Arc welding equipment - Part 10: Electromagnetic compatibility (EMC) requirements

IEC 60974-10:2020 is available as IEC 60974-10:2020 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 60974-10:2020 is applicable to equipment for arc welding and allied processes, including power sources and ancillary equipment, for example wire feeders, liquid cooling systems, arc striking and stabilizing devices and chargers for battery powered equipment. This fourth edition cancels and replaces the third edition published in 2014 and its Amendment 1:2015. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- updated normative references;
- requirements for battery powered equipment;
- requirements for equipment combined with radio transmitters/receivers.

Matériel de soudage à l'arc - Partie 10: Exigences de compatibilité électromagnétique (CEM)

IEC 60974-10:2020 est disponible sous forme de IEC 60974-10:2020 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.
L'IEC 60974-10:2020 s’applique au matériel de soudage à l’arc et techniques connexes y compris les sources de courant de soudage et les matériels auxiliaires, tels que les dévidoirs, les systèmes de refroidissement par liquide, les dispositifs d’amorçage et de stabilisation de l’arc et les chargeurs de matériels alimentés par batteries. Cette quatrième édition annule et remplace la troisième édition parue en 2014 et son Amendement 1:2015. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
- références normatives mises à jour;
- nouvelles exigences relatives au matériel alimenté par batteries;
- nouvelles exigences relatives au matériel combiné à des émetteurs/récepteurs radioélectriques.

General Information

Status
Published
Publication Date
14-Apr-2020
Technical Committee
Current Stage
PPUB - Publication issued
Completion Date
15-Apr-2020
Ref Project

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IEC 60974-10
Edition 4.0 2020-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Arc welding equipment –
Part 10: Electromagnetic compatibility (EMC) requirements
Matériel de soudage à l’arc –
Partie 10: Exigences de compatibilité électromagnétique (CEM)
IEC 60974-10:2020-04(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 60974-10
Edition 4.0 2020-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Arc welding equipment –
Part 10: Electromagnetic compatibility (EMC) requirements
Matériel de soudage à l’arc –
Partie 10: Exigences de compatibilité électromagnétique (CEM)
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 25.160.30 ISBN 978-2-8322-8027-0

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 3 ----------------------
– 2 – IEC 60974-10:2020 © IEC 2020
CONTENTS

FOREWORD ........................................................................................................................... 5

1 Scope .............................................................................................................................. 7

2 Normative references ...................................................................................................... 7

3 Terms and definitions ...................................................................................................... 9

4 General test requirements ............................................................................................. 11

4.1 Test conditions ..................................................................................................... 11

4.2 Measuring instruments .......................................................................................... 11

4.3 Artificial mains network ......................................................................................... 12

4.4 Voltage probe ....................................................................................................... 12

4.5 Antennas .............................................................................................................. 12

4.6 Coupling/decoupling network (CDN)...................................................................... 12

5 Test set-up for emission and immunity ........................................................................... 12

5.1 General ................................................................................................................. 12

5.2 Load ..................................................................................................................... 15

5.3 Ancillary equipment .............................................................................................. 16

5.3.1 General requirements .................................................................................... 16

5.3.2 Wire feeders .................................................................................................. 16

5.3.3 Remote controls ............................................................................................ 16

5.3.4 Arc striking and stabilizing devices ................................................................ 16

5.3.5 Liquid cooling systems ................................................................................... 17

6 Emission tests ............................................................................................................... 17

6.1 Classification for RF emission tests ...................................................................... 17

6.1.1 Class A equipment ......................................................................................... 17

6.1.2 Class B equipment ......................................................................................... 17

6.2 Test conditions ..................................................................................................... 17

6.2.1 Welding power source ................................................................................... 17

6.2.2 Load voltages ................................................................................................ 18

6.2.3 Wire feeders .................................................................................................. 19

6.2.4 Ancillary equipment ....................................................................................... 19

6.3 Emission limits ...................................................................................................... 19

6.3.1 General ......................................................................................................... 19

6.3.2 Mains terminal disturbance voltage ................................................................ 19

6.3.3 Conducted emissions at signal, control and measurement ports .................... 21

6.3.4 Output current ripple ...................................................................................... 21

6.3.5 Electromagnetic radiation disturbance ........................................................... 22

6.3.6 Harmonics, voltage fluctuations and flicker .................................................... 23

7 Immunity tests ............................................................................................................... 25

