Abstract: A composite cable to be laid by being drawn or blown into a cable tube, which has at least two insulated copper wires (1, 2) which are stranded with one another, and at least one single-fiber optical waveguide (3, 4) and a cable sheath (5). The insulation of the copper wires has an inner layer (1b, 2b) with foamed polymer and an outer layer (1c, 2c) including an unfoamed polymer (foam skin). The optical waveguide(s) (3, 4) being arranged in the stranding gaps in the insulated copper wires (1, 2) which are stranded with one another, and reinforcing elements (5a) are made from a material having a high tensile strength being embedded in the sheath (5).

Abstract: A communication cable (K) with a large number of conductor cores (2) includes insulated conductors in which the conductor cores (2) are stranded with one another to form stranded elements (1). A large number of the stranded conductor cores are combined in the cable core (8). The insulation of the conductors (3) includes an inner layer (4) of a flameproof insulating material and an outer layer (5), which includes a polyolefin. The outer layer of the insulation is produced by extrusion, and is permanently joined with the inner layer (4). A closed sheath (9) includes a metal strip applied over the cable core. The outer sheath (10) includes a non-combustible material applied over the inner sheath (9), with which it is adhesively bonded.

Abstract: The invention specifies a communication cable (K) with a large number of conductor cores (2) consisting of insulated conductors, in which the conductor cores (2) are stranded with one another to form stranded elements (1), a large number of which are combined in a cable core (8). The insulation of the conductors (3) consists of an inner layer (4) of a flameproof insulating material and an outer layer (5), which consists of a polyolefin, is produced by extrusion, and is permanently joined with the inner layer (4). A closed sheath (9) that consists of a metal strip is applied over the cable core, and the outer sheath (10), which consists of a noncombustible material, is applied over the inner sheath (9), with which it is adhesively bonded.