kSIST FprEN IEC 60598-2-2:2026

• Status: Not Published
• Public Enquiry End Date: 31-Dec-2024
• ICS: 29.140.40 - Luminaires
• ICS: 29.140.50 - Lighting installation systems
• Technical Committee: STV - Steklo, svetloba in razsvetljava v gradbeništvu
• Current Stage: 5020 - Formal vote (FV) (Adopted Project)
• Start Date: 30-Jun-2026
• Due Date: 18-Aug-2026
• Completion Date: 29-Sep-2026
• 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: FprEN IEC 60598-2-2:2026 - Luminaires - Part 2-2: Particular requirements - Recessed luminaires and recessed air-handling luminaires

• Revises: SIST EN IEC 60598-2-2:2024 - Luminaires - Part 2-2: Particular requirements - Recessed luminaires and recessed air-handling luminaires (IEC 60598-2-2:2023)
• Effective Date: 23-Apr-2024

kSIST FprEN IEC 60598-2-2:2026 is a SIST standard for recessed luminaires and recessed air-handling luminaires. It sets particular safety, marking, construction and test requirements for luminaires used in ceilings, ventilation ducts or ventilated spaces, for electric light sources and supply voltages up to 1 000 V. It is used together with IEC 60598-1.

What does kSIST FprEN IEC 60598-2-2:2026 specify?

kSIST FprEN IEC 60598-2-2:2026 specifies the particular requirements for recessed luminaires and recessed air-handling luminaires. The document is organized as clauses 1 to 17, followed by annexes AAA to AAD.

It covers the safety-related topics that matter for installation and product assessment:

• scope and reference standards
• terms and definitions
• general test requirements and the order of clauses
• classification and marking
• construction, wiring and earthing
• protection against electric shock
• resistance to dust, solid objects and moisture
• insulation, creepage distances and clearances
• endurance, thermal, heat, fire and tracking tests
• screw terminals and screwless terminals

Annex	What it covers
AAA	Measurement of ambient temperature in an installation
AAB	Recessed luminaires thermal test methods
AAC	Explanation of t_a for air-handling luminaires
AAD	Amended subclauses that require retesting

What are the key requirements of kSIST FprEN IEC 60598-2-2:2026?

kSIST FprEN IEC 60598-2-2:2026 focuses on how recessed luminaires are identified, installed and tested so that their declared safety limits match real ceiling conditions. The most important requirements are in marking, wiring, electric shock protection and thermal testing.

Marking and identification

Clause 6 requires recessed luminaires with two IP ratings to mark both ratings clearly and durably. The markings have to remain visible during installation, and it must be clear which parts each rating refers to.

Where relevant, the luminaire also has to carry the symbol for not being suitable for direct mounting on normally flammable surfaces, or the symbol for not being suitable for covering with thermal insulating material. In practice, this tells the installer whether the luminaire may touch a combustible mounting surface or be buried under insulation.

Wiring, earthing and electric shock protection

Clause 8 requires flexible cables or cords supplied by the manufacturer to meet the mechanical and electrical expectations of the IEC 60227 series or IEC 60245 series and to withstand the highest temperature they may see in use. Clause 10 requires parts in the ceiling cavity to give the same protection against electric shock as the visible parts below the ceiling.

For the reader, this means the wiring method and access barriers inside the ceiling are part of the safety case, not just the visible luminaire body.

Dust, moisture and thermal performance

Clause 11 requires recessed luminaires to be tested according to the IP classification stated for the part in the recess and the part that protrudes from it. Clause 14 then requires thermal testing in the test recess defined in Annex AAB.

The document also checks that any supply cable exposed to heat stays within the limits in Table 1, and it gives special thermal test conditions for air-handling luminaires. For those luminaires, testing is done under static operation, with defined temperature limits for air paths and light-source surfaces.

Installation-dependent testing

Annex AAA gives a method for measuring ambient temperature in an actual installation. This helps the user judge whether the luminaire's t rating is suitable for the cavity or ceiling space in question.

Annex AAB adds the test recess arrangements for luminaires suitable or not suitable for covering with thermal insulating material, including separate enclosures, wall-mounted variants and settable or adjustable luminaires. Annex AAC explains how t_a is interpreted for air-handling luminaires.

What terms does kSIST FprEN IEC 60598-2-2:2026 define?

