Re: Single and Three Phase power conection questions?
Probably so, but there have been some changes to the "Special Occupancies" in Chapter 5 and "Special Equipment" in Chapter 6 since the 2005 Code was released.
Local governments do not usually adopt the most recent Code immediately, some are probably still at 2003, many are at 2008.
Also note that it's up to individual states and municipalities to adopt whatever part of the Code they see fit; sometimes it's everything, sometimes parts are excluded (arc flash interrupters are excluded in Wichita because the builders assn claimed they would raise the price of new homes, so the city council chose to not adopt them), and some places have more stringent Code (Los Angeles, among them). When in doubt, call your local Authority Having Jurisdiction and ask which version of the Code is most prevalent.
