Electrical cables
    1.
    发明授权
    Electrical cables 失效
    电线

    公开(公告)号:US3564110A

    公开(公告)日:1971-02-16

    申请号:US3564110D

    申请日:1969-01-31

    CPC classification number: H02G15/117 H01B7/2825 H01B11/00 H02G15/013

    Abstract: Entry of water and water vapor into the core and splice case of a cable is avoided, despite the puncturing effect of lightning, by surrounding the core with an overlapped-seam plastic-coated aluminum vapor barrier which is bonded to a surrounding polyethylene tube thick enough to withstand the inner radial force of a sealing gland in a splice case without distorting and leaking. Surrounding this tube and vapor barrier, to protect them from the effects of lightning, is a lightning-absorbing aluminum shield and an outer polyethylene jacket.

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