-Original Message-
From: John Woodgate [mailto:j...@jmwa.demon.co.uk]
Sent: Tuesday, November 05, 2002 1:04 PM
To: emc-p...@majordomo.ieee.org
Subject: Re: docopocoss
I read in !emc-pstc that Rich Nute ri...@sdd.hp.com wrote (in
200211051744.jaa26...@epgc264.sdd.hp.com) about
Vijay,
I am not aware of standards specifying this, but in practical terms,
heat transfer would depend on airspeed, time, surface area, etc. For
example, high speed air would burn much faster than convected air.
If this is a significant safety concern rather than a standards
compliance question,
Bob Johnson
ITE http://www.itesafety.com/ Safety
-Original Message-
From: Robert Johnson [mailto:john...@itesafety.com]
Sent: Tuesday, November 05, 2002 5:34 PM
To: 'Rich Nute'
Subject: RE: docopocoss
docopocoss
This word was unknown to me. I checked an
American
I read in !emc-pstc that don_borow...@selinc.com wrote (in
of32a3a512.366695dc-on88256c67.00802...@selinc.com) about 'Measuring
AC Line Impedance' on Tue, 5 Nov 2002:
Part 1. This measurement will NOT give just the resistive part of the
source impedance.
Your post is so long that it is not
Hi,
In the USA the FDA has a guidance document that some of the branch's (i.e.
Anesthesiology and Respiratory) use. See
http://www.fda.gov/cdrh/ode/638.pdf
This includes both EMI, and mechanical and environmental requirements.
Ned Devine
Entela, Inc.
3033 Madison Ave. SE
Grand Rapids, MI
I read in !emc-pstc that Ken Javor ken.ja...@emccompliance.com wrote
(in 0h54004a5a4...@mtaout05.icomcast.net) about 'common mode immunity
coupling units' on Tue, 5 Nov 2002:
Because the Europeans think that is the right impedance to simulate a
generic transmission line/antenna far from ground.
I read in !emc-pstc that Colgan, Chris chris.col...@tagmclaren.com
wrote (in AE0F4BD08FEAD211895900805FE67B1F01425ABF@CAT) about 'common
mode immunity coupling units' on Tue, 5 Nov 2002:
Please forgive my ignorance but can anyone tell me why above are designed to
give load and source impedances
I read in !emc-pstc that Roman, Dan dan.ro...@intel.com wrote (in
3d90571297abd511957400508bf29c43022cc...@pysmsx101.py.intel.com) about
'docopocoss' on Tue, 5 Nov 2002:
Yes, with apparently only one user of this word on the face of the planet!
:-)
You mean little MEEE?
--
Regards, John
I read in !emc-pstc that Rich Nute ri...@sdd.hp.com wrote (in
200211051744.jaa26...@epgc264.sdd.hp.com) about 'docopocoss' on Tue, 5
Nov 2002:
docopocoss
This word was unknown to me. I checked an
American dictionary and could not find it.
Then, I called up the Google search engine
and entered
On November 5 Sylvia Toma writes;
GR-65 (Network Equipment Building System Requirements: Physical Protection)
has a section (4.1.4) on Heat Dissipation.Table 4-6 outlines the equipment
area heat release for individual frame, multi-frame and shelf equipment for
both natural convection and
Have you checked 60601-1?
Jim
-Original Message-
From: owner-emc-p...@majordomo.ieee.org
[mailto:owner-emc-p...@majordomo.ieee.org]On Behalf Of Naftali Shani
Sent: Tuesday, November 05, 2002 1:27 PM
To: 'Mandel, Joel'; 'emc-p...@majordomo.ieee.org'
Subject: RE: Medical Devices
Hello,
UL emc in Northbrook has the capoability
http://www.ul.com/emc/
Regards,
Ken Hall
-Original Message-
From: robert.s...@flextronics.com [mailto:robert.s...@flextronics.com]
Sent: Tuesday, November 05, 2002 10:16 AM
To: emc-p...@majordomo.ieee.org
Subject: RE: Measuring AC
GR-65 (Network Equipment Building System Requirements: Physical Protection)
has a section (4.1.4) on Heat Dissipation. Table 4-6 outlines the equipment
area heat release for individual frame, multi-frame and shelf equipment for
both natural convection and forced-air fans.
-Original
Joel,
To the best of my knowledge, there are no specific environmental standards for
medical equipment.
IEC 60601-1, (the product safety standard), clause 10.1, states Equipment
shall be capable, while
packed for transport and storage, of being exposed to environmental conditions
as stated
EDD is a world leader in the manufacture, sale, and distribution of Product
Safety Test Equipment. We are in search of turn-key test equipment
developers for both standard off-the-shelf and custom Product Safety
Test Equipment = some products are all mechanical, some are primarily
electrical,
As the average cable impedance of real life cabling
has a mean value of 150 Ohm. Or...at least not 50 Ohm.
When routing cabling on 3 cm height a very good approximation
is achieved (this is using EN 61000-4-6).
Regards,
Gert Gremmen
ce-test, qualified testing
Rotterdam, The Netherlands
Because the Europeans think that is the right impedance to simulate a
generic transmission line/antenna far from ground. I recall a Ph.D. with a
Dutch name making the case that 150 Ohms for CDNs and the like was much
better than 50 Ohms. One thing's for sure, on a qualitative basis. All the
I read in !emc-pstc that Peter L. Tarver peter.tar...@sanmina-sci.com
wrote (in nebbkemlgllmjofmopleaedbebaa.peter.tar...@sanmina-sci.com)
about 'EN60950:2000 EN60950-1 last dates of manufacture' on Tue, 5 Nov
2002:
Note 1: Generally the date of cessation of presumption of
conformity will be
I read in !emc-pstc that Peter L. Tarver peter.tar...@sanmina-sci.com
wrote (in nebbkemlgllmjofmoplececpebaa.peter.tar...@sanmina-sci.com)
about 'EN60950:2000 EN60950-1 last dates of manufacture' on Tue, 5 Nov
2002:
Yes, I have tried speaking with a NB (one of the NCBs I
mentioned is also an NB
Are there any customers-specific requirements? In the telecom industry,
NEBS/ETSI (Telcordia GR-63 ETS 300 019) come to mind.
