>Most washers, dryers & dishwahers on the UK
>market now, do not exceed 2.4/2.5Kw.

Ah! Almost every large domestic appliance here in Sweden is now 2300W (= 10A). Domestic dryers and washers used to be 10A 3 ph. Guess what happened when they wanted to sell the same model in both UK, Germany and Sweden? Yes, that's correct: The least common denominator was 10A single phase. As more countries are added to the common market, all of which are rather poor, we aren't likely to see any change.