The result from either standard is a compliant product, not necessarily a safe
product.  Certainly unlikely to be a safety problem if compliant with an
applicable standard. 

I'd like to see a generalized approach to product safety with one or two
generic standards and not the large proliferation of standards which we have
today. 
_______________________________________
_____________________________________________ 

Ralph McDiarmid  |   Schneider Electric   |  Renewable Energies Business  |  
CANADA  |   Regulatory Engineer 




From:   Richard Nute <[email protected]> 
To:     [email protected] 
List-Post: [email protected]
Date:   09/15/2010 04:01 PM 
Subject:        Re: [PSES] SV: [PSES] IEC 60950-1 vs IEC 60601-1

________________________________




 > But we would also assume that a 601-1 PSU should be more "safe" than an
> 950-1 PSU, seen from an application point of view.

We cannot deem safety to one standard as being "more
safe" than to another standard.

We can say that the standards are different.  The
result of both standards is a safe product.

The standards are for different use domains.  Such
usage differences may be cause for different limits.
requirements, and tests.

And, as one of my HP colleagues said, "Safety
standards are the collective inversion of bad
experiences."  The medical standard is based on bad
experiences in medical situations.  Same for the IT
standard.  So, they are different, but both provide
a safe product.


Best regards,
Richard Nute
Product Safety Consultant
San Diego, California, USA

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