H
heathelect
Got to change a 3 phase, 24 way dist board that feeds a few small offices and a small distribution area, the existing old board (dorman smith) has no rcbos fitted to socket circuits just old type mcbs. Question is under the 17th do in need to fit rcbos to rings feeding office sockets (computers plugged in) + other small office equipment ? or can it be classed as a dedicated circuit used by "competent persons" and therefore be protected by an mcb ? wiring to these rings is in ceiling voids and 100mm studding, nothing buried in plaster or less than 50mm from the surface. your thoughts would be appreciated, thanks dave.