ingle 3-phase LISN.
BTW, there maybe confusion with the term "single-phase LISNs" here.
Is it LISNs commonly used for single-phase AC supply?
Or is it LISNs for an single power supplying conductor?
Regards,
Tom
-
This m
e.
Is it LISNs commonly used for single-phase AC supply?
Or is it LISNs for an single power supplying conductor?
Regards,
Tom
-
This message is from the IEEE Product Safety Engineering Society emc-pstc
discussion list. To post a message t
Tom,
Thank you very much for seconding Mike's comments.
How easy/difficult to have FCC add exempted devices? How and where to start?
Best regards,
Grace
2011/8/3 Thomas Cokenias t...@tncokenias.org
Hi Grace
I was working at the FCC lab at the time (Mike is just a kid
://www.emc2004.org/
Tom,
I have had experience submitting data taken at a closer distance than
specified, although in this case it was 120kHz RF-ID systems. At close
distances the FCC allows 1/d^2, but the reality is closer to 1/d^3 at 3,
10
and 30 meters. I simply took data at 3, 10 and 30 meters
/
--
Tom,
I am assuming your device operates at 13.56 MHz. I ran a NEC-2
simulation over average GND and the reduction in field strength is:
DX 1/d NEC
30 m0 dB0 dB
30020 30
1600 35 58
So, according to NEC-2, the field strength
://www.emc2004.org/
--
Tom,
I am assuming your device operates at 13.56 MHz. I ran a NEC-2
simulation over average GND and the reduction in field strength is:
DX 1/d NEC
30 m0 dB0 dB
30020 30
1600 35 58
So, according
-constant approximating that of an average detector.
Ralph McDiarmid, AScT
Compliance Engineering Group
Xantrex Technology Inc.
-Original Message-
From: owner-emc-p...@listserv.ieee.org
[mailto:owner-emc-p...@listserv.ieee.org] On Behalf Of Tom Cokenias
Sent: August 23, 2004 6
: owner-emc-p...@listserv.ieee.org
[mailto:owner-emc-p...@listserv.ieee.org] On Behalf Of Tom Cokenias
Sent: August 23, 2004 6:51 AM
To: Ridler, Samantha; 'EMC-PSTC@LISTSERV.IEEE.ORG'
Subject: Re: Average Detection
Hello Samantha,
For analyzers that do not incorporate an average
...@listserv.ieee.org
[mailto:owner-emc-p...@listserv.ieee.org] On Behalf Of Tom Cokenias
Sent: August 23, 2004 6:51 AM
To: Ridler, Samantha; 'EMC-PSTC@LISTSERV.IEEE.ORG'
Subject: Re: Average Detection
Hello Samantha,
For analyzers that do not incorporate an average detector,
the FCC
favorite Oregonian emergency
locator tv... :)
The TV That Sent Out a Cry for Help, via Satellite
By TOM ZELLER Jr.
Pizza ovens, jumbo score boards, Christmas lights and other
appliances have issued emergency distress signals and
brought search and rescue teams running.
http://www.nytimes.com/2004/11
,
-Original Message-
From: Peter Merguerian [mailto:pmerguer...@itl.co.il]
Sent: Friday, October 19, 2001 3:45 AM
To: 'Mark Haynes'; IEEE EMC-PSTC Discussion List (E-mail)
Cc: Peter Deneault (E-mail); Tom Brenner; Doug Harris
Subject: RE: Motor Drive Grounding Scheme
Mark,
If you think your product
correlate pretty well with
radiated emissions readings when using the relationship between E,
P, G, and d in the far field and solving for P.
best regards
Tom Cokenias
T.N. Cokenias Consulting
P.O. Box 1086
El Granada CA 94018
tel 650 726 1263
fax 650 726 1252
cell 650 302 0887
At 9:21 AM
these
standards relate/conflict (if they do at all)?
Thanks,
Nick
From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of Sykes,
William Thomas (Tom)
Sent: Wednesday, December 06, 2006 12:15 PM
To: Tarver, Peter; EMC-PSTC
Subject: RE: Illumination Intensity Safety
Peter:
Nick:
Following up
Hi Scott
What Michael said, yes.
best regards
Tom
On Feb 29, 2012, at 4:26 AM, Michael Derby wrote:
Hello,
Not quite Scott, I think what Thomas and Charlie were (correctly) saying,
was……
With harmonized and published standard, we do not need to use accredited
laboratory
.
