I may have not phrased my reply correctly. I definitely would discharge to
conductive surfaces, but I would do so with the contact discharge mode. The
contact mode is more repeatable and has a faster rise time than air discharge.
I only meant to say that after doing contact discharge evaluation
Hi,
I would like to get your opinion on the test conditions applicable for
sections 2.7 and 5.3, primarily for short circuit test.
Let's assume it is direct plug-in equipment/AC-DC power adapter. What will be
most appropriate power source requirement for performing s.c. test for UK
ring? I can
In Japan, the FM Broadcast band is 76MHz to 90MHz according to a number of
sources as well as an FM receiver I have that when set up for Japan, starts
scanning at 76MHz...
Best Regards,
Mike Hopkins
EM TEST USA
m.hopk...@emtest.com
From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf O
Brent: I would have to ask on what basis you would exclude conductive
surfaces? My experience has been grounding defects were exposed by conductive
discharge and as such it was a very valuable engineering tool.
Fred Townsend
Brent DeWitt wrote:
Ian,
I have always been of the
Ian,
I have always been of the opinion that it is not required to do air discharge
to conductive surfaces. That said, my current employer has written internal
standards to include air discharge to conductive surfaces. I'll be interested
to see where this thread leads.
Brent DeWitt
Does anyone have spectrum assignment frequencies for India?
Although 433 MHz band is available, but it is multipurpose.
Are any other frequency bands acceptable (< 10 mW)?
_Honeywell
David W. Sterner
Quality Assurance
Hi experts,
A question about the IEC 61010-1 requirements to the bottom (and sides) of a
device cases fire enclosure.
With regards to the bottom there are well explained rules for the design of
the bottom in 9.2.1 Constructional Requirements.
I have a device with completely flat bottom without
The fun part of air discharges to insulating surfaces is that things are not
always what they appear to be. The air discharge can find a way around lots
of apparent insulation to find the nearest conductor and insert all sorts of
havoc in the system.
- Bill
Indecision may or may not be the proble
Hi All,
The committee chair for that group would be Bernd Jaekel of Seimens. I've
copied him on your question.
Regards, Ken
Wyatt Technical Services, LLC
56 Aspen Dr.
Woodland Park, CO 80863
Email: k...@emc-seminars.com
Web: www.emc-seminars.com
LinkedIn: http://www.linkedin.com/in/kennethwyat
Ian,
Is it necessary to apply both air & contact discharges to equipment?
I read it as: the contact discharge is applied to the conductive surface and
the air discharge is applied to non-conductive surfaces.
I also know that I have yet to test air discharge without inadvertently
discharging to
In message
<2AA8A4298DECF8469C66C8F3A2B95892012110BA@GB02QEX01PEDV27.rmhost1.local>,
dated Mon, 18 May 2009, "Gordon,Ian"
writes:
>I couldn't work out how to contact the IEC committee so sent a general
>enquiry. I did the same with BSI. If someone knows how to contact the
>committees directl
In message <4a114fa4.2020...@meadtest.com>, dated Mon, 18 May 2009, MIke
Hurley writes:
>I agree it probably is wrong, but it was the same in the earlier 1997
>edition! I guess this is one for John to pass on to the relevant
>committee
If you mean me, I am not specially in contact with the
Mike (& John)
I couldn't work out how to contact the IEC committee so sent a general
enquiry. I did the same with BSI. If someone knows how to contact the
committees directly please let me know.
Ian Gordon
From: MIke Hurley [mailto:mikehur...@meadtest.com]
Ian,
I agree it probably is wrong, but it was the same in the earlier 1997 edition!
I guess this is one for John to pass on to the relevant committee
Mike Hurley
Gordon,Ian wrote:
All
There seems to be a typographical error in Table 3 of the above standard
where the l
Ian,
Have you checked the relevant product standard for your application? 61000
series is really only a description of test setup and methodology. The
product standard would have the actual specifications. For example, EN55024
for ITE
Contact discharge is usually the preferred method of dischar
In message
<2AA8A4298DECF8469C66C8F3A2B9589201211031@GB02QEX01PEDV27.rmhost1.local>,
dated Mon, 18 May 2009, "Gordon,Ian"
writes:
>Is it necessary to apply both air & contact discharges to equipment
>given the following?:
>
>Looking at 61000-4-2 I believe the critical part is the first paragr
All
There seems to be a typographical error in Table 3 of the above standard
where the levels specified for ESD testing in controlled environments
are given as 4kV/8kV (air/contact). However the level for the same test
given in Table 1 which refers to Basic Immunity Requirements is only
4kV/4kV (ai
All
Is it necessary to apply both air & contact discharges to equipment
given the following?:
Looking at 61000-4-2 I believe the critical part is the first paragraph
of section 7 ".Test set-up".
.application of discharges to the EUT in the following manner:
a) contact discharge to the condu
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