Uninterruptible power systems (UPS) - Part 1: Safety requirements

IEC 62040-1:2017 applies to movable, stationary, fixed or built-in UPS for use in low-voltage distribution systems and that are intended to be installed in an area accessible by an ordinary person or in a restricted access area as applicable, that deliver fixed frequency AC output voltage with port voltages not exceeding 1 000 V AC or 1 500 V DC and that include an energy storage device. It applies to pluggable and to permanently connected UPS, whether consisting of a system of interconnected units or of independent units, subject to installing, operating and maintaining the UPS in the manner prescribed by the manufacturer. This document specifies requirements to ensure safety for the ordinary person who comes into contact with the UPS and, where specifically stated, for the skilled person. The objective is to reduce risks of fire, electric shock, thermal, energy and mechanical hazards during use and operation and, where specifically stated, during service and maintenance. This product standard is harmonized with the applicable parts of group safety publication IEC 62477-1:2012 for power electronic converter systems and contains additional requirements relevant to UPS. This edition includes the following significant technical change with respect to the previous edition: the reference document has been changed from IEC 60950-1:2005 (safety for IT equipment) to IEC 62477-1 (group safety standard for power electronic converters).

Unterbrechungsfreie Stromversorgungssysteme (USV) - Teil 1: Sicherheitsanforderungen

Alimentations sans interruption (ASI) - Partie 1: Exigences de sécurité

IEC 62040-1:2017 s'applique aux ASI mobiles, stationnaires, fixes ou intégrées destinées à une utilisation dans des réseaux de distribution basse tension et à être installées dans une zone accessible par une personne ordinaire ou une zone d'accès restreint, selon le cas, qui fournissent une tension de sortie en courant alternatif à fréquence fixe avec des tensions au niveau de la connexion ne dépassant pas 1 000 V en courant alternatif ou 1 500 V en courant continu, et qui incluent un dispositif de stockage de l'énergie. Elle s'applique aux ASI alimentées par une prise de courant et aux ASI raccordées en poste fixe, qu'elles soient sous la forme d'un système d'équipements interconnectés ou d'équipements indépendants destinés à être installés, à fonctionner et à être entretenus de la manière prescrite par le constructeur. Le présent document spécifie des exigences destinées à garantir la sécurité des personnes ordinaires qui peuvent entrer en contact avec l'ASI et, lorsque cela est spécifiquement précisé, des personnes qualifiées. L'objectif est de réduire les risques d'incendie, de choc électrique, ainsi que les risques thermiques, mécaniques ou liés au niveau d'énergie pendant l'utilisation, le fonctionnement et, si spécifiquement indiqué, pendant l'entretien et la maintenance. Cette norme de produits a été harmonisée avec les parties applicables de la publication groupée de sécurité IEC 62477-1:2012 relative aux systèmes électroniques de conversion de puissance et contient des exigences supplémentaires pertinentes pour les ASI. Cette édition inclut la modification technique majeure suivante par rapport à l'édition précédente: le document de référence n'est plus l'IEC 60950-1:2005 (sécurité applicable aux matériels de traitement de l'information) mais l'IEC 62477-1 (norme groupée de sécurité applicable aux convertisseurs électroniques de puissance).

Sistemi z neprekinjenim napajanjem (UPS) - 1. del: Varnostne zahteve (IEC 62040-1:2017)

