Detachable Power Cords

[Ann Haraksin]

 Hello All,
 
 I need some information concerning power cords.  We are currently 
 shipping floor-standing printers with the UL, ULc and CE markings to 
 North America and Europe with standard a US power cord.  Our company 
 wants to supply both US and European style power cords with every 
 unit.  UL is okay with this but I am not sure what the issues in 
 Europe might be other than the European power cord may not work in all 
 European countries.  In the future we will be entering into Australia, 
 China, and Taiwan any known issues with these countries as well. 
 
 
 Your help is greatly appreciated.
 
 Best Regards,
 
 Ann Haraksin
 CalComp Technologies Inc.
 ann_harak...@ccmail.calcomp.com

RE: EN 55022 ITE Class A vs. Class B?

[Grasso, Charles (Chaz)]

Well, This would be an appropriate occasion to open this can of worms
again!

 Ing. Gert Gremmen's response would, at first blush, lead you to
conclude that the
whole of the EU believes that Class B is the REQUIRED emissions level
for ITE. I do 
not agree. The push for Class B for ITE has been and still is being
pushed by Germany.
Indeed I believe the German EMC folks punish Class A ITE by imposing a
fine at each
and every installation. If this is true then Germany is violating the
fair trading practices
of the EU but no-one seems to be able to stop them. Please - if I am
mistaken can 
some-one tell me??

To be fair, there is some precedent to the insistence of Class B to ITE
and it stems from 
the original tie-ins of the Generic Emissions Standard and the Generic
Immunity Standard
which tied in Class B emissions and Light Industrial Immunity levels.
However with the
release of the family specific ITE emissions standard and the pending
release of the family 
specific Immunity standard, the general industry opinion was that this
tie in had gone away.

Comments??







 
Thank you
Charles Grasso
EMC Engineer
StorageTek
2270 Sth 88th Street
Louisville CO 80027 MS 4262
gra...@louisville.stortek.com
Tel:(303)673-2908
Fax(303)661-7115
Symposium Website URL: http://www.ball.com/aerospace/ieee_emc.html


>--
>From:  Ing. Gert Gremmen[SMTP:cet...@cetest.nl]
>Reply To:  Ing. Gert Gremmen
>Sent:  Wednesday, April 08, 1998 1:10 AM
>To:Tommy H. Lee
>Cc:EMC-PSTC
>Subject:   Re: EN 55022 ITE Class A vs. Class B?
>
>hello Tommy,
>
>
>For ITE equipment you'd better perform to Class B, in the whole of the EU.
>Class A is restricted to industrial locations only, and this is according to
>the EMC-directive very limited area.
>
>Garages, hospitals, offices and even standard light industry should be
>classified acc. to B.
>
>
>Difference between A and B is distance of testing. The limits for Class A
>are valid at a testing distance of 30 meters, where Class B requires them to
>be met at 10 meters.
>
>Regards,
>
>Ing. Gert  Gremmen
>== Ce-test, Qualified testing ==
>Consultants in EMC, Electrical safety and Telecommunication
>Compliance tests for European standards and ce-marking
>Member of NEC/IEC voting committee for EMC.
>Our Web presence: http://www.cetest.nl
>List of current harmonized standards http://www.cetest.nl/emc-harm.htm
>15 great tips for the EMC-designer http://www.cetest.nl/features01.htm
>
>
>
>
>-Oorspronkelijk bericht-
>Van: Tommy H. Lee 
>Aan: Ing. Gert Gremmen 
>CC: EMC-PSTC 
>Datum: woensdag 8 april 1998 8:04
>Onderwerp: EN 55022 ITE Class A vs. Class B?
>
>
>>Hello Group
>>
>>I know that ITE can meet Class A ITE Limit.
>>The question is concerning European ITE EMI, Class A and B.
>>
>>Has anyone had or have known of problems with a Class A ITE
>>approval versus a Class B ITE approval.
>>
>>I have heard that Germany is requiring Class B on all equipment
>>entering into Germany (or they are planning on this).
>>
>>
>>Best regards.
>>Tommy
>>
>
>

Re: EN 55022 ITE Class A vs. Class B?

