In message <[email protected]>, dated Fri, 23 Jan 2009, Grace Lin <[email protected]> writes:
>The EUT are relay switches and dimmers. Section 7.3 is for Luninaire. >Section 8.2 is for Indoor and Outdoor Luminaires. Section 8.9 is for >lamps. I didn't know what type of product was involved. >I cannot locate B.2. from my copy (CISPR 15 @ IEC:2005). It's the second clause of Annex B. If you haven't got an Annex B, there is something missing from your standard! >Based on these, my colleague insists groundplanes are not required when >perform measurement on relay switches and dimmers. Do you agree >with the argument? Well, 8.1.3 and Figure 5 apply, and I can't see any reference to a ground plane. So your colleague APPEARS to be right. But I suspect that there is a problem with the standard, because the AMN is always used with a ground plane. I happen to know the Secretary of CISPR/F well enough to email him late on a Friday. When/if (he might be travelling on business) I get an answer I will let you know. -- OOO - Own Opinions Only. Try www.jmwa.demon.co.uk and www.isce.org.uk Things can always get better. But that's not the only option. John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK - 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.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 <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher: <[email protected]> David Heald: <[email protected]>
