EN IEC 60794-1-307:2025
(Main)Optical fibre cables - Part 1-307: Generic specification - Basic optical cable test procedures - Cable element test methods - Tube kinking, method G7
Optical fibre cables - Part 1-307: Generic specification - Basic optical cable test procedures - Cable element test methods - Tube kinking, method G7
IEC 60794-1-307:2025 describes test procedures used in establishing uniform requirements of tubes for the mechanical property kinking. This document applies to optical fibre cables for use with telecommunication equipment and devices employing similar techniques, and to cables having a combination of both optical fibres and electrical conductors. Throughout the document, the wording "optical cable" can also include optical fibre units, microduct fibre units, etc. This first edition partially cancels and replaces the second edition of IEC 60794‑1-23 published in 2019. This edition constitutes a technical revision.This edition includes the following significant technical changes with respect to IEC 60794‑1‑23:2019: a) renumbering of the existing test method G7 as G7A; b) addition of test parameter L and calculated loop diameter D in Table 1 for method G7A; c) addition of a new test procedure for tubes routed within installation devices and numbering it as G7B.
Lichtwellenleiterkabel - Teil 1-307: Fachgrundspezifikation - Grundlegende Prüfverfahren für optische Kabel - Prüfverfahren für Kabelelemente - Rohrknickung, Verfahren G7
Câbles à fibres optiques - Partie 1-307: Spécification générique – Procédures fondamentales d’essai des câbles optiques – Méthodes d’essai des éléments de câble – Pliure du tube, méthode G7
IEC 60794-1-307: 2025 décrit les procédures d’essai utilisées afin d'établir des exigences uniformes relatives à la caractéristique mécanique suivante des tubes: pliure. Le présent document s’applique aux câbles à fibres optiques destinés à être utilisés dans les équipements de télécommunication et les dispositifs qui utilisent des techniques analogues, ainsi qu'aux câbles constitués de fibres optiques d'une part et de conducteurs électriques d'autre part. Dans tout le document, l'expression "câble optique" peut également inclure des assemblages de fibres optiques, des assemblages de fibres pour microconduits, etc. Cette première édition annule et remplace partiellement la deuxième édition de l'IEC 60794‑1‑23 parue en 2019. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l’IEC 60794‑1‑23:2019: a) renumérotation de la méthode d’essai existante G7 en G7A; b) ajout du paramètre d’essai L et du diamètre de la boucle calculé D dans le Tableau 1 pour la méthode G7A; c) ajout d’une nouvelle procédure d’essai pour les tubes acheminés dans les dispositifs d’installation et numérotation en G7B.
Optični kabli - 1-307. del: Splošna specifikacija - Osnovni preskusni postopki za optične kable - Preskusne metode za kabelske elemente - Pregibanje cevi, metoda G7 (IEC 60794-1-307:2025)
Ta del standarda IEC 60794 opisuje preskusne postopke, ki jih je treba uporabljati pri določanju enotnih zahtev glede cevi za mehansko lastnost – pregibanje.
Ta dokument se uporablja za optične kable za uporabo s telekomunikacijsko opremo in napravami, ki uporabljajo podobne tehnike, ter kable s kombinacijo optičnih vlaken in električnih vodnikov.
V tem dokumentu lahko besedna zveza »optični kabel« zajema tudi optične enote, mikrokanale itd.
General Information
Relations
Overview
EN IEC 60794-1-307:2025 - titled Optical fibre cables - Part 1-307: Generic specification - Basic optical cable test procedures - Cable element test methods - Tube kinking, method G7 - defines standardized test procedures to assess the tube kinking behaviour of optical fibre cable elements. Published by CLC/CENELEC as an adoption of IEC 60794-1-307:2025, this first edition reorganizes and updates the previous IEC 60794‑1‑23:2019 kinking method and introduces a new procedure for tubes routed in installation devices.
Key topics and requirements
- Purpose: Determine the ability of tubes containing optical fibres to withstand mechanical stresses during installation, splicing and storage (i.e., detect kinking when coiled).
- Scope: Applies to optical fibre cables, optical fibre units and microduct fibre units, including cables that combine optical fibres with electrical conductors.