7.1 Classification for immunity tests ............................................................................ 25

7.1.1 Applicability of tests ....................................................................................... 25

7.1.2 Category 1 equipment.................................................................................... 25

7.1.3 Category 2 equipment.................................................................................... 25

7.2 Test conditions ..................................................................................................... 25

7.3 Immunity performance criteria ............................................................................... 25

7.3.1 Performance criterion A ................................................................................. 25

7.3.2 Performance criterion B ................................................................................. 26

7.3.3 Performance criterion C ................................................................................. 26

---------------------- Page: 4 ----------------------
IEC 60974-10:2020 © IEC 2020 – 3 –

7.4 Immunity levels ..................................................................................................... 26

8 Documentation for the purchaser/user ........................................................................... 28

Annex A (informative) Installation and use ........................................................................... 30

A.1 General ................................................................................................................. 30

A.2 Assessment of area .............................................................................................. 30

A.3 Assessment of welding installation ........................................................................ 30

A.4 Mitigation measures .............................................................................................. 31

A.4.1 Public supply system ..................................................................................... 31

A.4.2 Maintenance of the arc welding equipment .................................................... 31

A.4.3 Welding cables .............................................................................................. 31

A.4.4 Equipotential bonding .................................................................................... 31

A.4.5 Earthing of the workpiece .............................................................................. 31

A.4.6 Screening and shielding ................................................................................ 31

Annex B (informative) Limits ................................................................................................ 32

B.1 General ................................................................................................................. 32

B.2 Conducted disturbance voltage limits .................................................................... 32

B.3 Output current ripple limit ...................................................................................... 32

B.4 Radiated disturbance limits ................................................................................... 32

B.5 Output current ripple limits .................................................................................... 32

Annex C (informative) Symbols ............................................................................................ 33

Annex D (normative) Battery powered equipment ................................................................. 34

D.1 General ................................................................................................................. 34

D.2 Additional emission requirements .......................................................................... 34

D.3 Additional immunity requirements ......................................................................... 34

Annex E (normative) Equipment containing radio devices .................................................... 35

E.1 General ................................................................................................................. 35

E.2 Additional emission requirements .......................................................................... 35

E.3 Additional immunity requirements ......................................................................... 35

Bibliography .......................................................................................................................... 36

Figure 1 – Examples of ports ................................................................................................ 10

Figure 2 – Test set-up 1 for arc welding equipment ............................................................... 13

Figure 3 – Test set-up 2 for portable arc welding equipment ................................................. 14

Figure 4 – Top view of test set-up as shown in Figure 2 ........................................................ 15

Figure 5 – Overview of harmonic requirements for supply current I up to 75 A .............. 24

1max

Figure 6 – Overview of flicker requirements .......................................................................... 24

Table 1 – Mains terminal disturbance voltage limits, idle state .............................................. 20

Table 2 – Mains terminal disturbance voltage limits, load conditions ..................................... 21

Table 3 – Output current ripple limits for Class B arc welding power sources ........................ 22

Table 4 – Electromagnetic radiation disturbance – Idle state ................................................. 22

Table 5 – Electromagnetic radiation disturbance – Loaded state ........................................... 23

Table 6 – Immunity levels – Enclosure .................................................................................. 26

Table 7 – Immunity levels – AC input power port ................................................................... 27

Table 8 – Immunity levels – Ports for process, signalling, measurement and control ............... 28

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– 4 – IEC 60974-10:2020 © IEC 2020

Table C.1 – Symbols to describe EMC properties ................................................................. 33

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IEC 60974-10:2020 © IEC 2020 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ARC WELDING EQUIPMENT –
Part 10: Electromagnetic compatibility (EMC) requirements
FOREWORD

1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising

all national electrotechnical committees (IEC National Committees). The object of IEC is to promote

international co-operation on all questions concerning standardization in the electrical and electronic fields. To

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governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely

with the International Organization for Standardization (ISO) in accordance with conditions determined by

agreement between the two organizations.

2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international

consensus of opinion on the relevant subjects since each technical committee has representation from all

interested IEC National Committees.

3) IEC Publications have the form of recommendations for international use and are accepted by IEC National

Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC

Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any

misinterpretation by any end user.

4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications

transparently to the maximum extent possible in their national and regional publications. Any divergence

between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in

the latter.

