Abstract: The invention relates to an electric conductor (L), made of an electrically conductive material comprising aluminum. The electric conductor is surrounded at least in a region intended for the connection of an electric contact element by a protective layer (3) serving the corrosion protection. The conductive material (2) is formed around a steel wire (1) having a diameter between 0.05 mm and 0.2 mm and a fracture strength of at least 1000 N/mm2 and having such a wall thickness that a conductor (L) having a diameter between 0.10 mm and 0.40 mm is obtained, onto which the protective layer (3) is applied having a thickness of at least 0.5 ?m.

Abstract: An electrical line for the connection of non-stationary electrical loads to a power source is specified which has a line core surrounded by a jacket (8) of insulating material. Four wires (1), stranded together to form one star quad (S), for the transmission of data, and also two wires (2) stranded together to form a pair of wires (A) and used for supplying power are placed in the line core. The star quad (S) and the pair of wires (A) are stranded together as stranding elements for forming the line core and, over the same, a layer (5) of insulating material is placed, over which a braid or a stranded cover layer of copper wires is arranged in a first layer (6) as part of an electrical screen. At least one layer of a fleece material consisting of synthetic material and made electrically conductive is placed over the first layer (6) as second layer (7) of the electrical screen and the fleece material is surrounded by the jacket (8) of insulating material.

Abstract: An electrical line for the connection of non-stationary electrical loads to a power source is specified which has a line core surrounded by a jacket (8) of insulating material. Four wires (1), stranded together to form one star quad (S), for the transmission of data, and also two wires (2) stranded together to form a pair of wires (A) and used for supplying power are placed in the line core. The star quad (S) and the pair of wires (A) are stranded together as stranding elements for forming the line core and, over the same, a layer (5) of insulating material is placed, over which a braid or a stranded cover layer of copper wires is arranged in a first layer (6) as part of an electrical screen. At least one layer of a fleece material consisting of synthetic material and made electrically conductive is placed over the first layer (6) as second layer (7) of the electrical screen and the fleece material is surrounded by the jacket (8) of insulating material.

Abstract: An electrical conductor L is specified, which has a central core (1) and at least two layers which are arranged above the core (1) and are composed of electrically conductive individual wires, which are twisted around the core (1) in a first layer (2) and around the first layer (2) in a second layer (4). The individual wires of the first layer (2) are steel wires with an ultimate tensile strength of between 800 N/mm2 and 2000 N/mm2, and the individual wires of the second layer (4) are copper wires with an ultimate tensile strength of between 250 N/mm2 and 400 N/mm2. A wire composed of a soft-annealed copper with an ultimate tensile strength of at least 210 N/mm2 is used as the core (1). The lay length of the copper wires (5) is between 8×D and 18×D where D is the diameter of the conductor L over the second layer.

Abstract: A flexible electrical cable having a centre part surrounded by a sheath (16) made of insulating material is specified in which are arranged at least one data pair (DP) consisting of two data cores (1, 2) which are used for data transmission and are surrounded by a common screen containing a metallized synthetic fleece, and at least one supply core (VA) which is used for supplying power, which are surrounded by a common electrical screen (15). In the centre part, at least two screened data pairs (DP) with data cores (1, 2) running parallel to one another are arranged separately from one another, the screen of which has a synthetic-material-clad metal foil (5) surrounding said screen on all sides, the metal side of which faces outwards, over which the metallized synthetic fleece (6) is arranged in contact with the metal side.

Abstract: The invention relates to an electric conductor (L), made of an electrically conductive material comprising aluminum. The electric conductor is surrounded at least in a region intended for the connection of an electric contact element by a protective layer (3) serving the corrosion protection. The conductive material (2) is formed around a steel wire (1) having a diameter between 0.05 mm and 0.2 mm and a fracture strength of at least 1000 N/mm2 and having such a wall thickness that a conductor (L) having a diameter between 0.10 mm and 0.40 mm is obtained, onto which the protective layer (3) is applied having a thickness of at least 0.5 ?m.

