A cable includes a core and a plurality of layers surrounding the core. In one embodiment, at least one of the layers surrounding the core includes multiple sets of phase conductors. The respective sets of phase conductors are electrically isolated from one another. Other cables are also provided.

A cable includes a core and a plurality of layers surrounding the core. In one embodiment, at least one of the layers surrounding the core includes multiple sets of phase conductors. The respective sets of phase conductors are electrically isolated from one another. Other cables are also provided.

A method for producing an operative connection between a coaxial cable (1) and a coaxial connector (16). A cable jacket (5), if present, is removed by means of a first tool (6) to a predefined first length L1. In a second step, an outer conductor (3) is removed by means of a second tool (7) to a predefined second length L2. In a third step, a dielectric (4) is removed by means of a third tool (8) to a third length L3, such that one end (15) of the inner conductor (2) is exposed. Then the end (15) of the inner cable conductor (2) is formed by means of a rotary swaging device (9), which comprises a plurality of deflectable jaws (10) rotatable circumferentially about an axis of rotation (11) and each hammering in the radial direction with at least one operative surface (14).

A method for producing an operative connection between a coaxial cable (1) and a coaxial connector (16). A cable jacket (5), if present, is removed by means of a first tool (6) to a predefined first length L1. In a second step, an outer conductor (3) is removed by means of a second tool (7) to a predefined second length L2. In a third step, a dielectric (4) is removed by means of a third tool (8) to a third length L3, such that one end (15) of the inner conductor (2) is exposed. Then the end (15) of the inner cable conductor (2) is formed by means of a rotary swaging device (9), which comprises a plurality of deflectable jaws (10) rotatable circumferentially about an axis of rotation (11) and each hammering in the radial direction with at least one operative surface (14).

A cable includes a plurality of covered electric wires and an outer sheath, wherein the plurality of covered electric wires include two first covered electric wires, two second covered electric wires having a larger conductor cross-sectional area than the first covered electric wires, and two third covered electric wires having a smaller conductor cross-sectional area than the second covered electric wires, and wherein the two first covered electric wires are twisted together along a longitudinal direction thereof to form a first twisted wire pair, the two third covered electric wires are twisted together along a longitudinal direction thereof to form a second twisted wire pair, a twist pitch of the second twisted wire pair is longer than a twist pitch of the first twisted wire pair, the first twisted wire pair, the two second covered electric wires, and the second twisted wire pair are twisted together to form a core, in the core, at least a partial contact is provided between the first covered electric wires and the second covered electric wires, between the second covered electric wires and the third covered electric wires, and between the two first covered electric wires, and the outer sheath is arranged to cover the core.

A cable includes a plurality of covered electric wires and an outer sheath, wherein the plurality of covered electric wires include two first covered electric wires, two second covered electric wires having a larger conductor cross-sectional area than the first covered electric wires, and two third covered electric wires having a smaller conductor cross-sectional area than the second covered electric wires, and wherein the two first covered electric wires are twisted together along a longitudinal direction thereof to form a first twisted wire pair, the two third covered electric wires are twisted together along a longitudinal direction thereof to form a second twisted wire pair, a twist pitch of the second twisted wire pair is longer than a twist pitch of the first twisted wire pair, the first twisted wire pair, the two second covered electric wires, and the second twisted wire pair are twisted together to form a core, in the core, at least a partial contact is provided between the first covered electric wires and the second covered electric wires, between the second covered electric wires and the third covered electric wires, and between the two first covered electric wires, and the outer sheath is arranged to cover the core.

A cable apparatus and method for preventing discoloration to a cable is disclosed. The apparatus includes a conductor. An exterior layer surrounds the conductor. A thin film material is removably positioned over an exterior surface of the exterior layer. At least one film removal area is positioned within the thin film material, wherein the at least one film removal area is positioned along a length of the exterior layer.

An insulated electric wire includes: an exposed portion and a covered portion including the insulation covering, and further includes a water-stopping portion wherein a water-stopping agent is placed over the exposed portion, and part of the covered portion and is adjacent to the exposed portion. The water-stopping portion continuously has: an inter-elemental-wire filling area filled with the water-stopping agent in gaps between conductor elemental wires; an exposed-portion-outer-circumferential area wherein the water-stopping agent covers an outer circumference of the conductor; and a covered-portion-outer-circumferential area wherein the water-stopping agent covers an outer circumference of the insulation covering. In a subject region that is a part of the exposed-portion-outer-circumferential area and is other than a region closer to the covered-portion-outer-circumferential area with a larger outer diameter due to a thickness of the insulation covering, a difference between a maximum and minimum outer diameter is not greater than 12% of the minimum outer diameter.

An insulated electric wire includes: an exposed portion and a covered portion including the insulation covering, and further includes a water-stopping portion wherein a water-stopping agent is placed over the exposed portion, and part of the covered portion and is adjacent to the exposed portion. The water-stopping portion continuously has: an inter-elemental-wire filling area filled with the water-stopping agent in gaps between conductor elemental wires; an exposed-portion-outer-circumferential area wherein the water-stopping agent covers an outer circumference of the conductor; and a covered-portion-outer-circumferential area wherein the water-stopping agent covers an outer circumference of the insulation covering. In a subject region that is a part of the exposed-portion-outer-circumferential area and is other than a region closer to the covered-portion-outer-circumferential area with a larger outer diameter due to a thickness of the insulation covering, a difference between a maximum and minimum outer diameter is not greater than 12% of the minimum outer diameter.

An electric pulse decomposition method for separating a composite material by an electric pulse, the composite material being obtained by bonding or joining a plurality of conductors to each other with an insulating member, the electric pulse decomposition method including a protrusion formation step for forming a protrusion in a specific site, on a side on which the composite material is arranged, of at least one of the plurality of conductors, and a separation step for separating the plurality of conductors in the composite material 1 by respectively bringing electrodes into contact with surfaces of the plurality of conductors and applying an electric pulse between the electrodes to destroy the insulating member. This makes it possible to separate the plurality of conductors from the composite material by making a shock wave caused by a current of the dielectric breakdown functioning as an adhesive to effectively destroy the insulating member.