Abstract: A plug-in coupling for connecting a first to a second double-walled, vacuum-insulated cryogenic line includes a coupling plug and a coupling socket. The coupling plug has an inner and an outer pipe piece and a first connecting flange and is connected to the first cryogenic line. The coupling socket has an inner and an outer pipe piece and a second connecting flange and is connected to the second cryogenic line. In an assembled state of the plug-in coupling, the coupling plug has been plugged into an open annular gap in the coupling socket. The annular gap is surrounded both at its inner circumference and at its outer circumference by an insulating vacuum, whereby the thermal insulation of the plug-in coupling is improved. This construction makes possible a shorter design of the plug-in coupling, which, while achieving good thermal insulation, is space-saving and easy to handle.

Abstract: An optical temperature sensor head having an optical fibre and a sensor material, which is optically connected to a free end of the optical fibre. The free end of the optical fibre has an overmould made of a plastics material, which engages over a free end of the optical fibre and forms a protective body. A transparent window is arranged in the protective body. The window permits an optical connection with the free end of the optical fibre. Luminescence radiation from a sensor material can enter the optical fibre. The protective body has the effect that the temperature sensor head is mechanically stable and is insensitive to environmental influences. A temperature sensor device having such a temperature sensor head. An electric machine having a winding with a winding wire, which is connected to a proposed temperature sensor head.

Abstract: A process is provided for the continuous production of thin-walled, radially closed hollow profiles composed of nonferrous metals and having a small cross section comprises supply of a flat strip of the metal to a forming apparatus at a first supply speed, the thickness of the strip corresponding to the wall thickness of the hollow profile. The forming apparatus continuous forms the flat strip into a shape corresponding to the hollow profile. After forming, two opposite edges of the flat strip rest flush against one another in a contact region and are continuously welded by means of a laser which emits light having a wavelength of less than 600 nm. The laser heats an area in a welding region having a diameter of less than 20% of the cross-sectional dimension of the hollow profile. The welded hollow profile is taken off from the welding region and taken up in an uptake device.

Abstract: A system and method for degassing cables, such as e.g. High-Voltage Alternative Current (HVAC) or High-Voltage Direct Current (HVDC) cables, where the system has a reel having a perforated cylinder wall and sealing elements adapted to seal off the inner space of the reel, a gas duct in fluid connection with the inner space, and a source of pressurised and heated gas fluidly connected to the gas duct. The method incudes winding a cable onto the reel and blow heated and pressurised gas into the inner space of the reel/cylinder.

Abstract: A method and system for determining deformation in a cable, where a sensing optical fiber arrangement is applied along the cable. The method includes injecting a forward pulse pump signal in the optical fiber in a forward direction of the optical fiber and injecting a reverse probe signal in the optical fiber in a reverse direction of the optical fiber. A stimulated Brillouin backscattering is measured and, based on the Brillouin backscattering measurement, information is provided about a deformation of the cable. The forward pulse pump signal is provided as a sum of a stationary signal component and an interrogation pulse component, the stationary signal component has an energy below a Brillouin activation level and the interrogation pulse signal component has an energy which results in that the sum of the stationary signal component and the interrogation pulse signal component exceeds the Brillouin activation level.

Abstract: A cable assembly (100) having a first cable (20) having a first conductor (22), a second cable (40) having a second conductor (42) and an electrically conducting joining element (60). The joining element (60) has a first opening (61) and a second opening (63). The cable assembly (100) comprises a number of canted coil springs (70). A terminal portion of the first conductor (22) is secured to the first opening (61) by means of a first canted coil spring (70). A terminal portion of the second conductor (42) is secured to the second opening (63) by means of a second canted coiled spring (70).

Abstract: The present invention relates to a process for manufacturing a composite material comprising a non-pulverulent carbon-based conductive material and metal nanoparticles dispersed within said non-pulverulent carbon-based conductive material, to said composite material, to the use of the composite material for manufacturing an electrically conductive element, and to an electric cable comprising at least one such composite material, as electrically conductive element.

Abstract: A cable is provided having at least one elongated conductor surrounded by at least one cross-linked layer, said layer being obtained from a polymer composition comprising a polymer, a crosslinking agent, and an amine as co-crosslinking agent, wherein said amine has a nucleophilic value (N) of 14 or more.

Abstract: A water blocking layer/sheathing for subsea power cables made from a CuNiSi-alloy.

Abstract: A plug-in coupling has a coupling plug and a coupling socket. The coupling plug has an inner and an outer pipe piece and a first attachment flange and is connected to the first cryogenic line. The coupling socket has an inner and an outer pipe piece and a second attachment flange and is connected to the second cryogenic line. A circular annular seal on the distal end of the coupling plug is of electrically insulating form. An insulating sleeve is arranged on the outer pipe piece of the coupling plug. An insulating disc is situated between the first and the second attachment flange when the coupling plug has been inserted into the coupling socket. The plug-in coupling realizes a galvanic is separation between the coupling plug and the coupling socket.

