In article , "toller" wrote:

wrote in message
roups.com...
If you can't, then changing the circuit to 240v is trivial; the hard
part is
running the cable and that is already done.


I am curious don't you need thicker insulation at the higher voltage
and therefore cable rated for 220V and the correct amperage?. Also what
is the amperage rating of your saw?

I hope you are kidding.
You only get 120v in your house.

Ummmmm, no, not unless the house is really really really old and the
electrical service was never upgraded.

240v uses two hots,

Yep -- both of which are present in approximately 99.9999999% of the homes in
America.

120v uses only one hot
and a grounding conductor; so there is 120v on all the wires regardless of
whether it is 240v or 120v.

120V potential to *ground*, yes, but in a 240V circuit there is a 240V
potential between the two ungrounded conductors.

Besides, romex is generally rated to 600v.

In fact 240v is less demanding because the current is half that of 120v; he
could probably use #14 for his saw on 240v when 120v requires #12..

Correct.

--
Regards,
Doug Miller (alphageek at milmac dot com)

Nobody ever left footprints in the sands of time by sitting on his butt.
And who wants to leave buttprints in the sands of time?