Abstract: A superconductor cable is described, having a superconductive flexible cable core (1) , which is laid in a cryostat (2, 3, 4), in which the cable core (1) runs in the cryostat (2, 3, 4) in the form of a wave or helix at room temperature.

Abstract: The present invention is directed to a superconductor component 1 suitable as fault current limiter comprising a superconductor body 2 provided with a shunt coil 3 and an electrical contact 4 on at least one end of the superconductor body 2 wherein the superconductor component 2 is provided with means for reducing currents 6 induced within the electrical contacts 4.

Abstract: The present invention is directed to a superconducting current limiting component, particularly to a ceramic high temperature superconducting current limiting component which is self triggering, comprising a coil (1) made of ceramic high temperature superconductor material, wherein around the outer surface of the coil (1) made of ceramic high temperature superconductor material a second coil (3) is applied as a shunt and, preferably, wherein the coil (1) made of ceramic high temperature superconductor material is applied onto a hollow cylindrical body (2) made of a ceramic high temperature superconductor material.

Abstract: A power transmission conductor, in particular for overhead electric lines, and including at least one central composite core made up of continuous fibers impregnated by a thermosetting resin matrix, the core being coated by at least one layer of insulating material, with aluminum or aluminum alloy conductor wires being wound around the core. The conductor comprises a short-circuiting device for short-circuiting said fibers with said conductor wires.

Abstract: An arrangement for monitoring the leak-tightness of an evacuated space which is hermetically closed, leak-tight, by means of at least one metallic wall is specified. A device which is connected to the evacuated space indicates an inadmissible pressure rise in the evacuated space caused by a leak in the wall. The device includes a metallic bellows, which is hermetically connected, leak-tight, to the evacuated space, and an electrical proximity switch to which an evaluation unit is connected. The proximity switch (7) is mounted, in the direction of movement of the bellows (5), at a distance from the end face of the latter, the size of which is varied as a function of the respective axial length of the bellows (5). A tube (9) connected fixedly to the wall (2) is mounted around the bellows (5), so as to maintain an air gap, surrounds the bellows (5) in a moisture-tight manner and is longer than the bellows (5) in its longest initial position corresponding to the expanded state.

Abstract: A line pipe for the transport of deep-frozen media, consisting of at least two corrugated metal pipes (2, 4) arranged concentrically and at a distance from one another, an insulation layer (3) being arranged in the annular gap between the two metal pipes (2, 4), the annular gap being evacuated, and a closing valve (10) provided in the outer metal pipe (4) being connectable to a vacuum pump, the closing valve being welded, vacuum-tight, into a smooth-walled metal pipe (9) welded, vacuum-tight, to the exterior of the metal pipes (4). The valve body (10) of the closing valve projects into the interior of the smooth-walled metal pipe (9) and is flush with the outer surface area of the smooth-walled metal pipe (9).

Abstract: The invention relates to a synthetic material end for a DC electric cable. In the invention, the synthetic material end includes a composite insert that is placed between the inner insulator and the outer insulating sleeve of the cable, the insert generally being in the form of a sheath surrounding the inner insulator over a partially-stripped portion of the cable, and being made up of a resistive portion of high resistivity, and of a semi-conductive portion of lower resistivity, the interface between said resistive and semi-conductive portions forming a deflector, the end of the resistive portion that is remote from the deflector being electrically connected to the central conductor of the cable, and the end of the semi-conductive portion that is remote from the deflector being electrically connected to the outer semi-conductor of the cable. Application to making connections to high-voltage electric cables.

Abstract: A fiber cable having a first fiber containing portion with a plurality of optional fibers disposed therein. A second strength portion is separable from the first fiber containing portion arranged in a substantially flat arrangement. The second strength portion is separatably coupled to the first fiber containing portion.

Abstract: The present invention relates to a helically-wound electric cable comprising at least two groups that are wound-together so as to form a group helix, each group comprising at least two twisted-together conductor wires. In the cable of the invention, the pitch of the group helix varies along the helically-wound electric cable between two limit values having the same sign.

Abstract: A fiber cable having at least one fiber optic element, a water swellable powder, disposed on the fiber optic element and a tube surrounding the fiber element and the water swellable powder. The fiber optic element is in a loose non-coupled arrangement with respect to the inside of the tube such that during installation, mechanical installation stresses applied to the cable and the tube are not imparted to the fiber optic element therein.

