OP
super spark
The NICEIC do state that in the case of lighting circuits then its 1 conductor per protective device. Emergency lighting can be incorporated in to the circuit very easily, Its just lazy to insert a new circuit and expect it to comply. I am unclear as to how you would complete the details required on an installation certificate in such a circumstance. I would also mark this situation down as a contravention on a periodic inspection report as outlined by the esc in the best practice guide which has been agreed upon by all the regulatory bodies including; corgi, elesca, esc, niceic, nappit etc........... So if you dont take my word for it how about any one of them !