SIST EN IEC 61000-3-2:2019/A1:2021

Electromagnetic compatibility (EMC) - Part 3-2: Limits - Limits for harmonic current emissions (equipment input current ≤16 A per phase)

The contents of the Interpretation sheet of August 2021 have been included in this copy. Apply to the English version only.

Elektromagnetische Verträglichkeit (EMV) - Teil 3-2: Grenzwerte - Grenzwerte für Oberschwingungsströme (Geräte-Eingangsstrom ≤ 16 A je Leiter)

Compatibilité électromagnétique (CEM) - Partie 3-2 : Limites - Limites pour les émissions de courant harmonique (courant appelé par les appareils = 16 A par phase)

Le contenu de la feuille d'interprétation d'août 2021 a été pris en considération dans cet exemplaire et s'applique à la version anglaise uniquement.

Elektromagnetna združljivost (EMC) - 3-2. del: Mejne vrednosti - Mejne vrednosti za oddajanje harmonskih tokov (vhodni tok opreme do vključno 16 A na fazo) - Dopolnilo A1

General Information

• Status: Published
• Publication Date: 09-May-2021
• ICS: 33.100.10 - Emission
• Technical Committee: EMC - Electromagnetic compatibility
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 05-May-2021
• Due Date: 10-Jul-2021
• Completion Date: 10-May-2021
• Directive: 2014/30/EU - Directive 2014/30/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to electromagnetic compatibility (recast)
• Directive: 2014/53/EU - Directive 2014/53/EU of The European Parliament and of the Council of 16 April 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of radio equipment and repealing Directive 1999/5/EC
• Mandate: M/536 - [C(2015)536] Standardisation request as regards radio equipment in support of Directive 2014/53/EU
• Mandate: M/552 - [C(2016) 7641 final] Standardisation request as regards harmonised standards in support of Directive 2014/30/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to electromagnetic compatibility
• Ref Project: EN IEC 61000-3-2:2019/A1:2021 - Electromagnetic compatibility (EMC) - Part 3-2: Limits - Limits for harmonic current emissions (equipment input current ≤16 A per phase)

Relations

• Amends: SIST EN IEC 61000-3-2:2019 - Electromagnetic compatibility (EMC) - Part 3-2: Limits - Limits for harmonic current emissions (equipment input current ≤ 16 A per phase)
• Effective Date: 01-Jun-2021

Overview

EN IEC 61000-3-2:2019/A1:2021 is the CENELEC-adopted amendment to the EMC standard that sets limits for harmonic current emissions for electrical and electronic equipment with an input current ≤ 16 A per phase. This amendment incorporates the August 2021 Interpretation Sheet into the English version and updates scopes, definitions and classification rules-notably clarifying the inclusion of some arc welding equipment and detailed rules for lighting-related products.

Key topics and requirements

• Scope and applicability
  • Limits apply to equipment whose input current is ≤ 16 A per phase.
  • The amendment explicitly includes non‑professional arc welding equipment rated up to 16 A; higher-rated welding equipment is excluded (see IEC 61000-3-12 for evaluation).
  • The update applies to the English version only for the included interpretation sheet.
• Definitions and classification
  • Updated definitions for lamp, integrated lamp, luminaire, lighting equipment, lighting control gear, dimmer, external power supply (EPS) and related terms.
  • Clarified what constitutes lighting equipment (inclusions and exclusions) and the classification of equipment into EMC classes (e.g., Class D lighting items).
• Measurement and calculation guidance
  • References measurement methods to IEC 61000-4-7 for harmonics and interharmonics instrumentation and to other normative references as updated.
  • Defines active input power measurement intervals and introduces terms such as partial odd harmonic current (POHC) with calculation details in annexes.
• Control methods and special cases
  • Updates rules for control methods (e.g., asymmetrical controls and half-wave rectification) and for the classification/assessment of external power supplies (EPS) based on intended application.

