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    Cable with dual filament insulator and process for selecting the effective dielectric constant of an insulated cable
    101.
    发明申请
    Cable with dual filament insulator and process for selecting the effective dielectric constant of an insulated cable 审中-公开
    具有双丝绝缘体的电缆和用于选择绝缘电缆的有效介电常数的工艺

    公开(公告)号：US20020079128A1

    公开(公告)日：2002-06-27

    申请号：US09945576

    申请日：2001-08-31

    发明人： David E. Karrmann

    IPC分类号： H01B007/00

    CPC分类号： H01B7/025 ,  H01B7/0233 ,  H01B11/1847

    摘要： A cable for transmitting electromagnetic signals has a central conductor. A pair of insulator filaments, each having a circular cross section, are twisted around each other to form an insulator wrap. The insulator wrap is helically wound around the conductor. An insulator sheath, provided as an outer cover for the cable, surrounds the wrapped central conductor and is supported by the insulator wrap. Since the insulator sheath is offset from the conductor, an enclosed air space is formed between the sheath and the conductor in the spaces not occupied by the insulator wrap. The twist pitch of the filaments and the pitch of the wrap around the conductor can both be modified to adjust the amount of insulator material located in the air space and thereby the cable's effective dielectric constant, which effects the propagation speed of the electromagnetic signals carried by the cable.

    摘要翻译： 用于传输电磁信号的电缆具有中心导体。 每个具有圆形横截面的一对绝缘体细丝彼此缠绕以形成绝缘体包裹物。 绝缘体包裹线缠绕在导体周围。 绝缘体护套，被设置为电缆的外盖，围绕着包裹的中心导体并由绝缘体包裹物支撑。 由于绝缘体护套从导体偏移，所以在未被绝缘体包裹物占据的空间中的护套和导体之间形成封闭的空气空间。 可以改变长丝的扭曲节距和导体周围环绕的间距，以调节位于空气空间中的绝缘体材料的量，从而调整电缆的有效介电常数，从而影响电磁信号的传播速度， 电缆。

    Process for making an electrical cable with expandable insulation
    102.
    发明授权
    Process for making an electrical cable with expandable insulation 失效
    制造具有可扩展绝缘的电缆的工艺

    公开(公告)号：US5468314A

    公开(公告)日：1995-11-21

    申请号：US166118

    申请日：1993-12-13

    申请人： Gordon L. McGregor ,  Raymond B. Minor ,  William Hardie ,  Michael Kennedy

    发明人： Gordon L. McGregor ,  Raymond B. Minor ,  William Hardie ,  Michael Kennedy

    IPC分类号： C08L27/18 ,  C08J9/32 ,  C08K7/00 ,  C08K9/10 ,  C08L23/00 ,  C08L23/02 ,  H01B3/44 ,  H01B7/02 ,  H01B11/18 ,  H01B13/08 ,  H01B13/14 ,  H01B13/22

    CPC分类号： C08J9/32 ,  C08K9/10 ,  H01B11/1839 ,  H01B7/0233 ,  C08J2327/18

    摘要： Improved insulative cable assemblies and methods for producing them are disclosed. The insulative cable assemblies comprise a conductor housed within a polymeric insulation layer expanded with expandable thermoplastic microspheres. The use of a relatively inelastic outside sheath controls the expansion of the insulative layer and assures a snug fit between the insulation and the conductor. The insulation layer is highly resilient and resistant to dielectric changes due to compression or damage from mechanical manipulation of the cable. Additionally, the ability to expand the insulative layer after cable assembly is completed provides far greater freedom in cable processing without compromising low dielectric constant.

