OP
robbieb29
i'm a bit confussed, can a smoke detector be protected by an rcd on the smoke detector's own circuit. if the smoke detector has its own battery backup, can it be still be protected by rcd. Part P does state it should be on its own circuit, but should it be RCD protected. I'm thinking if if was and the RCD tripped and the battery was dead, then that smoke alarm would not work.