It is my understanding that the European Commission has stated that a
manufacturer has the freedom to determine the acceptability of components
used in CE marked products. (Or words to that effect.) I would conclude
that this would remove the need for using European agency approved
I will paraphrase the situation as stated in the Low Voltage Directive,
73/23/EEC, as amended by 93/68/EEC (CE Marking Directive) ;
CE marking attests to the conformity (of the electrical equipment) to the
provisions of this Directive.
The Member States shall take all appropriate measures to
Hello All,
We are looking for a not common kind of a very thin metallic sheet with a
special shape to be used inside the chassis of amplifiers, over the
thin-walls which separate the different PCB sections. Thus, we try to
achieve a perfect electric contact between the thin metallic sheet and
I am testing an induction heater to FCC Part 18 conducted emissions. The
frequency range required is 10 KHz to 30 MHz. The heater is essentially a
tank circuit tuned at 25 KHz. There are very strong emissions at 25 KHz and
the next 5 harmonics. Are there any good techniques (design or otherwise)
Hi Keith,
Something happened to your email note to emc-pstc: I can't reply to you
personally.
Leubbers published some work on using FDTD for monopoles on wire boxes.
I don't have the references at hand, but I can look them up and forward
them to you, if you like.
Regards,
Kevin
--
One thing to keep in mind is that if possible, it is certainly preferable to
use agency approved components...this will greatly reduce troubles associated
with making sure the component manufacturer does not make any design or
manufacturing changes that may affect the validity of your test
Hi Roger,
Just a reminder.
3/1/98 to 7/1/01 is the transition period of time for EN50082-1:1997 to
replace EN50082-1:1992 and others.
Best Regards,
Barry Ma
-
Original Text
From: roger...@astec-asia.com, on 9/9/98 2:59 PM:
To:
If I want to certify my product to meet the
You're correct that no governmental organization require approved
components. If they are in safety critical areas they will be
investigated along with the rest of the product to insure that they can
meet the requirements in the safety standards.
Transformers are, or used, to be a good example of
Kevin,
Can you assume the signal being measured is vertically polarized, or that the
desired
signal needs to be vertical for the application? If so, I would suggest you
build
discone antennas and calibrate them for the two bands. The antennas should be
relatively small, have an
Roger,
We simply do the tests to the newer (EN61000 series) standards, and then
write a deviation in the test report stating that we deviated from the
standard to use the newer test procedures, in an effort to maintain
continued compliance in the future. Just make sure you cover the
A little clarification by way of example,
Traditionally if we build a power conversion product for North America, we
provide a UL/CSA approved circuit breaker as a part of the design. However
if we subsequently apply for certificates from an agency in Europe they will
insist upon a European
If I want to certify my product to meet the EN50082-1(1992)
requirements, should I call for the IEC801 tests or the IEC1000-4
series? Is there any difference between them apart from the IEC801-3
and the IEC1000-4-3?
Thanks and Regards
Roger Hsu
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