oSIST prEN 60598-2-23:2025

Luminaires - Part 2-23: Particular requirements - Extra-low-voltage lighting systems for ELV light sources

Luminaires - Partie 2-23: Exigences particulières - Systèmes d'éclairage à très basse tension pour sources de lumière TBT

Svetilke - 2-23. del: Posebne zahteve - Malonapetostni svetlobni sistemi za svetlobne vire ELV

General Information

• Status: Not Published
• Public Enquiry End Date: 31-Oct-2025
• ICS: 29.140.40 - Luminaires
• Technical Committee: STV - Steklo, svetloba in razsvetljava v gradbeništvu
• Current Stage: 4020 - Public enquire (PE) (Adopted Project)
• Start Date: 26-Aug-2025
• Due Date: 13-Jan-2026
• Completion Date: 28-Oct-2025
• Directive: 2014/35/EU - Directive 2014/35/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation 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
• Mandate: M/511 - Mandate to CEN, CENELEC and ETSI relating to harmonised standards in the field of the Low Voltage Directive
• Ref Project: prEN 60598-2-23:2025 - Luminaires - Part 2-23: Particular requirements - Extra-low-voltage lighting systems for elv light sources

Relations

• Revises: SIST EN IEC 60598-2-23:2021 - Luminaires - Part 2-23: Particular requirements - Extra-low-voltage lighting systems for ELV light sources (IEC 60598-2-23:2020)
• Effective Date: 01-Oct-2025

Overview

The oSIST prEN 60598-2-23:2025 standard, published by the CLC and aligned with IEC 60598-2-23 Edition 3, defines particular requirements for extra-low-voltage (ELV) lighting systems intended for interior use. It applies specifically to luminaires designed for ELV light sources operating at supply voltages not exceeding 1000 V, with system currents up to 25 A. These systems consist of transformers, convertors or controlgear, continuous supporting conductors or profiles, and corresponding luminaires, fixed mechanically and electrically together as a kit.

This new edition updates and aligns the previous 2020 version with the latest IEC 60598-1:2024 (Edition 10) general requirements, removing redundant clauses and improving structural clarity while maintaining safety and performance requirements.

Key Topics

• Scope and Application: Covers ELV luminaires supplied in parallel by freely suspended supporting conductors or profiles within buildings, focused on safety and reliability in interior lighting systems.

• Classification by Electric Shock Protection: ELV luminaires are required to be classified as Class III, indicating protection by extra-low voltage to prevent electrical shock hazards.

• System Components:

  • Lighting System Kit: Includes transformer, convertor/controlgear, luminaires, supporting conductors, connectors, and fixing devices.
  • Supporting Conductors: Conductive wires or profiles that not only supply power but also carry the mechanical weight of luminaires.
  • Main and Auxiliary Supports: Structural supports ensuring secure and stable mounting of conductors.
  • Connectors for both conductors and luminaires to enable safe electrical and mechanical connections.

• Marking and Instructions: The standard requires comprehensive installation manuals detailing:

  • Full list of system parts.
  • Installation methods, including maximum spacing for supports.
  • Special conditions related to transformers, convertors, or controlgear.

• Testing and Compliance: Specifies sequence and nature of tests to ensure safety and durability, incorporating:

  • Endurance and thermal tests.
  • Protection against electric shock and ingress of dust, solids, and moisture (with IP rating considerations).
  • Insulation resistance, creepage distances, and clearances.
  • Resistance to heat, fire, and electrical tracking.

• Alignment with IEC Norms: Integrates normative references including IEC 61347 series for lamp controlgear and IEC 61558 series for safety isolating transformers and power supply units.

Applications

This standard is critical for manufacturers, designers, and installers preparing extra-low-voltage lighting systems using ELV light sources such as LED modules and filament lamps in indoor environments. Its practical applications include:

• Designing safe and compliant ELV luminaires that minimize electrical shock risk.
• Supplying complete ELV lighting kits suitable for commercial and residential interior lighting.
• Developing mounting solutions using suspended supporting conductors optimized for flexibility and safety.
• Facilitating market access through adherence to internationally recognized safety and performance standards.
• Enhancing product documentation to support end-user installation, safety, and maintenance.