    摘要翻译： 公开了改进的绝缘电缆组件及其制造方法。 绝缘电缆组件包括容纳在用可发性热塑性微球膨胀的聚合物绝缘层内的导体。 使用相对非弹性的外护套控制绝缘层的膨胀，并确保绝缘体和导体之间的贴合配合。 绝缘层具有很高的弹性，并且抵抗由于电缆的机械操作的压缩或损坏引起的电介质变化。 此外，在电缆组装完成之后扩展绝缘层的能力在电缆处理中提供了更大的自由度而不损害低介电常数。

    Polyvinylidene fluoride electrical cable
    103.
    发明授权
    Polyvinylidene fluoride electrical cable 失效
    聚偏氟乙烯电缆

    公开(公告)号：US4988835A

    公开(公告)日：1991-01-29

    申请号：US421895

    申请日：1989-10-16

    申请人： Dinesh T. Shah

    发明人： Dinesh T. Shah

    IPC分类号： H01B7/02 ,  H01B7/08

    CPC分类号： H01B7/0233 ,  H01B7/0838

    摘要： An electrical cable of conductive wire having an insulating layer of expanded, microporous sintered polytetrafluoroethylene around it, followed by a coating of a vinylidene fluoride-hexafluoropropylene copolymer surrounding the insulating layer, and an outer coating of polyvinylidene fluoride.

    摘要翻译： 导电线的电缆，其周围具有膨胀的微孔烧结聚四氟乙烯的绝缘层，随后围绕绝缘层的偏二氟乙烯 - 六氟丙烯共聚物的涂层和聚偏二氟乙烯的外涂层。

    High voltage cable with air dielectric
    104.
    发明授权
    High voltage cable with air dielectric 失效
    高压电缆带空气电介质

    公开(公告)号：US4018977A

    公开(公告)日：1977-04-19

    申请号：US702266

    申请日：1976-07-02

    申请人： Henry Otto Herrmann, Jr. ,  Douglas Wade Glover

    发明人： Henry Otto Herrmann, Jr. ,  Douglas Wade Glover

    IPC分类号： H01B7/02

    CPC分类号： H01B7/0233

    摘要： The present invention relates to a high voltage cable having a composite dielectric of solid insulation surrounded by an air dielectric. Spacers extend from the solid dielectric and through the air dielectric to maintain a dust cover in radially spaced relationship from the solid insulation and to define the air dielectric diameter.

    摘要翻译： 本发明涉及具有由空气电介质包围的固体绝缘体的复合电介质的高压电缆。 隔板从固体电介质延伸并通过空气电介质，以与固体绝缘体径向间隔开的关系保持防尘罩并限定空气绝缘体直径。

    Spacer construction for gas insulated high voltage cable
    105.
    发明授权
    Spacer construction for gas insulated high voltage cable 失效
    气体绝缘高压电缆隔板施工

    公开(公告)号：US3996414A

    公开(公告)日：1976-12-07

    申请号：US382916

    申请日：1973-07-26

    申请人： Jan Artbauer ,  Harald Roderburg ,  Friedrich Schatz

    发明人： Jan Artbauer ,  Harald Roderburg ,  Friedrich Schatz

    IPC分类号： H01B9/06 ,  H01B7/02 ,  H01B17/56 ,  H02G5/06 ,  H01B9/04

    CPC分类号： H02G5/066 ,  H01B7/0233

    摘要： In a gas insulated high voltage cable having an outer tubular, corrugated conductor and an inner centrally disposed conductor, a spacer construction for holding and spacing the inner conductor in the tubular outer conductor, wherein each spacer has at least two spacer elements of semi annular construction each and complementing each other for establishing a closed annulus, each element constructed for laterial slipping onto the inner conductor, and the two spacer elements are secured to each other to establish the closed annulus in positive disposition on the inner conductor. Additional features impede local voltage breakdown, positive interlock of parts and resilient load relief.

    摘要翻译： 在具有外部管状波纹状导体和内部中心布置的导体的气体绝缘高压电缆中，用于保持和间隔管状外部导体中的内部导体的间隔件结构，其中每个间隔件具有至少两个半环形结构的间隔元件 并且彼此互补以建立闭合的环形空间，每个元件构造成用于材料滑动到内部导体上，并且两个间隔元件彼此固定，以在内部导体上以正向布置形成封闭的环形空间。 附加功能阻碍局部电压击穿，部件的正互锁和弹性负载释放。