In message <4c5e6457cd7911469a07260381288c28d3374...@orsmsx502.amr.corp.intel.com>, dated Thu, 3 Feb 2011, "Pettit, Ghery" <[email protected]> writes:
>As I understand it, the push for these additional requirements is due >to a specific problem that has cropped up. Inverters for solar voltaic >cells are coupling noise back onto the power lines which is causing >difficulties for smart meters. It's by no means only inverters. Any directly-connected switcher circuit does it. >OK, that's a problem, we need to deal with it. The objections are >related to a blanket "fix" that will apply to all products, raising >costs with no perceived benefit. That has already been raised. By analogy with IEC 61000-3-2 and -12, such a standard would be a Product-family standard, applicable to everything connected to the public mains supply. However, if it is classed as a Basic standard, it only applies if called up in product standards, so does not apply to everything automatically. In the report of the first informal IEC meeting on the subject, that point is made, but a Basic designation may not be accepted. In Europe, there is a further safeguard against having to undertake needless testing. If the manufacturer validly justifies not testing, on sound technical grounds, in his EMC Assessment, he need not test. -- OOO - Own Opinions Only. Try www.jmwa.demon.co.uk and www.isce.org.uk John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK Plural: data, criteria, phenomena. Singular: datum (different meaning: use 'data element' for a single item), criterion, phenomenon. 'Effect' is a noun, 'affect' is a verb (except in psychiatry). - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected]> All emc-pstc postings are archived and searchable on the web at: http://product-compliance.oc.ieee.org/ Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ 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]>
