Pop` wrote:
Charley wrote:
A 3 hp single phase 220 volt saw motor will draw about 17 amps full
load, which is already more than 14 ga wire is rated for, but the
starting current of that motor can be 150% or more of the full load
current, so a 14 ga wire is WAY TOO SMALL. You should be looking for
wire that will carry more than 25 amps. A 10 ga wire is the right
choice for a relatively short cable, but you should go to an 8 ga
wire if the full length of the wire from the breaker panel to the saw
will be longer than about 100 feet.

You are completely neglecting that the total current, on a 220 line,
is split between the conductors, meaning you're all wet here. Jeez,
a little knowledge is a dangerous thing. Even your 150% number is
way off.

You're confusing 220v single phase with 3 phase. In single phase 220
the current is no more "split between the conductors" than it is in 110v
single phase. 17 amps goes out on one, comes back on the other, the
direction reverses 60 times a second.

You're right that a little knowledge is a dangerous thing. Let's hope
you don't burn anything down before you acquire more.

"fireant" wrote in message
...
Want to replace current 10' cord with 25' cord.
Is 14-3 large enough?

Saw is 3 HP 220V. TIA, F

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