Ta standard se uporablja za premične, stacionarne, fiksne ali vgrajene sisteme z neprekinjenim napajanjem za uporabo v nizkonapetostnih razdelilnih sistemih, ki so namenjeni vgradnji na katero koli mesto, dostopno laikom, ali na ustrezne lokacije z omejenim dostopom, ki pri fiksni frekvenci zagotavljajo izhodno izmenično napetost, pri čemer vrednosti na vratih ne presegajo 1000 V izmenične napetosti ali 1500 V enosmerne napetosti, ter vključujejo napravo za shranjevanje električne energije. Uporablja se za stalno priklopljene sisteme z neprekinjenim napajanjem, če je sistem sestavljen iz vzajemno povezanih enot ali samostojnih enot, upoštevajoč namestitev, uporabo in vzdrževanje sistema z neprekinjenim napajanjem na način, ki ga je predpisal proizvajalec. Obstajajo tudi druge naprave. Ko se torej v besedilu tega dokumenta pojavi »baterija«, se to lahko razume kot »naprava za shranjevanje energije«. Ta dokument določa zahteve za zagotavljanje varnosti laikov, ki pridejo v stik s sistemom z neprekinjenim napajanjem, in (če je to izrecno omenjeno) strokovnjakov. Cilj je zmanjšanje tveganja požara, elektrošoka, toplotnih, energijskih in mehaničnih tveganj med uporabo, delovanjem ter, kjer je to navedeno, popravilom in vzdrževanjem. Ta standard za izdelke je usklajen z ustreznimi deli publikacije skupinske varnosti IEC 62477-1:2012 za električne močnostne pretvorniške sisteme in vsebuje dodatne zahteve, pomembne za sisteme z neprekinjenim napajanjem. Ta dokument ne zajema: – sistemov z neprekinjenim napajanjem brez enosmernega izhoda; – sistemov za delovanje na premičnih platformah, kar med drugim vključuje letala, ladje in motorna vozila; – zunanjih izmeničnih in enosmernih vhodnih in izhodnih električnih razdelilnikov, ki so zajeti v posebnih standardih za izdelke; – samostojnih sistemov s statičnim prenosom (STS), ki so zajeti v standardu IEC 62310-1; – sistemov, ki izhodno napetost pridobivajo iz vrteče se naprave; – telekomunikacijskih naprav, ki niso sistemi z neprekinjenim napajanjem teh naprav; – funkcionalne varnosti, ki jo zajema standard IEC 61508 (vsi deli).

General Information

Status
Published
Publication Date
18-Jul-2019
Technical Committee
Drafting Committee
Current Stage
6060 - Document made available
Due Date
19-Jul-2019
Completion Date
19-Jul-2019

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SLOVENSKI STANDARD
SIST EN IEC 62040-1:2019
01-november-2019
Nadomešča:
SIST EN 62040-1:2009
SIST EN 62040-1:2009/A1:2013
Sistemi z neprekinjenim napajanjem (UPS) - 1. del: Varnostne zahteve (IEC 62040-
1:2017)

Uninterruptible power systems (UPS) - Part 1: Safety requirements (IEC 62040-1:2017)

Unterbrechungsfreie Stromversorgungssysteme (USV) - Teil 1: Allgemeine
Anforderungen und Sicherheitsanforderungen (IEC 62040-1:2017)

Alimentations sans interruption (ASI) - Partie 1: Exigences de sécurité (IEC 62040-

1:2017)
Ta slovenski standard je istoveten z: EN IEC 62040-1:2019
ICS:
29.200 Usmerniki. Pretvorniki. Rectifiers. Convertors.
Stabilizirano električno Stabilized power supply
napajanje
SIST EN IEC 62040-1:2019 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN IEC 62040-1:2019
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SIST EN IEC 62040-1:2019
EUROPEAN STANDARD EN IEC 62040-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2019
ICS 29.200 Supersedes EN 62040-1:2008 and all of its amendments
and corrigenda (if any)
English Version
Uninterruptible power systems (UPS) - Part 1: Safety
requirements
(IEC 62040-1:2017)

Alimentations sans interruption (ASI) - Partie 1: Exigences Unterbrechungsfreie Stromversorgungssysteme (USV) -

de sécurité Teil 1: Sicherheitsanforderungen
(IEC 62040-1:2017) (IEC 62040-1:2017)

This European Standard was approved by CENELEC on 2017-08-16. 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,

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 62040-1:2019 E
---------------------- Page: 3 ----------------------
SIST EN IEC 62040-1:2019
EN IEC 62040-1:2019 (E)
European foreword

The text of document 22H/217/FDIS, future edition 2 of IEC 62040-1, prepared by SC 22H

"Uninterruptible power systems (UPS)" of IEC/TC 22 "Power electronic systems and equipment" was

submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN IEC 62040-1:2019.

The following dates are fixed:

• latest date by which the document has to be implemented at national (dop) 2020-01-19

level by publication of an identical national standard or by endorsement

• latest date by which the national standards conflicting with the (dow) 2022-07-19

document have to be withdrawn

This document supersedes EN 62040-1:2008 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.

