Bob: The standard is not clear in this area just as it is nebulous in many other areas. Since IEC555 is in force now but it is a withdrawn standard. EN 61000-3-2 tales its place for home products. However EN61000-3-2 does not take effect until 2001. My guess is for home products either 555-2 or 61000-3-2 must be used. It does not matter because the same extra stringent limits and procedures are in both. If one takes the position the current standard takes precedent over the withdrawn standard we come back to 61000-3-2. Since the 75 Watt to 50 Watt waiting period is over for all products covered by 61000-3-2, one can deduce the 50 Watt lower limit now applies.
One can also reason since 555 has been withdrawn and 61000 is not effective until 2001 there is no harmonic emissions standard. Your decision. Dave George Unisys -----Original Message----- From: [email protected] [mailto:[email protected]] Sent: Friday, September 10, 1999 5:08 PM To: George, David L; [email protected] Subject: RE: Limits for Class D equipment in EN61000-3-2 It is my understanding that the delay period is over for the IEC version. It is also my understanding that the 4 year period for the EN version does not start until 1 Jan. 2001. Bob Heller ================================ "George, David L" <[email protected]> on 09/10/99 01:25:20 PM Please respond to "George, David L" <[email protected]> To: Benoit Nadeau <[email protected]> [email protected] cc: (bcc: Robert E. Heller/US-Corporate/3M/US) Subject: RE: Limits for Class D equipment in EN61000-3-2 Nadeau: The delay period is complete and the standard applies to products 50 Watts and above. However the actual application of the standard is up to the each country and how it is adopted. For example, in Europe the standard applies to only some products until 1 January 2001. On this date it will apply to all products covered by the standard. Dave George -----Original Message----- From: Benoit Nadeau [mailto:[email protected]] Sent: Tuesday, September 07, 1999 10:31 PM To: [email protected] Subject: Limits for Class D equipment in EN61000-3-2 Bonjour de Montreal, Section 7.4 of the EN61000-3-2 Standards specifies that : The limits given in table 3 are valid for all applications having an active input power > 75 W. No limit apply for equipment with an active input power up to and including 75 W. This lower limit of 75 W will be reduced to 50 W four year after the implementation date of this standard. Is this 4 year delay passed since the latest date by which the EN has to be implemented at national level (dop) was 1995-07-01 ? Please comment, -------------------------------------------------------------------------- Benoit Nadeau, ing. M.ing. (P.Eng., M.Eng) Gerant du Groupe Conformite (Conformity Group Manager) Matrox -------------------------------------------------------------------------- 1055, boul. St-Regis Dorval (Quebec) Canada H9P 2T4 Tel : (514) 822-6000 (x2475) FAX : (514) 822-6275 Internet : [email protected], --------- This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to [email protected] with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to [email protected], [email protected], [email protected], or [email protected] (the list administrators). --------- This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to [email protected] with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to [email protected], [email protected], [email protected], or [email protected] (the list administrators).
