Overhead electric transmission systems
    1.
    发明授权
    Overhead electric transmission systems 失效
    架空电力传输系统

    公开(公告)号:US4359598A

    公开(公告)日:1982-11-16

    申请号:US220291

    申请日:1980-12-29

    摘要: A flexible stranded body, such as an electric conductor of an overhead electric transmission or distribution system, comprises at least one stranded layer of elongate elements of metal or metal alloy, at least one elongate compartment within and extending throughout the length of the stranded body and, loosely housed in the elongate compartment, at least one separate optical fibre and/or at least one optical bundle. Preferably, the elongate compartment extends within a circumferentially rigid central core which is surrounded by the stranded layer or layers but it may be a bore in an elongate element of a stranded layer or an elongate space bounded by two adjacent elongate elements.

    摘要翻译: 弹性绞合体,例如架空电力传输或分配系统的导体,包括金属或金属合金的细长元件的至少一个绞合层,在绞合体的整个长度内并在其延伸的至少一个细长隔室,以及 ,松散地容纳在细长隔室中,至少一个单独的光纤和/或至少一个光束。 优选地,细长隔室在周向刚性的中心芯部内延伸,该芯部被绞合的层或层包围,但是它可以是绞合层的细长元件中的孔或由两个相邻细长元件限定的细长空间。

    Overhead electric and optical transmission cables
    2.
    发明授权
    Overhead electric and optical transmission cables 失效
    架空电和光传输电缆

    公开(公告)号:US4416508A

    公开(公告)日:1983-11-22

    申请号:US380117

    申请日:1982-05-20

    摘要: A flexible stranded body, such as an electric conductor of an overhead electric transmission or distribution system, comprises at least one stranded layer of elongate elements of metal or metal alloy, at least one elongate compartment within and extending throughout the length of the stranded body and, loosely housed in the elongate compartment, at least one separate optical fibre and/or at least one optical bundle. Preferably, the elongate compartment extends within a circumferentially rigid central core which is surrounded by the stranded layer or layers but it may be a bore in an elongate element of a stranded layer or an elongate space bounded by two adjacent elongate elements.

    摘要翻译: 弹性绞合体,例如架空电力传输或分配系统的导体,包括金属或金属合金的细长元件的至少一个绞合层,在绞合体的整个长度内并在其延伸的至少一个细长隔室,以及 ,松散地容纳在细长隔室中,至少一个单独的光纤和/或至少一个光束。 优选地,细长隔室在周向刚性的中心芯部内延伸,该芯部被绞合的层或层包围,但是它可以是绞合层的细长元件中的孔或由两个相邻细长元件限定的细长空间。

    Manufacture of a flexible stranded optical fiber body
    3.
    发明授权
    Manufacture of a flexible stranded optical fiber body 失效
    制造柔性绞合光纤体

    公开(公告)号:US4372792A

    公开(公告)日:1983-02-08

    申请号:US311558

    申请日:1981-10-15

    IPC分类号: G02B6/44 H01B13/06 G02B5/16

    摘要: An overhead electric conductor with optical fibres loosely housed in the bore of a central core, which bore also contains a greasy water-impermeable medium 4, is manufactured by causing a preformed elongate metal member of U-shaped transverse cross-section and the optical fibres to advance in the direction of their lengths, the rate of advance of the fibres being restrained. As the U-shaped elongate member is transversely folded around the optical fibres greasy water-impermeable medium is injected into the bore of the elongate metal member under a controlled pressure. The consistency of the greasy water-impermeable medium the pressure and rate at which it is injected into the bore and the degree of restraint imparted to the optical fibres 3 is such that, in a predetermined length of the conductor, the length of the optical fibres exceeds the length of the bore by a controlled extent, preferably 1 to 3%.

