John, All that I am saying is that the manufacturer has to show the product that he produces is in compliance. It does not discriminate if the manufacture makes 10 pieces a year of 1 million they all have to comply. How does one do that? They have to periodically test product off the assembly line or document a engineering change. These are loosely worded in all regulations but just about always ignored.
Mark J. Kirincic [email protected] From: "John Woodgate" <[email protected]> To: <[email protected]> Sent: Friday, March 28, 2003 10:07 AM Subject: Re: OK, what's going on? > > I read in !emc-pstc that Mark Kirincic <[email protected]> wrote > (in <098201c2f521$284e4820$6501a8c0@kristina2005>) about 'OK, what's > going on?' on Fri, 28 Mar 2003: > > >By the way I do not work for a test house, > > I didn't imply that you did. > > > I am just trying to clean up and > >legitimize the rules that were set up by the EC and FCC as well as other EMC > >laws out there. > > But is that the right thing to do? More and more people are questioning > the whole basis of EU EMC regulation, partly because it is over- > stringent and partly because the testing is not based on sound technical > principles. The latter is because we just don't know how to do that! > > The test methods and the limits are in many cases simply derived > pragmatically. 'If we do the tests this way and apply this limit, we > reduce complaints of EMI to an acceptable minimum.' For this to work as > a practical measure, **there has to be an efficient complaints procedure > and a system for following up complaints properly.*** In many cases > now, neither of these conditions is met, due to constraints on > expenditure. So, a lot of costly testing is being done, with no feedback > on whether it is more than achieving its object, or dismally failing to > achieve it. > > -- > Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk > Interested in professional sound reinforcement and distribution? Then go to > http://www.isce.org.uk > PLEASE do NOT copy news posts to me by E-MAIL! > > ------------------------------------------- > This message is from the IEEE EMC Society Product Safety > Technical Committee emc-pstc discussion list. > > Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ > > To cancel your subscription, send mail to: > [email protected] > with the single line: > unsubscribe emc-pstc > > For help, send mail to the list administrators: > Ron Pickard: [email protected] > Dave Heald: [email protected] > > For policy questions, send mail to: > Richard Nute: [email protected] > Jim Bacher: [email protected] > > Archive is being moved, we will announce when it is back on-line. > All emc-pstc postings are archived and searchable on the web at: > http://www.ieeecommunities.org/emc-pstc > This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: [email protected] Dave Heald: [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
