摘要:
A cable for power distribution applications includes a plurality of wires bundled into the cable. The plurality of wires typically is comprised of interior wires and peripheral wires with the peripheral wires surrounding the interior wires. At least one wire is coated with a high emissivity coating that includes at least 10 weight percent aluminum oxide and a metal oxide other than aluminum oxide. Characteristically, the wire coated with the high emissivity coating has an emissivity greater than about 0.5 in the infrared region of the electromagnetic spectrum and a surface area at least 50 times greater than the surface area of a bare wire prior to being coated with the high emissivity coating.
摘要:
A bus bar (1) comprises: a laminated conductive wire (20) formed by arranging side by side in the longitudinal direction a first plate-shaped conductive wire (21) formed by spirally winding stripe conductors (11, 12) mutually adjacent in the width direction while bringing the opposing inner surfaces closer to each other, and a second plate-shaped conductive wire (22) formed by spirally winding the stripe conductors (11, 12) in the direction opposite the direction of the first conductive wire (21) while bringing the opposing inner surfaces closer to each other, and overlapping these wires (21, 22) so that the outer surfaces in the width direction face each other; and terminals (30) joined to the first conductive wire (21) and the second conductive wire (22) at both ends of the laminated conductive wire (20).
摘要:
A cable having one or more cores coated in a coating comprising at least one layer (a) of a material based on polytetrafluoroethylene (PTFE) with 5% to 80% by weight filler, and at least one layer (b) of a material based on PTFE with less than 8% by weight filler, the layer (b) being positioned outside the layer (a), and also a method of preparing the cable and a kit for constructing the cable.
摘要:
A method for producing an electrical insulation system of a conductor of a winding head of an electric machine is provided. The method includes applying a porous main insulation paper to the conductor of the electrical machine; applying a porous overhang corona shielding paper to the main insulation paper, as a result of which an insulation blank of the insulation system is formed; impregnating the insulation blank with a base resin, wherein the overhang corona shielding paper and the main insulation paper have a porosity such that the insulation blank is impregnated by the base resin to form a homogeneous base resin matrix; and completing the insulation system by curing the base resin.
摘要:
A high temperature resistant insulated electrical conductor (100) is provided in which a electrostatically deposited layer (6) of fluorocarbon material is disposed about a fiberglass insulation layer (4) encompassing a stranded or solid electrical conductor (2). Layer (6) is surrounded by a layer (8) of fiberglass insulation which in turn is preferably encompassed by a braided layer (10) of fiberglass insulation which is preferably coated with a layer (2) of protective high service temperature material. Layer (6) is preferably sintered to provide a fused homogenous construction as is layer (12) when required.
摘要:
This invention provides a method of increasing the cut-through resistance of a PTFE insulated conductor. Unsintered PTFE is expanded and compressed and then applied to a conductor. The insulated conductor is then heated to a temperature above 345.degree. C. The compressed, expanded PTFE has one crystalline melt point above 375.degree. C.
摘要:
The present invention provides a material based on high density polytetrafluoroethylene (PTFE) and its applications, such as in the production of electric cable. The PTFE material of the invention includes PTFE, a metal oxide, a lubricant and a wetting agent.
摘要:
An aluminum or aluminum alloy metal electrical conductor having a high temperature resistant electrically insulating metal oxide coating layer including at least one non-aluminum metal oxide chemically bonded thereto and methods of making and using same
摘要:
A technique facilitates the provision of electrical power in harsh environments, such as subterranean environments. The technique employs a power cable having at least one conductor and a polyimide insulation layer disposed about the conductor. A fluoropolymer tape layer is disposed about the polyimide insulation layer. The fluoropolymer tape layer is processed into a uniform, bonded layer. Additional cable layers also may be employed to help provide protection in the harsh environment.