In message <2a93eb060805050348y65dedd3axd70a38ee5b984...@mail.gmail.com>, dated Mon, 5 May 2008, Grace Lin <graceli...@gmail.com> writes:
>For an electronic dimmer module, which standard(s) applies: EN50428 or >EN60669-1 (and EN60669-2-1)? I list the title of standards below for >reference: > > >EN 50428:2005 > >Switches for household and similar fixed electrical installations — >Collateral standard — Switches and related accessories for use in >home and building electronic systems (HBES) > >EN 60669-1:1999 > >Switches for household and similar fixed-electrical installations — >Part 1: General requirements > >(IEC 60669-1:1998 (Modified)) > >Amendment A1:2002 to EN 60669-1:1999 (IEC 60669-1:1998/A1:1999 >(Modified)) >EN 60669-2-1:2004 > >Switches for household and similar fixed electrical installations — >Part 2- 1: Particular requirements — Electronic switches (IEC >60669-2-1:2002 (Modified)) > >I cannot tell the differences between these two standards. Both of >them are harmonised standards. Their titles are similar. It appears that some difficulties have arisen with standards in this field! I'm puzzled why the three standards include different requirements for so many product characteristics. EN 50428 modifies EN 60669-1 and EN 60669-2-1 in order to convert them into a standard for switches (including dimmers) for home and building electronic systems (HBES). If you are not marketing your product as suitable for this application, just apply EN 60669-1 and -2-1. This assumes that you are concerned with dimmers for household use. If you are considering high-power dimmers, above about 500 W, or dimmers not for use in the home, other standards apply. -- OOO - Own Opinions Only. Try www.jmwa.demon.co.uk and www.isce.org.uk Murphy's Law has now been officially re-named The Certainty Principle 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 emc-p...@ieee.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 emcp...@ptcnh.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald: emc-p...@daveheald.com All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
