Amendment 1 - Safety of machinery - Electrical equipment of machines - Part 1: General requirements

Amendement 1 - Sécurité des machines - Équipement électrique des machines - Partie 1: Exigences générales

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Publication Date
14-Sep-2021
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Completion Date
15-Sep-2021
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IEC 60204-1
Edition 6.0 2021-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
AM ENDMENT 1
AM ENDEMENT 1
Safety of machinery –
Part 1: General requirements
Sécurité des machines –
Partie 1: Exigences générales
IEC 60204-1:2016-10/AMD1:2021-09(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 60204-1
Edition 6.0 2021-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
AM ENDMENT 1
AM ENDEMENT 1
Safety of machinery –
Part 1: General requirements
Sécurité des machines –
Partie 1: Exigences générales
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 13.110; 29.020 ISBN 978-2-8322-1022-7

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 60204-1:2016/AMD1:2021
© IEC 2021
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SAFETY OF MACHINERY –
Part 1: General requirements
AMENDMENT 1
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 this end and

in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,

Publicly Available Specifications (PAS) and Guides (hereafter referred to as "IEC Publication(s)"). Their

preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with

may participate in this preparatory work. International, governmental and non-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

members of its technical committees and IEC National Committees for any personal injury, property damage or

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 document may be the subject of patent

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

Amendment 1 to IEC 60204-1:2016 has been prepared by IEC technical committee 44: Safety

of machinery – Electrotechnical aspects.
The text of this Amendment is based on the following documents:
Draft Report on voting
44/884/CDV 44/913/RVC

Full information on the voting for its approval can be found in the report on voting indicated in

the above table.
The language used for the development of this Amendment is English.
---------------------- Page: 4 ----------------------
IEC 60204-1:2016/AMD1:2021 – 3 –
© IEC 2021

This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in

accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available

at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are

described in greater detail at www.iec.ch/standardsdev/publications/.

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

stability date indicated on the IEC website under webstore.iec.ch in the data related to the

specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
___________
FOREWORD
Replace the 7th item under the 8th paragraph with:

6.3.3 b): The use of residual current protective devices with a rated residual operating

current which is coordinated with the earth electrode resistance is mandatory in TT

systems as a means for fault protection by automatic disconnection of supply (Italy).

Replace the 8th item under the 8th paragraph with:

7.2.3: Disconnection of the neutral conductor is mandatory in a TN-S system (France).

Add the following new item after the 8th item under the 8th paragraph with:

7.2.3: Disconnection of the neutral conductor is mandatory in TN-systems (Norway).

2 Normative References
Delete the existing reference to IEC 60034-1.

Replace the existing reference to IEC 60364-4-41 with the following new reference:

IEC 60364-4-41:2005, Low-voltage electrical installations – Part 4-41: Protection for safety –

Protection against electric shock
IEC 60364-4-41:2005/AMD1:2017
---------------------- Page: 5 ----------------------
– 4 – IEC 60204-1:2016/AMD1:2021
© IEC 2021

Replace the existing reference to IEC 60364-5-53 with the following new reference:

IEC 60364-5-53:2019, Low-voltage electrical installations – Part 5-53: Selection and erection

of electrical equipment – Devices for protection for safety, isolation, switching, control and

monitoring
Add the following new reference:
IEC 60364-6:2016, Low-voltage electrical installations – Part 6: Verification
Replace the existing reference to IEC 60445 with the following new reference:

IEC 60445:2017, Basic and safety principles for man-machine interface, marking and

identification – Identification of equipment terminals, conductor terminations and conductors

Replace the existing reference to IEC 60947-5-1 with the following new reference:

IEC 60947-5-1:2016, Low-voltage switchgear and controlgear – Part 5-1: Control circuit devices

and switching elements – Electromechanical control circuit devices
Replace the existing reference to IEC 61558-1 with the following new reference:

IEC 61558-1:2017, Safety of transformers, reactors, power supply units and combinations

thereof – Part 1: General requirements and tests
Replace the existing reference to ISO 7010 with the following new reference:

ISO 7010:2019, Graphical symbols – Safety colours and safety signs – Registered safety signs

ISO 7010:2019/AMD1:2020
Replace the existing reference to ISO 13850 with the following new reference:

ISO 13850:2015, Safety of machinery – Emergency stop function – Principles for design

3.1 Terms and definitions

Replace existing source reference for term 3.1.16 "direct opening action" with the following new

text:
[SOURCE: IEC 60947-5-1:2016, K.2.2]

Replace the existing source reference for term 3.1.21 "emergency stop device" with the

following new text:
[SOURCE: ISO 13850:2015, 3.3, modified – Note has been added]
---------------------- Page: 6 ----------------------
IEC 60204-1:2016/AMD1:2021 – 5 –
© IEC 2021
4.4.2 Electromagnetic Compatibility
Delete the existing second paragraph of Subclause 4.4.2.
Rename existing NOTE to NOTE 1 and add, after NOTE 1, the following new NOTE 2:

NOTE 2 Annex H provides examples of measures to reduce the effects of electromagnetic influences.

4.4.5 Altitude

Replace the existing text of the second paragraph of Subclause 4.4.5 before the hyphenated

list with the following new text:

For equipment to be used at higher altitudes, it is necessary to take into account changes in

parameters for example, the reduction of:

Add, at the beginning of the third paragraph of Subclause 4.4.5, the following new text:

Other parameters of different components can also alter with altitude.
6.3.1 General
Replace the text of NOTE 1 with the following new text:

The risk of harmful physiological effects from touch voltages depends upon a number of factors. These include but

are not limited to; value of touch voltage, duration of possible exposure, environmental factors, skin condition.

8.2.1 General
Replace the fourth bulleted item of Subclause 8.2.1 with the following new text:
• those conductive structural parts of the machine used for protective bonding.
8.2.2 Protective Conductors

Replace the existing text of the fifth paragraph of Subclause 8.2.2 with the following new text:

Each protective conductor shall:
• be part of a multicore cable, or;
• be in a common enclosure with the line conductor, or;
• have a cross-sectional area of at least:
• 2,5 mm2 Cu or 16 mm2 Al if protection against mechanical damage is provided;
• 4 mm2 Cu or 16 mm2 Al if protection against mechanical damage is not provided.
NOTE 1 The use of steel for a protective conductor is not excluded.

Delete the first bulleted list item of the seventh paragraph of Subclause 8.2.2 ("conductive

structural parts of the machine").
---------------------- Page: 7 ----------------------
– 6 – IEC 60204-1:2016/AMD1:2021
© IEC 2021
9.2.3.2 Start

Replace the existing fourth paragraph of Subclause 9.2.3.2 with the following new text:

The provision of acoustic and/or visual warning signals before the starting of hazardous

machine operation shall be considered during the risk assessment. Where the risk assessment

determines that either or both are required the emission level of these warning signals shall be

suitable for the intended environment.
9.2.3.4.3 Emergency Switching Off

Replace, in the first paragraph of Subclause 9.2.3.3.4, "IEC 60364-5-53:2001" with "IEC 60364-

5-53:2019".
9.2.4.1 General requirements

Replace the existing second paragraph of Subclause 9.2.4.1 with the following new text:

Where a safety function of a CCS relies on data transmission the transmission reliability shall

be considered.
Replace existing NOTE 3 with the following new text:

NOTE 3 IEC 62745 deals with cableless control systems for electrical equipment of machinery..

9.2.4.8 Emergency stop reset

Replace the existing third paragraph of Subclause 9.2.4.8 with the following new text:

Where the risk assessment shows that resetting of an emergency stop actuator on the portable

cableless operator control station is not adequate then one or more supplementary fixed resets

shall be provided.
10.8.2 Types of emergency switching off device

Replace the existing second paragraph of Subclause 10.8.2 with the following new text:

The devices shall have direct opening action (see Annex K of IEC 60947-5-1:2016).

