EN IEC 62477-2:2018

Safety requirements for power electronic converter systems and equipment - Part 2: Power electronic converters from 1 000 V AC or 1 500 V DC up to 36 kV AC or 54 kV DC

IEC 62477-2:2018 applies to power electronic converter systems (PECS) and equipment, their components for electronic power conversion and electronic power switching, including the means for their control, protection, monitoring and measurement, such as with the main purpose of converting electric power, with rated system voltages from 1 000 V AC or 1 500 V DC up to 36 kV AC or 54 kV DC. This document can also be used as a reference standard for product committees producing product standards for  
adjustable speed electric power drive systems (PDS),
standalone uninterruptible power systems (UPS), and
stabilized DC power supplies.  For PECS for which no product standard exists, this document provides minimum requirements for safety aspects. This document has the status of a group safety publication in accordance with IEC Guide 104 for power electronic converter systems and equipment for solar, wind, tidal, wave, fuel cell or similar energy sources. According to IEC Guide 104, one of the responsibilities of technical committees is, wherever applicable, to make use of basic safety publications and/or group safety publications in the preparation of their product standards. This document  
establishes a common terminology for safety aspects relating to PECS and equipment,
establishes minimum requirements for the coordination of safety aspects of interrelated parts within a PECS,
establishes a common basis for minimum safety requirements for the PEC portion of products that contain PEC,
specifies requirements to reduce risks of fire, electric shock, thermal, energy and mechanical hazards, during use and operation and, where specifically stated, during service and maintenance,
specifies minimum requirements to reduce risks with respect to pluggable and permanently connected equipment, whether it consists of a system of interconnected units or independent units, subject to installing, operating and maintaining the equipment in the manner prescribed by the manufacturer,
establishes an arc fault rating label requirement with testing instructions for PEC and PECS, and
covers power electronic converters and systems in open type design, which are catalog (pre-defined commercially available) power electronic converters and systems or engineered solutions from same.  This document does not cover  
telecommunications apparatus other than power supplies to such apparatus,
functional safety aspects as covered by, for example, IEC 61508 (all parts),
electrical equipment and systems for railways applications and electric vehicles, and
power electronic converters and systems in open type design, which are – in their major part – dimensioned, designed and constructed according to the user’s individual requirements and specifications and follow power installation standards, for example IEC 61936-1.

Sicherheitsanforderungen an leistungselektronische Umrichtersysteme und Betriebsmittel - Teil 2: Leistungselektronische Umrichter von 1 000 V a.c. oder 1 500 V d.c. bis 36 kV a.c. oder 54 kV d.c.

Exigences de sécurité applicables aux systèmes et matériels électroniques de conversion de puissance - Partie 2: Convertisseurs électroniques de puissance entre 1 000 V en courant alternatif ou 1 500 V en courant continu et 36 kV en courant alternatif ou 54 kV en courant continu

L'IEC 62477-2:2018 s'applique aux matériels et aux systèmes électroniques de conversion de puissance (SECP), à leurs composants pour la conversion de puissance électronique et la commande (ouverture et fermeture) électronique de puissance, y compris les moyens de commande, de protection, de surveillance et de mesure, ayant pour principale fonction la conversion de puissance électrique, d'une tension système assignée entre 1 000 V en courant alternatif ou 1 500 V en courant continu et 36 kV en courant alternatif ou 54 kV en courant continu. Le présent document peut également être utilisé comme norme de référence par les comités de produits qui élaborent des normes de produits applicables aux  
systèmes d'entraînement électrique de puissance à vitesse variable,
alimentations sans interruption (ASI) autonomes, et
alimentations stabilisées en courant continu.  Pour les SECP pour lesquels il n'existe pas de norme de produit, le présent document spécifie des exigences minimales pour les aspects de sécurité. La présente document a le statut d’une publication groupée de sécurité conformément au Guide 104 de l'IEC applicable aux systèmes électroniques de conversion de puissance et équipements pour énergie solaire, éolienne, des marées, des vagues, des piles à combustible ou sources d’énergie analogues. Conformément au Guide 104 de l'IEC, il incombe aux comités d'études d'utiliser, dans toute la mesure du possible, les publications fondamentales de sécurité et/ou les publications groupées de sécurité pour l'élaboration de leurs normes de produits. Le présent document  
établit une terminologie commune applicable aux aspects de sécurité concernant les matériels et les SECP,
établit les exigences minimales pour la coordination des aspects de sécurité des parties interconnectées au sein d'un SECP,
établit une base commune applicable aux exigences minimales de sécurité de la partie du convertisseur électronique de puissance (CEP) des produits comprenant un CEP,
spécifie des exigences permettant de réduire les risques d'incendie et de choc électrique ainsi que les dangers thermiques, mécaniques et dus à l'énergie électrique, en cours d'utilisation et de fonctionnement et, lorsque cela est spécifiquement indiqué, au cours des opérations d'entretien et de maintenance,
spécifie les exigences minimales permettant de réduire ces types de risques concernant les matériels enfichables et connectés en permanence, qu'ils soient constitués d'un système d'unités interconnectées ou d'unités indépendantes, faisant l'objet d'opérations d'installation, de fonctionnement et d'entretien du matériel tel que spécifié par le constructeur,
établit les exigences en matière de marquage de caractéristiques assignées de défaut d'arc avec des instructions d'essai pour les CEP et SECP, et
couvre les convertisseurs et systèmes électroniques de puissance de type ouvert, qui sont des convertisseurs et systèmes électroniques de puissance de catalogue (prédéfinis comme étant disponibles sur le marché) ou des solutions techniques de catalogue.  Le présent document ne couvre pas  
les appareils de télécommunications autres que les alimentations pour ce type d'appareil,
les aspects

