SIST EN IEC 60204-11:2019
(Main)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)
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)
This part of IEC 60204 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.
In this document, the term HV equipment also covers the LV equipment forming an integral
part of the equipment operating at high voltage. The requirements in this document primarily
cover the parts operating at high-voltage except where explicitly stated otherwise.
NOTE 1 LV equipment not forming part of the HV equipment is covered by IEC 60204-1:2016.
NOTE 2 In this document, the term "electrical" includes both electrical and electronic matters (i.e. electrical
equipment means both the electrical and the electronic equipment).
NOTE 3 This document does not apply to independent high-voltage power supply installations for which separate
IEC standards exist.
The electrical equipment covered by this document commences at the point of connection of
the supply to the electrical equipment of the machine (see 5.1).
NOTE 4 For the requirements for high-voltage power supply installations, see IEC 61936-1.
This document is a generic safety standard. It does not cover all the requirements (e.g.
guarding, interlocking or control) which are needed or required by other standards or
regulations in order to safeguard personnel from hazards other than electrical hazards. Each
type of machine has unique requirements to be accommodated to provide adequate safety.
NOTE 5 In some machines the high-voltage power supply can be produced by a step-up transformer
(autotransformer), supplied by a low-voltage system (e.g. by a LV generator).
NOTE 6 In the context of this document, the term "person" refers to any individual; "personnel" are those persons
who are assigned and instructed by the user or his agent(s) in the use and care of the machine in question.
This part of IEC 60204 specifically includes, but is not limited to, machines as defined in 3.29
(Annex A lists examples of machines whose electrical equipment can be covered by this
document).
For protection against electric shock from high-voltage equipment, this document refers to
IEC 61936-1. When it comes to low-voltage equipment, this document refers to
IEC 602041:
2016.
NOTE 7 High- and low-voltage standards use different terms regarding protection against electric shock. Whereas
high-voltage standards use the terms “direct contact” and “indirect contact”, low-voltage standards correspondingly
use “basic protection” and “fault protection”.
Additional and special requirements can apply to the electrical equipment of machines that
– are used in the open air (i.e. outside buildings or other protective structures);
– use, process or produce potentially explosive material (e.g. paint or sawdust);
– are used in potentially explosive and/or flammable atmospheres;
– have special risks when producing or using certain materials;
– are used in mines.
Hazards as a result of noise and vibration are excluded from the scope of this document.
Sicherheit von Maschinen - Elektrische Ausrüstung von Maschinen - Teil 11: Anforderungen an Hochspannungsausrüstung für Spannungen über 1000 V Wechselspannung oder 1500 V Gleichspannung aber nicht über 36 kV (IEC 60204-11:2018)
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)
NEW!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.
Varnost strojev - Električna oprema strojev - 11. del: Zahteve za VN opremo za napetosti nad 1000 V a.c. ali 1500 V d.c., vendar ne nad 36 kV (IEC 60204-11:2018)
Ta del standarda IEC 60204 se uporablja za električno in elektronsko opremo in sisteme za stroje, vključno s skupino strojev, ki delujejo skupaj in usklajeno ter ki delujejo pri nazivni napetosti nad 1000 V a.c. ali 1500 V d.c., vendar ne nad 36 kV a.c. ali d.c. z nazivno frekvenco, ki ne presega 60 Hz.
V tem dokumentu izraz visokonapetostna (HV) oprema zajema nizkonapetostno (LV) opremo, ki je nepogrešljiv sestavni del opreme, ki deluje pri visoki napetosti. Zahteve v tem dokumentu zadevajo predvsem dele, ki delujejo pri visoki napetosti, razen kadar je izrecno navedeno drugače.
OPOMBA 1: Oprema, ki ni sestavni del visokonapetostne opreme, je obravnavana v standardu IEC 60204-1:2016.
OPOMBA 2: V tem dokumentu izraz »električni« zajema tako električne kot elektronske zadeve (tj. električna oprema pomeni tako električno kot tudi elektronsko opremo).
OPOMBA 3: Ta dokument se ne uporablja za neodvisne visokonapetostne napajalne inštalacije, za katere obstajajo posebni standardi IEC.
Električna oprema, ki je zajeta v tem dokumentu, se začne na točki povezave z napajanjem električne opreme stroja (glej točko 5.1).
