Importance

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Abstract

A safety device of the present invention copes with diverse abnormal conditions, and securely interrupts a driving current of an electric appliance by being combined with a normally used current interrupter. For example, a current interrupter that senses immersion or a ground fault is arranged in a power plug 50 at an end of a power cord 26, and a power switch 31 is connected to one power line 32-1, which is drawn from the power cord 26 to the inside of a hair-dryer 25, and a first sensor 34 and a second sensor 39 of a normal-time open-circuit type, which close a circuit when sensing an abnormal condition, are respectively arranged in a grip part 27 and an air blowing part 28 between the other power line 32-2 and the sensing line 33. When the sensor closes a circuit under abnormal conditions, a current flows into the sensing line 33, and the same state as that at the time of immersion or a ground fault emerges on the side of the current interrupter, so that the current of the hair dryer is immediately interrupted.

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First Claim