Abstract: An electrical conductor L is specified, which has a central core (1) and at least two layers which are arranged above the core (1) and are composed of electrically conductive individual wires, which are twisted around the core (1) in a first layer (2) and around the first layer (2) in a second layer (4). The individual wires of the first layer (2) are steel wires with an ultimate tensile strength of between 800 N/mm2 and 2000 N/mm2, and the individual wires of the second layer (4) are copper wires with an ultimate tensile strength of between 250 N/mm2 and 400 N/mm2. A wire composed of a soft-annealed copper with an ultimate tensile strength of at least 210 N/mm2 is used as the core (1). The lay length of the copper wires (5) is between 8×D and 18×D where D is the diameter of the conductor L over the second layer.

Abstract: The invention specifies an electrical cable with at least two electrical conductor cores (1), which are stranded together, and each of which consists of an electrical conductor (3) enclosed in insulation (2), and with a sheath (5) of insulating material that encloses the conductor cores (1). To protect the cable, which in itself is fully functional, from red-hot particles, the sheath (5), which has a wall thickness of at least 0.5 mm, is covered with a barrier in the form of a flameproof strip (6), which is wound in at least one course with overlapping edges. The strip (6) is covered with a layer (7) of a material that swells when exposed to moisture and that is surrounded by an outer sheath (8) of insulating material.

Abstract: An abrasion-resistant jacket for a flexible cable with a cable core and a jacket made of an abrasion-resistant thermoplastic material surrounding the cable core, particularly for a drag chain cable or a robot cable. The jacket includes an inner extruded plastic layer (2) and an outer jacket layer (4). Between the inner plastic layer (2) and the outer jacket layer (4) is a layer (3) of monofilaments made of a chemically and thermally stable material with a visual coverage of 40 to 70%. The outer jacket layer (4) is applied by pressure extrusion, such that the spaces in the layer (3) are almost filled by the material of the outer jacket layer, and the layer (3) adheres to the inner sheath layer (2).

Abstract: A data transmission cable for connection to mobile devices, which has at least two insulated conductors (1, 2) twisted together into a pair. The pair is enclosed by an electric shield (7) over which a jacket (13) made of an insulating material is applied. To preserve the function of the cable even if it is subject to frequently alternating bending and torsional stresses, the two conductors (1, 2) insulated with a solid unfoamed material are twisted together with two first strands (4, 5) made of a foamed insulating material to form a core (S). The core (S) is enclosed by a foil (6) made of a foamed insulating material, and the shield (7) formed around the first foil (6) has at least one metal strip that is made of an electrically well-conducting material and is formed into a closed tubular sleeve.

Abstract: A cable with at least one transmission element (A), which is surrounded by a sheath (M) of insulation material. To simplify stripping of the insulation, the sheath (M) is composed of an inner layer (3) and an outer layer (4), which are firmly bonded together. The values for tensile strength and elongation at break of the inner layer (3) are designed to be clearly lower than those of the outer layer (4).

Abstract: An abrasion-resistant jacket for a flexible cable with a cable core and a jacket made of an abrasion-resistant thermoplastic material surrounding the cable core, particularly for a drag chain cable or a robot cable. The jacket includes an inner extruded plastic layer (2) and an outer jacket layer (4). Between the inner plastic layer (2) and the outer jacket layer (4) is a layer (3) of monofilaments made of a chemically and thermally stable material with a visual coverage of 40 to 70%. The outer jacket layer (4) is applied by pressure extrusion, such that the spaces in the layer (3) are almost filled by the material of the outer jacket layer, and the layer (3) adheres to the inner sheath layer (2).

Abstract: A data transmission cable for connection to mobile devices, which has at least two insulated conductors (1, 2) twisted together into a pair. The pair is enclosed by an electric shield (7) over which a jacket (13) made of an insulating material is applied. To preserve the function of the cable even if it is subject to frequently alternating bending and torsional stresses, the two conductors (1, 2) insulated with a solid unfoamed material are twisted together with two first strands (4, 5) made of a foamed insulating material to form a core (S). The core (S) is enclosed by a foil (6) made of a foamed insulating material, and the shield (7) formed around the first foil (6) has at least one metal strip that is made of an electrically well-conducting material and is formed into a closed tubular sleeve.

