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

IEC 60204-11:2018 is now available as IEC 60204-11:2018 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 60204-11:2018 applies to electrical and electronic equipment and systems to machines, including a group of machines working together in a co-ordinated manner, which operate at nominal voltages above 1 000 V AC or 1 500 V DC and not exceeding 36 kV AC or DC with nominal frequencies not exceeding 60 Hz. IEC 60204-11:2018 cancels and replaces the first edition, published in 2000. This edition constitutes a technical revision. This edition contains significant technical changes with respect to the previous edition regarding the following:
– aspects of risk assessment, which are mirrored from ISO 12100;
– equipotential bonding and earthing;
– EMC and power quality;
– HV switchgear and controlgear;
– creepage distances for conductors and slip-ring assemblies;
– a list of machinery using HV equipment, in Annex A.
IEC 60204-11:2018 has been updated and improved to reflect the experience gained with the first edition and the evolution of high-voltage equipment reflected in the relevant standards. Regarding formal requirements, IEC 60204-11 has been aligned with
– IEC 60204-1:2016,
– IEC 61936-1:2010 and IEC 61936-1:2010/AMD1:2014,
– IEC 62271 (all parts). This document is intended to be used in conjunction with IEC 60204-1.

Sécurité des machines - Équipement électrique des machines - Partie 11: Exigences pour les équipements fonctionnant à des tensions supérieures à 1 000 V en courant alternatif ou 1 500 V en courant continu et ne dépassant pas 36 kV

IEC 60204-11:2018 est disponible sous forme de IEC 60204-11:2018 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.
L'IEC 60204-11:2018 est applicable aux équipements et systèmes électriques et électroniques des machines, y compris à un groupe de machines fonctionnant de manière coordonnée, qui fonctionnent à une tension nominale supérieure à 1 000 V en courant alternatif ou 1 500 V en courant continu et non supérieure à 36 kV en courant alternatif ou continu et pour des fréquences nominales n’excédant pas 60 Hz. L'IEC 60204-11:2018 annule et remplace la première édition parue en 2000. Cette édition constitue une révision technique. Cette édition contient des modifications techniques majeures par rapport à l’édition précédente qui concernent:
– les aspects liés à l’appréciation du risque, tirés de l’ISO 12100;
– les liaisons équipotentielles et la mise à la terre;
– la CEM et la qualité de la puissance;
– les appareillages à haute tension;
– les lignes de fuite pour conducteurs et ensembles de bagues collectrices;
– une liste des machines utilisant des équipements HT dans l’Annexe A.
IEC 60204-11:2018 a été mise à jour et améliorée sur la base de l’expérience acquise avec la première édition et sur la base de l’évolution des équipements haute tension décrits dans les normes applicables. Concernant les exigences de forme, l'IEC 60204-11 a été alignée sur
– l’IEC 60204-1:2016,
– l’IEC 61936-1:2010 et l’IEC 61936-1:2010/AMD1:2014,
– l’IEC 62271 (toutes les parties). Cette norme est destinée à être utilisée conjointement avec l’IEC 60204-1.

General Information

Status
Published
Publication Date
30-Jul-2018
Current Stage
PPUB - Publication issued
Completion Date
31-Jul-2018
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IEC 60204-11
Edition 2.0 2018-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
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
Sécurité des machines – Équipement électrique des machines –
Partie 11: Exigences pour les équipements fonctionnant à des tensions
supérieures à 1 000 V en courant alternatif ou 1 500 V en courant continu et ne
dépassant pas 36 kV
IEC 60204-11:2018-07(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 60204-11
Edition 2.0 2018-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
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
Sécurité des machines – Équipement électrique des machines –
Partie 11: Exigences pour les équipements fonctionnant à des tensions
supérieures à 1 000 V en courant alternatif ou 1 500 V en courant continu et ne
dépassant pas 36 kV
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 13.110; 29.020 ISBN 978-2-8322-5904-7

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 60204-11:2018 © IEC 2018
CONTENTS

FOREWORD ......................................................................................................................... 6

INTRODUCTION ................................................................................................................... 8

1 Scope .......................................................................................................................... 10

2 Normative references................................................................................................... 11

3 Terms and definitions .................................................................................................. 12

4 General requirements .................................................................................................. 18

4.1 General ............................................................................................................... 18

4.2 Selection of electrical equipment ......................................................................... 19

4.3 Electrical power supply ........................................................................................ 20

4.3.1 General ....................................................................................................... 20

4.3.2 Voltage characteristics ................................................................................. 20

4.3.3 On-board power supply ................................................................................ 20

4.4 Physical environment and operating conditions .................................................... 20

4.4.1 General ....................................................................................................... 20

4.4.2 Electromagnetic compatibility (EMC) ............................................................ 20

4.5 Transportation and storage .................................................................................. 21

4.6 Provisions for handling ........................................................................................ 21

4.7 Installation .......................................................................................................... 21