This document has been prepared under a mandate given to CENELEC by the European

Commission and the European Free Trade Association.
Endorsement notice

The text of the International Standard IEC 62040-1:2017 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 60076-11:2004 NOTE Harmonized as EN 60076-11:2004 (not modified)
IEC 60364-5-52 NOTE Harmonized as HD 60364-5-52
IEC 60947-1:2007 NOTE Harmonized as EN 60947-1:2007 (not modified)
IEC 60947-3:2008 NOTE Harmonized as EN 60947-3:2009 (not modified)
IEC 60947-6-1:2005 NOTE Harmonized as EN 60947-6-1:2005 (not modified)

IEC 60947-6-1:2005/A1:2013 NOTE Harmonized as EN 60947-6-1:2005/A1:2014 (not modified)

IEC 61347 (series) NOTE Harmonized as EN 61347 (series)
IEC 61439-1:2011 NOTE Harmonized as EN 61439-1:2011 (not modified)
IEC 61508 (series) NOTE Harmonized as EN 61508 (series)
IEC 62040-3:2011 NOTE Harmonized as EN 62040-3:2011 (not modified)
IEC 62310-1 NOTE Harmonized as EN 62310-1
IEC 62368-1:2014 NOTE Harmonized as EN 62368-1:2014/AC:2015 (not modified)
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SIST EN IEC 62040-1:2019
EN IEC 62040-1:2019 (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 60364-4-42 - Low-voltage electrical installations - Part 4-HD 60364-4-42 -
(mod) 42: Protection for safety - Protection
against thermal effects
IEC 60384-14 - Fixed capacitors for use in electronic EN 60384-14 -
equipment - Part 14: Sectional
specification - Fixed capacitors for
electromagnetic interference suppression
and connection to the supply mains
IEC/TR 60755 - General requirements for residual current - -
operated protective devices
IEC 60947-2 2006 Low-voltage switchgear and controlgear - EN 60947-2 2006
Part 2: Circuit-breakers

IEC 60950-1 (mod) 2005 Information technology equipment - Safety EN 60950-1 2006

- Part 1: General requirements
+ A11 2009
+ A12 2011
IEC 61000-2-2 2002 Electromagnetic compatibility (EMC) - PartE N 61000-2-2 2002
2-2: Environment - Compatibility levels for
low-frequency conducted disturbances and
signalling in public low-voltage power
supply systems
IEC 61008-1 (mod) - Residual current operated circuit-breakers EN 61008-1 -
without integral overcurrent protection for
household and similar uses (RCCBs) - Part
1: General rules
IEC 61009-1 (mod) - Residual current operated circuit-breakers EN 61009-1 -
with integral overcurrent protection for
household and similar uses (RCBOs) - Part
1: General rules
IEC 62040-2 2005 Uninterruptible power systems (UPS) -- EN 62040-2 2006
Part 2: Electromagnetic compatibility
(EMC) requirements
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SIST EN IEC 62040-1:2019
EN IEC 62040-1:2019 (E)
Publication Year Title EN/HD Year
IEC 62477-1 2012 Safety requirements for power electronic EN 62477-1 2012
converter systems and equipment - Part 1:
General
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SIST EN IEC 62040-1:2019
IEC 62040-1
Edition 2.0 2017-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Uninterruptible power systems (UPS) –
Part 1: Safety requirements
Alimentations sans interruption (ASI) –
Partie 1: Exigences de sécurité
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.200 ISBN 978-2-8322-4469-2

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: 7 ----------------------
SIST EN IEC 62040-1:2019
– 2 – IEC 62040-1:2017 © IEC 2017
CONTENTS

FOREWORD ........................................................................................................................... 4

INTRODUCTION ..................................................................................................................... 6

1 Scope .............................................................................................................................. 7

2 Normative references ...................................................................................................... 7

3 Terms and definitions ...................................................................................................... 8

4 Protection against hazards ............................................................................................ 15

5 Test requirements .......................................................................................................... 28

6 Information and marking requirements ........................................................................... 42

Annexes ............................................................................................................................... 49

Annex A (normative) Additional information for protection against electric shock ................... 50

Annex M (informative) Test probes for determining access .................................................. 51

