| 摘要 |
<p>PROBLEM TO BE SOLVED: To let the user know the fact that a contract current value is reached at a remote place in a house. SOLUTION: The alarm for contract current limiter comprises a current value measuring instrument disposed proximately to the downstream side of a contract breaker, a switch means for turning the circuit to the post-stage on when the measurement of the current measuring instrument reaches a contract current, an alarm signal generating section functioning upon turn on of the switch means, a section for transmitting a signal from the alarm signal generating section through an indoor wiring passage to the outside by means of a carrier, and an adaptor type apparatus being plugged in an indoor receptacle and generating an alarm sound based on a signal wave received from the signal transmitting section.</p> |
