Just going through my phone and found this video from a few years ago.
This was a brand new TP&N dist board installed at a church by the firm I was working for at the time.
Supply was standard TNS on a 100A incommer.
The two circuits concerned tested out fine for IR L>N L>E E>N and also all combinations of LNE between the two circuits to prove there were no interconnections.
Can anyone work out how this could possibly happen??
This was a brand new TP&N dist board installed at a church by the firm I was working for at the time.
Supply was standard TNS on a 100A incommer.
The two circuits concerned tested out fine for IR L>N L>E E>N and also all combinations of LNE between the two circuits to prove there were no interconnections.
Can anyone work out how this could possibly happen??