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Publication details

Publication CODE Title
IEC 61000-3-12:2011+AMD1:2021 CSV (2021-06) ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 3-12: LIMITS - LIMITS FOR HARMONIC CURRENTS PRODUCED BY EQUIPMENT CONNECTED TO PUBLIC LOW-VOLTAGE SYSTEMS WITH INPUT CURRENT >16 A AND ' 75 A PER PHASE
 
Price Excl. VAT Total number of pages, tables and drawings
234.00 € 54.
Description
IEC 61000-3-12:2011+A1:2021 deals with the limitation of harmonic currents injected into the public supply system. The limits given in this International Standard are applicable to electrical and electronic equipment with a rated input current exceeding 16 A and up to and including 75 A per phase, intended to be connected to public low-voltage a.c. distribution systems of the following types:
- nominal voltage up to 240 V, single-phase, two or three wires;
- nominal voltage up to 690 V, three-phase, three or four wires;
- nominal frequency 50 Hz or 60 Hz. Other distribution systems are excluded. The limits given in this edition apply to equipment when connected to 230/400 V, 50 Hz systems. This standard applies to equipment intended to be connected to low-voltage systems interfacing with the public supply at the low-voltage level. It does not apply to equipment intended to be connected only to private low-voltage systems interfacing with the public supply only at the medium- or high-voltage level. This standard defines:
a) requirements and emission limits for equipment;
b) methods for type tests and simulations. Tests according to this International Standard are type tests of complete pieces of equipment. Conformity with this standard can also be determined by validated simulations. This second edition cancels and replaces the first edition published in 2004 and constitutes a technical revision. The significant technical changes with respect to the previous edition are:
- the replacement of the reference fundamental current I1 by the reference current Iref for the calculation of emission limits;
- a new added table of current emission limits (Table 5);
- a new added annex (Annex A) to define test conditions for some types of equipment;
- Deletion of the former Annexes B (Approximate interpolation formulas) and D (Information on the PWHD factor).
Class  C990  (IEC PUBLICATIONS IEC PUBLICATIONS)
Available files
EN/FR version

Status
Status IEC PUBLICATION
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Origin
Committee TC 77/SC 77A
LOW FREQUENCY PHENOMENA (EMC)
Responsible Ir DELENS Marc
Approval
BEC Approval 2021-06-04
ICS-Code (International Standards Classification) 33.100.10
NBN Status New
IEC publication date 2021-06-04
IEC file modification date 2021-06-04
IEC last modification date 2021-06-04