SIST EN IEC 61204-7:2018

SLOVENSKI STANDARD
SIST EN IEC 61204-7:2018
01-junij-2018
Nadomešča:
SIST EN 61204-7:2007
SIST EN 61204-7:2007/A11:2009
Nizkonapetostni stikalni napajalniki - 7. del: Varnostne zahteve (IEC 61204-7:2016)
Low-voltage switch mode power supplies - Part 7: Safety requirements (IEC 61204-
7:2016)
Stromversorgungsgeräte für Niederspannung mit Gleichstromausgang - Teil 7:
Sicherheitsanforderungen (IEC 61204-7:2016)
Alimentations à découpage basse tension - Partie 7: Exigences de sécurité (IEC 61204-
7:2016)
Ta slovenski standard je istoveten z: EN IEC 61204-7:2018
ICS:
29.200 Usmerniki. Pretvorniki. Rectifiers. Convertors.
Stabilizirano električno Stabilized power supply
napajanje
SIST EN IEC 61204-7:2018 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN IEC 61204-7:2018

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SIST EN IEC 61204-7:2018


EUROPEAN STANDARD EN IEC 61204-7

NORME EUROPÉENNE

EUROPÄISCHE NORM
March 2018
ICS 29.200 Supersedes EN 61204-7:2006
English Version
Low-voltage switch mode power supplies - Part 7: Safety
requirements
(IEC 61204-7:2016)
Alimentations à découpage basse tension - Partie 7: Stromversorgungsgeräte für Niederspannung mit
Exigences de sécurité Gleichstromausgang - Teil 7: Sicherheitsanforderungen
(IEC 61204-7:2016) (IEC 61204-7:2016)
This European Standard was approved by CENELEC on 2016-12-12. 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 61204-7:2018 E

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SIST EN IEC 61204-7:2018
EN IEC 61204-7:2018 (E)
European foreword
The text of document 22E/175/FDIS, future edition 2 of IEC 61204-7, prepared by IEC/SC 22E
"Stabilized power supplies" of IEC/TC 22 "Power electronic systems and equipment" was submitted to
the IEC-CENELEC parallel vote and approved by CENELEC as EN IEC 61204-7:2018.
The following dates are fixed:
(dop) 2018-09-16
• latest date by which the document has to be implemented at
national level by publication of an identical national
standard or by endorsement
(dow) 2021-03-16
• latest date by which the national standards conflicting with
the document have to be withdrawn
This document supersedes EN 61204-7:2006.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] 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 2014/35/EU, see informative Annex ZZ, which is an integral part
of this document.
Endorsement notice
The text of the International Standard IEC 61204-7:2016 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 60085 NOTE Harmonized in EN 60085.
IEC 61140 NOTE Harmonized in EN 61140.
IEC 60127 series NOTE Harmonized in EN 60127 series.
IEC 60146-1-1 NOTE Harmonized in EN 60146-1-1.
IEC 60317-43 NOTE Harmonized in EN 60317-43.
IEC 60364-4-41 NOTE Harmonized in HD 60364-4-41.
IEC 60747-5-1 NOTE Harmonized in EN 60747-5-1.
IEC 60747-5-2 NOTE Harmonized in EN 60747-5-2.
2

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SIST EN IEC 61204-7:2018
EN IEC 61204-7:2018 (E)
IEC 60950-1:2005 NOTE Harmonized in EN 60950-1:2006 (modified).
A1:2009 A1:2010 (modified)
A2:2013 A2:2013 (modified)
IEC 61032:1997 NOTE Harmonized in EN 61032:1998.
IEC 61180 series NOTE Harmonized in EN 61180 series.
IEC 61347-2-2 NOTE Harmonized in EN 61347-2-2.
IEC 61349-1:2011 NOTE Harmonized in EN 61349-1:2011.
IEC 61508 series NOTE Harmonized in EN 61508 series.
IEC 61558 series NOTE Harmonized in EN 61558 series.
IEC 61643-21 NOTE Harmonized in EN 61643-21.
IEC 61643-311 NOTE Harmonized in EN 61643-311.
IEC 61643-321 NOTE Harmonized in EN 61643-321.
IEC 61643-331 NOTE Harmonized in EN 61643-331.
IEC 62386 series NOTE Harmonized in EN 62386 series.
3