5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity

assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any

services carried out by independent certification bodies.

6) All users should ensure that they have the latest edition of this publication.

7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and

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other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and

expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC

Publications.

8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is

indispensable for the correct application of this publication.

9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of

patent rights. IEC shall not be held responsible for identifying any or all such patent rights.

International Standard IEC 60974-10 has been prepared by IEC technical committee 26:

Electric welding.

This fourth edition cancels and replaces the third edition published in 2014 and its

Amendment 1:2015. This edition constitutes a technical revision.

This edition includes the following significant technical changes with respect to the previous

edition:
a) updated normative references;
b) requirements for battery powered equipment;
c) requirements for equipment combined with radio transmitters/receivers.
---------------------- Page: 7 ----------------------
– 6 – IEC 60974-10:2020 © IEC 2020
The text of this standard is based on the following documents:
FDIS Report on voting
26/695/FDIS 26/697/RVD

Full information on the voting for the approval of this standard can be found in the report on

voting indicated in the above table.

This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

A list of all parts in the IEC 60974 series, published under the general title Arc welding

equipment, can be found on the IEC web site.

The committee has decided that the contents of this publication will remain unchanged until

the stability date indicated on the IEC web site 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.
---------------------- Page: 8 ----------------------
IEC 60974-10:2020 © IEC 2020 – 7 –
ARC WELDING EQUIPMENT –
Part 10: Electromagnetic compatibility (EMC) requirements
1 Scope

This part of IEC 60974 is applicable to equipment for arc welding and allied processes,

including power sources and ancillary equipment, for example wire feeders, liquid cooling

systems, arc striking and stabilizing devices and chargers for battery powered equipment.

NOTE 1 Allied processes are, for example, plasma cutting and arc stud welding.

NOTE 2 This document does not specify basic safety requirements for arc welding equipment such as protection

against electric shock, unsafe operation, insulation coordination and related dielectric tests.

Arc welding equipment containing a radio receiver or transmitter is within the scope of this

document.

The radiated emission requirements in this document are not intended to be applicable to the

intentional transmissions from a radio transmitter as defined by the ITU nor to any spurious

emissions related to these intentional transmitters.
This document specifies
a) applicable standards and test methods for radio-frequency (RF) emissions;

b) applicable standards and test methods for harmonic current emission, voltage fluctuations

and flicker;

c) immunity requirements and test methods for continuous and transient, conducted and

radiated disturbances including electrostatic discharges;

d) additional requirements for equipment powered by internal or external batteries

(Annex D);

e) additional requirements for equipment containing radio frequency transmitters/receivers

(Annex E).

Arc welding equipment type tested in accordance with, and which has met the requirements

set in, this document is considered to be in compliance for all applications.
2 Normative references

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.
IEC 60974-1:2017, Arc welding equipment – Part 1: Welding power sources
IEC 60974-1:2017/AMD1:2019
IEC 60974-6:2015, Arc welding equipment – Part 6: Limited duty equipment

IEC 61000-3-2:2018, Electromagnetic compatibility (EMC) – Part 3-2: Limits – Limits for

harmonic current emissions (equipment input current ≤ 16 A per phase)
---------------------- Page: 9 ----------------------
– 8 – IEC 60974-10:2020 © IEC 2020

IEC 61000-3-3:2013, Electromagnetic compatibility (EMC) – Part 3-3: Limits – Limitation of

voltage changes, voltage fluctuations and flicker in public low-voltage supply systems, for

equipment with rated current ≤ 16 A per phase and not subject to conditional connection

IEC 61000-3-3:2013/AMD1:2017

IEC 61000-3-11:2017, Electromagnetic compatibility (EMC) – Part 3-11: Limits – Limitation of

voltage changes, voltage fluctuations and flicker in public low-voltage supply systems –

Equipment with rated current ≤ 75 A and subject to conditional connection

IEC 61000-3-12:2011, Electromagnetic compatibility (EMC) – Part 3-12: Limits for harmonic

currents produced by equipment connected to public low-voltage systems with input current >

16 A and ≤ 75 A per phase
IEC 61000-4-2:2008, Electromagnetic compatibility (EMC) – Part 4-2: Testing and
measurement techniques – Electrostatic discharge immunity test
IEC 61000-4-3:2006, Electromagnetic compatibility (EMC) – Part 4-3: Testing and

measurement techniques – Radiated, radio-frequency, electromagnetic field immunity test

