SIST EN IEC 62477-1:2024

Safety requirements for power electronic converter systems and equipment - Part 1: General (IEC 62477-1:2022)

This part of IEC 62477 applies to power electronic converter systems (PECS), any specified
accessories, and 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 not exceeding
1 000 V AC or 1 500 V DC.
This document also applies to PECS which intentionally emit or receive radio waves for the
purpose of radio communication.
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);
• low voltage stabilized DC power supplies;
• bidirectional power converters.
For PECS and their specified accessories 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 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.
Guidance for use of this group safety publication for product committees is given in Annex S.
This document
• establishes a common terminology for safety aspects relating to PECS,
• 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 PECS portion of
products that contain PECS,
• 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, and
• specifies minimum requirements to reduce risks with respect to PECS designed as
pluggable and permanently connected equipment, whether it consists of a system of
interconnected units or independent units, subject to installing, operating and maintaining
the PECS in the manner prescribed by the manufacturer.
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), and
• electrical equipment and systems for railways applications and electric vehicles.

Sicherheitsanforderungen an Leistungshalbleiter-Umrichtersysteme und -betriebsmittel - Teil 1: Allgemeines (IEC 62477-1:2022)

Exigences de sécurité applicables aux systèmes et matériels électroniques de conversion de puissance - Partie 1: Généralités (IEC 62477-1:2022)

L'IEC 62477-1:2022 s'applique aux systèmes électroniques de conversion de puissance (PECS), à tout accessoire spécifié, ainsi qu'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, qui ont pour principale fonction la conversion de puissance électrique, d'une tension système assignée qui ne dépasse pas 1 000 V en courant alternatif ou 1 500 V en courant continu.
Le présent document s'applique également aux PECS qui émettent ou reçoivent intentionnellement des ondes radioélectriques à des fins de radiocommunication.
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 (PDS, Power Drive Systems);

   
• alimentations sans interruption (ASI) autonomes;

   
• alimentations stabilisées basse tension en courant continu;

   
• convertisseurs de puissance bidirectionnels.

Pour les PECS et leurs accessoires spécifiés pour lesquels il n'existe pas de norme de produits, le présent document spécifie des exigences minimales pour les aspects de sécurité.
Le présent 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 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.
Les recommandations relatives à l'utilisation de la présente publication groupée de sécurité pour les comités de produits sont données à l'Annexe S.
Le présent document

   
• établit une terminologie commune applicable aux aspects de sécurité concernant les matériels et les PECS,

   
• établit les exigences minimales pour la coordination des aspects de sécurité des parties interconnectées au sein d'un PECS,

   
• établit une base commune applicable aux exigences minimales de sécurité de la partie du convertisseur électronique de puissance (PEC) des produits qui comprennent un PECS,

   
• spécifie les exigences qui permettent de réduire les risques d'incendie, de choc électrique, 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, et

   

Varnostne zahteve za močnostne elektronike pretvorniške sisteme in opreme - 1. del: Splošno (IEC 62477-1:2022)

General Information

• Status: Published
• Public Enquiry End Date: 17-Jan-2021
• Publication Date: 05-Mar-2024
• ICS: 29.200 - Rectifiers. Convertors. Stabilized power supply
• Technical Committee: MOV - Measuring equipment for electromagnetic quantities
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 24-Oct-2023
• Due Date: 29-Dec-2023
• Completion Date: 06-Mar-2024
• Directive: 2014/35/EU - Directive 2014/35/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of electrical equipment designed for use within certain voltage limits
• Ref Project: EN IEC 62477-1:2023 - Safety requirements for power electronic converter systems and equipment - Part 1: General

Relations

• Revised: SIST EN 62477-1:2012/A11:2014 - Safety requirements for power electronic converter systems and equipment - Part 1: General
• Effective Date: 26-Jul-2021
• Revised: SIST EN 62477-1:2012/A12:2021 - Safety requirements for power electronic converter systems and equipment - Part 1: General
• Effective Date: 26-Jul-2021
• Revised: SIST EN 62477-1:2012/A1:2017 - Safety requirements for power electronic converter systems and equipment - Part 1: General (IEC 62477-1:2012/A1:2016)
• Effective Date: 26-Jul-2021

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN IEC 62477-1:2024
01-april-2024
Varnostne zahteve za močnostne elektronike pretvorniške sisteme in opreme - 1.
del: Splošno (IEC 62477-1:2022)
Safety requirements for power electronic converter systems and equipment - Part 1:
General (IEC 62477-1:2022)
Sicherheitsanforderungen an Leistungshalbleiter-Umrichtersysteme und -betriebsmittel -
Teil 1: Allgemeines (IEC 62477-1:2022)
Exigences de sécurité applicables aux systèmes et matériels électroniques de
conversion de puissance - Partie 1: Généralités (IEC 62477-1:2022)
Ta slovenski standard je istoveten z: EN IEC 62477-1:2023
ICS:
29.200 Usmerniki. Pretvorniki. Rectifiers. Convertors.
Stabilizirano električno Stabilized power supply
napajanje
SIST EN IEC 62477-1:2024 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN IEC 62477-1:2024

