-Original Message-
From: Rich Nute [mailto:ri...@sdd.hp.com]
Sent: Friday, January 19, 2001 11:19 AM
To: paul_oshaughne...@affymetrix.com
Cc: emc-p...@ieee.org
Subject: Re: Color or marking of buttons - safety question
Hi Paul:
However, to release the interlock, a PAUSE or
I would say that unless isolation from the public power supply is somehow
guaranteed as part of your installation procedures, you must assume that
your equipment comes under -3-2 and -3-3. Basically, if it's got a plug and
pulls less than 16 Amps at European mains voltages, you need to comply.
Gary,
If this equipment has a chassis bonding connection like you find in
telephone line up equipment, would then it fall under the class B pluggable.
I can still remove power cords, but have a chassis to frame bonding wire in
parallel to that. (Yes, I know most of that stuff is DC but there is
Jim,
The details and logistics of the FCC continuing compliance
program and the next step in de-regulation process can be viewed
or downloaded at:
http://www.conformity-update.com/fcc-part68-010112.doc
Regards,
Bandele
Jetstream Communications, Inc.
badep...@jetstream.com
-Original
The only company I know selling these special CDN is RodheSchwarz
http://www.rsd.de http://www.rsd.de
Best Regards
Lothar Schmidt
Technical Manager EMC/Bluetooth,
BQB, Competent Body
Cetecom Inc.
411 Dixon Landing Road
Milpitas, CA 95035
Phone: +1 (408) 586 6214
Fax: +1 (408) 586
In Europe the power distribution is done i=on different levels or grids.
The industrial environment is normally supplied with a 20 KV or similar high
voltage line an has his own transformer for 240/415 V
The residential and commercial environment is supplied via 240/415 V grid.
Best Regards
Hi Paul:
However, to release the interlock, a PAUSE or STOP button is pressed which
allows the instrument to stop in an orderly way and then release the cover.
Best as I can tell, a red pushbutton, with PAUSE or STOP legend and the ! in
a triangle (to refer the operator back
Joe,
you can found a CDN-T2 and T4 at Rohde Schwarz. You can use these CDNs also
to measure noise instead inject noise.
Haefely sells these type of CDNs too, but their CDNs are made by Lüthi.
Sérgio Rocha Loures
Siemens Ltda. - Brazil
ICN FL QEL
Tel: +55 41 341-5755
Fax: +55 41 341-5058
We have an instrument with moving parts protected by an interlocked cover.
The moving parts are accessible to the operator once the cover is opened.
However, to release the interlock, a PAUSE or STOP button is pressed which
allows the instrument to stop in an orderly way and then release the
Chris,
Sorry to keep -3-2 in the conversation, but hopefully you'll get the point.
I still have questions pertaining to it, so I've couched my answer in this
context.
I'll take a swing at this with the caveat that I don't pretend to be the
world's expert on this subject, but I'm running into
Hi! Michael:
Thank you for your suggestion. It seems that copper fill that you and
several other guys mentioned does not applied in my board. For external
layers, you can implement the copper ring or, as other people suggested,
using copper fill but grounded it. In my case, I have a high-layer
Hi Joe
Schaffner makes a wide range of CDN's including a CDN-T2. I do not know if
it' s also useable for EN 55024 but it does have a higher frequency
performance IE to 230MHz.
I would suggest you contact John Parnell at Schaffner 800-367-5566, or
e-mail him at jparn...@schaffner.com
Tony
Thanks Allen,
I would agree with the pluggable A and B issue. Because of the
concern with the leakage I indeed read this section as I knew there was some
sort of exception. In reading it, I'm out of the office and doing this from
very recent memory, the information you present is
Capacitively. If your floating structure ends up being resonate at a
fundamental or one of the harmonics it will become a very effective
unintentional radiator.
Dan
-Original Message-
From: David Gelfand [mailto:gelf...@memotec.com]
Sent: Thursday, January 18, 2001 2:34 PM
To:
John, thanks for the reply. I think you pointed out a mistake in my
original question. I should not have used side when talking about
transformers. I know that we don't have products running from the high or
medium voltage sides of the transformers. I'll re-state the question
using the word
John, Ron,
Thank you very much for clearing this up. I, the safety lab and CSA rep all
missed that my equipment was not pluggable Class B. I am now in the dubious
position of having to tell them that my equipment does not conform!
Best regards,
David.
- Original Message -
From:
I don't think you need to know anything about MV (medium voltage) and HV
(high voltage) supplies. Low Voltage (LV) is less than 1000 VAC. That is
where virtually all equipment will be - your equipment and the equipment
that is being protected from your product's emissions. If both are sourced
by
Jim,
Under the latest Part 68 Rules, I believe you no longer submit an
application to
the FCC for Part 68 registration.
As far as I know, the latest FCC Part 68 Rule gives manufacturers the
CHOICE to choose a designated TCB or the FCC to have its products approved.
John Radomski
Guys,
Before I even ask this question, I want to ask that we don't get back into
the discussion of whether EN 61000-3-2 and EN 61000-3-3 applies or not.
What I want to ask about is a specific term.
I was reading an article in conformity-update at the following URL:
To all,
In addition to John's excellent comments, I must add that the equipment must be
classed as
stationary (Table 17) according to the definitions found in 1.2.3.3 and 1.2.3.1
of IEC60950 or any
of its clones. Also, the only description of allowable leakage current
exceeding the 3.5 mA
Dear Listmembers:
I would like to purchase a CDN (coupling-decoupling network) for performing
the conducted RF immunity test called out in EN 55024. The specific CDN that
I am interested in is the CDN-T2 for 2-wire unshielded twisted pair, as
shown in Figure D.4 of 61000-4-6.
Can any of you
Under the latest Part 68 Rules, I believe you no longer submit an application to
the FCC for Part 68 registration. This initial registration process is now
handled in the private sector by Technical Conformance Bodies, or TCB's, that
have been approved for that purpose. The manufacturer can do
Tania-
That is not true- Telcordia can do all of the tests in house including the
airborne contaminants that you speak of and has been doing them for a long time.
Correct me if I'm wrong though, but I beleive the original question here was
whether there were any labs in Europe or Asia that
Hi folks
I (and I believe, a number of other people) disagree with the last sentence
of David's message - in so far as it is NOT merely a question of having a
longer grounding pin.
IEC and EN60950 - and I think also the common UL/CSA standard (but not
having seen the latest edition) - allow
Dear Members,
For immunity tests in accordance with EN 55024 : 1998, 'Telecommunications
terminal equipment' (analogue and digital), have particulat test conditions
in Annex A of the standard. It is highlighted in the standard (section 7.2)
that the criteria given in Annex takes precedence over
Hi Captain,
You will be able to when we finally document what we're up to. There is a
potential patent in the way we do the testing.
The bad side is not that we can't disclose it yet, but that we're not in a
position to generate revenue from it...;-
Maybe by the time we meet in CA this
Hello Chris, Naftali and All,
Do not get traped! There are no test labs in Israel who can perform full
compliance to GR-1089 Core! Some labs can do partial testing but not full
testing.
Regards
-Original Message-
From: Naftali Shani [mailto:nsh...@catena.com]
Sent: Wednesday, January
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