| 摘要 |
The invention relates to a device ( 1 ) for monitoring the state of a protective device ( 2 ), wherein said protective device ( 2 ) comprises a first element ( 4 ) provided with an opening ( 5 ) and a second element 6 ) which is movable with respect to the first element ( 4 ) in such a way that the opening ( 5 ) is closable at least partially, the device ( 1 ) comprises a locking device provided with a locking element ( 18 ) by which the close state of the protective device ( 2 ) is removably lockable and is blocked in the currentless state of the locking device, said locking device is activable by the movement of the protective device ( 2 ) from the open to the close state thereof. Said invention is characterised in that the device ( 1 ) comprises a blocking device ( 40 ) provided with a b locking element ( 41 ) and said blocking element ( 41 ) prevents in the currentless state the activation of the locking device by blocking the blocking the movement of the locking element ( 18 ), thereby leading to the closed state of the protective device ( 2 ).
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