OPOMBA 4: Zahteve za visokonapetostne napajalne inštalacije najdete v standardu IEC 61936-1. Ta dokument je splošni varnostni standard. Ne zajema vseh zahtev (npr. varovanja, spajanja ali nadzora), ki so potrebne ali zahtevane zaradi drugih standardov ali predpisov za zaščito osebja pred nevarnostmi, ki niso pogojene z virom električne energije. Vsaka vrsta stroja vključuje edinstvene zahteve, ki jih je treba izpolniti za zagotovitev ustrezne varnosti.
OPOMBA 5: Pri nekaterih strojih je lahko visokonapetostni napajalnik proizveden z blokovnim transformatorjem (avtotransformator), ki se napaja z nizkonapetostnim sistemom (npr. z nizkonapetostnim generatorjem).
OPOMBA 6: V okviru tega dokumenta izraz »oseba« zajema vse posameznike; »osebje« so tiste osebe, ki so dodeljene za uporabo ter vzdrževanje te opreme in ki jim je to naročil uporabnik ali njegov zastopnik.
Ta del standarda IEC 60204 vključuje zlasti (vendar ni omejen na) stroje, kot je opredeljeno v točki 3.29
(Dodatek A navaja primere strojev, katerih električno opremo je mogoče zajeti s tem dokumentom.).
Za zaščito pred električnim udarom z visokonapetostno opremo se ta dokument nanaša na standard IEC 61936-1. V zvezi z nizkonapetostno opremo se ta dokument nanaša na standard IEC 602041: 2016.
OPOMBA 7: V visokonapetostnih in nizkonapetostnih standardih se uporabljajo različni izrazi za zaščito pred električnim udarom. V visokonapetostnih standardih se uporabljata izraza »neposredni stik« in »posredni stik«, v nizkonapetostnih standardih pa se uporabljata izraza »osnovna zaščita« in »zaščita ob okvari«.
Dodatne in posebne zahteve lahko veljajo za električno opremo strojev, ki:
– se uporabljajo na prostem (tj. zunaj zgradb ali drugih zaščitnih struktur);
– uporabljajo, obdelujejo ali proizvajajo potencialno eksplozivni material (na primer barvo ali žagovino);
– so namenjeni uporabi v potencialno eksplozivnih in/ali vnetljivih atmosferah;
– predstavljajo posebna tveganja pri proizvodnji ali uporabi nekaterih materialov;
– se uporabljajo v rudnikih.
Nevarnosti, ki so posledica hrupa in vibracij, niso obravnavane v tem dokumentu.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN IEC 60204-11:2019
01-julij-2019
Nadomešča:
SIST EN 60204-11:2001
Varnost strojev - Električna oprema strojev - 11. del: Zahteve za VN opremo za
napetosti nad 1000 V a.c. ali 1500 V d.c., vendar ne nad 36 kV (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(IEC
60204-11:2018)
Sicherheit von Maschinen - Elektrische Ausrüstung von Maschinen - Teil 11:
Anforderungen an Hochspannungsausrüstung für Spannungen über 1000 V
Wechselspannung oder 1500 V Gleichspannung aber nicht über 36 kV (IEC 60204-
11:2018)
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)
Ta slovenski standard je istoveten z: EN IEC 60204-11:2019
ICS:
13.110 Varnost strojev Safety of machinery
SIST EN IEC 60204-11:2019 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN IEC 60204-11:2019
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SIST EN IEC 60204-11:2019
EUROPEAN STANDARD EN IEC 60204-11
NORME EUROPÉENNE
EUROPÄISCHE NORM
January 2019
ICS 13.110; 29.020 Supersedes EN 60204-11:2000
English Version
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)
Sécurité des machines - Équipement électrique des Sicherheit von Maschinen - Elektrische Ausrüstung von
machines - Partie 11: Exigences pour les équipements Maschinen - Teil 11: Anforderungen an
fonctionnant à des tensions supérieures à 1 000 V en Hochspannungsausrüstung für Spannungen über 1000 V
courant alternatif ou 1 500 V en courant continu et ne Wechselspannung oder 1500 V Gleichspannung aber nicht
dépassant pas 36 kV über 36 kV
(IEC 60204-11:2018) (IEC 60204-11:2018)
This European Standard was approved by CENELEC on 2019-01-09. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard 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 European Standard 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, 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
© 2019 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 60204-11:2019 E
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SIST EN IEC 60204-11:2019
EN IEC 60204-11:2019 (E)
European foreword
The text of document 44/819/FDIS, future edition 2 of IEC 60204-11, prepared by IEC/TC 44 "Safety
of machinery - Electrotechnical aspects" was submitted to the IEC-CENELEC parallel vote and
approved by CENELEC as EN IEC 60204-11:2019.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2019-10-09
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2022-01-09
document have to be withdrawn
This document supersedes EN 60204-11:2000.
