> Ron, you might try searching/contacting manufacturers/user groups of > heart pacers, defibrillators, and synchronizers. Although "normal" > employees do not have these devices, I think you will at least learn > about the frequencies of concern as well as the levels. > > Bob Heller > 3M EMC Laboratory, 76-1-01 > St. Paul, MN 55107-1208 > Tel: 651- 778-6336 > Fax: 651-778-6252 > ================================================================================== > > From: > > Ron Pickard <[email protected]> > > To: > > "[email protected]" <[email protected]> > > Date: > > 08/10/2010 08:22 PM > > Subject: > > RI query > > Sent by: > > <[email protected]> > > To all, > > I need some help in determining if there are any actual quantifiable > hazards being presented to humans when exposed to the radiated field > of the radiated immunity test such as IEC/EN 61000-4-3 or IEC/EN > 61000-6-1 inside of a closed shielded or anechoic chamber. I’m > asking anyone in the group with experience performing this test if > they know the answer(s). > > Most test labs that I am aware of perform this test mandating that > no one be in the chamber during testing. Is it simply normal > practice to keep people out of the chamber during this test and not > wanting anything in the chamber that might impact the field > uniformity, or are there actual potential hazards associated with > this testing? I have searched extensively for any documented > requirements, restrictions, etc. from various agencies that I > believe would be concerned with that, but to no avail. > > A concern has been floating around here for some time about the > hazards to a human being that would be in close proximity to the > generated EMI of a radiated immunity test. With some products, > manual operation manipulation is needed to exercise portions of the > product during this testing, which is where this question > originates. The concern here relates to the proliferation of cases > associated with close proximity to humans and any legal/ > perspectives due confining a human in fully shielded and/or anechoic > chamber during this test. > > To that end and in the USA, does OSHA impose any restrictions with > this particular type of testing? Are there any maximum permissible > exposure limits for this testing environment? If so, at what field > intensity(ies) will precautions need to be taken? > > If you know of any references to any regulations, requirements and/ > or restrictions, please be kind enough to provide them, web links > would be especially nice. All I need are references and if I need > to, I will purchase them. Whatever could be provided would be > greatly appreciated. > > I look forward to your reply. > > Best regards, > > Ron Pickard > > - > ---------------------------------------------------------------- > 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]>
