Don't forget the seminal research done by WMKing on this topic. He was I believe the first to measure the fast response of an ESD event through a metal intervening object. Also, it is understood that the ESD test was a consensus output in an attempt to provide repeatability within test houses. King and Hish also produced an ESD generator that accurately replicated the research.
The current ESD test is a committee consensus output which tried very hard to produce a test that could be consistent and repeatable, while at the same time be as close as possible to the actual event. On Mon, Mar 6, 2023, 1:42 AM John Woodgate <j...@woodjohn.uk> wrote: > * This message originated outside of DISH and was sent by: j...@woodjohn.uk > <j...@woodjohn.uk> * > ------------------------------ > > Yes, 61000-4-2- is not very good, but while you are reluctant to share > your knowledge with the committee, it is unlikely that anything will happen. > > ====================================================================================== > Best wishes John Woodgate OOO-Own Opinions Only > www.woodjohn.uk > <http://www.woodjohn.uk> > Rayleigh, Essex UK > > I hear, and I forget. I see, and I remember. I do, and I understand. Xunzi > (340 - 245 BC) > > > On 2023-03-06 04:14, doug emcesd.com wrote: > > Hi All, > > I have a few thoughts I would like to share with you on ESD that have > comes out of my private research into the field in recent years. > > 1. A 2kV air discharge can be much more likely to cause equipment > malfunction than any other discharge of any voltage. > 2. There is no natural ESD event comparable to a 15-20+ kV contact > discharge so why test for it? That is designing for something that is > extremely unlikely at best. > 3. The IEC61000-4-2 does not very well model real ESD events at all. > One example, my hand metal discharge at 4 kV results a current spike at the > start of the discharge that is more than twice as high as the standard > specifies! This is very repeatable. > > > The above is just a sample of the research I have generated over the > years. Seems like IEC 61000-4-2 needs an urgent overhaul as I believe > engineers get a false sense of security that passing the test means > reliable field performance, not even close! > > > > > Doug Smith > Sent from my iPhone > IPhone: 408-858-4528 > Office: 702-570-6108 > Email: d...@dsmith.org > Website: http://dsmith.org > <http://dsmith.org> > - > ---------------------------------------------------------------- > > 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 < > emc-p...@ieee.org> > > All emc-pstc postings are archived and searchable on the web at: > http://www.ieee-pses.org/emc-pstc.html > <http://www.ieee-pses.org/emc-pstc.html> > > Website: http://www.ieee-pses.org/ > <http://www.ieee-pses.org/> > Instructions: http://www.ieee-pses.org/list.html (including how to > unsubscribe) > <http://www.ieee-pses.org/list.html> > List rules: http://www.ieee-pses.org/listrules.html > <http://www.ieee-pses.org/listrules.html> > > For help, send mail to the list administrators: > Mike Cantwell <mcantw...@ieee.org> > > For policy questions, send mail to: > Jim Bacher <j.bac...@ieee.org> > David Heald <dhe...@gmail.com> > ------------------------------ > > To unsubscribe from the EMC-PSTC list, click the following link: > https://listserv.ieee.org/cgi-bin/wa?SUBED1=EMC-PSTC&A=1 > <https://listserv.ieee.org/cgi-bin/wa?SUBED1=EMC-PSTC&A=1> > > - > ---------------------------------------------------------------- > > 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 < > emc-p...@ieee.org> > > All emc-pstc postings are archived and searchable on the web at: > http://www.ieee-pses.org/emc-pstc.html > <http://www.ieee-pses.org/emc-pstc.html> > > Website: http://www.ieee-pses.org/ > <http://www.ieee-pses.org/> > Instructions: http://www.ieee-pses.org/list.html (including how to > unsubscribe) > <http://www.ieee-pses.org/list.html> > List rules: http://www.ieee-pses.org/listrules.html > <http://www.ieee-pses.org/listrules.html> > > For help, send mail to the list administrators: > Mike Cantwell <mcantw...@ieee.org> > > For policy questions, send mail to: > Jim Bacher <j.bac...@ieee.org> > David Heald <dhe...@gmail.com> > ------------------------------ > > To unsubscribe from the EMC-PSTC list, click the following link: > https://listserv.ieee.org/cgi-bin/wa?SUBED1=EMC-PSTC&A=1 > <https://listserv.ieee.org/cgi-bin/wa?SUBED1=EMC-PSTC&A=1> > - ---------------------------------------------------------------- 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 <emc-p...@ieee.org> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Website: http://www.ieee-pses.org/ Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe) List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher: <j.bac...@ieee.org> David Heald: <dhe...@gmail.com> _________________________________________________ To unsubscribe from the EMC-PSTC list, click the following link: https://listserv.ieee.org/cgi-bin/wa?SUBED1=EMC-PSTC&A=1