Best regards,
Rich
541-633-7252
On 2/26/2013 6:37 AM, Ron Pickard RPQ wrote:
Hi Rich,
Thank you and Tom getting this out to us. After reviewing this document, I
noticed that it references IEC 62368 Edition 1. As this Edition 1 was
voted
down I believe by most NCBs causing Edition 2
). And me.
Best regards,
Rich
541-633-7252
On 2/26/2013 6:37 AM, Ron Pickard RPQ wrote:
Hi Rich,
Thank you and Tom getting this out to us. After reviewing this
document, I noticed that it references IEC 62368 Edition 1. As this
Edition 1 was
voted
down I believe by most NCBs causing Edition 2
meetings so as to minimize travel costs.
TC12 active members are from IBM (2), HP (1), and
Intel (1). And me.
Best regards,
Rich
541-633-7252
On 2/26/2013 6:37 AM, Ron Pickard RPQ wrote:
Hi Rich,
Thank you and Tom getting this out to us. After reviewing this document, I
noticed
Hello all,
I agree with Tom that it only applies to Class B computer peripherals.
However, I thought I'd share an interesting recent experience with you, for
your information.
I sent a KDB to the FCC about a boat (luxury yacht) that had a USB port on
the dashboard (I'm not sure
'; EMC-PSTC@LISTSERV.IEEE.ORG
Subject: RE: [PSES] Verification under FCC rules and our Digital Class A
product for industrial use only
Hello all,
I agree with Tom that it only applies to Class B computer peripherals.
However, I thought I'd share an interesting recent experience with you
-
1:30 PM
LUNCH
Lunchelon Speaker: Tom Wheeler, President
Cellular Telecommunications Industry Association
1:30 -
2:45 PM
CONCURRENT SESSIONS
equipment de-regulation issues, an Adobe Acrobat
file version of the docket is at
http://www.fcc.gov/Bureaus/Engineering_Technology/Orders/1998/fcc98338.pdf
Text and Wordperfect versions also available on FCC's home page in the
Headlines section.
Tom, thank you very much for sharing this with us
transmitters
Hello members,
Thanks all who responded.
I hope CISPR makes this topic clear in near future.
Regards,
Tom
--
Tomonori Sato <vef00...@nifty.com>
URL: http://t-sato.in.coocan.jp
On Sat, 22 Jul 2017 03:10:27 +0900,
"T.Sato" <vef00...@nifty.com> wrote:
>
members,
Thanks all who responded.
I hope CISPR makes this topic clear in near future.
Regards,
Tom
--
Tomonori Sato <vef00...@nifty.com>
URL: http://t-sato.in.coocan.jp
On Sat, 22 Jul 2017 03:10:27 +0900,
"T.Sato" <vef00...@nifty.com> wrote:
> Hello members,
>
>
If it is a Part 18 device the lab is probably misapplying FCC 15.31 (f)(2),
which gives a 40 dB/decade factor. Part 18 is 20 dB, unless multiple distances
are used as Tom pointed out below.
Thanks,
[ElementSignature]
[cid:image554720.jpg@6ED1BEFC.58F12BBE]
David Schaefer
Technical Manager
, 2023 at 11:17 AM
To: Ken Javor
Cc:
Subject: Re: [PSES] 6dB pad
Hi Ken and Tom
Thanks for your inputs. Yes, the 6 dB pad is at the receiver input, in addition
or not (depending on the signal level) to the built-in attenuator of the
receiver.
If the same 6dB pad is put at the antenna
Hi Ken and Tom
Thanks for your inputs. Yes, the 6 dB pad is at the receiver input, in
addition or not (depending on the signal level) to the built-in attenuator
of the receiver.
If the same 6dB pad is put at the antenna output instead of receiver input,
it's at the other end of the cable
Hi Tom -
Right - if the installer installs the product NOT according to directions,
then any interference is his problem. But if the installation is done
according to the manufacturer's instructions and causes interference, then
it is likely the manufacturer will bear some or all responsibility
, if the centrifuge is intended to
be used for in-vitro diagnostic applications.
