A conductor for power transportation includes an elongated core constructed from a core material and an elongated conductive casing constructed from a conductive material. The elongated conductive casing is positioned around the elongated core and constructed from various layers of wires. Each layer of wires consists of a set of wires which are positioned next to each other, and at least a fraction of these wires being shaped in such a way that for the cross section of the wire, a circumscribed circle is filled only with between 50% and 90% of wire material. The cross section of the wire has a central portion filled with wire and a plurality of protrusions. The shape of these wires is such that the space taken up by these wires in the stack of wires in the layers is substantially cylindrical.

A covered electrical wire including a conductor and an insulating coating layer covering an outer periphery of the conductor, in which the conductor is a twisted wire obtained by concentrically twisting together a plurality of elemental wires constituted by a copper alloy, the copper alloy contains one or more elements selected from Fe, Ti, Mg, Sn, Ag, Ni, In, Zn, Cr, Al, and P in a total amount of 0.01 mass % to 5.5 mass % inclusive, and the remaining portion includes Cu and inevitable impurities, and an amount of oil adhering to a surface of a central elemental wire disposed at a central portion of the twisted wire is 10 μg/g or less with respect to the mass of the central elemental wire.

An insulated wire includes a conductor including a copper material, and an insulation layer that is formed on an outer periphery of the conductor. A restoring temperature T.sub.B of the conductor is not more than 130° C. The restoring temperature T.sub.B is a temperature that is needed to restore a conductivity of the conductor after a coil processing to a conductivity of the conductor before the coil processing.

A metallic material that includes a base material; and a surface layer formed on a surface of the base material and exposed on an outermost surface, wherein the surface layer contains Ag, and In less than the Ag in atomic ratio, and a connection terminal being made of the metallic material, wherein the surface layer is formed on a surface of the base material, at least in a contact portion electrically contacting an opposite electrically conductive member.

A cable includes an inner conductor; a dielectric arranged around the inner conductor; an outer conductor annularly arranged around the dielectric; a plurality of tapes around the outer conductor, each tape providing a successive layer over and circumferentially surrounding an underlying tape or the outer conductor, wherein one of the tapes is a conductor; and a jacket encasing the plurality of tapes.

Improvement of a strength of a copper alloy wire and improvement of an electrical conductivity of the same are both achieved. A copper alloy wire is made of a copper alloy, and the copper alloy contains indium, a content of which is equal to or more than 0.3 mass % and equal to or less than 0.45 mass %. A tensile strength of the copper alloy wire is equal to or higher than 800 MPa, and an electrical conductivity of the same is equal to or higher than 80% IACS.

The present invention relates to use of an enhanced performance ultraconductive copper composite cylindrical conduit. The ultraconductive copper composite cylindrical conduit has enhanced RF conductivity.

The present invention discloses a telescopic hose and the process technology thereof. The telescopic hose comprises an elastic support member that can be configured to conduct strong electricity; the support member comprises a first wire and a second wire, and the first wire and the second wire are arranged in a double helix structure in cooperation with each other; a hose wall that is wrapped around the outer side of the support member, and at least part of the hose wall between the first wire and the second wire forms a corrugated portion. Through the setting of the above structures, the hose can not only conduct strong electricity, but also stretch back and forth and turn at any angle. In addition, the hose structure is relatively simple, the amount of gas and liquid passing per unit time is larger.

An electronic assembly includes an electronic module and an electric part. The electronic module includes an electrically conductive press-fit terminal. The electrically conductive press-fit terminal has a press-fit section. The electric part has a contact hole. The press-fit section is inserted in the contact hole and plastically deformed therein, such that the press-fit section both mechanically and electrically contacts the electric part in the plastically deformed state. A corresponding method of assembly is also described.

A contact pin for connecting a first electrical conductor made of copper or a copper alloy and a second electrical conductor made of aluminum or an aluminum alloy comprises a plug-in section, a connecting section, and a coating disposed at least on the connecting section. The plug-in section is adapted to couple to the first electrical conductor. The connecting section is adapted to connect to the second electrical conductor. The coating is corrosion-resistant and compatible with aluminum and copper.