Practical applications and users

Who uses EN IEC 61000-3-2:2019/A1:2021:

• EMC engineers and test laboratories performing harmonic emission testing and certification.
• Product designers and manufacturers of lighting equipment, lamps, integrated lamps, luminaires, EPS, household appliances and small welding equipment (≤16 A).
• Compliance and regulatory teams preparing technical documentation for CE marking and market access in CENELEC countries.
• Utilities and installation professionals concerned with power quality and harmonic distortion mitigation.

Why it matters:

• Ensures products meet EMC limits for harmonic current emissions, reducing grid distortion and improving power quality.
• Provides harmonised criteria and updated definitions for designers to meet current European requirements.

Related standards

• IEC 61000-4-7 – Testing and measurement techniques for harmonics and interharmonics
• IEC 61000-3-12 – Harmonic limits for equipment >16 A (referenced for excluded welding equipment)
• Product safety and application standards referenced: IEC 60335‑2‑14, IEC 60335‑2‑24, IEC 60598‑2‑17, and others listed in the amendment’s normative annex.

Keywords: EN IEC 61000-3-2:2019/A1:2021, harmonic current emissions, EMC limits, equipment input current ≤16 A, lighting equipment, external power supply, IEC 61000-4-7, CENELEC compliance.

Standards Content (Sample)

SLOVENSKI STANDARD
01-junij-2021
Elektromagnetna združljivost (EMC) - 3-2. del: Mejne vrednosti - Mejne vrednosti
za oddajanje harmonskih tokov (vhodni tok opreme do vključno 16 A na fazo) -
Dopolnilo A1
Electromagnetic compatibility (EMC) - Part 3-2: Limits - Limits for harmonic current
emissions (equipment input current ≤16 A per phase)
Compatibilité électromagnétique (CEM) - Partie 3-2 : Limites - Limites pour les émissions
de courant harmonique (courant appelé par les appareils = 16 A par phase)
Ta slovenski standard je istoveten z: EN IEC 61000-3-2:2019/A1:2021
ICS:
33.100.10 Emisija Emission
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 61000-3-2:2019/A1

NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2021
ICS 33.100.10
English Version
Electromagnetic compatibility (EMC) - Part 3-2: Limits - Limits for
harmonic current emissions (equipment input current ≤16 A per
phase)
(IEC 61000-3-2:2018/A1:2020)
Compatibilité électromagnétique (CEM) - Partie 3-2: Limites Elektromagnetische Verträglichkeit (EMV) - Teil 3-2:
- Limites pour les émissions de courant harmonique Grenzwerte - Grenzwerte für Oberschwingungsströme
(courant appelé par les appareils ≤ 16 A par phase) (Geräte-Eingangsstrom ≤ 16 A je Leiter)
(IEC 61000-3-2:2018/A1:2020) (IEC 61000-3-2:2018/A1:2020)
This amendment A1 modifies the European Standard EN IEC 61000-3-2:2019; it was approved by CENELEC on 2020-08-18. CENELEC
members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this amendment the
status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This amendment exists in three official versions (English, French, German). A version in any other language made by translation under the
responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as
the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2021 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 61000-3-2:2019/A1:2021 E

