Re: EMC standards for UPS supplies

2003-04-09 Thread David Heald

Try 50091-2.  That's the Euro one and it includes EMI  immunity and 
covers the different operating modes.  For domestic products (assuming 
you're in the US, that is) the normal FCC rules apply - just be sure to 
test all the operating modes (to cover all the bases, 0%, 50%, and 100% 
load in both AC and battery operation should be a good place to start - 
and will probably suffice for the report).  A hint from experience - any 
narrowband emissions will probably stay the same between modes - it is 
the broadband switching noise (for radiated, probably 30-250 MHz or so) 
that will vary between modes.  This should help during the 100% load 
battery scans that need to be completed in a matter of minutes - just be 
sure to test to make sure that this is indeed the case.

One other comment - in the case of 3 phase systems, you may want to 
check to see if the manufacturer has 50091-2 approvals for the EU 
version.  3 phase systems vary here and in the EU and I know of at least 
one manufacturer who specialized the compliance tests to reflect the 
countries in which the product could be installed.  In other words, 
their US version of the product was only labeled for the FCC, while 
their EU version was tested to 50091-2 (and maybe FCC as well??).  A 
domestic sample would most likely have been the FCC only type, but an EU 
version may well be already approved.

Best Regards,
Dave Heald


Garnier, David S (MED) wrote:
 Gentlemen,
 
 I need to bone up EMC standards applicable to UPS supplies,
 (3 phase - 10 to 20 kVa is the range I am looking at.)  
 
 We have a  vendor that has labeled his product stating that it 
 complies with FCC rules for a Class A computing device standards,
 (I think it's a little more complicated than that...)   Could someone
 please suggest a couple standards that I could look up?
 
 Thanks!
 
 dave garnier 
 
 
   David Garnier
   e GE Medical Systems
   ___
   David S. Garnier
   Senior Technician
   PET Engineering
   3000 N. Grandview Ave - M/S W-1250
   Waukesha, Wi. 53188
   Tel: 262.312.7246
   
 
 
 
 
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Re: EN61326 and deviations

2003-04-09 Thread John Woodgate

I read in !emc-pstc that charles.mar...@ps.ge.com wrote (in 6BBE5C5603D
0d611a06f0002a5d6556401497...@nyschx22psge.sch.ge.com) about 'EN61326
and deviations' on Mon, 7 Apr 2003:

Does this mean I can Pass, for example, a product that meets criteria B for
4-3, Rad Im. at let's say 5.5 V/m just in a few frequencies only.

**CriteriON**. Yes, provided the immunity lapses are not too broad in
frequency. How broad is 'too broad' depends on what services use the
band(s) where the lapses occur.

How much highlighting would I have to do in the Test Report and for the
product spec, what level of details? 

Maybe a graph.

Would this include the DoC?

Not in the DoC.

Could I say we meet Criteria A, but in a few frequencies we meet criteria
B, call for more details.

I don't think that's enough; you should provide the details up-front.
-- 
Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk 
Interested in professional sound reinforcement and distribution? Then go to 
http://www.isce.org.uk
PLEASE do NOT copy news posts to me by E-MAIL!


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Re: EMC standards for UPS supplies

2003-04-09 Thread b...@lyons.demon.co.uk

Dave:

IEC 62040-2 - Uninterruptible power systems (UPS) - Part 2: 
Electromagnetic compatibility (EMC) requirements

https://domino.iec.ch/webstore/webstore.nsf/artnum/023663

Regards,

Bill Lyons

-- 
Bill Lyons - b...@lyons.demon.co.uk / w.ly...@ieee.org

Claude Lyons Limited
Brook Road, Waltham Cross, Herts EN8 7LR, UK
Voltage stabilisation and power control
Tel:  +44 1992 768 888
Fax:  +44 1992 788 000
www.claudelyons.co.uk


From: Garnier, David S (MED) david.garn...@med.ge.com
To: 'emc-p...@majordomo.ieee.org' emc-p...@majordomo.ieee.org
Subject: EMC standards for UPS supplies
List-Post: emc-pstc@listserv.ieee.org
List-Post: emc-pstc@listserv.ieee.org
List-Post: emc-pstc@listserv.ieee.org
List-Post: emc-pstc@listserv.ieee.org
Date: Tue, 8 Apr 2003 21:38:11 -0500 

Gentlemen,

I need to bone up EMC standards applicable to UPS supplies,
(3 phase - 10 to 20 kVa is the range I am looking at.)  

We have a  vendor that has labeled his product stating that it 
complies with FCC rules for a Class A computing device standards,
(I think it's a little more complicated than that...)   Could someone
please suggest a couple standards that I could look up?

Thanks!

dave garnier 


David Garnier
GE Medical Systems
___
David S. Garnier
Senior Technician
PET Engineering
3000 N. Grandview Ave - M/S W-1250
Waukesha, Wi. 53188
Tel: 262.312.7246












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FDA requirements for beauty treatment device

2003-04-09 Thread Nick Williams

I've been asked to take a look at the requirements for a beauty 
treatment product which the client wants to push for the US market. 
It works by passing a small current through the skin.

The client is adamant that this is not a medical device in the sense 
of the EU Medical Devices requirements since they make no therapeutic 
claims. We have not been responsible for CE marking it so I'm 
reserving my own judgement on this point, but I'm certainly not going 
to assume that the semantic same work around will provide a release 
from the applicable legislative requirements in the US.

I've spent sometime looking  at the FDA site this morning, but I'm 
having trouble find stuff which might be useful in among the vast 
amount of information on true medical devices and on cosmetics. This 
unit might best be described as a 'cosmetic device' If there's 
someone out there who can point me to a quick primer which gives 
details of what the FDA consider to be within the scope of their 
remit, and what the requirements are for equipment which is within 
their remit, this would help immensely in getting to grips with the 
project.

Thanks

Nick.

P.S. As to whether it actually works or not, well, I haven't seen any 
changes yet, but maybe I'm just too beautiful already!


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