Greetings Muriel, Please see my responses below in [Brackets]..
Have Fun, George -----Original Message----- From: Muriel Bittencourt de Liz [mailto:mur...@grucad.ufsc.br] Sent: Wednesday, February 23, 2000 11:33 AM To: Lista de EMC da IEEE Subject: conducted emissions test setup Hello Group, Reading CISPR 16 and CISPR 22, I had some doubts about the correct setup for doing conducted emissions testing. I'd like to know if someone can put a light on this subject. My questions are: - The "ground plane" is really needed? [Yes]If I don't use one, my results will be wrong? [This is more an issue of repeatability of results]Or without a ground plane I'll be testing for the "worse [Potentially, more like a crap-shoot] conditions"?? - The ground plane can be made of any metal? Or there are specified ones? [I've used a solid copper sheet or screen. Also used galvanized sheet metal or hardware cloth] - The ground plane must be bonded to the GND connector of my mains? (my outlet is three pins: P, N and GND)[Mains ground can be used, but be sure it's a good, low impedance path to true gnd.] - If I understood, the ground plane will be my "reference ground", right? [Ideally, Yes] - My testing equipment (receiver+LISN) must be bonded to this same ground plane? [Ideally, Yes] The ground plane is bonded to the ground connector of my mains? [Yes.. if this is your only "proven" available grounding point]. - I use a PC to collect the test data. Can it be feeded by the same circuit that feeds the EUT+LISN? The ground connector of the PC (the one that's in the three pin plug) should be at the same ground than the ground plane? [Typically, You would want to use a separate feed for the PC. If you have a second LISN use it to feed your PC and or support equipment]. Thanks in advance and Regards! Muriel -- 8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-)8-) Muriel Bittencourt de Liz, M.Sc. - EMC Engineer GRUCAD - Group for Conception & Analysis of Electromagnetic Devices Santa Catarina Federal University - UFSC PO Box: 476 ZIP: 88040-900 - Florianópolis - SC - BRAZIL Phone: +55.48.331.9649 - Fax: +55.48.234.3790 e-mail: mur...@grucad.ufsc.br ICQ#: 9089332 --------- This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
