A flexible flat cable manufacturing system comprises a tape conveying device conveying an adhesive tape along a first direction, and a wire conveying device conveying a row of wires along a second direction perpendicular to the first direction and parallel to a width direction of the conveyed adhesive tape. A wire pressing device presses and pastes the part of the row of wires facing the adhesive tape onto the adhesive tape. A wire cutting device cuts the row of wires to obtain a row of wire segments pasted on the adhesive tape and separated from the row of wires and produces a flexible flat cable including the adhesive tape and the wire segments pasted on the adhesive tape.

Bendability of a copper alloy wire is improved without decrease in an electrical conductivity of the copper alloy wire made of copper alloy containing zirconium. A cable includes: a two-core stranded wire formed by intertwining two electrical wires made of a conductor and an insulating layer covering the conductor; a filler formed around the two-core stranded wire; and a sheath formed around the filler and the electrical wire. The conductor is a copper alloy wire in which a precipitate containing the zirconium disperses, and has a crystal gain diameter that is equal to or smaller than 1 μm, an electrical conductivity that is equal to or higher than 87% IACS, and a tensile stress that is equal to or larger than 545 MPa.

A heating assembly configured to receive a power cable for restoring an insulation system of the power cable, the heating assembly including: a central pressurisation and heating structure, and a first and second lateral structure provided at a respective axial end of the central pressurisation and heating structure, the first and second lateral structure each having at least a 20 cm long axially extending section primarily made of a material at most having a conductivity of the order of 1000 S/m at 20° C.

A method of restoring an insulation system around a conductor of a power cable, using an induction heating system for heating the conductor of the power cable to restore an insulation system of the power cable, wherein the induction heating system includes: a first high frequency, HF, coil configured to receive the power cable, a water-cooling system configured to cool the first HF coil, and a power supply system configured to power the first HF coil, wherein the first HF coil is configured to be openable or splitable into at least two parts, the method including: a) placing a pressurisation and heating device around the power cable having a restoration insulation system layer arranged around the conductor, b) opening and placing the first HF coil around the power cable adjacent to the pressurisation and heating device, c) closing the first HF coil, and d) heating the restoration insulation system layer by outer heating of the restoration insulation system layer inside the pressurisation and heating device and by inner heating of the restoration insulation system layer provided by feeding the first HF coil with current from the power supply system inducing a current in the conductor, wherein the method includes performing steps a)-d) for each of a plurality of restoration insulation system layers.

A pressurisation and heating device for restoring an insulation system of a power cable, the pressurisation and heating device including: a first part including a first channel configured to receive a portion of the power cable, a second part including a second channel configured to receive a portion of the power cable, wherein the pressurisation and heating device is configured to be set in a closed state in which the first channel faces the second channel thereby forming a heating chamber extending from a first end to a second end, opposite the first end, of the pressurisation and heating device, wherein the pressurisation and heating device is configured to be pressurised to obtain a pressure higher than atmospheric pressure inside the heating chamber when the power cable is arranged sealed in the heating chamber, wherein the pressurisation and heating device has an at least 20 cm long axially extending section which is primarily made of material at most having a conductivity of the order of moo S/m at 20° C.

An HV busbar configured to connect a plurality of battery modules to each other, has a conductor including a first metal plate and a second metal plate and an insulative resin coating layer on the outer circumferential surface of the conductor, wherein a first metal constituting the first metal plate and second metals having a lower melting temperature than the first metal are mixed in the second metal plate in the state in which the second metals are dispersed.

A method for rejuvenating a strand-blocked cable having a conductor comprised of a plurality of conductor strands with interstitial volume therebetween blocked by a PIB based mastic, the conductor being surrounded by a polymeric cable insulation. The method comprising installing injection adapters that seal the cable ends of the cable and are usable to inject fluid into the interstitial volume between the conductor strands of the cable; elastically expanding the polymeric cable insulation through the application of pressure to the interstitial volume between the conductor strands of the cable; and injecting at least one injection fluid in which the PIB based mastic is mostly insoluble into the interstitial volume between the conductor strands of the cable.

Provided is an aluminum alloy for a cable conductor. Specifically, the present invention relates to an aluminum alloy for a cable conductor, which is excellent in both mechanical properties, such as tensile strength, at room temperature and high temperatures and elongation, and electrical conductivity, is simple to manufacture at low costs, and is eco-friendly.

An oxide superconductor according to an embodiment includes an oxide superconducting layer includes a single crystal having a continuous perovskite structure containing at least one rare earth element selected from the group consisting of yttrium, lanthanum, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, and lutetium, barium, and copper, containing praseodymium in a part of the site of the rare earth element in the perovskite structure, and having a molar ratio of praseodymium of 0.00000001 or more and 0.2 or less with respect to the sum of the at least one rare earth element and praseodymium; fluorine in an amount of 2.0×10.sup.15 atoms/cc or more and 5.0×10.sup.19 atoms/cc or less; and carbon in an amount of 1.0×10.sup.17 atoms/cc or more and 5.0×10.sup.20 atoms/cc or less.

A Li ion conductor includes a garnet-type composite metal oxide phase (L) containing Li, La, Zr, and O. The Li ion conductor has a diffraction peak at least one of at 2θ=13.8° ±1° and at 2θ=15.2° ±1° in X-ray diffraction measurement using CuKa rays. The Li ion conductor may have a metal-containing phase (K) different from the garnet-type composite metal oxide phase (L), and the metal-containing phase (K) contains a halogen element and Li.