Martin, While I may disagree with some of the technical content of various standards (I think they need to add more details to accommodate smaller, more distributed systems), I heartily agree with the need for them. The immunity tests in particular represent real-world threats to equipment, and a lot of electronics out there are only marginally compliant, in spite of the approvals marked on the case. I've had several instances where third party devices failed permanently when used as part of setups for immunity tests. They probably passed testing only in certain ideal configurations that don't represent actual field installations.
Scott Lacey -----Original Message----- From: Martin Rowe (TMW) [SMTP:m.r...@ieee.org] Sent: Friday, March 24, 2000 9:54 AM To: emc-p...@majordomo.ieee.org Subject: The wisdom behind all these standrads I've been reading messages from this list for several months, and I see many questions about how to comply with the long list of EMC standards. Yet, I can't recall anyone ever questioning the appropriateness of any standard. That is, should the standand add value to a product or to those who use it? Is it that the EMC engineer's place is not to question the wisdom of a standard's value, but simply to make products with those standards, whether or not we agree with the intent of those standards? That's not to say that these regulations are bad. Maybe they're good because they make the world a better place for those who use electronic products. Just wondering. ---------------------------- /\ | Martin Rowe | / \ | Senior Technical Editor | / \ /\ | Test & Measurement World | / \ / \ /\ ____ | voice 617-558-4426 |/ \ / \ / \/ | fax 617-928-4426 | \ / \/ | e-mail m.r...@ieee.org | \ / | http://www.tmworld.com | \/ ---------------------------- ------------------------------------------- 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