European foreword
The text of document 77A/1077/FDIS, future IEC 61000-3-2/A1, prepared by SC 77A "EMC - Low
frequency phenomena" of IEC/TC 77 "Electromagnetic compatibility" was submitted to the IEC-
CENELEC parallel vote and approved by CENELEC as EN IEC 61000-3-2:2019/A1:2021.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2021-10-09
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2024-04-09
document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
This document has been prepared under a mandate given to CENELEC by the European Commission
and the European Free Trade Association.
Endorsement notice
The text of the International Standard IEC 61000-3-2:2018/A1:2020 was approved by CENELEC as a
European Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards
indicated:
IEC 61000-2-2 NOTE Harmonized as EN 61000-2-2
IEC 61000-3-12 NOTE Harmonized as EN 61000-3-12
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
NOTE 1 Where an International Publication has been modified by common modifications, indicated by (mod),
the relevant EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is
available here: www.cenelec.eu.
Replace Annex ZA of EN IEC 61000-3-2:2019 by the following one:
Publication Year Title EN/HD Year
IEC 60050-161 1990 International Electrotechnical Vocabulary. - -
Chapter 161: Electromagnetic compatibility
IEC 60107-1 1997 Methods of measurement on receivers for EN 60107-1 1997
television broadcast transmissions - Part 1:
General considerations - Measurements at
radio and video frequencies
IEC 60155 1993 Glow-starters for fluorescent lamps EN 60155 1995
IEC 60268-1 1985 Sound system equipment. Part 1: General HD 483.1 S2 1989
+ A1 1988  - -
+ A2 1988  - -
IEC 60268-3 2018 Sound system equipment - Part 3: EN IEC 60268-3 2018
Amplifiers
IEC 60335-2-2 2019  - -
IEC 60335-2-14 2016 Household and similar electrical appliances EN 60335-2-14 2017
(mod) - Safety - Part 2-14: Particular
requirements for kitchen machines
IEC 60335-2-24 2010 Household and similar electrical appliances EN 60335-2-24 2010
- Safety - Part 2-24: Particular
requirements for refrigerating appliances,
ice-cream appliances and ice makers
+ A1 (mod) 2012  + A1 2019
+ A2 2017  + A2 2019
- -  + A11 2020
IEC 60335-2-79 2016 Household and similar electrical appliances - -
- Safety - Part 2-79: Particular
requirements for high pressure cleaners
and steam cleaners
Publication Year Title EN/HD Year
IEC 60598-2-17 2012 Luminaires - Part 2-17: Particular EN IEC 60598-2-17 2012
requirements - Luminaires for stage
lighting, television and film studios (outdoor
and indoor)
+ A1 2015  - -
IEC 60974-1 2017 Arc welding equipment - Part 1: Welding EN IEC 60974-1 2018
power sources
IEC 61000-4-7 2002 Electromagnetic compatibility (EMC) - Part EN 61000-4-7 2002
4-7: Testing and measurement techniques
- General guide on harmonics and
interharmonics measurements and
instrumentation, for power supply systems
and equipment connected thereto
+ A1 2008  + A1 2009
IEC 62756-1 2015 Digital load side transmission lighting EN 62756-1 2015
control (DLT) - Part 1: Basic requirements

IEC 61000-3-2 ®
Edition 5.0 2020-07
INTERNATIONAL
STANDARD
AMENDMENT 1
Electromagnetic compatibility (EMC) –

Part 3-2: Limits – Limits for harmonic current emissions (equipment input

current ≤16 A per phase)
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.100.10 ISBN 978-2-8322-8585-5

– 2 – IEC 61000-3-2:2018/AMD1:2020
© IEC 2020
FOREWORD
This amendment has been prepared by subcommittee 77A: EMC – Low frequency phenomena,
of IEC technical committee 77: Electromagnetic compatibility.
The text of this amendment is based on the following documents:
FDIS Report on voting
77A/1077/FDIS 77A/1084/RVD
Full information on the voting for the approval of this amendment can be found in the report on
voting indicated in the above table.
The committee has decided that the contents of this amendment and the base publication will
remain unchanged until the stability date indicated on the IEC website under
"http://webstore.iec.ch" in the data related to the specific publication. At this date, the
publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
_____________
INTRODUCTION
Replace, under “Part 2: Environment”, the first line “Description levels” with the following:
Description of the environment
1 Scope
Replace the fourth paragraph with the following:
Arc welding equipment, which is not professional equipment, with a rated input current up to
and including 16 A per phase, is included in the scope of this document. All other arc welding
equipment is excluded from the scope of this document; however, the harmonics emission can
be evaluated using IEC 61000-3-12 and relevant installation restrictions.
2 Normative references
Replace the references with the following:
IEC 60050-161:1990, International Electrotechnical Vocabulary (IEV) – Part 161:
Electromagnetic compatibility (available at www.electropedia.org)
IEC 60107-1:1997, Methods of measurement on receivers for television broadcast
transmissions – Part 1: General considerations – Measurements at radio and video frequencies

