On Fri, 16 Mar 2012 14:02:12 +0000, John Rumm wrote:

Two 3kW kettles probably would take out the plug fuse in under a minute.

Thats not quite a 100% overload. I think the average BSwhatever
plug top fuse would last longer than that(*). Wether the plug top
could take the heat generated is another matter...

(*) Wonkypeida says for a 13A fuse 1-400s @ 30A (6.9kW). My
experience of urns and kettles on the same 13A plugtop is that it
take quite a number of minutes for the fuse to blow and the plug top
melts as well.

--
Cheers
Dave.