enhances the ability to avoid moisture
   ·Fully filled in the cable
   ·Good water-blocking tape prevent the sinking vertically

•GYTY53 cable complies with Standard YD/T 901-2009 as well as IEC 60794-1.