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Discuss 17th edition board, one circuit feeding a board in a out building. in the Electrical Wiring, Theories and Regulations area at ElectriciansForums.net

You could also do as Durham suggested,

with the original MCB feeding the shed, instead of an RCBO at the house CU ie. feed the existing, MCB from the main switch, effectively creating a non RCD protected way.

This will then save you having to alter the shed CU, and give you the best of both, ie. the RCD local to the shed, and no effect on the house CU
 
when you remove the MCB you will have created a free way...!! shimmy the RCD along and install a piece of busbar from L out on main switch to feed your RCBO...!

what model CU have you got!! is teh Main switch in the middle or to the side!
Would such an alteration affect the type testing of the CU?
Would it comply with the manufacturer's instructions?
 
You could also do as Durham suggested,

with the original MCB feeding the shed, instead of an RCBO at the house CU ie. feed the existing, MCB from the main switch, effectively creating a non RCD protected way.

This will then save you having to alter the shed CU, and give you the best of both, ie. the RCD local to the shed, and no effect on the house CU

could do meaning keeping the rcd at the shed but jst coming off m/s into the mcb in house board.
 
could do meaning keeping the rcd at the shed but jst coming off m/s into the mcb in house board.

Yes exactly,
as then if the RCD in the shed trips for whatever reason you can reset it at the shed, also you will not need to buy any additional materials.
 

Reply to 17th edition board, one circuit feeding a board in a out building. in the Electrical Wiring, Theories and Regulations area at ElectriciansForums.net

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