Every new house owner will check their house after the OC obtained and handover by developer.
Recently we get our new house from developer and perform checking on the new house condition and found that some problem with the electrical wiring. We perform the socket test using a ELCB & Socket Tester. All the 3 lights will ON if the power socket is wired correctly.
Detected a power socket is without Earth, means the green wire is not properly connected.