Going back to question - 1/Sockets etc should be fixed to permanent fabric of building - personally I think that includes kitchen units but some disagree
2/ Fixed kit like built in appliances muist be able to be isolated before removing whether that be FCU or socket in adjacent cupboard
3/ Free standing appliances can be pluged straight in behind unit ( so usually sso on wall)
4/
Cutting plugs off frequently invalidates warranty
5/ I also phoned MK sometime ago and believe they rate DSO at continuous 20A
Hope I haven't just re-itererated the same bumpf twice - I miss stuff cos I skim read