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I was recently playing with my Amecal leakage current tester and found approx. 2mA when clamped around both tails at home, I put this down to the various tv's and game consoles on at the time, but when I clamped the MEC at the same time I found a fluctuating leakage current of anything between 200 and 300mA. The house is only about 50mtrs from the sub station (TNS btw and a Ze of 0.2 ohms) This has been bothering me for a couple of weeks now but last night we (the whole village) suffered a power outage for a couple of hours, ideal time me thinks for another test on the MEC, this time I measured a fluctuating current between 10 to 35mA and nothing on the tails (no surprise there!). I'm a little baffled now, could it be a pv system that is causing the leakage from a discharging inverter capacitor or perhaps the pv system generating as it was a full moon last night (not sure if moonlight would be strong enough to do this though.) Has anyone come across this situation before and found where the leakage is from.
Oh, I forgot to mention I disconnected the earth bonding to both gas and water and the leakage dropped to zero but went back up when either was reconnected. No voltage was present between the MEC and earth bonding conductors when separated which makes me think either it's 'ghost currents' (but never ever heard of this lol) or I've got myself a carp leakage tester or should I be worried and get the DNO involved?
Sorry for such a long post but I've tried to give as much info as poss.
Oh, I forgot to mention I disconnected the earth bonding to both gas and water and the leakage dropped to zero but went back up when either was reconnected. No voltage was present between the MEC and earth bonding conductors when separated which makes me think either it's 'ghost currents' (but never ever heard of this lol) or I've got myself a carp leakage tester or should I be worried and get the DNO involved?
Sorry for such a long post but I've tried to give as much info as poss.