Derek: If you do not have confidence in the product you are buying then select another vendor. I understand your concern about products but I also understand your perspective as a test laboratory owner. Please look at the perspective of the consumer who has to pay for the extra assurance and the producer who has to wait to sell his product until he gets permission for other authorities before the product can start producing revenue.
How many tests are necessary to assure the product will be sufficient to meet the expectations of the customer? This question has a different answer if you are the consumer, the test house, the national authorities or the manufacturer. All I am saying is we need to be practical and have a balance. Dave George Unisys -----Original Message----- From: [email protected] [mailto:[email protected]] Sent: Tuesday, March 02, 1999 2:17 PM To: [email protected]; [email protected]; [email protected] Cc: [email protected] Subject: Re: New EMC requirements proposed for IEC60335 Dave, I see here that we hold a different opinion... My opinion is that when I buy something I expect it to work. Perhaps with us all using windows this expectation has slipped a little ( come on LINUX! ). As a consumer, immunity testing is not a quality issue, it is a must. I don't hold true to the aspect of EMC being expensive either, my lab ( and I bet a number of other labs ) charge is well under $1k/day for testing. We can cover a lot of ground in that time. I don't believe that the bigger, more expensive labs do a better job either. They have much more over head, which you end up paying for... Ironically, they have little knowledge about what's being tested too: I bet a load of things ( which you can be held accountable for ) get missed. I believe that the best solution is a smaller lab that serves several companies, so that they intimately know what's being tested, and in short order can fully evaluate new designs and/or design changes. This is the way we operate, and so far, we have impressed our customers and the competent body we use when called for. Ironically, I've seen companies spend more money trying to avoid meeting EMC requirements than it would cost to comply. EMC should be a way of life, if it's designed in ( and by now it should be ), verification by test is not that expensive.... Derek Walton. Owner L F Research --------- 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], [email protected], or [email protected] (the list administrators).
