SIST EN 61558-2-10:2014

Safety of transformers, reactors, power supply units and combinations thereof - Part 2-10: Particular requirements and tests for separating transformers with high insulation level and separating transformers with output voltages exceeding 1000 V

EN IEC 61558-2-10 deals with the safety of separating transformers with high insulation level and separating transformers with output voltages exceeding 1000 V. Transformers incorporating electronic circuits are also covered by this standard. Unless otherwise specified, from here onward, the term transformer covers separating transformers with high insulation level and separating transformers with output voltages exceeding 1000 V a.c or 1500 V d.c . This Part 2-10 is applicable to stationary or portable, single-phase or polyphase, air-cooled (natural or forced) independent or associated dry-type transformers. The windings may be encapsulated or non-encapsulated. This standard is applicable to transformers and power supply (linear) with internal operational frequencies not exceeding 500 Hz. This standard used in combination with Part 2-16 for switch mode power supply units (SMPS) is also applicable to power supplies with internal operational frequencies higher than 500 Hz. Where the two requirements are in conflict the most severe take precedence. The rated supply voltage does not exceed 1 000 V a.c., and the rated supply frequency and the internal operating frequency do not exceed 500 Hz. The rated supply voltage does not exceed 1000 V a.c., and the rated supply frequency and the internal operating frequency do not exceed 500 Hz. The rated output does not exceed: - 25 kVA for single-phase transformers; - 40 kVA for polyphase transformers. This Part 2-10 is applicable to transformers without limitation of the rated output subject to an agreement between the purchaser and the manufacturer. Where applicable the no-load output voltage or the rated output voltage: - does not exceed 1000 V a.c. or 1500 V d.c. for separating transformers with high insulation level; - does exceed 1000 V a. c or 1500 V d.c. and does not exceed 15 000 V a.c. or 15000 V d.c. for separating transformer with output voltage exceed 1000 V. This Part 2-10 is not applicable to: - transformers covered by IEC 60076-11; - neon transformers covered by IEC 61050 and - power supplies and converters for use with or in products according to IEC 61347-2-10. This Part 2-10 is not applicable to external circuits and their components intended to be connected to the input terminals and output terminals of the transformers. Transformers covered by this Part 2-10 are used only in applications where double or reinforced insulation between circuits is not required by the installation rules or by the end product standard.

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Sécurité des transformateurs, bobines d'inductance, blocs d'alimentation et des combinaisons de ces éléments - Partie 2-10: Exigences et essais particuliers pour les transformateurs de séparation à niveau d'isolement élevé et pour les transformateurs de séparation à tensions secondaires supérieures à 1 000 V

L'IEC 61558-2-10:2014 traite de la sécurité des transformateurs d'isolement à enroulements séparés à niveau d'isolement élevé et des transformateurs d'isolement à enroulements séparés à tensions secondaires supérieures à 1 000 V. Les transformateurs incorporant des circuits électroniques sont également couverts par la présente norme. La présente première édition annule et remplace le Chapitre ll Section trois de l'IEC 60989 publiée en 1991. Elle constitue une révision technique. Les principales modifications consistent en  a) la mise à jour de la présente partie, conformément à l'IEC 61558-1:2005, et   b) l'ajout des blocs d'alimentation dans le domaine d'application. L'attention des Comités nationaux est attirée sur le fait que les fabricants d'appareils et les organismes d'essai peuvent avoir besoin d'une période transitoire après la publication d'une nouvelle publication IEC, ou d'une publication amendée ou révisée, pour fabriquer des produits conformes aux nouvelles exigences et pour adapter leurs équipements aux nouveaux essais ou aux essais révisés. Le comité recommande que le contenu de cette publication soit entériné au niveau national au plus tôt 12 mois après la date de publication. La période transitoire ne dépasse pas 3 ans après la publication de la présente norme.

Varnost transformatorjev, dušilk, napajalnikov in njihovih kombinacij - 2-10. del: Posebne zahteve in preskusi za ločilne transformatorje z visoko izolacijsko stopnjo in ločilne transformatorje z izhodnimi napetostmi nad 1000 V (IEC 61558-2-10:2014)

