>From receiving and remounting many items from customers, the pallets we've seen vary from 8-30cm of separation, completely dependent on the shipping weight and how well the product is thought to travel. If the standards were to say: manufacturer's standard pallet or 10cm. I (and my back) would go for that, but there isn't a basis in repeatable science then is there? Kind of like making 30MHz measurements of ISM devices at a 3m distance.
-Doug From: [email protected] [mailto:[email protected]] On Behalf Of [email protected] Sent: Wednesday, April 01, 2009 4:52 AM To: [email protected] Subject: Fw: [PSES] 10cm above GRP requirement for 61000-4-6 I was told by someone long ago that the 10 cm distance came about because this is the height of a standard pallet and in providing this distance from the ground plane allowed you to test floor standing equipment without removing it from the pallet. Bob Heller 3M EMC Laboratory, 76-1-01 St. Paul, MN 55107-1208 Tel: 651- 778-6336 Fax: 651-778-6252 ============================================================= "Gordon,Ian" <Ian.Gordon@edwar dsvacuum.com> To Sent by: <[email protected]> [email protected] <[email protected]> cc 04/01/2009 04:22 Subject AM RE: [PSES] 10cm above GRP requirement for 61000-4-6 Bob et al I agree - or to put it another way "Upon what basis did the relevant IEC committee arrive at this value?" Ian Gordon From: [email protected] [mailto:[email protected]] On Behalf Of [email protected] Sent: 01 April 2009 10:05 To: [email protected] Subject: RE: [PSES] 10cm above GRP requirement for 61000-4-6 A more significant question is: At what point does the tolerance affect the result of the test? The answer to this question will give you the answer to the original question. Bob Heller 3M EMC Laboratory, 76-1-01 St. Paul, MN 55107-1208 Tel: 651- 778-6336 Fax: 651-778-6252 The contents of this email and any attachments are confidential and are provided solely for the use of the intended recipient(s). If you are not the intended recipient, you are hereby notified that any copying, disclosure, distribution, or use of this e-mail, its attachments or any information contained therein is unauthorised and strictly prohibited and you should please contact the sender immediately and delete this e-mail and any attachments from your system. No responsibility is accepted for any virus or defect that might arise from opening this e-mail or attachments, whether or not it has been checked by anti-virus software. - 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.ieeecommunities.org/emc-pstc 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 <[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.ieeecommunities.org/emc-pstc 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 <[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.ieeecommunities.org/emc-pstc 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 <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher: <[email protected]> David Heald: <[email protected]>
