I'm not sure that insisting on bringing a CPC to places where one is not required is always the best approach. I guess this can be used to verify RCD operation by introducing a fault to order whenever the light is switched on, or maybe the other end is not earth at all but is some cunning way of feeding power in a daisy chain to another location.
by a very small margin, I'd prefer to see that CPC cut back.
(really it should end neatly in a choc bloc single, or a wago or go under the head of one of the back box mounting screws. Flapping free sleeved but folded to a hairpin so the sleeving stays on also works if done well.)
We're about to take you to the IET registration website. Don't worry though, you'll be sent straight back to the community after completing the registration.Continue to the IET registration site