4.7.1 General ....................................................................................................... 21

4.7.2 Assembly and mounting ............................................................................... 21

5 Incoming supply conductor terminations and devices for disconnecting and

switching off ................................................................................................................ 21

5.1 Incoming high-voltage conductor terminations ...................................................... 21

5.2 Earthing terminal of high-voltage equipment ........................................................ 21

5.3 Supply disconnecting devices and means for earthing .......................................... 22

5.3.1 General ....................................................................................................... 22

5.3.2 Type ............................................................................................................ 22

5.3.3 Requirements for disconnectors ................................................................... 23

5.3.4 Requirements for earthing and short-circuiting .............................................. 23

5.3.5 Arrangement of disconnecting and earthing devices ...................................... 24

5.4 Devices for switching off for prevention of unexpected start-up ............................. 24

5.5 Devices for disconnecting and means for earthing HV equipment ......................... 24

5.6 Protection against unauthorized, inadvertent and/or mistaken operation ............... 25

6 Protection against electric shock .................................................................................. 25

6.1 General ............................................................................................................... 25

6.2 Protection against direct contact .......................................................................... 26

6.3 Protection against indirect contact ....................................................................... 26

6.3.1 General ....................................................................................................... 26

6.3.2 Measures to prevent the occurrence of a hazardous touch voltage for

an unlimited time of fault duration ................................................................. 26

6.3.3 Protection by automatic disconnection of supply within a limited time of

fault duration ................................................................................................ 27

6.3.4 Protection for mobile machines ..................................................................... 27

7 Protection of HV equipment ......................................................................................... 28

7.1 General ............................................................................................................... 28

7.2 Overcurrent protection ......................................................................................... 28

---------------------- Page: 4 ----------------------
IEC 60204-11:2018 © IEC 2018 – 3 –

7.2.1 General ....................................................................................................... 28

7.2.2 Supply conductors ....................................................................................... 28

7.2.3 Power circuits .............................................................................................. 28

7.2.4 Transformers ............................................................................................... 28

7.2.5 Overcurrent protective devices ..................................................................... 29

7.2.6 Rating and setting of overcurrent protective devices ..................................... 29

7.3 Protection of motors against overheating ............................................................. 29

7.4 Protection against abnormal temperature ............................................................. 29

7.5 Protection against the effects of supply interruption or voltage reduction and

subsequent restoration ........................................................................................ 29

7.6 Motor overspeed protection ................................................................................. 29

7.7 Earth fault protection ........................................................................................... 30

7.8 Protection against overvoltage due to lightning and switching surges ................... 30

7.9 Protection against hazards due to arc faults ......................................................... 30

7.10 Protection against overpressure and leakage ....................................................... 30

7.11 Protection against fire ......................................................................................... 30

8 Equipotential bonding .................................................................................................. 30

8.1 General ............................................................................................................... 30

8.2 Protective bonding circuit .................................................................................... 33

8.2.1 General ....................................................................................................... 33

8.2.2 Protective conductors ................................................................................... 34

8.2.3 Continuity of the protective bonding circuit .................................................... 34

8.2.4 Mobile machines .......................................................................................... 35

8.2.5 Protective bonding circuit connecting points ................................................. 35

8.2.6 Supplementary protective bonding conductors .............................................. 36

9 Control systems, control circuits and control functions .................................................. 36

10 Operator interface and machine-mounted control devices ............................................. 36

11 Electronic equipment ................................................................................................... 36

12 Controlgear: location, mounting, and enclosures .......................................................... 36

12.1 General requirements .......................................................................................... 36

12.2 Location and mounting ........................................................................................ 37

12.2.1 Accessibility and maintenance ...................................................................... 37

12.2.2 Physical separation ...................................................................................... 37

12.3 Degrees of protection .......................................................................................... 37

12.4 Enclosures, doors and openings .......................................................................... 38

12.5 Access to HV equipment ..................................................................................... 39

13 Conductors and cables ................................................................................................ 39

13.1 General requirements .......................................................................................... 39

13.2 Conductors ......................................................................................................... 39

13.3 Insulation and sheath materials ........................................................................... 40

13.4 Current-carrying capacity in normal service ......................................................... 40

13.5 Conductor and cable voltage drop ....................................................................... 40

13.6 Minimum cross-sectional area ............................................................................. 40

13.7 Flexible cables .................................................................................................... 40

13.7.1 General ....................................................................................................... 40

13.7.2 Mechanical rating ......................................................................................... 41

13.7.3 Current-carrying capacity of cables wound on drums .................................... 41

13.8 Conductor wires, conductor bars and slip-ring assemblies .................................... 41

---------------------- Page: 5 ----------------------
– 4 – IEC 60204-11:2018 © IEC 2018

