I thought about this some more and I remembered an article (link below) discussing the validity of the charts on PCB trace temp rise vs. current in IPC-D-275. If you read the article you can see that this is not a simple problem even for a solid conductor. So your advice on contacting the manufacturer is probably the way to go... http://www.ultracad.com/articles/pcbtemp.pdf
John Woodgate <[email protected]> wrote: In message <[email protected]>, dated Thu, 19 Jul 2007, Alex Horvath writes: >Since the cable has a continuous current rating from the manufacturer >the first spec is a no-brainer. However, the second specification is >beyond my abilities to anayze and in fact is probably quite complex. Have you tried asking the manufacturer? Ideally, any performance specification should come from, or be endorsed by, the manufacturer. If you generate it without endorsement, and the manufacturer changes the design in such a way that the spec is no longer met, you have to carry the can. -- OOO - Own Opinions Only. Try www.jmwa.demon.co.uk and www.isce.org.uk There are benefits from being irrational - just ask the square root of 2. John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK - 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 ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email ______________________________________________________________________