[Ing. Gert Gremmen]

Hello Andy, Tommy and group,

Yes Andy, you are fully right, but look at the following situation:

For emisson you insist on test according to A as it's for standard industry
EN 55022:1995
For immunity you need to fulfill the generic immunity standard using the
distinction
as meant in EN 50082-1 i.e. light industrial and residential. Class 2 is for
app. connected to dedicated un-shared mains supply systems exclusively.

Class 2 and Class A apparatus  are not allowed in Class 1 resp. Class B
environments. The otherway around is permitted.

I certainly would advise my customers to fulfill class B thereby making the
same distinction as in the generic standards between (heavy) industrial and
residential/light industrial.

Other product standards refer to the same situation f.i. EN 55103-1:1996
(which by the way still uses the distinction between 10 and 30 meters),
using class B limits for all but heavy industrial, and referring to EN
50082-1 for the definition.

Hope this gives some feed to the  discussion !



Regards,

Ing. Gert Gremmen


== Ce-test, Qualified testing ==
Consultants in EMC, Electrical safety and Telecommunication
Compliance tests for European standards and ce-marking
Member of NEC/IEC voting committee for EMC.
Our Web presence: http://www.cetest.nl
List of current harmonized standards http://www.cetest.nl/emc-harm.htm
15 great tips for the EMC-designer http://www.cetest.nl/features01.htm




-Oorspronkelijk bericht-
Van: Andy Griffin 
Aan: Ing. Gert Gremmen ; Tommy H. Lee

CC: t...@world.std.com ; emc-p...@ieee.org

Datum: woensdag 8 april 1998 15:00
Onderwerp: Re: EN 55022 ITE Class A vs. Class B?


>EN55022 is currently the relevant product family specification, hence the
>generic specification have no relevnace. EN55022 clearly states that class
>B is for equipment intended "primarily" for the residential/domestic
>environment and class A is for all other locations.
>
>Hence the Germany government [or any other] can not impose class B when
>EN55022 states class A !  Yes there is the problem of home office type
>situation but the specification does state "primarily" intended for home
use !
>
>What a manufacturer must be aware of is what are the demands of his
customers.
>
>If EN55022 changes or a different relevant specification is issued then
>this situation may obviously change !
>
>Regards Andy Griffin
>__
>
> EMiSoft Limited - Test and Assessment
>Software Solutions
>
>  Uk Tel+44 (0)468 188244
>  Uk Fax+44 (0)1793 522214
>  USA Tel/Fax   +408 356 1980
>  Email mailto:agrif...@emisoft.co.uk
>  Web   http://www.emisoft.co.uk
>  EMC Seminars  http://www.emisoft.co.uk/special/links/index.htm
>__
>
>
>At 09:10 8/4/98 +0200, Ing. Gert Gremmen wrote:
>>hello Tommy,
>>
>>
>>For ITE equipment you'd better perform to Class B, in the whole of the EU.
>>Class A is restricted to industrial locations only, and this is according
to
>>the EMC-directive very limited area.
>>
>>Garages, hospitals, offices and even standard light industry should be
>>classified acc. to B.
>>
>>
>>Difference between A and B is distance of testing. The limits for Class A
>>are valid at a testing distance of 30 meters, where Class B requires them
to
>>be met at 10 meters.
>>
>>Regards,
>>
>>Ing. Gert  Gremmen
>>== Ce-test, Qualified testing ==
>>Consultants in EMC, Electrical safety and Telecommunication
>>Compliance tests for European standards and ce-marking
>>Member of NEC/IEC voting committee for EMC.
>>Our Web presence: http://www.cetest.nl
>>List of current harmonized standards http://www.cetest.nl/emc-harm.htm
>>15 great tips for the EMC-designer http://www.cetest.nl/features01.htm
>>
>>
>>
>>
>>-Oorspronkelijk bericht-
>>Van: Tommy H. Lee 
>>Aan: Ing. Gert Gremmen 
>>CC: EMC-PSTC 
>>Datum: woensdag 8 april 1998 8:04
>>Onderwerp: EN 55022 ITE Class A vs. Class B?
>>
>>
>>>Hello Group
>>>
>>>I know that ITE can meet Class A ITE Limit.
>>>The question is concerning European ITE EMI, Class A and B.
>>>
>>>Has anyone had or have known of problems with a Class A ITE
>>>approval versus a Class B ITE approval.
>>>
>>>I have heard that Germany is requiring Class B on all equipment
>>>entering into Germany (or they are planning on this).
>>>
>>>
>>>Best regards.
>>>Tommy
>>>
>>
>>
>>
>

