FprEN IEC 61558-2-8:2024
(Main)Safety of transformers, reactors, power supply units and combinations thereof - Part 2-8: Particular requirements and tests for transformers and power supply units for bells and chimes
Safety of transformers, reactors, power supply units and combinations thereof - Part 2-8: Particular requirements and tests for transformers and power supply units for bells and chimes
IEC 61558-2-8:2024 is available as IEC 61558-2-8:2024 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 61558-2-8:2024 deals with the safety of bell and chime transformers and power supply units incorporating bell and chime transformers. 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) new symbol for power supply unit with linearly regulated output voltage. It has the status of a group safety publication in accordance with IEC Guide 104.
Sicherheit von Transformatoren, Drosseln, Netzgeräten und entsprechenden Kombinationen - Teil 2-8: Besondere Anforderungen und Prüfungen an Transformatoren und Netzgeräten für Klingeln und Läutewerke
Sécurité des transformateurs, bobines d'inductance, blocs d'alimentation et des combinaisons de ces éléments - Partie 2-8 : Exigences particulières et essais pour les transformateurs et blocs d'alimentation pour sonneries et carillons
IEC 61558-2-8:2024 est disponible sous forme de IEC 61558-2-8:2024 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.L'IEC 61558-2-8:2024 traite de la sécurité des transformateurs pour sonneries et carillons et des blocs d’alimentation qui incorporent des transformateurs pour sonneries et carillons. 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. Il a le statut de publication groupée de sécurité conformément au Guide 104 de l'IEC.
Varnost transformatorjev, dušilk, napajalnikov in kombinacij teh elementov - 2-8. del: Posebne zahteve in preskusi za transformatorje in napajalnike za zvonce in gonge
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Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN IEC 61558-2-8:2023
01-februar-2023
Varnost transformatorjev, dušilk, napajalnikov in kombinacij teh elementov - 2-8.
del: Posebne zahteve in preskusi za transformatorje in napajalnike za zvonce in
gonge
Safety of transformers, reactors, power supply units and combinations thereof - Part 2-8:
Particular requirements and tests for transformers and power supply units for bells and
chimes
Sécurité des transformateurs, bobines d'inductance, blocs d'alimentation et des
combinaisons de ces éléments - Partie 2-8: Règles particulières et essais pour les
transformateurs et blocs d'alimentation pour sonneries et carillons
Ta slovenski standard je istoveten z: prEN IEC 61558-2-8:2023
ICS:
29.180 Transformatorji. Dušilke Transformers. Reactors
oSIST prEN IEC 61558-2-8:2023 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
oSIST prEN IEC 61558-2-8:2023
oSIST prEN IEC 61558-2-8:2023
96/565/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 61558-2-8 ED3
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2023-01-06 2023-03-31
SUPERSEDES DOCUMENTS:
96/562/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 2-8:
Particular requirements and tests for transformers and power supply units for bells and
chimes
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 61558-2-8:2023
IEC CDV 61558-2-8 © IEC 2022 2 96/565/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 . 8
9 5 General notes on tests . 8
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 . 11
17 13 Short-circuit voltage. 11
18 14 Heating . 12
19 15 Short-circuit and overload protection . 12
20 16 Mechanical strength . 12
21 17 Protection against harmful ingress of dust, solid objects and moisture . 12
22 18 Insulation resistance, dielectric strength and leakage current . 13
23 19 Construction . 13
24 20 Components . 14
25 21 Internal wiring . 14
26 22 Supply connection and other external flexible cables or cords . 14
27 23 Terminals for external conductors . 15
28 24 Provisions for protective earthing . 15
29 25 Screws and connections . 15
30 26 Creepage distances, clearances and distances through insulation . 15
31 27 Resistance to heat, fire and tracking . 15
32 28 Resistance to rusting . 15
33 Annexes . 16
34 Bibliography . 17
36 Table 101 – Symbols indicating the kind of transformer . 10
oSIST prEN IEC 61558-2-8:2023
IEC CDV 61558-2-8 © IEC 2022 3 96/565/CDV
39 INTERNATIONAL ELECTROTECHNICAL COMMISSION
40 ____________
42 SAFETY OF TRANSFORMERS, REACTORS,
43 POWER SUPPLY UNITS AND COMBINATIONS THEREOF –
45 Part 2-8: Particular requirements and tests for transformers
46 and power supply units for bells and chimes
49 FOREWORD
50 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
51 all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
52 co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
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57 with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
58 Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
59 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
60 consensus of opinion on the relevant subjects since each technical committee has representation from all
61 interested IEC National Committees.
