Safety of transformers, reactors, power supply units and combinations thereof - Part 2-9: Particular requirements and tests for transformers and power supply units for class III handlamps

IEC 61558-2-9:2024 is available as IEC 61558-2-9:2024 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 61558-2-9:2024 deals with the safety of transformers for class III handlamps and power supply units incorporating transformers for class III handlamps. Transformers incorporating electronic circuits are also covered by this document. This third edition cancels and replaces the second edition published in 2010. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) adjustment of structure and references in accordance with IEC 61558-1:2017; b) addition of a new symbol for power supply unit with linearly regulated output voltage; c) document is not only valid for transformers for tungsten filament handlamps. It has the status of a group safety publication in accordance with IEC Guide 104.

Sécurité des transformateurs, bobines d'inductance, blocs d'alimentation et des combinaisons de ces éléments - Partie 2-9: Exigences particulières et essais pour les transformateurs et blocs d'alimentation pour lampes baladeuses de classe III

IEC 61558-2-9:2024 est disponible sous forme de IEC 61558-2-9:2024 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.L'IEC 61558-2-9:2024 traite de la sécurité des transformateurs pour lampes baladeuses de classe III et des blocs d'alimentation qui incorporent des transformateurs pour lampes baladeuses de classe III. Les transformateurs qui incorporent des circuits électroniques sont également couverts par le présent document. Cette troisième édition annule et remplace la deuxième édition parue en 2010. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: a) la structure et les références ont été alignées sur l'IEC 61558-1:2017; b) un nouveau symbole a été ajouté pour les blocs d'alimentation dont la régulation de la tension secondaire est linéaire; c) le document ne s'applique pas seulement aux transformateurs pour lampes baladeuses à filament de tungstène. Il a le statut d'une publication groupée de sécurité conformément au Guide IEC 104.

Varnost transformatorjev, dušilk, napajalnikov in podobnih proizvodov - 2-9. del: Posebne zahteve in preskusi za transformatorje in napajalnike za ročne svetilke razreda III

General Information

Status
Not Published
Publication Date
28-Jul-2024
Current Stage
5060 - Voting results sent to TC, SR - Formal Approval
Start Date
26-Apr-2024
Completion Date
26-Apr-2024

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SLOVENSKI STANDARD
oSIST prEN IEC 61558-2-9:2023
01-marec-2023
Varnost transformatorjev, dušilk, napajalnikov in podobnih proizvodov - 2-9. del:
Posebne zahteve in preskusi za transformatorje in napajalnike za ročne svetilke
razreda III
Safety of transformers, reactors, power supply units and combinations thereof - Part 2-9:
Particular requirements and tests for transformers and power supply units for class III
handlamps
Sécurité des transformateurs, bobines d'inductance, blocs d'alimentation et des
combinaisons de ces éléments - Partie 2-9: Règles particulières et essais pour les
transformateurs et blocs d'alimentation pour lampes baladeuses de classe III
Ta slovenski standard je istoveten z: prEN IEC 61558-2-9:2023
ICS:
29.180 Transformatorji. Dušilke Transformers. Reactors
oSIST prEN IEC 61558-2-9:2023 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

oSIST prEN IEC 61558-2-9:2023
oSIST prEN IEC 61558-2-9:2023
96/566/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 61558-2-9 ED3
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:

2023-01-13 2023-04-07
SUPERSEDES DOCUMENTS:
96/560/RR
IEC TC 96 : TRANSFORMERS, REACTORS, POWER SUPPLY UNITS, AND COMBINATIONS THEREOF
SECRETARIAT: SECRETARY:
Germany Mr Wolfgang Reichelt
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:

Other TC/SCs are requested to indicate their interest, if
any, 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 of transformers, reactors, power supply units and combinations thereof - Part 2-9:
Particular requirements and tests for transformers and power supply units for class III
handlamps
PROPOSED STABILITY DATE: 2025
NOTE FROM TC/SC OFFICERS:
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.

oSIST prEN IEC 61558-2-9:2023
IEC CDV 61558-2-9 © IEC 2022 2 96/566/CDV

1 CONTENTS
3 FOREWORD. 3
4 INTRODUCTION . 5
5 1 Scope . 6
6 2 Normative references . 7
7 3 Terms and definitions . 7
8 4 General requirements . 7
9 5 General notes on tests . 7
10 6 Ratings . 8
11 7 Classification . 8
12 8 Marking and other information . 9
13 9 Protection against electric shock . 10
14 10 Change of input voltage setting . 10
15 11 Output voltage and output current under load . 10
16 12 No-load output voltage . 10
17 13 Short-circuit voltage . 11
18 14 Heating . 11
19 15 Short-circuit and overload protection . 11
20 16 Mechanical strength . 11
21 17 Protection against harmful ingress of dust, solid objects and moisture . 11
22 18 Insulation resistance, dielectric strength and leakage current . 11
23 19 Construction . 11
24 20 Components . 13
25 21 Internal wiring . 14
26 22 Supply connection and other external flexible cables or cords . 14
27 23 Terminals for external conductors . 14
28 24 Provisions for protective earthing . 14
29 25 Screws and connections . 14
30 26 Creepage distances, clearances and distances through insulation . 14
31 27 Resistance to heat, fire and tracking . 14
32 28 Resistance to rusting . 14
33 Annexes . 15
34 Bibliography . 16
36 Table 101 – Symbols indicating the kind of transformer . 9
37 Table 102 – Output voltage ratio . 11
oSIST prEN IEC 61558-2-9:2023
IEC CDV 61558-2-9 © IEC 2022 3 96/566/CDV