IEC 61000-3-2:2018/AMD1:2020 – 3 –
© IEC 2020
IEC 60155:1993, Glow-starters for fluorescent lamps
IEC 60268-1:1985, Sound system equipment – Part 1: General
IEC 60268-1:1985/AMD1:1988
IEC 60268-1:1985/AMD2:1988
IEC 60268-3:2018, Sound system equipment – Part 3: Amplifiers
IEC 60335-2-2:2019, Household and similar electrical appliances – Safety – Part 2-2: Particular
requirements for vacuum cleaners and water-suction cleaning appliances
IEC 60335-2-14:2016, Household and similar electrical appliances – Safety – Part 2-14:
Particular requirements for kitchen machines
IEC 60335-2-24:2010, Household and similar electrical appliances – Safety – Part 2-24:
Particular requirements for refrigerating appl iances, ice-cream appliances and ice makers
IEC 60335-2-24:2010/AMD1:2012
IEC 60335-2-24:2010/AMD2:2017
IEC 60335-2-79:2016, Household and similar electrical appliances – Safety – Part 2-79:
Particular requirements for high pressure cleaners and steam cleaners
IEC 60598-2-17:2012, Luminaires – Part 2-17: Particular requirements – Luminaires for stage
lighting, television and film studios (outdoor and indoor)
IEC 60598-2-17:2012/AMD1:2015
IEC 60974-1:2017, Arc welding equipment – Part 1: Welding power sources
IEC 61000-4-7:2002, Electromagnetic compatibility (EMC) – Part 4-7: Testing and
measurement techniques – General guide on harmonics and interharmonics measurements and
instrumentation, for power supply systems and equipment connected thereto
IEC 61000-4-7:2002/AMD1:2008
IEC 62756-1:2015, Digital load side transmission lighting control (DLT) – Part 1: Basic
requirements
3 Terms and definitions
Replace definition 3.2 including Note 1 to entry with the following:
3.2
lamp
light source provided with at least one cap
Note 1 to entry: For products that have the same physical characteristics as lamps for general lighting but that are
built to emit optical radiation mainly in the IR or UV spectrum, the term IR lamp or UV lamp is often used.
[SOURCE: IEC 60050-845:2020, 845-27-008, modified – existing notes 2 and 3 have been
removed, the term “electric” has been removed from the term and the definition]
Replace definition 3.3 with the following:
3.3
integrated lamp
electric lamp which cannot be dismantled without being permanently damaged, incorporating
lighting control gear, and all additional elements necessary for starting and stable operation of
the light source, designed for direct connection to the supply voltage

