Hi Phil, The concept of rated voltage in standards already includes allowable tolerances and adequate tests. For the supply side, EN 50160 "Voltage characteristics of electricity supplied by public electricity networks" requires in clause 4.2.2 that variations of the rated supply voltage should not exceed ±10 % (with exceptions for remote grid users, e.g. on islands, where +10 % / -15 % are allowable). As Mike already explained, product safety standards require testing with the most unfavourable voltage within the tolerance band of the rated voltage of the equipment (cf. clause B.2.3 in IEC 62368-1:2018). It is the responsibility of the installer and user that the equipment is connected to a supply that matches the voltage rating declared by the manufacturer.
Kind regards, Bernd -----Ursprüngliche Nachricht----- Von: MIKE SHERMAN <msherma...@comcast.net> Gesendet: Samstag, 6. Mai 2023 20:38 An: EMC-PSTC@LISTSERV.IEEE.ORG Betreff: Re: [PSES] Rated Mains Operating Voltage Regional Compatibility [General Use] [EXTERNAL E-MAIL] This email originated from outside of the organization. Do not click links or open attachments unless you recognize the sender. Phil -- It is typical for many standards to run voltage sensitive tests (temperature rise, for example, as I recall) at the labeled voltage PLUS a percentage (6 to 10 %, as I recall). That percentage is intended to cover the utility supply tolerances. So a product labeled 100-240 Vac will often face a test at 264 Vac. Occasionally one might find a product labeled 85-264, but in my opinion that is most likely a mistake, because it would need to be tested at 290 Vac for a standard that requires a 10% overvoltage test, and I am not aware of any supply tolerances that would allow 290 Vac. Word to the wise: Australia's nominal voltage is now 230 Vac, but it has legacy systems that still supply at 240 Vac. So a typical national difference for Australia is to perform your tests AS IF the rated voltage was 240 Vac. This means an extra test or two if you're taking a product rated for 230 Vac for the EU market and want to sell it in Australia. Mike Sherman Sherman PSC LLC > On 05/06/2023 4:09 AM CDT Agar, Philip (Leonardo, UK) > <0000220ac8787b71-dmarc-requ...@listserv.ieee.org> wrote: > > > Please could someone advise me on what standard, if any, might compel a > manufacturer to rate the operating voltage of their equipment to at least > cover the utility supply tolerance of the region in which it is being sold? > For example, a DoC for an IT item sold in the UK claims conformance with the > requirements of LVD Directive 2014/35/EU and EN62368-1:2014+A11:2017 but it > is not clear to me that the specified voltage rating of 100 - 240 Vac > necessarily covers UK utility supply tolerance of up to 253 Vac, or even in > much of the EU at 243.8 Vac. > > Thanks, > Phil Agar > EMC Compliance > > > > > - > ---------------------------------------------------------------- > 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.i/ > eee-pses.org%2Femc-pstc.html&data=05%7C01%7CBernd.Duerrer%40wilo.com%7 > C6fc1aea36817442a38bf08db4e610b1d%7C39288a38ff19432c80111cd9d0dff445%7 > C0%7C0%7C638189950942590575%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMD > AiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata > =%2Fnl0PgPNrCiXvDUgM2UKOC%2FRaWhPMbsIGq8RwH%2BH2BM%3D&reserved=0 > > Website: > http://www.i/ > eee-pses.org%2F&data=05%7C01%7CBernd.Duerrer%40wilo.com%7C6fc1aea36817 > 442a38bf08db4e610b1d%7C39288a38ff19432c80111cd9d0dff445%7C0%7C0%7C6381 > 89950942590575%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2l > uMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=goN8uLT1pm1w > on4xvmcHynH%2BGYQ2rBJk3C2TQPSYAeg%3D&reserved=0 > Instructions: > http://www.i/ > eee-pses.org%2Flist.html&data=05%7C01%7CBernd.Duerrer%40wilo.com%7C6fc > 1aea36817442a38bf08db4e610b1d%7C39288a38ff19432c80111cd9d0dff445%7C0%7 > C0%7C638189950942590575%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLC > JQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=Yh% > 2Furr9UZMwAnw9nD3GPXZNjDpUhTI646EiCLI2dtCw%3D&reserved=0 (including > how to unsubscribe) List rules: > http://www.i/ > eee-pses.org%2Flistrules.html&data=05%7C01%7CBernd.Duerrer%40wilo.com% > 7C6fc1aea36817442a38bf08db4e610b1d%7C39288a38ff19432c80111cd9d0dff445% > 7C0%7C0%7C638189950942590575%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwM > DAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdat > a=dypx5jEnVZQkY4kxpowS0mCmKsQI%2Bcq9Wmz7OoLXJ18%3D&reserved=0 > > 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://list/ > serv.ieee.org%2Fcgi-bin%2Fwa%3FSUBED1%3DEMC-PSTC%26A%3D1&data=05%7C01% > 7CBernd.Duerrer%40wilo.com%7C6fc1aea36817442a38bf08db4e610b1d%7C39288a > 38ff19432c80111cd9d0dff445%7C0%7C0%7C638189950942590575%7CUnknown%7CTW > FpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6 > Mn0%3D%7C3000%7C%7C%7C&sdata=LWQr6baJb2nPkL2j%2BlAra9ijywQud13vbxkHgBO > wmwY%3D&reserved=0 - ---------------------------------------------------------------- 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 ________________________________ WILO SE Wilopark 1, 44263 Dortmund Amtsgericht Dortmund, HRB 21356 http://www.wilo.com/ Vorstand/Executive Board: Oliver Hermes (President & CEO), Dr. Patrick Niehr, Georg Weber, Mathias Weyers Aufsichtsratsvorsitzender/Chairman of the Supervisory Board: Lars Roßner Dieses Dokument ist vertraulich zu behandeln. Die Weitergabe sowie Vervielfaeltigung, Verwertung und Mitteilung seines Inhalts ist nur mit unserer ausdruecklichen Genehmigung gestattet. Alle Rechte vorbehalten, insbesondere fuer den Fall der Schutzrechtsanmeldung. This document has to be treated confidentially. Its contents are not to be passed on, duplicated, exploited or disclosed without our expressed permission. All rights reserved, especially the right to apply for protective rights. Datenschutz ist uns wichtig! Daher gehen wir sorgsam mit Ihren Daten um. Näheres finden Sie in unseren Datenschutzhinweisen<https://wilo.com/de/de/Wilo-Deutschland/Datenschutzhinweise.html>. Sollten Sie keinen Kontakt mehr mit uns wünschen, wenden Sie sich bitte an datensch...@wilo.com<mailto:datensch...@wilo.com>. Data Protection is important to us! Therefore we handle your data carefully. Please find the details in our Note on Data Protection<https://wilo.com/de/de/Note-on-data-protection.html>. If you do not wish to stay in touch with us anymore, please write to data-priv...@wilo.com<mailto:data-priv...@wilo.com>. - ---------------------------------------------------------------- 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