I won't argue with that. I'm still glad that I asked for clarification. Very informative.
> -----Original Message----- > From: Mike Hopkins [SMTP:michael.hopk...@thermo.com] > Sent: Tuesday, June 24, 2003 12:18 PM > To: Chris Maxwell; Mike Hopkins; don_borow...@selinc.com; emc-p...@majordomo.ieee.org > Subject: RE: ESD - not applicable ? > > I understand the concerns and your reasoning, but if you define accessible > as "anything I CAN touch", then it would inlcude all surfaces, connectors > and the like... > > There was considerable discussion in the Working Group regarding this issue, > and as I recall, the concensus was that for compliance purposes, there can > be "accessible" points and ports that are unlikely to be accessed by the > operator during the normal use. These points, surfaces and ports can then be > exempted from ESD testing. > > It's my feeling that the intent of the standard is to insure that the > product is immune to human ESD events that are likely to occur during normal > use -- in other words, test those points and ports the operator is likely to > come in contact with during normal use; don't bother with those points NOT > likely to be touched by the operator during normal use.... > > This is only for compliance purposes.... Maybe not good engineering > practice, but that's where the second head comes in -- you'll probably have > a more rugged and reliable product if you do test everything, but that's up > to the manufacturer, not the compliance body. > > > Best Regards, > > Michael Hopkins > Manager, EMC Technologies > Thermo Electron > Control Technology Division > EMC & ESD Simulation Solutions > One Lowell Research Center > Lowell, MA 01852 > Tel: +1 978 275 0800 ext. 334 > Fax: +1 978 275 0850 > michael.hopk...@thermo.com > > One Thermo, committed to integrity, intensity, innovation & involvement > > > 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
