| 摘要 |
An electrical box assembly for a facility being served with electrical power via a power supply line includes an indicator assembly electrically connected to the power supply line. The indicator assembly indicates whether power is being supplied from the power supply line. The indicator assembly includes a switch and an indicator operable to emit at least one of a visual and audible signal. Actuation of the switch causes operation of the indicator if electrical power is provided in the power supply line.
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