Donald
At the risk of pre-empting others with more time to give a comprehensive
answer, within Europe this type of product would fall under the General
Product Safety Directive 92/59/EEC
http://europa.eu.int/eur-lex/en/lif/dat/1992/en_392L0059.html
Currently this is rather vague on applicable standards, but I believe that
it is in process of being amended to be harmonised standards-based directive
like the LVD, RTTE Directives etc. This amendment may (already have
been?)be passed this year to come into operation in 2003.
As such, you would generally apply the same safety standard that would apply
if the product were actually mains powered, e.g. EN60950 or EN60065.
Obviously the requirements for the AC mains circuits would not apply but -
in particular - the flammability requirements would be very applicable.
In practice - and even if the new text is still vague - I have always
thought that there was very little obvious alternative anyway - especially
in countries like the UK where a due dilegence defence in law in
necessary.
Regards
John Allen
Thales Defence Communications Division
Bracknell, UK
-Original Message-
From: Donald McElheran [mailto:don...@hq.rossvideo.com]
Sent: 12 November 2001 15:41
To: emc-p...@ieee.org
Subject: Group:
Group:
We are currently in the process of a new table top type product design which
will be powered via an external internationally certified DC supply.
I have been asked to determine what compliance standards will have to be
applied to ensure that the product meets regulator compliance requirements.
The appropriate EMC standards are quite straight forward but I am having
more difficult nailing down product safety requirements.
The product being supplied via an external low voltage ( 20V DC @ 6A )
appears to technically fall outside the scope of both the European LVD
directive and North American NRTL certification requirements for products
directly connected to the public mains.
The product is similar to that of a laptop computer running from an wall
mounted adapter.
Questions have been raised regarding flammability of enclosure materials
which will have a significant impact of the products cost.
Could any member of the forum who may have had to address similar situation
share there thoughts?
At this point it would appear that provided we ensure the external power
supply conforms to any applicable safety standards in which the equipment is
to be marketed that their is no legislated (hate to use this term)
requirements to safety certify the table top product.
Comments?
Donal McElheran
Product Compliance
Ross Video Ltd.
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