I'm not so sure about this 'obvious'. the information we were given would be compatible with any of the explanations suggested - it just happens that you were rightI've only just seen this thread, but it seems really obvious to me that the fault is simply an open circuit neutral and there is a load connected to the circuit somewhere. I can't beleive no one else worked that out
Yes, I realise that, but I'm still intrigued by the fact that you claimed to know that it was not an LE reversal (and, indeed, knew what the problem actually was) on the basis of what you had told us alone (which you assured us was the case) - since, as I said, the measurements were compatible with any of the three explanations.I did drop a bit of a hint that the fault was not actually LE reversal....
Arrrrgggghhhhh!!
I have omitted something.........................I meant to say in the first post of the thread that all sockets and terminations at the board were wired up correctly.
It's not that surprising, is it? As we discussed, the measurable L-N, L-E and N-E voltages were exactly as one would get with a L-E reversal, and I presume these testers simply look at the voltages. If it did not report that pattern of voltages as an L-E reversal, it would presumably never report an L-E reversal, even when one was present.
I don't know.
If we were talking DC supplies, that would be the obvious way. Given we have AC, I presume that these gadgets have to try to may inferences about reversals simply from the PDs it can see between the three pins.
Again, I don't see it as all that strange - given that those are the very PDs one would see with an L-E reversal. Even when one uses a 2-pole tester, if all one has to look at are the three conductors at the socket, those voltages would (as we've seen!) lead one to conclude that an L-E reversal was one of the possibilities.
As above, I think you may be being a little unkind to them. They are presumably no worse than 2-pole testing IF all one has to test are the three wires/terminals at the socket.
One hates to think. The 'obvious' thing to do would be pretty catastrophic. Hopefully many Mr. Publics would have the sense to call for help, particularly if they knew that having a bare copper L 'could not be right'!!
I have omitted something.........................I meant to say in the first post of the thread that all sockets and terminations at the board were wired up correctly.
I'll get my coat....
Indeed. He did initially describe it as a "butchered RF circuit", so maybe he also forgot to mention to us that all the affected sockets are on a spurIf this was the case, I fail to see how you can have an open circuit neutral on a ring final - unless, of course, your talking about two faults (as in the neutral broken in two different places).........which kind of complicates things and is a bit misleading.
I have omitted something.........................I meant to say in the first post of the thread that all sockets and terminations at the board were wired up correctly.
No, I thought it did when you suggested it, but it doesn't.If you're talking about rotating them like I suggested earlier, I think you'll find it would give the same voltages.
Why not?
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