Hello group, I have a question about the surge test for a 27VA ac adapter (without PE and external earth connections) for IT equipment.
EN55024 refers to EN61000-4-5 requiring a test level of 1kV between L and N and 2kV between L and PE as well as between N and PE. The power supply failed the common mode tests of 2kV with damages. The power supply manufacturer argues that the power supply has no PE connection and therefore these common mode tests are not required. Please give me your experts comments. Thanks Helmut Koester PSi Engineering GmbH mailto:h.koes...@psi-engineering.de - ---------------------------------------------------------------- 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://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <emcp...@radiusnorth.net> Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher: <j.bac...@ieee.org> David Heald: <dhe...@gmail.com>
