| 摘要 |
<p>Apparatus for checking for leaks between the connection flanges of two portions of metal-clad electric gear, said flanges being sealed by means of two seals disposed concentrically in series on the facing surfaces of the flanges, the electric gear being filled with compressed gas, wherein the internal volume (10) lying between the two seals (6, 7) communicates with a smooth hole (11, 24) which itself communicates to the outside, the smooth hole being plugged by a resilient seal (18).</p> |