Abstract: An electric cable has at least one elongated electrical conductor (1), at least one electrically insulating layer (2) surrounding the elongated electrical conductor (1), and at least one metal layer (3) surrounding electrically insulating layer (2). The metal layer (3) has metal nanowires.

Abstract: A method for the continuous production of a thin-walled, perforated metal hollow profile with one or more fibre waveguides mounted therein. The method includes supplying of a flat metal strip at a first supply rate to a deforming device, which continuously deforms the metal strip into a metal hollow profile with a slot running in a longitudinal direction. Two opposite edges of the metal strip deformed into the metal hollow profile that lie flush against one another in a contact region extending in the longitudinal direction of the metal hollow profile are continuously welded to one another, drawn off from the welding region and perforated.

Abstract: A method for localizing a short circuit between a conductor and an electrically conductive shield of a high-voltage cable comprises providing at least two measuring apparatuses arranged at the high-voltage cable at a known distance from one another and having timers, synchronized with one another, and a measuring device for detecting an electric current flowing in the shield and/or an earthing line connecting the shield and earth. The measuring apparatus transmits pairs of current measurement values and associated values of the timer to an analysis unit, which, upon the occurrence of a current exceeding a threshold value and/or of a current profile over time that satisfies specific stipulations, feeds to a calculation unit the associated values of the timers and also an indication about the location of the measurement, for which first effects of the short circuit occurred.

Abstract: A process for the continuous production of thin-walled, radially closed hollow profiles which are composed of nonferrous metals and have a small cross section comprises supply of a flat strip of the nonferrous metal to a forming apparatus (212) at a first supply speed, where the thickness of the strip corresponds to the wall thickness of the hollow profile. The forming apparatus (212) is configured for continuous forming of the flat strip supplied into a shape corresponding to the hollow profile. After forming, two opposite edges of the flat strip rest flush against one another in a contact region. A welding apparatus (216) continuously welds the edges which rest flush against one another by means of a laser which emits light having a wavelength of less than 600 nm. The laser heats a point in a welding region which has a diameter which is less than 20% of the cross-sectional dimension of the hollow profile.

Abstract: A method for manufacturing a sheathing of a cable and a sheathing for a cable is provided where the method includes forming the cable sheathing by extrusion and the sheathing is made of a Pb—Ca—Sn alloy having a composition having from 0.03 to 0.05 weight % Ca and from 0.4 to 0.8 weight % Sn.

Abstract: A plug-in coupling for connecting a first double-walled vacuum-insulated cryogenic line to a second. The plug-in coupling has a coupling plug and a coupling socket. The coupling plug can be plugged into the coupling socket, these being retained in a plugged-together state by fixing means. A guide column is arranged on the coupling plug or the coupling socket. The guide column has arranged on it elastic means which, in the assembled state of the plug-in coupling, are subjected to stressing and which subject the coupling plug and/or coupling socket to an elastic force which strives to release the coupling plug and coupling socket from one another as soon as the fixing means no longer hold the coupling plug and coupling socket together. The elastic energy stored in the elastic means ensures that, in the event of an emergency, the coupling plug and coupling socket are quickly released from one another.

Abstract: A polymer composition is provided with improved stress whitening resistance, having at least one thermoplastic polymer material and a dielectric liquid. A process for preparing the polymer composition, a cable having at least one electrically insulating layer obtained from the polymer composition, and a process for preparing the cable are also provided.

Abstract: A high-voltage cable sealing end (100) has a primary volume (102) and a secondary volume (104) fluidically connected thereto, which are filled with an insulating fluid. The primary volume (102) and the secondary volume (104) are sealed with respect to the atmosphere surrounding the high-voltage cable sealing end (100). The secondary volume (104) can be disconnected from the primary volume (102) via a separable connection (106) which can be cut off in a fluid-tight manner. A drying agent, which draws moisture out of the insulating fluid, is introduced into the secondary volume (104).

Abstract: A data transmission connector (103) has a housing (30) and a plurality of data transfer plug contacts (32) that are rigid and are arranged fixedly inside the connector (103).

Abstract: An arrangement for wireless transmission of electrical signals in a motor vehicle maintains a cassette equipped with a stator (3) and a rotor (4) rotatably mounted in the stator (3) is arranged on the steering wheel of the motor vehicle, where the cassette has at least one electrical line extending in windings mounted between stator and rotor. The stator of the cassette is connected to the steering column, while the rotor is connected to the steering wheel. The transmitter (6) is arranged in the immediate vicinity of the stator (3) of the cassette and the receiver (7) is mechanically connected to the rotor (4) of the cassette and electrically to at least one electrical line (9) with a display (8) for displaying received signals.