Device for protecting the end of an electric cable against the e

Details Device for protecting the end of an electric cable against the e Device for protecting the end of an electric cable against the e

1992-05-28

1995-02-14

Nimmo, Morris H.

Electricity: conductors and insulators

With fluids or vacuum

Conduit or cable end structure

174 31R, H02G 1522

Patent

active

053897340

ABSTRACT:
A device for protecting the end of a high or very high tension electric cable having synthetic insulation from the effects of insulation breakdown, comprises an insulator and a metal enclosure defining a gastight chamber around said end, which chamber contains dielectric gas under pressure and that is separated from ambient air by a rupture disk provided in the metal enclosure. The device further includes a circularly symmetrical collar protecting said insulator and extending inside the chamber around said cable and terminating in a toroidal rim having a convex face directed towards the cable beyond the breakdown zone inside the chamber and at its end distant from the rupture disk. The device is applicable to protecting the end of a very high tension cable.

REFERENCES:
patent: 2835725 (1958-05-01), Nicholas
patent: 4403104 (1983-09-01), Dale

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