FIELD: electrical engineering.
SUBSTANCE: invention relates to the field of electrical equipment, in particular, to the electric installation blocking devices. It is achieved by the fact that the locking device is made in the form of an independent device, and the electric installation in the "on" or "off" states is blocked by one lock and the said conditions are determined by the electromechanical key of the locking device. One common key is used for all locks and identification of locks, and consequently, of electrical equipment with installed lock, not along lock control line, but by electronic mark built into lock and read by key controller. Presence of the computing device allows storing all possible logic circuits of switching of all electric installations in program form.
EFFECT: technical result consists in simplification of the locking device technical implementation and in improvement of the device operation reliability.
5 cl, 6 dwg
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