Hi Amund:
First and foremost, both the IEC and UL make money selling standards. Second, UL does not adopt any IEC standard, or most other non-UL standards. UL will test to an IEC standard, and may issue a CB test report, but not the right to use their certification mark. UL will only issue the right to use their certification mark if the product meets the UL standard. UL writes their own standards. If industry insists, UL will start with an IEC standard and re-write it to meet their requirements (often justified as meeting USA National Electrical Code requirements). To be fair, Americans often add more requirements, too (which are gladly accepted by UL as such additional requirements mean additional testing and additional income). UL is an ANSI-approved standards-writing organization. As such, virtually all UL standards are also ANSI standards. All other certification houses must use UL/ANSI standards for their certification. Best regards, and stay safe! Rich From: Amund Westin <am...@westin-emission.no> Sent: Thursday, January 21, 2021 2:40 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: [PSES] UL = IEC ?? When IEC publish a standard, do UL adopt it as is, or do they modify it? I guess this will vary form case to case. Right? Best regards Amund - ---------------------------------------------------------------- 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 Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. 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: Scott Douglas <sdoug...@ieee.org> Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher: <j.bac...@ieee.org> David Heald: <dhe...@gmail.com>
