Markus, You have hit the nail on the head. The first edition of the standard is unclear on these aspects, hence each test lab can interpret it differently. The second edition has addressed some of the issues but not all.
The UK EMC Test Labs Association has a Technical Guidance Note on this topic which suggests a more uniform interpretation. Go to http://www.emctla.co.uk/Pages/TechGuideMain.html and select TGN 39. Incidentally, for those unaware of this resource, the EMCTLA TGNs can be a useful source of interpretative advice. Tim Williams -- Elmac Services Wareham, Dorset BH20 6AE, UK Tel 01929 558279 http://www.elmac.co.uk Consultancy & Training in Electromagnetic Compatibility emc wrote: > Hi there > > Which time is required for testing Surge for a equipment with 3AC N > 400V? Industrial enviornment > Silly question but I have seen different approaches > > Test in 500 V steps from 500 to 2000V. an > Test in 500 V steps from 500 to 2000V at 0, 90, 180 and 270 degree, per > step 5 each > Testing just the maximum voltage in an undefined angle to mains, per > step 5 each > Testing below and protection equipment and max > > Times from pulse to pulse betwen 10 sec to 2 minutes > Testing 5 pulses in total > > > > > Best regards > Markus Plangger > - 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
