Hi Brian,
Just for your information, in Europe residential EV chargers (for charging an EV with AC voltage), typically needs to fulfill the requirements of EN 61851-21-2 (product standard for off-board EV chargers). In this standard you will find the applicable test levels for immunity testing. One of the tests that needs to be performed is the radiated immunity test according EN 61000-4-3. (This is the basic standard which specifies how a radiated immunity test should be performed, in this test standard you find typical test levels, however in this case the product standard is where you should look to find the applicable test level. If the charger will be located solely in a residential environment, a fieldstrength of 3V/m is applicable. For locations other than residential 10V/m is required. (modulation used: 80% AM 1kHz in both cases). Typically testing is performed in two operational modes: 1) the charger is in charging mode 2) the charger is in waiting mode. 20V/m is more than needed (which is of course allowed, but not typically done by manufacturers) FCC (for the US region) does not require immunity testing to be performed. So in FCC part 15B, you'll only find emission limits. So, not related to your question. I hope it helps. Greetings, Bart From: Brian Gregory <[email protected]> Sent: vrijdag 21 juli 2023 18:44 To: [email protected] Subject: [PSES] Immunity test field strength, residential setting Hello colleagues, We are building EV Chargers for residential markets (not just US) and one of the safety applicable standards is UL 2231-2. It calls out IEC 61000-4-3 for immunity testing parameters, which states a requirement for a field strength of 20V/m. Our EMC expert says typically testing is "done at 3 Vrms, which is standard for most products in residential environments." He can only test up to 10V, and we're hearing the same from an overseas lab to whom our manufacturer refers. Does FCC Part B have guidelines for field strength we can cite? Can some offer this "DC guy" (aka, 60 Hz) a quick definition of what the 20V/m represents? I'm guessing 20 V/m is for higher density commercial applications, aka charging stations, so we probably need an exception for residential. Thank you! Colorado Brian 720-450-4933 _____ 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 All emc-pstc postings are archived and searchable on the web at: https://www.mail-archive.com/[email protected]/ <https://www.mail-archive.com/[email protected]/%20> Website: https://ewh.ieee.org/soc/pses/ <https://ewh.ieee.org/soc/pses/> Instructions: https://ewh.ieee.org/soc/pses/list.html (including how to unsubscribe) <https://ewh.ieee.org/soc/pses/list.html> List rules: https://ewh.ieee.org/soc/pses/listrules.html For help, send mail to the list administrators: Mike Sherman at: [email protected] Rick Linford at: [email protected] <mailto:[email protected]> For policy questions, send mail to: Jim Bacher at: [email protected] <mailto:[email protected]> _____ To unsubscribe from the EMC-PSTC list, click the following link: https://listserv.ieee.org/cgi-bin/wa?SUBED1=EMC-PSTC <https://listserv.ieee.org/cgi-bin/wa?SUBED1=EMC-PSTC&A=1> &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: https://www.mail-archive.com/[email protected]/ Website: https://ewh.ieee.org/soc/pses/ Instructions: https://ewh.ieee.org/soc/pses/list.html (including how to unsubscribe) List rules: https://ewh.ieee.org/soc/pses/listrules.html For help, send mail to the list administrators: Mike Sherman at: [email protected] Rick Linford at: [email protected] For policy questions, send mail to: Jim Bacher: <[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
