Where does the FCC let you use 230/50 AC conducted data? ANSI, incorporated by reference in the Part 15, states something along the lines of testing at USA normal mains voltage and freq.
Attitude is Mind over Matter. If you don't Mind, it doesn't Matter... This email has been displayed using 100% recycled electrons and 100% pure virgin photons. --- On Fri, 5/6/11, John Barnes <[email protected]> wrote: From: John Barnes <[email protected]> Subject: Re: [PSES] Opinion regarding USB and EMC testing To: "Charlie Blackham" <[email protected]> Cc: "'Gartman, Richard'" <[email protected]>, [email protected] Date: Friday, May 6, 2011, 9:42 AM 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]> - ---------------------------------------------------------------- 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]>
