at:
http://www.ieeecommunities.org/emc-pstc
Title: RE: Safety EMC - which 1st?
Bill,
My preference is to design in safety while staying mindful of EMC.
Although it is not possible to accurately predict exactly how a change
will affect EMC, it is generally much easier to do so with safety
Bill et al,
IMO there is no easy answer to the problem of one area of test
provoking design changes affecting another area of test. A diverse
product line, such as individually sold PC cards and a line of
complete systems, would call for a different approach as needs demand
(often cost
Always do all Emissions testing first.
Followed by EMC testing.
Then Safety is last.
Regards, Doug McKean
_
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In addition, some design elements used to mitigate EMC
issues, such as compression gasketing, can be inadvertently
damaged during safety testing.
In order to maintain the EMC integrity of an
off-the-factory-floor product, it often makes sense to test
EMC first.
Regards,
Peter L. Tarver, PE
I would agree except for medical equipment (especially patient connected).
EMC engineering likes to shunt energy to ground and frame. This is a big
no-no for medical safety.
Bob Heller
Senior EMC Engineer
3M EMC Laboratory, 76-1-01
St. Paul, MN 55107-1208
Tel: 651- 778-6336
Fax:
It may not be always true, but my experience is that Safety compliance can
pretty much be achieved by careful implementation of the requirements in and
during product design. If all the requirements and recommendations have been
followed, you can mostly be certain of the result. This is not
I read in !emc-pstc that FastWave bi...@fastwave.com wrote (in
f6760896d8b96a499c62ed44754e910d92b...@hades.edd.com) about 'Safety
EMC - which 1st?' on Mon, 29 Mar 2004:
Certainly we would all prefer that our company's products be designed for
initial/immediate compliance, that we have multiple
Reasonable approach, with one proviso. EMC tests generally are less likely
to break the EUT than safety tests. So if the number of prototypes is
extremely limited and repairs are difficult, then EMC testing first may be
appropriate.
-- John McBain
johnmcb...@ieee.org
.
From: FastWave
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