rcd trips

[jstephens251]

Hi all

i have installed a supply to outbuilding. Consumer unit is a marbo 16th edition 5/5 split. i have completed all the outbuilding install - 4 way hager rcd hager board to supply 2x fittings and 2x sockets. all tests to outbuilding come out fine. today i went to install swa to this marbo board. tested ir on swa and everything ok. fitted 32a mcb to supply the swa on non rcd side of the board and rcd tripped
the board has a continues neutral bar, is this the problem? there is no seperation to neutrals for either side of board which doesnt seem right. any advice?

cheers

 

[msec]

Is there any existing load on the non RCD side of the board??

 

[jstephens251]

Is there any existing load on the non RCD side of the board??

yes there is 2 lighting circuits . other side has 2 rings and a cooker