Abstract: A shear screw has predetermined breaking points in two planes, separated axially from one another, and it has centrally a blind hole extending over a substantial length and having a cross section which is suitable for transmitting a torque to the shear screw by means of a pin-like tool of adapted dimensions which can be inserted into the blind hole. The blind hole extends to about level with the predetermined breaking point which is arranged in the lower region, facing the end face of the shear screw, of the latter and has a strength greater than that of the other predetermined breaking point.

Abstract: An umbilical for subsea installation has a core of at least two longitudinal elements like cables, tubes and solid and/or hollow filling elements and a cover surrounding the core. At least one of the hollow filling elements is provided with several perforations and the cover is permeable for sea water, thereby allowing seawater to fill the interior of the filler elements as well as the interstices between the cable, tube and the filler elements and the cover when the umbilical is submerged.

Abstract: The present invention relates to a liquid silicone elastomer composition comprising an unsaturated polyorganosiloxane having at least two unsaturated bonds, a hydrogenopolyorganosiloxane having at least two silicon-hydrogen bonds, a hydrosilylation catalyst, and silica. The invention is remarkable in that the composition further comprises an unsaturated organic polymer having at least two unsaturated bonds, and a cross-linking agent specific to said unsaturated organic polymer.

Abstract: A method is specified for production of a superconducting electrical conductor which has a ceramic material as the superconducting material. A metal ribbon is formed around a multiplicity of flat strips of a mount which is coated with the superconducting ceramic material, running longitudinally to form a tube having a slot which runs in the longitudinal direction, and whose edges which rest on one another on the slot are welded to one another The tube which is closed by the welding process is then reduced to a diameter which corresponds approximately to the envelopes of all the strips which are located in the tube.

Abstract: A loose tube fiber optic cable having at least one optical fiber, a loose tube surrounding the fiber, with the tube having an irregular inner surface. A water swellable powder is provided around the fiber and inside the tube, where the particles of the water swellable powder rest in the irregular inner surface of the tube.

Abstract: A flexible conduit pipe for transporting fluids is specified, which consists of two corrugated metallic tubes, an inner tube (1) and an outer tube (2), which are arranged concentrically to one another and are separated from one another by an encircling annular space in which a spacing means is arranged. The spacing means consists of a plurality of rings (4,5) which bear with a basic body (6) against inner tube (1) and outer tube (2) and are arranged at an axial distance from one another in the annular space (3). The rings (4,5) have on their inner circumferential surface a rib (7) which extends in the circumferential direction, corresponds to the corrugation of the inner tube (1) and engages in a respective corrugation trough of the inner tube (1).

Abstract: An arrangement for an electrically conducting connection of a superconductive electric cable with a cable having normal conductivity at room temperature is provided, which includes a passage with an electric conductor surrounded by a thermal insulation. The conductor of the superconductive cable is connected to an end of the conductor of the passage, at whose other end a cable having normal conductivity can be connected. On the end of the superconductive cable intended to connect to the conductor of the passage an electrode is mounted serving the electric field control. At least in the area of the electrode a cryostat is present which surrounds it, which is constructed as a circumferentially closed sheath of electrically insulating material with a vacuum free, thermal insulation. The end of the sheath facing the passage is placed during the state of operation of the arrangement at high voltage potential, while the other end is connected to ground potential.

Abstract: A connection arrangement for connecting together two superconductor cables, each having a central conductor comprising at least one superconductive part, a dielectric layer surrounding said central conductor, a shield surrounding said dielectric layer and a cryogenic enclosure surrounding said shield, the connection arrangement has an electrical splicing device for splicing together the central conductors and stripped dielectric layers of the corresponding shields. This connection arrangement has a covering made of semi-conductive material that is placed between the two shield ends and an electrical connection device for connecting together the two shield ends, the connection device surrounding the covering, being contained in the cryogenic enclosure, and comprising two junction elements each electrically and mechanically joined to a respective one of the shield ends, and an electrical splicing arrangement for splicing together the two junction elements.

Abstract: The invention relates to a device for connecting two electrical conductors (4, 5), comprising a metallic clamp (1) that is designed as a pipe section and that comprises in the wall thereof at least two through holes provided with a thread for receiving clamping screws (2) provided with an external thread. In the pipe section of the clamp (1), at least one central through hole provided with a thread is furnished between the two through holes in order to receive a fixing screw (3) provided with an external thread, wherein the fixing screw has a tapered, approximately wedge-shaped tip (11), which, in the assembled position, lies rigidly against the end faces of the two conductors (4, 5) inserted into the pipe section. The tip (11) provided with an external thread is screwed into a hole (10) of the fixing screw (3) provided with an internal thread, and the external thread of the tip (1) runs opposite to the external thread of the fixing screw (3).

Abstract: A plug-in coupling for cryogenic lines is described, having at least two pipes (3, 4, 9, 10) fitted one inside the other like a male/female connection while forming an annular gap (16), in which plug-in coupling the pipes (3, 4, 9, 10) are releasably connected to one another by a flange connection (5, 11) located at their “warm” end, the annular gap (16) between the two pipes (4, 9) is sealed at the “cold” end by an annular seal (7) and at the “warm” end by an annular seal (5d) located in the region of the flange connection (5, 11), and the annular gap (16) is connected to a safety valve (13) in the region of the flange connection (5, 11).

