A bushing

H - Electricity – 02 – G

Patent

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Details

H02G 3/22 (2006.01) F16L 5/00 (2006.01)

Patent

CA 2321850

The invention relates to a bushing for sealingly leading a cable, pipe or the like through a wall, the bushing comprising a frame of a rigid material, which can be sealingly fitted in an opening formed in the wall, and furthermore one or more parallelopiped blocks of a resilient material, such as rubber, which are built up of two identifical halves, which blocks, in their assembled condition, exhibit a bore which is adapted with small tolerances to the shape and the dimensions of a cable to be led through, which blocks are placed into the frame opening with a close fit in operative condition, wherein the halves are placed round a cable in enclosing relationship with respect thereto, whilst furthermore pressure means comprising a pressure plate are present, which press the blocks that have been placed in the frame opening together in the plane of the frame opening in their operative condition, characterized in that the blocks are electrically conductive and that they are in contact with an electrically conductive cable shield of the cable in the operative condition of the bushing.

L'invention concerne une traversée isolante permettant le passage hermétique d'un câble, d'un tuyau ou analogue, à travers un mur. La traversée isolante comprend un cadre en matériau rigide qui peut être ajusté, de manière hermétique, dans une ouverture ménagée dans le mur, ainsi qu'un ou plusieurs blocs en matériau élastique tel que du caoutchouc, constitués de deux moitiés identiques, et présentant lorsqu'ils sont assemblés, un trou adapté à la forme et aux dimensions du câble à passer dans le mur, avec de faibles tolérances. Lesdits blocs sont introduits avec un ajustement serré dans l'ouverture du cadre, les deux moitiés de chaque bloc enserrant un câble. Un organe de pression comprenant une plaque de pression est prévu pour presser les blocs introduits dans l'ouverture de cadre, dans le plan de cette ouverture. L'invention est caractérisée en ce que les blocs sont électro-conducteurs et qu'ils sont en contact avec un blindage de câble électro-conducteur lorsque la traversée isolante est mise en oeuvre.

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