Abstract: An electrical cable (K) has at least two strands (1) consisting of insulated conductors (2) stranded together. Insulation on the strands (1) consists of an inner layer in contact with the conductor, and which is softer than an outer layer. The strands (1) are surrounded by an inner sheathing (6). The cable (K) also has an electric shield (7) and an outer sheathing (8). A separator layer (5) is between the strands (1) and the inner sheathing (6), consisting of an inner layer (6a, 6b) fixedly joined together with an outer layer (6b). The inner layer (6a) facing the strands (1) is softer than the outer layer (6b), having an approximately circular peripheral surface and in firm contact with the separator layer (5) or the strands (1). The electric shield (7) consists of at least one essentially closed tubular metallic layer and a stranded layer and/or braiding of metallic wires in contact with the metallic layer.

Abstract: The invention relates to an electrical line (L) having at least one electrical conductor (1) enclosed by temperature-resistant insulation (2) which ensures the functionality of the line (1) in case of fire. To minimize the fire load of the line (1), the insulation (2) comprises at least one multifilament thread (3) made of glass which is wound around the conductor (1) and whose windings are contiguous so as to create a completely closed sleeve (4) for the conductor (1). A thin protective layer (5) of a halogen-free, temperature-resistant insulation material is applied all over the sleeve (4).

Abstract: An electrical cable (K) has at least two strands (1) consisting of insulated conductors (2) stranded together. Insulation on the strands (1) consists of an inner layer in contact with the conductor, and which is softer than an outer layer. The strands (1) are surrounded by an inner sheathing (6). The cable (K) also has an electric shield (7) and an outer sheathing (8). A separator layer (5) is between the strands (1) and the inner sheathing (6), consisting of an inner layer (6a, 6b) fixedly joined together with an outer layer (6b). The inner layer (6a) facing the strands (1) is softer than the outer layer (6b), having an approximately circular peripheral surface and in firm contact with the separator layer (5) or the strands (1). The electric shield (7) consists of at least one essentially closed tubular metallic layer and a stranded layer and/or braiding of metallic wires in contact with the metallic layer.

Abstract: The invention relates to an electrical line (L) having at least one electrical conductor (1) enclosed by temperature-resistant insulation (2) which ensures the functionality of the line (1) in case of fire. To minimize the fire load of the line (1), the insulation (2) comprises at least one multifilament thread (3) made of glass which is wound around the conductor (1) and whose windings are contiguous so as to create a completely closed sleeve (4) for the conductor (1). A thin protective layer (5) of a halogen-free, temperature-resistant insulation material is applied all over the sleeve (4).

Abstract: A flexible electric cable, in particular a robotic cable, having a core and a sheathing surrounding the core made of plastic. The core contains at least one energy line or power line (1), at least one line (2, 3) for transmitting high-frequency signals, at least one line for transmitting low-frequency signals, or a control line (4).

Abstract: A cable with at least one transmission element (A), which is surrounded by a sheath (M) of insulation material. To simplify stripping of the insulation, the sheath (M) is composed of an inner layer (3) and an outer layer (4), which are firmly bonded together. The values for tensile strength and elongation at break of the inner layer (3) are designed to be clearly lower than those of the outer layer (4).

Abstract: An optical cable element (5) includes several optical fibers (1) arranged concentrically around a central thread (3) and surrounded by a common envelope (4). The envelope (4) is made of a plastic which adheres to the optical fibers (1), so that after the cable element (5) has been slit open along its longitudinal axis, the round cable element is transformable into a ribbon element in the slit area, which facilitates multiple splicing. Also disclosed are a multiple-fiber tube unit and optical cables containing several such cable elements.