| 摘要 |
The fluid-tight passage (1) to carry an electrical wire or optic fiber (2) through the wall of a pressure zone (3) has a housing (4) with two seals (5a,5b) around the wire. The two seals define a hollow zone (4d) between them in the housing, with a pressure relief opening (4c) to the ambient atmosphere (6) outside the pressure zone. |
