SIST EN IEC 60794-1-126:2026
(Main)Optical fibre cables - Part 1-126: Generic specification - Basic optical cable test procedures - Mechanical tests methods - Galloping, Method E26 (IEC 60794-1-126:2026)
Optical fibre cables - Part 1-126: Generic specification - Basic optical cable test procedures - Mechanical tests methods - Galloping, Method E26 (IEC 60794-1-126:2026)
IEC 60794-1-126:2026 defines the test procedures used to establish uniform requirements for mechanical performance - galloping. It applies to optical fibre cables like ADSS, OPGW or OPPC that can be exposed to galloping phenomena. See IEC 60794-1-2 for general requirements and definitions and for a complete reference guide to test methods of all types. This first edition cancels and replaces Method E26 of the first edition of IEC 60794‑1‑21 published in 2015. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) Addition of "for ADSS" and "for OPGW and OPPC" in 4.7, a);
b) Addition of "L4" in Figure 1 and in 4.7, b);
c) Change of the specified static sag angle to ≤ 1,5±0,5°;
d) Improvement of Figure 1;
Lichtwellenleiterkabel – Teil 1-126: Fachgrundspezifikation - Grundlegende Prüfverfahren für Lichtwellenleiterkabel - Mechanische Prüfverfahren - Galoppieren, Verfahren E26 (IEC 60794-1-126:2026)
Câbles à fibres optiques - Partie 1-126: Spécification générique - Procédures fondamentales d’essais des câbles optiques - Méthodes d’essais mécaniques - Galop, Méthode E26 (IEC 60794-1-126:2026)
IEC 60794-1-126: 2026 définit les procédures d’essai utilisées pour établir des exigences uniformes pour les performances mécaniques aux phénomènes de galop. Elle s’applique aux câbles à fibres optiques (câble autoportant tout diélectrique (ADSS, All Dielectric Self-Supporting), câble de garde à fibres optiques (OPGW, OPtical Ground Wire) ou conducteur de phase à fibres optiques (OPPC, OPtical Phase Conductor), par exemple) qui peuvent être exposés à des phénomènes de galop. Voir l’IEC 60794-1-2 pour les exigences générales et les définitions, et un guide de référence complet pour tous les types de méthodes d’essai. Cette première édition annule et remplace la Méthode E26 donnée dans la première édition de l’IEC 60794‑1‑21 parue en 2015. Cette édition constitue une révision technique.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
a) ajout de "pour un câble ADSS" et "pour des câbles OPGW et OPPC" au 4.7, a);
b) ajout de "L4" à la Figure 1 et au 4.7, b);
c) modification de l’angle formé par la flèche statique spécifié à ≤ 1,5±0,5°;
d) amélioration de la Figure 1.
Optični kabli - 1-126. del: Splošne specifikacije - Osnovni postopki preskušanja optičnih kablov - Metode mehanskih preskusov - Galopiranje, metoda E26 (IEC 60794-1-126:2026)
IEC 60794-1-126:2026 določa preskusne postopke, ki se uporabljajo za vzpostavitev enotnih zahtev glede mehanskih lastnosti - nihanja (galloping). Uporablja se za optične kable, kot so ADSS, OPGW ali OPPC, ki so lahko izpostavljeni pojavom nihanja. Za splošne zahteve in definicije ter za popoln referenčni vodnik po preskusnih metodah vseh vrst glejte IEC 60794-1-2. Ta prva izdaja preklicuje in nadomešča Metodo E26 prve izdaje IEC 60794‑1‑21, objavljene leta 2015. Ta izdaja predstavlja tehnično revizijo.
Ta izdaja vključuje naslednje pomembne tehnične spremembe v primerjavi s prejšnjo izdajo:
a) Dodatek "za ADSS" in "za OPGW in OPPC" v 4.7, a);
b) Dodatek "L4" v Sliki 1 in v 4.7, b);
c) Sprememba določenega statičnega kota upogiba na ≤ 1,5±0,5°;
d) Izboljšava Slike 1;
General Information
- Status
- Published
- Public Enquiry End Date
- 30-Apr-2025
- Publication Date
- 22-Jun-2026
- Technical Committee
- MOC - Mobile Communications
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 16-Jun-2026
- Due Date
- 21-Aug-2026
- Completion Date
- 23-Jun-2026
Relations
- Effective Date
- 01-Sep-2026
- Effective Date
- 01-Sep-2026
- Effective Date
- 26-May-2026
- Effective Date
- 26-May-2026
- Effective Date
- 16-Jun-2026
- Effective Date
- 16-Jun-2026
- Effective Date
- 16-Jun-2026
Overview
SIST EN IEC 60794-1-126:2026 is an international standard that details the basic mechanical test procedures - specifically pertaining to the galloping phenomenon - for optical fibre cables. Published by the Slovenian Institute for Standardization (SIST), this document supersedes the previous Method E26 in IEC 60794-1-21:2015, incorporating technical revisions to ensure updated, harmonized testing frameworks. The standard is applicable to critical types of aerial optical fibre cables, including All-Dielectric Self-Supporting (ADSS) cables, Optical Ground Wire (OPGW), and Optical Phase Conductor (OPPC), which may be subject to galloping due to environmental effects such as wind and ice load.