IEC 61000-4-3:2006/AMD1:2007
IEC 61000-4-3:2006/AMD2:2010
IEC 61000-4-4:2012, Electromagnetic compatibility (EMC) – Part 4-4: Testing and
measurement techniques – Electrical fast transient/burst immunity test
IEC 61000-4-5:2014, Electromagnetic compatibility (EMC) – Part 4-5: Testing and
measurement techniques – Surge immunity test
IEC 61000-4-5:2014/AMD1:2017
IEC 61000-4-6:2013, Electromagnetic compatibility (EMC) – Part 4-6: Testing and

measurement techniques – Immunity to conducted disturbances, induced by radio-frequency

fields

IEC 61000-4-11:2004, Electromagnetic compatibility (EMC) – Part 4-11: Testing and

measurement techniques – Voltage dips, short interruptions and voltage variations immunity

tests
IEC 61000-4-11:2004/AMD1:2017

IEC 61000-4-34:2005, Electromagnetic compatibility (EMC) – Part 4-34: Testing and

measurement techniques – Voltage dips, short interruptions and voltage variations immunity

tests for equipment with input current more than 16 A per phase
IEC 61000-4-34:2005/AMD1:2009

IEC 61000-6-1:2016, Electromagnetic compatibility (EMC) – Part 6-1: Generic standards –

Immunity standard for residential, commercial and light-industrial environments

IEC 61000-6-2:2016, Electromagnetic compatibility (EMC) – Part 6-2: Generic standards –

Immunity standard for industrial environments

IEC 61000-6-3:2006, Electromagnetic compatibility (EMC) – Part 6-3: Generic standards –

Emission standard for residential, commercial and light-industrial environments
IEC 61000-6-3:2006/AMD1:2010

IEC 61000-6-4:2018, Electromagnetic compatibility (EMC) – Part 6-4: Generic standards –

Emission standard for industrial environments
---------------------- Page: 10 ----------------------
IEC 60974-10:2020 © IEC 2020 – 9 –

CISPR 11:2015, Industrial, scientific and medical equipment – Radio-frequency disturbance

characteristics – Limits and methods of measurement
CISPR 11:2015/AMD1:2016
CISPR 11:2015/AMD2:2019

CISPR 14-1:2016, Electromagnetic compatibility – Requirements for household appliances,

electric tools and similar apparatus – Part 1: Emission

CISPR 16-1-1:2019, Specification for radio disturbance and immunity measuring apparatus

and methods – Part 1-1: Radio disturbance and immunity measuring apparatus – Measuring

apparatus

CISPR 16-1-2:2014, Specification for radio disturbance and immunity measuring apparatus

and methods – Part 1-2: Radio disturbance and immunity measuring apparatus – Coupling

devices for conducted disturbance measurements
CISPR 16-1-2:2014/AMD1:2017

CISPR 16-1-4:2019, Specification for radio disturbance and immunity measuring apparatus

and methods – Part 1-4: Radio disturbance and immunity measuring apparatus – Antennas

and test sites for radiated disturbance measurements
3 Terms and definitions

For the purposes of this document, terms and definitions in IEC 60974-1 as well as the

following apply.

ISO and IEC maintain terminological databases for use in standardization at the following

addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1
click

disturbance which exceeds the limit of continuous disturbance no longer than 200 ms and

which is separated from a subsequent disturbance by at least 200 ms

Note 1 to entry: Both intervals are related to the level of the limit of continuous disturbance.

Note 2 to entry: A click may contain a number of impulses, in which case the relevant time is that from the

beginning of the first to the end of the last impulse.
[SOURCE: IEC 60050-851:2008, 851-15-13]
3.2
coupling network

electrical circuit for transferring energy from one circuit to another with a defined impedance

Note 1 to entry: Coupling and decoupling devices can be integrated into one box (coupling and decoupling

network (CDN)) or they can be in separate networks.
[SOURCE:IEC 61000-4-6:2013, 3.7]
3.3
CDN
coupling/decoupling network

electrical circuit incorporating the functions of both the coupling and decoupling networks

[SOURCE:IEC 61000-4-6:2013, 3.8]
---------------------- Page: 11 ----------------------
– 10 – IEC 60974-10:2020 © IEC 2020
3.4
decoupling network
decoupling device
electrical circuit for prevent
...

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