Hi All, Perhaps someone can give some more background on why this was adopted. I am sure there is value in it somewhere, but it escapes me. Most countries will accept an EMC test report from an accredited 3rd party test lab, and some don't even require that. As a manufacturer, we only required of the supplier copies of a test report from an accredited competent test lab.
One possible reason for the lack of use may be costs, and until it is enforced by governments, it is an uneccessary expense. If the safety CB Scheme is anything to judge by, the minute you mention the CB Scheme your costs quadruple, and EMC testing is expensive enough. An interesting exception is that under the CB Scheme rules, for 60601-1 (medical equipment) the EMC testing has to be carried out by a CBTL, because EMC is part of the safety testing. I have had a case where an un-named NCB has refused to accept an emc test report from a NVLAP accredited test lab, because the test lab is not a CBTL. What is more disturbing is that the NCB has been very reluctant (read refused) to accredit the lab as a CBTL, because it is "cutting into their (NCB) business". Conspiracy theory anyone? My $0.02 Doug --- Richard Hughes <[email protected]> wrote: Hi folks, A year or so back the IEC decided to extend the IECEE CB Scheme tocover EMC as well as safety. The list of EMC standards which can beused in conjunction with this scheme is given athttp://www.iecee.org/CBSCHEME/Standard/emc.htm - it is quite a list! The IECEE have more recently decided to to publish some informationregarding the category of products where CB Certificates have beeissued on their web site (seehttp://certificates.iecee.org/cbtes cert/cbtestcert.nsf/476c88daa9b602fbc12570990038ef4b/). Looking at the above site shows that while some certificates have beenissued in respect to CISPR 14 (which covers domestic appliances), nonehave been issued in that period to CISPR 22. I am interested in knowing why the scheme is (or seems to be) so littleused for EMC. Of course, I can understand that in many parts of the world EMCcompliance is a first party (supplier's declaration) activity whereassafety requires a third party certificate - so this mitigates againstcompanies paying for something they do not see a market demand for. However, many manufactures of finished goods often contractuallyrequire their sub-assembly and component suppliers to have those itemsCB 'approved' because it eases the burden on them, both in terms ofinitial compliance and on-going follow-up. Why then does the schemeseem so under used? Thanks for your consideration and replies. Richard Hughes p.s. And in case you were wondering, no I do not work for a test houseand I'm not trying to drum up business! -----------------------------------------------------------------This message is from the IEEE Product Safety Engineering Societyemc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to [email protected] 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] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to [email protected] 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] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
