SIST EN IEC 60794-1-218:2025

Optical fibre cables - Part 1-218: Generic specification - Basic optical cable test procedures - Environmental test methods - Mid-span temperature cycling test for exposed optical units, Method F18 (IEC 60794-1-218:2025)

IEC 60794-1-218:2025 defines test procedures to establish uniform requirements for the environmental performance of:
- optical fibre cables for telecommunication equipment and devices employing similar techniques, and
- cables having a combination of both optical fibres and electrical conductors.
Throughout this document, the wording "optical cable" can also include optical fibre units, microduct fibre units, etc.
This document defines a test standard to determine the ability of optical cable elements from a cable exposed in a mid-span entry (expressed) and stored in a pedestal, closure or similar to withstand the effects of temperature cycling by observing changes in attenuation. The optical cable element bundles up single or multiple optical fibres, e.g. loose tube, tight buffer tube, or optical fibre ribbon.
See IEC 60794-1-2 for a reference guide to test methods of all types and for general requirements and definitions.
This first edition partially cancels and replaces the second edition of IEC 60794-1-22 published in 2017. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to IEC 60794‑1‑22:2017:
a) extension of the test method scope to apply to any optical cables with optical cable elements including loose tubes, tight buffer tubes, and ribbons, exposed in a mid-span entry (expressed) and stored in a pedestal, closure, or similar;
b) modification of the test method title according to item a);
c) deletion of the tube diameter requirement for the test object;
d) modification of the default temperature range according to IEC 60794-1-1;
e) addition of the default coiled turns in the assembly during the test.

Lichtwellenleiterkabel - Teil 1-218: Fachgrundspezifikation - Grundlegende Prüfverfahren für Lichtwellenleiterkabel - Umweltprüfverfahren - Mid-Span-Temperaturwechselprüfung für freiliegende optische Einheiten, Verfahren F18 (IEC 60794-1-218:2025)

Câbles à fibres optiques - Partie 1-218: Spécification générique - Procédures fondamentales d’essais des câbles optiques - Méthodes d’essai d’environnement - Essai de cycles de température à mi-portée pour les éléments optiques exposés, méthode f18 (IEC 60794-1-218:2025)

IEC 60794-1-218: 2025 définit les procédures d’essai utilisées afin d'établir des exigences uniformes applicables aux performances environnementales:
- des câbles à fibres optiques pour les équipements de télécommunications et dispositifs utilisant des techniques analogues; et
- des câbles constitués de fibres optiques d'une part et de conducteurs électriques d'autre part.
Dans le présent document, l'expression "câble optique" peut également inclure des assemblages de fibres optiques, des assemblages de fibres pour microconduits, etc.
Le présent document définit une norme d'essai en vue de déterminer la capacité des éléments de câbles optiques d'un câble exposé dans un accès à mi-portée (traversants) et stockés dans une borne, un boîtier ou un dispositif analogue, à résister aux effets des cycles de température en observant les variations de l'affaiblissement. L’élément de câble optique regroupe en faisceau une ou plusieurs fibres optiques, par exemple tube à structure lâche, tube à revêtement de protection serré ou ruban de fibres optiques.
Voir l’IEC 60794-1-2 à titre de guide de référence pour les méthodes d'essai de tous les types et concernant les exigences générales et les définitions.
Cette première édition annule et remplace partiellement la deuxième édition de l'IEC 60794­1­22 parue en 2017. Cette édition constitue une révision technique.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l’IEC 60794‑1‑22:2017:
a) Élargissement du domaine d'application, la méthode d'essai étant applicable à tous les câbles optiques équipés d'éléments de câbles optiques, y compris les tubes à structure lâche, les tubes à revêtement de protection serré et les rubans, exposés dans un accès à mi-portée (traversants) et stockés dans une borne, un boîtier ou dispositif analogue;
b) modification du titre de la méthode d'essai conformément au point a);
c) suppression de l’exigence pour le diamètre du tube concernant l’objet d’essai;
d) modification de la plage de températures par défaut conformément à l’IEC 60794-1-1;
e) ajout de spires enroulées par défaut dans le montage pendant l'essai.

Optični kabli - 1-218. del: Splošna specifikacija - Osnovni preskusni postopki za optične kable - Okoljske preskusne metode - Preskušanje izpostavljenih optičnih enot s kroženjem temperature v srednjem razponu, metoda F18 (IEC 60794-1-218:2025)

General Information

• Status: Published
• Public Enquiry End Date: 29-Feb-2024
• Publication Date: 20-Oct-2025
• ICS: 33.180.10 - Fibres and cables
• Technical Committee: MOC - Mobile Communications
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 16-Oct-2025
• Due Date: 21-Dec-2025
• Completion Date: 21-Oct-2025
• Ref Project: EN IEC 60794-1-218:2025 - Optical fibre cables - Part 1-218: Generic specification - Basic optical cable test procedures - Environmental test methods - Mid-span temperature cycling test for exposed optical units, Method F18

Relations

• Replaces: SIST EN IEC 60794-1-22:2018 - Optical fibre cables - Part 1-22: Generic specification - Basic optical cable test procedures - Environmental test methods (IEC 60794-1-22:2017)
• Effective Date: 01-Dec-2025

Standards Content (Sample)