11.4 Enclosures, doors and openings

In the ninth paragraph of Subclause 11.4, replace the first occurrence of "harmful" with

"detrimental".
---------------------- Page: 8 ----------------------
IEC 60204-1:2016/AMD1:2021 – 7 –
© IEC 2021
12.3 Insulation

Replace, in the first paragraph of Subclause 12.3, "should be sought" with "shall be considered".

13.2.3 Identification of the neutral conductor

Replace, in the first paragraph of Subclause 13.2.3, "IEC 60445:2010" with IEC 60445:2017.

13.5.2 Rigid metal conduit and fittings

Replace the existing second sentence of the first paragraph of Subclause 13.5.2 with the

following new text:

Where galvanic action is possible between dissimilar metals these metal combinations shall not

be used.
16.4 Marking of enclosures of electrical equipment
Delete the existing second bullet point of Subclause 16.4.
18.1 General

Add, at the end of the second paragraph of Subclause 18.1, the following new text:

Where the sequence cannot be followed verification a) and b) shall be conducted first.

18.2.2 Test 1 – Verification of the continuity of the protective bonding circuit

Replace, in the first paragraph of Subclause 18.2.2, "IEC 60364-4-41:2005" with "IEC 60364-

4-41:2005+AMD1:2017"

18.2.3 Test 2 – Fault loop impedance verification and suitability of the associated

overcurrent protective device

Replace the existing second dashed list item under item a) of the second paragraph of

Subclause 18.2.3 with the following new text:

– measurement in accordance with A.1.4 for TN-systems or A.2.4 for TT-systems, and

---------------------- Page: 9 ----------------------
– 8 – IEC 60204-1:2016/AMD1:2021
© IEC 2021
18.4 Voltage tests

Delete the existing first paragraph of Subclause 18.4 and add the following new Note after the

new first paragraph (previously second paragraph):

NOTE Test equipment in accordance with IEC 61180 or IEC 61557-14 can be used to perform voltage testing.

A.1.1 General

Replace the existing first paragraph of Subclause A.1.1 with the following new text:

The provisions in Annex A are derived from IEC 60364-4-41:2005+AMD1:2017, and
IEC 60364-6:2016.
A.1.2 Conditions for protection by automatic disconnection of the supply by
overcurrent protective devices

Replace the existing text of the third paragraph of Subclause A.1.2 with the following new text:

Where the value of the fault loop impedance exceeds 2U /3I , a more precise assessment can

0 a

be made in accordance with the procedure described in D.6.4.3.7.3 of IEC 60364-6:2016.

A.2.1 Connection to earth
In the NOTE replace the reference "IEC 60364-4-41:2005" with
"IEC 60364‑4‑41:2005+AMD1:2017".
A.2.2 Protection by residual current protective device (RCD)

Replace, in NOTE 2, the reference "IEC 60364-5-53:2001" with "IEC 60364-5-53:2019".

H.2 General
Add, at the end of Clause H.2, the following new text:

In some applications, immunity and/or emission requirements of the electrical equipment can

be met when the following conditions are fulfilled:

• the incorporated devices and components comply with the EMC requirements for the

intended EMC environment specified in the relevant product standard (or generic standard

where no product standard exists), and;

• the electrical installation and wiring are consistent with the instructions provided by the

supplier of the devices and components with regard to mutual influences, (cabling,

screening, earthing etc.) or with this informative Annex H if such instructions are not

available from the supplier.
---------------------- Page: 10 ----------------------
IEC 60204-1:2016/AMD1:2021 – 9 –
© IEC 2021
Bibliography
Add the following new reference:
IEC 60034-1, Rotating electrical machines – Part 1: Rating and performance
Replace the existing reference to IEC 60204-11 with the following new reference:

IEC 60204-11:2018, Safety of machinery – Electrical equipment of machines – Part 11:

Requirements for equipment for voltages above 1 000 V AC or 1 500 V DC and not exceeding

36 kV
Replace the existing reference to IEC 60909-0 with the following new reference:

IEC 60909-0:2016, Short-circuit currents in three-phase a.c. systems – Part 0: Calculation of

currents

Replace the existing reference to IEC 60947-5-2 with the following new reference:

