| 摘要 |
The invention relates to a protection device which defines a through hole ( 21 ) for the passage of a fluid which may be under overpressure conditions. In addition, the inventive device comprises: a stop plug ( 26 ) which can move between an open position and a position in which a first section of the hole ( 21 ) is sealed; a stop valve ( 28 ) which can move between an open position and a position in which a second section of the hole ( 21 ) is sealed; and means ( 22, 23, 27 ) for triggering both the movement of the stop plug ( 26 ) and the movement of the valve ( 28 ) from the open position to the sealing position in response to an overpressure (P<SUB>2</SUB>) in the hole ( 21 ). The invention is particularly suitable for self-contained equipment used to supply electrical power by means of a fuel cell.
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