In regards to Article 300 Section 300.3(B), is it necessary to run the neutral in the same raceway or nipple when installing a emergency panel that is backed up by a generator and the "hots" are being routed from the main panel through a nipple to the transfer switches and back to the main panel? I hope this makes sense. The customer has all the "home runs" in the main panel and the neutral bus is in the main panel and the emergency panel, connected by a nipple. has no neutral bus. So the question becomes, does the emergency panel need a neutral bus? Should I run the neutrals of the branch circuits over to the emergency panel? Can I run a single neutral from the main panel to the emergency panel?
The manufacturer is saying "no neutral is needed in the emergency panel"
Edited by George Little (11/06/07 01:04 PM)