Posted by Circuits Arena on Wednesday, 16 December 2015
Simple Light and Sound Indicator for Mains Power Supply is the artlcle explaining Simple Light and Sound Indicator: when you are repairing electrical machines in a home or building, when power supply is swi...
Simple Light and Sound Indicator:
when you are repairing electrical
machines in a home or building, when power supply is switched off from
the mains electrical switchboard installed outside the building. There
is a chance that someone who is not aware of the same may switch on the
mains from outside. This poses a great danger for the technician working
inside. Hence, an indicator like the one described here, which can be
plugged into a nearby mains wall socket, might prove very useful for the
technician.