– 4 – IEC 61000-3-2:2018/AMD1:2020
© IEC 2020
[SOURCE: IEC 60050-845:2020, 845-27-009]
Replace definition 3.4 with the following:
3.4
luminaire
apparatus which distributes, filters or transforms the light transmitted from at least one source
of optical radiation and which includes, except the sources themselves, all the parts necessary
for fixing and protecting the sources (IEV 845-21-032) and, where necessary, circuit auxiliaries
together with the means for connecting them to the power supply
[SOURCE: IEC 60050-845: 845-30-001:2020, modified – existing note has been removed]
Replace definition 3.6 with the following:
3.6
void
Replace definition 3.7 with the following and delete Note 1 to entry:
3.7
active input power
mean value of the instantaneous power, taken over 10 (50 Hz systems) or 12 (60 Hz systems)
fundamental periods and measured in accordance with IEC 61000-4-7:2002 and IEC 61000-4-
7:2002/AMD1:2008 at the input supply terminals of the equipment under test
3.12
partial odd harmonic current
Add the following new note to entry:
Note 1 to entry: Details for the calculation of the POHC are given in Annex C.
Renumber the existing Note 1 to entry as Note 2 to entry.
Replace definition 3.13 including note 1 to entry with the following:
3.13
lighting equipment
equipment with a primary function of generating and/or regulating and/or distributing the
radiation emitted by a light source
Note 1 to entry: See also 5.2.
Replace definition 3.19 including all notes to entry with the following:
3.19
lighting control gear
unit inserted between the power supply and at least one light source, which serves to supply
the light source(s) with the voltage and/or current required for its (their) intended operation, and
which can consist of one or more separate components.
Note 1 to entry: The lighting control gear can include means for igniting, dimming, correcting the power factor and
suppressing radio interference, and further control functions.
Note 2 to entry: The lighting control gear can be partly or totally integrated in the light source.
Note 3 to entry: For the purposes of this document, independent phase control dimmers as defined in 3.23 and 3.24
are not considered to be lighting control gear.

IEC 61000-3-2:2018/AMD1:2020 – 5 –
© IEC 2020
Replace definition 3.20 with the following.
3.20
digital load side transmission lighting control device
DLT control device
device to control lighting parameters of electronic lighting equipment, such as light level and
light colour, using data transmission over its load side mains wiring in accordance with
IEC 62756-1:2015
Note 1 to entry: A DLT control device is wired like a phase control dimmer, but does not directly make the supply
power delivered to the connected dedicated lighting equipment vary. It transmits digital signals over the power cable
on the load side to the dedicated lighting equipment, which contains means for receiving and interpreting control
signals as well as built-in means for dimming, colour variation and other operating features.
Note 2 to entry: This note applies to the French language only.
Replace definition 3.21 with the following:
3.21
dimmer
device for varying the luminous flux from light sources
[SOURCE: IEC 60050-845: 845-28-063:2020, modified – the existing note has been removed]
Replace definition 3.26 with the following:
3.26
professional luminaire for stage lighting and studios
luminaire (outdoor or indoor) for stage lighting or for television, film or photographic studios
within the scope of IEC 60598-2-17:2012 and IEC 60598-2-17:2012/AMD1:2015 and which is
professional equipment
Add the following new terms:
3.27
light source
surface or object emitting light
[SOURCE: IEC 60050-845:2020, 845-27-001, modified – the existing notes have been removed]
3.28
instructions for use
information that is provided by manufacturers or distributors for users of the product
3.29
external power supply
EPS
equipment which converts power supplied by the mains into power at a different voltage, which
has its own physical enclosure, and which is intended for use with separate equipment that
constitutes the load
Note 1 to entry: The output voltage of the EPS can be either AC or DC.
Note 2 to entry: The output of the EPS can be either detachable from, or permanently connected to, the separate
equipment being powered.
Note 3 to entry: See also 5.3.

– 6 – IEC 61000-3-2:2018/AMD1:2020
© IEC 2020
5 Classification of equipment
5.1 General
Replace the first sentence under Class D with the following:
Equipment having a specified power less than or equal to 600 W according to 6.3.2, of the
following types:
5.2 Description of lighting equipment
Replace the existing text with the following:
In this document, lighting equipment as defined in 3.13 includes:
– light sources, lamps, integrated lamps and luminaires;
– the lighting part of multi-function equipment where one of the primary functions of this is
illumination;
– independent lighting control gear;
– ultraviolet (UV) and infrared (IR) radiation equipment;
– illuminated advertising signs;
– independent dimmers, other than phase control types, for lighting equipment;
– DLT control devices.
In this document, lighting equipment as defined in 3.13 excludes:
– lighting devices built in equipment with another primary purpose, such as photocopiers,
overhead projectors and slide projectors, or employed for scale illumination or indication
purposes;
– household appliances whose primary function is not for generating and/or regulating and/or
distributing optical radiation, but which contain one or more light sources with or without a
separate switch (e.g. a range hood with a built-in light source);
– independent phase control dimmers;
– professional luminaires for stage lighting and studios;
– emergency luminaires that emit light only during emergency mode;
– professional appliances whose primary function is to present lighting devices for exhibition
purposes;
– mechanical switches and relays, and other simple devices providing on/off control only, that
do not produce distorted currents.