40 INTERNATIONAL ELECTROTECHNICAL COMMISSION
41 ____________
43 SAFETY OF TRANSFORMERS, REACTORS,
44 POWER SUPPLY UNITS AND COMBINATIONS THEREOF –
46 Part 2-9: Particular requirements and tests for transformers and
47 power supply units for class III handlamps
50 FOREWORD
51 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
52 all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
53 co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
54 in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
55 Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their
56 preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
57 may participate in this preparatory work. International, governmental and non-governmental organizations liaising
58 with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
59 Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
60 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
61 consensus of opinion on the relevant subjects since each technical committee has representation from all
62 interested IEC National Committees.
63 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
64 Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
65 Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
66 misinterpretation by any end user.
67 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
68 transparently to the maximum extent possible in their national and regional publications. Any divergence between
69 any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
70 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
71 assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
72 services carried out by independent certification bodies.
73 6) All users should ensure that they have the latest edition of this publication.
74 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
75 members of its technical committees and IEC National Committees for any personal injury, property damage or
76 other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
77 expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
78 Publications.
79 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
80 indispensable for the correct application of this publication.
81 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent
82 rights. IEC shall not be held responsible for identifying any or all such patent rights.
83 International standard IEC 61558-2-9 has been prepared by IEC technical committee 96:
84 Transformers, reactors, power supply units and combinations thereof.
85 This third edition cancels and replaces the second edition published in 2010. This edition
86 constitutes a technical revision.
87 This edition includes the following significant technical changes with respect to the previous
88 edition:
89 a) adjustment of structure and references in accordance with IEC 61558-1:2017;
90 b) new symbol for power supply unit with linearly regulated output voltage.
91 c) document is not only valid for transformers for tungsten filament handlamps
oSIST prEN IEC 61558-2-9:2023
IEC CDV 61558-2-9 © IEC 2022 4 96/566/CDV

94 The text of this document is based on the following documents:
Draft Report on voting
96/XXX/FDIS 96/XXX/RVD
96 Full information on the voting for its approval can be found in the report on voting indicated in
97 the above table.
98 The language used for the development of this document is English.
99 This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
100 accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
101 at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
102 described in greater detail at www.iec.ch/standardsdev/publications.
103 It has the status of a group safety publication in accordance with IEC Guide 104.
104 This document is to be used in conjunction with IEC 61558-1:2017.
105 This document supplements or modifies the corresponding clauses in IEC 61558-1:2017, so as
106 to convert that publication into the IEC standard: Particular requirements and tests for
107 transformers and power supply units for class III handlamps.
108 A list of all parts in the IEC 61558 series published under the general title Safety of transformers,
109 reactors, power supply units and combinations thereof, can be found on the IEC website.
110 Future standards in this series will carry the new general title as cited above. Titles of existing
111 standards in this series will be updated at the time of the next edition.
112 Where this document states "addition", "modification" or "replacement", the relevant text of
113 IEC 61558-1:2017 is to be adopted accordingly.
114 In this document, the following print types are used:
115 − requirements proper: in roman type;
116 − test specifications: in italic type;
117 − explanatory matter: in smaller roman type.
118 In the text of this document, the words in bold are defined in Clause 3.
119 Subclauses, notes, figures and tables additional to those in IEC 61558-1:2017 are numbered
120 starting from 101; supplementary annexes are entitled AA, BB, etc.
121 The committee has decided that the contents of this document will remain unchanged until the
122 stability date indicated on the IEC website under www.webstore.iec.ch in the data related to the
123 specific document. At this date, the document will be
124 • reconfirmed,
125 • withdrawn,
126 • replaced by a revised edition, or
127 • amended.
oSIST prEN IEC 61558-2-9:2023
IEC CDV 61558-2-9 © IEC 2022 5 96/566/CDV

129 INTRODUCTION
130 IEC TC 96 has a group safety function in accordance with IEC Guide 104 for transformers other
131 than those intended to supply distribution networks, in particular transformers and power supply
132 units intended to allow the application of protective measures against electric shock as defined
133 by TC 64, but in certain cases including the limi
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