Mr. Woodgate has, once again, notified the compliance community of a significant issue.
I searched 61558-2-16 and found SMB/3209/R. This is not good. The prelim scope is "Switch Mode Power Supply incorporating a transformer". What is the motivation for YASS (Yet Another Safety Standard) ? > -----Original Message----- > From: [email protected] [mailto:[email protected]]On Behalf Of John > Woodgate > Sent: Monday, October 02, 2006 8:35 AM > To: [email protected] > Subject: Re: PSU confusion > > In message <[email protected]>, > dated Mon, 2 > Oct 2006, Brian O'Connell <[email protected]> writes > > >The scope of 61558-1 does not include SMPS, and mostly "targets" > >transformers. Other stds 61558-x series seem to designed to > scope only > >iso transformers. > > True; but the fertilizer approaches the fan, or appears to, with > 61558-2-16, still at the CD stage. > -- > OOO - Own Opinions Only. Try www.jmwa.demon.co.uk and www.isce.org.uk > Swine wave - a waveform whose spectrum is exceptionally > difficult to calculate. > John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK - 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 ______________________________________________________________________
