Quoting to do the electrics in a gym where the DB needs to be upgraded from single phase to a three phase because they are having 3 electric showers & a sauna. All the existing circuits are on MCBs apart from a couple of socket circuits which are on RCBOs
When I change the DB would I have to RCD or RCBO protect all the circuits with cables buried in walls, 18 circuits in total.
or, this is classed as a commercial premises where electrical installation is controlled by skilled persons, so I could RCBO all the sockets & showers and leave lights on MCBs.
Thanks
When I change the DB would I have to RCD or RCBO protect all the circuits with cables buried in walls, 18 circuits in total.
or, this is classed as a commercial premises where electrical installation is controlled by skilled persons, so I could RCBO all the sockets & showers and leave lights on MCBs.
Thanks