>I don't suppose you happened to find out
>exactly when the BS1363 plug was introduced
>as an official Irish standard?
No, sorry!
>Designing the ring so that the current
>doesn't exceed 20A on any part would
>require a certain minimum length of cable
>from distribution panel to the first
>socket, worked out as a percentage of the
>overall ring length.
You can do the calculations, but someone had calculated that you "loose" 16% at the start and just as much at the end of the ring, making one third of the ring "passive".
