Amund I am not familiar with that particular standard, but such tests are normally required to be completed within say 1 hour of being removed from the damp heat condition. The point of the test is to confirm that there are no insulating materials that are degraded by virtue of having absorbed moisture during the damp heat condition. Best regards
Neil Barker Manager Central Quality e2v 106 Waterhouse Lane, Chelmsford, Essex, CM1 2QU, England Tel: +44 (0)1245 453616 Mobile: +44 (0)7801 723735 Fax: +44 (0)1245 453571 www.e2v.com <http://www.e2v.com/> P Consider the environment: do you really need to print this e mail? ________________________________ From: [email protected] [mailto:[email protected]] On Behalf Of amund Sent: 14 July 2009 11:10 To: [email protected] Subject: Damp heat test We are going to carry to a damp heat test according to EN54-2 (fire alarm systems). The damp heat test has test levels as +40C / 95%Rh and the duration is 21 days with the equipment POWERED OFF during the test. Question: After 21 days, a functional test shall be carried out. Shall this test be carried out at the end of the test med damp heat condition or shall the equipment first be brougth back to normal conditioning and the functional tested. Please EN54-2 experts, looking forward to some comments on this issue. Best regards Amund Westin Oslo, Norway ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email ______________________________________________________________________ - 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]> Sent by a member of the e2v group of companies. The parent company, e2v technologies plc, is registered in England and Wales. Company number; 04439718. Registered address; 106 Waterhouse Lane, Chelmsford, Essex, CM1 2QU, UK. This email and any attachments are confidential and meant solely for the use of the intended recipient. If you are not the intended recipient and have received this email in error, please notify us immediately by replying to the sender and then deleting this copy and the reply from your system without further disclosing, copying, distributing or using the e-mail or any attachment. Thank you for your cooperation. ______________________________________________________ ________________ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email ______________________________________________________________________ - 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]>
