We spec an operating altitude to 3000 m (10,000 feet. sometimes 9800 or 9500 ft, depends on who did the math). We have moved most of our power supplies to 5000 m in the CQC report for the supply in order to allow us to claim compliance with the safety requirement to 5000 m in China. We have not increased the operational altitude spec.
Gregory H. McClure Lexmark Product Safety 859 232 3240 office 859 232 6882 fax On Thu, Sep 5, 2013 at 4:49 PM, Mark Gandler <[email protected]>wrote: > Hi there,****** > > **** > > Wanted to get some simple data point based on your experiences across > different companies and industries: what are an altitude levels been used > while evaluating 60950-1 isolation requirements? By default you get 2000m, > how many of you used different levels? **** > > This is driven by 5000m CCC requirement and some critical power supply > component limitations. **** > > If there will be enough responses, I’ll send back statistical breakdown. * > *** > > **** > > Thank you for reading,**** > > Mark**** > - > ---------------------------------------------------------------- > > This message is from the IEEE Product Safety Engineering Society emc-pstc > discussion list. To post a message to the list, send your e-mail to < > [email protected]> > > All emc-pstc postings are archived and searchable on the web at: > http://www.ieee-pses.org/emc-pstc.html > > Attachments are not permitted but the IEEE PSES Online Communities site at > http://product-compliance.oc.ieee.org/ can be used for graphics (in > well-used formats), large files, etc. > > Website: http://www.ieee-pses.org/ > 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]> > - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected]> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ 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]>
