conductors in parallel

[eljefetaco]

If I am installing a new 400 amp service can I run just one number 3cu egc in one of the conduits? if i need to put it in both can I take the cmils of the number 3cu and find a smaller wire and put one smaller egc in each conduit? Not trying to save money I'm studying.

 

[augie47]

study 250.122(F) and tell us what you think :smile:

 

[eljefetaco]

Not much to think about it is all there. Thanks.

 

[don_resqcapt19]

Why are you installing an EGC with service conductors?

 

[eljefetaco]

that's a good point. no egc.