The PSMA opinion seems pretty clear to me, and I will quote from their
document "Guidance on CE Marking and Power Supplies":
"4 Low Voltage Directive
4.1 Component Power Supplies
These will be CE Marked under the Low Voltage Directive by
manufactureres (sic) declaration to EN60950 with the provision that
the final equipment manufacturer will be responsible for protection
against personal contact with live parts."
Of course, TUV says "We are a competent body....." and basically
shoots down the PSMA as being just an opinion by a manufacturers'
group. My experience with Competent Bodies is that you get a different
interpretation or answer depending on which one you ask. Sort of goes
against the definition of "competent" I would think.
The problem I have is that the PSMA opinion seems to make a lot of
sense to me, and I have a problem rationalizing the TUV stand. BTW,
this is only one particular TUV organization I am referring to, so
please do not associate all of the TUV organizations with this issue.
However, I would be very interested in hearing the other TUV opinions
also.
______________________________ Reply Separator _________________________________
Subject: CE Marking on Component Power Su
Author: grasso%[email protected] at INTERNET
List-Post: [email protected]
Date: 9/13/96 1:41 PM
Referring to the "Guideline on the Application of the EMC Directive...1995"
If the component is designed for incorporation into an "apparatus" and are
not "placed on the market" for distribution or use then components of this
type are NOT considered subject to the rules laid down in the EMC Directive.
But the end product must comply.
So, TUV is correct in that the EMCD is NOT required BUT I'm not sure they are
correct in that if you declare to the LVD that the EMCD is mandatory. As the
manufacturer of the PSU you can self declare to what YOU belive the PSU is
subject to.
Thought: There is a great deal of interest by manufacturers that rely on OEM
vendors on the performance of the product purchased & integrated
into the final product. A lot of manufacturers INSIST on the testing
being performed to say the EMCD to ensure minimal problems at the
final test. Do think that this is what PSMA is referring to?
----------------( Forwarded letter 1 follows)---------------
There seems to be much confusion on whether or not a component power
supply, similar to a PC power supply, needs a CE Marking after Jan 1,
1997. The Power Supply Manufacturers' Association (PSMA)in the UK is
of the opinion that a CE Marking is necessary. A certain TUV
organization is adamant that no marking is required and, if a marking
is applied for the LVD then the power supply would also need to meet
the EMC Directive requirements.
In our case, with a point of sale terminal (ITE), the entire terminal
is approved against the LVD and the EMC Directive. The power supply by
itself, however, would not necessarily meet the EMC requirements.
I would appreciate any opinions or thoughts on this matter.
Jim Lyons
Mgr - Product Compliance
GTECH Corp.