Job opportunity

[John Harrington]

Dear All

A vacancy exists within our EMC group for a Senior 
Engineer.  Applicants should be qualified to degree level in 
electronics engineering or related disipline and have experience in 
the fields of EMC, radio and telecommunications.
Duties will include technical supervision and test development within 
our UKAS accredited facility.

For further information contact myself or visit our web site


Closing date for applications is Friday, 24th April.

Applicants should apply in writing to:
Mrs J. Mulligan
KTL
Saxon Way
Priory Park West
Hull
HU13 9PB

Best regards
John Harrington
EMC Group Manager, KTL
Telephone : +44 (0) 1482 801801
Fax : +44 (0) 1482 801806
email : jharring...@ktl.co.uk

Re: EN 55022 ITE Class A vs. Class B?

[Andy Griffin]

EN55022 is currently the relevant product family specification, hence the
generic specification have no relevnace. EN55022 clearly states that class
B is for equipment intended "primarily" for the residential/domestic
environment and class A is for all other locations.  

Hence the Germany government [or any other] can not impose class B when
EN55022 states class A !  Yes there is the problem of home office type
situation but the specification does state "primarily" intended for home use !

What a manufacturer must be aware of is what are the demands of his customers.

If EN55022 changes or a different relevant specification is issued then
this situation may obviously change !

Regards Andy Griffin
__

 EMiSoft Limited - Test and Assessment  
Software Solutions

  Uk Tel+44 (0)468 188244
  Uk Fax+44 (0)1793 522214  
  USA Tel/Fax   +408 356 1980
  Email mailto:agrif...@emisoft.co.uk
  Web   http://www.emisoft.co.uk
  EMC Seminars  http://www.emisoft.co.uk/special/links/index.htm
__


At 09:10 8/4/98 +0200, Ing. Gert Gremmen wrote:
>hello Tommy,
>
>
>For ITE equipment you'd better perform to Class B, in the whole of the EU.
>Class A is restricted to industrial locations only, and this is according to
>the EMC-directive very limited area.
>
>Garages, hospitals, offices and even standard light industry should be
>classified acc. to B.
>
>
>Difference between A and B is distance of testing. The limits for Class A
>are valid at a testing distance of 30 meters, where Class B requires them to
>be met at 10 meters.
>
>Regards,
>
>Ing. Gert  Gremmen
>== Ce-test, Qualified testing ==
>Consultants in EMC, Electrical safety and Telecommunication
>Compliance tests for European standards and ce-marking
>Member of NEC/IEC voting committee for EMC.
>Our Web presence: http://www.cetest.nl
>List of current harmonized standards http://www.cetest.nl/emc-harm.htm
>15 great tips for the EMC-designer http://www.cetest.nl/features01.htm
>
>
>
>
>-Oorspronkelijk bericht-
>Van: Tommy H. Lee 
>Aan: Ing. Gert Gremmen 
>CC: EMC-PSTC 
>Datum: woensdag 8 april 1998 8:04
>Onderwerp: EN 55022 ITE Class A vs. Class B?
>
>
>>Hello Group
>>
>>I know that ITE can meet Class A ITE Limit.
>>The question is concerning European ITE EMI, Class A and B.
>>
>>Has anyone had or have known of problems with a Class A ITE
>>approval versus a Class B ITE approval.
>>
>>I have heard that Germany is requiring Class B on all equipment
>>entering into Germany (or they are planning on this).
>>
>>
>>Best regards.
>>Tommy
>>
>
>
>

Colorado Product Safety meeting notice for April 1998

[richardg]

 The Colorado Product Safety Technical Committee (CPSTC) will be 
 holding the April meeting Wednesday, April 15, 1998, starting at 
 6:30pm. The location will be at the UL Local Engineering Services 
 office in Boulder (next to the TUV-Product Service offices). Dave 
 Pederson of the UL Local office is hosting the meeting. Our guest 
 speaker will be Rich Tarsio of TUV Product Service. Guests are always 
 welcomed to our meetings. Please leave me a message it you are 
 planning to attend. Also, let me know if you need a map.
 
