Impact resistant compact cable
    131.
    发明申请

    公开(公告)号:US20060076155A1

    公开(公告)日:2006-04-13

    申请号:US10518468

    申请日:2003-06-05

    IPC分类号: H01B7/00

    CPC分类号: H01B7/189 H01B9/02

    摘要: A cable for use in a predetermined voltage class, has a conductor; an insulating layer surrounding the conductor, the insulating layer having a thickness selected to provide a predetermined electrical stress when the cable is operated at a nominal voltage in said predetermined voltage class; and a protective element around the conductor having a thickness and mechanical properties selected to provide a predetermined impact resistance capability, the protective element having at least one expanded polymeric layer. The insulating layer thickness and the protective element thickness are selected in combination to minimize the overall cable weight while preventing a detectable insulating layer damage upon impact of 50 J energy. A method for designing a cable is also disclosed.

    Integrated power and data insulated electrical cable having a metallic outer jacket
    132.
    发明授权
    Integrated power and data insulated electrical cable having a metallic outer jacket 有权
    具有金属外护套的集成电源和数据绝缘电缆

    公开(公告)号:US06998538B1

    公开(公告)日:2006-02-14

    申请号:US10903756

    申请日:2004-07-30

    IPC分类号: H01B11/02

    CPC分类号: H01B9/02 H01B9/003

    摘要: The present invention is directed to a hybrid electrical cable providing for power transmission or distribution and data and/or voice signal communications. In one preferred embodiment, the hybrid electrical cable includes a power cable having a group of one or more high voltage power conductors for conducting power and one or more groups of low power signal conductors for transmitting voice and/or data and/or control signals. The cable further includes a power cable insulation jacket overlying the group of one or more power conductors. The power cable insulation jacket includes a soft magnetic material, preferably a soft ferrite magnetic material, for RF absorption. The cable additionally includes an outer grounded metallic jacket or sheath overlying the power cable, the power cable insulation jacket and the one or more groups of low power conductors.

    摘要翻译: 本发明涉及提供功率传输或分配以及数据和/或语音信号通信的混合电缆。 在一个优选实施例中,混合电缆包括具有一组用于传导电力的一个或多个高压电力导体的电力电缆和用于传输语音和/或数据和/或控制信号的一组或多组低功率信号导体。 电缆还包括覆盖一组或多个电力导体的电力电缆绝缘护套。 电力电缆绝缘套管包括用于RF吸收的软磁性材料,优选软铁氧体磁性材料。 电缆还包括覆盖电力电缆的外部接地金属护套或护套,电力电缆绝缘护套和一组或多组低功率导体。

    Electric power cable line and a method of fabricating the same
    133.
    发明授权
    Electric power cable line and a method of fabricating the same 失效
    电力电缆线及其制造方法

    公开(公告)号:US5283392A

    公开(公告)日:1994-02-01

    申请号:US863409

    申请日:1992-04-03

    摘要: An electric power cable line is arranged in which the insulating layer is increased to a greater thickness at two end portions of each cable than a thickness at the other or center portion of the same. Since the insulating layer is increased in thickness at the end portions of the cable, thus an electrical stress exerted on the overall layer construction of the end portions is lowered. Hence, the dielectric strength of the end portions of the cable becomes high and the power cable line will thus be increased in the operational reliability.

    摘要翻译: 布置电力电缆线,其中绝缘层在每个电缆的两个端部处比在其另一个或中心部分处的厚度增加到更大的厚度。 由于绝缘层在电缆的端部处的厚度增加,因此施加在端部的整个层结构上的电应力降低。 因此,电缆的端部的介电强度变高,因此电力电缆线的操作可靠性将增加。

    Semiconductive filling compound for power cable with improved properties
    135.
    发明授权
    Semiconductive filling compound for power cable with improved properties 失效
    具有改进性能的电力电缆用半导体填充料

