Further on HD topics, I reviewed several HDs on the IHS web site and found them to not be of much use, beyond giving standard references in each country for the point of harmonization, with dates of withdrawal, and the like. I didn't find any, in the dozen or so I looked at, covering diverse topics, that gave any technical details on what was agreed to. There may be some that do, but I didn't see any.
HD 472 S1:1989 and HD 472 S1/A1:1995 are four and two pages long, respectively. HD 472 S1:1989 does have two national deviations on the last page, for Italy and the UK. HD 472 S1/A1:1995 amends HD 472 S1:1989 to remove the UK deviation. Otherwise, both are very short on details. HD472 modifies IEC Publication 38 (now IEC 60038), STANDARD VOLTAGES, CURRENT RATINGS AND FREQUENCIES (Applies to: a.c. transmission, distribution and utilization systems and equipment with standard frequencies 50 Hz and 60 Hz and a nominal voltage above 100 V; a.c. and d.c. traction systems; a.c. and d.c. equipment with nominal voltages below 120 V a.c. or below 750 V d.c.). IEC 60038 is on the sixth edition, second amendment (1997-10), per the IEC web site. I suspect all the relevant changes are in this latest document. Regards, Peter L. Tarver, PE ptar...@nortelnetworks.com -----Original Message----- From: Tarver, Peter [SC1:4N02:EXCH] Sent: Thursday, August 03, 2000 8:43 AM IHS has the mentioned HD 472 S1:1989, plus HD 472 S1/A1:1995 Regards, Peter L. Tarver, PE ptar...@nortelnetworks.com -----Original Message----- From: Patrick Lawler [mailto:plaw...@west.net] Sent: Wednesday, August 02, 2000 5:57 AM Raymond: The web site information only gives reference to the document (verifies the document number and the subject matter), but like many standards today, it's probably copyrighted and needs to be purchased. To All: Are 'Harmonized Documents' available through normal standards services (like IHS, Global Documents, Document Center, Document Engineering, CSS, etc.), or do I need to go directly CENELEC? On Wed, 2 Aug 2000 09:48:48 +0800, Raymond Li <raymond...@dixonsasia.com.hk> wrote: >Patrick, >The below link connects to a blank page. I went to the root of cenelec website >and appears most of areas are password protected. Do I need to pay some fee for >this HD document? If so, from where I can get the details. > >Thanks, > >============================== > >To: EMC-PSTC <emc-p...@ieee.org> >cc: (bcc: Raymond Li/DixonsNotes) > >Subject: Re: Test voltage for products to the U.K. > >I believe this is covered by the european Harmonization Document HD 472 S1. >This isn't a memo - it's a legal document. > >You can find reference to it at >http://www.cenelec.be/BASIS/celis/free/stdpub/SF >Use HD 472 for the 'Standard reference' search term. > > >On Tue, 1 Aug 2000 17:52:55 +0800, raymond...@dixonsasia.com.hk wrote: >>A few years ago, BEAMA or other similar body has issued a memo to public >>laboratories about testing voltage for products selling in the U.K. The memo >>says the U.K. mains is still 240Vac although the rated voltage is agreed to be >>230Vac and the products have to be taken care the safety at 240Vac. Can anyone >>tell me where I can find a copy of this memo and if there is any updated >version to replace this one.
