I read in !emc-pstc that Patrick Lawler <plaw...@west.net> wrote (in <jk9g5ugvng02meh8ftttd7aebojbvfs...@4ax.com>) about 'Is there an immunity spec complement to the EN61000-3-3 flicker emissions spec?', on Wed, 30 Jan 2002: >In a recent posting, someone commented on the possiblity of 'flicker' emissions >(controlled by EN61000-3-3) causing a disturbance in 'victim' equipment. > >Would EN61000-4-11 (Voltage dips, short interruptions and voltage variations) >be >an immunity spec complement to EN61000-3-3? Or is EN61000-4-14 (Voltage >fluctuations) more appropriate?
They are complementary. >What is the difference between the two? Section 11 deals with disturbances of three types of voltage/time characteristic. Section 14 deals with disturbances of a fourth type. Of course, unless the relevant EMC product standard calls up section 11 or 14, you do not need to consider them. -- Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk After swimming across the Hellespont, I felt like a Hero. PLEASE do NOT copy news posts to me by E-MAIL! ------------------------------------------- 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.
