Hi Dan: As far as question 2 is concerned (line frequency devices & CISPR 22), CISPR 22 does address it.
The Introduction says: "The scope is extended to the whole radio-frequency range from 9 kHz to 400 GHz, . . . ". 50Hz is below the range. It also says in the Scope: "Procedures are given for the measurement of the levels of spurious signals generated by the ITE and limits are specified for the frequency range 9 kHz to 400 GHz for both class A and class B equipment. No measurements need be performed at frequencies where no limits are specified." Hopefully, a passive surge suppressor is not generating spurious high frequency signals during normal operation! By the way, UL standard 1449 covers testing of 'Surge Protective Devices'. Is there a similar product standard from the IEC (not basic test standards)? Pat Lawler EMC Engineer SL Power Electronics Corp. Dan Roman <dan.ro...@dialogic.com> wrote on 02/20/2009 07:23:33 AM: > I’m passing along two questions for a friend that I cannot answer > because they are outside of my product area of expertise. The > product in question is a passive line filter for use with a PC. It > contains overvoltage and line filtering components (some coils, > caps, and MOVs). > > 1. Does the C-Tick mark for non-telecom equipment require both > EMC and safety declarations? I know that for the telecom equipment > my company produces, the ACA requires telecom, safety, and EMC (A- > tick and C-tick) but I don’t know if the safety portion is a telecom > specific requirement or not. If the answer is the C-Tick is for EMC > only, are there other requirements for safety or other marks that > would apply to this product in Australia? I am sure there must be. > > 2. Does a passive device like this fall under EMC > requirements? CISPR 22/EN55022 don’t specify a lower frequency > limit exempting products, so this passive line filter connected to a > 50 Hz supply would appear to need testing. Everything I deal with > has clocks in excess of 1 GHz these days so this question never came > up where I work! > > > > It is always interesting getting questions outside of your normal > day to day experience. > -- > Dan Roman, N.C.E. > Product Regulatory Engineer > Dialogic Research Inc. > 1515 State Rt. 10 > Parsippany, NJ 07054-4538 > *mailto:dan.ro...@dialogic.com > (Voice: +1 973-967-6485 Fax: +1 973-967-6262 > Intranet: http://compliance.eicon.com/ > Internet: http://www.dialogic.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 <emc-p...@ieee.org> All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc 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 <emcp...@ptcnh.net> Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher: <j.bac...@ieee.org> David Heald: <dhe...@gmail.com>
