Hi Rich - Annex T of EN60950 refers to EN60529. Dust ingress is not considered. EN60950 clause 1.1.2 refers to Annex T.
One thing to note - if you're designing for global use, UL60950 does not accept EN60529 testing - it must be UL50 tested. Which is, IMHO, overkill in many cases since UL50 is for electrical (mains connected) enclosures used outdoors. It does not apply to portable devices, yet UL will apply UL50 and not accept EN60529 test data, because that's the way the standard is written. What UL WILL DO is test to UL50, and use that test data to give you the EN60529 rating. However, even that is done unfairly - for example, in UL's (unpublished, I think)table that cross-references UL50 to EN60529, you must have a 4X rating to equate to an IPx6 rating - however, the 4X rating applies twice the volume and pressure of water. So much for harmonization. Doug Massey LXE, Inc. -----Original Message----- From: richwo...@tycoint.com [mailto:richwo...@tycoint.com] Sent: Wednesday, March 20, 2002 3:00 PM To: emc-p...@majordomo.ieee.org Subject: IP Rating and EN60950 I would like someone to explain to me why EN60950 does not normative reference EN60529. While the latter is referenced in the OJ, the scope of the standard seems to indicate that it is a basic standard to be referenced in product standards. The scope says, "It will remain the reponsibility of the individual Technical Committes to decide on the extent and manner in which the classification is used in their standards and to define 'enclosure' as it applies to their equipment. Richard Woods Sensormatic Electronics Tyco International ------------------------------------------- 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...@mediaone.net 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...@mediaone.net 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"
