In message <of21bb2494.2026fb8b-on80257154.003ef415-80257154.00405...@3com.com>, dated Tue, 18 Apr 2006, [email protected] writes >I have come across this issue before, and if the PSU is a switch mode >device without an earth connection i.e. double insulated this does not >necssarily constitute a safety issue or is the result of a failure (In >my opinion though it is a quality issue at the very least as it >frightens the hell out of users). Below is an extract from an e-mail >on the subject that came from a safety lab which explains the situation >(all references are to EN60950-1).
That e-mail refers to touching **circuits**. For touching accessible parts, Table 5A applies. -- OOO - Own Opinions Only. Try www.jmwa.demon.co.uk and www.isce.org.uk 2006 is YMMVI- Your mileage may vary immensely. 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