Regards,
Tom
Tomonori Sato vef00...@nifty.ne.jp
URL: http://member.nifty.ne.jp/tsato/
This message is from the IEEE EMC Society Product Safety
Technical Committee emc-pstc discussion list.
Visit our web site
the technology. Anyone else
look at this system?
Tom Donnelly
From: Tsang Steven [mailto:emc...@hotmail.com]
Sent: Tuesday, January 27, 2004 11:41 PM
To: emc-p...@majordomo.ieee.org
Subject: OATS Measurement
Dear all,
I have a question regarding on OATS measurement (3m site, 30MHz to 1000MHz),
I
.
Yes, VCCI already adopted CISPR 22:2005.
However, at this time, in the Technical requirements V-3/2007.04 clause
1, they wrote:
Enforcement of upper limits of conducted disturbance at the
telecommunication
ports is under consideration.
Regards,
Tom
Tomonori Sato mailto:vef00
ports is under consideration.
Regards,
Tom
Tomonori Sato vef00...@nifty.ne.jp
URL: http://homepage3.nifty.com/tsato/
-
This message is from the IEEE Product Safety Engineering Society
emc-pstc discussion list.Website: http://www.ieee-pses.org/
To post a message to the list, send your
as
Benoit mentioned. Please note the different labeling requirements between
Class A and Class B equipment as Tom pointed out. An example is for the
information to the user as stated at FCC 15.105
(http://a257.g.akamaitech.net/7/257/242
/13nov20061500/edocket.access.gpo.gov/cfr_2006/octqtr/pdf
Chang's, Home Depot, Books-A-Million and more !!!
If you plan to attend the event but need some time to fill out the forms or
get company approval, please go ahead and send Tom Perry
thomas.a.pe...@nasa.gov an email with your intent to attend. He will hold a
spot for you until March 28th.
We
simply says that:
The specified distance is the distance between the horizontal
projection onto the groundplane of the closest periphery of the EUT
and the projection onto the groundplane of the center of the axis
of the elements of the receiving antenna.
in its clause 8.2.3?
Regards,
Tom
to fill out the forms or
get company approval, please go ahead and send Tom Perry
thomas.a.pe...@nasa.gov an email with your intent to attend. He will hold a
spot for you until March 28th.
We are pleased to officially announce the Huntsville IEEE EMC 2008 Event on
Tuesday, April 29th, 2008. Our
Grace,
As I remember, the appendix was in Docket 20780, the Report and Order that
originally adopted the FCC digital device rules, dated around September 1979.
I wouldn't worry about it too much...
best regards
Tom Cokenias
T.N. Cokenias Consulting
P.O. Box 1086
El Granada CA 94018
tel 650 726
Amen brother tell it!
Tom Cokenias
T.N. Cokenias Consulting
P.O. Box 1086
El Granada CA 94018
Tel 650 726-1263
Cell 650 302-0887
Sent from my iPhone
On May 18, 2010, at 7:19 PM, o. laney ola...@juno.com wrote:
Why do you assert that government users are not concerned? They are
very
Tom
http://www.interferencetechnology.com/markets/automotive/lead-news-
item/article/agencies-probe-link-between-gas-pedals-and-emi.html
-
This message is from the IEEE Product Safety Engineering Society emc-pstc
discussion list. To post a message to the list, send your e
technical
documentation some years after DoC had been issued.
Regards,
Tom
Tomonori Sato vef00...@nifty.ne.jp
URL: http://homepage3.nifty.com/tsato/
-
This message is from the IEEE Product Safety Engineering Society emc-pstc
discussion list. To post a message to the list, send
zone, with the
antenna in question.
Cut and pasted from the website of Tom Rauch, W8JI:
Nearfield
The nearfield area is an area where the ultimate pattern is not fully formed,
and where induction fields (from charge distribution and charge movement) have
a noticeable effect.
It is possible
is not
fully formed. From less than one wavelength to over 100 wavelengths we
are in the Fresnel zone, with the antenna in question.
Cut and pasted from the website of Tom Rauch, W8JI:
Nearfield
The nearfield area is an area where the ultimate pattern is not fully
formed, and where induction fields (from
to seek out the reference
and it is now time to hear from you quote the chapter and 'verse' where the
FCC state that these are exempted
sincerely, :-)
Tim Foo
Sykes, William Thomas (Tom) wsy...@lucent.com wrote on 08/05/2004 07:27
AM
All:
Please refer to the Guidelines on the application
.