Annex AA (informative) Minimum and maximum cross-section of copper conductors

suitable for connection to terminals for external conductor .................................................... 52

Annex BB (normative) Reference loads ................................................................................ 53

Annex CC (normative) Ventilation of lead-acid battery compartments .................................. 57

Annex DD (informative) Guidance for disconnection of batteries during shipment ................ 60

Annex EE (informative) Short-time withstand current test procedure – Guidance and

typical values ........................................................................................................................ 62

Annex FF (informative) Maximum heating effect in transformer tests.................................... 66

Annex GG (normative) Requirements for the mounting means of rack-mounted

equipment ............................................................................................................................. 68

Bibliography .......................................................................................................................... 70

Figure 101 – Examples of design of openings preventing vertical access ............................. 18

Figure 102 – Test circuit for load-induced change of reference potential – Single-

phase output ......................................................................................................................... 34

Figure 103 – Test circuit for load-induced change of reference potential – Three-phase

output ................................................................................................................................... 34

Figure 104 – Voltage backfeed warning label ........................................................................ 45

Figure M.101 – Jointed test finger (IP2X) .............................................................................. 51

Figure BB.1 – Reference resistive load ................................................................................. 53

Figure BB.2 – Reference inductive-resistive load (series) ..................................................... 54

Figure BB.3 – Reference inductive-resistive load (parallel) ................................................... 54

Figure BB.4 – Reference capacitive-resistive load (series) .................................................... 54

Figure BB.5 – Reference capacitive-resistive load (parallel) .................................................. 54

Figure BB.6 – Reference non-linear load .............................................................................. 55

Figure DD.1 – Precautionary label for products shipped with the battery disconnected ........ 60

Figure DD.2 – Precautionary label for products shipped with the battery connected ............. 61

Figure EE.1 – 3-wire test circuit for UPS short-time withstand current .................................. 62

Figure EE.2 – 4-wire test circuit for UPS short-time withstand current .................................. 63

Figure EE.3 – 2-wire test circuit for single phase UPS short-time withstand current ............. 64

Table 1 – Alphabetical list of terms ......................................................................................... 9

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SIST EN IEC 62040-1:2019
IEC 62040-1:2017 © IEC 2017 – 3 –

Table 101 – UPS input port configuration .............................................................................. 16

Table 102 – Overvoltage categories ...................................................................................... 19

Table 103 – Maximum temperature limits for magnetic components during stored

energy mode of operation ..................................................................................................... 21

Table 22 – Test overview ...................................................................................................... 29

Table 104 – Short-time withstand current .............................................................................. 37

Table 105 – Temperature limits for transformer windings ...................................................... 40

Table A.101 – Comparison of limits of working voltage ......................................................... 50

Table AA.1 – Conductor cross-sections (extract from IEC 61439-1:2011) .............................. 52

Table FF.1 – Test steps ........................................................................................................ 66

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SIST EN IEC 62040-1:2019
– 4 – IEC 62040-1:2017 © IEC 2017
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
UNINTERRUPTIBLE POWER SYSTEMS (UPS) –
Part 1: Safety requirements
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 IEC Publication may be the subject of

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

International Standard IEC 62040-1 has been prepared by subcommittee 22H: Uninterruptible

power systems (UPS), of IEC technical committee 22: Power electronic systems and
equipment.

This second edition cancels and replaces the first edition published in 2008 and its

Amendment 1:2013. This edition constitutes a technical revision.

This edition includes the following significant technical change with respect to the previous

edition: the reference document has been changed from IEC 60950-1:2005 (safety for IT

equipment) to IEC 62477-1 (group safety standard for power electronic converters).

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SIST EN IEC 62040-1:2019
IEC 62040-1:2017 © IEC 2017 – 5 –
The text of this International Standard is based on the following documents:
FDIS Report on voting
22H/217/FDIS 22H/218/RVD

Full information on the voting for the approval of this International Standard can be found in

the report on voting indicated in the above table.

This document has been drafted in accordance with the ISO/IEC Directives, Part 2.

This International Standard is to be read in conjunction with IEC 62477-1:2012.