    公开(公告)号:US4104480A

    公开(公告)日:1978-08-01

    申请号:US739315

    申请日:1976-11-05

    申请人: Paul F. Thompson

    发明人: Paul F. Thompson

    CPC分类号: H01B9/02 H01B7/285

    摘要: This invention is an improved filling compound for preventing moisture penetration along the interior of high voltage electric power cables. Amorphous polypropylene, mixed with carbon where it must be semiconductive, is an extremely good filling compound because of its electrical characteristics and also because of its good flow characteristics when extruding. When the cable is to be used under conditions where it must withstand temperatures so low that the polypropylene becomes brittle, it can be blended with polyisobutylene rubber to withstand lower temperatures, but the blend must be kept within limits to prevent loss of the good flow characteristics of the amorphous polypropylene.

    摘要翻译: 本发明是改进的填充化合物,用于防止沿着高压电力电缆内部的湿气渗透。 与必须为半导体的碳混合的无定形聚丙烯由于其电气特性以及挤出时的良好的流动特性而是非常好的填充化合物。 当电缆在必须经受如此低的温度使得聚丙烯变脆时,可以与聚异丁烯橡胶混合以承受较低温度的条件下使用,但必须将共混物保持在极限内,以防止良好的流动特性的损失 的无定形聚丙烯。

    System for underground distribution of electrical power and electrical
cable construction for use therein
    136.
    发明授权
    System for underground distribution of electrical power and electrical cable construction for use therein 失效
    用于地下电力和电力电缆施工的地下分配系统

    公开(公告)号:US4091291A

    公开(公告)日:1978-05-23

    申请号:US765122

    申请日:1977-02-03

    IPC分类号: H01B7/28 H01B9/02

    摘要: A system for the underground distribution of electrical power is provided and includes an electrical cable construction particularly adapted for use underground; and, the cable construction has a central conductor, a tubular insulator system for the conductor, a dual-purpose sacrificial anode supported by the insulator system and extending along substantially the full length of such insulator system, and a concentric neutral conductor supported by the insulator system and engaging the anode at a plurality of points therealong, with the dual-purpose sacrificial anode protecting the concentric neutral conductor against galvanic and soil corrosion as well as reducing AC corrosion of the concentric neutral conductor by providing additional surface area for the dissipation of currents leaving the neutral conductor.

    摘要翻译: 提供了用于地下电力分配的系统,并且包括特别适于在地下使用的电缆结构; 并且,电缆结构具有中心导体,用于导体的管状绝缘体系统,由绝缘体系统支撑并沿着绝缘子系统的大致整个长度延伸的双用途牺牲阳极,以及由绝缘体支撑的同心中性导体 系统并且在阳极的多个点处接合阳极,其中双用途牺牲阳极保护同心中性导体免受电偶和土壤腐蚀,并且通过为电流耗散提供额外的表面积来减少同心中性导体的AC腐蚀 留下中性导体。

    Power cable shielding
    137.
    发明授权
    Power cable shielding 失效
    电力电缆屏蔽

    公开(公告)号:US3790697A

    公开(公告)日:1974-02-05

    申请号:US3790697D

    申请日:1972-10-30

    申请人: OKONITE CO

    发明人: BUCKINGHAM R

    IPC分类号: H01B9/02 H01B7/22

    CPC分类号: H01B9/02

    摘要: A cable for transmitting electrical power incorporating a shield serving as a low resistance return path to carry heavy fault current. The shield comprises a multiplicity of helically wound elongate metallic elements such as straps, tapes or wires. The lay length of the metallic elements, if tapes or straps, is selected such that thermal expansion and elastic stretch of the straps or tapes is sufficient to accommodate expansion and contraction of the insulator within the elastic limit of the metallic elements. The lay length of the metallic elements, if wires, is selected such that the thermal expansion of the wires is sufficient to accommodate expansion and contraction of the insulator without elastically stretching the wires.

