MGTS cable, the fibers, 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 ber count, locates in the center of core as a metalic strength member. Tubes (and fillers) are stranded around the strength member into a compact and circular cable core. The PSP is longitudinally applied over the cable core, which is lled with the filling compound to protect it from water ingress. The cable is completed with aa me-retardant sheath.