Abstract: Provided is a power distribution box distributing commercial electric power supplied from lead-in electric power lines into branch electric power sources and supplying the branch electric power sources to respective loads connected thereto. More particularly, the present invention relates to a power distribution box equipped with a resistive leakage current detector extracting a resistive leakage current simply and accurately from a resultant leakage current and causing leakage current interruption and alarm to be actuated according to the extraction result.

Abstract: Provided is a power distribution box distributing commercial electric power supplied from lead-in electric power lines into branch electric power sources and supplying the branch electric power sources to respective loads connected thereto. A power distribution box equipped with a busbar integrated electric meter includes: a main circuit breaker connected to lead-in power supply lines to which commercial power is supplied; a plurality of branch circuit breakers connected to power supply branch lines connected to respective loads; busbars including lead-out bars drawn out from the main circuit breaker, and a plurality of lead-in bars branched out from the lead-out bars and entering into the plurality of branch circuit breakers, respectively; and an electric meter measuring a power applied to each of the plurality of branch circuit breakers through each of the lead-out bars of the busbars.

Abstract: Provided is a power distribution box distributing commercial electric power supplied from lead-in electric power lines into branch electric power sources and supplying the branch electric power sources to respective loads connected thereto. More particularly, the present invention relates to a power distribution box equipped with a resistive leakage current detector extracting a resistive leakage current simply and accurately from a resultant leakage current and causing leakage current interruption and alarm to be actuated according to the extraction result.