Hello
i have a customer who currently has a 250Amp section board with no neutral conductor. (a 3 core cable installed for 3 phase and a separate earth) some new equipment is being installed that requires a neutral. I've been asked to get a neutral into the box.
is there any reason why i cant just add a separate neutral conductor. id argue its not best practice, but is it against regulation. ive had a good look and cant see anything that says no.
your thoughts and input are appreciated