Jim, I agree with you, on the basis that in this case, a complete shut-down is a designed-in function of the product, and the standard says "No degradation of performance or loss of function is allowed below a performance level specified by the manfucturer". You, as the manufacturer, are specifying this 'loss of function'.
In my mind, all you have to do is make the end user aware that a shut-down will occur when a surge is detected, and you should be OK. Cheers, Carlos. Please respond to "Jim Hulbert" <hulbe...@pb.com> To: emc-p...@ieee.org cc: (bcc: Carlos A. Perkins/WIN/Effem) From: "Jim Hulbert" <hulbe...@pb.com> on 12/01/2000 20:08 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).
