advice pls.if the sockets upstairs are already protected by rcd at cu.then can you plug your whirlpool straight in to the socket.or would you still put extra protection on to this circuit.also when instructions say you need to have a 5a fused spur could you there for spur onto your lighting cicuit which has a 5a breaker at cu.or is there something im totally missing ps the 5a fused spur is not for the whirlpool.thanks