Re: EN 61000-4-4 Amd 2

2003-01-15 Thread John Woodgate 

I read in !emc-pstc that Sam Wismer swis...@acstestlab.com wrote (in
001f01c2bcb1$04fce0f0$0b01000a@sam) about 'EN 61000-4-4 Amd 2' on Wed,
15 Jan 2003:

Normally with a new standard, all equipment still in production on or
after the date an existing standard is withdrawn, for which the
equipment was tested, and a revised one goes into force, the equipment
must be shown to comply with the new standard. 

Does this also apply to equipment that was evaluated with a burst
generator that does not meet the new verification requirements of Amd 2
of the revised -4-4 standard?

What does the Generic or Product-family standard that calls up the Basic
standard say? If it doesn't call up Amendment A2, you don't need to re-
test, unless it has an *undated* reference to EN 61000-4-4. In any case,
the unamended (by Amdt A2) standard doesn't become inadmissible until
2004-07-01.

You amy also take into account the consequences of the generator not
conforming to Amendment 2. If those consequences can be shown to be
insignificant, and you keep a record of that assessment, you don't need
to re-test.
-- 
Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk 
Interested in professional sound reinforcement and distribution? Then go to 
http://www.isce.org.uk
PLEASE do NOT copy news posts to me by E-MAIL!


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EN 61000-4-4 Amd 2

2003-01-15 Thread Sam Wismer 


Normally with a new standard, all equipment still in production on or
after the date an existing standard is withdrawn, for which the
equipment was tested, and a revised one goes into force, the equipment
must be shown to comply with the new standard. 

Does this also apply to equipment that was evaluated with a burst
generator that does not meet the new verification requirements of Amd 2
of the revised -4-4 standard?

 
 
Kind Regards,
 
 
Sam Wismer
Engineering Manager
ACS, Inc.
 
*Tel: (770) 831-8048
*Fax: (770) 831-8598
:Web:  www.acstestlab.com
*swis...@acstestlab.com
 


From: owner-emc-p...@majordomo.ieee.org
[mailto:owner-emc-p...@majordomo.ieee.org] On Behalf Of John Woodgate
Sent: Saturday, January 11, 2003 8:43 AM
To: emc-p...@majordomo.ieee.org
Subject: Re: IEC vs. EN


I read in !emc-pstc that Sam Wismer swis...@acstestlab.com wrote (in
001001c2b8c4$7df00d20$0b01000a@sam) about 'IEC vs. EN' on Fri, 10 Jan
2003:
Case in point:  EN 61000-4-4 Amd. 2 DoW for the superseded standard
is 7/04 
however EN55024 calls out IEC 61000-4-4.

No, it only appears to. Because it's a clone of CISPR 24, its Normative
References clause refers to IEC standards. But Annex ZA (not very
clearly) replaces those references by the corresponding EN.


  Is IEC 61000-4-4 amd. 2 in force 
now and should it be used now when EN55024 is the applied standard?


No. The EN transition period applies. Industry cannot work with
standards that come into effect instantaneously and without prior
notice.
-- 
Regards, John Woodgate, OOO - Own Opinions Only.
http://www.jmwa.demon.co.uk 
Interested in professional sound reinforcement and distribution? Then go
to 
http://www.isce.org.uk
PLEASE do NOT copy news posts to me by E-MAIL!


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