I don't know what to say. I too have a desire to meet the people we have corresponded with over the many. Recent economical restraints have limited or prohibited participation in the Expos, but I'm hopeful that soon things will turn around. Until then I will have to rely on this email group for information, continued education, and entertainment. :o)
The Other Brian -----Original Message----- From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of Brian Oconnell Sent: Thursday, October 13, 2011 1:56 PM To: 'EMC-PSTC' Subject: RE: Table Size in Emissions test - Why? Being a sneaky, underhanded, despicable person; I have two installs - a config that will match the pretty pics in the standards, and a config that will make the measurements. The customer's auditor goes away happy after he visits my site, but my reports clearly specify the test setup 'variation' in text and pics. And customer's compliance engineers are happy. As for Mr Kunde, you seem to have a cult following. I was asked by no less than three people at the PSES symposium if I was 'The Other Brian'. You should know that there are people out there that want to meet you. Was most aghast that I would be associated with a reasonable and normal persona. Brian -----Original Message----- From: emc-p...@ieee.org [mailto:emc-p...@ieee.org]On Behalf Of Kunde, Brian Sent: Thursday, October 13, 2011 10:29 AM To: EMC-PSTC Subject: RE: Table Size in Emissions test - Why? Sorry to jump in on this so late but I've been on vacation. What is the reason for the table size called out in ANSI and why 1.5m x 1m? Is there some science behind it? Is it explained anywhere? Just curious. Below 1Ghz isn't the table suppose to be invisible to RF anyway? We test to CISPR11 which only calls out the height of the table (0.8m). The other dimensions are not listed and I never questioned it because I always assumed they were not important. I see someone posted that only the height was important and the other dimensions are "Nominal", but out 'big' test table is 0.8m deep by 3m long. Can hardly be considered nominal. Why I'm so curious is we are looking to purchase or build some new test tables and I want to get the dimensions correct. They must be able to handle instruments of 600 lbs, have wheels, and can fit through a standard 48" doorway (3' 9" available). A 1m deep table is a tight fit with cables, hoses, etc.. Are there any companies who sell test tables or do you still have to make them? The Other Brian -----Original Message----- From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of WNya Sent: Monday, October 10, 2011 7:54 PM To: EMC-PSTC Subject: Table Size in Emissions test Dear Experts, Recently my company went through the first ISO17025 audit. We have a table smaller than the standard requirement of 1.5m x 1m since our products are small, typically 10cm x 10cm x 10cm. The height of our table was 0.8m. The auditor wanted us to change the table size to follow the standard. What does it matter since we never use the extra space on the table? I do agree we must keep to the height requirement since the floor is a ground plane and thus it sets a fixed capacitance to the EUT and also controls the lengths of any attached cables. Can we reject or challenge the auditor's request? Has anyone experience the same situation? - ---------------------------------------------------------------- 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 <emc-p...@ieee.org> All emc-pstc postings are archived and searchable on the web at: http://product-compliance.oc.ieee.org/ Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <emcp...@radiusnorth.net> Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher: <j.bac...@ieee.org> David Heald: <dhe...@gmail.com> ________________________________ LECO Corporation Notice: This communication may contain confidential information intended for the named recipient(s) only. If you received this by mistake, please destroy it and notify us of the error. Thank you. - ---------------------------------------------------------------- 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 <emc-p...@ieee.org> All emc-pstc postings are archived and searchable on the web at: http://product-compliance.oc.ieee.org/ Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <emcp...@radiusnorth.net> Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher: <j.bac...@ieee.org> David Heald: <dhe...@gmail.com>
