I'm installing a subpanel to bring power to a garage. Answers to similar questions make it clear that a subpanel must isolate ground from neutral, so the bonding screw will be removed at the subpanel. The standard recommendation is to run /3wg cable from the main panel to the subpanel. But I've got some NM-B 8/2wg cable that I'd like to use. I believe that would allow: Either 120v service (a single pole breaker on the black wire at the main panel, white as neutral) Or else 240v service (a dou...
