.
Products manufactured within China CCEE mark only.
Regards
Patrick Wong
Senior Manager,
Electrical and EMC Dept.
The Hong Kong Standards and Testing Centre
- Original Message -
From:
To:
Sent: Tuesday, May 15, 2001 12:05 AM
Subject: China
>
> I am aware of China's requi
on EN and
converted into their national languages.
Regards
Patrick Wong
Senior Manger,
Electrical and EMC Dept.
The Hong Kong Standards and Testing Centre
- Original Message -
From:
To:
Sent: Friday, May 11, 2001 3:08 PM
Subject: LVD directive in Scandinavia
>
> Understand Sca
.
Regards
Patrick
- Original Message -
From: "Gary McInturff"
To: "Tony Reynolds" ;
Sent: Thursday, April 19, 2001 12:35 AM
Subject: RE:
>
> If you are accredited by the FCC then I assume you have to accept data
from
> our accredited FCC sites as well, and there i
You should probably include the Philippines on the list as well.
I've heard anecdotal stories about people bringing their US appliances
to the Philippines, only to have them burn out when they plugged the
cord into the 216VAC NEMA wall socket.
Apparently, a common solution is to use a step-down tr
Our company makes open frame linear and switch-mode component power
supplies in the range of 5-500W. Applications include industrial, and
medical equipment.
The sales distributor we use in Australia has contacted us asking for
EMC documentation to support C-Tick marking of our products, as
requ
Does anyone have a copy of the EN61000-3-3 Millenium Ammendment they
would be willing to share?
On Fri, 2 Mar 2001 08:22:08 +, John Woodgate
wrote:
>I don't suppose you have the big 'Millennium' amendment to the standard,
>which STILL isn't published yet? Even though (actually, 'because') i
I think it was http://parts.lvctechnology.com/
Patrick Lawler
plaw...@west.net
On Mon, 5 Feb 2001 17:16:38 -0500 , "Veit, Andy"
wrote:
>I hope someone will be kind enough to help me.
>A while back, someone posted a link to a vendor of used test equipment. The
>vendor al
Dear Warwick,
Thanks for your reply, the clause 6 deal with overvoltage protection for
communication port (TNV circuit), such as modem for PC, fax machine etc. To
test for 950 clause 6, we do need a special pulse generator and high current
transformer etc.
Regards
Patrick
- Original
the
associated test equipment or possibly any associated information.
Regards
Patrick Wong
The Hong Kong Standards and Testing Centre
the
associated test equipment or possibly any associated information.
Regards
Patrick Wong
The Hong Kong Standards and Testing Centre
ment 14, there is no evaluation of the
>input current waveform to determine the test limit. The application
>alone will determine the test limit used.
>
>
>Patrick Lawler
>plaw...@west.net
>
>
>On Tue, 12 Dec 2000 10:03:50 +1100, Jon Keeble
> wrote:
>>You may
e 1 of the standard.
This enabled you to use the less-stringent Class A limits.
With the incorporation of Ammendment 14, there is no evaluation of the
input current waveform to determine the test limit. The application
alone will determine the test limit used.
----
Patrick Lawler
plaw...@west.net
procedure specified in section 18.311 (MP-5) gives a
graph of LISN performance that only goes down to 150kHz.
Am I missing something, or is this the way the regulations read?
----
Patrick Lawler
plaw...@west.net
---
This message is from the IEEE EMC Socie
the web, and found some interesting background on that
unit of measurement:
http://www.ki.se/onkpat/radfys/sievert/Sievert.html
Patrick Lawler
plaw...@west.net
---
This message is from the IEEE EMC Society Product Safety
Technical Committee emc-p
drops.
I also have a copy of IEC1000-4-11:1994, which has a reference to a UNIPEDE
study conducted in 1991. I'm looking into that now.
Any suggestions?
Patrick Lawler
plaw...@west.net
---
This message is from the IEEE EMC Society Product Sa
On Thu, 12 Oct 2000 13:22:30 EDT, lfresea...@aol.com wrote:
>does anyone have a SPICE model for an MOV?
>
>Thanks,
>Derek.
Take a look at the models offered by Intusoft
http://www.intusoft.com/Models.htm , and look for the 'Varistors' link.
