Derek The EMC Directive requires the manufacturer to perform an "an adequate analysis and assessment of the risk(s)." (Annex II, module A, para 3)
That risk assessment has to consider foreseeable use. It's for the manufacturer to decide, but if I was advising them, then I would suggest that maybe testing 3 combinations would cover it: - minimum number of supported lights - maximum number - approx. 50% load So, in this example, 1, 8 and 4 or 5. Ultimately though, It's the manufacturer's responsibility to make the call. Best regards Charlie Charlie Blackham Sulis Consultants Ltd Tel: +44 (0)7946 624317 Web: https://sulisconsultants.com/ Registered in England and Wales, number 05466247 -----Original Message----- From: Lfresearch <[email protected]> Sent: 17 February 2023 20:21 To: [email protected] Subject: [PSES] Adding more than one EUT Hi folks, I’ve been asked to test a light fixture that has the ability to be daisy chained up to 8 units. When I run conducted emissions, I’m wondering if I need to insist on having 8 units plugged in at once i.e. fully populated, OR, can I just test one fixture at a time since that’s how the system is likely to be used also.. Is there a legal requirement or precedent on how this should be tested as I’m going round in circles arguing with myself here. Thanks, Derek. SSCLabs, Reno, NV. - ---------------------------------------------------------------- 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.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 <[email protected]> For policy questions, send mail to: Jim Bacher: <[email protected]> David Heald: <[email protected]> _________________________________________________ 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 <[email protected]> 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 <[email protected]> For policy questions, send mail to: Jim Bacher: <[email protected]> David Heald: <[email protected]> _________________________________________________ To unsubscribe from the EMC-PSTC list, click the following link: https://listserv.ieee.org/cgi-bin/wa?SUBED1=EMC-PSTC&A=1
