Actually it is not for any installation I am planning. What happened was I was at the supply house when I overheard one of the counter guys telling a customer(DIY) he could run a 3 wire feed to a detached garage. The scary part was he told him he could do all the grounding at the garage with ground rods with no mention of bonding the grounded conductor. I butted in and told him he was wrong on both counts. At that point all the counter guys told me the local inspector told them it was ok. The code language on the number of conductors required is not clear to say the least (surprise).
Aside from the number of conductors required, it was obvious they didn't understand the importance of bonding the grounded conductor where no EGC exists. They really believe the ground rods will take care of that. One of them argued that the grounded conductor is already bonded at the main service.
I feel like I should've just kept my trap shut.
