201results about "Concentric cables" patented technology

An electrical wire includes at least one electrifiable conductor for delivering electrical power, a first insulating layer formed on one side of the electrifiable conductor, a second insulating layer formed on the opposite side of the electrifiable conductors, a first return conductor formed on the first insulating layer opposite the at least one electrifiable conductor, and a second return conductor formed on the second insulating layer opposite the at least one electrifiable conductor. The at least one electrifiable conductor is at least substantially entrapped by the first and second return conductors such that the distance between said at least one electrifiable conductor and each of said first and second return conductors is no greater than approximately 0.030 inches. At least one of the first insulating layer or the second insulating layer comprises a plurality of insulating layers.

There is provided a hybrid cable that comprises a coaxial cable with an outer conductor and a hollow inner conductor that encloses an inner space. The hybrid cable according to an exemplary embodiment of the present invention may comprise a data line that is arranged in the inner space of the inner conductor.

A wire cable of electric conductor forming of multiple metals or alloys includes single (bundle) wire cable or double (bundle) wire cables, in which at least in one bundle of electric conductor, each bundle of electric conductor is composed of slim electric wire made by two or more than two metals or alloys, which is covered by insulator to form a wire cable of electric conductor.

Herein described is a cable from transmitting electricity, which is particularly useful for subsea applications. A method of manufacturing the cable and a method of transmitting electricity with the cable is also described.

The invention provides a method for manufacturing Cu-Ag alloy wires for producing extra fine Cu-Ag alloy wires at high production and extra fine Cu-Ag alloy wire. The manufacturing method for performing drawing to the blank containing 0.5 to 15.0 mass% of Ag, to fabricate extra fine wire with the final wire diameter of less than or equal to 0.05mm. The surface layer of the wire located at a midway stage of the drawing before achieving the final wire diameter wire and in which the wire diameter Phi is less than or equal to 1.0mm diameter, is removed. The removal of the surface layer is performed as follows, the thickness t of the removed surface layer satisfies: t/r >=0.02 when 1/2 of the wire diameter Phi of the wire before removing the surface layer. The obtained extra fine Cu-Ag alloy wire or the stranded wire formed by stranding the Cu-Ag alloy wire can be appropriately applied to the coaxial-cable.

A cable includes a plurality of cable strands, an insulator disposed on a portion of the plurality of strands such that the plurality of strands are at least partially exposed, and a sealant disposed between gaps of the plurality of strands and at least partially under the insulator. Moreover, a method includes stripping an insulator from an end of the cable to expose a plurality of cable strands, and applying a sealant to the cable strands such that the sealant is drawn under the insulator and fills in gaps between the cable strands by capillary action.

A superconducting cable for power lead and transmission applications is disclosed. The high performance power cable comprises two type of different superconducting cable structures arranged co-axially, and the magnetic fields of their transport currents mutually enhance their performances. A further object is a power distribution cable that minimizes the cryogenic losses by a design of the compact cable cross-sections.

A High-Temperature Superconducting (HTS) transmission cable based on the cold dielectric concept with an HTS shield makes it possible to house all three phases inside a single cryostat without causing large degradation and loss due to magnetic fields generated by the neighboring phases. A further optimization is realized by making the three phases concentric to each other. No shielding layer is required in such a tri-axial configuration. It is more compact and requires only about half of the HTS tapes as that of three separately shielded phases. Each phase advantageously consists of two layers of BSCCO-2223 HTS tapes.

The invention relates to a three-conductor cable (10) consisting of three stranded electric cables (1), each comprising a core that has a current conductor (2) and a neutral and/or return conductor. Each individual cable (1) is essentially characterised in that the neutral and/or return conductor is configured from a number of individual conductors (4), distributed concentrically around the current conductor (2), that an insulating sheath (3) is provided between the current conductor (2) and the distributed individual conductors (4) of the neutral and/or return conductor and that a protective jacket covers the neutral and/or return conductor.