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SIST EN IEC 61204-7:2018
EN IEC 61204-7:2018 (E)
Annex ZA
(normative)

Normative references to international publications
with their corresponding European publications
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
NOTE 1 When 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 60227 series Polyvinyl chloride insulated cables of rated - series
voltages up to and including 450/750 V --
Part 1: General requirements
IEC 60245 series Rubber insulated cables - Rated voltages - series
up to and including 450/750 V -- Part 1:
General requirements
IEC 60320 series Appliance couplers for household and EN 60320 series
similar general purposes - Part 1: General
requirements
IEC 60384-14 2013 Fixed capacitors for use in electronic EN 60384-14 2013
equipment -- Part 14: Sectional
specification - Fixed capacitors for
electromagnetic interference suppression
and connection to the supply mains
IEC 60417 2002 Graphical symbols for use on equipment - -
IEC 60529 1989 Degrees of protection provided by EN 60529 1991
enclosures (IP Code)
- -  + corrigendum May 1993
IEC 60529 AMD 1 1999 Degrees of protection provided by - -
enclosures (IP_code); Amendment_1
IEC 60529 AMD 2 2013 Degrees of protection provided by - -
enclosures (IP_code); Amendment_2
IEC 60695-11-5 -  Fire hazard testing - Part 11-5: Test flames EN 60695-11-5 2017
- Needle-flame test method - Apparatus,
confirmatory test arrangement and
guidance
IEC 60695-11-20 1999 Fire hazard testing_- Part_11-20: Test - -
flames_- 500_W flame test methods
IEC 60730-1 2010 Automatic electrical controls for household EN 60730-1 2011
and similar use -- Part 1: General (mod)
requirements
4

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SIST EN IEC 61204-7:2018
EN IEC 61204-7:2018 (E)
IEC 60738-1 2006 Thermistors - Directly heated positive EN 60738-1 2006
temperature coefficient -- Part 1: Generic
specification
IEC 60747-5-5 2007 Semiconductor devices - Discrete devices -EN 60747-5-5 2011
- Part 5-5: Optoelectronic devices -
Photocouplers
IEC 60799 -  Electrical accessories - Cord sets and EN 60799 1998
interconnection cord sets
IEC 60851-3 2009 Winding wires - Test methods -- Part 3: EN 60851-3 2009
Mechanical properties
IEC 60851-5 2008 Winding wires - Test methods -- Part 5: EN 60851-5 2008
Electrical properties
IEC 60851-6 1996 Winding wires - Test methods -- Part 6: - -
Thermal properties
IEC 60947-1 -  Low-voltage switchgear and controlgear -- EN 60947-1 2007
Part 1: General rules
IEC 60947-3 -  Low-voltage switchgear and controlgear -- EN 60947-3 2009
Part 3: Switches, disconnectors, switch- +A1 2012
disconnectors and fuse-combination units +A2 2015
IEC 60990 1999 Methods of measurement of touch current EN 60990 1999
and protective conductor current
IEC 61010-1 2010 Safety requirements for electrical EN 61010-1 2010
equipment for measurement, control and
laboratory use -- Part 1: General
requirements
IEC 61058-1 2000 Switches for appliances -- Part 1: General - -
requirements
+ A1 2001  EN 61058-1 2002
+ A2 2007  + A2 2008
+ corrigendum Jan. 2009  - -
IEC 61293 1994 Marking of electrical equipment with ratings EN 61293 1994
related to electrical supply - Safety
requirements
IEC 61558-1 2005 Safety of power transformers, power EN 61558-1 2005
supplies, reactors and similar products --
Part 1: General requirements and tests
- -  + corrigendum Aug. 2006
+ A1 2009 + A1 2009
IEC 61558-2 series Safety of power transformers, power EN 61558-2 series
supplies, reactors and similar products --
Part 2-1: Particular requirements and tests
for separating transformers and power
supplies incorporating separating
transformers for general applications
IEC 61810-1 2008 Electromechanical elementary relays -- EN 61810-1 2008
Part 1: General requirements
5

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SIST EN IEC 61204-7:2018
EN IEC 61204-7:2018 (E)
IEC 62368-1 2014 Audio/video, information and EN 62368-1 2014
communication technology equipment -- (mod)
Part 1: Safety requirements
- -  + AC 2015
- -  + A11 2017
- -  + AC 2017-03
IEC 62477-1 2012 Safety requirements for power electronic EN 62477-1 2012
converter systems and equipment -- Part 1:
General
- -  + A11 2014
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SIST EN IEC 61204-7:2018
EN IEC 61204-7:2018 (E)
Annex ZZ
(informative)

