In message 
<[email protected]>, dated 
Wed, 14 Jun 2006, "Sosnoski, Michael" <[email protected]> writes

>IEC 61000-3-2 is the applicable standard. My question is how do you 
>know if this standard needs to be applied to a particular product?

For Europe, you read the listing of standards 'notified' in the Official 
Journal under the EMC Directive, Then, if it isn't obvious from the 
titles of the standards,  you look at the Scope clauses of these 
standards, which you can see for free on the IEC web site, if the 
notified standard is an EN based on an IEC standard, to see if they 
apply to your product.

>Yes, the standard states that it applies to any piece of equipment that 
>draws <= 16 Amps of mains power. This leads me to believe that without 
>reading every standard published, you don't know which ones to apply. 
>It seems that there is a larger view of the picture that is missing. 
>Does anyone have a link to this picture?

See above.
>
>Do you know which EU regulation requires that power supplies over 50W 
>need to be power factor corrected?

There ISN'T one! This seems to be becoming almost an urban myth.
-- 
OOO - Own Opinions Only. Try www.jmwa.demon.co.uk and www.isce.org.uk
2006 is YMMVI- Your mileage may vary immensely.

John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK

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