    摘要翻译: 用于传输电力的电缆,其包含用作低电阻返回路径的屏蔽以承载重的故障电流。 屏蔽包括多个螺旋缠绕的细长金属元件,例如带,带或线。 选择金属元件(如果带或带)的铺设长度,使得带或带的热膨胀和弹性拉伸足以适应绝缘体在金属元件的弹性极限内的膨胀和收缩。 选择金属元件(如果导线)的铺设长度,使得电线的热膨胀足以适应绝缘体的膨胀和收缩而不弹性拉伸导线。

    Distribution cable with coaxial connectors permanently connected thereto and a method of manufacture thereof
    138.
    发明授权
    Distribution cable with coaxial connectors permanently connected thereto and a method of manufacture thereof 失效
    与其永久连接的同轴连接器的分配电缆及其制造方法

    公开(公告)号:US3778531A

    公开(公告)日:1973-12-11

    申请号:US3778531D

    申请日:1972-10-02

    发明人: HIGGINS P

    摘要: In an electrical distribution cable comprising a number of insulated electric power conductors and a neutral conductor, the assembly of conductors being enclosed in a protective insulating sheath, a coaxial connector is permanently secured to the cable at each of a plurality of spaced locations along its length before it is installed. The inner conductive element of each connector is electrically connected to one of the power conductors of the cable and the outer conductive element of the connector is electrically connected to the neutral conductor of the cable. Each of the coaxial connectors is at least partially embedded in a protective insulating covering integral with or bonded to the protective sheath of the cable. The neutral conductor may be laid up helically with or parallel to the power conductors or it may be in the form of an outer concentric conductor.

    摘要翻译: 在包括多个绝缘电力导体和中性导体的配电电缆中,导体的组件封装在保护绝缘护套中,同轴连接器在其长度的多个间隔位置中的每一个处永久固定到电缆上 在安装之前。 每个连接器的内部导电元件电连接到电缆的一个电源导体,并且连接器的外部导电元件电连接到电缆的中性导线。 每个同轴连接器至少部分地嵌入与电缆的保护护套一体或结合的保护性绝缘覆盖层中。 中性导体可以与电力导体螺旋地或平行地放置,或者可以是外同心导体的形式。

    Electric high-voltage compressed-gas-insulated power transmission line
    139.
    发明授权
    Electric high-voltage compressed-gas-insulated power transmission line 失效
    电动高压压缩气体绝缘输电线路

    公开(公告)号:US3766306A

    公开(公告)日:1973-10-16

    申请号:US3766306D

    申请日:1973-01-09

    申请人: SIEMENS AG

    发明人: OLSEN W

    IPC分类号: H01B9/02 H01B9/06 H02G5/06

    摘要: An electric high-voltage compressed-gas-insulated power transmission line has an electric power conductor within and in spaced relation to a tubular enclosure filled with compressed gas insulation and able to withstand normal stressing electrically and/or thermally but not able to withstand such stressing when it becomes excessive. At least one electrically grounded electric conductor is fixed to the inside of this enclosure and extends longitudinally thereof and is itself capable of withstanding such excessive stressing. This grounded conductor projects transversely from the enclosure''s inside far enough to cause the electrostatic field normally surrounding the power conductor to concentrate on the grounded conductor so the latter receives such stressing instead of the enclosure, thus protecting the enclosure.

    摘要翻译: 电气高压压缩气体绝缘输电线路具有在与压缩气体绝缘体相连的管状外壳内并具有隔开关系的电力导体,能够承受电和/或热但不能承受这种应力的正常应力 当它变得过大时 至少一个电接地电导体固定在该外壳的内部并且纵向延伸,并且本身能够承受这种过度的应力。 这个接地的导线从外壳的内部横向突出得足够远,导致通常在电源导体周围的静电场集中在接地的导体上,因此后者会接收到这种应力而不是外壳,从而保护外壳。