Standard EN IEC 61558-2-10 obravnava varnost ločilnih transformatorjev z visoko izolacijsko stopnjo in ločilnih transformatorjev z izhodnimi napetostmi nad 1000 V. V tem standardu so obravnavani tudi transformatorji z vgrajenimi elektronskimi vezji. Če ni navedeno drugače, izraz transformator v nadaljevanju zajema ločilne transformatorje z visoko izolacijsko stopnjo in ločilne transformatorje z izhodnimi napetostmi nad 1000 V izmeničnega napajanja ali 1500 V enosmernega napajanja. 2-10. del velja za stacionarne ali prenosne, eno- ali večfazne, zračno hlajene (naravno ali umetno) neodvisne ali povezane suhe transformatorje. Navitja so lahko enkapsulirana ali neenkapsulirana. Ta standard velja za transformatorje in napajalnike (linearne) z notranjimi operativnimi frekvencami do 500 Hz. Ta standard, uporabljen skupaj z 2. do 16. delom za stikalne napajalnike (SMPS), prav tako velja za napajalnike z notranjimi operativnimi frekvencami, ki presegajo 500 Hz. Če sta zahtevi v nasprotju ena z drugo, prevlada natančnejša. Nazivna napajalna napetost ne presega 1000 V izmeničnega napajanja, nazivna napajalna frekvenca in notranja obratovalna frekvenca pa ne presegata 500 Hz. Nazivna napajalna napetost ne presega 1000 V izmeničnega napajanja, nazivna napajalna frekvenca in notranja obratovalna frekvenca pa ne presegata 500 Hz. Nazivna izhodna moč ne preseže: – 25 kVA za enofazne transformatorje; – 40 kVA za večfazne transformatorje. 2-10. del velja za transformatorje brez omejitev nazivne izhodne moči, o čemer se dogovorita kupec in proizvajalec. Kjer je to primerno, izhodna napetost brez obremenitve ali nazivna izhodna napetost: – ne presega 1000 V izmeničnega napajanja ali 1500 V enosmernega napajanja za ločilne transformatorje z visoko izolacijsko stopnjo; – presega 1000 V izmeničnega napajanja ali 1500 V enosmernega napajanja ter ne presega 15.000 V izmeničnega napajanja ali 15.000 V enosmernega napajanja za ločilne transformatorje z izhodnimi napetostmi nad 1000 V. 2-10. del se ne uporablja za: – transformatorje iz standarda IEC 60076-11; – neonske transformatorje iz standarda IEC 61050 ter – napajalnike in pretvornike za uporabo z izdelki ali v izdelkih v skladu s standardom IEC 61347-2-10. 2-10. del ne velja za zunanja vezja in njihove sestavne dele, ki so namenjeni za povezavo z vhodnimi in izhodnimi priključki transformatorjev. V 2-10. delu obravnavani transformatorji se uporabljajo samo, kjer v skladu s pravili namestitve ali standardom končnega izdelka ni potrebna dvojna ali okrepljena izolacija med vezji.

General Information

• Status: Published
• Publication Date: 12-Aug-2014
• ICS: 29.180 - Transformers. Reactors
• Technical Committee: I96 - Imaginarni 96
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 14-Jul-2014
• Due Date: 18-Sep-2014
• Completion Date: 13-Aug-2014
• Ref Project: EN 61558-2-10:2014 - Safety of transformers, reactors, power supply units and combinations thereof - Part 2-10: Particular requirements and tests for separating transformers with high insulation level and separating transformers with output voltages exceeding 1 000 V

Relations

• Revises: SIST EN IEC 61558-2-10:2024 - Safety of transformers, reactors, power supply units and combinations thereof - Part 2-10: Particular requirements and tests for separating transformers with high insulation level and separating transformers with output voltages exceeding 1 000 V
• Effective Date: 26-Jul-2022

Standards Content (Sample)

SLOVENSKI STANDARD
01-september-2014
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3RVHEQH]DKWHYHLQSUHVNXVL]DORþLOQHWUDQVIRUPDWRUMH]YLVRNRL]RODFLMVNR
VWRSQMRLQORþLOQHWUDQVIRUPDWRUMH]L]KRGQLPLQDSHWRVWPLQDG9,(&

Safety of transformers, reactors, power supply units and combinations thereof - Part 2-
10: Particular requirements and tests for separating transformers with high insulation
level and separating transformers with output voltages exceeding 1000 V
/
Sécurité des transformateurs, bobines d'inductance, blocs d'alimentation et des
combinaisons de ces éléments - Partie 2-10: Exigences et essais particuliers pour les
transformateurs de séparation à niveau d'isolement élevé et pour les transformateurs de
séparation à tensions secondaires supérieures à 1 000 V
Ta slovenski standard je istoveten z: EN 61558-2-10:2014
ICS:
29.180 Transformatorji. Dušilke Transformers. Reactors
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 61558-2-10

NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2014
ICS 29.180
English Version
Safety of transformers, reactors, power supply units and
combinations thereof - Part 2-10: Particular requirements and
tests for separating transformers with high insulation level and
separating transformers with output voltages exceeding 1 000 V
(IEC 61558-2-10:2014)
Sécurité des transformateurs, bobines d'inductance, blocs Sicherheit von Transformatoren, Netzgeräten, Drosseln und
d'alimentation et des combinaisons de ces éléments - dergleichen - Teil 2-10: Besondere Anforderungen und
Partie 2-10: Règles particulières et essais pour les Prüfungen an Netztransformatoren mit hohem
transformateurs d'isolement à enroulements séparés à Isolationspegel und Netztransformatoren mit
niveau d'isolement élevé et pour les transformateurs Ausgangsspannungen über 1 000 V
d'isolement à enroulements séparés à tensions secondaires (IEC 61558-2-10:2014)
supérieures à 1 000 V
(CEI 61558-2-10:2014)
This European Standard was approved by CENELEC on 2014-05-15. 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, 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: Avenue Marnix 17, B-1000 Brussels
© 2014 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 61558-2-10:2014 E
Foreword
The text of document 96/407/FDIS, future IEC 61558-2-10, prepared by IEC/TC 96, "Transformers,
reactors, power supply units and combinations thereof" was submitted to the IEC-CENELEC parallel
vote and approved by CENELEC as EN 61558-2-10:2014.
The following dates are fixed:
(dop) 2015-02-15
• latest date by which the document has
to be implemented at national level by
publication of an identical national
standard or by endorsement
(dow) 2017-05-15
• latest date by which the national
standards conflicting with the
document have to be withdrawn
This Part 2-10 is intended to be used in conjunction with the latest edition of EN 61558-1 and its
amendments.
This Part 2-10 supplements or modifies the corresponding clauses in EN 61558-1, so as to convert
that publication into the IEC standard: Particular requirements and tests for separating transformers
with high insulation level and separating transformers with output voltages exceeding 1 000 V.
When a particular subclause of Part 1 is not mentioned in this part, that subclause applies as far as is
reasonable. Where this part states "addition", "modification" or "replacement", the relevant text of Part
1 is to be adopted accordingly.
In this part, the following print types are used:
− requirements proper: in roman type;
− test specifications: in italic type;
− explanatory matters: in smaller roman type.
In the text of this part the words in bold are defined in Clause 3.
Subclauses, notes, figures and tables additional to those in Part 1 are numbered starting from 101;
supplementary annexes are entitled AA, BB, etc.
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.
Endorsement notice
The text of the International Standard IEC 61558-2-10:2014 was approved by CENELEC as a
European Standard without any modification.
In the Bibliography of EN 61558-1:2005, the following note has to be added for the standard indicated:
Addition:
IEC 60076-11 NOTE Harmonised as EN 60076-11 (not modified).
IEC 61050 NOTE Harmonised as EN 61050 (modified).
IEC 61347-2-10:2000 NOTE Harmonised as EN 61347-2-10:2001 (not modified).

- 3 - EN 61558-2-10:2014
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
Annex ZA of EN 61558-1:2005 applies, except as follows:
Publication Year Title EN/HD Year
IEC 61558-1 2005 Safety of power transformers, power EN 61558-1 2005
supplies, reactors and similar products --
Part 1: General requirements and tests
+EN 61558- 2006
1:2005/corrigendum
Aug. 2006
IEC 61558-2-16 -  Safety of transformers, reactors, power EN 61558-2-16 -
supply units and similar products for
voltages up to 1 100 V -- Part 2-16:
Particular requirements and tests for switch
mode power supply units and transformers
for switch mode power supply units

IEC 61558-2-10 ®
Edition 1.0 2014-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Safety of transformers, reactors, power supply units and combinations thereof –

Part 2-10: Particular requirements and tests for separating transformers with

high insulation level and separating transformers with output voltages

exceeding 1 000 V
Sécurité des transformateurs, bobines d'inductance, blocs d'alimentation et des

combinaisons de ces éléments –

Partie 2-10: Règles particulières et essais pour les transformateurs d'isolement

à enroulements séparés à niveau d'isolement élevé et pour les transformateurs

d'isolement à enroulements séparés à tensions secondaires supérieures

à 1 000 V
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX Q
ICS 29.180 ISBN 978-2-8322-1513-5

– 2 – IEC 61558-2-10:2014 © IEC 2014
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 6
3 Terms and definitions . 6
4 General requirements . 7
5 General notes on tests . 7
6 Ratings . 7
7 Classification . 8
8 Marking and other information . 8
9 Protection against electric shock . 10
10 Change of input voltage setting . 10
11 Output voltage and output current under load . 10
12 No-load output voltage . 10
13 Short-circuit voltage . 11
14 Heating . 11
15 Short-circuit and overload protection . 11
16 Mechanical strength . 11
17 Protection against harmful ingress of dust, solid objects and moisture . 11
18 Insulation resistance, dielectric strength and leakage current . 11
19 Construction . 12
20 Components . 13
21 Internal wiring . 13
22 Supply connection and other external flexible cable or cords . 13
23 Terminals for external conductors . 13
24 Provisions for protective earthing . 13
25 Screws and connections . 13
26 Creepage distances, clearances and distances through insulation . 13
27 Resistance to heat, fire and tracking . 15
28 Resistance to rusting . 15
Annexes . 15

Table 101 – Output voltage difference . 11
Table 102 – Table of dielectric strength test voltages . 12
Table 103 – Clearances distances for homogenous fields and inhomogeneous fields . 14
Table 104 – Creepage distances for material group III a, II and I (CTI > 175) for basic
or supplementary insulation . 15

IEC 61558-2-10:2014 © IEC 2014 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SAFETY OF TRANSFORMERS, REACTORS, POWER
SUPPLY UNITS AND COMBINATIONS THEREOF –

Part 2-10: Particular requirements and tests for separating
transformers with high insulation level and separating
transformers with output voltages exceeding 1 000 V

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. IE
...