Also try Littelfuse. They now own the Harris/GE varist
I was at the CENELEC web site http://www.cenelec.org/ looking for a
reference to the current version of EN61010-1 (Safety for lab equipment),
and found confusing information.
The results of the search gave a CENELEC reference that said that
EN61010-1:1993/A2:1995 had a DOW of 1996-04-01. I take
Good grief. We haven't reached the DOW of the EN50082-1:1998, and already
they're discussing replacing it!
On Wed, 20 Sep 2000 11:10:18 -0400, wo...@sensormatic.com wrote:
>A new generic immunity standard for residential, commercial and light
>industrial equipment is in voting stage. DOW is prop
I was reviewing the voltage dip/interrupt requirements of BS
EN61000-6-2:1999, and noticed that one test condition is a 60% dip for 5
periods (0.1s at 50 Hz), while another is 60% for 50 periods (1s at 50Hz).
Both tests require Performance Criteria C.
- Wouldn't a single test at 50 periods cover
Do these standards (50204 & 61000-4-3)represent the same test?
I thought ENV50140 was the predecessor to IEC801-3/61000-4-3.
CENELEC describes ENC50204 as 'Radiated electromagnetic field from digital
radio telephones', with the scope being:
'The standard relates to the immunity of electrical and
services (like
IHS, Global Documents, Document Center, Document Engineering, CSS, etc.), or do
I need to go directly CENELEC?
On Wed, 2 Aug 2000 09:48:48 +0800, Raymond Li
wrote:
>Patrick,
>The below link connects to a blank page. I went to the root of cenelec website
>and appears mo
0Vac and the products have to be taken care the safety at 240Vac. Can anyone
>tell me where I can find a copy of this memo and if there is any updated
>version
>to replace this one.
>
>Thanks and regards,
>
>Raymond Li
>Dixons Asia Ltd.
Patrick Lawler
plaw...@west.net
his than to build my own modulator?
>
>Thanks,
>
>Jeff Bailey
>Compliance Engineering
>SST - A Division of Woodhead Canada
>Phone: (519) 725 5136 ext. 363
>Fax: (519) 725 1515
>Email: jbai...@sstech.on.ca
>Web: www.sstech.on.ca
Patrick Lawler
plaw...@west.ne
I follow EMC issues on several mailing lists. However, I haven't
looked into web-based forums.
Does anyone have any favorite sites for EMC discussions?
Patrick Lawler
plaw...@west.net
---
This message is from the IEEE EMC Society Product S
oftware, so it must be cheaper than $3.000
>
>Best regards,
>Kim Boll Jensen
Patrick Lawler
plaw...@west.net
---
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Technical Committee emc-pstc discussion list.
To cancel your subscription, se
There is no surge (IEC 61000-4-5) requirement in EN 50082-1:1992.
The only AC port test is EFT/Burst, at a test level of 1 kV.
On Fri, 30 Jun 2000 10:09:14 -0400, you wrote:
>Here is an EMC related question. What did the EN 50082-1 standard dated
>1992, (not the 1997 version), specify regarding
perseded, and when you had to stop using the superseded standard (to
claim compliance to the EMC Directive).
Corrections from list members appreciated.
Patrick Lawler
plaw...@west.net
-Original Message-
From: don_macart...@selinc.com
Sent: Monday, June 19, 2000 1:07 PM
To: emc-p...@majo
someone point me to the appropriate section?
Patrick Lawler
plaw...@west.net
---
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Technical Committee emc-pstc discussion list.
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majord...@ieee.org
to be addressed or if testing
>is a matter of choice.
>
>Thank you in advance for your help
>
>Cyril A. Binnom Jr.
>EMI/EMC Approvals Engineer
>(770) 447-4224 Ext.3240
>(770) 447-6928 Fax
>e-mail binno...@lxe.com
>
>Visit Our Websi
;For policy questions, send mail to:
> Richard Nute: ri...@ieee.org
>
>
>---
>This message is from the IEEE EMC Society Product Safety
>Technical Committee emc-pstc discussion list.
