I read in !emc-pstc that richwo...@tycoint.com wrote (in <846BF526A205F8 4BA2B6045BBF7E9A6ABC4FEA@flbocexu05>) about 'EMC-related safety issues', on Mon, 7 Jan 2002: >John, I have to disagree with your statement, "As far as CENELEC is >concerned, it was a conscious decision not to incorporate 'EMC and Safety' >issues into EMC standards, but to treat it >as a separate subject."
> >If this is true, how do you explain the fact that the Alarm Systems immunity >standard EN 50130-4 requires a higher immunity levels and that, per clause >6, the acceptance criteria is per the requirements of a CENELEC performance >standard if it is published - e.g. EN 50132-2-1 (CCTV cameras), EN50132-4-1 >(Access Control). This certainly appears to be safety related. I was referring to the Generic and Basic Standards. But the cases you cite are related to *false alarms* or the opposite, i.e. purely system malfunction. Insofar as the standards apply to fire alarms and/or social alarms, safety-of-life is a consequent issue. AFAIK, none of those more stringent limits was determined according to the principles specified in IEC61508. -- 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.
