In message <683371.2674...@web39604.mail.mud.yahoo.com>, dated Fri, 10 Aug 2007, Bill Owsley <wdows...@yahoo.com> writes:
>How about 12 VDC?? Have you ever leaned against a chrome car bumper on >a hot summers day when sweaty and wearing shorts and tried to >disconnect the positive terminal of a car battery? I found the >sensation noticable. Very likely. Under those conditions your skin resistance might be 6 kohms, and 2 mA DC can be felt. >And given the sound of defib unit firing, I don't think it's 10 or 12 >volts. Well, the noise is partly the contactor closing, with perhaps some noise >from thermal effects and electrostriction in the capacitor. I don't think the noise tells much about the voltage, but the burn marks indicate a large current, which implies a high voltage. -- 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 emc-p...@ieee.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 emcp...@ptcnh.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald: emc-p...@daveheald.com 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 ______________________________________________________________________
