In the interests of my own credibility on the board (if I have any?) I should wave the white flag of surrender and own up to having posted a nonsense message on Oct 9th in response to the genuine request for information about creepage limits. For some inexplicable reason my 'funny bone' was tickled and I wrote and posted the stuff about creepage and car batteries, copied below.
I offer my apologies to board members who have been inconvenienced by this piece of tom foolery. In future I'll make it much clearer when sending a spoof post. As it happens the responses have been interesting, a testament to the intelligence and good humor of the board. Thank You Ted Rook copy of the spoof post: This is because when you double the voltage the power is proportional to a quarter of the current squared. In America the 120V power is at lower voltage but the current is twice as much and so the creepage is twice as well. Very high voltage circuits hardly creep at all whereas low voltages creep the most. That is why you should never join the two negative terminals when you jump start a car, the car battery charging circuits have so much creepage they can melt the battery. I though everybody knew that........... end of copy ------------------------------------------- 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"