The provisions of the general rules dealt within IEC 62477-1:2012 are only applicable to this

document insofar as they are specifically cited. Clauses and subclauses of IEC 62477-1:2012

that are applicable in this document are identified by reference to IEC 62477-1:2012, for

example, "Clause 4 of IEC 62477-1:2012 applies, except as follows".

The exceptions are then listed. The exceptions can take the form of a deletion, a replacement

or an addition of subclauses, tables, figures or annexes.

Subclauses, tables and figures that are additional to those in IEC 62477-1:2012 are, in this

document, identified by a suffix in the format of X.10x, for example 4.3.101.

Annexes that are additional to those in IEC 62477-1:2012 are, in this document, lettered AA,

BB, etc.
In this document, the following print types are used:
• requirements and normative annexes: roman type
• compliance statements and test specifications: italic type
• notes and other informative matter: smaller roman type
• normative conditions within tables: smaller roman type
• terms that are defined in Clause 3: bold

A list of all parts in the IEC 62040 series, published under the general title Uninterruptible

Power Systems (UPS), can be found on the IEC website.

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

stability date indicated on the IEC website under "http://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.

IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates

that it contains colours which are considered to be useful for the correct

understanding of its contents. Users should therefore print this document using a

colour printer.
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SIST EN IEC 62040-1:2019
– 6 – IEC 62040-1:2017 © IEC 2017
INTRODUCTION

IEC technical sub-committee 22H: Uninterruptible power systems (UPS) carefully considered

the relevance of each paragraph of IEC 62477-1:2012 in UPS applications. This part of

IEC 62040 utilizes IEC 62477-1:2012 as a reference document and references, adds,

replaces or modifies requirements as relevant. This is because product-specific topics not

covered by the reference document are the responsibility of the technical committee using the

reference document.

IEC 62477-1:2012 relates to products that include power electronic converters, with a rated

system voltage not exceeding 1 000 V AC or 1 500 V DC. It specifies requirements to

reduce risks of fire, electric shock, thermal, energy and mechanical hazards, except

functional safety as defined in IEC 61508 (all parts). The objectives of this document are to

establish a common terminology and basis for the safety requirements of products that

contain power electronic converters across several IEC technical committees.
IEC 62477-1:2012 was developed with the intention:
• to be used as a reference document for product committees inside IEC technical

committee 22: Power electronic systems and equipment in the development of product

standards for power electronic converter systems and equipment;

• to replace IEC 62103 as a product family standard providing minimum requirements for

safety aspects of power electronic converter systems and equipment in apparatus for

which no product standard exists; and

NOTE The scope of IEC 62103 contains reliability aspects, which are not covered by this document.

• to be used as a reference document for product committees outside TC 22 in the

development of product standards of power electronic converter systems and equipment

intended for renewable energy sources. TC 82, TC 88, TC 105 and TC 114, in particular,

have been identified as relevant technical committees at the time of publication.

The reference document, being a group safety standard, will not take precedence over this

product-specific standard according to IEC Guide 104. IEC Guide 104 provides information

about the responsibility of product committees to use group safety standards for the

development of their own product standards.
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SIST EN IEC 62040-1:2019
IEC 62040-1:2017 © IEC 2017 – 7 –
UNINTERRUPTIBLE POWER SYSTEMS (UPS) –
Part 1: Safety requirements
1 Scope

This part of IEC 62040 applies to movable, stationary, fixed or built-in UPS for use in low-

voltage distribution systems and that are intended to be installed in an area accessible by an

ordinary person or in a restricted access area as applicable, that deliver fixed frequency AC

output voltage with port voltages not exceeding 1 000 V AC or 1 500 V DC and that include an

energy storage device. It applies to pluggable and to permanently connected UPS, whether

consisting of a system of interconnected units or of independent units, subject to installing,

operating and maintaining the UPS in the manner prescribed by the manufacturer.

NOTE 1 Typical UPS configurations, including voltage and/or frequency converters and other topologies, are

described in IEC 62040-3, the test and performance product standard for UPS.

NOTE 2 UPS generally connect to their energy storage device through a DC link. A chemical battery is used

throughout the standard as an example of an energy storage device. Alternative devices exist, and as such, where

"battery" appears in the text of this document, this is to be understood as "energy storage device".

