Hi Bostjan!
I had heard (and perhaps this is apocryphal) that the 10% was intended to
allow for manufacturing tolerances in the final product.  I don't know how
the number was arrived at.

-Ken

On Sun, May 17, 2015 at 12:13 AM, Boštjan Glavič <bostjan.gla...@siq.si>
wrote:

>  Dear experts,
>
>
>
> Does anyone know what is behind the requirement, that measured input
> current of the unit can exceed the rated current by 10%? Where this 10%
> come from?
>
>
>
> Best regards,
>
> Bostjan
>
>
>
>
>
>
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