Jim, I forget where I procured this definition for Criteria B but if you abide by this definition, it would indicate to me that Due Diligence was exercised when testing your apparatus. 10 minutes however seems to be a bit long, where does this constraint come from?
"the apparatus shall continue to operate as intended after the test. No degradation of performance or loss of function is allowed below a performance level specified by the manufacturer, when the apparatus is used as intended. In some cases the performance level may be replaced by a permissible loss of performance. If the minimum performance level or the permissible performance loss is not specified by the manufacturer than either of these may be derived from the product description and documentation and what the user may reasonably expect from the apparatus if used as intended." Regards, Mark -----Original Message----- From: Jim Hulbert [mailto:hulbe...@pb.com] Sent: Wednesday, January 12, 2000 3:08 PM To: emc-p...@ieee.org Subject: Surge Test Performance Criterion A product has a switched mode power supply with a current sensing circuit that causes the supply to shut down when a surge pulse is applied to the AC mains in accordance with EN61000-4-5/IEC1000-4-5. After about 10 minutes, the supply can be turned back on and normal operation of the product can be resumed by the operator. Does this product conform to criterion B of the EN 50082-1 or EN 55024 standards? I believe it does because the sensing circuit is specifically designed to protect the product against this kind of voltage/current surge and the product operation is fully recoverable by the operator afterward. However, I would like to hear how others who do this testing would interpret this. Jim Hulbert Senior Engineer - EMC Pitney Bowes --------- This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators). --------- This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