Relationship between this European Standard and the safety objectives of
Directive 2014/35/EU [2014 OJ L96] aimed to be covered
This European Standard has been prepared under a Commission’s standardization request relating to
harmonized standards in the field of the Low Voltage Directive, M/511, to provide one voluntary means
of conforming to safety objectives of Directive 2014/35/EU of the European Parliament and of the
Council of 26 February 2014 on the harmonization 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
[2014 OJ L96].
Once this standard is cited in the Official Journal of the European Union under that Directive,
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 safety objectives of
that Directive, and associated EFTA regulations.
Table ZZ.1 – Correspondence between this European Standard
and Annex I of Directive 2014/35/EU [2014 OJ L96]
Safety objectives of Clause(s) / sub-clause(s) Remarks / Notes
Directive 2014/35/EU of this EN
(1)(a) 6
(1)(b) 6
Annex AC 5
(1)(c) Refer to 2a) to 2d) and 3a) to
3c) in this table.
Refer to standard clause 1, 6
Annex AC 5
(2)(a) 4.1, 4.2, 4.3, 4.4, 4.5, 4.6, 4.7, Hazards arising from electric,
4.8, 4.11, 4.12, 5.2, Annex A, magnetic, and electromagnetic

Annex D, Annex F, Annex AA, fields, other ionizing and non-

Annex AC ionizing radiation are covered in

separate standards.



(2)(b)
4.3, 4.4, 4.6, 4.10, 4.11, 4.12,

Annex AC
(2)(c)


4.7, 4.9, 4.11, 4.12, 5.2
(2)(d)

4.1 4.2, 4.11, 4.12, 5.2, Annex
D, Annex F, Annex AA, Annex
AC
(3)(a) 4.7, 4.9, 4.12, 5.2 Hazards arising from electric,
magnetic, and electromagnetic

fields, other ionizing and non-
(3)(b) 4.2, 4.9, 5.2
ionizing radiation are covered in

separate standards.
(3)(c) 4.1, 4.2, 4.3, 5.2, Annex AA,
Hazards arising from
Annex AC
unattended operation have
been duly considered.
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SIST EN IEC 61204-7:2018
EN IEC 61204-7:2018 (E)
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.

8

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SIST EN IEC 61204-7:2018




IEC 61204-7

®


Edition 2.0 2016-11




INTERNATIONAL



STANDARD




NORME



INTERNATIONALE
colour

inside










Low-voltage switch mode power supplies –

Part 7: Safety requirements




Alimentations à découpage basse tension –

Partie 7: Exigences de sécurité
















INTERNATIONAL

ELECTROTECHNICAL

COMMISSION


COMMISSION

ELECTROTECHNIQUE


INTERNATIONALE




ICS 29.200 ISBN 978-2-8322-3670-3



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 61204-7:2018
– 2 – IEC 61204-7:2016  IEC 2016
CONTENTS
FOREWORD . 7
INTRODUCTION . 10
0 Principles of safety . 11
0.1 General . 11
0.2 Hazards . 12
0.2.1 General . 12
0.2.2 Electric shock . 12
0.2.3 Energy related hazards . 13
0.2.4 Fire . 13
0.2.5 Heat related hazards . 14
0.2.6 Mechanical hazards . 14
0.2.7 Chemical hazards . 14
0.3 Materials and components . 14
1 Scope . 15
1.1 Equipment covered by this document . 15
1.2 Exclusions . 15
1.3 Additional requirements . 15
2 Normative references . 16
3 Terms and definitions . 17
3.100 General . 18
4 Protection against hazards . 20
4.1 General . 20
4.1.100 Constructions not specifically covered . 21
4.1.101 Orientation during transport and use . 21
4.2 Fault and abnormal conditions . 21
4.2.100 Application of faults and abnormal conditions . 22
4.3 Short circuit and overload protection . 22
4.4 Protection against electric shock . 23
4.4.1 General . 23
4.4.2 Decisive voltage class . 23
4.4.3 Provision for basic protection . 25
4.4.4 Provision for fault protection . 26
4.4.5 Enhanced protection . 27
4.4.6 Protective measures . 30
4.4.7 Insulation . 31
4.4.8 Compatibility with residual current-operated protective devices (RCD) . 37
4.4.9 Capacitor discharge . 37
4.5 Protection against electrical energy hazards . 38
4.5.1 Operator access areas. 38
4.5.2 Service access areas . 38
4.6 Protection against fire and thermal hazards . 38
4.6.1 Circuits representing a fire hazard . 38
4.6.2 Components representing a fire hazard . 38
4.6.3 Fire enclosures . 38
4.6.4 Temperature limits . 40
4.6.5 Limited power sources . 41

