Aerial cable containing optical transmission elements and process for the manufacture of an aerial cable
    1.
    发明申请
    Aerial cable containing optical transmission elements and process for the manufacture of an aerial cable 失效
    含有光传输元件的航空电缆和制造航空电缆的工艺

    公开(公告)号:US20020041743A1

    公开(公告)日:2002-04-11

    申请号:US09877722

    申请日:2001-06-08

    IPC分类号: G02B006/44

    CPC分类号: G02B6/4419 G02B6/4422

    摘要: In addition to the mechanical stresses caused by wind, icing, etc., the manufacturer of an optical aerial cable has to consider the electrical stress mechanisms (corona discharge, nulltrackingnull effect) which lead to premature aging of the outer jacket by considering constructive measures and the use of special jacket materials. The outer jacket of the aerial cable contains several PE fusible fibers embedded into the jacketing material, whose conductivity is based on the content of carbon black in the amount of 10% of weight to 40% of weight. The resistance of these fusible fibers manufactured by coextrusion with the outer jacket is sufficiently low at 105 null/m-109 null/m, to discharge the induced electrical charges to the anchoring spirals fastened to the pole. No large potential differences in the longitudinal direction of the cable can occur on the wet, only partially dried jacket surface.

    摘要翻译: 除了由风,结冰等引起的机械应力之外,光纤架空电缆的制造商还必须考虑电气应力机制(电晕放电,“跟踪”效应),导致外护套过早老化,考虑到建设性 措施和使用特殊护套材料。 架空电缆的外护套包含嵌入护套材料中的几根PE可熔纤维,其导电率基于重量的10%至40%的量的炭黑含量。 通过与外护套共挤出制造的这些可熔纤维的电阻足够低,为105欧姆时/米-29欧米加/米,以将感应的电荷排出到紧固到极的固定螺旋上。 电缆长度方向上的电位差不会在潮湿的,部分干燥的护套表面上发生。