From: <mkel...@es.com> > > Another potential problem I see with calling both a phase-to-phase > connection and a phase-to-neutral connection, "single-phase" is that it > presumes that all power supplies can be connected either way. What if a > vendor designs a system in which the power supply is changed many times over > the years? Can you be absolutely, 100% sure that any power supply that you, > or your successor, select will work with a phase-to-phase connection? Would > you bet your reputation on it? Would you bet your job on it?
Uh, yes - I have many times and do with the products I've worked on. That's part of my job responsibility. My original statement which may have been lost in translation was the following - *IF* you can connect either as input, you have a single phase system, AFAIC. Your examples are obviously valid if those are the issues at hand. But, they are outside my point and do not contradict what I originally said. If however these issues are surprises in the course of someone's job, then of course there's reason for concern. Regards, Doug McKean ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson: pstc_ad...@garretson.org Dave Heald davehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://www.rcic.com/ click on "Virtual Conference Hall,"
