thetiler wrote:
My friend ran 10-3 wire from his power box to his new workshop
about 150 away, he says with 10 guage wire. He says it has three
wires so I assume this is what they call 10-3.

Don't assume. It may be 10-2 and he may be counting the ground.

He wants to buy a 60 gallon, 3 hp compressor, one of those $400
one's at tractor supply that are 240 volt and push about 10.3cfm
@90psi.

What does the manufacturer recommend? What are the amp specs for the
compressor? Not all 3 HP's are created equal and they don't all draw the
same current.


I'm worried that his wire is not heavy enough. I have (3) 4 guage
wires
running to my workshop which will run 75 amps, more than I'll ever
need.
He ran his wire before telling me, so it's already buried and done.

His wire looks awful small. I know when I run my portable
compressors to take out tile in people's homes, they will kick off 15
amp breakers all
the time. I need to find a strong plug like where the washer is
plugged in.
I know his larger compressor will demand a lot more juice to kick over
and run.

Will his 10 guage wire support the proposed compressor, or will
he ruin the motor on it as I suspect?
BTW, he is also running many shop lights in the shop, which will
add to the draw some.

Thanks for your help,

thetiler (not theelectrician)

--
Joseph Meehan

Dia duit