- Reaction score
- 186
40V between which two points exactly?
Neutral & earth
Discuss Earth leakage on sockets in the Electricians' Talk area at ElectriciansForums.net
40V between which two points exactly?
Neutral & earth
Yes, but where? Distribution board, accessory, where?
Sorry, I'm tired. ...Through all socket points tested & also using a voltage pen on the cpc teminal in the ccu
OK, are you measuring 40V between the DB earth bar and the neutral bar?
If so, then there's a high resistance somewhere in the cabling or components between those two bars and the supplier's head where they should be joined (as this is supposed to be TN-C-S).
As in the main switch, Neutral tail or main cut out connection?
Yes, if you have a significant voltage between N and E in the board when under load.
Worth checking for volt drop between incoming neutral terminal on main switch and neutral busbar.
I'd be checking tightness of terminals on main switch, link to neutral busbar, and anything else you can get at that isn't sealed up. Careful of any parts that aren't isolated, of course.
I'm sticking by my previous conclusion.
I'm thinking if the bonding was disconnected you would have 230v between the bars as I don't think you have a neutral.
Turn the main switch off and do a l-n loop test on the incoming side.
That will soon tell you.
Rather than guessing at different voltages.
Reply to Earth leakage on sockets in the Electricians' Talk area at ElectriciansForums.net
We get it, advertisements are annoying!
Sure, ad-blocking software does a great job at blocking ads, but it also blocks useful features of our website. For the best site experience please disable your AdBlocker.