Hello Scott I do not understand. If you have a product intended for connection to mains with available power less than 4000VA, V-0 material for fire enclosure is sufficient without any additional testing. Needle flame is verification test and cannot be compared to flammability rating test.
So if you have a certificate that your fire enclosure is V-0 for appropriate thickness, no need for additional evaluation. Best regards Bostjan Poslano iz Outlook za Android<https://aka.ms/AAb9ysg> ________________________________ Od: Richard Nute <ri...@ieee.org> Poslano: torek, 18. april 2023 19:15 Za: EMC-PSTC@LISTSERV.IEEE.ORG <EMC-PSTC@LISTSERV.IEEE.ORG> Zadeva: Re: [PSES] Compliant needle-flame test material vs V-0 material CAUTION: This email originated from outside of our organisation. Do not click links or open attachments unless you recognise the sender and know the content is safe. Hi Scott: The answer to your question: “is it possible the V-0 material does not meet the needle-flame test?” is: Yes. See: https://www.caplinq.com/blog/ul-94v-certification-vs-ul-94-vtm-certification_190/ Best regards, Rich From: Scott Xe <scott...@gmail.com> Sent: Tuesday, April 18, 2023 6:36 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: [PSES] Compliant needle-flame test material vs V-0 material According to EN 62368-1 : 2020 + A11 : 2020 - Cl 6.4.8.4 Smaller distances are allowed provided that the part of the fire enclosure or fire barrier within the required separation distance complies with one of the following: • the fire enclosure or fire barrier meets the needle-flame test according to IEC 60695-11-5. Severities are identified in Clause S.2. After the test, the fire enclosure or fire barrier material shall not have formed any holes that are bigger than allowed in 6.4.8.3.3 or 6.4.8.3.4 as appropriate; or • the fire enclosure is made of V-0 class material; or • the fire barrier is made of V-0 class material or VTM-0 class material. The test house found that the fire enclosure material could not meet the needle-flame test and considered non-compliance. However, the supplier claims that the fire enclosure is made of V-0 material meeting the 2nd requirement. Since the verification methods and conditions of needle-flame test and UL 94 are not identical, is it possible the V-0 material does not meet the needle-flame test? Thanks and regards, Scott - ---------------------------------------------------------------- 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 <emc-p...@ieee.org<mailto:emc-p...@ieee.org>> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Website: http://www.ieee-pses.org/ Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe)<http://www.ieee-pses.org/list.html> List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Mike Cantwell <mcantw...@ieee.org<mailto:mcantw...@ieee.org>> For policy questions, send mail to: Jim Bacher <j.bac...@ieee.org<mailto:j.bac...@ieee.org>> David Heald <dhe...@gmail.com<mailto:dhe...@gmail.com>> ________________________________ To unsubscribe from the EMC-PSTC list, click the following link: https://listserv.ieee.org/cgi-bin/wa?SUBED1=EMC-PSTC&A=1 - ---------------------------------------------------------------- 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 <emc-p...@ieee.org> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Website: http://www.ieee-pses.org/ Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe) List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher: <j.bac...@ieee.org> David Heald: <dhe...@gmail.com> _________________________________________________ To unsubscribe from the EMC-PSTC list, click the following link: https://listserv.ieee.org/cgi-bin/wa?SUBED1=EMC-PSTC&A=1
