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    • 7. 发明授权
    • Transition joint for oil-filled cables
    • 充油电缆的过渡接头
    • US5374784A
    • 1994-12-20
    • US70558
    • 1993-06-01
    • Carl J. Wentzel
    • Carl J. Wentzel
    • H02G15/08H02G15/103H02G15/184H02G15/24H02G1/14
    • H02G15/24H02G15/103H02G15/184Y10S174/08
    • A transition joint for sealing an electrical coaxial cable having an oil-impregnated or fluid filled layer. The transition joint has two primary elements, an electrically insulative elastomeric tube and a heat recoverable sleeve. In connecting a paper-insulated, lead jacketed cable to an extruded dielectric cable, the elastomeric tube is placed in tight conformity around the paper layer, slightly overlapping the lead jacket and the central conductor, and further partially overlapping a connector joining the conductors of the cables. The heat recoverable sleeve is then contracted over the elastomeric tube, overlapping the lead jacket and the central conductor, and partially overlapping the connector. The heat recoverable sleeve mechanically restricts the elastomeric tube, preventing the elastomeric tube from swelling which, in turn, precludes absorption of the oil, which would otherwise cause the elastomer to degrade. If the cable has an additional semiconducting layer, a high-dielectric tape may be used for dielectric stress control.
    • 一种用于密封具有油浸或流体填充层的电同轴电缆的过渡接头。 过渡接头具有两个主要元件:电绝缘弹性体管和可热回收的套管。 将纸绝缘的铅夹套电缆连接到挤出的电介质电缆上时,弹性体管被紧密地放置在纸层周围,与引线护套和中心导体稍微重叠,并且进一步部分地重叠连接器 电缆 然后将可回收套管收缩在弹性管上,与引线护套和中心导体重叠,并与连接器部分重叠。 热回收套管机械地限制弹性体管,防止弹性体管膨胀,这反过来排除了油的吸收,否则会导致弹性体降解。 如果电缆具有附加的半导体层,则可以使用高介电磁带来进行介电应力控制。