• air-handling luminaire - A luminaire specially designed to work with an air conditioning system, with air passing through the lamp chamber or separate passages.
• static operation - Operation when the luminaire is not moving forced supply or extract air, but still allows natural convection.
• rated maximum ambient temperature (t) - The maximum ambient temperature associated with normal conditions for the luminaire and used for marking and installation checks.
• IP classification - The degree of protection against dust, solid objects and moisture, applied here to parts in the recess and parts protruding from it.

Who uses kSIST FprEN IEC 60598-2-2:2026?

kSIST FprEN IEC 60598-2-2:2026 is used by luminaire manufacturers, lighting engineers, test laboratories, certification bodies and electrical installers. It is also relevant to specifiers and buyers who need recessed products for ceilings, cavities, ducted spaces or air-handling applications.

In practice, these users apply it to product design, type testing, marking review, installation checks and conformity assessment. It is especially relevant where the luminaire interacts with ceiling insulation, flammable mounting surfaces or ventilation systems.

What changed in kSIST FprEN IEC 60598-2-2:2026 from the previous edition?

kSIST FprEN IEC 60598-2-2:2026 replaces the fourth edition published in 2023. The document states that this fifth edition is a technical revision, and its significant technical change is alignment of clause numbers and structure with IEC 60598-1.

Annex AAD states that no requirements are considered more onerous than in the previous edition.

Which standards are used with kSIST FprEN IEC 60598-2-2:2026?

• IEC 60598-1 - The main companion standard; Part 2-2 is used together with the latest edition and its amendments.
• IEC 60227 (all parts) - Provides the reference basis for PVC-insulated cables up to 450/750 V.
• IEC 60245 (all parts) - Provides the reference basis for rubber-insulated cables up to 450/750 V.

What does the kSIST FprEN IEC 60598-2-2:2026 document contain?

The document contains the full clause structure for recessed luminaires, including marking, construction, wiring, earthing, protection against electric shock, IP-related testing, thermal endurance, heat and fire resistance, and terminal requirements. It also includes figures for the marking symbols and for test recess examples used in thermal assessment.

Annex AAB provides the main thermal test setups and examples for luminaires with separate parts, while Table 1 sets the cable temperature checks used during testing. Annex AAA and Annex AAC support installation-dependent temperature assessment, and Annex AAD lists amended subclauses linked to retesting decisions.

SLOVENSKI STANDARD
oSIST prEN IEC 60598-2-2:2024
01-december-2024
Svetilke - 2-2. del: Posebne zahteve - Vgradne svetilke in vgradne prezračevalne
svetilke
Luminaires - Part 2-2: Particular requirements - Recessed luminaires and recessed air-
handling luminaires
Leuchten - Teil 2-2: Besondere Anforderungen - Einbauleuchten und luftführende
Einbauleuchten
Luminaires - Partie 2-2: Exigences particulières - Luminaires encastrés et luminaires à
circulation d'air encastrés
Ta slovenski standard je istoveten z: prEN IEC 60598-2-2:2024
ICS:
29.140.40 Svetila Luminaires
29.140.50 Instalacijski sistemi za Lighting installation systems
razsvetljavo
oSIST prEN IEC 60598-2-2:2024 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

oSIST prEN IEC 60598-2-2:2024
oSIST prEN IEC 60598-2-2:2024
34D/1744/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 60598-2-2 ED5
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2024-10-11 2025-01-03
SUPERSEDES DOCUMENTS:
34D/1734/RR
IEC SC 34D : LUMINAIRES
SECRETARIAT: SECRETARY:
United Kingdom Ms Shanti Conn
OF INTEREST TO THE FOLLOWING COMMITTEES: HORIZONTAL FUNCTION(S):

