A high-voltage line for motor-vehicle high voltage includes an interior tube surrounding an interior cavity of the high-voltage line, an electrically conducting interior conductor surrounding the interior tube, an intermediate insulation surrounding the interior conductor, an electrically conducting outer conductor surrounding the intermediate insulation, and an outer insulation surrounding the outer conductor. The outer insulation, the outer conductor, the intermediate insulation, the interior conductor, and the interior tube are disposed coaxial to one another.

An object of the instant application is to provide a capacitive power transmission cable comprising at least two sets of conductive strands, the sets of strands being insulated from each other and in capacitive relationship, the one with the other; wherein the conductive strands are laid at least substantially in a multiples of six layer structure, with substantially equal numbers of strands of both sets; and wherein each layer has strands of one set alternating with strands of the other set and the strands of the respective sets have different contrasting color.

An object of the instant application is to provide a capacitive power transmission cable comprising at least two sets of conductive strands, the sets of strands being insulated from each other and in capacitive relationship, the one with the other; wherein the conductive strands are laid at least substantially in a multiples of six layer structure, with substantially equal numbers of strands of both sets; and wherein each layer has strands of one set alternating with strands of the other set and the strands of the respective sets have different contrasting color.

A superconducting device includes a superconducting cable having a plurality of superconducting tapes in a plurality of phases, including a first phase, and at least one further phase. One or more superconducting tapes of the first phase is in electrical contact with one or more superconducting tapes of the at least one further phase through at least one resistive barrier that prevents current from passing between the first phase and the at least one further phase in the absence of a voltage between one or more of the superconducting tapes of the first phase or the at least one further phase. The first phase is electrically connected in series to at least one further phase.

An electrical multi-conductor cable comprising a plug-in connector, in particular a line with a charging plug for electric vehicles. The cable has a central cable core, a number of conductors which are arranged concentrically in relation to one another in a ring around the cable core and are composed of individual wires, and in each case one insulation between the conductors. According to the invention, the contact apparatus has two clamping shell parts which, on the inner side thereof, have a plurality of receptacles which are radially stepped from one another. In each case one contact body is received in the receptacles of a clamping shell part and makes contact with one of the concentric conductors. Each contact body has a channel shape with a longitudinal extent and a curved cross-sectional profile around an associated conductor. A closure connects the clamping shell parts and fastens said clamping shell parts in the closed position, wherein the clamping shell parts coaxially hold the contact bodies and press each contact body against the respectively associated concentric conductor for contact-making purposes.

An electrical multi-conductor cable comprising a plug-in connector, in particular a line with a charging plug for electric vehicles. The cable has a central cable core, a number of conductors which are arranged concentrically in relation to one another in a ring around the cable core and are composed of individual wires, and in each case one insulation between the conductors. According to the invention, the contact apparatus has two clamping shell parts which, on the inner side thereof, have a plurality of receptacles which are radially stepped from one another. In each case one contact body is received in the receptacles of a clamping shell part and makes contact with one of the concentric conductors. Each contact body has a channel shape with a longitudinal extent and a curved cross-sectional profile around an associated conductor. A closure connects the clamping shell parts and fastens said clamping shell parts in the closed position, wherein the clamping shell parts coaxially hold the contact bodies and press each contact body against the respectively associated concentric conductor for contact-making purposes.

A coaxial cable 10 includes a hollow-core-body 1 having an integral structure of thermoplastic resin including an inner annular portion 2 that insulation-coats an inner conductor 12, a plurality of rib portions 3 that radially extend from the inner annular portion 2, and an outer annular portion 4 that is connected to outer ends of the rib portions 3; three or more gap portions 5 surrounded by the inner annular portion 2, the rib portions 3, and the outer annular portion 4; and outer side reinforcing portions 7 being formed on both sides of an outer end in the rib portion 3, in which a size ratio of a minimum value W1 of a rib width in the rib portion 3 and a maximum value W2 of the rib width in the rib portion 3 is within a range of 1:1.6 to 1:3.0.

A coaxial cable 10 includes a hollow-core-body 1 having an integral structure of thermoplastic resin including an inner annular portion 2 that insulation-coats an inner conductor 12, a plurality of rib portions 3 that radially extend from the inner annular portion 2, and an outer annular portion 4 that is connected to outer ends of the rib portions 3; three or more gap portions 5 surrounded by the inner annular portion 2, the rib portions 3, and the outer annular portion 4; and outer side reinforcing portions 7 being formed on both sides of an outer end in the rib portion 3, in which a size ratio of a minimum value W1 of a rib width in the rib portion 3 and a maximum value W2 of the rib width in the rib portion 3 is within a range of 1:1.6 to 1:3.0.

A fiber composite rod intervention cable includes a central electrical cable portion; a bonding layer; a generally unidirectional carbon fiber composite mantle layer; a protective, balanced braided fiber composite layer. The central electrical cable portion includes a generally central electrical conductor with a first cross-section conductive area; an inner insulation layer on the central electrical conductor; and a coaxial electrical conductor layer having a second cross section conductive area equal to the first cross-section conductive area. The fiber composite rod intervention cable is arranged for being injected into a well from a drum unit via an injection unit at the wellhead and may carry an intervention tool, a logging tool, a well tractor with or without an energy source.

A high-voltage line for motor-vehicle high voltage includes an interior tube surrounding an interior cavity of the high-voltage line, an electrically conducting interior conductor surrounding the interior tube, an intermediate insulation surrounding the interior conductor, an electrically conducting outer conductor surrounding the intermediate insulation, and an outer insulation surrounding the outer conductor. The outer insulation, the outer conductor, the intermediate insulation, the interior conductor, and the interior tube are disposed coaxial to one another.