Breaker and wire size?

I think Scott is referring to type NM (Romex) cable. You can us the two wire
(Black and White) with a bare or Green ground wire for strictly 220V
circuits. It may be run in metal or plastic conduit. Metal conduit must be
grounded with an accepted method. However it is necessary to reidentify the
White wire with colored (Other than White, Green or Gray) tape at ALL
terminations.

Appliance current, in AMPeres will determine the wire size and current
protection. Continuos load can not exceed 80 % of wire capacity. For all
110/220V circuits 3 insulated wires (Two colored and one White or Gray)
along with a ground wire is required.

BOY, Brown, Orange and Yellow with a Gray or White neutral is being
recognized for 120/277V 3 phase circuits, But not mandatory. Green, White or
White striped and Gray are still the only designated purpose colored wires
for wiring.

Hope this helps.
--
Chipper Wood

useours, yours won't work


"Scott Lurndal" <[email protected]> wrote in message
news:[email protected]...
> "KRead" <[email protected]> writes:
> >Is this a 2 wire (black, white & copper ground), or 3 wire (black, white,
> >red & copper ground)?
> >
>
> None of the above. A 220V 20A circuit can be wired with a blue wire,
> brown wire and green wire.
>
> The only code color requirements are for the grounding and grounded
connections.
>
> (grounding green, or grey with green stripe)
> (grounded white (or under certain circumstances white stripe or other
> white marking - not applicable to residential wiring generally)).
>
> scott

Sorry Scott,

I only read the posting included in my post. White is universally recognized
as a neutral, Green or bare as a ground. So one would not do wrong in using
those colors. Unless there is a need to universally identify phase, running
2 or 3 black wires as ungrounded conductors is acceptable. Sounds like you
are involved in a large project. (750s) Power companies have the option to
use one bare derated neutral/ground for services.

--
Chipper Wood

useours, yours won't work
>
> Actually, while the above is correct, I was referring specifically to the
identification
> of grounded conductors in traditionally industrial/commercial settings
where
> 000/0000/750MCM may be run using black AL cable for the grounded conductor
and is then
> marked appropriately at each termination point. Often occurs on service
drops as
> well.
>
> scott

I'm not an electrician... but I would (and did):

20 amp breaker
12 gauge wire (opt for the 10 if you want, but not needed).

-jbd

"Tony" <[email protected]> wrote in message
news:Db71c.368$E%[email protected]...
> Hi, I think I've finally decided on my new table saw, the Grizzly model
> 1023S, 3hp cabinet saw. Should I go with a 20 or a 30 amp breaker?
And,
> should I go with 10 guage or 12 guage wire?
>
> TIA,
>
> Tony
>
>

"Plane Truth" <[email protected]> wrote in message news:<[email protected]>...
> I ran a 20 Amp breaker / 12 guage wire for my Delta 3 HP. In theory it
> should have been more than sufficient....but about every 25th time I turn it
> on, the breaker pops. I'm moving to a new house next month and you can be
> sure that I'll be running 10 guage wire on a 30 amp breaker.
>
> Hope this helps!



Same thing happens with my 3Hp saw on 220V 20A breaker.
Maybe not as often as every 25th time, but it does happen.
I called the manufacturer and he said that the motor can pull
over 30A momentarily at startup. I have no plans to change the
breaker, eventhough it is 10 ga wire.
Ken

"KRead" wrote in message
> Is this a 2 wire (black, white & copper ground), or 3 wire (black, white,
> red & copper ground)?

Two conductor w/g.

--
www.e-woodshop.net
Last update: 2/28/04

I ran a 20 Amp breaker / 12 guage wire for my Delta 3 HP. In theory it
should have been more than sufficient....but about every 25th time I turn it
on, the breaker pops. I'm moving to a new house next month and you can be
sure that I'll be running 10 guage wire on a 30 amp breaker.

Hope this helps!

"Tony" <[email protected]> wrote in message
news:Db71c.368$E%[email protected]...
> Hi, I think I've finally decided on my new table saw, the Grizzly model
> 1023S, 3hp cabinet saw. Should I go with a 20 or a 30 amp breaker?
And,
> should I go with 10 guage or 12 guage wire?
>
> TIA,
>
> Tony
>
>
>

"Tony" wrote in message
> Hi, I think I've finally decided on my new table saw, the Grizzly model
> 1023S, 3hp cabinet saw. Should I go with a 20 or a 30 amp breaker?
And,
> should I go with 10 guage or 12 guage wire?

I ran 10 ga/20A circuit to my table saw. While 12 ga would have been
sufficient, when you're pulling wire you might as well go one up in case you
want to upgrade in the future ... it is usually easier, and cheaper, to do
it now instead of later.

--
www.e-woodshop.net
Last update: 2/28/04

220v
KRead <[email protected]> wrote in message
news:[email protected]...
> Is this a 2 wire (black, white & copper ground), or 3 wire (black, white,
> red & copper ground)?
>
>
> "Swingman" <[email protected]> wrote in message
> news:[email protected]...
> > "Tony" wrote in message
> > > Hi, I think I've finally decided on my new table saw, the Grizzly
model
> > > 1023S, 3hp cabinet saw. Should I go with a 20 or a 30 amp breaker?
> > And,
> > > should I go with 10 guage or 12 guage wire?
> >
> > I ran 10 ga/20A circuit to my table saw. While 12 ga would have been
> > sufficient, when you're pulling wire you might as well go one up in case
> you
> > want to upgrade in the future ... it is usually easier, and cheaper, to
do
> > it now instead of later.
> >
> > --
> > www.e-woodshop.net
> > Last update: 2/28/04
> >
> >
> >
> >
> >
>
>

In article <Db71c.368$E%[email protected]>,
Tony <[email protected]> wrote:
>Hi, I think I've finally decided on my new table saw, the Grizzly model
>1023S, 3hp cabinet saw. Should I go with a 20 or a 30 amp breaker?

