I wouldn't believe a word I say, ericSchneider 10 mA RCBO £113.18 you can clearly get them, but does seem unlikely.
However if you say it is a 10 mA I have to believe what you say.
John
I wouldn't believe a word I say, ericSchneider 10 mA RCBO £113.18 you can clearly get them, but does seem unlikely.
However if you say it is a 10 mA I have to believe what you say.
Originally the boiler was on it's own dedicated circuit, controlled by a 5A MCB. The entire building was protected by one 100mA earth leakage breaker and it never tripped at all.As it's an RCBO, the problem may not be earth leakage - it could be tripping on overload or due to the starting current of the motor being too high. Particularly if it's a low rating, or there are other factors such as that RCBO being situated next to others which run at high loads for long periods, or it's in a location with high ambient temperatures.
Need to establish exactly what the RCBO ratings are, and where it's located relative to others, and in what environment.
There is also the possibility of the circuit wiring being damaged somewhere or other problems with the connections.
Fair enough. That's certainly good for your education but, as I implied, I don't think it's particularly relevant to your current issue/problem.The homework I'll do is to investigate eric's TT and TN systems......completely unknown to me but I understand them now!
The boiler circuit is original, jj - as it's original time clock broke down years ago I have it plugged into a 24hr domestic timer rated at 13A.
Once the boiler tripped for the first time, I rigged it up via an extension lead to the utility room ring main.....and it popped that too
That is fed via a 32A RCBO, presumably with the same mA rating.
So, the issue is definitely with the boiler somewhere.
Just for info, its a Thorn Panda 55 oil boiler....oldie but goody!
Thanks for your interest!
John![]()
If such is what you are suggesting, 'spikes', per se, should not cause an RCD or RCBO to trip (although some people think this may sometimes happen). If one were concerned about this, 'Surge Protection Devices' are becoming fashionable (and 'almost required by regs').Thanks John. Connecting a capacitor across the mains input.....as an anti spike device or am I barking up the wrong tree?
If such is what you are suggesting, 'spikes', per se, should not cause an RCD or RCBO to trip (although some people think this may sometimes happen). If one were concerned about this, 'Surge Protection Devices' are becoming fashionable (and 'almost required by regs').
Even though "it shouldn't happen", I don't think it would be particularly surprising if it sometimes does. Virtually all residusl current devices these days have electronics which 'trip' the disconnector and, just like anything else electronic, they can be susceptible to the effects of 'spikes' etc.I think spikes can do that, though I have little idea of how it might happen, just practical experience. ...
Nor would I.I would not expect any 'Surge Protection Devices' to be fitted at all.
Indeed. Filter/suppression capacitors between live conductors and earth (but not capacitors between L & N, which I think is what the OP was referring to) certainly have the potential to trip RCDs, particular if they become 'faulty'.If Burnerman cannot find another cause for the trip, I would be looking at any suppression caps in the circuit - those I would expect to find, to suppress interference.
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