SMB
Member
- Location
- North Charleston, SC
I have a 150kva, 415-delta to 208Y/120, dry type transformer. I am running the grounding electrode conductor (#1/0 per NEC as I am using 350MCM CU conductors on the line and load side-dont ask why!!) in a seperate 1" EMT from the load side single seperatly derived system connection to the grounding electrode system. I know the EMT needs a jumper on both ends from the conduit to metal casing. However, I can't locate in the NEC where this is covered. What size does it need to be and where is it in the 2008 NEC?
