On Tue, 16 May 2006 10:27:30 +0300, <ari.honk...@nokia.com> wrote: > If you follow the latest IEC 61000-4-4 it is only common mode test, that > is L1,L2,PE.
It is quite clear in IEC 61000-4-4:2004, as the clause 7.3.1.1 of the standard now says: The test voltage shall be applied ***simultaneously*** between a ground reference plane and all of the power supply terminals ... and the corresponding figures also indicate that the disturbance are to be injected to all lines at once. However, IEC 61000-4-4:1995 clause 7.3.1 simply says: The test voltage shall be applied between a ground reference plane and each of the power supply terminals ... and the corresponding figures suggest that the disturbance are to be injected to each of the lines one by one. Regards, Tom Tomonori Sato <vef00...@nifty.ne.jp> URL: http://homepage3.nifty.com/tsato/ - 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 emc-p...@ieee.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 emcp...@ptcnh.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald: emc-p...@daveheald.com All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc