This is baffling. I have a 13A socket which I have traced back to a consumer unit and its wired in as a spur off, nothing else is connected to the line. At the socket end I have measured 240V AC, all looks good and the polarity is correct. But as soon as anything is plugged in I cannot measure any current and whatever is plugged in does not work. The line does not trip in the consumer unit, and I have changed the faceplate in case that was somehow faulty. I am baffled!
Thanks in advance to any helpful suggestions...