In article .com,
wrote:

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?


Most power cords are rated for 600V. Code I think. The neat part is
that neither side of the 220V circuit is further from ground/neutral
than the hot side of the 110. Of course, if you should happen to get a
hot leg of the 220 in EACH hand at the SAME time, that would be bad(tm).
As a matter practice, I make it a point to avoid EVER handling wires
(which THINK are dead) in such a way that that I am holding a pair of
wires, one per hand. My mom once walked into a room where my dad was
wiring overhead lights, and she said, "Here, let me turn on the light so
you can see what you're doing". Things got tense.

What ever the case you should talk to your electrical inspector or
licensed electrician, not take newsgroup advice on this,which is worth
what you paid for it.

--
Dana Miller