 Address:   UL office
 5541 Central Ave. Suite 105
 Boulder, CO 80301
 
 Agenda:1)  Updated CPSTC Directory will be available
 2) Attendance
 3) Bring ideas to the meeting.
 4) Discussion on possibly combining two of our meetings
 with the EMC Societies meetings. This is in response to that many of 
 our members who were once only safety are now getting into the EMC 
 safety.
 5) Guest speakers topic: Laser light evaluation for
 electrical equipment per IEC 825-1.
 
 
 If any of our members would rather send in their ideas for this April 
 meeting via the NET, in lieu of attending, please do so.
 
 Hope to see you all here!!
 
 
 Richard Georgerian
 Exabyte
 CPSTC Chairman
 tel.: 303-417-7537fax: 303-417-7829   e-mail: richa...@exabyte.com

Re: EN 55022 ITE Class A vs. Class B?

[TDonnelly]

The requirement for 30 meter testing was removed in EN 55022-1995. The
current distance requirement for both Class A and Class B is testing at 10
meters.

Tom Donnelly
EMC Engineer
Lucent Technologies
tdonne...@lucent.com

Re: EN 55022 ITE Class A vs. Class B?

[Charles Blackham TRdevmt-WS]

Whether you need class A or B is dependent upon the type of product that 
you are making:
ITE equipment intended for use in a domestic environment must meet class 
B, examples of such equipment would be PCs or battery operated portable 
equipment. 
Equipment that is not designed for use in a domestic environment only has 
to meet Class A.

The measurement distance is 10m for both Class A and Class B

Further information can be found in Sections 4 and 6 of EN55022:1994.

regards
Charlie

Charlie Blackham
Senior Approvals Engineer
Madge Networks Ltd.
x31592

Re: EN 55022 ITE Class A vs. Class B?

[Ing. Gert Gremmen]

hello Tommy,


For ITE equipment you'd better perform to Class B, in the whole of the EU.
Class A is restricted to industrial locations only, and this is according to
the EMC-directive very limited area.

Garages, hospitals, offices and even standard light industry should be
classified acc. to B.


Difference between A and B is distance of testing. The limits for Class A
are valid at a testing distance of 30 meters, where Class B requires them to
be met at 10 meters.

Regards,

Ing. Gert  Gremmen
== Ce-test, Qualified testing ==
Consultants in EMC, Electrical safety and Telecommunication
Compliance tests for European standards and ce-marking
Member of NEC/IEC voting committee for EMC.
Our Web presence: http://www.cetest.nl
List of current harmonized standards http://www.cetest.nl/emc-harm.htm
15 great tips for the EMC-designer http://www.cetest.nl/features01.htm




-Oorspronkelijk bericht-
Van: Tommy H. Lee 
Aan: Ing. Gert Gremmen 
CC: EMC-PSTC 
Datum: woensdag 8 april 1998 8:04
Onderwerp: EN 55022 ITE Class A vs. Class B?


>Hello Group
>
>I know that ITE can meet Class A ITE Limit.
>The question is concerning European ITE EMI, Class A and B.
>
>Has anyone had or have known of problems with a Class A ITE
>approval versus a Class B ITE approval.
>
>I have heard that Germany is requiring Class B on all equipment
>entering into Germany (or they are planning on this).
>
>
>Best regards.
>Tommy
>

Re: EMC Directive and Small DC motors

[Georg M. Dancau]

I agree with Robert, that you generally have to test your product.
Especially because
conducted disturbancies on the power supply lines could induce
disturbancies on
other signal and power supply lines in a system. Since one can expect
only conducted emissions you only had to do this test ( I assume you
have no electronics in your
product). The costs for such a test should be less than 800$.