    摘要翻译: 通过使预制的U形横截面的细长金属构件和光纤制成具有松散地容纳在中心芯的孔中的孔的架空电导体,该孔的孔也包含油脂不透水介质4 沿其长度方向前进,纤维的前进速度受到限制。 由于U形细长构件在光纤周围横向折叠,所以不可渗透的介质在受控的压力下被注入到细长金属构件的孔中。 油墨不透水介质的一致性是将其注入到孔中的压力和速率以及赋予光纤3的约束程度使得在预定长度的导体中,光纤的长度 超过孔的长度受控程度,优选为1至3%。

    Overhead electric and optical transmission systems
    6.
    发明授权
    Overhead electric and optical transmission systems 失效
    架空电力和光传输系统

    公开(公告)号:US4491387A

    公开(公告)日:1985-01-01

    申请号:US411584

    申请日:1982-08-25

    摘要: A flexible stranded body, such as an electric conductor of an overhead electric transmission or distribution system, comprises at least one stranded layer of elongate elements of metal or metal alloy, at least one elongate compartment within and extending throughout the length of the stranded body and, loosely housed in the elongate compartment, at least one separate optical fibre and/or at least one optical bundle. Preferably, the elongate compartment extends within a circumferentially rigid central core which is surrounded by the stranded layer or layers but it may be a bore in an elongate element of a stranded layer or an elongate space bounded by two adjacent elongate elements.

    摘要翻译: 弹性绞合体,例如架空电力传输或分配系统的导体,包括金属或金属合金的细长元件的至少一个绞合层,在绞合体的整个长度内并在其延伸的至少一个细长隔室,以及 ,松散地容纳在细长隔室中,至少一个单独的光纤和/或至少一个光束。 优选地,细长隔室在周向刚性的中心芯部内延伸,该芯部被绞合的层或层包围,但是它可以是绞合层的细长元件中的孔或由两个相邻细长元件限定的细长空间。

    Overhead electric transmission or distribution system
    7.
    发明授权
    Overhead electric transmission or distribution system 失效
    架空电力传输或配电系统

    公开(公告)号:US4409429A

    公开(公告)日:1983-10-11

    申请号:US389683

    申请日:1982-06-18

    申请人: Bernard Gaylard

    发明人: Bernard Gaylard

    CPC分类号: H02G7/05

    摘要: Risk of fracture of an optical fibre in an overhead stranded electric conductor having an optical fibre loosely housed in an elongate compartment extending throughout the length of the conductor when the conductor is subjected to a tensile load greater than that which the optical fibre is designed to withstand is substantially reduced by supporting the stranded conductor from each of two opposite sides of a tower by suspension means incorporating a weak link designed to fracture at a tensile load less than that which the optical fibre can withstand before fracturing. An excess length of the stranded conductor extends between fittings at which the suspension means are secured to the conductor, is arranged sinuously down one side face of the tower and, where the stranded conductor is an earth conductor, is detachably secured to the tower at spaced positions along its length by releasable clips. When the tensile load on the stranded conductor increases to a value greater than that which the weak links can withstand, a weak link will fracture and the excess length of stranded conductor will be detached from the tower to reduce the load on the stranded conductor and thereby reduce risk of optical fibre fracture.

    摘要翻译: 当导体受到大于光纤设计承受的拉伸载荷的拉伸载荷时,在具有松动地容纳在延伸的细长隔室中的光纤的架空绞线导体中的光纤断裂的风险 通过悬挂装置的悬挂装置来支撑绞合的导体,所述悬挂装置包括设计成在断裂时的拉伸载荷小于光纤在压裂之前能承受的拉伸载荷的断裂。 绞合导体的多余长度在悬挂装置固定到导体上的配件之间延伸,在塔的一个侧面上向下垂直地布置,并且绞合的导体是接地导体的地方,其间隔开地可拆卸地固定到塔架 沿其长度的位置通过可释放的夹子。 当绞合导体上的拉伸载荷增加到大于弱连接能承受的拉伸载荷的值时,弱连接将断裂,并且绞合的导体的多余长度将从塔中分离,以减少绞合导体上的载荷 降低光纤断裂的风险。