using a #6 copper ground with aluminum feeders

[rydan]

I have a neighbor running 3/0 aluminum wire to feed a 150 amp panel for his shed. Will the inspector have an issue with using a #6 copper ground wire. ?

 

[infinity]

According to the NEC a copper EGC is fine with aluminum feeder conductors.

 

[petersonra]

I have a neighbor running 3/0 aluminum wire to feed a 150 amp panel for his shed. Will the inspector have an issue with using a #6 copper ground wire. ?

take a look at table 250.122. note that the minimum size of the EGC is determined solely by the rating of the upstream OCPD and can be either AL or CU as noted in the table.

 

[ggunn]

I have a neighbor running 3/0 aluminum wire to feed a 150 amp panel for his shed. Will the inspector have an issue with using a #6 copper ground wire. ?

If you are asking whether there is a problem with pairing a copper grounding conductor with aluminum circuit conductors, the answer is no.

 

[jaylectricity]

I've never done it, but can you use aluminum to a ground rod? Would you use #4 instead of #6 Cu?

 

[ActionDave]

I've never done it, but can you use aluminum to a ground rod? Would you use #4 instead of #6 Cu?

Can't have a Al GEC touching the earth, but you can use it for a water bond or building steel bond.

 

[jaylectricity]

Can't have a Al GEC touching the earth, but you can use it for a water bond or building steel bond.

I think I'm going to start doing that. The water bond, I mean.

 

[kwired]

I think I'm going to start doing that. The water bond, I mean.

Make sure to use a bonding clamp rated for aluminum conductor. They are not so rare that that you should have a hard time finding them though.