Regards

George


Robert F. Martin ITS/QS-Box wrote:

> While it seems simple enough, the product is more than just a
> component.
> It can be considered an apparatus by EU standards because it has an
> intrinsic function. If the pump was restricted to a specific
> application, and would not work without it, you might get away without
>
> testing it. Because that is not the case, and they seem to have
> general
> purpose uses, then CE marking is appropriate if you sell into the EU.
> If
> you only sell to people (in the US) who incorporate the pumps into
> products which THEY sell in Europe, then any requirement for
> testing/marking is contractual, not regulatory.
>
> As for the problems experienced with previous testing, you should, in
> fact operate the motor with a battery. If the power supply was the
> source of the problems you had, they should go away. With regard to
> testing the new vendor, you are obligated to demonstrate compliance of
>
> the new motor. If you did not already follow the TCF route, it may be
> appropriate for you to consider it for these pumps. In that way, you
> may
> be able to do abbreviated tests when designs (or vendors) change.
> (TCFs
> do, however, generally have higher initial cost) Likewise, you may be
> able to do reduced tests if you add new products.
>
> Bob Martin
> ITS- Northeast
> r...@itsqs.com
>
> The opinions expressed are my own and not necessarily those of my
> employer.
>  --
> From: Russell, Ray
> To: 'IEEE PSTC'
> Subject: EMC Directive and Small DC motors
> Date: Tuesday, April 07, 1998 1:50PM
>
> Greetings,
>
> We manufacturer a small line of vacuum pumps that use very small (1/16
>
> hp) 12, 6 and 4 VDC motors. Just a DC motor and a pump. We have had
> some EMC testing performed to the EN 55014 and EN 55104 standards
> where there was some high conducted emissions that required a .1 uf
> capacitor across the positive and negative terminals. But I believe
> this is more of an issue of the power supply source, and lead lengths
> than the motor.
>
> These items are considered components because they need a power supply
>
> to operate. However, they could use battery power, but I assume that
> there would not be an emission problem in this mode.
>
> We now have another source for motors, and I have been asked to
> retest. I am very reluctant to spend thousands of dollars on testing,
> when I personally do not understand the benefit or risk. Of course the
>
> test house highly recommends additional testing. So I come seeking
> some advice or alternatives. Here are some of my thoughts:
>
> Since this is a component, could we just assign a declaration of
> incorporation?
>
> Are there any reasonable limits to what should be tested, as far as
> power/frequency/application in the directives?
>
> Is there a justifiable reason to test this product?
>
> Thank you for your consideration, any thoughts would be appreciated.
>
> Ray Russell
>
> ray_russ...@gastmfg.com



--
**
* Dr. Georg M. Dancau *  HAUNI MASCHINENBAU AG   *
* g.m.dan...@ieee.org *  Manager EMC Lab *
* TEL: +49 40 7250 2102   *  Kampchaussee 8..32  *
* FAX: +49 40 7250 3801   *  21027 Hamburg, Germany  *
**
* home: Tel: +49 4122 99451   *  Hauptstr. 60a   *
*   Fax: +49 4122 99454   *  25492 Heist, Germany*
**

EN 55022 ITE Class A vs. Class B?

[Tommy H. Lee]

Hello Group

I know that ITE can meet Class A ITE Limit.
The question is concerning European ITE EMI, Class A and B.

Has anyone had or have known of problems with a Class A ITE
approval versus a Class B ITE approval.  

I have heard that Germany is requiring Class B on all equipment 
entering into Germany (or they are planning on this).


Best regards.
Tommy

Used RF Shielded Enclosure

[Specpro463]

We currently have available a standing 10'x 20'x 10' high modular RF shielded
enclosure in Connecticut. Does anyone on the East Coast have a requirement for
a reasonably priced enclosure? We will dismantle enclosure, move to your site,
reassemble (reconfigured if required), and recertify the room.  We are also in
the market for other used enclosures in good condition.

Please call or e-mail.

Frank M. Rose
President
SPECIALTY PRO-SERV, INC.
250 Brinsmayd Avenue
Stratford, CT 06497-1356
(203) 378-8495
(203) 380-2999 FAX