Discuss Kitchen 3 gang isolator grid in the Electrical Wiring, Theories and Regulations area at ElectriciansForums.net

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Hi guys. I've had my kitchen 're fitted and in doing so 're wired. The hob and cooker both off of 32 ampseperate breakers in 6mm cable.
The rest is on a socket loop 2.5 mm cable in to a 32 amp breaker. But linked into the loop is a 3 gang isolator grid for cooker hood fridge and washing machine. We done this to not have seperate isolators dotted round the room. All the sockets tested fine and sockets spurred off of isololators are testing fine. Trouble is once you plug an appliance in it trips the 2 80amp rcd breakers in garage. Any ideas people?
 
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telectrix

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N-E fault. might even be on an unrelated circuit. when you connect a load, some of the current travels down the cpc instead of the N , thus causing RCD/s to see imbalance. a thorough test is advised.

or it could simply be a N conductor is terminated in the wrong bar in CU.
 

Taylortwocities

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Yes, you've probably connected the neutral into the wrong busbar in the consumer unit.

It sounds to me like this is a new circuit. Have you notified the LABC?
 

telectrix

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so quick , must have been a N in wrong bar.
 
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