I have an existing wire run from my main panel on the house to a detached garage with three wires: Red, Black and White. No ground. I want to install a new subpanel in the garage. I'll be installing grounding rod(s) for the subpanel.
- Since my subpanel will have it's own grounding rod, do I still need to keep the neutral and ground wires separate?
- Do I run my ground from the grounding rod directly to the ground/neutral bus?