Anyway, I guess I should recommend to revise the design to
improve the immunity.
Regards,
Tom
--
Tomonori Sato vef00...@nifty.ne.jp
URL: http://homepage3.nifty.com/tsato/
---
This message is from
http://www.ieee-pses.org/symposium http://www.emc2004.org/
--
The one I have was revised on 10/11/02.
Doug
Sykes, William Thomas (Tom) wsy...@lucent.com
Sent by: owner-emc-p...@listserv.ieee.org
06/11/04 01:26 PM
at 300m or 1600m?
I think such extrapolation can cause quite large error in the result.
Does anybody here has experience to use the former method for compliance
test, or does anybody knows of more detailed requirements or guidelines?
Regards,
Tom
that the product complies with the requirements mainly through
desk check, and with few or no re-testing.
In my opinion only.
Regards,
Tom
Tomonori Sato vef00...@nifty.ne.jp
URL: http://homepage3.nifty.com/tsato/
This message is from the IEEE Product Safety Engineering Society
emc-pstc discussion list
know if you plan to attend. Announcement of this meeting will
NOT appear in SCANFAX so please spread the word to your colleagues!
RSVP : Tom Brenner - 847/ 537-6400 tbren...@dlsemc.com or
Ken Thomas - 262/ 331-4454 ktho...@wi.rr.com
News flash: We now have the required number
...@majordomo.ieee.org
[mailto:owner-emc-p...@majordomo.ieee.org]On Behalf Of Mark Haynes
Sent: Thursday, October 18, 2001 12:44 PM
To: IEEE EMC-PSTC Discussion List (E-mail)
Cc: Peter Deneault (E-mail); Tom Brenner; Doug Harris
Subject: Motor Drive Grounding Scheme
Greetings All,
I work for a product safety
are critically overviewed.
Both papers have been presented during the 2001 IEEE International
Symposium on EMC, Montréal, August 13 to 17, 2001
SPEAKERS
Dr. Pavlasek: Tom Pavlasek is an Emeritus Professor in Electrical and
Computer Engineering at McGill University. His research interests include
to the FCC at all to get your standards.
From: Price, Ed ed.pr...@cubic.com
List-Post: emc-pstc@listserv.ieee.org
Date: Mon, 9 Jan 2006 17:09:37 -0800
To: emc-p...@ieee.org
Subject: RE: Making Standards Free
-Original Message-
From: Sykes, William Thomas (Tom) [mailto:wsy...@lucent.com
Hi,
Isn't CISPR 16-4 the preferred method? This is what was
specified to us by our accrediting agency.
Regards
Doug
--- Sykes, William Thomas (Tom) wsy...@lucent.com wrote:
All:
Elliott:
If one looks in the back of TR 100028-1 V1.3.1, under Document
History, one will find:
History
are
to be injected to each of the lines one by one.
Regards,
Tom
Tomonori Sato vef00...@nifty.ne.jp
URL: http://homepage3.nifty.com/tsato/
-
This message is from the IEEE Product Safety Engineering Society
emc-pstc
...
and the corresponding figures suggest that the disturbance are
to be injected to each of the lines one by one.
Regards,
Tom
Tomonori Sato vef00...@nifty.ne.jp
URL: http://homepage3.nifty.com/tsato/
-
This message is from the IEEE Product Safety Engineering Society
emc-pstc discussion list
in azimuth and elevation (i.e., boresight
is required).
Maybe it seems reasonable, but I think it can be a time consuming process
to conduct the test strictly as specified in the standard, especially for
large EUTs.
Regards,
Tom
--
Tomonori Sato
with Tom and use this forum to try
to initiate our former colonial cousins into the mysteries of European
regulatory compliance.
--
OOO - Own Opinions Only. Try www.jmwa.demon.co.uk and www.isce.org.uk
Swine wave - a waveform whose spectrum is exceptionally difficult to calculate.
John Woodgate, J M
, maybe you can find the explanation in CENELEC Guide 25.