- Two test procedures:
- Method G7A - the renumbered original kinking test. Includes sample requirements (tube length ≥ L + 50 mm; typically five samples unless otherwise specified), apparatus and procedure descriptions, and pass/fail criteria.
- Method G7B - a new procedure addressing tubes routed within installation devices (e.g., ducts, trays) with dedicated apparatus and movement profiles.
- Technical updates: Addition of test parameter L and calculated loop diameter D in Table 1 for G7A; formal separation and numbering of G7A and G7B.
- Test documentation: The standard specifies details to be reported and specified (test parameters, sample preparation, apparatus configuration) and refers to Figure(s) and Table(s) for setup and recommended parameters.
Practical applications
- Quality assurance and type testing: Manufacturers use G7 tests during product development and routine production QA to verify tube resilience to kinking.
- Acceptance and compliance testing: Test laboratories and purchasers use the standard to confirm supplier claims and ensure cables meet mechanical integrity expectations for installation and storage.
- Design validation: R&D teams validate new tube materials, microduct units, and cable constructions for robustness in real-world handling and coiling scenarios.
- Network deployment planning: Operators and contractors reference results to select cable types suited to tight routing, splicing conditions and storage constraints.
Who should use this standard
- Cable manufacturers and designers
- Independent test laboratories and certification bodies
- Network operators, procurement teams and installers
- R&D and materials engineers working on optical cable elements
Related standards
- IEC 60794-1-2 - Basic optical cable test procedures - General guidance (referenced normative guidance)
- Previous edition: IEC 60794‑1‑23:2019 (partially superseded)
Keywords: EN IEC 60794-1-307:2025, tube kinking, optical fibre cables, method G7, G7A, G7B, cable element test methods, IEC 60794.
Frequently Asked Questions
EN IEC 60794-1-307:2025 is a standard published by CLC. Its full title is "Optical fibre cables - Part 1-307: Generic specification - Basic optical cable test procedures - Cable element test methods - Tube kinking, method G7". This standard covers: IEC 60794-1-307:2025 describes test procedures used in establishing uniform requirements of tubes for the mechanical property kinking. This document applies to optical fibre cables for use with telecommunication equipment and devices employing similar techniques, and to cables having a combination of both optical fibres and electrical conductors. Throughout the document, the wording "optical cable" can also include optical fibre units, microduct fibre units, etc. This first edition partially cancels and replaces the second edition of IEC 60794‑1-23 published in 2019. This edition constitutes a technical revision.This edition includes the following significant technical changes with respect to IEC 60794‑1‑23:2019: a) renumbering of the existing test method G7 as G7A; b) addition of test parameter L and calculated loop diameter D in Table 1 for method G7A; c) addition of a new test procedure for tubes routed within installation devices and numbering it as G7B.
IEC 60794-1-307:2025 describes test procedures used in establishing uniform requirements of tubes for the mechanical property kinking. This document applies to optical fibre cables for use with telecommunication equipment and devices employing similar techniques, and to cables having a combination of both optical fibres and electrical conductors. Throughout the document, the wording "optical cable" can also include optical fibre units, microduct fibre units, etc. This first edition partially cancels and replaces the second edition of IEC 60794‑1-23 published in 2019. This edition constitutes a technical revision.This edition includes the following significant technical changes with respect to IEC 60794‑1‑23:2019: a) renumbering of the existing test method G7 as G7A; b) addition of test parameter L and calculated loop diameter D in Table 1 for method G7A; c) addition of a new test procedure for tubes routed within installation devices and numbering it as G7B.
EN IEC 60794-1-307:2025 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.
EN IEC 60794-1-307:2025 has the following relationships with other standards: It is inter standard links to EN IEC 60794-1-23:2019. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase EN IEC 60794-1-307:2025 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CLC standards.
