Abstract:
The invention of the present application provides a wire harness with an improved accuracy of the dimension, that can be manufactured with an easy operation. A protector (4) defines at least either one of a bending shape and a branching shape of a plurality of electric wires (2). A cable tie (10) is attached to the electric wires (2), and includes a distal portion (11a) to be attached to the protector (4). The protector (4) includes an engaging portion (13) engageable with the distal portion (11a). Positions of the electric wires (2) and the protector (4) relative to each other are settled by engagement of the distal portion (11a) of the cable tie (10) attached to the electric wires (2) with the engaging portion (13).
Abstract:
A wired pipe transmission line for disposal in a wired pipe segment for use in subterranean drilling. The transmission line includes an assembly including an inner conductor and a dielectric layer including silicon dioxide (SiO2) insulating material surrounding the inner conductor and a protective layer that is formed of a rigid material and surrounding the dielectric layer. Also included is a method of forming a wired pipe transmission line.
Abstract:
There is provided a power supply wire for high-frequency current comprises: a corrugated tube made of metal; a combined electric wire disposed inside the corrugated tube and including a plurality of unit electric wires and a sheath material, each of the unit electric wires being formed by bundling together a plurality of conductive wires individually coated with insulating films, and the sheath material covering the plurality of unit electric wires; and a gap formed between the corrugated tube and the combined electric wire.
Abstract:
A distributive conductor electromagnetically shields and protects an insulated wire 10 by inserting it into a pipe 20. Heat generated in the insulated wire 10 is absorbed into a low heat-reflective layer 21 of lower heat reflectivity, transferred to the pipe 20, and then dissipated from an outer circumferential wall of the pipe 20 to atmosphere.
Abstract:
A shield conductor Wa comprises: a metallic pipe 20, a wire 10 to be inserted into the pipe 20, and a groove-like fitting member 22 provided in the pipe 20 as extending along the direction of axis of the wire 10, and at the same time, attached tightly to the circumference of the wire. With the inner surface of the groove-like fitting member 22 in the pipe 20 attached tightly to the circumference of the wire 10, the heat generated in the wire 10 is transmitted directly to the pipe 20, and then released to the air from the circumference of the pipe 20. This improves radiation performance of the shield conductor Wa.
Abstract:
A distributive conductor electromagnetically shields and protects an insulated wire 10 by inserting it into a pipe 20. Heat generated in the insulated wire 10 is absorbed into a low heat-reflective layer 21 of lower heat reflectivity, transferred to the pipe 20, and then dissipated from an outer circumferential wall of the pipe 20 to atmosphere.
Abstract:
Since it is configured such that the gap between the pipe 20 and the electric wire 10 in the pipe 20 is filled with a filler 30 having a heat conductivity higher than that of air, the heat generated in the electric wire 10 is transferred to the filler 30, then from the filler 30 to the pipe 20, and is discharged from the outer periphery of the pipe 20 to the outside air. Since the filler 30 has a heat conductivity higher than that of air, the performance in discharging the heat generated in the electric wire 10 is superior compared with a case in which the filler 30 is not charged. Thus, heat dissipation in the shield conductor using a pipe is improved.
Abstract:
A tubular bus bar is comprised of a conductive pipe member that is three-dimensionally bent, and first and second connections that are provided, e.g., at both ends of the pipe member. The pipe member is covered with an insulating tube, except for those portions at which the first and second connections are formed. The tubular bus bar is lightweight, easy to be recycled, high in power transfer efficiency, and easy to be assembled to an electrical equipment.
Abstract:
Conductors are placed in insulator which acts as a spacer/centralizer for the conductors, which are in turn mounted within tubing. The void spaces between the insulator and the tubing inside wall can be filled with a sealing material. Alternatively, the voids around the substantially centralized conductors can be used as flow channels for the transmission of fluid pressure to a remote location, such as downhole. The conductors are protected because they are kept away from the tubing wall and can be further protected by the addition of the sealing material.
Abstract:
A coil tubing electrical power cable system for use with a submersible pump in oil well and/or water well pumping applications. The cable includes a plurality of insulated electrical conductors enclosed in a low tensile strength corrosion-resistant metal tubing. The twist factor or lay length of the conductors is approximately eight to fourteen times the diameter of the insulated conductors in order to overcome the tensile loads and elevated temperatures which cause z-kinking. In addition, the electrical cable may include one or more hydraulic tubes.