Hello Chris, The creepage and clearance tables in the new versions of EN60065:2002 edition have been adopted from the EN60950 standard...It is a continuing effort to slowly merge these two standards I believe so you are correct the spacings >from the old version of the standard will not correlate to the new version. Also you should be careful when comparing spacings between the old, EN60065:1998., and the new EN60065:2002 versions . In the EN60065:1998 edition creepage and clearance distances were the same distance so there was only one "table" (fig 9) while in the new EN60065:2002 edition for mains connected equipment they have split Creepage and Clearance out into two distinct tables. Table 8 for Clearance and 11 for Creepage. There are other clearance tables for non mains connected equipment (10) and high peak voltages (9) but for your question you need to look not only at table 8 but also table 11 Concerning the Clearance spacings being half as much in the new 2002 version of the standard actually the spacings are slightly lower "Old" EN60065:1998 Clearances fig 9= 3mm/6mm New EN60065:2002 Clearance Table 8= 2/4mm In EN60065:2002 Clearance Table 8 you can only use the reduced spacings in parenthesis (1.5/3mm) if you have a Manufacturing Quality Control program in place which conforms to requirements similar to Appendix M...See note 2 under table 8 for details. As mentioned above since EN60065:2002 edition now separates Clearance from Creepage you really should look at table 11 for Creepages as these spacings are larger then the Clearances in table 8 for the same working voltage. EN60065:2002 Creepage per table 11 for your question would be 2.5mm/5.0mm so if you are checking pcb spacings you want to go with the table 11 Creepage distances and not the table 8 clearances... Hope this helps..... regards, John Tyra Manager Product Safety
Bose Corporation The Mountain, MS-450 Framingham, MA 01701-9168 Phone: 508-766-1502 Fax: 508-766-1145 From: [email protected] [mailto:[email protected]] On Behalf Of James, Chris Sent: Thursday, January 12, 2006 11:09 AM To: [email protected] Subject: EN 60065:2002 - Table 8 creepage and clearance The table 8 values in the new standard do not appear to correlate with the Fig 9 values of the previous standards. Fig 9 gave basic clearance as 3mm and reinforced as 6mm for nominal 240Vac whereas Table 8 seems to imply values half of that. What am I missing??? Regards, Chris This message is intended only for the use of the person or organization to which it is addressed, and may contain information that is privileged, confidential and exempt from disclosure under applicable law. If the reader of this message is not the intended recipient, or responsible for delivering the message to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please notify the sender immediately by email and delete the original message immediately. The sender, its subsidiaries and affiliates, do not accept liability for any errors, omissions, corruption or virus in the contents of this message or any attachments that arise as a result of e-mail transmission. Thank you. - ---------------------------------------------------------------- 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 message (including any attachments) may contain confidential information intended for a specific individual and purpose. If you are not the intended recipient, delete this message. If you are not the intended recipient, disclosing, copying, distributing, or taking any action based on this message is strictly prohibited. - ---------------------------------------------------------------- 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 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
