Craig,
You made a good catch, and you are correct. Having run a polymeric-enclosed equipment through North American listing, you might find that if you have a non-brittle, think, and strong polymeric enclosure, it might not have any effect in going down to -50 °C and being impacted. Also, having tested a lot of gasket materials to Annex D.2 lately, the -30 C temperature does not affect any of the gasket materials that I have tested, and the hammer just bounces off the gaskets. So, you will probably find that the gaskets might also have a good probability of success if tested down to -50 °C. Regards, Don Gies Don Gies, N.C.E Senior Product Compliance Engineer Alcatel-Lucent Murray Hill, NJ 07974-0636 USA ________________________________ From: Petrie, Craig D [mailto:[email protected]] Sent: Thursday, October 08, 2009 11:21 AM To: [email protected] Subject: 60950-22 Outdoor ITE question Good afternoon, Note 3 of Cl. 4.1 of 60950-22 states "In Finland, Norway and Sweden, the temperature in winter may be extremely low. For OUTDOOR EQUIPMENT this will demand special design so that the equipment can stand transport, erection and operation/service at temperatures down to -50 deg C." How would you interpret this Note: A) This clause is not applicable as we specify the product is only suitable for use in ambient air temperature range of -35 deg C to +50 deg C; B) In order to comply with these countries requirements, the Mechanical Impact test (Cl. 10.2) and the Gasket Compression test (Annex D.3) must be carried out at -50 deg C instead of -35 deg C? Thanks and regards, Craig - 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]>