Varnostne zahteve za močnostne polprevodniške pretvorniške sisteme in opremo - 2. del: Močnostni polprevodniški pretvorniki iz 1000 V izmenično ali 1500 V enosmerno v 36 kV izmenično ali 54 kV enosmerno (IEC 62477-2:2018)

Ta del standarda IEC 62477 se nanaša na močnostne električne pretvorniške sisteme (PECS) in opremo, njihove dele za električno močnostno pretvorbo in električno močnostno preklapljanje, vključno s sredstvi za njihov nadzor, zaščito, nadzorovanje in merjenje, kot z glavnim namenom za pretvorbo električne energije z nazivnimi sistemskimi napetostmi od 1000 voltov izmenične napetosti ali 1500 voltov enosmerne napetosti do 36 kV izmenične napetosti ali 54 kV enosmerne napetosti.
Ta dokument lahko kot referenčni standard uporabljajo odbori za proizvode, ki pripravljajo standarde za proizvode za:
• električne pogonske sisteme z nastavljivo hitrostjo (PDS),
• samostojne sisteme za neprekinjeno napajanje (UPS) in
• napajalnike za stabilizirano napajanje z enosmernim tokom.
Ta dokument določa minimalne varnostne zahteve za močnostne električne pretvorniške sisteme, ki nimajo določenega standarda za proizvod.
Ta dokument ima status publikacije skupinske varnosti, ki je v skladu z vodilom IEC 104 za električne močnostne pretvorniške sisteme in opremo za energijske vire na osnovi sonca, vetra, plimovanja, valovanja, gorivnih celic ali podobnih virov.
Glede na vodilo IEC 104 je ena od dolžnosti tehničnih odborov, da pri pripravi standardov za proizvode uporabijo osnovne varnostne publikacije in/ali publikacije skupinske varnosti, če je to mogoče.
Ta dokument:
• vzpostavlja skupno terminologijo za varnostne vidike v zvezi z močnostnimi električnimi pretvorniškimi sistemi in opremo,
• določa minimalne zahteve za usklajevanje varnostnih vidikov medsebojno povezanih delov znotraj močnostnih električnih pretvorniških sistemov,
• vzpostavlja skupno osnovo za minimalne varnostne zahteve za tiste proizvode, ki vsebujejo močnostne električne pretvornike,
• določa zahteve za zmanjšanje tveganja požara, elektrošoka, toplotnih, energijskih in mehaničnih tveganj med uporabo, delovanjem ter, kjer je to navedeno, popravilom in vzdrževanjem,
• določa minimalne zahteve za zmanjšane tveganja pri opremi, ki se priklopi ali je stalno priklopljena, če je sestavljena iz sistema vzajemno povezanih enot ali samostojnih enot, upoštevajoč namestitev, uporabo in vzdrževanje opreme na način, ki ga je predpisal proizvajalec,
• določa zahtevano oznako napake obloka z navodili za preskušanje močnostnih električnih pretvornikov in močnostnih električnih pretvorniških sistemov ter
• zajema elektronske močnostne pretvornike in sisteme odprtega tipa, ki so katalogizirani (vnaprej določeni in komercialno dostopni) kot močnostni električni pretvorniki in sistemi ali njihove inženirske rešitve.
Ta dokument ne zajema:
• telekomunikacijskih naprav, ki niso napajalniki teh naprav,
• funkcionalne varnosti, ki jo zajema na primer standard IEC 61508 (vsi deli),
• električne opreme in sistemov za uporabo pri železnici in za elektronska vozila ter
• elektronskih močnostnih pretvornikov in sistemov odprtega tipa, ki so večinoma dimenzionirani, oblikovani in izdelani v skladu z individualnimi zahtevami in specifikacijami uporabnika ter ustrezajo standardom za namestitev električnih inštalacij, na primer standardu IEC 61936-1.