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, and supports essential requirements of EU
Directive(s).
For the relationship with EU Directive(s) see informative Annex ZZ, which is an integral part of this
document.
Endorsement notice
The text of the International Standard IEC 60204-11:2018 was approved by CENELEC as a European
Standard without any modification.
IEC 60038 NOTE Harmonized as EN 60038
IEC 60034 (series) NOTE Harmonized as EN 60034 (series)
1
IEC 60034-1:2017 NOTE Harmonized as EN 60034-1 (not modified)
IEC 60034-15 NOTE Harmonized as EN 60034-15
IEC 60071-1 NOTE Harmonized as EN 60071-1
IEC 60273 NOTE Harmonized as HD 578 S1
IEC 60364-4-41 NOTE Harmonized as HD 60364-4-41
IEC 60364-4-42 NOTE Harmonized as HD 60364-4-42
IEC 60660 NOTE Harmonized as EN 60660
IEC 61230 NOTE Harmonized as EN 61230
IEC 61800-5-2 NOTE Harmonized as EN 61800-5-2
IEC 62271-1 NOTE Harmonized as EN 62271-1
IEC 62271-100 NOTE Harmonized as EN 62271-100
IEC 62271-200 NOTE Harmonized as EN 62271-200
IEC 62305 (series) NOTE H armonized as EN 62305 (series)
1
To be published. Stage at time of publication: FprEN 60034-1:2017.
2
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SIST EN IEC 60204-11:2019
EN IEC 60204-11:2019 (E)
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.
Publication Year Title EN/HD Year
IEC 60071-2 1996 Insulation co-ordination - Part 2: EN 60071-2 1997
Application guide
IEC 60076-5 - Power transformers - Part 5: Ability to EN 60076-5 2006
withstand short circuit
IEC 60204-1 (mod) 2016 Safety of machinery - Electrical equipment EN 60204-1 2018
of machines - Part 1: General requirements
IEC 60364-5-54 2011 Low-voltage electrical installations - Part 5- HD 60364-5-54 2011
54: Selection and erection of electrical
equipment - Earthing arrangements and
protective conductors
- - + A11 2017
2
IEC 60417 1973 Graphical symbols for use on equipment. - -
Index, survey and compilation of the single
sheets.
IEC 60445 - Basic and safety principles for man- EN 60445 2010
machine interface, marking and
identification – Identification of equipment
terminals, conductor terminations and
conductors
2
IEC 60529 2001 Degrees of protection provided by - -
enclosures (IP Code)
IEC 60865-1 - Short-circuit currents - Calculation of EN 60865-1 2012
effects - Part 1: Definitions and calculation
methods
IEC 61800 series Adjustable speed electrical power drive EN 61800 series
systems - Part 1: General requirments -
Rating specifications for low voltage
adjustables speed d.c. power drive
systems
2
Dated as no equivalent European Standard exists.
3
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SIST EN IEC 60204-11:2019
EN IEC 60204-11:2019 (E)
Publication Year Title EN/HD Year
IEC 61936-1 (mod) 2010 Power installations exceeding 1 kV a.c. - EN 61936-1 2010
Part 1: Common rules
- - + AC 2013
+ A1 2014 + A1 2014
IEC 62061 - Safety of machinery - Functional safety of EN 62061 2005
safety-related electrical, electronic and
programmable electronic control systems
+A1 2013
+A2 2015
IEC 62271-102 - High-voltage switchgear and controlgear - EN IEC 62271-102 2018
Part 102: Alternating current disconnectors
and earthing switches
IEC 62271-103 - High-voltage switchgear and controlgear - EN 62271-103 2011
Part 103: Switches for rated voltages
above 1 kV up to and including 52 kV
IEC 62271-105 - High-voltage switchgear and controlgear - EN 62271-105 2012
Part 105: Alternating current switch-fuse
combinations for rated voltages above 1 kV
up to and including 52 kV
IEC 62271-107 - High-voltage switchgear and controlgear - EN 62271-107 2012
Part 107: Alternating current fused circuit-
switchers for rated voltages above 1 kV up
to and including 52 kV
IEC 62271-200 2011 High-voltage switchgear and controlgear - EN 62271-200 2012
Part 200: AC metal-enclosed switchgear
and controlgear for rated voltages above 1
kV and up to and including 52 kV
IEC 62271-201 - High-voltage switchgear and controlgear - EN 62271-201 2014
Part 201: AC solid-insulation enclosed
switchgear and controlgear for rated
voltages above 1 kV and up to and
including 52 kV
IEC 62745 - Safety of machinery - Requirements for EN 62745 2017
cableless control systems of machinery
ISO 3864-1 2011 Graphical symbols - Safety colours and - -
safety signs - Part 1: Design principles for
safety signs and safety markings
ISO 3864-2 2016 Graphical symbols_- Safety colours and - -
safety signs_- Part_2: Design principles for
product safety labels
ISO 7010 2011 Graphical symbols - Safety colours and EN ISO 7010 2012
safety signs - Registered safety signs
ISO 12100 Safety of machinery_- General principles EN ISO 12100 2010
for design_- Risk assessment and risk
reduction
ISO 13849-1 - Safety of machinery - Safety-related parts EN ISO 13849-1 2016
of control systems - Part 1: General
principles for design
4
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SIST EN IEC 60204-11:2019
EN IEC 60204-11:2019 (E)
Annex ZZ
(informative)
Relationship between this European standard and the essential health and
safety requirements of Directive 2006/42/EC aimed to be covered
This European Standard has been prepared under a Commission’s standardization request in the field
of machinery “M/396” to provide one voluntary means of conforming to Essential health and safety
requirements relating to the design and construction of machinery of Directive 2006/42/EC.
