Fellow travelers,
I'm pleased to see the explanations put forward on this discussion
thread.
It all fits with my own issue of measuring Touch Current leaking to
ground which has grown with the advent of SMPS.
If you want to see a collexion of TC waveforms that I've collected
SMPS CM emissions
Consider a spherical SMPS ;))
For the analysis the AC rectifier is not relevant.
Basically a SMPS power supply is
a switch connected between phases with
a coil before it and a rectifier C
combination behind it. All other
topologies are variations on the theme.
Like this
PLUS
BULGIN javascript:displayObject('MfrHa
dler',%20'1442',%20'61070571',%20'0'); PX0675/PC
javascript:displayObject('MfrPartHandler',%20'1483',%20'65052745',%20'0');
BULGIN javascript:displayObject('MfrHa
dler',%20'1442',%20'61070571',%20'0'); PX0783/15/28
In message f49bf8e684bc6c4188d1d63513c4ca070658d...@sparrow.dolby.net,
dated Thu, 11 Dec 2008, James, Chris c...@dolby.co.uk writes:
BULGIN PX0675/PC
BULGIN PX0783/15/28
SCHURTER 6600.4115
SWITCHCRAFT EAC-305
Those are not URLs but javascript links. How can one
No one said they were urls - they are Mfrs and MPNs which I just whipped out
our parts database.
If the site supported attachments I'd have included pdfs
It does not take much with google to find the website and part concerned
Try googlin' BULGIN PX0675/PC - you'll find it 4th hit
Anyone receiving my original msg in html rather than text format will see Mfr
and MPN text which have embedded hyperlink javascript links.
The intent was just to supply Mfr and MPN text... the hyperlinks won't work
for you.
From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf
Chris,
I've built several CDN's. Repaired both CDN's and LISN's. Never messed with
building an EM clamp. Too much hassle IMO.
As far as calibration, I try to calibrate as much as is practical in house.
All the LISN's, ISN's, CDN's, cable loss, amplifier performance, etc etc .
But in
James,
Thanks for the reply. What I am looking for is a small lower current outlet
connector. I’m very familiar with these standard 10A appliance outlet
connector but this is way too big. I’m thinking someone like the 2.5A
shaver connector but in an outlet instead of an inlet.
Thanks again,
Group,
When producing EC Declarations of Conformity, it is not usual to include a
statement of the 'built standard' of the equipment as type tested. Indeed this
does not appear to be a requirement listed by EN 17050, listing only the model
number as being required.
Obviously the 'built
Group,
Sorry, the subject of this question should have been as above ... (Oh, the
wonders of copy paste !)
Best Regards,
Dave Coleman AIIRSM
__
Group,
When producing EC Declarations of Conformity, it is not usual to include a
statement of the 'built standard' of the
I believe that you will also need your calibrating equipment traceable to a
National Standards group such as NIST in the US.
Bob Heller
3M EMC Laboratory, 76-1-01
St. Paul, MN 55107-1208
Tel: 651- 778-6336
Fax: 651-778-6252
==
Please can anyone advise me how to identify and obtain copies of the
standards which apply for fax machines in Russia?
Thanks and regards
Nick.
-
This message is from the IEEE Product Safety Engineering Society emc-pstc
discussion list. To post a message to the list, send your e-mail to
One other thing to add to this thread (as we just went through an audit) is
you will need to write a test procedure for the calibration (preferably with
pictures of the calibration setup).
Larry Stillings
From: rehel...@mmm.com [mailto:rehel...@mmm.com]
Sent: Thursday, December 11, 2008 10:45
Doug,
We had the exact same issue with our large chamber. The insurance company
knows little to nothing about chambers but what they do know is that your
employer wants them to pay for a new chamber if it is damaged in a fire which
would be in the millions of dollars so they will do
Larry,
For EMC calibrations done in house, I don't think you have to write a
procedure if the standard calls out the procedure.
Clearly if you are doing something unique, or a calibrating a unit which
does not have parameters covered in a standard you need a written
procedure.
With our
In message
0ed66cd2c9bd0a459d54fb9119a60567d06...@mailserver.lecotc.com, dated
Thu, 11 Dec 2008, Kunde, Brian brian_ku...@lecotc.com writes:
Thanks for the reply. What I am looking for is a small lower current
outlet connector. I?m very familiar with these standard 10A appliance
outlet
I’m not familiar with the term ‘built standard’ but I assume you are
referring to listing the EMC test standards and maybe levels tested in the
DOC. When it comes to the DOC I’m all in favor of including as much
information as possible. It helps out our marketing and sales as well as our
HI Larry,
was this really required, in 17025, or is your assessor/accrediting body
asking?
If you are following a standard calibration method, I'm not sure you are
REQUIRED for have a procedure.
That said,I believe strongly in writing detailed work instructions (
what we call them),
In message
of955c9238.a21e24d2-on8025751c.0050d01f-8025751c.00526...@selex-comms.co
m, dated Thu, 11 Dec 2008, david.cole...@selex-comms.com writes:
What arguments does/has anyone used to convince senior management (who
are requiring 'built standard' info to be included on the DoC), that
In message p0624080ec566e6956280@[192.168.1.60], dated Thu, 11 Dec
2008, Nick Williams nick.willi...@conformance.co.uk writes:
Please can anyone advise me how to identify and obtain copies of the
standards which apply for fax machines in Russia?
What was Gossstandart now lives on the web at:
Thanks to All for the information. It was most helpful.
From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of John Woodgate
Sent: Thursday, December 11, 2008 11:42 AM
To: emc-p...@ieee.org
Subject: Re: Outlet Connector 250VAC 2.5 amps
In message
You will also require a calibration measurement uncertainty estimate to
comply with ISO 17025 and I would recommend a calibration report (test
report).
Jim
__
James L. Knighten, Ph.D.
EMC Engineer
Teradata Corporation
17095 Via Del Campo
San Diego, CA 92127
858-485-2537
Are there any applicable compliance standards for Wimax, specifically focused
on Electromagnetic Compatibility for the EMC and RTTE Directives? I don’t
recall seeing anything that was harmonized but, are there publications from
work groups or technical groups that would be available?
Steve
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