Standards Content (Sample)
SLOVENSKI STANDARD
01-junij-2025
Optični kabli - 1-307. del: Splošna specifikacija - Osnovni preskusni postopki za
optične kable - Preskusne metode za kabelske elemente - Pregibanje cevi, metoda
G7 (IEC 60794-1-307:2025)
Optical fibre cables - Part 1-307: Generic specification - Basic optical cable test
procedures - Cable element test methods - Tube kinking, method G7 (IEC 60794-1-
307:2025)
Lichtwellenleiterkabel - Teil 1-307: Fachgrundspezifikation - Grundlegende Prüfverfahren
für optische Kabel - Prüfverfahren für Kabelelemente - Schlauchknickung, Verfahren G7
(IEC 60794-1-307:2025)
Câbles à fibres optiques - Partie 1-307: Spécification générique - Procédures
fondamentales d’essai des câbles optiques - Méthodes d’essai des éléments de câble -
Pliure du tube, méthode G7 (IEC 60794-1-307:2025)
Ta slovenski standard je istoveten z: EN IEC 60794-1-307:2025
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 60794-1-307
NORME EUROPÉENNE
EUROPÄISCHE NORM April 2025
ICS 33.180.10 Supersedes EN IEC 60794-1-23:2019 (partially)
English Version
Optical fibre cables - Part 1-307: Generic specification - Basic
optical cable test procedures - Cable element test methods -
Tube kinking, method G7
(IEC 60794-1-307:2025)
Câbles à fibres optiques - Partie 1-307: Spécification Lichtwellenleiterkabel - Teil 1-307: Fachgrundspezifikation -
générique - Procédures fondamentales d'essai des câbles Grundlegende Prüfverfahren für optische Kabel -
optiques - Méthodes d'essai des éléments de câble - Pliure Prüfverfahren für Kabelelemente -Schlauchknickung,
du tube, méthode G7 Verfahren G7
(IEC 60794-1-307:2025) (IEC 60794-1-307:2025)
This European Standard was approved by CENELEC on 2025-04-10. 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 60794-1-307:2025 E
European foreword
The text of document 86A/2537/FDIS, future edition 1 of IEC 60794-1-307, 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 60794-1-307:2025.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2026-04-30
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2028-04-30
document have to be withdrawn
This document supersedes EN IEC 60794-1-23:2019 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 60794-1-307:2025 was approved by CENELEC as a
European Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standard indicated:
IEC 60794-1-21:2015 NOTE Approved as EN 60794-1-21:2015 (not modified)
IEC 60794-1-23:2019 NOTE Approved as EN IEC 60794-1-23:2019 (not modified)
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 60794-1-2 - Optical fibre cables - Part 1-2: Generic EN IEC 60794-1-2 -
specification - Basic optical cable test
procedures - General guidance
IEC 60794-1-307 ®
Edition 1.0 2025-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Optical fibre cables –
Part 1-307: Generic specification – Basic optical cable test procedures – Cable
element test methods – Tube kinking, method G7
Câbles à fibres optiques –
Partie 1-307: Spécification générique – Procédures fondamentales d’essai des
câbles optiques – Méthodes d’essai des éléments de câble – Pliure du tube,
méthode G7
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.180.10 ISBN 978-2-8327-0276-5
– 2 – IEC 60794-1-307:2025 © IEC 2025
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 General requirements. 6
5 Method G7: Tube kinking . 6
5.1 Object . 6
5.2 Method G7A . 7
5.2.1 Sample . 7
5.2.2 Apparatus . 7
5.2.3 Procedure . 8
5.2.4 Requirements . 8
5.2.5 Details to be specified . 8
5.2.6 Details to be reported . 8
5.3 Method G7B . 9
5.3.1 Object . 9
5.3.2 Sample . 9
5.3.3 Apparatus . 9
5.3.4 Procedure . 10
5.3.5 Requirements . 11
5.3.6 Details to be specified . 11
5.3.7 Details to be reported . 11
Bibliography . 12
Figure 1 – Tube kinking test set-up method G7A . 7
Figure 2 – Tube kinking test set-up method G7B . 10
Figure 3 – Schematic representation of tube movement during tube kinking test set-up
method G7B. 11
Table 1 – Recommended parameters for the tube kinking test . 8
IEC 60794-1-307:2025 © IEC 2025 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
OPTICAL FIBRE CABLES –
Part 1-307: Generic specification – Basic optical cable test procedures –
Cable element test methods – Tube kinking, method G7
FOREWORD
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