EN55024 has a 30% reduction for 25 periods with performance criterion C. This level falls neatly between the 90 to 135 and 180 to 270V bands for auto ranging switch-mode PSUs. The basic standard for this test is IEC 61000-4-11.
Geoff Lister geoff.lis...@motion-media.com) Senior Engineer Motion Media Technology Ltd. Horton Hall, Horton, Bristol, BS37 6QN, UK Voice direct +44 (0) 1454 338561 Voice switchboard +44 (0) 1454 313444 Fax +44 (0) 1454 313678 http://www.motion-media.com -----Original Message----- From: david_ster...@ademco.com [mailto:david_ster...@ademco.com] Sent: 19 September 2000 22:53 To: plaw...@west.net; emc-p...@ieee.org Subject: RE: EN61000-6-2: Voltage dip immunity testing Requirements are product dependent. Check the governing document, either generic or product-specific immunity requirements. EN61000-6-2 is a normative reference, not a governing document, e.g.: EN50130-4 Immunity requirements for Alarm systems calls out .5, 1, 5, 10 periods @ 60% reduction and 0.5, 1, and 5 periods @ 100% reduction David Sterner Alarm Device Manufacturing Co. Syosset NY -----Original Message----- From: plaw...@west.net [mailto:plaw...@west.net] Sent: Tuesday, September 19, 2000 3:05 PM To: EMC-PSTC Subject: EN61000-6-2: Voltage dip immunity testing I was reviewing the voltage dip/interrupt requirements of BS EN61000-6-2:1999, and noticed that one test condition is a 60% dip for 5 periods (0.1s at 50 Hz), while another is 60% for 50 periods (1s at 50Hz). Both tests require Performance Criteria C. - Wouldn't a single test at 50 periods cover this requirement? - Is there a special operating condition or situation intended for this test that isn't mentioned in the standard? ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. 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: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson: pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. 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: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson: pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. 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: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson: pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