Regards,
Tom
-
This message is from the IEEE Product Safety Engineering Society
emc-pstc discussion list.Website: http://www.ieee-pses.org/
To post a message to the list, send your e-mail to emc-p...@ieee.org
Instructions: http
anyone explain me how should I interpret this, and what those
entries with docopocoss of 1.8.2007 (marked ** above) stand for?
Regards,
Tom
Tomonori Sato vef00...@nifty.ne.jp
URL: http://homepage3.nifty.com/tsato/
-
This message is from the IEEE Product Safety Engineering Society
emc-pstc
to this issue?
Regards,
Tom
Tomonori Sato vef00...@nifty.ne.jp
URL: http://homepage3.nifty.com/tsato/
-
This message is from the IEEE Product Safety Engineering Society
emc-pstc discussion list.Website: http://www.ieee-pses.org/
To post a message to the list, send your e-mail to emc-p
tests, but now just too many, so have talked the
warehouse guy into testing monthly samples - a Tom Sawyer-style scam.
Brian
-Original Message-
From: emc-p...@ieee.org [mailto:emc-p...@ieee.org]On Behalf Of
McInturff, Gary
Sent: Tuesday, January 24, 2012 2:46 PM
To: 'Peter Tarver'; 'EMC
. This means you can do tests at your location if you
already have the equipment.
best regards
Tom Cokenias
T.N. Cokenias Consulting
P.O. Box 1086
El Granada CA 94018
On Feb 28, 2012, at 8:07 AM, Scott Xe wrote:
RTTE compliance test reports
I notice that some compliance reports of RTTE are reviewed
samples, with photo of bulldozers crushing and
otherwise rendering useless all the would- be merchandise. Pretty impressive.
I was working in private sector lab when this happened - the article was a
great sales tool with customers who balked at the expense of doing all that
testing...
Tom
to generate elec-
tromagnetic disturbance, or the performance of which is
liable to be affected by such disturbance;
Is such test fixtures made commercially available as a single
functional unit?
Regards,
Tom
--
Tomonori Sato vef00...@nifty.ne.jp
URL: http://homepage3.nifty.com/tsato/
From
: Monday, February 25, 2013 2:45 PM
To: EMC-PSTC
Cc: Thomas M Burke
Subject: Ecma TR-106 available
Posted on behalf of Tom Burke, UL:
More good news for those seeking to learn more about IEC 62368-1 as the ICT
Industry prepares for the eventual transition from IEC 60950-1 (and IEC 60065)
to IEC
. The safety implications of the fix
are generally left up to the manufacturer.
Tom Cokenias
T.N. Cokenias Consulting
P.O Box 1086
El Granada CA 94018
tel 650 726 1263
fax 650 726 1252
On Mar 13, 2013, at 10:08 AM, Ed Price wrote:
Scott, what is a “critical component?”
How would I recognize one?
Would
). At these frequencies you would be
allowed 200 uV/m at 3m, not much but you aren't allowed higher power until
you get to 902-928 MHz band.
best regards
Tom
On Mar 12, 2013, at 12:28 PM, John Woodgate wrote:
Does the FCC allow very low power wireless devices (transmitting speech
). At these frequencies you would be
allowed 200 uV/m at 3m, not much but you aren't allowed higher power until
you get to 902-928 MHz band.
best regards
Tom
On Mar 12, 2013, at 12:28 PM, John Woodgate wrote:
Does the FCC allow very low power wireless devices (transmitting speech for
assisted
, 2013 3:35 AM
Subject: Re: Single Point Grounding - Not Achievable at High Frequencies
(greater than a few MHz)
In message 1369105334.30674.yahoomail...@web160401.mail.bf1.yahoo.com,
dated Mon, 20 May 2013, Bill Owsley wdows...@yahoo.com writes:
Dr. Tom Van Doren demonstrates that single point
an insulating coating on a metallic
structure., so I think we should put the casters, which have plastic wheel but
metal hub and metal supporting structure so probably not bulk non-conducting,
on 0.1 m insulating support in this case.
Regards,
Tom
--
Tomonori Sato vef00...@nifty.ne.jp
URL: http
Hi Binayak
Your product is used and sold for use in the non-residential/industrial
environment only, so your product is class A and requires verification only,
even though it could be connected to a class B computer as a peripheral
best regards
Tom Cokenias
On Aug 22, 2013, at 11:48 AM
is permitted in lieu of the latest edition of ANSI C63.4.
