High-voltage power line cables for electric power transmission and, in particular, cable conductors for overhead electric power transmission and methods of making such conductors are disclosed. Methods for revamping in-stock and deployed cable conductors for overhead electric power transmission also are disclosed. Each cable conductor has an outermost surface defined by strands that are wrapped around a core of the cable conductor. Indentations are formed in the surfaces of the strands preferably such that an arrangement of dimples extending circumferentially around a longitudinal axis of the cable conductor repeats along a longitudinal direction of the cable conductor. The surface indentations preferably define a dimpled surface of the cable conductor.

An oxide superconductor includes: a substrate made of a metal; an insulating intermediate layer provided on the substrate; an oxide superconducting layer provided on the intermediate layer; a metal stabilizing layer provided on the oxide superconducting layer; and a plurality of dividing grooves which divide the metal stabilizing layer and the oxide superconducting layer along a longitudinal direction of the substrate, reach the inside of the intermediate layer through the oxide superconducting layer from the metal stabilizing layer, and do not reach the substrate. The metal stabilizing layer and the oxide superconducting layer are divided to form a plurality of filament conductors by the plurality of dividing grooves, and in each dividing groove of the plurality of dividing grooves, a width of a groove opening portion of the dividing groove is equal to or greater than a width of a groove bottom portion of the dividing groove.

A mold for printing a wiring includes: a bendable part between a first lever part and a second lever part; a first protruding portion protruding from a top face of the bendable part; a second protruding portion protruding from the top face of the bendable part and at one side of the first protruding portion; and a third protruding portion protruding from the top face of the bendable part and at the other side of the first protruding portion. The first and second protruding portions are spaced apart from each other with a first hinge groove therebetween, the first and third protruding portions are spaced apart from each other with a second hinge groove therebetween, and a width of each of the first and second hinge grooves increases as they respectively extends upwardly in the thickness direction.

A cable includes a first conductor and a first conductor isolation, wherein the first conductor includes at least a first break point between the first and second end of the cable and the first conductor isolation includes at least a second break point between the first and second end of the cable, the cable is configured so that the first conductor breaks at the at least first break point if the cable is exposed to a force that is above a first predetermined limit and first conductor isolation breaks at the at least second break point if the cable is exposed to a force that is above a second predetermined limit for avoiding hazardous electric shock after a crash of the vehicle.

A method for the continuous production of coaxial cables (224) having a thin-walled, radially closed outer conductor of nonferrous metal comprises supplying a flat strip of the nonferrous metal to a shaping apparatus (212), wherein the thickness of the strip corresponds to the wall thickness of the coaxial cable. The shaping apparatus is configured to continuously shape the supplied flat strip into a form corresponding to the outer conductor of the coaxial cable and around a cable core supplied before the outer conductor is closed. After the shaping, two opposite edges of the flat strip lie flush against one another in a contact region and are continuously welded to one another by a welding apparatus (216) by means of a laser, which radiates light having a wavelength smaller than 600 nm. The laser heats a point in a welding region that has a diameter smaller than 20% of the cross-sectional dimension of the coaxial cable. The welded coaxial cable is drawn off from the welding region and, after introducing a parallel or helical corrugation, is received in a receiving device (226).

A cable includes a first conductor and a first conductor isolation, wherein the first conductor includes at least a first break point between the first and second end of the cable and the first conductor isolation includes at least a second break point between the first and second end of the cable, the cable is configured so that the first conductor breaks at the at least first break point if the cable is exposed to a force that is above a first predetermined limit and first conductor isolation breaks at the at least second break point if the cable is exposed to a force that is above a second predetermined limit for avoiding hazardous electric shock after a crash of the vehicle.

A coaxial cable includes: a center conductor; a dielectric layer circumferentially surrounding the center conductor; and an outer conductor circumferentially surrounding the dielectric layer. The dielectric layer comprises an inner sleeve that circumferentially overlies the center conductor and an outer sleeve that circumferentially overlies the inner conductor. The outer sleeve contacts the inner sleeve to form a plurality of longitudinally-spaced seams to create a plurality of sealed segments along a longitudinal axis of the cable.

An insulating coated wire includes a center conductor and an insulating coating. The insulating coating has a bending auxiliary section in which the thickness of the insulating coating is smaller than that of the other portion, and that has a shape in which at least a part thereof protrudes outward in the radial direction. The bending auxiliary section has a shape that facilitates bending of the insulating coated wire by elongation deformation thereof. This insulating coated wire can be manufactured by arranging, on the circumference of an insulating coated wire material, a metal mold that has the inner surface including the section having a shape protruding outward in the radial direction, and forming the bending auxiliary section in the shape along the inner surface of the metal mold by heating the insulating coating within the metal mold and generating a pressure difference between inside and outside of the insulating coating.

A coaxial cable includes: a center conductor; a dielectric layer circumferentially surrounding the center conductor; and an outer conductor circumferentially surrounding the dielectric layer. The dielectric layer comprises an inner sleeve that circumferentially overlies the center conductor and an outer sleeve that circumferentially overlies the inner conductor. The outer sleeve contacts the inner sleeve to form a plurality of longitudinally-spaced seams to create a plurality of sealed segments along a longitudinal axis of the cable.

A coaxial cable includes: an inner conductor; a dielectric layer surrounding the inner conductor; an outer conductor surrounding the dielectric layer and having a plurality of corrugations, wherein each of the corrugations has a root and a crest connected by a transition section; a jacket surrounding the outer conductor; and a first adhesive layer interposed between the dielectric layer and the roots of the corrugations of the outer conductor. Each of the roots has a curved flattened portion that is adhered to the first adhesive layer.