Kevin: I understand the position you are in, several years ago when I was working for Mitel Corporation, a customer asked us to test to an ESD specification that they had written, it was unique for their location in the world. To have to design a product to comply with such requirements when 99.9 percent of your customers are satisfied with the test specifications seems un-warranted.
Many companies test to comply with international standards, others have their own test specification that exceeds most if not all specs. If you are testing beyond these standards yourself then this should be a reasonable argument. Test levels beyond 15-20KV should be sufficient. The human model various slightly I believe depending on what manufacturer of ESD simulator you have. Take a look at the Regulatory Approval for Technology web site http://www.raft-global.org Look for a presentation given on ESD June 2002 it will provide you with some useful information. Regards Kevin Keegan > > From: Kevin Harris <kevinharr...@dsc.com> > Date: 2003/06/02 Mon AM 10:47:47 EST > To: "EMC-PSTC (E-mail)" <emc-p...@ieee.org> > Subject: ESD Levels and recent research > > > Dear Group, > > We have a client who demands levels of ESD protection well beyond what any > of our product norms call for and to test using their own (unique) test > methods. Their standards were clearly written more than a decade ago > (probably two) and I would like to gently show them that perhaps it could be > updated. As part of this I would like to point to recent research showing > the what the current thoughts are on what sort of worst case levels one > could normally expect for human body model and furniture type discharges > and perhaps in what proportion one could expect worst case discharges as > compared to the "average" event. Has anybody written or read something well > researched on this topic recently. > > > Kind Regards, > > > Kevin Harris > Manager, Approvals and CAD Services > Digital Security Controls > 3301 Langstaff Road > Concord, Ontario > CANADA > L4K 4L2 > > Tel: +1 905 760 3000 Ext. 2378 > Fax +1 905 760 3020 > > Email: kevinharr...@dsc.com > > > ------------------------------------------- > This message is from the IEEE EMC Society Product Safety > Technical Committee emc-pstc discussion list. > > Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ > > To cancel your subscription, send mail to: > majord...@ieee.org > with the single line: > unsubscribe emc-pstc > > For help, send mail to the list administrators: > Ron Pickard: emc-p...@hypercom.com > Dave Heald: emc_p...@symbol.com > > For policy questions, send mail to: > Richard Nute: ri...@ieee.org > Jim Bacher: j.bac...@ieee.org > > Archive is being moved, we will announce when it is back on-line. > 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.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
