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 winding for a linear motor, which winding has three electrical cables arranged in grooves of an elongated inductor. The three electrical cables have an electrically conductive sheath and an electrically conductive intermediate layer arranged between the sheath and an outer conductive layer. At least one metal strand of an electrically highly conductive material that has electrically highly conductive contact with the conductive sheath of the cables and serves as a grounding conductor is present over the whole length of a stator. The stator includes the inductor and the three cables, which are connected to form a three-phase winding. The intermediate layer is formed from nonwoven material that has a thickness of about 300 ?m-600 ?m and an electrical resistance of about 150 ?/m-500 ?/m. The value of the electrical resistance of the intermediate layer is greater than the corresponding resistance value of the strand used as the grounding conductor.

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.