ASPECTS CONCERNED:
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.
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 2-2: Particular requirements - Recessed luminaires and recessed air-handling
luminaires
PROPOSED STABILITY DATE: 2028
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
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oSIST prEN IEC 60598-2-2:2024
IEC CDV 60598-2-2 © IEC 2024 2 34D/1744/CDV
1 CONTENTS
3 FOREWORD. 3
4 1 Scope . 5
5 2 Normative references . 5
6 3 Terms and definitions . 5
7 4 General test requirements . 5
8 5 Classification of luminaires . 6
9 6 Marking . 6
10 7 Construction . 7
11 8 External and internal wiring . 7
12 9 Provisions for earthing . 7
13 10 Protection against electric shock . 8
14 11 Resistance to dust, solid objects and moisture . 8
15 12 Insulation resistance and electric strength, touch current and protective conductor
16 current . 8
17 13 Creepage distances and clearances . 8
18 14 Endurance tests and thermal tests . 8
19 15 Resistance to heat, fire and tracking . 9
20 16 Screw terminals . 9
21 17 Screwless terminals and electrical connections . 9
22 Annex A AA (normative) . 10
23 Measurement of ambient temperature in an installation . 10
24 Annex AAB (normative) Recessed luminaires thermal test methods . 11
25 Annex AAC (informative) Explanation of ta with respect to air-handling luminaires . 14
26 Annex AAD (informative) Schedule of amended subclauses containing more
27 serious/critical requirements which require products to be retested . 15
29 Figure 1 – Symbol for luminaires not suitable for direct mounting on normally
30 flammable surfaces (suitable only for mounting on non-combustible surfaces) . 7
31 Figure 2 – Symbol for luminaires not suitable for covering with thermally insulating
32 material . 7
33 Figure AAB.1 – Example of test recess where a luminaire suitable for covering with
34 thermal insulating material comprises separate parts . 11
35 Figure AAB.2 – Example of test recess where a luminaire not suitable for covering with
36 thermal insulating material comprises separate parts . 12
37 Figure AAB.3 – Correct test box size (insulating ceilings) for settable and adjustable
38 luminaires . 13
40 Table 1 – Operating temperature of cable . 9
oSIST prEN IEC 60598-2-2:2024
IEC CDV 60598-2-2 © IEC 2024 3 34D/1744/CDV
43 INTERNATIONAL ELECTROTECHNICAL COMMISSION
44 ____________
46 LUMINAIRES –
48 Part 2-2: Particular requirements –
49 Recessed luminaires and recessed air-handling luminaires
52 FOREWORD
53 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
54 all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
55 co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
56 in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
57 Publicly Available Specifications (PAS) and Guides (hereafter referred to as "IEC Publication(s)"). Their
58 preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
59 may participate in this preparatory work. International, governmental and non-governmental organizations liaising
60 with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
61 Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
62 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
63 consensus of opinion on the relevant subjects since each technical committee has representation from all
64 interested IEC National Committees.
65 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
66 Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
67 Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
68 misinterpretation by any end user.
69 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
70 transparently to the maximum extent possible in their national and regional publications. Any divergence between
71 any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
72 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
73 assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
74 services carried out by independent certification bodies.
75 6) All users should ensure that they have the latest edition of this publication.
76 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
77 members of its technical committees and IEC National Committees for any personal injury, property damage or
78 other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
79 expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
80 Publications.
81 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
82 indispensable for the correct application of this publication.
83 9) IEC draws attention to the possibility that the implementation of this document may involve the use of (a)
84 patent(s). IEC [takes no position concerning the evidence, validity or applicability of any claimed patent rights in
85 respect thereof. As of the date of publication of this document, IEC had not received notice of (a) patent(s), which
86 may be required to implement this document. However, implementers are cautioned that this may not represent
87 the latest information, which may be obtained from the patent database available at https://patents.iec.ch. IEC
88 shall not be held responsible for identifying any or all such patent rights.
89 IEC 60598-2-2 has been prepared by subcommittee 34D: Luminaires, of IEC technical
90 committee 34: Lighting. It is an International Standard.
91 This fifth edition cancels and replaces the fourth edition published in 2023. This edition
92 constitutes a technical revision.
93 This edition includes the following significant technical changes with respect to the previous
94 edition:
95 a) the clause numbers and structure have been aligned with those of IEC 60598-1
97 The text of this International Standard is based on the following documents:
oSIST prEN IEC 60598-2-2:2024
IEC CDV 60598-2-2 © IEC 2024 4 34D/1744/CDV
Draft Report on voting
XX/XX/FDIS XX/XX/RVD
100 Full information on the voting for its approval can be found in the report on voting indicated in
101 the above table.