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SIST EN IEC 61204-7:2018
IEC 61204-7:2016  IEC 2016 – 3 –
4.7 Protection against mechanical hazards . 41
4.7.1 General . 41
4.7.2 Specific requirements for liquid cooled SMPS . 41
4.8 Equipment with multiple sources of supply . 41
4.9 Protection against environmental stresses . 41
4.10 Protection against sonic pressure hazards . 41
4.11 Wiring and connections . 41
4.11.1 General . 41
4.11.2 Routing . 41
4.11.3 Colour coding . 41
4.11.4 Splices and connections . 41
4.11.5 Accessible connections . 41
4.11.6 Interconnections between parts of the SMPS . 42
4.11.7 Supply connections. 42
4.11.8 Terminals . 42
4.12 Enclosures . 42
4.12.1 General . 42
4.12.2 Handles and manual controls . 42
4.12.3 Cast metal . 43
4.12.4 Sheet metal . 43
4.12.5 Stability test for enclosure . 43
5 Test requirements . 43
5.1 General . 43
5.1.1 Test objectives and classification . 43
5.1.2 Selection of test samples . 43
5.1.3 Sequence of tests . 43
5.1.4 Earthing conditions . 43
5.1.5 General conditions for tests . 43
5.1.6 Compliance . 44
5.1.7 Test overview . 44
5.2 Test specifications . 46
5.2.1 Visual inspections (type test, sample test and routine test) . 46
5.2.2 Mechanical tests . 46
5.2.3 Electrical tests . 48
5.2.4 Abnormal operation and simulated faults tests . 56
5.2.5 Material tests . 61
5.2.6 Environmental tests (type tests) . 61
5.2.7 Hydrostatic pressure test (type test and routine test) . 62
6 Information and marking requirements . 62
6.1 General . 62
6.2 Information for selection . 64
6.2.100 Additional marking requirements for SMPS . 64
6.2.101 Additional information for Component SMPS . 66
6.3 Information for installation and commissioning . 66
6.3.1 General . 66
6.3.2 Mechanical considerations . 66
6.3.3 Environment . 66
6.3.4 Handling and mounting . 66
6.3.5 Enclosure temperature. 66

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SIST EN IEC 61204-7:2018
– 4 – IEC 61204-7:2016  IEC 2016
6.3.6 Connections . 66
6.3.7 Protection requirements . 67
6.3.8 Commissioning . 69
6.4 Information for use . 69
6.4.1 General . 69
6.4.2 Adjustment . 69
6.4.3 Labels, signs and signals . 69
6.5 Information for maintenance . 69
6.5.1 General . 69
6.5.2 Capacitor discharge . 69
6.5.3 Auto restart/bypass connection . 69
6.5.4 Other hazards . 69
6.5.5 Equipment with multiple sources of supply . 69
6.5.100 Disconnect device external to permanently connected equipment . 70
6.5.101 Power cord acting as disconnecting device . 70
7 Components . 70
7.1 General . 70
7.2 Switches . 71
7.2.1 General . 71
7.2.2 Requirements for switches acting as disconnecting device . 71
7.2.3 Requirements for switches . 72
7.2.4 Test method and compliance criteria . 73
7.3 Overtemperature protection devices (thermal cut-offs or thermal links) . 73
7.4 PTC thermistors . 74
7.5 Overcurrent protective devices . 74
7.6 Protective devices not mentioned in 7.2 to 7.5 . 74
7.6.1 Other protective devices requirements . 74
7.6.2 Compliance and test method. 74
7.7 Transformers . 74
7.7.1 General . 74
7.7.2 Insulation . 75
7.8 Motors . 76
7.9 Mains supply cords . 76
7.9.1 General . 76
7.9.2 F
...