General Information

• Status: Published
• Publication Date: 27-Sep-2018
• Withdrawal Date: 25-Jul-2021
• ICS: 29.200 - Rectifiers. Convertors. Stabilized power supply
• Technical Committee: CLC/TC 22X - Power electronics
• Drafting Committee: IEC/TC 22 - IEC_TC_22
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 28-Sep-2018
• Completion Date: 28-Sep-2018
• Ref Project: SIST EN IEC 62477-2:2019 - Safety Requirements for Power Electronic Converter Systems and Equipment - Part 2: Power Electronic Converters from 1000 V a.c. or 1500 V d.c. up to 36 kV a.c. or 54 kV d.c. (IEC 62477-2:2018)

Standards Content (Sample)

SLOVENSKI STANDARD
01-februar-2019
9DUQRVWQH]DKWHYH]DPRþQRVWQHSROSUHYRGQLãNHSUHWYRUQLãNHVLVWHPHLQRSUHPR
GHO0RþQRVWQLSROSUHYRGQLãNLSUHWYRUQLNLL]9L]PHQLþQRDOL9
HQRVPHUQRYN9L]PHQLþQRDOLN9HQRVPHUQR,(&
Safety Requirements for Power Electronic Converter Systems and Equipment - Part 2:
Power Electronic Converters from 1000 V a.c. or 1500 V d.c. up to 36 kV a.c. or 54 kV
d.c. (IEC 62477-2:2018)
Exigences de sécurité applicables aux systèmes et matériels électroniques de
conversion de puissance - Partie 2: Convertisseurs électroniques de puissance entre 1
000 V en courant alternatif ou 1 500 V en courant continu et 36 kV en courant alternatif
ou 54 kV en courant continu (IEC 62477-2:2018)
Exigences de sécurité applicables aux systèmes et matériels électroniques de
conversion de puissance - Partie 2: Convertisseurs électroniques de puissance entre 1
000 V en courant alternatif ou 1 500 V en courant continu et 36 kV en courant alternatif
ou 54 kV en courant continu (IEC 62477-2:2018)
Ta slovenski standard je istoveten z: EN IEC 62477-2:2018
ICS:
29.200 8VPHUQLNL3UHWYRUQLNL Rectifiers. Convertors.
6WDELOL]LUDQRHOHNWULþQR Stabilized power supply
QDSDMDQMH
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 62477-2

NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2018
ICS 29.200
English Version
Safety requirements for power electronic converter systems and
equipment - Part 2: Power electronic converters from 1 000 V
AC or 1 500 V DC up to 36 kV AC or 54 kV DC
(IEC 62477-2:2018)
Exigences de sécurité applicables aux systèmes et Sicherheitsanforderungen an Leistungshalbleiter-
matériels électroniques de conversion de puissance - Partie Umrichtersysteme und -Betriebsmittel - Teil 2:
2: Convertisseurs électroniques de puissance entre 1 000 V Leistungselektronik Umrichter von 1 000 V a.c. oder 1 500
en courant alternatif ou 1 500 V en courant continu et 36 kV V d.c. bis 36 kV a.c. oder 54 kV d.c.
en courant alternatif ou 54 kV en courant continu (IEC 62477-2:2018)
(IEC 62477-2:2018)
This European Standard was approved by CENELEC on 2018-07-26. 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
© 2018 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 62477-2:2018 E