102 The language used for the development of this International Standard, Technical is English.
103 This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
104 accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, and the
105 ISO/IEC Directives, JTC 1 Supplement available at www.iec.ch/members_experts/refdocs. The
106 main document types developed by IEC are described in greater detail at
107 www.iec.ch/publications.
108 This Part 2-2 is to be used in conjunction with the latest edition of IEC 60598-1 and its amendment(s).
109 It was established on the basis of the tenth edition (20XX) of that standard.
111 NOTE  When “Part 1” is mentioned in this document, it refers to IEC 60598-1.
113 Where this document states "addition", "modification" or "replacement", the relevant text of Part 1 is to
114 be adapted accordingly.
116 Subclauses, notes, figures and tables additional to those in Part 1 are numbered starting from 101;
117 supplementary annexes are entitled AAA, AAB, etc.
119 A list of all parts in the IEC 60598 series, published under the general title Luminaires can be found
120 on the IEC website.
122 The committee has decided that the contents of this document will remain unchanged until the
123 stability date indicated on the IEC website under webstore.iec.ch in the data related to the
124 specific document. At this date, the document will be
125 • reconfirmed,
126 • withdrawn,
127 • replaced by a revised edition, or
128 • amended.
oSIST prEN IEC 60598-2-2:2024
IEC CDV 60598-2-2 © IEC 2024 5 34D/1744/CDV
132 LUMINAIRES –
134 Part 2-2: Particular requirements –
135 Recessed luminaires and recessed air-handling luminaires
137 1 Scope
138 This part of IEC 60598 specifies requirements for recessed luminaires and recessed air-
139 handling luminaires for use within ventilation ducts or ventilated spaces. These luminaires are
140 for use with electric light sources and with supply voltages up to 1 000 V.
141 NOTE The expressions "ventilation" and "ventilated" in this document refer to forced ventilation.
142 2 Normative references
143 This clause of Part 1 applies with the following additions::
144 IEC 60227 (all parts), Polyvinyl chloride insulated cables of rated voltages up to and including
145 450/750 V
146 IEC 60245 (all parts), Rubber insulated cables – Rated voltages up to and including 450/750 V
147 3 Terms and definitions
148 For the purposes of this document, the terms and definitions given in Part 1 applies with the
149 following additions:
150 ISO and IEC maintain terminology databases for use in standardization at the following
151 addresses:
152 • IEC Electropedia: available at https://www.electropedia.org/
153 • ISO Online browsing platform: available at https://www.iso.org/obp
155 3.101
156 air-handling luminaire
157 luminaire specially designed for use in association with an air conditioning system
158 Note 1 to entry: The air can pass either through the lamp chamber or through separate passages.
159 Note 2 to entry: For an explanation of the significance of t as applied to air-handling luminaires, see AAC.
a
160 3.102
161 static operation
162 operation of a luminaire when not handling either forced supply or extract air but permitting
163 natural convection
164 4 General test requirements
165 This Clause of Part 1 applies with the following additions:
166 4.101 General
167 For assessment of luminaires already assessed in accordance with the previous edition, full type
168 testing is not generally necessary and the product and the previous test results are reviewed only
169 against any amended clauses listed in Annex AAD
oSIST prEN IEC 60598-2-2:2024
IEC CDV 60598-2-2 © IEC 2024 6 34D/1744/CDV
171 4.102 Sequence of clauses
172 The clauses according to this document shall be applied in the following order:
174 5 Classification of luminaires
175 6 Marking
176 7 Construction
177 13 Creepage distances and clearances
178 9 Provisions for earthing
179 16 Screw terminals
180 17 Screwless terminals and electrical connections
181 8 External and internal wiring
182 10 Protection against electric shock
183 14 Endurance tests and thermal tests
184 11 Resistance to dust, solid objects and moisture
185 12 Insulation resistance and electric strength, touch current and protective conductor current
186 15 Resistance to heat, fire and tracking
188 For luminaires with an IP classification greater than IP20 the tests of Clauses 14 and 11 of Part 1 shall
189 be carried out in the following order:
191 14.3 Endurance test
192 11.2 General conditions and tests for IP classification
193 14.4 Thermal test (normal operation);
194 14.5 Thermal test (abnormal operation);
195 14.6 Thermal test (failed windings in controlgear);
196 14.7 Thermal test in regard to fault conditions in controlgear or electronic devices incorporated in
197 thermoplastic luminaires
198 11.3 Humidity test
201 4.103 Ambient temperature in an installation
203 Guidance for measurement of the ambient temperature within an installation is given within Annex
204 AAA
206 5 Classification of luminaires
207 This Clause of Part 1 applies.
208 6 Marking
209 This Clause of Part 1 applies with the following additions:
210 6.101 For recessed luminaires with two IP ratings, both ratings shall be distinctly and durably
211 marked on the luminaire. The marking shall be visible during installation on the outside of the
212 luminaire or behind a cover or part which is removed during installation . It shall be obvious to
213 which parts of the luminaire the ratings refer. The relevant information shall be provided even
214 if the rating is IP20 or the lower rating is specified as ordinary.
215 6.102 Where applicable, the relevant symbol for recessed luminaires not suitable for direct
216 mounting on normally flammable surfaces shall be distinctly and durably marked on the
217 luminaire and be visible during installation or behind a cover or part which
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