| 摘要 |
<p>The invention relates to an electrical installation including an active induction portion, a vessel surrounding the active portion and filled with a dielectric fluid and a plurality of devices for reducing the noise of the waves originating from the active portion and propagated in the fluid. Each noise reduction device includes: a hollow and sealed housing suitable for being exposed to mechanical waves via one of the surfaces thereof, vacuum-tight means suitable for maintaining the surfaces of the housing within the elastic limit thereof when the housing is subjected to the vacuum pressure from the outside. The housings of the devices are structural elements arranged so as to be evenly spaced apart and to form a barrier spaced apart from the walls of the vessel. The invention is a simple and effective solution for ensuring the vacuum resistance of the housings when placing the interior of the vessel under vacuum.</p> |
