John Just to tease this out a little more. I may not have stated it very clearly in my last email.
I feel that test labs and manufacturers will be reluctant to put a statement in their reports declaring that they are using a concession, which is what they will have to do if they use the old equipment. On that basis some labs will purchase the new analyser. Regarding the Japanese Pharmaceutical Affairs Law, I understand that the new instruments are being bought to meet the requirements of the new 61000-4-7 standard. Therefore, the concession does not appear to be used in this case. I can't find out if the Japanese PAL is applying the new standard or if the test labs there are just being over zealous. Regards John McAuley www.cei.ie In message <20071026175314.QZCT4690.viefep34-int.chello.at@x243977>, dated Fri, 26 Oct 2007, John McAuley <[email protected]> writes: >It would appear that the measurement of interharmonics is going to be >effectively a requirement from early next year. Otherwise, it will be >necessary to put a qualifying statement in the test report to explain >that the old standard is being used. No, not the old standard, the Edition 1 instrument. The NEW standard applies, but IT contains the concession to use the old instrument. >In addition, in Japan, as far as I can determine, the Pharmaceutical >Affairs Law requires the new version of 61000-4-7. That's OK, as long as it doesn't say that the concession is not to be applied. If it does say that, please let me know. The IEC is intent on discouraging national bodies form 'gold plating' its standards - making them more stringent. >This is only one market segment, of course. I understand that sales of >new harmonics analysers is up in Japan at present. Quite likely; the new ones are much better designed than some of the old ones. -- OOO - Own Opinions Only. Try www.jmwa.demon.co.uk and www.isce.org.uk There are benefits from being irrational - just ask the square root of 2. John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to [email protected] Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas [email protected] Mike Cantwell [email protected] For policy questions, send mail to: Jim Bacher: [email protected] David Heald: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.488 / Virus Database: 269.15.10/1091 - Release Date: 24/10/2007 14:31 No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.488 / Virus Database: 269.15.10/1091 - Release Date: 24/10/2007 14:31 - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to [email protected] Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas [email protected] Mike Cantwell [email protected] For policy questions, send mail to: Jim Bacher: [email protected] David Heald: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email ______________________________________________________________________
