Gary, Check the line to ground caps. We always insist on Y1 caps under IEC 60384-14 in this position or 2 each Y2 caps in series. We always type test our power supplies and machines at 3000 volts AC. Some will insist they want to use DC for these tests but we have not had a problem as long as the Y-caps are good quality.
You should not be seeing capacitor failures in those positions at those voltages. Gregory H. McClure Lexmark Product Safety 859 232 3240 office 859 232 6882 fax Confidentiality Notice: This e-mail message, including any attachment, is for the sole use of the intended recipient(s) and may contain confidential information. Any unauthorized review, use, disclosure or distribution is strictly prohibited. If you are not the intended recipient, please contact the sender, by e-mail, and destroy all copies of the original message. - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to [email protected] 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 [email protected] Mike Cantwell [email protected] For policy questions, send mail to: Jim Bacher: [email protected] David Heald: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email ______________________________________________________________________
