Charlie, > Another option is that you might choose to use you FCC part 15 mains > conducted emissions measurements to support you EU DoC, rather than > repeat the test at 230V, for example.
If you have a universal (switching) power supply, the FCC will let you use 230V 50Hz Conducted Emissions data to support a United States Declaration of Conformity (DoC). The European Union (EU) *will not* let you use 120V 60Hz Conducted Emissions data to support an EU DoC. However, I have seen a number of cases where switching power supplies have had *significantly* different Conducted Emissions between 120V 60Hz and 230V 50Hz input power. Therefore I always test them with both supply voltages/frequencies. John Barnes KS4GL, PE, NCE, NCT, ESDC Eng, ESDC Tech, PSE, SM IEEE dBi Corporation http://www.dbicorporation.com/ - ---------------------------------------------------------------- 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://product-compliance.oc.ieee.org/ Graphics (in well-used formats), large files, etc. can be posted to that URL. 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]>