Regards,
Tom
--
Tomonori Sato vef00...@nifty.ne.jp
URL: http://homepage3.nifty.com/tsato/
From: Ian McBurney [mailto:ian.mcbur...@allen-heath.com]
Sent: Tuesday, September 17, 2013 10:35 AM
To: EMC-PSTC@LISTSERV.IEEE.ORGmailto:EMC-PSTC
a typical 1m x 1.5m table?
Regards,
Tom
--
Tomonori Sato vef00...@nifty.ne.jp
URL: http://homepage3.nifty.com/tsato/
-
This message is from
think them as RF lighting
in a broad sense.
I asked FCC about this topic, and the answer was that LED lightings
would not be regarded as Part 18 device even if it use RF PWM to
drive the LEDs.
Regards,
Tom
--
Tomonori Sato vef00...@nifty.ne.jp
URL: http://homepage3.nifty.com/tsato/
From: emc-p
and those LEDs will
be driven by RF current, and some may think them as RF lighting
in a broad sense.
I asked FCC about this topic, and the answer was that LED lightings
would not be regarded as Part 18 device even if it use RF PWM to
drive the LEDs.
Regards,
Tom
--
Tomonori Sato vef00...@nifty.ne.jp
Thanks Tom, I have found nothing as well in either the Blue Guide, EMC
Directive, RTTE Directive or the guides to these Directives.. I will check the
document you mention.
Bob Heller
St. Paul, MN 55107-1208
Tel: 651-778-6336
Fax: 651-778-6252
Fundamentals of EMC where we will have Tom
Braxton (Shure, Inc.) speak to all the terms and specifications that we use in
the daily EMC arena. This is must attend for new engineers!
Please forward this email to anyone that you feel will benefit from our annual
event. (If possible, please print out
/application
requirements applicable to products used/sold only to the federal govt or
military.
best regards
Tom
T.N. Cokenias Consulting
P.O. Box 1086
El Granada CA 94018
tel 650 726 1263
fax 650 726 1252
mobile 650 302 0887
On Oct 12, 2010, at 1:52 PM, Christopher wrote
Whoops! Good points made by Adam Rudd Tom Sato. They give valid support
for using the EN version standards in contrast to the IEC versions.
I have the BS EN 55024:1998 CISPR 24:1997 incorporating Amendments Nos. 1 and
2. This BSI version does not have an Endorsement Notice, but I assume
I sense a reawakening of Tesla’s dream of distributing utility power via RF.
Best Regards,
Mike
From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of Fred Townsend
Sent: Monday, August 23, 2010 9:48 AM
To: Tom Cokenias
Cc: Price, Edward; EMC-PSTC
ambients in the .150-30 MHz region, you
may need to take steps to shield your equipment and set-up.
Best regards
Tom Cokenias
Consultant, EMC Radio Type Approvals
-
This message is coming from the emc-pstc discussion list.
To cancel your subscription, send mail to majord
of
these failures.
That's all I can remember about similar problems in various labs over the
years. Hope it helps, and please share the solution when you find it.
Best regards
Tom Cokenias
EMC and RF Approvals Consultant
Hello group,
I recently carried out a conducted emission in our
of
these failures.
That's all I can remember about similar problems in various labs over the
years. Hope it helps, and please share the solution when you find it.
Best regards
Tom Cokenias
EMC and RF Approvals Consultant
Hello group,
I recently carried out a conducted emission in our
regulations are defined,
it appears the only type of mutual recongnition that will occur will be for
unintentional radiators, such as ITE equipment, and this is already in
place.
Happy New Year, everybody!
Tom Cokenias
EMC/Radio Approvals Consultant
-
This message is coming from
Tom Donnelly wrote:
When making measurements to CFR 47, Part 15, and using
ANSI C63.4-1992 there are 2 requirements that conflict
for measurements at lower frequencies. The first
allows broadband antenna use as long as the results
can be correlated to a 1/2 wave tuned dipole. The
second
and
was prepared to help. Give yours a call if you suspect power line. Good
luck.
Tom Cokenias
EMC Consultant/Radio Type Approvals
Hello Group -
Here's a problem for you all to think about and hopefully help solve.
