Three Pin Socket Tester. Home Utility Circuit.19


3We use a number of Three Pin Sockets in our home. It has three connections- Phase, Neutral and Earth. Earth connection is an important safety measure to bleed the leakage current if any from the device using. In a Metal bodied device, if there is current leakage, there is the possibility of shock hazard . So the Earth connection should be intact to bleed the leakage current. How can we check whether the Earth connection is intact or not. The AC Tester check will not give the result because there is no current in Earth line. No problem, this tiny circuit will confirm whether the Earth connection is intact or not. The Green LED lights if the earth connection is intact, otherwise not. It is too simple, and can be enclosed in a Three Pin Socket itself.
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