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Rcbo keeps tripping

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Old leccy 007

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Hi just wondering if someone can help me.
I have an rcbo that keeps tripping but only when the fly earth and neutral lead on the bars it trips out.
Has this happened to anyone else.
I could just replace the rcbo as this could be faulty but don't want to do that if there could be another explanation.
Cheers in advance
 
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Old leccy 007 said:
Hi just wondering if someone can help me.
I have an rcbo that keeps tripping but only when the fly earth and neutral lead on the bars it trips out.
Has this happened to anyone else.
I could just replace the rcbo as this could be faulty but don't want to do that if there could be another explanation.
Cheers in advance
Click to expand...

Am I reading this correctly in that you've energised the circuit with neutral and earth flyleads disconnected?
 
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As with any circuit.... you don't take the neutral out and energise the circuit.... you've then got 230v looking for a return path....



Are you connecting it to the correct neutral bar? All depends on the type of board is gone in to... is this an old split board being added to? ...

photos are good.
 
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littlespark said:
As with any circuit.... you don't take the neutral out and energise the circuit.... you've then got 230v looking for a return path....



Are you connecting it to the correct neutral bar? All depends on the type of board is gone in to... is this an old split board being added to? ...

photos are good.
Click to expand...
So all the power is in and when I put the fly lead earth and neutral lead in it trips
 

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Can we see the rest of the board?

It looks to me like the board has been altered somewhat… ie so these first two slots are direct from mainswitch, the rest are through the rcd to the left….

Which means the neutral bar should be split…
 
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well the OP has disappeared, never mind, a shame really, it would have been nice to see this thread to the end.
 
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