Uniformity and reliability in mechanical performance testing are the standard's core objectives, ensuring that cables used in telecommunications and power utilities meet robust international criteria for durability and performance under dynamic load conditions.
Key Topics
Scope and Applicability
- Focuses on optical fibre cables that may experience galloping due to adverse weather conditions.
- Applies to ADSS, OPGW, and OPPC cable types deployed in aerial installations.
Test Procedures
- Describes Method E26 for simulating and testing cable galloping.
- Specifies a standardized mechanical test rig and procedure to replicate dynamic stresses caused by galloping motions, typically resulting from ice accretion and wind.
Sample and Test Setup
- Defines required cable sample lengths and termination to ensure accurate optical measurement and mechanical testing.
- Instructs on securing cables, tensioning parameters, and monitoring devices used to assess performance.
Performance Criteria
- Outlines the monitoring of optical attenuation changes throughout test cycles.
- Establishes requirements for permissible physical and optical degradation.
Reporting Protocols
- Lists the key technical attributes and data points to be reported, supporting transparency and comparability of test outcomes.
Revision Highlights
- Updates terminology to distinctly address ADSS, OPGW, and OPPC.
- Modifies figures and static sag angle specifications for greater clarity and precision.
Applications
SIST EN IEC 60794-1-126:2026 serves a pivotal role in the design, quality assurance, and type testing of aerial optical fibre cables used in environments susceptible to dynamic forces. Major applications include:
- Telecommunications Infrastructure: Ensuring consistent performance of optical fibre networks in aerial deployments, especially across regions with challenging weather patterns.
- Power Transmission Systems: Validating OPGW and OPPC installations on overhead power lines, where galloping risks are significant due to ice and wind.
- Cable Manufacturing: Guiding manufacturers in type-testing products to ensure compliance with international mechanical standards and reduce risk of in-service failure.
- Testing Laboratories: Providing standardized procedures for contract and third-party labs to verify cable products against mechanical criteria before deployment.
The standard's uniform methodology supports reliable cable selection, risk mitigation, and network resilience, directly benefiting manufacturers, utilities, telecom operators, and infrastructure planners.
Related Standards
For comprehensive understanding and complete application, refer to these related standards:
- IEC 60794-1-1: Optical fibre cables - Part 1-1: Generic specification - General
- IEC 60794-1-2: Optical fibre cables – Part 1-2: Generic specification - Basic optical cable test procedures - General guidance
- IEC 60793-1-46: Optical fibres – Measurement methods and test procedures - Monitoring of changes in attenuation
These documents offer general requirements, testing frameworks, and detailed definitions that complement the specific procedures outlined in SIST EN IEC 60794-1-126:2026, forming a holistic support system for quality assurance in fibre optic cable deployment.
By setting unified testing protocols for galloping phenomena in optical fibre cables, SIST EN IEC 60794-1-126:2026 ensures safer, more reliable aerial cable installations across global telecom and utility networks, supporting sustainable infrastructure growth.
