Originally posted by pauluk:
Can you confirm that I have interpreted the rules correctly here?
My understanding of the NEC (at least as it was until recetly) is that when a range or dryer outlet was wired directly to the main panel, then only a 3-wire outlet & cord (two hot plus neutral) was needed, the frame being grounded to the neutral.
If the branch was run from a sub-panel (in which N & G are separate), then a 4-wire hook-up was required to provide separate neutral & ground. Correct?
First time I read about this, it took some getting used to, as on our system we never ground an appliance frame to the neutral.
That is correct.
