FIELD: electrical engineering.
SUBSTANCE: invention can be used in electrical engineering. Device for monitoring earthing circuit of information processing equipment includes electric branch connected between current-conducting wire of supply mains and ground and including limiting resistor (R1) and electronic circuit formed by half-wave rectifier (diode VD1, capacitor C1), loaded on resistor (R2), comparison unit (comparators D1.1, D1.2, resistors R3-R7), AND logical element (transistor VT1, diodes VD2 VD3, resistors R8, R9), sound source (active piezoelectric transducer B1).
EFFECT: technical result-increase of efficiency of monitoring safety.
1 cl, 3 dwg
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