I am putting RGB LED strip lights in a room, powered by a fairly heavy duty (30A) 12V transformer.
The transformer will also power a Raspberry Pi (volatage will be split to give it 5V)that will be used with a touchscreen to control light colour and function, and a motorised blind. There will also be a relay from the Pi controlling a couple of normal (mains) lights.
Given the "primary function" of the transformer is for lighting, I assume it should be on the lighting ring. (I guess the risk is with "forgetting" the motor etc is on the lighting ring.) Even though there is a high current draw at 12V, it is only 1.5A at 240V. There are only a couple of other lights on this circuit, so I think 1mm2 cable will be fine too.
Is this approach correct?