This document specifies requirements to ensure safety for the ordinary person who comes

into contact with the UPS and, where specifically stated, for the skilled person. The objective

is to reduce risks of fire, electric shock, thermal, energy and mechanical hazards during use

and operation and, where specifically stated, during service and maintenance.

This product standard is harmonized with the applicable parts of group safety publication

IEC 62477-1:2012 for power electronic converter systems and contains additional
requirements relevant to UPS.
This document does not cover:
• UPS that have a DC output;

• systems for operation on moving platforms including, but not limited to, aircrafts, ships

and motor vehicles;

• external AC or DC input and output distribution boards covered by their specific product

standard;
• stand-alone static transfer systems (STS) covered by IEC 62310-1;

• systems wherein the output voltage is directly derived from a rotating machine;

• telecommunications apparatus other than UPS for such apparatus;
• functional safety aspects covered by IEC 61508 (all parts).

NOTE 3 Even if this document does not cover the applications listed above, it is commonly taken as a guide for

such applications.

NOTE 4 Specialized UPS applications are generally governed by additional requirements covered elsewhere, for

example UPS for medical applications.
2 Normative references

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.
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SIST EN IEC 62040-1:2019
– 8 – IEC 62040-1:2017 © IEC 2017
Clause 2 of IEC 62477-1:2012 applies, except as follows:
Add the following normative references:

IEC 60364-4-42, Low-voltage electrical installations – Part 4-42: Protection for safety –

Protection against thermal effects

IEC 60384-14, Fixed capacitors for use in electronic equipment – Part 14: Sectional

specification – Fixed capacitors for electromagnetic interference suppression and connection

to the supply mains

IEC TR 60755, General requirements for residual current operated protective devices

IEC 60947-2:2006, Low-voltage switchgear and controlgear – Part 2: Circuit-breakers

IEC 60950-1:2005, Information technology equipment – Safety – Part 1: General requirements

IEC 61000-2-2:2002, Electromagnetic compatibility (EMC) – Part 2-2: Environment –

Compatibility levels for low-frequency conducted disturbances and signaling in public low-

voltage power supply systems

IEC 61008-1, Residual current operated circuit-breakers without integral overcurrent

protection for household and similar uses (RCCBs) – Part 1: General rules

IEC 61009-1, Residual current operated circuit-breakers with integral overcurrent protection

for household and similar uses (RCBOs) – Part 1: General rules
IEC 62040-2:2005, Uninterruptible power systems (UPS) – Part 2: Electromagnetic
compatibility (EMC) requirements
IEC 62477-1:2012, Safety requirements for power electronic converter systems and
equipment – Part 1: General
3 Terms and definitions
Clause 3 of IEC 62477-1:2012 applies, except as follows:
Add the following new terms and definitions, and new notes:
___________
th th th

edition (2006). This 4 edition has been replaced in 2016 by a 5 edition IEC 60947-2:2016, Low-voltage

4
switchgear and controlgear – Part 2: Circuit-breakers.
nd nd rd

2 edition (2005). This 2 edition has been replaced in 2016 by a 3 edition IEC 62040-2:2016,

Uninterruptible power systems (UPS) – Part 2: Electromagnetic compatibility (EMC) requirements.

---------------------- Page: 14 ----------------------
SIST EN IEC 62040-1:2019
IEC 62040-1:2017 © IEC 2017 – 9 –
Table 1 – Alphabetical list of terms
Terms Term number Terms Term number
62040-1 62477-1 62040-1 62477-1
adjacent circuit 3.1 power semiconductor device 3.34
active power 3.111 primary power 3.108
apparent power 3.112 prospective short-circuit 3.122
current
backfeed 3.127 protective equipotential 3.36
bonding
backfeed protection 3.128 protective class I 3.37
basic insulation 3.2 protective class II 3.38
basic protection 3.3 protective class III 3.39
bypass 3.110 protective earthing (PE) 3.40
commissioning test 3.4 PE conductor 3.41
cord 3.109 protective impedance 3.42
decisive voltage class 3.5 (electrically) protective 3.43
(DVC) screening
double insulation 3.6 protective separation 3.44
DVC As 3.7 PEC 3.45
DVC Ax 3.8 PECS 3.46
earth fault 3.131 rated conditional short-circuit 3.120
current
electrica
...

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