SLOVENSKI STANDARD
01-december-2025
Nadomešča:
SIST EN IEC 60794-1-22:2018
Optični kabli - 1-218. del: Splošna specifikacija - Osnovni preskusni postopki za
optične kable - Okoljske preskusne metode - Preskušanje izpostavljenih optičnih
enot s kroženjem temperature v srednjem razponu, metoda F18 (IEC 60794-1-
218:2025)
Optical fibre cables - Part 1-218: Generic specification - Basic optical cable test
procedures - Environmental test methods - Mid-span temperature cycling test for
exposed optical units, Method F18 (IEC 60794-1-218:2025)
Lichtwellenleiterkabel - Teil 1-218: Fachgrundspezifikation - Grundlegende Prüfverfahren
für Lichtwellenleiterkabel - Umweltprüfverfahren - Mid-Span-Temperaturwechselprüfung
für freiliegende optische Einheiten, Verfahren F18 (IEC 60794-1-218:2025)
Câbles à fibres optiques - Partie 1-218: Spécification générique - Procédures
fondamentales d’essais des câbles optiques - Méthodes d’essai d’environnement - Essai
de cycles de température à mi-portée pour les éléments optiques exposés, méthode f18
(IEC 60794-1-218:2025)
Ta slovenski standard je istoveten z: EN IEC 60794-1-218:2025
ICS:
33.180.10 (Optična) vlakna in kabli Fibres and cables
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 60794-1-218

NORME EUROPÉENNE
EUROPÄISCHE NORM October 2025
ICS 33.180.10 Supersedes EN IEC 60794-1-22:2018 (partially)
English Version
Optical fibre cables - Part 1-218: Generic specification - Basic
optical cable test procedures - Environmental test methods -
Mid-span temperature cycling test for exposed optical units,
Method F18
(IEC 60794-1-218:2025)
Câbles à fibres optiques - Partie 1-218: Spécification Lichtwellenleiterkabel - Teil 1-218: Fachgrundspezifikation -
générique - Procédures fondamentales d'essais des câbles Grundlegende Prüfverfahren für Lichtwellenleiterkabel -
optiques - Méthodes d'essai d'environnement - Essai de Umweltprüfverfahren - Mid-Span-
cycles de température à mi-portée pour les éléments Temperaturwechselprüfung für freiliegende optische
optiques exposés, Méthode F18 Einheiten, Verfahren F18
(IEC 60794-1-218:2025) (IEC 60794-1-218:2025)
This European Standard was approved by CENELEC on 2025-09-11. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard 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 European Standard 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 60794-1-218:2025 E

European foreword
The text of document 86A/2587/FDIS, future edition 1 of IEC 60794-1-218, prepared by SC 86A
"Fibres and cables" of IEC/TC 86 "Fibre optics" was submitted to the IEC-CENELEC parallel vote and
approved by CENELEC as EN IEC 60794-1-218:2025.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2026-10-31
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2028-10-31
document have to be withdrawn
This document partially supersedes EN IEC 60794-1-22:2018 and all of its amendments and
corrigenda (if any).
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.
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 60794-1-218:2025 was approved by CENELEC as a
European Standard without any modification.
In the official version, for Bibliography, the following note has to be added for the standard indicated:
IEC 60794-1-2 NOTE Approved as EN IEC 60794-1-2
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.
Publication Year Title EN/HD Year
IEC 60793-1-46 - Optical fibres - Part 1-46: Measurement EN IEC 60793-1-46 -
methods and test procedures - Monitoring
of changes in attenuation
IEC 60794-1-1 2023 Optical fibre cables - Part 1-1: Generic EN IEC 60794-1-1 2023
specification - General
IEC 60794-1-218 ®
Edition 1.0 2025-08
INTERNATIONAL
STANDARD
Optical fibre cables -
Part 1-218: Generic specification - Basic optical cable test procedures -
Environmental test methods - Mid-span temperature cycling test for exposed
optical units, Method F18
ICS 33.180.10  ISBN 978-2-8327-0609-1

IEC 60794-1-218:2025-08(en)
IEC 60794-1-218:2025 © IEC 2025
CONTENTS
FOREWORD. 2
INTRODUCTION . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Method F18 – Mid-span temperature cycling test for exposed optical cable
elements . 5
4.1 Object . 5
4.2 Sample . 6
4.3 Apparatus . 6
4.4 Procedure . 6
4.5 Requirements . 7
4.6 Details to be specified . 8
4.7 Details to be reported . 8
Bibliography . 9

Figure 1 – Temperature cycling procedure . 7

IEC 60794-1-218:2025 © IEC 2025
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
Optical fibre cables -
Part 1-218: Generic specification - Basic optical cable test procedures -
Environmental test methods - Mid-span temperature cycling test for
exposed optical cable elements, method F18

FOREWORD
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9) IEC draws attention to the possibility that the implementation of this document may involve the use of (a)
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the latest information, which may be obtained from the patent database available at https://patents.iec.ch. IEC
shall not be held responsible for identifying any or all such patent rights.
IEC 60794-1-218 has been prepared by subcommittee 86A: Fibres and cables, of IEC technical
committee 86: Fibre optics. It is an International Standard.
This first edition partially cancels and replaces the second edition of IEC 60794-1-22 published
in 2017. This edition constitutes a technical revision.
IEC 60794-1-218:2025 © IEC 2025
This edition includes the following significant technical changes with respect to
IEC 60794-1-22:2017:
a) extension of the test method scope to apply to any optical cables with optical cable elements
including loose tubes, tight buffer tubes, and ribbons, exposed in a mid-span entry
(expressed) and stored in a pedestal, closure, or similar;
b) modification of the test method title according to item a);
c) deletion of the tube diameter requirement for the test object;
d) modification of the default temperature range according to IEC 60794-1-1;
e) addition of the default coiled turns in the assembly during the test.
The text of this International Standard is based on the following documents:
Draft Report on voting
86A/2587/FDIS 86A/2608/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 International Standard is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
...