Hi Bart, Thanks for the reply, but I think I have to disagree. The vertical bracket is the reference plane is it not?, as opposed to the ground plane under the set-up. And I interpret Figure 8e to clearly show the series element on the “ EUT " side of that bracket.
I think we agree, these are mainly used when level setting for the CDN’s, but also used when characterizing the EM Clamp too. I‘m looking at the EN version issue in 2015, I’m sure they are the same. Thanks, Derek. > On Dec 29, 2018, at 2:41 PM, Bart De Geeter <[email protected]> wrote: > > Hi Derek, > > According to me Fig 8e is just a construction sample of a 150 Ohm to 50Ohm > adapter. (An L-shaped metallic bracket). This bracket is put on top of the > reference plane. (But this reference plane is not drawn in this picture). > Typically this adapters are used when performing the 'reference calibrations' > and they are always on top of the reference plane. > > (P.S. I looked to the pictures of the 2013 version of the standard) > > Greetings, > Bart > > -----Oorspronkelijk bericht----- > Van: DEREK WALTON <[email protected]> > Verzonden: zaterdag 29 december 2018 19:59 > Aan: [email protected] > Onderwerp: [PSES] EN61000-4-6 adapters > > Good day folks, > > I’m re-educating myself on EN61000-4-6 and looking at the section discussing > 150 Ohm to 50 Ohm adaptors I am curious why the series 100 Ohm resistor is > added on the “Outside” of the reference plane for the EM Clamp and on the > “Inside” of the reference plane for the CDN. For example, Figure 8e Vs Figure > 9c ( these two figures appear conflicting ) Vs Figures A 9/A 10 > > Can anyone enlighten me as to why this was done please. > > A Happy New Year to all! > > Cheers, > > Derek. > > - > ---------------------------------------------------------------- > 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 > <[email protected]> > > All emc-pstc postings are archived and searchable on the web at: > http://www.ieee-pses.org/emc-pstc.html > > Attachments are not permitted but the IEEE PSES Online Communities site at > http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used > formats), large files, etc. > > 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: > Scott Douglas <[email protected]> > Mike Cantwell <[email protected]> > > For policy questions, send mail to: > Jim Bacher: <[email protected]> > David Heald: <[email protected]> > - ---------------------------------------------------------------- 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 <[email protected]> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. 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: Scott Douglas <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher: <[email protected]> David Heald: <[email protected]>
