LOCKING DEVICE INTENDED TO ENSURE SAFE ACCESS TO CABLE BOX OF ELECTRICAL CABINET AND ELECTRICAL CABINET WITH SUCH DEVICE Russian patent published in 2016 - IPC H01H9/26 H02B11/133 

FIELD: electricity.

SUBSTANCE: invention relates to electric engineering and is intended to ensure safe access to a cable box of an electrical cabinet. The cabinet comprises at least one electrical switch gear connected in series to earthing facilities of cables. At the side of the power supply line and the load side the cabinet is connected to at least one cable placed to the cable box comprising the rear panel, bottom panel, top panel separating the cable box from the compartment that includes the switch gear and the earthing facilities, two side panels and a door. The device comprises a body (11) that encloses a lock (12) and a counteractive lever (13). The body (11) is designed so that it is fixed at the inner side of a panel (21) of the cable box (3). The lock (12) interacts at one side with the door (4) and at the other side with a linkage system (17) for a door interlocking gear controlled by a shaft (7) of the earthing device so the that cable earthing command leads to unlocking of the door (4). The counteractive lever (13) interacts at one side with the door (4) and at the other side with the linkage system (24) for the purpose of locking a selector switch so that the movement of the selector switch (8) to the position, wherein opening or closure of the switch gear is ensured when the door is open, is prevented.

EFFECT: increased reliability and smaller size.

14 cl, 12 dwg