Raymond,
I can confirm that such a 'memo' was issued, since I recall
discussing it with a colleague in a UK notified body at the time
(circa 1994). As I recall, it resulted from a meeting of whatever
forum represents LVD Notified Bodies in the UK shortly after the
document declaring an
Koh ,
EN60335-1 is not the appropriate standard for your purposes, and I'd
be very suspicious of the supplier who claims it is.
There is no such standard as EN60335-2-207.
IEC742/EN60742 is definitely not the same as EN60335. EN60742 was the
standard for plug-top (and other) transformers
Hello Friends,
We are getting into faster interconnects that can be affected by the CDNs
called out by EN 61000-4-6.
Has anyone tested a system consisting of an EUT connected to various
peripherals by USB, Firewire, 10 Base T or other bus configurations
considered high speed today? It seems
Is there a document specifying connector types and pinouts for E1
connections in Europe. Thanks in advance
Jack
___
Jack Murphy, Compliance Engineer
Quantum Bridge, One High St, N. Andover, MA 01845
tel-978 688-9100x555, fax-978 688-1363
Hello Raymond
I do not have access to the memo but I can certainly assure
you that it is the case. I have just measured the voltage as I sit
here and it is 242V. The nominal change was all to do with
harmonisation within the European union. The old supply
regulations allowed the public supply to
RadiSys currently has this posting and will likely have others in the next
6 months for compliance engineers and technicians. If interested, please
forward material to the address below.
-
Compliance Technician
RadiSys Corporation is currently seeking qualified applicants for a
compliance
What safety lesson we may learn from Concord crash?
There are lot of Safety standards in Electronic and Electrical
industries. If we strictly follow them we can avoid fatal accidents.
True.
Because, the standards specify safeguards
for KNOWN failures that lead to injury.
Is
Inter-Tel Inc. is looking for a qualified Regulatory Compliance Engineer. This
individual will be responsible for the Safety, EMC and Telecom Compliance for
PBX and Peripheral products. Products must comply with US, EU, Mexican and
Japanese requirements. Familiarity with these regulations is
Dear Koh,
The IEC 335-1 is the Standard of Household and Similiar
Appliances, General Requirements. The IEC 742 pertains to Isolating
transformers and Safety isolating transformers requirements. Both of these
standards have equivalent EN standards which are EN 60335-1, and
EN
Richard,
I field evaluated many conveyor systems in warehouses during my tenure at
UL. The guiding principle was always what the local AHJ asked for. Usually
a don't ask don't tell policy was in place. i.e. these systems are installed
after electrical inspections take place. So they do not call
Dear EMC-PSTC,
I'm posting this message again. (had posted to wrong address).
My company is currently designing a speaker system meant for ITE (that
is PC) connection.
The speaker requires external supply which the hardware team is looking
into using a AC/AC adaptor instead of AC/DC adaptor.
Hi Doug,
Yes, I have tried a similar approach based on an article a few years back that
used two HP 11940 probes mounted on a wooden jig. Maybe someone else on the
list can remember who the author was. It worked quite well.
Best regards,
Brent DeWitt
Douglas C. Smith d...@dsmith.org
Dear EMC-PSTC,
My company is currently designing a speaker system meant for ITE (that
is PC) connection.
The speaker requires external supply which the hardware team is looking
into using a AC/AC adaptor instead of AC/DC adaptor.
This AC/AC adaptor which steps down the 230Vac or 110Vac to the
Spec on mains is 230 +/- 6% so as 240 falls within that range, then that is
where the reference regard the UK staying at 240Vac came from.
We used to see voltages several % above 240Vac in the past. In my
particular area they used to stay spot on 240V most of the time. I note
however that in
My company has contracted for a motorized conveyer belt to be built. We will
be reselling the device into light industrial locations in the USA such as
warehouses. We requested that the equipment be Listed, but the contractor
says they have been selling these types of assemblies into this type of
Please contact Stephen Anderson if interested. This is all the information
I have but I am sure that Stephen would be willing to answer any questions
you may have.
We have a Thermotron S-Series, 1993 Model S-4S-SL Temperature Test
Chamber; range and specifications as detailed:
- interior
It was agreed a few years ago, by the European community members, that mains
voltages should be harmonised to 230V. At that time the UK was 240V nominal
and the rest of Europe 220V. Of course it isn't that easy to change a
country's mains voltage overnight so a compromise was made. The UK
The question was Do we really have to pay so high price to learn the lesson?
My response is in two parts.
The first one is, as I assume you believe since you ask the question in the
context you did, no -- not really.
The second one is yes, look at history.
I was in the US Air Force for 23 year,
Anyone can make their own IEC 60950 report form. This is simply a list of
every paragraph number in the standard, with a few words describing the test,
the results, and whether the unit passed or not.
However, it has become common for many Certification Bodies to use a form
generated by FIMKO
A few years ago, BEAMA or other similar body has issued a memo to public
laboratories about testing voltage for products selling in the U.K. The memo
says the U.K. mains is still 240Vac although the rated voltage is agreed to be
230Vac and the products have to be taken care the safety at
I have successfully used small loops for performing shielding
effectiveness measurements. They are ideal to locate weak spots or points
in a seam or isolate the leakage from aperture areas. We then compared
these readings to a final shielding effectiveness measurement for the entire
chassis and
I have been using plane shielded loops for over 15 years. Small magnetic
loops allow localizing defects to small areas and use of small samples. I
don't claim objective figures, but by comparing the material under test to
a known good shield (i.e.: galvanized iron sheet) and to air, one gets a
Hi All,
Shielding effectiveness is normally measured using plane
waves (relatively far from the source). This method of
measurement for shielding effectivenes does not always
correspond to the way a shielding material is used. It is
especially true when shielding material is incorporated
into
Hello Xing Weibing,
I believe that the CB Test Reports are protected by copyright. You can
purchase them (including the 950 report and amendments 1-4) from the CB
Scheme website at www.cbscheme.org .
Regards, Art Michael
* * * * * * * * * * * * * * * * * * * * * *
Hi;
I am looking for a complete set of CTR test equipment that can perform CTR 3,
CTR 12, CTR13, and CTR 21. Can somebody tell me where I can buy one? Thank you
in advance.
Best Regards;
John Chan
Dear sirs and Colleagues:
Our client request iec950 test report (including a1+a2+a3+a4), can you
provide me a copy of cb test report form of
iec950(including a1+a2+a3+a4)
Thank you in advance
My e-mail: xin...@cesi.ac.cn
Xing weibing
BTIEP
2000-08-01
Hi,
What safety lesson we may learn from Concord crash?
When having read recent reports on Concord crash the question occurred.
-
http://www.washingtonpost.com/wp-dyn/articles/A2191-2000Jul29.html
reads
A preliminary report on Tuesday's crash is due to be published at the end of
August,
27 matches
Mail list logo