>
>To cancel your sub
+55.48.234.5422
>e-mail: hari.m...@inep.ufsc.br/Internet:www.inep.ufsc.br
Patrick Lawler
plaw...@west.net
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1m by 1m
>ground plane as our ground plane is 36 inches by 6 feet.
Patrick Lawler
plaw...@west.net
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ield uniformity
measurements in chambers. Is this procedure an issue for GTEMs?
----
Patrick Lawler
plaw...@west.net
---
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I think ENV 50141 was the only approved standard (of this type)
available in March 1995 (when EN 50082-2:1995 was published).
EN 50082-2 is being replaced by EN 61000-6-2:1999 (DOP 2000-1-1, DOW
2002-4-1). Although I don't have a copy, I assume it references the
newer EN61000-4-6 test standard.
Interesting that this would come up.
I just read an article in Medical Device & Diagnostic Industry
magazine that discusses the fields generated by anti-theft systems.
You can see it at
http://www.devicelink.com/mddi/archive/00/01/016.html
On Tue, 21 Mar 2000 08:45:12 + (GMT), tim.hay...@ge
As an excerise, I tried to find the directive that this standard was
harmonized under.
I looked on the Europa site under the EMC, Medical Device, and Active
Implantable Medical Device directives to no avail.
http://europa.eu.int/comm/enterprise/newapproach/standardization/harmstds/reflist.html
Is
On Tue, 14 Mar 2000 17:02:52 -0500, geor...@lexmark.com wrote:
>CBS has used their well honed voting models to analyze the early
>election returns. With less than 1% of the votes counted, and the
>Far East results not yet in, Dan Rather has declared a "non-split"
>forum the clear winner by a wide
On Fri, 10 Mar 2000 15:34:39 -0800, wrote:
>If this is becoming an issue, I would like to recommend that the Subject
>header in the e-mail be preceded by either "EMC:" or "SAF:" followed by the
>subject.This way, persons not interested in one or the other could
>easily delete the message with
>From MIL-STD-285 Notice 1:
"MIL-STD-285, dated 25 June 1956, is hereby canceled. The preparing
activity for this document has determined that IEEE-STD-299 is a
suitable replacement for this standard.
Users are cautioned to evaluate this document for their particular
application before citing it
Would it be appropriate to apply the TCF approach (EMC Direcitve
definition) for your compliance statement?
Exerpted from Article 10:
"2. In the case of apparatus for which the manufacturer has not
applied, or has applied only in part, the standards referred to in
^^
bout other Ethernet
speeds but I would check the IEEE Standards, they should tell you minimum
length.
Hope this helps.
Al Patrick
Sr. EMC Engineer
Scientific-Atlanta Inc.
al.patr...@sciatl.com
-Original Message-
From: Lacey,Scott [mailto:sla...@foxboro.com]
Sent: Wednesday, March 01,
Concerning putting your rack-mounted equipment an additional 0.8m
above the floor:
Clause 7.2 also says that this arrangement must be safe. If the 0.8m
support is too small in area, the test setup would violate this
requirement.
The clause also says that this setup may be done if specifically
re
California Instruments has products that meet that requirement.
Although the generator we bought 3-4 years ago didn't meet the 5us
spec, they later introduced an accessory box that make the generator
system compliant.
Maybe that feature has been designed-in by now.
On Mon, 24 Jan 2000 16:11:28 -0
The performance & construction of the LISN is documented in CISPR
16-1. The line cord is not part of the discussion.
Your test standard (BS EN 55022) specifies the setup and AC mains cord
length.
To complicate matters, EN50022 doesn't _exactly_ call out an 1 meter
AC cord. Paraphased it says:
using biconicals.
Al Patrick, Sr. EMC Engineer - Scientific-Atlanta Inc. 5030 EMC Lab.
al.patr...@sciatl.com
-Original Message-
From: Price, Ed [mailto:ed.pr...@cubic.com]
Sent: Wednesday, January 19, 2000 1:27 PM
To: 'hoban...@racalcomm.com'; emc-p...@majordomo.i
able along
with the PC and monitor.
I contend that the typical application has the foot pedal on the
floor, and the test setup should follow the typical application.
Comments?
On a similar note, should the test setup for Conducted & Radiated
Immunity follow the Emissions setup?
