OP
Engineer54
Nothing wrong spurring off a ring circuit at the MCB/RCBO providing all the usual conditions are met. It tends to be lighting circuits/arrangements where you will see more than one conductor is found leaving the protective device, and more often than not in a domestic installation, that second conductor will be to provide a supply for a ELV doorbell transformer...
In many or most cases, yes it would be considered bad practice, but not in all cases!!
In many or most cases, yes it would be considered bad practice, but not in all cases!!
