It may not be always true, but my experience is that Safety compliance can pretty much be achieved by careful implementation of the requirements in and during product design. If all the requirements and recommendations have been followed, you can mostly be certain of the result. This is not generally so with EMC. Based on that assumption, I would say you should test for EMC asap.
But, if you are sending limited field-trial units to customers, then I would say Safety should be ensured first. Neven > > Fellow Compliance Engineers, > > Certainly we would all prefer that our company's products be designed for > initial/immediate compliance, that we have multiple samples available for > testing, and that all the testing is completed without failure. However, in > the real world scenario of one sample for both safety & EMC, that may not > pass all tests, would you recommend that safety certification/testing be > done before or after EMC testing? The key issue being whether a "fix" for > one discipline will require a re-test for the other discipline. > > Personally, I have always recommended that safety be done 1st for two > reasons: > 1) Changes for safety almost always affect EMC testing but EMC changes > seldom affect safety testing and, > 2) Safety re-tests are far less expensive than EMC re-tests. > > Do you agree? Any there any other philosophies on this topic? > > Thanks for your input, > > Bill Bisenius > E.D.& D. > [email protected] <mailto:[email protected]> > > > ------------------------------------------- > This message is from the IEEE EMC Society Product Safety > Technical Committee emc-pstc discussion list. > > Visit our web site at: http://www.ieee-pses.org/ > > To cancel your subscription, send mail to: > [email protected] > with the single line: > unsubscribe emc-pstc > > For help, send mail to the list administrators: > Ron Pickard: [email protected] > Dave Heald: [email protected] > > For policy questions, send mail to: > Richard Nute: [email protected] > Jim Bacher: [email protected] > > All emc-pstc postings are archived and searchable on the web at: > http://www.ieeecommunities.org/emc-pstc This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ieee-pses.org/ To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: [email protected] Dave Heald: [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