--
Patri
sic and product standards that would apply to the LV and R&TTE
>Directives.
>
>There are no worker limits promulgated at the EU level.
>
>Which leads me to my question. When would this new interpretation of the
>essential requirement take effect - now or the DOW of the associa
d the radiation levels for any other
>emmitig devices, machinery, GSM antennae, power cables, etc. The more
>information the better.
>
>David - The V/m guy
--
Patrick Lawler
plaw...@west.net
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les of thumb" or a "quick and dirty" means of determining
>whether conducted emission noise (or radiated) is common mode or
>differential mode?
>
>Thanks and have a great new year.
>
>Bob Heller
>3M Company
--
Patrick Lawler
plaw...@west.net
-
This message
1 and
> 7/1/2001. Thank you.
>
> Happy New Year!
>
> Regards,
>
> Lisa
--
Patrick Lawler
plaw...@west.net
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may not be published in time for a listing in the OJ in time for 1 Jan
>2001. The four year reduction to 50 W may not survive into the later
>edition, or it may be revised subsequently. In view of the ban on
>"certification clauses" (... previous standard may be used unt
& RELAY STSTEMS
Can someone recommend vendors of test equipment or test labs in Southern
California?
How does this test differ from the IEC 61000-4-4 fast transient test done on
end-user equipment?
Thanks,
--
Patrick Lawler
plaw...@west.net
-
This message is coming from the emc-
owatt
microwave transmitters for years and I don't have cataracts.
Al Patrick
-Original Message-
From: Gorodetsky, Vitaly [mailto:vgorodet...@canoga.com]
Sent: Friday, December 03, 1999 8:28 PM
To: 'Patrick, Al'
Subject:RE: Cell Phone Hazards?
Al,
Y
get upset.
Al Patrick
-Original Message-
From: Martin Green [mailto:martin.gr...@iti.co.uk]
Sent: Friday, December 03, 1999 4:09 AM
To: 'Patrick, Al'; 'mkel...@es.com';
e
s, but couldn't come up with a test setup I
was satisfied with.
--
Patrick Lawler
plaw...@west.net
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ue!" and "it sell
newspapers" or "better ratings on the nightly news".
There's my two cents and change for a dollar.
Al Patrick
Note! These opinions are my own and not of my employers. The names have
been changes to protect the guilty. Batteries not included.
John, your right on target.
There is good science and bad science and we should step back and let the
good scientists do their job. There is too much speculation in this to be
good science.
Al Patrick, EMC Lab Engineering Manager
Scientific-Atlanta Inc.
al.patr...@sciatl.com
ne has any experience with this type of
>problem or has worked with the Ametek blower? Any suggestions would be
>greatly appreciated.
>
>Ray Levasseur
>EMC Compliance
>Creo Products
--
Patrick Lawler
plaw...@west.net
-
This message is coming from the emc-pstc discussi
lane is
>justified by eliminating the coupling of "dirty ground" to other circuits in
>an overlap situation.
>
>I would like to hear what you do for pcb grounding and why you do it.
>
>Don Umbdenstock
>Sensormatic
--
Patrick Lawler
plaw...@west.net
-
This mess
Scott,
You can buy wallpaper made to cover uneven walls. When applied it will
produce a nice white wall, which can be painted, wallpapered of left alone.
This is what was recommended by my chamber manufacture, and is what I plan
to do.
Al Patrick, Sr. EMC Engineer - EMC Lab Manager
in this matter.
>
>mit freundlichen Gruessen/ best regards
>Volker Gasse
>
>IBM Germany, Technical Relations/Product Safety,
>Tel: +49-7031-16-6796, Fax: -6916, e-mail: ga...@de.ibm.com
>Mail: D3114/7103-91, D-70548 Stuttgart, Germany
--
Patrick Lawler
plaw...@west.net
--
Do any of you know where I can find a 1 1/4" fuse, that meets IEC 127 (EN
>60127)?
--
Patrick Lawler
plaw...@west.net
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nd I'd like to talk
>with someone who still has one.
>
>Also looking for an 8590A Service Manual (or someone willing to loan one
>for a couple of days while I make a copy). I'd pay roundtrip Fed-X,
>naturally.
>
>Thanks for the opportunity to post!
