waterproof connector for electrical apparatus isolates the gas, comprising a wide annular seal

The invention relates to an insulated electric apparatus with gas. The apparatus includes a first casing, a second casing and a connector (4) for sealingly connecting the first casing to the second casing. The connector (4) comprises an annular seal (6) surrounded by a collar (10). The annular seal (6) extends integrally along a longitudinal direction (XX) of the apparatus between a first contact area (66) with a flange of the first shell and a second contact zone (68) with a flange of the second envelope.