Hi Jim, It's nice to hear from you. So, that bothers you, huh? I believe that that EN50082-1 provision was provided because there is no one that knows the product as well as the manufacturer. I also believe that its writers knew that, too. Having others outside of the manufacturer (say the test lab) stipulate the immunity failure criteria could arbitrarily and negatively affect the outcome of the immunity tests. Please remember that the term "manufacturer" applies not only to the production segment, but to all segments that make up the greater organization. Your EMC group is an integral part of that organization. In fact, you just stated that your EMC group, as a part of manufacturer, do this very thing. Your group internally sets specific requirements based on specific performance criteria. Are these performance (failure) criteria then relayed to the test lab? Comments? Just a few cents worth of my opinions. Best regards, Ron Pickard [email protected]
______________________________ Reply Separator _________________________________ Subject: Re[2]: Inconsistency of EN 50082-1 with 1000-4 series Author: "Jim Hulbert"<[email protected]> at INTERNET List-Post: [email protected] Date: 9/4/98 9:18 AM What bothers me about the criteria in EN 50082-1 is the provision for the manufacturer to define the permissible loss of performance. This opens the door for the manufacturer to simply relax the product specification to "pass" the test. Luckily, our EMC group generally inputs the EMC requirements into our product specifications so that we have the opportunity to define reasonable performance criteria. Jim Hulbert Pitney Bowes ______________________________ Reply Separator _________________________________ Subject: RE: Inconsistency of EN 50082-1 with 1000-4 series Author: "Bailin Ma" <[email protected]> at SMTPGWY List-Post: [email protected] Date: 9/3/98 3:50 PM Hi Richard, You are RIGHT! I agree with the word "precedence". It would be the best, I think, if all of them sing at the same tone. B Ma ------------- Original Text From: "WOODS, RICHARD" <[email protected]>, on 9/3/98 1:00 PM: To: Cc: According to the Basic standards, the criteria in the Generic standard takes preceident over the criteria in the basic standard, so there really is no conflict even though they do differ. > ---------- > From: Bailin Ma[SMTP:[email protected]] > Reply To: Bailin Ma > Sent: Thursday, September 03, 1998 12:17 PM > To: [email protected] > Subject: Inconsistency of EN 50082-1 with 1000-4 series > > Hi group, > > There is a paragraph of "6 Performance criteria" on Page 5 of > EN > 50082. It describes Performance criterion A, B and C. > > On the other hand, there is a paragraph of "9 Test results and > test > report" in 1000-4-2, 1000-4-3, 1000-4-4, 1000-4-5, 1000-4-6 and so on. It > asks us to classify the test results in four classes: a), b), c) and d). > > The above A, B and C overlap what a), b), c) and d) are covering. > Unfortunately, they are not totally consistent. You can find a part of b): > > "temporary ... loss of function ... self-recoverable" in 1000-4 series is > the same as a part of Performance criterion C: "Temporary loss of function > > ... self-recoverable" in EN 50082-1. As you all know, EN 50082-1 calls for > > 1000-4 series as basic standards. > > What do think of the inconsistency? > > Thank you. > Best Regards, > Barry Ma > > > > > --------- > This message is coming from the emc-pstc discussion list. > To cancel your subscription, send mail to [email protected] > with the single line: "unsubscribe emc-pstc" (without the > quotes). For help, send mail to [email protected], > [email protected], or [email protected] (the list > administrators). > --------- This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to [email protected] with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to [email protected], [email protected], or [email protected] (the list administrators). --------- This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to [email protected] with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to [email protected], [email protected], or [email protected] (the list administrators). --------- This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to [email protected] with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to [email protected], [email protected], or [email protected] (the list administrators). --------- This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to [email protected] with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to [email protected], [email protected], or [email protected] (the list administrators).
