SIST EN IEC 60079-25:2022/A1:2026

SLOVENSKI STANDARD
01-februar-2026
Eksplozivne atmosfere - 25. del: Lastnovarni električni sistemi - Dopolnilo A1 (IEC
60079-25:2020/AMD1:2025)
Explosive atmospheres - Part 25: Intrinsically safe electrical systems (IEC 60079-
25:2020/AMD1:2025)
Explosionsgefährdete Bereiche - Teil 25: Eigensichere Systeme (IEC 60079-
25:2020/AMD1:2025)
Atmosphères explosives - Partie 25: Systèmes électriques de sécurité intrinsèque (IEC
60079-25:2020/AMD1:2025)
Ta slovenski standard je istoveten z: EN IEC 60079-25:2022/A1:2025
ICS:
29.260.20 Električni aparati za Electrical apparatus for
eksplozivna ozračja explosive atmospheres
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 60079-25:2022/A1

NORME EUROPÉENNE
EUROPÄISCHE NORM November 2025
ICS 29.260.20
English Version
Explosive atmospheres - Part 25: Intrinsically safe electrical
systems
(IEC 60079-25:2020/AMD1:2025)
Atmosphères explosives - Partie 25 : Systèmes électriques Explosionsgefährdete Bereiche - Teil 25: Eigensichere
de sécurité intrinsèque Systeme
(IEC 60079-25:2020/AMD1:2025) (IEC 60079-25:2020/AMD1:2025)
This amendment A1 modifies the European Standard EN IEC 60079-25:2022; it was approved by CENELEC on 2025-10-30. CENELEC
members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this amendment 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 amendment 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2025 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 60079-25:2022/A1:2025 E

European foreword
The text of document 31G/426/FDIS, future edition 3 of IEC 60079-25/AMD1, prepared by SC 31G
"Intrinsically-safe apparatus" of IEC/TC 31 "Equipment for explosive atmospheres" was submitted to
the IEC-CENELEC parallel vote and approved by CENELEC as EN IEC 60079-25:2022/A1:2025.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2026-11-30
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2028-11-30
document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
This document has been prepared under a standardization request addressed to CENELEC by the
European Commission. The Standing Committee of the EFTA States subsequently approves these
requests for its Member States.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 60079-25:2020/AMD1:2025 was approved by CENELEC as
a European Standard without any modification.
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
NOTE 1  Where 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.cencenelec.eu.
Add:
Publication Year Title EN/HD Year
IEC/TS 60079-47 - Explosive atmospheres - Part 47: CLC IEC/TS 60079- -
Equipment protection by 2-wire intrinsically 47
safe ethernet concept (2-WISE)

IEC 60079-25 ®
Edition 3.0 2025-09
INTERNATIONAL
STANDARD
AMENDMENT 1
Explosive atmospheres -
Part 25: Intrinsically safe electrical systems
ICS 29.260.20  ISBN 978-2-8327-0720-3

IEC 60079-25:2020-06/AMD1:2025-09(en)

IEC 60079-25:2020/AMD1:2025 © IEC 2025
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
Explosive atmospheres -
Part 25: Intrinsically safe electrical systems

AMENDMENT 1
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. IEC collaborates closely with the International Organization for
Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence between
any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) IEC draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). IEC takes no position concerning the evidence, validity or applicability of any claimed patent rights in
respect thereof. As of the date of publication of this document, IEC had not received notice of (a) patent(s), which
may be required to implement this document. However, implementers are cautioned that this may not represent
the latest information, which may be obtained from the patent database available at https://patents.iec.ch [and/or]
www.iso.org/patents. IEC shall not be held responsible for identifying any or all such patent rights.
Amendment 1 to IEC 60079-25:2020 has been prepared by subcommittee 31G: Intrinsically
safe apparatus, of IEC technical committee 31: Equipment for explosive atmospheres.
The text of this Amendment is based on the following documents:
Draft Report on voting
31G/426/FDIS 31G/432/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this Amendment is English.
IEC 60079-25:2020/AMD1:20
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