| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a power distribution board capable of preventing secondary disasters caused by starting of devices that were stopped due to power failure, after recovery of a commercial power supply. <P>SOLUTION: A power distribution board 11 has: a main power supply circuit breaker 11a inserted to a trunk electric circuit Wa1 to which power is supplied from a commercial power supply PS; branch circuit breakers 11b respectively provided to a plurality of branch electric circuits Wa2 branched from the trunk electric circuit Wa1 on a secondary side of the main power supply circuit breaker 11a to supply a power to devices K; a power failure detector 11d detecting power failure that is a stop of the power supply from the commercial power supply PS; and an opening/closing part 11c blocking power supply from the trunk electric circuit Wa1 to the branch electric circuits Wa2 in the case where the power failure detector 11d detected power failure. <P>COPYRIGHT: (C)2013,JPO&INPIT |