Abstract: A modular design of a fault current limiter includes one ore more current limiting units 1 with one or more superconducting elements 2 and where standardized current limiting units 1 and standardized modular insulation housings 10 can be used for modular design of a fault current limiter.

Abstract: A stand for delivering coiled cable has first and second side elements, each of which has a wide flat base portion and a tall central column. First and second bottom braces are configured to connect the first and second side elements near the flat base portions. A third handle brace is configured to connect the first and second side elements near the tall central columns. A shaft is configured to be positioned between the first and second side elements, with the shaft configured to receive a cable spool, such that when the spool is positioned on the shaft between the first and second sides, cable from the spool may be allowed to be removed from the spool by spinning the spool on the shaft. The cable can not exit the spool and fall between the outside of the spool and the insides of the first and second side elements.

Abstract: A communication assembly has a plug connector (1) and a jack assembly (2) provided to be connected. The jack assembly has a first printed wiring board (4) having associated crosstalk compensation elements with corresponding contact elements (6), a second printed wiring board (5) and at least a first and a second pair of contact wires (3), where each of the contact wires (3) has a base (3B) supported on the second board and a opposite free end (3A). The free ends (3A) of contact wires of second printed wiring board (5) establish an electrical connection with a corresponding terminal pad of the plug connector (1) and the contact elements (6) of the first printed wiring board (22) are aligned beneath corresponding free ends (3A) of the contact wires of the second printed wiring board so that the free ends (3A) establish electrical contact with the contact elements (6) of the first printed wiring board when they are engaged by the plug connector (1).

Abstract: An arrangement is specified for current limiting having a superconducting cable (SK) which is arranged in a cryostat (KR) which has an outer wall which comprises two metallic tubes (1, 2) which are arranged concentrically with respect to one another and between which vacuum insulation (3) is incorporated. The cryostat (KR) surrounds a free space (FR) for a coolant to pass through, in which free space (FR) the superconducting cable (SK) is arranged. It also has an inner wall (IW) which surrounds a cylindrical cavity (HR) and likewise comprises two metallic tubes (4, 5) which are arranged concentrically with respect to one another, between which vacuum insulation (6) is incorporated, and which is located within the outer wall (AW) and is separated therefrom by the free space (FR). The superconducting cable (SK) which has a superconducting conductor, a dielectric surrounding the same and a superconducting screen which is arranged above the same, is wound in a helical shape around the inner wall (IW).

Abstract: Electric three-phase power cable system, include a number of individual single-core cables (1-6) extending in parallel. There is provided supporting means (40) for keeping six single-core cables (1-6) along at least a part of their length, in a substantially regular hexagonal configuration as seen in cross-section, and means (30) for feeding current in parallel and with equal distribution to respective diametrically opposite cable conductive cores (1/4, 2/5, 3/6).

Abstract: A method is specified for operation of an arrangement having at least one superconducting cable, which is surrounded by a cryostat which consists of two metallic tubes, which are arranged concentrically with respect to one another and enclose vacuum insulation between them. The cryostat surrounds not only the cable but also a cavity for a pressurized coolant to pass through. A reservoir area, which is connected to the cryostat, for the coolant is arranged at least at one end of the cryostat and a pump is used which forces the coolant into the cryostat during operation of the arrangement. A valve is arranged at least in the supply path of the coolant from the reservoir area to the cryostat, which valve is open during operation of the arrangement, is connected to at least one unit monitoring the soundness of the cryostat and is blocked when a signal which corresponds to a fault message is present from the monitoring unit, in order to interrupt the supply of the coolant to the cryostat.

Abstract: An improved electrical line comprising an electrical conductor (5) and a layer of thermoplastic material wherein the layer consists of at least one inner layer (6) and one outer layer (7) and the outer layer (7) comprises a lubricant which has migrated from the inner layer (6) into the outer layer (7).

Abstract: A composite cable includes at least two optical fiber components and at least one additional component. An irradiated crosslinked jacket surrounds the optical fiber component and the at least one additional component. A shield encloses at least the two optical fiber components within the jacket, where the shield protects the optical fibers from irradiation of the crosslinked jacket.

Abstract: A photocrosslinkable composition has polyorganosiloxane P having a viscosity of at least 10 000 mPa·s at 25° C., wherein the polyorganosiloxane P has an acrylated silicone oil as a crosslinking agent, and a photoinitiator, the chemical structure of which comprises a diaryl ketone group.

Abstract: An electrical transposed conductor is specified, which comprises two stacks (8, 9), which are located alongside one another, each comprising a plurality of flat electrical conductor elements (7) which are arranged one above the other, are isolated from one another and have a rectangular cross section. Over the entire length of the transposed conductor continuing without interruption, conductor elements of a first stack are passed by bending into the other stack and, after a predetermined distance, are passed back again into the first stack. The conductor elements (7) run in a straight line at least one of their ends over a length (L) which is adequate for simple processing.