| 摘要 |
FIELD: electric engineering. SUBSTANCE: device has insulated housing, input terminals which are connected to power supply line and to indicator. In addition device has sensor contact which is connected to resistor. Indicator is designed as comparison unit, first control unit, indication unit and power supply. In addition device has second control unit, commutation units and output terminals which are connected to class A electric appliances which are supplied with single-phase two-wire electric current. EFFECT: increased functional capabilities, increased safety against electric current injury. |
