As I've mainly done site work and moved into domestic recently, I'm a bit rusty on stuff like this, but if I'm adding a loft PIV unit to an existing lighting circuit via an unswitched fused spur, if the lighting circuit has no RCD protection am I allowed to install it?
Same question for if installing a new socket to a ring, or an extractor fan etc.
Same question for if installing a new socket to a ring, or an extractor fan etc.