thanks for reply. do i take absence of replies to mean no-one knows the answers and no-one has any usa experience. surely somebody cares if they are in a ditch and they cut through the110 volt cable on their handtool and live ends catch them?
thanks to all who replied including eric who kicked off the discussion.
i seem to have misled you all--
1 240v incomer has its own rcd on shortish lines to portable transformers
2 from tx to site tools lines are 2.5 artic
3 Q is there any safety merit in fitting 110v rcd [other...
sometime back[but still on this site] eric and co had a very interesting theoretical discussion about 110 transformers BUT in practice on site--
1 can you fit an rcd on the outgoing line from the 110v tx to the site tool
2 what protection would it provide
3 if 240v rcds are sold for domestic...