I want to spur off a existing mains socket to one of these unswitched fused spurs:
https://www.screwfix.com/p/schneider-electric-lisse-13a-unswitched-fused-connection-unit-white/6916j
And then from this fused unit I want to fit it with a 3A fuse and run it to a USB power block which I will leave inside the cavity of the drywall. My question is from the mains socket to this unswitched spur can I run a 1mm or 1.5mm cable or does the cable have to be 2.5mm? Is it dependent on the load that the unswitched spur will supply?
https://www.screwfix.com/p/schneider-electric-lisse-13a-unswitched-fused-connection-unit-white/6916j
And then from this fused unit I want to fit it with a 3A fuse and run it to a USB power block which I will leave inside the cavity of the drywall. My question is from the mains socket to this unswitched spur can I run a 1mm or 1.5mm cable or does the cable have to be 2.5mm? Is it dependent on the load that the unswitched spur will supply?