I read in !emc-pstc that Gregg Kervill <gr...@test4safety.com> wrote (in <004801c1955f$fe610f10$7e00a8c0@MENHADEN>) about 'EMC-related safety issues', on Fri, 4 Jan 2002: > The semiconductor may switch the relay due to external EMC - but it is > more > likely that the semiconductor or the relay will fail and produce an > 'unsafe' > output.
What disturbance levels do you have in mind? Nearby lightning? I don't see what else will pop a transistor, still less a relay. -- Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk After swimming across the Hellespont, I felt like a Hero. ------------------------------------------- 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: Michael Garretson: pstc_ad...@garretson.org Dave Heald davehe...@mediaone.net 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: No longer online until our new server is brought online and the old messages are imported into the new server.