Regards,
Naftali Shani, Catena Networks (www.catena.com)
307 Legget Drive, Ottawa, Ontario, Canada K2K 3C8
613.599.6430/866.2CATENA (X.8277); C 295.7042; F 599.0445
Does anyone know of a source of test equipment, purchase or rental, or a
test house on the US east coast that can perform the click test described
in CISPR 14?
Thanks,
Robert Seay
Flextronics Compliance Labs
762 Park Avenue
Youngsville, NC 27596
---
Yes, with apparently only one user of this word on the face of the planet!
:-)
TLAs are bad enough, 10LAs I can't handle (guess that would be a TLA as
well).
Dan
-Original Message-
From: Rich Nute [mailto:ri...@sdd.hp.com]
Sent: Tuesday, November 05, 2002 12:44 PM
To:
docopocoss
This word was unknown to me. I checked an
American dictionary and could not find it.
Then, I called up the Google search engine
and entered the word, hoping to find an
English dictionary.
Google immediately came back with the
definition.
Rich
Group:
I am looking for ITE standard (UL or any other) for maximum allowable
exhaust air temperature from information technology equipment?
thank you in advance.
vijay wani
---
This message is from the IEEE EMC Society Product Safety
Technical Committee
Hi All
Can anybody help me out with Environmental testing requirement/Standards
(Temp,Vibration) for medical devices?
Thank You
Joel Mandel
Reliability Dept
ADC Israel
---
This message is from the IEEE EMC Society Product Safety
Technical Committee
Please forgive my ignorance but can anyone tell me why above are designed to
give load and source impedances of 150 ohms?
Cheers
Chris Colgan
Compliance Engineer
TAG McLaren Audio Ltd
The Summit, Latham Road
Huntingdon, Cambs, PE29 6ZU
*Tel: +44 (0)1480 415 627
*Fax: +44 (0)1480 52159
*
Peter,
The note you are referring to is in the OJEC. If you wanted to paraphrase
it, one option would be We (the Commission) have the responsibility for
directives and not you (CENELEC). Therefore, we'll set the Date of
Cessation to be equal to the Date of Withdrawal providing that we can be
Referring to below...
Part 1. This measurement will NOT give just the resistive part of the
source impedance. Let Rs = source resistance, Xs = source inductive
reactance, and Rl = load resistance, Xc = test capacitor reactance (=
1/2piFC), F = 50 or 60 Hz, and Voc = open circuit voltage. The
Richard -
You will also note that Note 1 of the list of harmonized
standards states:
Note 1: Generally the date of cessation of presumption of
conformity will be the date of withdrawal (dow), set by
the European Standardisation Organisation, but attention of
users of these standards is drawn
Thank you, Richard; an illuminating script. Thank you,
also, to all those that have replied to me, on and off the
list.
The crux of my present situation is this: we have a customer
that is claiming relief from having to comply with the
next edition of the standard and is citing an excerpt from
John -
Yes, I have tried speaking with a NB (one of the NCBs I
mentioned is also an NB under certain of the Directives).
Regards,
Peter L. Tarver, PE
Product Safety Manager
Sanmina-SCI Homologation Services
San Jose, CA
peter.tar...@sanmina-sci.com
From: John Woodgate
Peter L. Tarver
Peter
In that case you need to look at the SEMI standards. These are industry
standards which are NOT legally enforced but do have similar scopes to the
European machinery directive, EMC directive and low voltage directive.
Basically if the EUT is CE marked then there is a good chance it will be
Peter,
I provide below a very detailed explanation of why I, as an individual,
believe that it is a good idea to comply with standards whose references
fall within the 'date of cessation' as published in the OJEC. Those who are
not interested in safety or the minutiae of the LVD should stop
Dear All,
I am seeking information regarding the import of mercury containing products
into Europe.
The product in questions contains a Mercury tilt switch.
The switch is encapsulated in epoxy resin (along with the rest of the
components) inside a durable, watertight A.B.S case.
I would like
Hi Folks
Having taken a very brief look at the EN mentioned by Nick, the essential
differences appear to be the addition of Annexes ZA, ZB ZC:
ZA - Testing of a series of transformers (i.e for a family of related
designs - which means that there is also probably something relevant
elsewhere in
Dear All,
I would like to have some information regarding regulatory requirements for
semiconductor equipment for use in the countries specified above.
As always, thanks and have a great day.
This e-mail message may contain privileged or confidential information. If
you are not the intended
Hi All,
I have posted my latest Technical Tidbit to http://emcesd.com a few
days ago. The article is titled Measuring Noise Voltage Across Seams
in Enclosures. This is one of those useful benchtop measurements
that can help avoid compliance problems at the test lab.
The intro and link to
I read in !emc-pstc that Peter L. Tarver peter.tar...@sanmina-sci.com
wrote (in nebbkemlgllmjofmoplemeciebaa.peter.tar...@sanmina-sci.com)
about 'EN60950:2000 EN60950-1 last dates of manufacture' on Mon, 4 Nov
2002:
I now wish to change my query, to alleviate the irritation
some may have felt at
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