RE: surge Z?
It is always a good idea to have a copy of the standard. If it is DC/DC converter, you might find some of the footnotes in the generic immunity standards such as EN 61000-6-2 useful. Example [paraphrased]: Apparatus with a d.c. power input port intended for use with an ac-dc power adaptor shall be tested on the ac power input of the power adaptor specified by the manufacturer, or where none is so specified, using a typical ac-dc power adaptor. The surge test is not applicable to dc power input ports intended to be permanently connected to cables less than 10m There are other notes addressing testing of signal lines. Regards - Chris Chileshe (own views etc etc) From: drcuthbert [SMTP:drcuthb...@micron.com] Sent: Thursday, March 20, 2003 5:15 PM To: 'jrbar...@iglou.com'; drcuthbert; emc-p...@majordomo.ieee.org Subject:RE: surge Z? Thanks to everyone for the numbers. To clarify, the device is a DC/DC converter. We will be applying the surge to the DC input and to the DC output. I have ordered EN 61000-4-5 to get the details. Dave From: John Barnes [mailto:jrbar...@iglou.com] Sent: Thursday, March 20, 2003 9:45 AM To: drcuthbert; emc-p...@majordomo.ieee.org Subject: Re: surge Z? Dave, Section 6.1 of EN 61000-4-5:1995 says the generator has an effective output impedance of 2 ohms. John Barnes KS4GL, PE, NCE, ESDC Eng., SM IEEE dBi Corporation http://www.dbicorporation.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: davehe...@attbi.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 e-mail has been scanned for all viruses by Star Internet. The service is powered by MessageLabs. For more information on a proactive anti-virus service working around the clock, around the globe, visit: http://www.star.net.uk This e-mail has been scanned for all viruses by Star Internet. The service is powered by MessageLabs. For more information on a proactive anti-virus service working around the clock, around the globe, visit: http://www.star.net.uk 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: davehe...@attbi.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
RE: surge Z?
Thanks to everyone for the numbers. To clarify, the device is a DC/DC converter. We will be applying the surge to the DC input and to the DC output. I have ordered EN 61000-4-5 to get the details. Dave From: John Barnes [mailto:jrbar...@iglou.com] Sent: Thursday, March 20, 2003 9:45 AM To: drcuthbert; emc-p...@majordomo.ieee.org Subject: Re: surge Z? Dave, Section 6.1 of EN 61000-4-5:1995 says the generator has an effective output impedance of 2 ohms. John Barnes KS4GL, PE, NCE, ESDC Eng., SM IEEE dBi Corporation http://www.dbicorporation.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: davehe...@attbi.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
Re: surge Z?
Dave, Section 6.1 of EN 61000-4-5:1995 says the generator has an effective output impedance of 2 ohms. John Barnes KS4GL, PE, NCE, ESDC Eng., SM IEEE dBi Corporation http://www.dbicorporation.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: davehe...@attbi.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
RE: surge Z?
The surge generator specification is 2 ohms source impedance for testing in normal mode (line to line) and 12 ohms for testing in common mode (surges line to ground). Mike Hopkins Thermo Electron KeyTek From: drcuthbert [mailto:drcuthb...@micron.com] Sent: Wednesday, March 19, 2003 3:36 PM To: emc-p...@majordomo.ieee.org Subject: surge Z? Anyone know the source impedance used for EN 61000-4-5 Surge testing? Dave Cuthbert Micron Technology 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: davehe...@attbi.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: davehe...@attbi.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
RE: surge Z?
From 2 to 42 (40 + 2). John Radomski Schneider Electric Several. From 2 to 40 ohms, Regards, Ari Honkala -Original Message- From: ext drcuthbert [mailto:drcuthb...@micron.com] Sent: Wednesday, March 19, 2003 10:36 PM To: emc-p...@majordomo.ieee.org Subject: surge Z? Anyone know the source impedance used for EN 61000-4-5 Surge testing? Dave Cuthbert Micron Technology 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: davehe...@attbi.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
RE: surge Z?
Several. From 2 to 40 ohms, Regards, Ari Honkala -Original Message- From: ext drcuthbert [mailto:drcuthb...@micron.com] Sent: Wednesday, March 19, 2003 10:36 PM To: emc-p...@majordomo.ieee.org Subject: surge Z? Anyone know the source impedance used for EN 61000-4-5 Surge testing? Dave Cuthbert Micron Technology --- 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: davehe...@attbi.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: davehe...@attbi.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
