dont believe the catalogue
andy
-Original Message-
From: Colgan, Chris [mailto:chris.col...@tagmclarenaudio.com]
Sent: 09 July 1999 09:44
To: 'Richard Cass'; 'emc-p...@majordomo.ieee.org'
Subject: RE: CISPR 22 equal to EN55022?
Hi Rich
According the my British Standards catalogue, EN
Hi Rich
According the my British Standards catalogue, EN 55022:1994 and CISPR
22:1993 are technically identical though some of the wording or presentation
may differ.
The same applies to EN55022:1998 and CISPR 22:1997.
Hope this helps, I'll send you the bill :)
Chris Colgan
EMC Safety
TAG
Mirko.
All resistibility tests were removed from the EN as resistibility does not
come under the EMC Directive.
You have to buy the EN to see it.
Regards.Andy
-Original Message-
From: Matejic, Mirko [mailto:mmate...@foxboro.com]
Sent: 08 July 1999 22:34
To: 'Richard Cass';
IMHO,
As I understand it the latest Amendments of CISPR22 are not necessarily
in EN55022. Indeed they may be modified or rejected by the EU and so
they may NOT be the same.
Thank you
Charles Grasso
StorageTek
2270 Sth 88th Street
Louisville CO 80027
Tel: (303)673-2908
Fax(303)661-7115
Posted for ANDREW ROBERTS arobe...@newbridge.com:
From: ANDREW ROBERTS arobe...@newbridge.com
Subject: EMC Engineers
Date: Thu, 08 Jul 1999 16:34:07 -0400
To: TREG t...@world.std.com, EMC-PSTC emc-p...@ieee.org, NEBS
n...@world.std.com
Company:
A good example would be a transformer. The current output can be limited by
the resistance of the winding as well as the mutual inductance between the
windings. Of course, increasing the resistance of the windings to limit the
output may cause temperature problems. But any competent transformer
Good Morning,
I am dealing with two video formats for video cameras and monitors, Pal
NTSC.
Pal is primarily used throughout Europe and NTSC is used in USA, Canada,
Mexico and Japan.
Does anyone know of any other countries that may use NTSC ?
Thanks,
George
-
This message is coming
Hello George,
An Inherently Limited power source is one in which the impedance of the
source, typically a transformers' primary or secondary, is such that the
available output is limited within the constraints of low energy as
defined by a standard. UL 1585, for example, describes the
Hello all,
The standard that I'm working with states under Power Limited Circuits that:
an Inherently Limited power source does not require overcurrent
protection, while a Not Inherently Limited power source does require it.
Could someone give me an explanation of what makes a power source
Is this a joke?
-Original Message-
From: b...@namg.us.anritsu.com [mailto:b...@namg.us.anritsu.com]
Sent: Wednesday, December 31, 1969 6:00 PM
To: emc-p...@ieee.org
Subject: EMC Detective and Flushing Toilet
Greeting to the group,
EMC engineers in a PC maker received a customer's
Off the top of my head I guess I would have to assume that it has to do with
power delivery rather than a data line spike. A spike into one of the data
I/O would be more likely disrupt the current application and maybe cause a
program lock-up but should cause a re-boot.
Flushing water may create
Barry:
I would be tempted to say that the reboot is actually an undocumented feature
in which bad data is automatically flushed from the system.
But this actually sounds like a clear case of hydraulic hammer. In typical
residential construction, all utilities, including water and electric
Hi George:
Pal is primarily used throughout Europe and NTSC is used in USA, Canada,
Mexico and Japan.
Does anyone know of any other countries that may use NTSC ?
Check out the following web sites:
http://www.bbc.co.uk/aberdeen/eng_info/world_tv_standards.shtml
Barry -
I know of only two reasons and one wild speculation on why flushing a toilet
would cause the computer to reboot -
1. See if they have installed an automatic flusher on their toilet and
if it is on the same circuit as the PC. If this is the case then a line
conditioner between the
Try http://www.cpsc.gov/ http://www.cpsc.gov/ for US legal requirements
concerning recall
--
From: Ling, Philip [SMTP:pl...@newport.com]
Sent: Friday, July 09, 1999 12:03 PM
To: emc-p...@majordomo.ieee.org
Subject: Product traceability for
In a message dated 7/7/99, Susan Beard writes:
Anyone know of any connectors with 0.1 spacings that survive a 2000 volt
rms hipot requirement?
Susan:
Don't forget that for most connectors, the minimum spacing actually occurs on
the printed circuit board, at the land areas around the pins.
Posted for Gorodetsky, Vitaly vgorodet...@canoga.com:
While performing the Bellcore Needle Flame Test, a break of electrolytic
capasitors' hermeticity may occur with potential release of hazardous
substances . Does anyone have an experience in preventing this or any idea
how
George,
For a list of which countries use what format, check out the following site:
http://kropla.com/tv.htm
Ali
-Original Message-
From: sparaci...@andovercontrols.com
[mailto:sparaci...@andovercontrols.com]
Sent: Friday, July 09, 1999 8:38 AM
To: emc-p...@ieee.org
Subject: Video
I'm hardly the EMC attorney, but I believe the way it works
is the technical body generates CISPR 22, and the lawyers
adopt and publish it as EN55022
Mark
-Original Message-
From: Matejic, Mirko [mailto:mmate...@foxboro.com]
Sent: Thursday, July 08, 1999 2:34 PM
To: 'Richard Cass';
Barry,
Wild stab in the dark here. The PC is grounded to the plumbing. The
Plumbing is a mixture of grounded and ungrounded parts. When the water
flowing in the plumbing from the toilet flush connects two dissimilar
grounded parts of the plumbing, one is noisy and causes the PC to reboot.
To
Let's see here. My mommy sent me to college so that I could play with
tinfoil, and theorize about toilets! Heavy sigh!.
I think we have missed the obvious point here. This whole things boils down
to a computer dump! If you quit feeding it the need for the dump should go
away.
Sorry about
I post this interesting response offered by my supervisor.
Jim Knighten
Dr. Jim Knightene-mail: jim.knigh...@sandiegoca.ncr.com
mailto:jim.knigh...@sandiego.ncr.com
Senior Consulting Engineer
NCR
17095 Via del Campo
San
You didn't specify if this is for XMIT/RCV. Nor to what frequency the
pass band must be flat. If receive, try minicircuits. They will be
least expensive. If you need something to many GHz, you will have to go
with an outfit like KL, Trilithic, or others similar.
-Original Message-
Couple of week age I did see someone mention regarding the Product
Traceability
for recall. I need some help if anybody have the information please let me
know.
My question is :
What standards or report do we maintain regarding product traceability as
required
by law or applicable government
Greeting to the group,
EMC engineers in a PC maker received a customer's complains transferred
from technical support group that every time he flushes toilet his PC
always reboots. Assuming you were one of EMC engineers, please participate
the discussion and try to answer following
A contact was made with DG III concerning the RTTE Directive. The questions
and the reply are listed below. In reference to his last remark, why is
there now controversy over the definition of placing on the market after
the term was clearly defined by the Commission in two explanatory documents
There are a number of countries that use NTSC other than the ones you
mentioned, the most important of which is probably South Korea. In any
case, a complete list is available at http://kropla.com/tv.htm This list
has the country and whether it uses NTSC, PAL or SECAM.
Cal Whiteley
Patton
Bonjour de Montreal,
The IEEE EMC Society has an education manual that is available free at :
http://www.emcs.org/emcsedu.html
just click on
The IEEE EMC Education Manual is available here in PDF format (3.62 MB).
Good luck,
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