Once this standard is cited in the Official Journal of the European Union under that Directive
2006/42/EC, compliance with the normative clauses of this standard given in Table ZZ.1 confers,
within the limits of the scope of this standard, a presumption of conformity with the corresponding
health and safety requirements of that Directive 2006/42/EC, and associated EFTA regulations.
Table ZZ.1 – Correspondence between this European standard and
Annex I of Directive 2006/42/EC [OJ No L 157, 9 June 2006]
Essential health and
Clause(s) / sub-clause(s)
safety requirements of Remarks / Notes
of this EN
Directive 2006/42/EC
1.1.3 7.10 By reference to EN 61936-1
1.1.4 4.7; 18 By reference to sub-clauses 7.2.6 and 15.2 of EN
60204-1.
1.1.5 4.6
1.1.6 4.7; 18 Ergonomics refers to installation of HV equipment.
HV equipment is not for frequent handling by
operators; ergonomics must be considered at
installation.
1.2.1 5.3 to 5.6, 6, 7, 9 Amended by references to IEC 61936-1 and IEC
60204-1.
1.2.2 5.3, 5.4, 5.5, 5.6, 10, 11
1.2.4 9
1.2.4.1 5.3 to 5.6, 9
1.2.4.2 5.3 to 5.6, 9
In conjunction with clause 9 of Part 1, IEC 60204
1.2.4.3 9
1.2.4.4 9
1.2.5 9
1.2.6 7.5, 9
1.3.1 18
1.3.2 18 This requirement is covered by maintenance
instructions on ageing materials.
1.3.3 7.9
1.3.7 4.2, 6.2, 12.3, 13.8.1 HV equipment provides protection against
hazardous mechanical (moving) and electrical
parts.
1.4.1 With HV equipment the protection against
4.2, 6.2, 12.3, 13.8.1
hazardous mechanical (moving) electrical parts is
5
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SIST EN IEC 60204-11:2019
EN IEC 60204-11:2019 (E)
Essential health and
Clause(s) / sub-clause(s)
safety requirements of Remarks / Notes
of this EN
Directive 2006/42/EC
1.4.2 combined.
1.4.2.1
1.4.2.2
1.5.1 4.2; 4.3; 5; 6; 7; 8; 9; 10; 11; Protection against electrical hazards is essential
12; 13; 14; 15;16 subject of the entire document.
1.5.2 4.1, 5.5
1.5.5 12.4
1.5.6 7.11
1.5.7 7.10; 7.11
1.5.11 4.4.2
1.5.16 7.8
1.6.1 12
1.6.2 12
1.6.3 5
1.7.1 17
1.7.1.1 18
1.7.1.2 9; 10
1.7.2 17; 18
1.7.3 17.1
1.7.4 18
WARNING 1 — Presumption of conformity stays valid only as long as a reference to this European
standard is maintained in the list published in the Official Journal of the European Union. Users of this
standard should consult frequently the latest list published in the Official Journal of the European
Union.
WARNING 2 — Other Union legislation may be applicable to the product(s) falling within the scope of
this standard.
6
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SIST EN IEC 60204-11:2019
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
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SIST EN IEC 60204-11:2019
– 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
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SIST EN IEC 60204-11:2019
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
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SIST EN IEC 60204-11:2019
– 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 .
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