It's not a game. I can't answer your question since it should be apparent to anyone who understands how an RCD works that that a 'poor neutral connection', per se, simply can't cause an RCD to operate. If you believe that statement to be incorrect, you'll have to explain why, since I haven't got a clue why/how it could be incorrect.
Yes, I've seen that video. It's one of those 'esoteric' mechanisms I was referring to ... but that would require an intermittent connection, not simply a 'poor' one. I suspect that it’s more to do with the noise messing up the RCD’s electronic’s than actually creating a genuine L-N imbalance (even if only transiently) which gets detected. Having said that, as I said, I'm certainly not ruling out a damaged/faulty socket as one possible explanation for what the OP is experiencing.
I certainly would not bet against that - as I recently wrote:
However, EFLI's suggestion of a N/E swap at one or other end of the cable would also do it (even though I've never really understood how people can be so daft as to do that!).
They do, but I have personally very rarely seen them - most are 'normal' and the the earth terminal in them is so obviously different from the other two that two that to get it wrong must require either extreme daftness and/or a virtually total lack of understanding of even the most basic of things electrical!
No, I haven't (my experience of things non-domestic is next to zero). However, I have very occasionally come across sockets such as EFLI described, with the earth terminal within the plastic moulding, hence not looking much different from the other two. I've also dealt with ones like this:
I have some in my cellar which I took out of service (simply because they were no longer required, during some rebuilding) several years ago. The only marking they bear is "RPP" (as well as "PROV PAT" and "Made in England"), if that means anything to anyone. They bear no reference to BS1363 (or any other Standard), but they appear to have standard shutters.
Thanks - that would explain why they are marked "RPP"
I must say that I'd never heard of that brand.That's interesting. What do you think of that style of terminals?
Fair enough. As I said, I think there are definitely pros and cons. How would you feel if the terminals were 'triplets'?
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