62 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
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66 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
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71 services carried out by independent certification bodies.
72 6) All users should ensure that they have the latest edition of this publication.
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77 Publications.
78 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
79 indispensable for the correct application of this publication.
80 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent
81 rights. IEC shall not be held responsible for identifying any or all such patent rights.
82 International standard IEC 61558-2-8 has been prepared by IEC technical committee 96:
83 Transformers, reactors, power supply units and combinations thereof.
84 This third edition cancels and replaces the second edition published in 2010. This edition
85 constitutes a technical revision.
86 This edition includes the following significant technical changes with respect to the previous
87 edition:
88 a) adjustment of structure and references in accordance with IEC 61558-1:2017;
89 b) new symbol for power supply unit with linearly regulated output voltage.
oSIST prEN IEC 61558-2-8:2023
IEC CDV 61558-2-8 © IEC 2022 4 96/565/CDV
92 The text of this document is based on the following documents:
Draft Report on voting
96/XXX/FDIS 96/XXX/RVD
94 Full information on the voting for its approval can be found in the report on voting indicated in
95 the above table.
96 The language used for the development of this document is English.
97 This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
98 accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
99 at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
100 described in greater detail at www.iec.ch/standardsdev/publications.
101 It has the status of a group safety publication in accordance with IEC Guide 104.
102 This document is to be used in conjunction with IEC 61558-1:2017.
103 This document supplements or modifies the corresponding clauses in IEC 61558-1:2017, so as
104 to convert that publication into the IEC standard: Particular requirements and tests for
105 transformers and power supply units for bells and chimes.
106 A list of all parts in the IEC 61558 series published under the general title Safety of transformers,
107 reactors, power supply units and combinations thereof, can be found on the IEC website.
108 Future standards in this series will carry the new general title as cited above. Titles of existing
109 standards in this series will be updated at the time of the next edition.
110 Where this document states "addition", "modification" or "replacement", the relevant text of
111 IEC 61558-1:2017 is to be adopted accordingly.
112 In this document, the following print types are used:
113 − requirements proper: in roman type;
114 − test specifications: in italic type;
115 − explanatory matter: in smaller roman type.
116 In the text of this document, the words in bold are defined in Clause 3.
117 Subclauses, notes, figures and tables additional to those in IEC 61558-1:2017 are numbered
118 starting from 101; supplementary annexes are entitled AA, BB, etc.
119 The committee has decided that the contents of this document will remain unchanged until the
120 stability date indicated on the IEC website under www.webstore.iec.ch in the data related to the
121 specific document. At this date, the document will be
122 • reconfirmed,
123 • withdrawn,
124 • replaced by a revised edition, or
125 • amended.
oSIST prEN IEC 61558-2-8:2023
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127 INTRODUCTION
128 IEC TC 96 has a group safety function in accordance with IEC Guide 104 for transformers other
129 than those intended to supply distribution networks, in particular transformers and power supply
130 units intended to allow the application of protective measures against electric shock as defined
131 by TC 64, but in certain cases including the limitation of voltage and horizontal safety function
132 for SELV, in accordance with IEC 60364-4-41.
133 The group safety function (GSF) is used because of responsibility for example for safety
...
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