Sir Interesting requiremensts. What is the basis of 416V ?
Thanks, yet another Brian From: [email protected] [mailto:[email protected]]On Behalf Of Robert Johnson Sent: Wednesday, November 08, 2006 2:01 PM To: [email protected] Subject: Re: Worst Case AC Power Conditions It's also useful to know what your product does under non operating conditions. A common fault is open neutral and can happen anywhere from the power cord to across town. This leaves your equipment in series with other unknown loads from phase to phase. This is not something you should expect to use as an operating point. Planning operation under such conditions would appropriately require a UPS. However knowing what your equipment does is good safety practice. It may trip overcurrent protection or just sit and malfunction, but you don't want it to catch fire. Running it at a few operating points between 0 and 416 V gives you an idea of how it will fail. This is not a failure mode tested by the product standards. Bob Johnson ITE Safety - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to [email protected] Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas [email protected] Mike Cantwell [email protected] For policy questions, send mail to: Jim Bacher: [email protected] David Heald: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email ______________________________________________________________________
