Dave, My experience is that products which are certified to worldwide
harmonized standards - eg 60950 or 61010 - are evaluated for the full voltage
and frequency as stated on the product nameplate and reported in both the NRTL
cert report as well as the CB report. If you are not asking for both reports
you are not taking full advantage of the evaluation available. Are you using
a standard that is harmonized worldwide? are you requesting full certification
to the standard as part of your NRTL evaluation project?
I agree (and did say so earlier) that this strategy does not cover
everything but will provide regular factory construction inspections to
maintain the safety features of the design as certified As your mother would
say: half a loaf is better than none.
:>) br, Pete
[email protected]
-----Original Message-----
From: Nyffenegger, Dave <[email protected]>
To: EMC-PSTC <[email protected]>
Sent: Thu, Aug 30, 2018 12:24 pm
Subject: Re: [PSES] CE marking - mixture of responsibilities
Not true in my experience. The same lab may do certification reports for EU
declarations in addition to NRTL certification/report. The NRTL listing report
is specific to US and/or Canadian standards. We put a 50Hz input rating on the
nameplate but that’s never been included in the NRTL report. The NRTL factory
inspectors only inspect to the NRTL listing report. And as John said there is
much more to EU i.e. EMC, RoHS, WEEE, then what NRTL covers.
-Dave
From: Richard Nute [mailto:[email protected]]
Sent: Thursday, August 30, 2018 2:06 PM
To: [email protected]
Subject: Re: [PSES] CE marking - mixture of responsibilities
A NRTL tests to ALL the equipment ratings even if they include EU ratings.
Rich
From: John Woodgate <[email protected]>
Sent: Thursday, August 30, 2018 10:57 AM
To: [email protected]
Subject: Re: [PSES] CE marking - mixture of responsibilities
That's a bit dodgy, Pete. The EU product must be for 230 V mains, so the NRTL
won't cover safety test with 230 V 50 Hz input. There may be issues with
different EMC standards, as well.
John Woodgate OOO-Own Opinions Only
J M Woodgate and Associates www.woodjohn.uk
Rayleigh, Essex UK
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