Description

　　The fibers, 250m，are positioned in a loose tube made of a high modulus plastic. The tubes are lied 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. The tubes (and fillers ) are stranded around the strength member into a compact and circular core. An aluminum Polyethylene Laminate (APL) is applied around the cable core. Then the cable core is covered with a thin flame retardant inner sheath，witch is filled with jelly to protect it from water ingress.After a corrugated steel tape armor is applied，the cable is completed with a flame-retardant 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

　　Special sheath material ensure excellent flame-retardant performance

　　Crush resistance and flexibility

　　The following measures are taken to ensure the cable watertight:

　　1.Steel wire used as the central strength member

　　2.Loose tube filling compound

　　3.100% cable core filling

　　4.APL moisture barrier

　　5.PSP enhancing moisture-proof

　　6.Water-blocking material