Related Standards

The oSIST prEN 60598-2-23:2025 standard should be used in conjunction with:

• IEC 60598-1:2024 – General requirements and tests for luminaires.
• IEC 61347-2-2 – Requirements for electronic convertors for filament lamps.
• IEC 61347-2-13 – Requirements for controlgear for LED modules.
• IEC 61558-2-6 and IEC 61558-2-16 – Safety requirements for isolating transformers and switch mode power supplies used in ELV systems.
• Other parts of the IEC 60598 series addressing various specific luminaire types.

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Keywords: Extra-low-voltage lighting systems, ELV light sources, luminaires, IEC 60598-2-23, electrical safety, Class III luminaires, supporting conductors, transformer, convertor, controlgear, installation instructions, electrical testing, indoor lighting standards.

Standards Content (Sample)

SLOVENSKI STANDARD
01-oktober-2025
Svetilke - 2-23. del: Posebne zahteve - Malonapetostni svetlobni sistemi za
svetlobne vire ELV
Luminaires - Part 2-23: Particular requirements - Extra-low-voltage lighting systems for
ELV light sources
Luminaires - Partie 2-23: Exigences particulières - Systèmes d'éclairage à très basse
tension pour sources de lumière TBT
Ta slovenski standard je istoveten z: prEN 60598-2-23:2025
ICS:
29.140.40 Svetila Luminaires
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

34D/1785/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 60598-2-23 ED3
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2025-08-22 2025-11-14
SUPERSEDES DOCUMENTS:
34D/1776/RR
IEC SC 34D : LUMINAIRES
SECRETARIAT: SECRETARY:
United Kingdom Ms Shanti Conn
OF INTEREST TO THE FOLLOWING COMMITTEES: HORIZONTAL FUNCTION(S):
TC 64
ASPECTS CONCERNED:
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.
Recipients of this document are invited to submit, with their comments, notification of any relevant “In Some Countries”
clauses to be included should this proposal proceed. Recipients are reminded that the CDV stage is the final stage for
submitting ISC clauses. (SEE AC/22/2007 OR NEW GUIDANCE DOC).

TITLE:
Luminaires - Part 2-23: Particular requirements - Extra-low-voltage lighting systems for ELV light
sources
PROPOSED STABILITY DATE: 2029
NOTE FROM TC/SC OFFICERS:
Project Leader: Franco Rusnati

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.

IEC CDV 60598-2-23 ED3 © IEC 2025

Introduction for national committees (not part of the proposal)
This CDV for a new Editon 3.0 of IEC 60598-2-23 provides a structural updating only of Edition
2.0 to align with the new IEC 60598-1:2024 Edition 10. As detailed by Annex AAA of this CDV,
no requirements of this document are considered more onerous compared with the previous
edition.
IEC CDV 60598-2-23 ED3 © IEC 2025

1 CONTENTS
3 FOREWORD . 4
4 1 Scope . 6
5 2 Normative references . 6
6 3 Terms and definitions . 6
7 4 General requirements . 8
8 5 Classification of luminaires . 9
9 5.101 Classification according to the type of protection against electric shock . 9
10 6 Marking . 9
11 7 Construction . 10
12 8 External and internal wiring . 11
13 9 Provisions for earthing . 11
14 10 Protection against electric shock . 11
15 11 Resistance to dust, solid objects and moisture . 11
16 12 Insulation resistance and electric strength, touch current and protective conductor
17 current . 11
18 13 Creepage distances and clearances . 11
19 14 Endurance tests and thermal tests . 11
20 15 Resistance to heat, fire and tracking . 12
21 16 Screw terminals . 12
22 17 Screwless terminals and electrical connections . 12
23 Annex A AA (informative) Schedule of amended subclauses containing more serious
24 or critical requirements which call for products to be retested . 13
25 No requirements of this document are considered more onerous compared with the
26 previous edition. . 13
27 Bibliography . 14
IEC CDV 60598-2-23 ED3 © IEC 2025

