Yes, a good point there that you do not want any joints in a CNE if at all possible.
My thought was for a separate run in parallel from one of the unused holes in the Wago set back to the incoming supply. Though without having a good idea of where it could be safely attached at the incoming board (I think there was a photo, but all have gone now).
If it had to be joined then yes, a line-tap 'oрехи' would be the way, but I would have hoped for a spare screw terminal on a strip at the board. I.e try to have any single point of failure for the CNE.
My thought was for a separate run in parallel from one of the unused holes in the Wago set back to the incoming supply. Though without having a good idea of where it could be safely attached at the incoming board (I think there was a photo, but all have gone now).
If it had to be joined then yes, a line-tap 'oрехи' would be the way, but I would have hoped for a spare screw terminal on a strip at the board. I.e try to have any single point of failure for the CNE.