摘要:
An insulated wire for high temperature applications features a conductor and a protective outer shell layer. A bonding layer is positioned between the conductor and the protective outer shell layer. The bonding layer secures the protective outer shell layer to the conductor.
摘要:
An electrical submersible pumping system (ESP) for use in a wellbore has electrical lines that include a power cable that extends into the wellbore for energizing a motor in the ESP, and windings in the motor. The lines are insulated with an inner layer that incorporates a carbon nano-material and an outer layer of polyether ether ketone (PEEK) and/or a polyimide. The carbon nano-material is made up of nanotubes or nanosheets.
摘要:
There is provided a conductive path (1). The conductive path (1) includes a conductor (4) and a sheath (5). The sheath (5) covers the conductor (4). The sheath (5) is made of a resin composition. The resin composition has elasticity. There are formed protrusions (8) which are convexly protruded from an outer peripheral surface (7) of the sheath (5) of the conductive path (1). Furthermore, there is provided a shielded connector (3), comprising a holder (14); and a wire (51) inserted into the holder (14).
摘要:
The invention relates to a cable, comprising a conductor surrounded by one or more layer(s), wherein at least one layer comprises a polyolefin composition comprising, - an olefin polymer (A) comprising epoxy-groups; - at least one crosslinking agent (B) which accelerates the crosslinking reaction of epoxy-groups; and - optionally a conductive filler.
摘要:
An umbilical for use in the offshore production of hydrocarbons, the umbilical comprising a plurality of functional elements contained within an outer sheath, at least one of said functional elements comprising a multicore electric cable, said multicore electric cable comprising a plurality of insulated electric conductors electrically insulated from each other and assembled together in a helical or S/Z manner, said multicore electric cable further comprising a protective polymer sheath surrounding said plurality of insulated electric conductors, said multicore electric cable further comprising a tubular metallic layer located inside said protective polymer sheath and surrounding said plurality of insulated electric conductors.
摘要:
Bei einem Verfahren zum Längsabdichten von elektrischen Leitungen (2), welche eine oder mehrere in einer Außenumhüllung (22) angeordnete Leitungsfasern (21) und Hohlräume (23) zwischen den einzelnen Leitungsfasern (21) sowie zwischen den einzelnen Leitungsfasern (21) und der Außenumhüllung (22) aufweisen, wird erfindungsgemäß das zu dichtende eine Ende (2a) der Leitung (2) in eine flüssige Dichtmasse (3) eingetaucht und das andere Ende (2b) der Leitung (2) mit Unterdruck beaufschlagt. Eine zum Durchführen dieses Verfahrens geeignete Abdichtvorrichtung (1) umfasst ein Vorratsreservoir (4) für die flüssige Dichtmasse (3), in die das zu dichtende eine Ende (2a) der Leitung (2) eingetaucht wird, und eine Unterdruckquelle (5), an die das andere Ende (2b) der Leitung (2) angeschlossen wird.