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Frequently Asked Questions
SIST EN IEC 60794-1-126:2026 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Optical fibre cables - Part 1-126: Generic specification - Basic optical cable test procedures - Mechanical tests methods - Galloping, Method E26 (IEC 60794-1-126:2026)". This standard covers: IEC 60794-1-126:2026 defines the test procedures used to establish uniform requirements for mechanical performance - galloping. It applies to optical fibre cables like ADSS, OPGW or OPPC that can be exposed to galloping phenomena. See IEC 60794-1-2 for general requirements and definitions and for a complete reference guide to test methods of all types. This first edition cancels and replaces Method E26 of the first edition of IEC 60794‑1‑21 published in 2015. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) Addition of "for ADSS" and "for OPGW and OPPC" in 4.7, a); b) Addition of "L4" in Figure 1 and in 4.7, b); c) Change of the specified static sag angle to ≤ 1,5±0,5°; d) Improvement of Figure 1;
IEC 60794-1-126:2026 defines the test procedures used to establish uniform requirements for mechanical performance - galloping. It applies to optical fibre cables like ADSS, OPGW or OPPC that can be exposed to galloping phenomena. See IEC 60794-1-2 for general requirements and definitions and for a complete reference guide to test methods of all types. This first edition cancels and replaces Method E26 of the first edition of IEC 60794‑1‑21 published in 2015. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) Addition of "for ADSS" and "for OPGW and OPPC" in 4.7, a); b) Addition of "L4" in Figure 1 and in 4.7, b); c) Change of the specified static sag angle to ≤ 1,5±0,5°; d) Improvement of Figure 1;
SIST EN IEC 60794-1-126:2026 is classified under the following ICS (International Classification for Standards) categories: 33.180.10 - Fibres and cables. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN IEC 60794-1-126:2026 has the following relationships with other standards: It is inter standard links to SIST EN 60794-1-21:2015, SIST EN 60794-1-21:2015/A1:2020, SIST EN IEC 60793-1-46:2024, SIST EN IEC 60794-1-1:2023, SIST EN IEC 62148-1:2018, SIST EN 3745-505:2018, SIST-TS CLC/TS 50621:2016. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
SIST EN IEC 60794-1-126:2026 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
01-september-2026
Nadomešča:
SIST EN 60794-1-21:2015
Optični kabli - 1-126. del: Splošna specifikacija - Osnovni preskusni postopki za
optične kable - Mehanske preskusne metode - Galopiranje, metoda E26 (IEC 60794
-1-126:2026)
Optical fibre cables - Part 1-126: Generic specification - Basic optical cable test
procedures - Mechanical tests methods - Galloping, Method E26 (IEC 60794-1-
126:2026)
Lichtwellenleiterkabel – Teil 1-126: Fachgrundspezifikation - Grundlegende
Prüfverfahren für Lichtwellenleiterkabel - Mechanische Prüfverfahren - Galoppieren,
Verfahren E26 (IEC 60794-1-126:2026)
Câbles à fibres optiques - Partie 1-126: Spécification générique - Procédures
fondamentales d’essais des câbles optiques - Méthodes d’essais mécaniques - Galop,
Méthode E26 (IEC 60794-1-126:2026)
Ta slovenski standard je istoveten z: EN IEC 60794-1-126:2026
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 60794-1-126
NORME EUROPÉENNE
EUROPÄISCHE NORM June 2026
ICS 33.180.10 Supersedes EN 60794-1-21:2015 (partially); EN 60794-1-
21:2015/A1:2020 (partially)
English Version
Optical fibre cables - Part 1-126: Generic specification - Basic
optical cable test procedures - Mechanical tests methods -
Galloping, Method E26
(IEC 60794-1-126:2026)
Câbles à fibres optiques - Partie 1-126: Spécification Lichtwellenleiterkabel - Teil 1-126: Fachgrundspezifikation -
générique - Procédures fondamentales d'essais des câbles Grundlegende Prüfverfahren für Lichtwellenleiterkabel -
optiques - Méthodes d'essais mécaniques - Galop, Mechanische Prüfverfahren - Galoppieren, Verfahren E26
Méthode E26 (IEC 60794-1-126:2026)
(IEC 60794-1-126:2026)
This European Standard was approved by CENELEC on 2026-05-27. 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
© 2026 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 60794-1-126:2026 E
European foreword
The text of document 86A/2653/FDIS, future edition 1 of IEC 60794-1-126, 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 60794-1-126:2026.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2027-06-30
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2029-06-30
document have to be withdrawn
This document partially supersedes EN 60794-1-21 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 60794-1-126:2026 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 60794-1-1 - Optical fibre cables - Part 1-1: Generic EN IEC 60794-1-1 -
specification - General
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 60794-1-126 ®
Edition 1.0 2026-04
INTERNATIONAL
STANDARD
Optical fibre cables -
Part 1-126: Generic specification - Basic optical cable test procedures -
Mechanical tests methods - Galloping, Method E26
ICS 33.180.10 ISBN 978-2-8327-1129-3
IEC 60794-1-126:2026-04(en)
IEC 60794-1-126:2026 © IEC 2026
CONTENTS
FOREWORD . 2
INTRODUCTION . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Method E26: Galloping . 5
4.1 Object . 5
4.2 Sample . 5
4.3 Apparatus . 6
4.4 Procedure . 6
4.5 Loading criteria . 6
4.6 Requirements . 7
4.7 Details to be specified . 7
4.8 Details to be reported . 7
Bibliography . 9
Figure 1 – Cable galloping test set-up . 7
Table 1 – Test values for cable galloping test . 8
IEC 60794-1-126:2026 © IEC 2026
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
Optical fibre cables -
Part 1-126: Generic specification - Basic optical cable test procedures -
Mechanical tests methods - Galloping, Method E26
FOREWORD
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