13.8.1 Protection against direct contact ................................................................... 41

13.8.2 Protective bonding circuit ............................................................................. 42

13.8.3 Protective conductor current collectors ......................................................... 42

13.8.4 Clearances in air .......................................................................................... 42

13.8.5 Creepage distances ..................................................................................... 42

13.8.6 Conductor system sectioning ........................................................................ 43

13.8.7 Construction and installation of conductor wire, conductor bar systems

and slip-ring assemblies ............................................................................... 43

14 Wiring practices ........................................................................................................... 44

14.1 Connections and routing ...................................................................................... 44

14.1.1 General requirements ................................................................................... 44

14.1.2 Cable runs ................................................................................................... 44

14.2 Identification of conductors .................................................................................. 45

14.3 Flexible cables .................................................................................................... 45

14.4 Plug-socket combinations .................................................................................... 46

14.5 Dismantling for shipment ..................................................................................... 46

14.6 Cable trays ......................................................................................................... 46

15 Electric motors and associated equipment .................................................................... 46

15.1 General ............................................................................................................... 46

15.2 Motor connection boxes ...................................................................................... 46

16 Means to protect persons working on electrical installations ......................................... 47

16.1 General ............................................................................................................... 47

16.2 Equipment for isolating installations or apparatus ................................................ 47

16.3 Devices to prevent reclosing of isolating devices.................................................. 47

16.4 Devices for determining the de-energized state .................................................... 47

16.5 Devices for earthing and short-circuiting .............................................................. 47

16.6 Equipment acting as protective barriers against adjacent live parts ...................... 47

16.7 Storage of personal protection equipment ............................................................ 47

17 Marking, warning signs and reference designations ...................................................... 47

17.1 General ............................................................................................................... 47

17.2 Warning signs ..................................................................................................... 47

18 Technical documentation ............................................................................................. 48

18.1 General ............................................................................................................... 48

18.2 Instructions for use .............................................................................................. 48

18.2.1 General ....................................................................................................... 48

18.2.2 Provisions for handling ................................................................................. 48

18.2.3 Assembly and mounting ............................................................................... 48

18.2.4 Connections ................................................................................................. 49

18.2.5 Final installation inspection .......................................................................... 49

18.2.6 Warning sign ................................................................................................ 49

19 Testing and verification ................................................................................................ 49

19.1 General ............................................................................................................... 49

19.2 Earthing system tests .......................................................................................... 49

19.3 Insulation resistance tests ................................................................................... 50

19.4 Voltage tests ....................................................................................................... 50

19.5 Functional tests ................................................................................................... 50

19.6 IP tests for HV equipment outside electrical operating areas ................................ 50

19.7 Retesting ............................................................................................................ 50

---------------------- Page: 6 ----------------------
IEC 60204-11:2018 © IEC 2018 – 5 –

Annex A (informative) Examples of machines covered by IEC 60204-11 .............................. 51

Annex B (informative) Inquiry form for the HV equipment of machines ................................. 52

Annex C (informative) Relationship between cable rated voltages and highest voltage

for HV equipment ................................................................................................................ 56

Bibliography ....................................................................................................................... 57

Figure 1 – Block diagram of a machine containing HV equipment ........................................... 9

Figure 2 – Example of equipotential bonding for electrical equipment of a machine .............. 33

Figure 3 – Symbol for protective earth (protective ground) ................................................... 35

Figure 4 – Warning sign “high voltage” ................................................................................ 48

Figure 5 – DANGER hazard severity panel .......................................................................... 48

Table 1 – Maximum allowable conductor temperatures under normal and short-circuit

conditions ........................................................................................................................... 39

Table 2 – De-rating factors for cables wound on drums ........................................................ 41

Table 3 – Selection of the pollution level depending on the degree of protection and

insulator material ................................................................................................................ 43

Table 4 – Minimum creepage distance of conductor lines and slip ring assemblies ............... 43

Table B.1 – Overvoltage protection for HV equipment of machinery ..................................... 54

Table C.1 – Rated voltages of cable and highest voltage for HV equipment .......................... 56

---------------------- Page: 7 ----------------------
– 6 – IEC 60204-11:2018 © IEC 2018
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
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
FOREWORD

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International Standard IEC 60204-11 has been prepared by IEC technical committee 44:

Safety of machinery – Electrotechnical aspects.

This second edition cancels and replaces the first edition, published in 2000. This edition

constitutes a technical revision.

This edition contains significant technical changes with respect to the previous edition

regarding the following:
– aspects of risk assessment, which are mirrored from ISO 12100;
– equipotential bon
...

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