Add, after 5.2, the following new subclause:
5.3 External power supplies
EPS shall be classified according to the types of equipment they are designated for, as specified
in the instructions for use.
NOTE See also Clause B.17.
6.2 Control methods
Replace the existing text with the following:

IEC 61000-3-2:2018/AMD1:2020 – 7 –
© IEC 2020
Asymmetrical controls according to IEC 60050-161:1990, 161-07-12, and half-wave rectification
directly on the mains supply may only be used where:
a) they are the only practical solution permitting the detection of unsafe conditions, or
b) they control an active input power less than or equal to 100 W, or
c) they are operated in a portable equipment fitted with a two-core flexible cord which is
intended for use for a short period of time, i.e. for a few minutes only.
If at least one of these three conditions is fulfilled, half-wave rectification may be used for any
purpose, whereas asymmetrical controls may only be used for the control of motors.
NOTE 1 Equipment which can fulfil condition c) includes, but is not limited to, hair dryers, electrical kitchen
appliances and portable tools.
NOTE 2 When using asymmetrical controls or half-wave rectification under the above circumstances, the input
current has a DC component that can disturb certain types of protection devices in case of an earth fault. See
IEC TR 60755.
Even though asymmetrical controls and half-wave rectification are permitted under the
conditions given above, equipment shall still comply with the harmonic requirements of this
document.
In general, symmetrical controls may be used for any application and without particular
restrictions. However, symmetrical control methods which can produce integer harmonics of the
th
order in the mains input current may be used to control the
mains frequency up to the 40
power supplied to heating elements only if at least one of the following restrictions is met:
• the full sine-wave active input power of these heating elements is lower than or equal to
200 W, or
• the limits of Table 3 are not exceeded when testing with these heating elements active.
Such symmetrical control methods are also allowed for professional equipment provided that
either one of the above conditions is fulfilled, or the relevant emission limits according to
Clause 7 are not exceeded when tested at the supply input terminals and in addition both the
following conditions are fulfilled:
– it is necessary to control precisely the temperature of a heater whose thermal time constant
is less than 2 s, and
– there is no other technique economically available.
Professional equipment whose primary purpose, considered as a whole, is not for heating, shall
be tested against the relevant emission limits according to Clause 7.
NOTE 3 An example of a product whose primary purpose, considered as a whole, is not for heating is a photocopier,
whereas a cooker is considered to have heating as its primary purpose.
For domestic equipment used for a short time (e.g. hair dryers) the above restrictions for
symmetrical control of heating elements shall not apply and the limits for Class A shall apply
instead.
For the application of this document diode rectification is not considered to be a form of control.
6.3.2 Measurement procedure
In the second paragraph replace the first dash with the following:
– for each harmonic order, measure the 1,5 s smoothed RMS harmonic current in each
discrete Fourier transform (DFT) time window as defined in IEC 61000-4-7:2002 and
IEC 61000-4-7:2002 /AMD1:2008;

– 8 – IEC 61000-3-2:2018/AMD1:2020
© IEC 2020
Replace the third paragraph with the following and delete the Note:
The value of the active input power to be used for the calculation of limits shall be determined
as follows:
– measure the 1,5 s smoothed active input power in each DFT time window;
– determine the maximum of the measured values of active input power from the DFT time
windows over the entire duration of the test.
Replace the last paragraph with the following:
For Class C equipment, the fundamental current specified by the manufacturer shall be used
for the calculation of limits. The fundamental component of the current is measured and
specified by the manufacturer in the same way as the power is me
...