Provided are a graphene wire, a cable to which the graphene wire is applied, and a method of manufacturing the graphene wire. The graphene wire includes a catalytic metal wire and a graphene layer coated on a surface of the catalytic metal wire, and the catalytic metal wire includes a stranded cable in which at least two core wires are twisted around each other.

An electric cable (10) includes at least one composite reinforcement element (1) including one or more reinforcement element(s) at least partially embedded in an organic matrix. A coating (2) surrounds the composite reinforcing element(s) (1). The coating (2) is sealed all around the composite reinforcing element(s) (1). At least one conducting element (3) surrounds the coating (2), where the thickness of the sealed coating (2) does not exceed 3000 m.

A cable includes a flexible coated wire, a multi joint support member, and a flexible sheath member that covers the multi joint support member and the coated wire. The multi-joint support member is formed by pivotally coupling adjacent ones of a plurality of link members arranged in series. Turning of the multi joint support member in a first direction in a direction intersecting a serial direction is allowed until becoming equal to a predetermined radius of curvature and turning of the multi joint support member in a second direction, which is opposite to the first direction, is restricted.

A high temperature superconducting joint, a high temperature superconducting wire or tape comprising a high temperature superconducting joint, or an MRI or NMR machine comprising a high temperature superconducting wire or tape comprising a high temperature superconducting joint. Also, methods for producing a high temperature superconducting joint for use in a superconducting wire or an MRI or NMR machine, or other high field generating coil.

A submersible pumping system for use in producing wellbore fluids from a wellbore within a subterranean formation includes a motor and a pump driven by the motor to produce the wellbore fluids. The pumping system further includes a self-supporting power cable connected to the pump. The self-supporting power cable includes a plurality of conductors and a plurality of strength members. A method of deploying and retrieving a submersible pumping system in a wellbore includes the steps of connecting a wireline to the submersible pumping system, connecting a self-supporting power cable to the submersible pumping system, lowering the submersible pumping system into the wellbore while the weight of the submersible pumping system is borne by the wireline. The method continues with the step of locating the submersible pumping system on a landing assembly, disconnecting the wireline from the submersible pumping system, and retrieving the wireline from the wellbore without removing the submersible pumping system from the wellbore.

The present invention concerns a power cable, comprising a tension member (1), placed in the centre of said power cable; a first insulation layer (3), the tension member (1) being embedded in the first insulation layer (3); and an outer protective sheath (9); wherein said power cable further comprises one or more first aluminum conductors (4), embedded within the first insulation layer (3). The present invention also concerns a process for producing the inventive power cable, the process comprising the step of extruding a first polymeric insulation layer (3) onto the tension member (1) and the one or more conductors (4) in one single step. Finally, the present invention concerns the use of the inventive power cable, in medium-voltage to high-voltage subsea applications, such as an offshore windmill cable infrastructure or driving of subsea pumps.

A cable includes a flexible coated wire, a multi joint support member, and a flexible sheath member that covers the multi joint support member and the coated wire. The multi-joint support member is formed by pivotally coupling adjacent ones of a plurality of link members arranged in series. Turning of the multi joint support member in a first direction in a direction intersecting a serial direction is allowed until becoming equal to a predetermined radius of curvature and turning of the multi joint support member in a second direction, which is opposite to the first direction, is restricted.

A power tool has a drive unit and an operating handle. At least one electrical line connects the operating handle and the drive unit to each other. The at least one electrical line is fastened at a first electrical connection location to the operating handle and at a second electrical connection location to the drive unit. A safety cable extends along the at least one electrical line between operating handle and drive unit. The safety cable has a first end section and a second end section. The first end section is connected mechanically fixed at a first fixation location to the operating handle. The second end section is connected mechanically fixed at a second fixation location to the drive unit. The at least one electrical line and the safety cable are guided together such that the safety cable forms a tear-off protection for the at least one electrical line.

A cable includes: a cable core including one or more electrical wires; a shield layer made of a metallic wire arranged on a periphery of the cable core; and a sheath arranged on a periphery of the shield layer. The metallic wire is made of a copper alloy wire made of a copper alloy containing indium, a content of which is equal to or more than 0.3 mass % and equal to or less than 0.65 mass %, and the metallic wire has tensile strength that is equal to or higher than 350 MPa and elongation that is equal to or higher than 7%.

This invention relates to cable equipment, specifically, to geophysical cables, and is intended for lowering and lifting of geophysical instruments and devices, for supplying them with electric power, and for providing communication between surface equipment and instruments used during geophysical studies of horizontal and uphill portions of oil and gas wells. The geophysical cable for study of horizontal and uphill portions of wells contains at least one current-conducting core and an outside coating; at least one current-conducting core is located in a mass of polymer composite material armoured with glass or carbon fibers. The technical result of the proposed invention is to increase the longitudinal elasticity of a geophysical cable for study of horizontal and uphill portions of wells, which would ensure its self-rectification during operation, while preserving its strength and stiffness for pushing geophysical devices in horizontal portions of wells.