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SIST EN IEC 62477-1:2024


EUROPEAN STANDARD EN IEC 62477-1

NORME EUROPÉENNE

EUROPÄISCHE NORM October 2023
ICS 29.200 Supersedes EN 62477-1:2012; EN 62477-
1:2012/A11:2014; EN 62477-1:2012/A1:2017; EN 62477-
1:2012/A12:2021
English Version
Safety requirements for power electronic converter systems and
equipment - Part 1: General
(IEC 62477-1:2022)
Exigences de sécurité applicables aux systèmes et Sicherheitsanforderungen an Leistungselektronik-
matériels électroniques de conversion de puissance - Umrichtersysteme und -betriebsmittel - Teil 1: Allgemeines
Partie 1: Généralités (IEC 62477-1:2022)
(IEC 62477-1:2022)
This European Standard was approved by CENELEC on 2023-08-09. 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye 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
© 2023 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
 Ref. No. EN IEC 62477-1:2023 E

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SIST EN IEC 62477-1:2024
EN IEC 62477-1:2023 (E)
European foreword
The text of document 22/355/FDIS, future edition 2 of IEC 62477-1, 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 62477-1:2023.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2024-05-09
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2026-08-09
document have to be withdrawn
This document supersedes EN 62477-1:2012 and all of its amendments and corrigenda (if any).
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.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 62477-1:2022 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 standard indicated:
IEC 60068-1:2013 NOTE Approved as EN 60068-1:2014 (not modified)
IEC 60068-2-14 NOTE Approved as EN IEC 60068-2-14
IEC 60068-2-31:2008 NOTE Approved as EN 60068-2-31:2008 (not modified)
IEC 60073:2002 NOTE Approved as EN 60073:2002 (not modified)
IEC 60085 NOTE Approved as EN 60085
IEC 60112:2020 NOTE Approved as EN IEC 60112:2020 (not modified)
IEC 60204-1:2016 NOTE Approved as EN
...

SLOVENSKI STANDARD
oSIST prEN IEC 62477-1:2021
01-januar-2021
Varnostne zahteve za močnostno elektroniko pretvorniških sistemov in opreme -
1. del: Splošno
Safety requirements for power electronic converter systems and equipment - Part 1:
General
Sicherheitsanforderungen an Leistungshalbleiter-Umrichtersysteme und -betriebsmittel -
Teil 1: Allgemeines
Exigences de sécurité applicables aux systèmes et matériels électroniques de
conversion de puissance - Partie 1: Généralités
Ta slovenski standard je istoveten z: prEN IEC 62477-1:2020
ICS:
29.200 Usmerniki. Pretvorniki. Rectifiers. Convertors.
Stabilizirano električno Stabilized power supply
napajanje
oSIST prEN IEC 62477-1:2021 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN IEC 62477-1:2021

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oSIST prEN IEC 62477-1:2021

22/325/CDV

COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 62477-1 ED2
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2020-10-30 2021-01-22
SUPERSEDES DOCUMENTS:
22/309/CD, 22/315A/CC

IEC TC 22 : POWER ELECTRONIC SYSTEMS AND EQUIPMENT
SECRETARIAT: SECRETARY:
Switzerland Ms Chuanhong Zhao
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:

TC 34,TC 61,TC 62,TC 64,TC 66,TC 69,TC 82,
TC 88,TC 96,TC 105,TC 108,TC 109,TC 114,
Other TC/SCs are requested to indicate their interest, if any,
TC 120,TC 121 in this CDV to the secretary.
FUNCTIONS CONCERNED:
EMC ENVIRONMENT QUALITY ASSURANCE SAFETY
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft for
Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.

This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of which they
are aware and to provide supporting documentation.

TITLE:
Safety requirements for power electronic converter systems and equipment - Part 1: General

PROPOSED STABILITY DATE: 2024

NOTE FROM TC/SC OFFICERS:
The comparison version between this CDV and Ed.1.1 is circulated concurrently as 22/326/INF.

Copyright © 2020 International Electrotechnical Commission, IEC. All rights reserved. It is permitted to download this
electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee positions.
You may not copy or "mirror" the file or printed version of the document, or any part of it, for any other purpose without
permission in writing from IEC.

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oSIST prEN IEC 62477-1:2021
62477-1/Ed2/CDV © IEC (E) – 2 – 22/325/CDV
1 CONTENTS
2
3 FOREWORD . 14
4 INTRODUCTION . 17
5 1 Scope . 18
6 2 Normative references . 19
7 3 Terms and definitions . 21
8 4 Protection against hazards . 32
9 4.1 General . 32
10 4.2 Fault and abnormal operating conditions . 32
11 4.3 Short-circuit and overload protection . 33
12 4.3.1 General . 33
13 4.3.2 Input short-circuit withstand strength and output short-circuit current
14 ability. 34
15 4.3.2.1 General . 34
16 4.3.2.2 Conditional short-circuit current (I ) on input ports . 35
cc
17 4.3.2.3 Short time withstand current (Icw) on input ports . 35
18 4.3.2.4 Output short-circuit current ability . 35
19 4.3
...