=?big5?B?YWxhaW4uc2FtbGFpICinwrDquvop?= <alain.sam...@gigabyte.com.tw> wrote (in <AA76912E8A1F7B49A2096556B7B5ED819432CE@gmail4.gigabyte.intra>) about 'origin of 240VA and 20J in 60950', on Tue, 20 Sep 2005:
>Can anyone explain how 240VA and 20J were calculated in the definition >of hazardous energy level, clause 1.2.8.9 of IEC60950 ? I could suggest 'examining the entrails of birds, and conducting a ritual with yarrow stems', but seriously, this sort of thing isn't calculated, it's based on experience and deliberate experiments. -- Regards, John Woodgate, OOO - Own Opinions Only. Deadlines are 90% of deadliness. http://www.jmwa.demon.co.uk Also see http://www.isce.org.uk - 2005 IEEE Symposium on Product Safety Engineering 3-4 October Schaumburg, IL http://www.ieee-pses.org/symposium 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 emc-p...@ieee.org Instructions: http://listserv.ieee.org/listserv/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas emcp...@ptcnh.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
