It's possible that someone in the area was using equipment that caused your RCD to trip. A couple of years ago my neighbour (he lives quite a long way away but we are on the same overhead line) installed decking in his garden. The massive radial arm saw that the installers used tripped our RCD every time it was started up.
Hi All,
The other morning around 9 the RCD tripped (probably the second time since I fitted it 15 years ago). I reset it and all was fine. (I do test it now and again though)
The next morning at about the same time the power cut for about 30 seconds?
All has been ok for the couple of days since.
So, is it possible they (the electrical supplier) were doing something somewhere that would upset my RCD?
All the best ..
T i m
They aren't often fitted domestically but it is possible to get RCDs which switch off when the power goes off: most stay switched on. Their advantage is that if they are protecting (say) a power tool it won't suddenly spring back to life when the power comes back.
I may have got the wrong end of your post, but is it possible that this is what is happening in your case? I.e. short duration power cut causing the RCD to latch off?
Hwyl!
M.
Possibly even a low volt drop-out.
I have known cases where a fault external to the area protected by an RCD could result in the RCD tripping - its relatively rare IME, but can happen.
In the case i`m referring to, a customer at the end of a row of terraced housing fed by cleated ("mural") wiring had just had his installation overhauled and was suffering from nuisance trips. He`d had his installation tested by both his own electrician and the manufacturer of the RCD with no fault found, and after months of wrangling ISTR it was a fault in a neighbours' house causing it.
I wasn't aware of anything going on but who knows?
Cheers though ..
T i m
Hi fella ;-)
I don't think my (MK) RCD 'fails safe' as it hasn't dropped out before during a power cut (not that we get many round this way luckily).
The second day when we had the power cut it all came back on it's own?
All the best ..
T i m
Oooerr? I imagined the current sensing part of the RCD would be on it's output, but when it's switched on the input and output would be connected together anyway wouldn't they??
I think we are on the 'feed' end of the supply (I've seen some heavy cables under the pavement?) so would we be a delicate as those at the 'far' end?
All the best ..
T i m
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