>
>Jim Eri
the E7400 series
instead of the 8590 instruments.
I've been using the 8591EM for several years now with good results. We're
going to buy another analyzer, and it will probably be an E7401A.
Unfortunately, it's taken me over 3 months just to get a demo unit. It should
be here any d
and if there are resonances,
>> etc.
>> Several options have crossed my mind, including adding a tracking
>> generator to my spectrum analyzer, buying an impedance analyzer, using
>> a
>> network analyzer, etc.
>>
>> I'd appreciate any experiences
commercial labs and
show a correlation of about 2.6 to 3 dB.
Now this is not bad if I do say so myself. I only need to recheck the Field
Uniformity, which I do not think will be adversely affected.
Al Patrick, Sr. EMC Engineer - Manager of EMC Lab Operations
Scientific-Atlanta Inc.
al.patr
lready found that 1 Meter is about the best distant to scan with out
to many reflections but it's easy to miss an emission too.
I'm "all ears" as they say.
Thank you,
Al Patrick, EMC Lab Manager
Scientific-Atlanta Inc.
al.patr...@sciatl.com
,
CISPR 22 publication and
FCC Subpart B Class A regulations" is not correct.
Al Patrick, EMC Lab Manager
Scientific-Atlanta Inc.
al.patr...@sciatl.com
-Original Message-
From: Steve Kuiper [mailto:aegisl...@email.msn.com]
Sent: Wednesday, August 18,
with the single line: "unsubscribe emc-pstc" (without the
>quotes). For help, send mail to ed.pr...@cubic.com,
>jim_bac...@monarch.com, ri...@sdd.hp.com, or
>roger.volgst...@compaq.com (the list administrators).
>
>
--
Patrick Lawler
plaw...@west.net
-
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eryone: I don't want
>to offend anyone.
Well, at least you told us beforehand. Considered us warned.
--
Patrick Lawler
plaw...@west.net
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it is still in use today.
Al Patrick, Sr. EMC Engineer - EMC lab Manager
Scientific-Atlanta Inc.
-Original Message-
From: Gary McInturff [mailto:gmcintu...@packetengines.com]
Sent: Friday, July 30, 1999 11:21 AM
To: 'Green, Henry'; 'Qu Pingyu'; '
vance,
>>Moshe
>>
>>Name: moshe valdman
>>E-mail: mvald...@netvision.net.il
>>Phone: 972-54-881334
>>Telefax: 972-3-5496369
>>Date: 29/6/99
>>Time: 0:08:41
--
Patrick Lawler
plaw...@west.net
-
This messa
it was controlling an overhead
crane).
What are the problems or issues addressed by EN55024 that were not covered by
EN50082-1?
--
Patrick Lawler
plaw...@west.net
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around the corner, and
>that edition _does_ call out the harmonic test. However, I've been told
>that
>it may not take effect until 2003.
--
Patrick Lawler
plaw...@west.net
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On Fri, 18 Jun 1999 09:25:51 -0800, Jon Griver wrote:
>
> From: Jon Griver
> Subject: Medical Device Directive, IEC 601-1-2, and IEC 1000-3-2
> Date: Fri, 18 Jun 1999 14:52:16 +0300
> To: emc-p...@majordomo.ieee.org
>
>> Patrick,
>>
t the harmonic standard does not apply to this system when
it becomes mandatory in 2001?
I realize the Second Edition of IEC60601-1-2 is just around the corner, and
that edition _does_ call out the harmonic test. However, I've been told that
it may not take effect until 2003.
--
Patrick L
t the limits _and_ the design of the LISN. Does this mean they
accommodated the LISN attenuation when the limits were set?
--
Patrick Lawler
plaw...@west.net
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with the s
On Wed, 28 Apr 1999 11:14:38 -0500, Patrick Lawler wrote:
>At 04:21 PM 4/27/99 GMT, Robert Bonsen wrote:
>>My company is planning to purchase a screen room for radiated emissions
>>precompliance testing.
>>
>>I'm aware that reflections can cause resonances and drasti
Subject: Characterizing a screen room
>
> My company is planning to purchase a screen room for radiated
>emissions
> precompliance testing.
