Dear experts, We have an IT product intended for connection to OVC IV (6kV transients). Input filter also comprises two IEC 61051-2 certified varistors (L to middle point, N to middle point) and one GDT (middle point to PE).
Annex G of IEC 60950-1 is saying that we need to measure transient voltages (level of transient after the input filter) with any surge supressors in primary circuit disconnected. Is this also applicable for certified varistors and GDT? How can manufacturer reduce transient level? Use of IEC 61643 certified SPD is not possible. Thank you for your support. Best regards, Bostjan - ---------------------------------------------------------------- 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]>
