George, the standard fails to describe the allowed sizes of openings in the top and sides of a fire enclosure. As far as the standard is concerned, fire must only go down since only bottom openings are described. The side and top openings that are described are for electical enclosures and do not have anything to do with containing a fire. It is possible to comply fully with the requirements of an electrical enclosure and have very large openings in the top and sides of the product. I understand that these requirements are not included in the standard because there is little research in this area. Nevertheless, a couple of persons in this group have performed some tests with wire mesh screens to determine which size openings would contain a flame, and several persons pointed to the NEBs fire containment requirements. Anything you could contribute to this area would be appreciated by the community.
Richard Woods Sensormatic Electronics Tyco International -----Original Message----- From: geor...@lexmark.com [mailto:geor...@lexmark.com] Sent: Friday, April 05, 2002 3:43 PM To: emc-p...@ieee.org Subject: Product Safety "Bible" Group; I would appreciate your input on a project that I have wanted to do since I became involved in product safety. All of us at one time or another have wished there was a good book available on product safety, particularly for ITE. I call it a product safety "bible". At the end of June I will end a forty year career (almost 1/4 of it in product safety) by my retirement. Although I may decide to do some consulting, it is my hope that this will allow me the time to try and create such a book. This has nothing to do with fame or fortune, as neither is likely to come from such a book. Hardy Krueger's (IBM Germany) 1992 book was a great help to me in 1993 to merely learn the many acronyms and terms associated with the field of product safety design and certifications. However, over the next nine years I found that while his book is an excllent "starter", there is far more information that our pofessional field needs that is not well recorded in a single document. My experience is exclusively with ITE products and their global certifications. You can help me in this effort by suggesting content topics that go beyond the details of IEC 60950. What aspects of ITE requirements, design, testing, certification, field incidents, etc. need to be better documented? Your comments and suggestions will be invaluable if this project can be pulled off before I die or lose interest! Please send any input directly to me off-line at geor...@lexmark.com There is no need to clutter up the listserver on this topic. Regards, George Alspaugh ------------------------------------------- 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 All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ Click on "browse" and then "emc-pstc mailing list" ------------------------------------------- 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 All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ Click on "browse" and then "emc-pstc mailing list"
