I have a maxim, do the EMC Test according to the standard, if it passed, do not test again.
Tim Foo From: Brian Kunde <[email protected]> Sent: Friday, June 28, 2019 9:24 PM To: [email protected] Subject: [PSES] Observation Period during Flicker Emissions Test Reference IEC/EN 61000-3-3:2013 section 6.5 regarding Observation Period. The Electrical Equipment (EE) under test is NOT listed in Annex A. We are trying to make sure we are testing a product correctly. Your help would be greatly appreciated. The EE has a cycle time of about 15 to 20 minutes. Since the cycle time is greater than 10 minutes, it is my understanding that the cycle is NOT repeated to determine the Plt. So would it be correct to start up a 2-hour test, run the EE through a single cycle and then just let the EE run in standby mode for the remainder of the 2-hour test? Here is our situation. We have an EE under test that passes the 10 minute Pst limit with a value around 0.8 (1 is the limit). If we repeat the operational cycle over and over again during the 2-hour test, we again will get a Plt value of about 0.8 (limit is 0.65) and Fail. But if we run the cycle only once and then let the EE sit in standby mode for the remainder of the 2-hour test, the Plt will creep down below 0.65 and pass the test. Again, we want to make sure we are performing the test correctly according to the standard. Thanks to all for help on this. The Other Brian - <snip> NOTICE: This message may contain privileged/confidential information. If you are not the intended recipient of this email, please delete it immediately and notify the sender. - ---------------------------------------------------------------- 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 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 <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher: <[email protected]> David Heald: <[email protected]>
