Yes I was prepared to give the OP the benefit of the doubt but 'weather' and 'arctic' certainly raised my concerns.Maybe (s)he wasn't, and wasn't thinking of, wiring circuits - the question said nothing about that My view tends to be that we should ascertain exactly what we're dealing with (sometimes it's apparent from the OP!) before offering 'negative'or critical responses.You shouldn't be wiring circuits or thinking of wiring circuits if you don't already know the answer to the question.
Kind Regards, John.
This concern was re-enforced by the OP raising the same issue, though in more detail, on a 7 year old post at 2039hrs //www.diynot.com/forums/viewtopic.php?t=18448&start=15.
You also have to ask yourself why the OP took five posts before he put the issue in context in this post.
So if you don't mind I will still take the view that the OP is out of his depth or is a Troll.
If he is indeed not a cousin of vibro and a genuine registered electrician I would have expected a more comprehensive outline of the issue and not having to pick up the context by moving from one post to another.