OP
Its probably induced voltage
Doh... I did read that, but read beyond it without actually considering plain old induction due to proximity to other wires....which I assume is what you mean.
you ask about other possible causes but without using correct meters to test the wiring we could speculate all day hence
The test "meter" back in post 21 is I assume what you mean by "correct" - is that not just a voltmeter? I expect we will be back to a multimeter reporting the same as the "meter" except with more accuracy....which I really must actually check with.
What test, other than to confirm the actual voltage above real earth is on N and the presented E?
Its probably induced voltage
you had your answer in post 2 and here we are at post 38
Yeh, but what great reading this thread made....:lips2: (joke.....)
@Telectrix - what make/model was that tester you posted...out of interest, or, where you just suggesting a generic probe type meter? Just checking incase it has other functions beyond volts/ohms/amps. I am a sucker when it comes to buying tools...
David