hehehe....
oh man, and it isnt even April 1st. At 12:48 14/07/2003 -0600, brent.dew...@us.datex-ohmeda.com wrote: >I don't think I'd go back to that test house! What the technician did was >both wrong and potentially dangerous. The closest test method to this that >I know of was under the old VDE 0871 regulation in which a 50 ohm-50 >microhenry network was inserted into the protective earth to "lift" the >lead at conducted emissions frequencies. > >Regards, > >Brent DeWitt > > > > > > "Boris > Yost" > > <yost@rainbowdisplays.c To: > "Emc-Pstc@Majordomo. Ieee. Org" <emc-p...@majordomo.ieee.org> > om> cc: > > Sent by: Subject: Conducted > emissions--green wire? > owner-emc-pstc@majordom > > o.ieee.org > > > > > > 14-07-03 11:02 > AM > > Please respond > to > > "Boris > Yost" > > > > > > > > > > >Dear Listers: > > I recently watched a conducted emissions test. Said test technician >connected Line to a LISN, Neutral to a LISN, and ground got stuck in a >piece >of foam to keep it from touching anything. This bothered me and I >questioned this. However, according to said test technician, that is what >they are supposed to do. > The LISN's and the EUT were put on a metal table surface. The LISN's >were >well strapped down, but my thing was just sitting there. Doesn't this mean >that the impedance of the EUT is some random number depending on the >materials and surface finishes of the table, EUT, and where they put the >LISN's? The stand I used for the EUT isn't really part of the EUT, just >something I had to hold it up. What happens when somebody else mounts a >display on a furniture lift and puts it in a piece of wooden furniture? > >Boris > > >------------------------------------------- >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 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
