Depends on the class of your equipment. No limits apply to class D equipment
under 75W (reduced to 50W four years after implementation date of the standard).
I believe class A, class B, and class C equipment do need to meet their
respective limits regardless of power as long as the input current per phase is
less than or equal to 16A as described in the standard's scope.
Of course A14 to the standard changes the definition of class D. You may have
equipment that is class D today but it becomes by default class A equipment
under this amendment.
"Craig Hensley" <hens...@iomega.com> on 01/03/2001 12:49:32 PM
Please respond to "Craig Hensley" <hens...@iomega.com>
To: emc-p...@ieee.org
cc: "Craig Hensley" <hens...@iomega.com> (bcc: Jim Hulbert/MSD/US/PBI)
Subject: EN61000-3-2 / EN61000-3-3 (Again)
This is probably a gross over-simplification, but I want to make sure I
understand the applicability of the new EN61000-3-2 (harmonic) and EN61000-3-3
(flicker) standards.
In reviewing the standards as well as previous communications within this group
I have arrived at the following conclusions.
EN61000-3-2 - Applies only to products with input power higher than 75W. Per
paragraph 7.4 of the standard, "no limits apply for equipment with an active
input power up to and including 75W".
EN61000-3-3 - Per paragraph 6.1 of the standard, "Tests shall not be made on
equipment which is unlikely to produce significant voltage fluctuations or
flicker".
Per an earlier e-mail from Gert Gremmen "unlikely" means that the equipment has
no variations in power supply current, or variations that cause voltage
fluctuations below the most stringent level in the standard. In general: -
Equipment with a power consumption below 100 VA max is unlikely to create
flicker problems, and, - Most equipment under 500VA will not create flicker
problems.
You could actually do a simple check the 230V mains side to see if the product
causes dips or fluctuations. If there are no dips there is no need to measure.
If a product does not fall under the applicability of EN61000-3-2 or EN61000-3-3
per the above explanations, what is the consensus regarding referencing these
standards on the DoC? Based on some earlier e-mails, it appears that a few of
you are going to add these to the DoC. This should take away questions that may
arise with DoC's that do not contain these standards. Based on this approach,
couldn't you also reference other non-applicable harmonized standards?
Recently I have been asked to sign a document from one of our distributors that
states all product provided after 01/01/01 will comply with EN61000-3-2 and
EN61000-3-3. However, my products fall outside the scope of these standards
(per above explanations), so what I am wondering is can I say I comply because I
have evaluated the standards and found they are not applicable. I face the same
dilemma on the DoC's. Is it reasonable to claim compliance via
non-applicability?
I apologize for the conversational tone of this e-mail, but I am interested in
any other views and opinions.
Best Regards for 2001,
Craig Hensley
Iomega Corp.
Roy, UT
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