To all interested parties
(especially those who could not get
to Montreal!!)
The Rocky Mountain Chapter (RMC) of the Institute of Electrical and Electronic
Engineers (IEEE) Electromagnetic Compatibility (EMC) Society will hold its 11th
annual Regional EMC Symposium on Wednesday, October 3rd, 20
I read in !emc-pstc that Hart, Michael wrote (in
<9efd49e2fb59d411aaba0008c7e675c004a41...@emss04m10.ems.lmco.com>) about
'EN61800-3:1996 Specification', on Tue, 28 Aug 2001:
>With respect to the immunity requirements, can someone please tell me what
>immunity tests (radiated immunity, ESD, EFT,
I read in !emc-pstc that William D'Orazio wrote (in
<1c89780c4179d3118c580090277193580fbcc...@caemsx01.cae.ca>) about
'EN61000-3-2,3', on Tue, 28 Aug 2001:
>My understanding of EN61000-3-2,3 is that they are applicable to the
>power input terminals of equipment intended to be connected to system
The Curtis-Straus Update is for August, 2001 is now available at:
http://www.conformity-update.com
The headlines are:
Reprieve: You Can Use EN 55022:1994 For Two More Years.
UK: Even EN 55022:1998 Is Not Tough Enough.
New Standards For The EMC And R&TTE Directives.
The FCC Officially Out
Does anyone have a feel for how close the spacing requirements in ETS 300
119 have to be met? There doesn't seem to be any tolerances, mins or maxes,
i.e. the implication is that all dimensions must be met exactly.
Anyone fallen down in Europe over this? Also, in ETS 300 119-4 it seems that
D1 is
I currently have a motor controller from an outside vendor which lists
compliance to the EN61800-3:1996 requirements. I'm attempting to correlate
the frequency ranges evaluated and the applicable limits tested under
EN61800-3 to the equivalent MIL-STD-461 requirements.
According to the manufac
Just to add to what others have said, I was assuming single
no redundancy failure mode. If the product being tested
has m-of-n redundancy, things get very complicated
very quickly.
In other words, if a shelf of 8 modules can continue
to run after 2 of the modules fail, that product has a
Hi,
Per the FDA guidance on EMC http://www.fda.gov/cdrh/ode/638.pdf
The limit is 3 V/m. See the page numbered 25 of the document.
Note: This is for general medical equipment! There is a guidance document
for incubators http://www.fda.gov/cdrh/ode/incubator.html
It references IEC 60601-2-19 an
Gents,
My understanding of EN61000-3-2,3 is that they are applicable to the
power input terminals of equipment intended to be connected to systems with
240/415-250/430V operating at 50-60Hz. Therefore if 480 V is supplied to a
building, with a local transformer to step the voltage down t
First, I am no expert on accelerated life testing. However,
I do know that life testing depends a good deal on the nature
of the product. In other words, how will it be used, how often
will it be used, and what are its failure modes?
An electric pencil sharpener may be used only five to ten t
Hi Massimo,
Doug and Tania have the right idea. Basically, you want to find a
combination of operational and non-operational temperature excursions that
identify early life failures and manufacturing defects. This is going to be
very specific to your product. A successful burn-in programs has t
I don't think this is what they had in mind for this emc site!
I was actually hoping for some free tips.
"The cost of the Manufacturers Guide to Safety Agency Submittal is now
available for the low price of
$ 49.95 (US Dollars)
(A small price to pay when compared to the cost of an agency or
Massimo,
Have you checked into the Reliability Analysis Center??
They are located at the former Griffiss Air Force Base in Rome, NY.
Electronics reliability is their sole purpose in life. They may be able
to help you out (for a small fee :-)
You should be able to find them on the web by lookin
I read in !emc-pstc that George, David L wrote
(in <3B10FF0A008FF6458711E6E375E830412C16A6@USTR-
EXCH2.na.uis.unisys.com>) about 'CE test suite for computers', on Mon,
27 Aug 2001:
>John:
>After all your years on the committee and having heard all the technical
>arguments, I am surprised the comm
Massimo,
I have no experience with medical devices, and there may be formal protocols
that are recommended. Here are a few that I've observed performed on ITE
equipment for non-medical applications.
168 hours burn-in in a heat/humidity chamber, error free;-- if something fails,
it is fixed or
Massimo Polignano wrote:
>
> What kind of thermal cycling (temperature limits and test duration) to
> accelerate one year of life?
Accelerate one year of normal life to what - a month, a week?
Very difficult to say. And highly statistical to get
sufficient confidence level.
All based on th
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