In message <[email protected]>, dated Tue, 13 Feb 2007, Grace Lin <[email protected]> writes >1. Do the following standards apply to dimmers? > > Assuming you mean the ordinary household-type dimmer: > >Emission: EN 55015 Yes > >Immunity: EN 61547 Yes > >Safety: EN 60669-2-x EN 60669-2-1, according to the Scope of the IEC version, which you can see on the IEC web site:
It applies to electronic switches for a.c. only, for the operation of lamp circuits and the control of the brightness of lamps (dimmers) as well as the control of the speed of motors (for example, those used in ventilating fans) and for other purposes (for example, heating controls), with a rated voltage not exceeding 250 V and a rated current not exceeding 16 A. > >Harmonics: EN 61000-3-2 Yes > >Flickers: EN 61000-3-3 Yes, but dimmers don't normally cause flicker and the standard doesn't require them to be tested if they don't. > >Radio: EN 300 328-2 for 2.4 GHz SS Remote Controller if applicable I don't know what this is about. Dimmers do produce mains harmonics up to at least 10 MHz(!) but 2.4 GHz sound highly improbable. > > > >2. What is the major difference(s) between CISPR 15: 2000 with A1: 2001 >& A2: 2002 and CISPR 15: 2005 (7th Edition)? The 7th edition is the >version of CISPR 15. However, the harmonized standard (as of December, >2006) is the other version listed. I don't know, and it's a lot of work to identify the differences. Maybe someone involved in the CISPR/F work knows. > > > >3. Is there any possibility that dimmers are evaluated to EN 55014-1 >and EN 55014-2? A dimmer design engineer requested these standards. >I don't have them in my collection. I wander if I miss something. > Dimmer USED to be in 55014, but they were moved to 55015 (where they should have been) some years ago. > > >4. For wall mount dimmers, per new EMC Directive 2004/108/EC, can they >be categorized to "fixed installations" and not subject to the >affixation of the 'CE' marking or to the declaration of conformity? >How about wall mount dimmers with remote controllers? No. Fixed installations are composed of many individual pieces of equipment, such as all the lighting in a building, not individual devices. > > > >Per Directive 2004/108/EC, the definition of "'fixed installation' >means a particular combination of several types of apparatus and, where >applicable, other devices, which are assembled, installed and intended >to be used permanently at a predefined location". > > > >5. If dimmers are used in industrial environment, is there any addition >or omission of test standards listed under 1.? Now you may not mean the ordinary household-type dimmer. For example, dimmers used in theatres are very different, and include both high-power electronics and extensive data-processing. Some standards other than those listed above are more applicable. -- 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 ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email ______________________________________________________________________
