Hi i'm just starting out and looking to clear up a few things. Can i run 2.5mm twin and earth through conduit for a fused spur, i know about my cable calculations and have looked through the onsite guide but it just seems to refer to running single core cables in conduit. Just wondering with the added pvc insulation on twin and earth if there are any adjustments that need to be made or am i just calculating the size for 2x 2.5 mm cables and 1x 1.5 mm cable?.