#### Sam Moore

##### Member

**1200A, 480/277v, 4-Wire, 3-Phase Service**

Service will have 2, 600 Amp Services Discos

Each Disco I'm going to have Paralleled 3" RMC's

In Each Parallel I figured 4, 350mcm THHN derated @ 80%= 560 Amps allowing for larger breaker/fuse size of 600 Amp (using Copper)

I figured Electrode Conductor of 3/0 Copper

**Then Service Feeder to Main Distribution Panel**

I figured 4, Paralleled 350 Thhn's with 3/0 Copper Ground or am I allowed to use a

1awg copper ground for 600amps?

I figured 3" RMC for both runs

I want to make sure I'm right, before I price this out,

Thanks in advance for any help with this!I figured 4, Paralleled 350 Thhn's with 3/0 Copper Ground or am I allowed to use a

1awg copper ground for 600amps?

I figured 3" RMC for both runs

I want to make sure I'm right, before I price this out,

Thanks in advance for any help with this!