| 摘要 |
The invention relates to an arrangement and a method for detecting the jamming of an electromechanical switch in a current supply device controlled by the electromechanical switch and connected to a circuit, wherein electrical power is supplied to the current supply device (6) through a residual-current device (3) and the electromechanical switch (5) provided after the residual-current device in the circuit, and the circuit is provided with a controller (4). When the electromechanical switch (5) is jammed, i.e. the terminals of the switch are latched at an unwanted point of time, the residual-current device (3) is connected so as to trip and the circuit to open by driving the current past the residual-current device (3). |
