Conduit and ground wire, what size?

[71blackcheyenne]

Running underground service to the new shop, single phase 240v, 2/0-3 wire cable, what size conduit & fitting do I need to use for this cable ? Also what size ground wire do I need to use ? Thanks, Ryan

 

[Gooch]

Running underground service to the new shop, single phase 240v, 2/0-3 wire cable, what size conduit & fitting do I need to use for this cable ? Also what size ground wire do I need to use ? Thanks, Ryan

way to many variables to give an answer.


type of conduit
type of wire
service or subfeeder
to what are you grounding


also, almost all of this is covered atleast once a week, you can find it easily with a search.

 

[71blackcheyenne]

Or in the time it took to write that u coulda just said use 2 1/2" conduit to make wire pulling easier and a #1 copper ground with an 8' x 5/8 rod, thanks for the help. This ain't rocket science, btw before I get flamed for this I got the info from my electrician friend whom I couldn't get ahold of earlier.

 

[Gooch]

Or in the time it took to write that u coulda just said use 2 1/2" conduit to make wire pulling easier and a #1 copper ground with an 8' x 5/8 rod, thanks for the help. This ain't rocket science, btw before I get flamed for this I got the info from my electrician friend whom I couldn't get ahold of earlier.

there was no way i could give any correct information. but 1 AWG to a ground rod is a waste of money, Not required to be larger than 6AWG, also unless you have a way to prove one ground rod has a resistance of less than 25 Ohms to ground, you'll need to drive two.

 

[pattenp]

If you are running 2/0 THWN 2" conduit is all you need.

 

[Norcal]

Why 2/0? It's too small for 200A.

 

[pattenp]

I didn't see where the OP said what size amp feed he was running. I assumed he was trying to get a full 100A feed. Never mind, I see he's running CU I was thinking AL