IEC 60947-5-2:2019, Low-voltage switchgear and controlgear – Part 5-2: Control circuit devices

and switching elements – Proximity switches

Replace the existing reference to IEC 61000-6-1 with the following new reference:

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

Immunity standard for residential, commercial and light-industrial environments

Replace the existing reference to IEC 61000-6-2 with the following new reference:

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

Immunity standard for industrial environments

Replace the existing reference to IEC 61000-6-4 with the following new reference:

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

Emission standard for industrial environments
Replace the existing reference to IEC 61180 with the following new reference:

IEC 61180, High-voltage test techniques for low-voltage equipment – Definitions, test and

procedure requirements, test equipment
Replace the existing reference to IEC 61496-1 with the following new reference:

IEC 61496-1:2020, Safety of machinery – Electro-sensitive protective equipment – Part 1:

General requirements and tests
Replace the existing reference to IEC 62745 with the following new reference:

IEC 62745, Safety of machinery – Requirements for cableless control systems of machinery

---------------------- Page: 11 ----------------------
– 10 – IEC 60204-1:2016/AMD1:2021
© IEC 2021
Replace the existing reference to IEC 81346-2 with the following new reference:

IEC 81346-2:2019, Industrial systems, installations and equipment and industrial products –

Structuring principles and reference designations – Part 2: Classification of objects and codes

for classes
Replace the existing reference to ISO 13851 with the following new reference:

ISO 13851:2019, Safety of machinery – Two-hand control devices – Functional aspects and

design principles
Replace the existing reference to ISO 14118 with the following new reference:
ISO 14118:2017, Safety of machinery – Prevention of unexpected start-up
Add the following new reference:

ISO 14119, Safety of machinery – Interlocking devices associated with guards – Principles for

design and selection
Replace the existing reference to ISO 14122-1 with the following new reference:

ISO 14122-1:2016, Safety of machinery – Permanent means of access to machinery – Part 1:

Choice of fixed means of access between two levels
Replace the existing reference to ISO 14122-2 with the following new reference:

ISO 14122-2:2016, Safety of machinery – Permanent means of access to machinery – Part 2:

Working platforms and walkways
Replace the existing reference to ISO 14122-3 with the following new reference:

ISO 14122-3:2016, Safety of machinery – Permanent means of access to machinery – Part 3:

Stairs, stepladders and guard-rails
Replace the existing reference to UL508A with the following new reference:
UL 508A,UL Standard for Safety for Industrial Control Panels
Replace the existing reference to NFPA 79 with the following new reference:
NFPA 79, Electrical Standard for Industrial Machinery
___________
---------------------- Page: 12 ----------------------
– 12 – IEC 60204-1:2016/AMD1:2021
© IEC 2021
COMMISSION ÉLECTROTECHNIQUE INTERNATIONALE
____________
SÉCURITÉ DES MACHINES –
Partie 1: Exigences générales
AMENDEMENT 1
AVANT-PROPOS

1) La Commission Electrotechnique Internationale (IEC) est une organisation mondiale de normalisation composée

de l'ensemble des comités électrotechniques nationaux (Comités nationaux de l'IEC). L’IEC a pour objet de

favoriser la coopération internationale pour toutes les questions de normalisation dans les domaines de

l'électricité et de l'électronique. A cet effet, l'IEC – entre autres activités – publie des Normes internationales,

des Spécifications techniques, des Rapports techniques, des Spécifications accessibles au public (PAS) et des

Guides (ci-après dénommés "Publication(s) de l'IEC"). Leur élaboration est confiée à des comités d'études, aux

travaux desquels tout Comité national intéressé par le sujet traité peut participer. Les organisations

internationales, gouvernementales et non gouvernementales, en liaison avec l’IEC, participent également aux

travaux. L’IEC collabore étroitement avec l'Organisation Internationale de Normalisation (ISO), selon des

conditions fixées par accord entre les deux organisations.