>
> I'm aware that reflections can cause resonances and drastically
>influence
> readings. Wha
My company is planning to purchase a screen room for radiated emissions
precompliance testing.
I'm aware that reflections can cause resonances and drastically influence
readings. What kind of testing could I do to characterize the room (aside from
simple experience)?
--
Patrick Lawler
positive and
negative low amplitude voltage fluctuations. Only conducted phenomena are
considered, including immunity tests for equipment connected to public and
industrial power supply networks.
Has the status of a Basic EMC publication.
---
--
Patrick Lawler
plaw...@west.net
-
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I just found out that IEC61000-4-2 (ESD immunity) has it's first amendment.
What changes does it have?
Thanks,
--
Patrick Lawler
plaw...@west.net
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ble to point me to any resources where I can learn more?
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Patrick Lawler
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quotes). F
as in the chamber could play an important part
of the product safety as well.
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Patrick Lawler
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re. I think they've moved.
"... they've moved."
Manchester Airport or the test house?
--
Patrick Lawler
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is to over build the ground plain. What I am using now is
about 40x80 ft of galvanized steel hardware cloth soldered every 5 to
6 inches. This allows me to test to other standards as well.
Al Patrick
Scientific-Atlanta
EMC Lab, Engineering Manager
al
mber.
As for node stirring, I have used wire screens to tune an indoor OATS
site to reduce reflections. But I can see how wire screen or absorber
tied to a celling fan might work in a chamber. Interesting.
Al Patrick
Scientific-Atlanta
EMC Pre-Scan
10/21/1998
>Time: 08:15:53
>--
>
>
>
>-
>This message is coming from the emc-pstc discussion list.
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>with the single line: "unsubscribe emc-pstc" (without the
>quotes). F
logical research, cardiac pacemakers, defibrillators and other surgical
procedures"
It doesn't seem to be harmonized yet. (http://www2.echo.lu/nasd/dckbl-14.html
and http://www2.echo.lu/nasd/dckbl-5.html)
--
Patrick Lawler
plaw...@west.net
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835
>Germantown, MD 20876 Email: jgarr...@hns.com
>
>
>
>-
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>with the single line: "unsubscribe emc-pstc" (without the
&g
surge circuit
described is the 10us/700us (also Annex N).
Is that the same situation with IEC950 4th Amendment?
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Patrick Lawler
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this waveform being defined in IEC60-1 and
IEC469-1 (neither of which I have), in case component values are in those
documents.
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d want documentation that supported the claim. The same
is true for EMC immunity.
--
Patrick Lawler
plaw...@west.net
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that the next version of IEC601-1-2 raises the contact discharge
voltage to 6kV. This doesn't seem like a big change.
If the trend is toward higher voltages in these other standards, I'd like to
find out so we can plan accordingly.
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Patrick Lawler
plaw...@west.net
-
This mess
n the 75W->50W reduction is 4 years later than the EU
implementation of the spec - 1/1/2005?
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Patrick Lawler
plaw...@west.net
this mean the standard would come into effect on
the DOW with a 50W lower limit?
--
Patrick Lawler
plaw...@west.net
>>ESAOTE S.p.A. Massimo Polignano
>>Research & Product Development Regulatory Affairs
>>Via di Caciolle,15 tel:+39.055.4229402
>>I- 50127 Florencefax:+39.055.4223305
>> e-mail: regr...@esaote.com
>>
>
>
>
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Patrick Lawler
plaw...@west.net
ry.
[FR Doc. 98-16628 Filed 6-24-98; 8:45 am]
BILLING CODE 6712-01-F
------- end pasted section ---
--
Patrick Lawler
plaw...@west.net
Does anyone know the status of immunity testing in Japan?
Radiated RF, ESD, EFT, Surge, Voltage dip, etc.
I've seen info that their emissions testing is voluntary.
Does this mean that their immunity requirements are years behind
emissions requirements?
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Patrick Lawler
plaw...@west.net
dards, that my brain automatically substitutes EN for IEC.
One of these days, I've got to write that "EU for Dummies" primer I
mentioned in the past ...
>>>> Patrick Lawler 980616-02.16 >>>
>IEC601-1-2 (Medical EMC requirements) has a section discussing
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