We will be fitting an electric oven and gas hob into the house we're
renovating. The oven needs a 13A supply and as such can go on the ring main.

My question is, should it be an ordinary 13A plug and socket arrangement
within the housing or maybe a switched fused connection unit above the
worktop (to act as an isolator) with a piece of 2.5mm T&E going down to some
sort of connector unit within the housing?

Cheers,

Mogweed.