| 摘要 |
PROBLEM TO BE SOLVED: To detect on-stick obstruction in a mode that current-carrying of a circuit is breaked and safety is ensured by using one means in common to a plurality of load apparatuses, when the non-stick obstruction in which ON continues is generated in a current-carrying on/off means to each of the load apparatuses, in an electric circuit device which performs current application to a plurality of the load apparatuses. SOLUTION: A first and second current carrying on/off means to a first and second load apparatuses, and an overcurrent breaking means common to the first and second load apparatuses are installed. When activation of the first load apparatus is required, it is prevented for the second means from being turned on, and the first means is turned on. When activation of the second load apparatus is required, it is prevented for the first means from being turned on, and the second means is turned on. When a current is applied to the first and second load apparatuses at the same time, the overcurrent breaking means is broken. |
