Optical fiber cable with protracted fire resistance, is shielded and protected by gel, metal tube, tensile fibers and fire-resistant outer sheath, to protect essential communications and data lines

摘要

The centrally-located metal tube contains the optical fiber (2) arrangement. On the metal tube (3) there is a layer of dielectric rovings (4) with high tensile strength. The outer casing (5) comprises flame resistant material.