I have a room in the corner of my building where I perform EMI pre-scans
, May 18, 1999 11:21 AM
To: 'EMC-PSTC - forum'
Cc: Tom Unger
Subject: RE: Surge Suppressors to ground
Sorry to re-open a thread that is almost 2 years old, but here goes...
We are designing a product for 120V markets only, so there are no
immunity requirements from a regulatory
that we are getting
to. Read and send Emails from and to emc-pstc group is an important part of
our professional life.
Special thanks to the volunteer list administrators for doing an outstanding
job keeping the machinery running and keeping the rife raff out, and Tom Bao
who keeps our discussions
May 11th (1999) - IEEE SCV EMC Chapter Meeting.
Topic
-
SFSU Recent Research Projects
Moderator: Dr. Zorica Pantic-Tanner
Director, School of Engineering
San Francisco State University
Where
-
7:30 pm - 9:00 pm, Auspex, 2300 Central Expressway, Bldg. A, Santa Clara
-2 3
Harmonics and Flicker Requirements
Speaker: Mr. Tom Mahr, Gen. Mgr. Voltech Inst's
Morrisville NC
March 24th, 1999 Subject: Surge Standards for UPS and Surpressors
Hi Tom:
So, for voltage up to 450V d.c. (i.e. up to 318V a.c.), capacitor
up to 0.1uF will become a Limited Current Circuit, hence the voltage
is not Hazardous Voltage (1.2.8.4) - no additional condition would
be required for the capacitor connected to the primary circuit
Hi Tom:
So, for voltage up to 450V d.c. (i.e. up to 318V a.c.), capacitor
up to 0.1uF will become a Limited Current Circuit, hence the voltage
is not Hazardous Voltage (1.2.8.4) - no additional condition would
be required for the capacitor connected to the primary circuit
Thanks Tom for alerting me that I miss posting the message below to the
group.
I still wonder how to fet the arrowheads '' that echo what that was
fowarded from the original message to differentiate what I am (trying to)
reply to!
e.g.
On 12 Nov 02 16:25,T.Sato vef00...@nifty.ne.jp wrote
dielectric
tables which seems MOSTLY made from foam material:
http://www.ets-lindgren.com/LDT
We made our test table from cheaper and readily available Styrofoam boards.
Regards,
Tom
--
Tomonori Sato vef00...@nifty.ne.jpmailto:vef00...@nifty.ne.jp
URL: http://homepage3.nifty.com/tsato
labelers who
supplied completed product from OEMs may have hard time.
Regards,
Tom
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if no other changes were
necessary. For some directives such as RTTED (RED), other significant
changes were also made. NLF itself have big impact, and I guess own
brand labelers who supplied completed product from OEMs may have hard time.
Regards, Tom
such requirements.
Regards,
Tom
--
Tomonori Sato vef00...@nifty.ne.jpmailto:vef00...@nifty.ne.jp
URL: http://homepage3.nifty.com/tsato/
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discussion list
information to amend or correct what I have
stated. (I would also like to know how you would run testing on a
Caterpillar 797. I don't think it would fit in many chambers.)
If international standards are accepted, I think we can measure those emissions
with CISPR 12 test method.
Regards,
Tom
.
However, even if VDU is part of the EUT, Scrolling Hs is described in
CISPR 22:2008 Annex G which is infomative, and the annex is deleted in
EN 55022:2010.
In the case of BSMI, they have lot of local rules which are difficult to
know.
Regards,
Tom
-Message d'origine-
De : John
illumination as specified in IEC/EN 61000-4-3.
Regards,
Tom
-Original Message-
From: Kunde, Brian [mailto:brian_ku...@lecotc.com]
Sent: Friday 8 May 2015 21:56
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: [PSES] Radiated Immunity at 1meter distance
With the release of the 4th edition of IEC60601
ure's choice.
However, recent directives such as 2014/30/EU and 2014/35/EU says:
"... a single EU declaration of conformity shall be drawn up in respect of
all such Union acts."
Regards,
Tom
-
This message is from the IEEE Product
ectives such as 2014/30/EU and 2014/35/EU says:
"... a single EU declaration of conformity shall be drawn up in respect of
all such Union acts."
Regards,
Tom
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This message is from the IEEE Product Safety Engineering S
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