Electrical drop

[coach61]

on new three bedroom, 2000 sf home. What size wire should I use for about a 200 foot drop that has to be underground?

[hausdok]

Depends on service requirements for the house, doesn't it?

Did you swag an estimate of what it needs?

I usually don't concern myself too much with that. The power company is responsible for sizing that and they seem to almost universally use 2/0 copper around here and it seems to work fine for everything.

ONE TEAM - ONE FIGHT!!!

Mike

[coach61]

Thanks Mike

Called the electic company and they recommended 4/0 aluminum. Now all I need to do is dig the trench and lay it in.

[JARD]

Check your local elecctrical code. But I think it has to be 18 inches below grade.

[hausdok]

D'oh,

Just looked at the initial post again. I'd missed the "underground" when I'd responded. I don't think I've ever seen them use 2/0 copper underground in conduit here, it's usually 4/0 aluminum - which is what they told you they're going to use.

OT - OF!!!

M.

[Bill in Georgia]

NEC Table 300.5 gives the following cover requirements:

Burial Depth is 24" in yard if in cable

18" in yard if in PVC conduit

18" if under 2" in concrete in cable or PVC conduit

If cable is buried, it must be protected in conduit down to a depth of 18"