European foreword
The text of document 22/290/FDIS, future edition 1 of IEC 62477-2, prepared by IEC/TC 22 "Power
electronic systems and equipment" was submitted to the IEC-CENELEC parallel vote and approved by
CENELEC as EN IEC 62477-2:2018.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2019-04-26
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2021-07-26
document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Endorsement notice
The text of the International Standard IEC 62477-2:2018 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards
indicated:
IEC 60071-1:2006 NOTE Harmonized as EN 60071-1:2006 (not modified)
IEC 60071-2:1996 NOTE Harmonized as EN 60071-2:1997 (not modified)
IEC 60146-1-1 NOTE Harmonized as EN 60146-1-1
IEC 60243-1:2013 NOTE Harmonized as EN 60243-1:2013 (not modified)
IEC 60529:1989 NOTE Harmonized as EN 60529:1991 (not modified)
IEC 60721-3 series NOTE Harmonized as EN 60721-3 series
IEC 60990:2016 NOTE Harmonized as EN 60990:2016 (not modified)
IEC 61936-1 NOTE Harmonized as EN 61936-1
IEC 62271-200:2011 NOTE Harmonized as EN 62271-200:2012 (not modified)
IEC 62271-201:2014 NOTE Harmonized as EN 62271-201:2014 (not modified)
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 60204-11 -  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 60417-DB -  Graphical symbols for use on equipment - -
IEC 60617-DB -  Graphical symbols for diagrams - -
IEC 60730-1 -  Automatic electrical controls - Part 1: EN 60730-1 -
General requirements
IEC 61230 -  Live working - Portable equipment for EN 61230 -
earthing or earthing and short-circuiting
IEC 62271-102 -  High-voltage switchgear and controlgear - EN IEC 62271-102 -
Part 102: Alternating current disconnectors
and earthing switches
IEC 62477-1 2012 Safety requirements for power electronic EN 62477-1 2012
converter systems and equipment - Part 1:
General
- -  + A11 2014
+ A1 2016  + A1 2017
IEC Guide 104 -  The preparation of safety publications and - -
the use of basic safety publications and
group safety publications
ISO/IEC Guide 51 2014 Safety aspects - Guidelines for their - -
inclusion in standards
IEC 62477-2 ®
Edition 1.0 2018-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
GROUP SAFETY PUBLICATION
PUBLICATION GROUPÉE DE SÉCURITÉ

Safety requirements for power electronic converter systems and equipment –

Part 2: Power electronic converters from 1 000 V AC or 1 500 V DC up to 36 kV

AC or 54 kV DC
Exigences de sécurité applicables aux systèmes et matériels électroniques de

conversion de puissance –
Partie 2: Convertisseurs électroniques de puissance entre 1 000 V en courant

alternatif ou 1 500 V en courant continu et 36 kV en courant alternatif ou 54 kV

en courant continu
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.200 ISBN 978-2-8322-5787-6

– 2 – IEC 62477-2:2018 © IEC 2018
CONTENTS
FOREWORD . 7
INTRODUCTION . 9
1 Scope . 10
2 Normative references . 11
3 Terms and definitions . 11
4 Protection against hazards . 12
4.1 General . 12
4.2 Fault and abnormal conditions . 13
4.3 Short-circuit and overload protection . 14
4.3.1 General . 14
4.3.2 Specification of input short-circuit withstand strength and output short-
circuit current ability . 14
4.3.3 Short-circuit coordination (backup protection) . 14
4.3.4 Protection by several devices . 14
4.3.5 Input ports short time withstand current, I . 14
cw
4.4 Protection against electric shock . 14
4.4.1 General . 14
4.4.2 Decisive voltage class . 15
4.4.3 Provision for basic protection . 16
4.4.4 Provision for fault protection . 17
4.4.5 Enhanced protection . 18
4.4.6 Protective measures . 18
4.4.7 Insulation . 19
4.4.8 Compatibility with residual current-operated protective devices (RCD) . 24
4.4.9 Capacitor discharge . 24
4.5 Protection against electrical energy hazards . 26
4.5.1 Operator access areas. 26
4.5.2 Service access areas . 28
4.6 Protection against fire and thermal hazards . 28
4.6.1 Circuits representing a fire hazard . 28
4.6.2 Components representing a fire hazard . 28
4.6.3 Fire enclosures . 28
4.6.4 Temperature limits . 29
4.6.5 Limited power sources . 29
4.7 Protection against mechanical hazards . 29
4.7.1 General . 29
4.7.2 Specific requirements for liquid cooled PECS . 29
4.8 Equipment with multiple sources of supply . 30
4.9 Protection against environmental stresses . 30
4.10 Protection against sonic pressure hazards . 30
4.10.1 General . 30
4.10.2 Sonic pressure and sound level . 31
4.11 Wiring and connections . 31
4.11.1 General . 31
4.11.2 Routing . 31
4.11.3 Colour coding . 31
4.11.4 Splices and connections . 31

IEC 62477-2:2018 © IEC 2018 – 3 –
4.11.5 Accessible connections . 31
4.11.6 Interconnections between parts of the PECS . 31
...