The purpose of the breaker is protection of the wiring and the saw.
So you should size this to suit the 3hp motor. I'd have to look up the
recommended size.

>And, should I go with 10 guage or 12 guage wire?

It never hurts to have larger wire (except for the initial cost and
the slight extra work in installation) and it buys you more flexibility
in the future. So I vote for the heavier wire.
--
--henry schaffer
hes _AT_ ncsu _DOT_ edu

Is this a 2 wire (black, white & copper ground), or 3 wire (black, white,
red & copper ground)?


"Swingman" <[email protected]> wrote in message
news:[email protected]...
> "Tony" wrote in message
> > Hi, I think I've finally decided on my new table saw, the Grizzly model
> > 1023S, 3hp cabinet saw. Should I go with a 20 or a 30 amp breaker?
> And,
> > should I go with 10 guage or 12 guage wire?
>
> I ran 10 ga/20A circuit to my table saw. While 12 ga would have been
> sufficient, when you're pulling wire you might as well go one up in case
you
> want to upgrade in the future ... it is usually easier, and cheaper, to do
> it now instead of later.
>
> --
> www.e-woodshop.net
> Last update: 2/28/04
>
>
>
>
>

"Henry E Schaffer" <[email protected]> wrote in message
news:[email protected]...
> In article <Db71c.368$E%[email protected]>,
> Tony <[email protected]> wrote:
> >Hi, I think I've finally decided on my new table saw, the Grizzly model
> >1023S, 3hp cabinet saw. Should I go with a 20 or a 30 amp breaker?
>
> The purpose of the breaker is protection of the wiring and the saw.
> So you should size this to suit the 3hp motor. I'd have to look up the
> recommended size.
>

I dont think so.. The breaker protects the building wiring. If it also
protected what was plugged in to the building wiring all the buildings
wiring would be wrong. Vacuum cleaners, computers, TV's, Kitchen
appliances would be under protected. If the machine or appliance needs
protection it should have a thermal protector built in... Come to think of
it most do.

20 amp should be fine on a 3hp motor

Frankly, I prefer to go with the heavier wire unless forced into the
samller. I would use 10ga in my shop/wiring for this

John
On Tue, 2 Mar 2004 16:48:25 -0500, "Tony" <[email protected]>
wrote:

>Hi, I think I've finally decided on my new table saw, the Grizzly model
>1023S, 3hp cabinet saw. Should I go with a 20 or a 30 amp breaker? And,
>should I go with 10 guage or 12 guage wire?
>
>TIA,
>
>Tony
>

"KRead" <[email protected]> writes:
>Is this a 2 wire (black, white & copper ground), or 3 wire (black, white,
>red & copper ground)?
>

None of the above. A 220V 20A circuit can be wired with a blue wire,
brown wire and green wire.

The only code color requirements are for the grounding and grounded connections.

(grounding green, or grey with green stripe)
(grounded white (or under certain circumstances white stripe or other
white marking - not applicable to residential wiring generally)).

scott

"Chipper Wood" <[email protected]> writes:
>I think Scott is referring to type NM (Romex) cable. You can us the two wire
>(Black and White) with a bare or Green ground wire for strictly 220V
>circuits. It may be run in metal or plastic conduit. Metal conduit must be
>grounded with an accepted method. However it is necessary to reidentify the
>White wire with colored (Other than White, Green or Gray) tape at ALL
>terminations.

Actually, while the above is correct, I was referring specifically to the identification
of grounded conductors in traditionally industrial/commercial settings where
000/0000/750MCM may be run using black AL cable for the grounded conductor and is then
marked appropriately at each termination point. Often occurs on service drops as
well.

scott

>
> Appliance current, in AMPeres will determine the wire size and current
>protection. Continuos load can not exceed 80 % of wire capacity. For all
>110/220V circuits 3 insulated wires (Two colored and one White or Gray)
>along with a ground wire is required.
>
>BOY, Brown, Orange and Yellow with a Gray or White neutral is being
>recognized for 120/277V 3 phase circuits, But not mandatory. Green, White or
>White striped and Gray are still the only designated purpose colored wires
>for wiring.
>
>Hope this helps.
>--
>Chipper Wood
>
>useours, yours won't work
>
>
>"Scott Lurndal" <[email protected]> wrote in message
>news:[email protected]...
>> "KRead" <[email protected]> writes:
>> >Is this a 2 wire (black, white & copper ground), or 3 wire (black, white,
>> >red & copper ground)?
>> >
>>
>> None of the above. A 220V 20A circuit can be wired with a blue wire,
>> brown wire and green wire.
>>
>> The only code color requirements are for the grounding and grounded
>connections.
>>
>> (grounding green, or grey with green stripe)
>> (grounded white (or under certain circumstances white stripe or other
>> white marking - not applicable to residential wiring generally)).
>>
>> scott
>
>