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 method of cross-linking a composition comprising firstly a polyethylene-based silane-grafted polymer, and secondly a filler. The invention is remarkable in that the cross-linking method consists in mixing the composition with a condensation catalyst constituted by lauryl stannoxane of formula [(C4H9)2Sn(OOCC11H23)]2O.

Abstract: A foaming composition includes a fluoropolymer, a nucleating agent and a pigment, wherein said pigment is a manganese-antimony-titanium (Mn—Sb—Ti) oxide pigment.

Abstract: A superconductor cable includes a superconductive cable core (1) and a cryostat (2) enclosing the same. The cable core (1) has a superconductive conductor (3), an insulation (4) surrounding the same and a shielding (5) surrounding the insulation (4). A layer (3b) of a dielectric or semiconducting material is applied to a central element (3a) formed from a normally conducting material as a strand or tube and a layer (3c) of at least one wire or strip of superconductive material is placed helically on top. The central element (3a) and the layer (3c) are connected to each other in an electrically conducting manner at the ends of the cable core (1).

Abstract: An electric submarine power cable, in particular for use in hydrocarbon pipeline heating systems and adapted to be installed as a piggyback cable on the pipelines, having a multi-wire stranded conductive core with an outer insulation and at least one outer protective sheath as well as armoring means. The armoring means are incorporated in the conductive core as integral tensile strength wire elements. Moreover, a hydrocarbon pipeline heating system as such, having this submarine power cable.

Abstract: A method is provided for producing a superconductive electrical conductor, in which a layer of an yttrium-barium-copper oxide (YBCO) is applied as a superconductive material onto a textured metal substrate, and is subjected to a heat treatment. In order to produce a wire-shaped conductor, a textured metal substrate, provided as a strip (2), is initially shaped in its longitudinal direction around an elongate metal support (1) with a circular cross section to form a slotted tube (3) having edges extending in the longitudinal direction and adjoining one another at a slot (4). The slotted tube (3) is next closed by welding the slot (4) shut, and the closed tube (9) is then contracted by pulling until it bears on the support (1). The layer (12) of superconductive YBCO material is thereupon applied all around, and the heat treatment is finally carried out.

Abstract: An optical fiber cable maintains an outer jacket, at least one optical fiber tube within the jacket and for each optical fiber tube, four optical fibers, arranged in a substantially squared arrangement. The optical fibers are linearly arranged along the length of the cable. The optical fibers are loosely arranged within the fiber tube in such a manner as to allow shifting of the straight optical fibers to conform to a bending of the cable, while being simultaneously constrained such that the straight arranged fibers do not become crossed-over or overlapped during bending.

Abstract: A terminal structure (2) for a superconducting cable (1) is described. It consists of a conductor (2a) and an insulator (2b) that surrounds the conductor (2a), wherein the superconducting cable (1) has a core with a superconducting conductor (5) and a layer of insulation that surrounds the conductor (5), and wherein the core is arranged in such a way that it can move longitudinally in a cryostat. The conductor (2a) of the terminal structure (2) is electrically connected with the superconducting conductor (5) or with a normal conductor (6) that is connected with the superconducting conductor (5) by means of a tubular part (7) made of an electrically conductive material, wherein the superconducting conductor (5) or the normal conductor (6) can slide in the part (7) in the direction of the superconductor.

Abstract: Umbilical device, where the device has a longitudinal axis (x), and includes at least one elongated electrical cable or tube element; and an elongated load bearing component along the longitudinal axis (x) and having an external surface including at least one groove disposed along the longitudinal axis (x) and parallel thereof. The component includes a central core encompassed by a plastic or elastic layer, which is provided with the at least one groove, where the groove is designed for holding the cable or tube element within it, while allowing the cable or tube element to move substantially radially in the groove when the umbilical is bent and that the layer is made from several plastic or elastic elements.

Abstract: An electrical connection line (L) for an electrical unit of a motor vehicle, which electrical connection line serves to electrically connect the unit to an electrical power source which is arranged in the motor vehicle and/or to another electrical unit. The connection line (L) is designed as a three-phase line with three insulated electrical conductors (1, 2, 3), of which each has an electrical individual sheath (5) which is in contact with its insulation means (4) and is closed all the way around. An electrical outer sheath (7) which surrounds the three sheathed conductors (1, 2, 3) and is closed all the way around is also provided and a coupling element which is equipped with electrical contacts which are insulated from one another is fitted at least to one end of the connection line (L) in a moisture-tight manner, and the electrical conductors (1, 2, 3), their individual sheaths (5) and the outer sheath (7) are electrically conductively connected to the contacts of the said coupling element.