An electrical wire includes at least one electrifiable conductor, and first and second return conductors which are respectively formed on opposing sides of the at least one electrifiable conductor, such that the at least one electrifiable conductor is at least substantially entrapped by said first and second return conductors.

A wire harness includes a coaxial conducting wire including a plurality of high voltage paths which are coaxially aligned, a covering member, accommodating the coaxial conducting wire, and a terminal, connected to one of the high voltage paths disposed outside of another one of the high voltage paths, and including a tubular portion coaxial to the coaxial conducting wire. The terminal includes a connection tubular portion as the tubular portion, a crimping tubular portion connecting the one of the high voltage paths to the connection tubular portion by crimping, and an outside connection terminal integrated with the connection tubular portion.

A cable for high power transmission equipment, its structure from inside to outside is: inner conductor, first semiconductive wrapping shielding layer, inner conductor insulation, second semiconducting wrapping shielding layer, outer conductor, wrapping layer, Outer conductor insulation and outer sheath. The insulating layer of the inner conductor is made of silicon rubber; the outer conductor is braided with one or more layers of tinned copper wire; the insulating layer of the outer conductor is made of silicon rubber; the outer sheath layer is made of polyurethane. The manufacturing method of the cable comprises: 1) manufacturing the inner conductor; 2) manufacturing the first semiconductive wrapping shielding layer; 3) manufacturing the inner conductor insulating layer; 4) manufacturing the second semiconductive wrapping shielding layer; 5) manufacturing 6) manufacturing the wrapping layer; 7) manufacturing the insulating layer of the outer conductor; 8) manufacturing the outer sheath layer. In each step, a specific process method is adopted, so that the electrical and mechanical properties of the cable prepared by this method can meet or exceed the detection requirements, so that the cable for high-power transmission equipment can transmit high power safely and reliably, and has the advantages of light weight. , miniaturization, low temperature resistance, good flexibility, small bending radius and other excellent performances, suitable for high electric energy technical equipment.

The fibre composite rod intervention cable is for a petroleum well, and has a length of at least 2 to 10 km or more with the following sequence: a central electrical cable portion, a bonding layer, a generally unidirectional carbon fibre composite mantle layer, a protective, balanced braided fibre 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 invention discloses a dry-type all-insulating tubular bus and relates to power generation, transmission, transformation and distribution devices of an electric power system. The dry-type all-insulating tubular bus comprises a hollow conducting tube, a first epoxy resin insulating layer and a first shielding layer, wherein the first epoxy resin insulating layer is coated outside the hollow conducting tube; and the first shielding layer is coated outside the first epoxy resin insulating layer. By using a coaxial capacitance principle and an epoxy resin molding technology, the dry-type all-insulating tubular bus has the advantages of high bus capacity, low volume, energy conservation, maintenance-free performance, safe operation and convenience for large-scale manufacturing.

The present invention relates to a filler and a cable having the same and, more particularly, to a filler and a multicore cable comprising a plurality of core portions, which comprises a conductor, and a protective layer that surrounds the core portions, the filler being provided between the core portions and the protective layer of the multicore cable, the filler being characterized by comprising: frame portions comprising a first frame portion and a second frame portion, which are rotated by predetermined angles towards both sides about the center portion thereof and then incised; and a support portion provided between the frame portions so as to connect the frame portions to each other.

The present invention relates to electrical conductors for electrical transmission and distribution with pre-stress conditioning of the strength member so that the conductive materials of aluminum, aluminum alloys, copper, copper alloys, or copper micro-alloys are mostly tension free or under compressive stress in the conductor, while the strength member is under tensile stress prior to conductor stringing, resulting in a lower thermal knee point in the conductor.

An electrical wire includes at least one electrifiable conductor, and first and second return conductors which are respectively formed on opposing sides of the at least one electrifiable conductor, such that the at least one electrifiable conductor is at least substantially entrapped by said first and second return conductors.