In message <[email protected]>, dated Sat, 28 Mar 2009, John Woodgate <[email protected]> writes:
>I don't think I came even close to making that mistake. Oops! I misread your message. I thought you were referring to multiple grounds on the POE cable. What I see you DO mean is that if there is a mains-to-POE short at a long distance from the POE sender, the fault current might not be enough to trip the mains circuit protection but enough to overheat the cable. Yes, it might, but I would hope that the protection these days is not a fuse but an RCD/GFI, in which case the trip current does not cause overheating. -- OOO - Own Opinions Only. Try www.jmwa.demon.co.uk and www.isce.org.uk Things can always get better. But that's not the only option. John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK - 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.ieeecommunities.org/emc-pstc Graphics (in well-used formats), large files, etc. can be posted to that URL. 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 <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher: <[email protected]> David Heald: <[email protected]>