31 INTERNATIONAL ELECTROTECHNICAL COMMISSION
32 ____________
34 LUMINAIRES –
36 Part 2-23: Particular requirements – Extra-low-voltage lighting systems for
37 ELV light sources
41 FOREWORD
42 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
43 all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
44 co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
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47 preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
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50 Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
51 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
52 consensus of opinion on the relevant subjects since each technical committee has representation from all
53 interested IEC National Committees.
54 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
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57 misinterpretation by any end user.
58 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
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60 any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
61 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
62 assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
63 services carried out by independent certification bodies.
64 6) All users should ensure that they have the latest edition of this publication.
65 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
66 members of its technical committees and IEC National Committees for any personal injury, property damage or
67 other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
68 expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
69 Publications.
70 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
71 indispensable for the correct application of this publication.
72 9) IEC draws attention to the possibility that the implementation of this document may involve the use of (a)
73 patent(s). IEC takes no position concerning the evidence, validity or applicability of any claimed patent rights in
74 respect thereof. As of the date of publication of this document, IEC had not received notice of (a) patent(s), which
75 may be required to implement this document. However, implementers are cautioned that this may not represent
76 the latest information, which may be obtained from the patent database available at https://patents.iec.ch www.
77 [IEC shall not be held responsible for identifying any or all such patent rights.
78 IEC 60598-2-23 has been prepared by subcommittee 34D: Luminaires, of IEC technical
79 committee 34: Lighting. It is an International Standard.
80 This third edition cancels and replaces the second edition published in 2020. This edition
81 constitutes a technical revision.
82 This edition includes the following significant technical changes with respect to the previous
83 edition:
84 a) the clause numbers and structure have been aligned with those of IEC 60598-1
IEC CDV 60598-2-23 ED3 © IEC 2025

85 b) some construction and screwless terminals and electrical connections clauses from the
86 previous edition were deleted as they were a repetition of the requirements of IEC 60598-1
87 The text of this International Standard is based on the following documents:
Draft Report on voting
XX/XX/FDIS XX/XX/RVD
89 Full information on the voting for its approval can be found in the report on voting indicated in
90 the above table.
91 The language used for the development of this International Standard is English.
92 This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
93 accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, and the
94 ISO/IEC Directives, JTC 1 Supplement available at www.iec.ch/members_experts/refdocs. The
95 main document types developed by IEC are described in greater detail at
96 www.iec.ch/publications.
97 This Part 2-23 is to be used in conjunction with the latest edition of IEC 60598-1 and its
98 amendment(s). It was established on the basis of the tenth edition 2024 of that standard.
100 NOTE  When “Part 1” is mentioned in this document, it refers to IEC 60598-1.
102 Where this document states "addition", "modification" or "replacement", the relevant text of Part 1 is to
103 be adapted accordingly.
105 Subclauses additional to those in Part 1 are numbered starting from 101; supplementary annexes are
106 entitled AAA, AAB, etc.
108 A list of all parts in the IEC 60598 series, published under the general title Luminaires can be found
109 on the IEC website.
111 The committee has decided that the contents of this document will remain unchanged until the
112 stability date indicated on the IEC website under webstore.iec.ch in the data related to the
113 specific document. At this date, the document will be
114 • reconfirmed,
115 • withdrawn,
116 • replaced by a revised edition, or
117 • amended.
IEC CDV 60598-2-23 ED3 © IEC 2025

121 LUMINAIRES –
123 Part 2-23: Particular requirements – Extra-low-voltage
124 lighting systems for ELV light sources
127 1 Scope
128 This part of IEC 60598 specifies requirements for extra-low-voltage lighting systems for ELV
129 light sources, intended for ordinary interior use on supply voltages not exceeding 1 000 V. The
130 luminaires, being connected in parallel, are supplied via freely suspended continuous
131 supporting conductors or profiles, the current in the ELV part of the system not exceeding 25 A.
132 2 Normative references
133 This clause of Part 1 applies with the following additions.
134 IEC 61347-2-2, Lamp controlgear – Part 2-2: Particular requirements for d.c. or a.c. supplied
135 electronic step-down convertors for filament lamps
136 IEC 61347-2-13, Lamp controlgear – Part 2-13: Particular requirements for d.c. or a.c. supplied
137 electronic controlgear for LED modules
138 IEC 61558-2-6, Safety of transformers, reactors, power supply un
...