2) Les décisions ou accords officiels de l’IEC concernant les questions techniques représentent, dans la mesure du

possible, un accord international sur les sujets étudiés, étant donné que les Comités nationaux de l’IEC intéressés

sont représentés dans chaque comité d’études.

3) Les Publications de l’IEC se présentent sous la forme de recommandations internationales et sont agréées

comme telles par les Comités nationaux de l’IEC. Tous les efforts raisonnables sont entrepris afin que l'IEC

s'assure de l'exactitude du contenu technique de ses publications; l'IEC ne peut pas être tenue responsable de

l'éventuelle mauvaise utilisation ou interprétation qui en est faite par un quelconque utilisateur final.

4) Dans le but d'encourager l'uniformité internationale, les Comités nationaux de l'IEC s'engagent, dans toute la

mesure possible, à appliquer de façon transparente les Publications de l'IEC dans leurs publications nationales

et régionales. Toutes divergences entre toutes Publications de l'IEC et toutes publications nationales ou

régionales correspondantes doivent être indiquées en termes clairs dans ces dernières.

5) L'IEC elle-même ne fournit aucune attestation de conformité. Des organismes de certification indépendants

fournissent des services d'évaluation de conformité et, dans certains secteurs, accèdent aux marques de

conformité de l’IEC. L’IEC n'est responsable d'aucun des services effectués par les organismes de certification

indépendants.

6) Tous les utilisateurs doivent s'assurer qu'ils sont en possession de la dernière édition de cette publication.

7) Aucune responsabilité ne doit être imputée à l'IEC, à ses administrateurs, employés, auxiliaires ou mandataires,

y compris ses experts particuliers et les membres de ses comités d'études et des Comités nationaux de l'IEC,

pour tout préjudice causé en cas de dommages corporels et matériels, ou de tout autre dommage de quelque

nature que ce soit, directe ou indirecte, ou pour supporter les coûts (y compris les frais de justice) et les dépenses

découlant de la publication ou de l'utilisation de cette Publication de l'IEC ou de toute autre Publication de l'IEC,

ou au crédit qui lui est accordé.

8) L’attention est attirée sur les références normatives citées dans cette publication. L'utilisation de publications

référencées est obligatoire pour une application correcte de la présente publication.

9) L'attention est attirée sur le fait que certains des éléments de la présente publication de l'IEC peuvent faire l'objet

de droits de brevet. L’IEC ne saurait être tenue pour responsable de ne pas avoir identifié de tels droits de

brevets.

L’amendement 1 à l’IEC 60204-1:2016 a été établi par le comité d’études 44 de l’IEC: Sécurité

des machines – Aspects électrotechniques
Le texte de cet Amendement est issu des documents suivants:
Projet Rapport de vote
44/884/CDV 44/913/RVC

Le rapport de vote indiqué dans le tableau ci-dessus donne toute information sur le vote ayant

abouti à son approbation.
---------------------- Page: 13 ----------------------
IEC 60204-1:2016/AMD1:2021 – 13 –
© IEC 2021
La langue employée pour l’élaboration du présent Amendement est l’anglais.

Ce document a été rédigé selon les Directives ISO/IEC, Partie 2, il a été développé selon les

Directives ISO/IEC, Partie 1 et les Directives ISO/IEC, Supplément IEC, disponibles sous

www.iec.ch/members_experts/refdocs. Les principaux types de documents développés par

l'IEC sont décrits plus en détail sous www.iec.ch/standardsdev/publications/.

Le comité a décidé que le contenu de ce document ne sera pas modifié avant la date de stabilité

indiquée sur le site web de l’IEC sous webstore.iec.ch dans les données relatives au document

recherché. A cette date, le document sera
• reconduit,
• supprimé,
• remplacé par une édition révisée, ou
• amendé.
___________
AVANT-PROPOS
Remplacer le 7e élément situé sous le 8e alinéa par:

6.3.3 b): L'utilisation de dispositifs différentiels résiduels avec un courant de fonctionnement

résiduel assigné qui est coordonné avec la résistance de l'électrode de terre est

obligato
...

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