In message p06240801c79b7539d046@[192.168.0.45], dated Fri, 12 Feb
2010, Nick Williams nick.willi...@conformance.co.uk writes:
Do you know if BS will publish the standard (presumably as a BS IEC if
there is to be no EN version at this stage)?
I know of no plans to do so. I think it is very
John,
Do you know if BS will publish the standard (presumably as a BS IEC
if there is to be no EN version at this stage)?
If they are not going to publish it then I will buy a copy from IEC
but if they are then I will wait until it appears in the BS Online
service.
Nick.
At 19:21 +
In message 9360F1D2B3C045618D6F94F546142B75@OwnerPC, dated Thu, 11 Feb
2010, Ron Pickard, RPQ rpick...@rpqconsulting.com writes:
The IEC has just announced the publication (21-Jan-2010) of the safety
standard IEC 62368-1:2010 ed1.0 (now encompassing audio/video,
information and communication
I have used the tester and find it takes a pretty sharp edge to fail. The
primary benefit of the tester is that it settles the argument. If an edge
passes the test UL will accept it. If it fails you had better address the
issue. Internally, I have judged some edges a hazard and insisted on
Hello,
I have seen two approaches to Ethernet magnetics design for functionality and
EMC. In one approach the magnetics (and terminations) are integrated into the
connector. A different
approach is to use external magnetics terminations. I have also seen
shielded and unshielded
connectors.
Hi Ian
Assuming that you are mainly working from 30 MHz to 1 GHz the shielded tent
material will give you reasonable performance, more than 30 dB.
The big issue will be how you get cables in and out. The shielding
effectiveness will easily fall to 20 dB or even 10 dB. Of course, any shielded
I think the design and use of the tool is well thought out. The only
shortcomings with the design is that it can't be used to test short sharp
surfaces (particularly points) and that the 'tape heads' sometimes rotate and
won't stay in contact with the surface to be tested. I just think the test
Dear colleagues.
Does anyone have experience of using a Faraday/rfi screening tent for EMC
emission measurements from products 1.5m x 1m x 0.5m?
In particular; how effective are they in reducing external ambient emissions
and are internal reflections from the EUT a problem.
How do
Peter and Forum,
This discussion brings back some old memories for me. I worked at UL back in
the 1970’s and shared a cubicle at that time with the engineer that developed
the sharp edge tester. Peter’s comments pretty well summarizes the reasoning
behind the development of the tester as a
Hi,
as I know in Europe the CENELEC voting for prEN 62368 was negative! Therefore
we have the situation that for the Low Voltage Directive only EN 60950-1 and
EN 60065 gives a “presumption of conformity” regarding CE marking. CENELEC
is waiting for the 2nd edition of IEC 62368!
On the IEC
Sudhakar,
Many UL Standards call out an edge, projection, or corner of an enclosure,
opening, frame, guard, knob, handle, or the like, shall be smooth, well
rounded, and not sufficiently sharp to constitute a hazard.” Manufacturers had
no way to determine what constitutes a smooth, well
Hi Rich and the group,
A friend, a real rocket scientist, had someone he knows experience the
unintended acceleration in a Toyota. He had the presence of mind to put
his foot under the accelerator pedal and pull up hard. The car continued
to accelerate. Sounds like software to me.
There is
To all,
The IEC has just announced the publication (21-Jan-2010) of the safety
standard IEC 62368-1:2010 ed1.0 (now encompassing audio/video, information and
communication technology equipment), that’s intended to evolutionize safety
analysis/evaluations thru HBSE. Now that this IEC base
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