In message <9d04b979323dcd428297dda95108893e0120c...@bb-corp-ex2.corp.cubic.cub>, dated Tue, 27 Jan 2009, "Price, Edward" <[email protected]> writes:
>So I would have to deduce then that ANSI C63.4 is schizophrenic, in >that it doesn't trust the specified LISNs to work as they say they >should. If the standard wants you to measure the LISN plus your >facility filter, then you are characterizing your facility, not just >the LISN. I don't know that C63.4 actually requires that. In CISR16, it's only filters built in to the LISN that are included in the calibration. You can run a Z/F curve with the mains port open-circuit and then another with it short-circuit. If both are within tolerance, the filter is OK. But you DO have to check, because one or more of the filter capacitors might have failed. -- 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]>
