>> (the unplugging process may need to be repeated a few times until the capacitor is disconnected when the mains is high at the time of disconnection and so gets a "decent" charge!) <<
At a former employer, we monitored the wave form with a 'scope, and repeatedly opened and closed the connection to the power line until disconnection could be seen to have occurred at (or very near) the peak of the wave form, then watched the discharge. None of us EVER felt tempted enough to question the 'scope display and experience the discharge personally - and we went to some trouble to arrange things so we would not do. Anyone who had doubted the necessity of the test was converted by seeing the "potential" for trouble. Cortland ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com 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://ieeepstc.mindcruiser.com/ Click on "browse" and then "emc-pstc mailing list"