Jock from the north
Supporter
So not a long run then .you have a socket on your cooker switch .Best bet is to get an electrician in to work out the diversity and if you can replace the cooker switch with a normal switch unless of course you need it /are using it and that would help with loading .diversity is just a factor that seems to work and has done for years but only for normal use .if your using socket for a kettle say and your cooking xmas dinner there's always a chance the 32 mcb will trip.best to get an electrician in to have a look .they may be able to run in a new cable for oven although your rcd side of board is full .they may be able to fit a different type of rcbo on other sideThe cable is a direct 8 metre run under floorboards