IEC 60794-1-215:2020

Optical fibre cables – Part 1-215: Generic specification – Basic optical cable test procedures – Environmental test methods – Cable external freezing test, Method F15

IEC 60794-1-215:2020 defines test procedures to be used in establishing uniform requirements for the environmental performance of
- optical fibre cables for use with 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 a cable to withstand the effects of freezing water that can immediately surround the optical fibre cable sheath by observing any changes in the physical appearance of the sheath, or in the measured cable optical attenuation. Method F15A is a test standard to simulate freezing of the medium surrounding a buried cable, as in wet earth or water. Method F15A is moved from method F15 in IEC 60794-1-22:2017 without any technical changes. Method F15B is a test standard to simulate freezing of the medium surrounding an outside cable in a rigid conduit (duct) which is made of rigid material, for example steel. Method F15B includes the solution to prevent the cable from being crushed when experiencing freezing conditions in a rigid conduit (duct) which are pressure absorber pads and any other suggested means of cable protection. A reference guide to test methods of all types as well as general requirements can be found in IEC 60794-1-2.

Câbles à fibres optiques - Partie 1-215: Spécification générique - Procédures fondamentales d'essais des câbles optiques - Méthodes d’essais d’environnement - Essai de résistance au gel en extérieur des câbles, méthode F15

IEC 60794-1-215:2020 définit les procédures d’essai à utiliser pour définir des exigences harmonisées pour les performances environnementales:
- des câbles à fibres optiques destinés à être utilisés avec les équipements et dispositifs de télécommunications employant des techniques similaires; et
- des câbles combinant fibres optiques et conducteurs électriques.
Dans le présent document, le terme « câble optique » peut également englober les unités de fibres optiques, les unités de fibres en microconduit, etc. Le présent document définit une norme d’essai pour déterminer la capacité d’un câble à résister aux effets de l’eau gelée pouvant se situer au voisinage immédiat de la gaine d’un câble à fibres optiques, en observant les quelconques variations d’aspect physique de la gaine, ou les quelconques variations de l’affaiblissement mesuré sur le câble. La méthode F15A est une norme d’essai pour simuler le gel du milieu entourant un câble enfoui, par exemple de la terre humide ou de l’eau. La méthode F15A est déplacée de la méthode F15 de l’IEC 60794-1-22:2017 sans aucune modification technique. La méthode F15B est une norme d’essai pour simuler le gel du milieu entourant un câble extérieur dans un conduit (gaine) rigide fabriqué dans un matériau rigide, par exemple l’acier. La méthode F15B inclut la solution qui évite l’écrasement du câble lorsqu’il est soumis à des conditions de gel dans un conduit (gaine) rigide, qui consiste en des tampons d’absorption de la pression et les quelconques autres moyens de protection du câble suggérés. Un guide de référence répertoriant les méthodes d’essai de tous types, ainsi que les exigences générales, peut être consulté dans l’IEC 60794-1-2.

General Information

• Status: Published
• Publication Date: 25-Jun-2020
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 33.180.10 - Fibres and cables
• Technical Committee: SC 86A - Fibres and cables
• Current Stage: PPUB - Publication issued
• Start Date: 31-Jul-2020
• Completion Date: 26-Jun-2020

Standards Content (Sample)

IEC 60794-1-215 ®
Edition 1.0 2020-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Optical fibre cables –
Part 1-215: Generic specification – Basic optical cable test procedures –
Environmental test methods – Cable external freezing test, Method F15

Câbles à fibres optiques –
Partie 1-215: Spécification générique – Procédures fondamentales d’essais des
câbles optiques – Méthodes d’essais d’environnement – Essai de résistance au
gel en extérieur des câbles, méthode F15

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IEC 60794-1-215 ®
Edition 1.0 2020-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Optical fibre cables –
Part 1-215: Generic specification – Basic optical cable test procedures –

Environmental test methods – Cable external freezing test, Method F15

Câbles à fibres optiques –
Partie 1-215: Spécification générique – Procédures fondamentales d’essais des

câbles optiques – Méthodes d’essais d’environnement – Essai de résistance au

gel en extérieur des câbles, méthode F15

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.180.10 ISBN 978-2-8322-8570-1

– 2 – IEC 60794-1-215:2020 © IEC 2020
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 Method F15A – Cable external freezing test for a buried cable as in wet earth or
water . 7
4.1 Object . 7
4.2 Sample . 7
4.3 Apparatus . 7
4.4 Procedure . 8
4.5 Requirements . 8
4.6 Details to be specified . 8
5 Method F15B – Cable external freezing test in a rigid conduit (duct) . 8
5.1 Object . 8
5.2 Sample . 8
5.3 Apparatus . 9
5.4 Procedure . 9
5.5 Requirements . 10
5.6 Details to be specified . 10
Annex A (informative) Example of freezing pressure absorber elements . 11
Bibliography . 13

Figure 1 – Example of F15B apparatus of cable external freezing test in a rigid conduit . 9
Figure A.1 – Example of freezing pressure absorber elements . 11
Figure A.2 – Cross section of the rigid conduit with an optical cable and freezing
pressure absorber elements when the water freezing . 12

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
OPTICAL FIBRE CABLES –
Part 1-215: Generic specification –
Basic optical cable test procedures –
Environmental test methods –
Cable external freezing test, Method F15

FOREWORD
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International Standard IEC 60794-1-215 has been prepared by subcommittee 86A: Fibres and
cables, of IEC technical committee 86: Fibre optics.
The text of this International Standard is based on the following documents:
FDIS Report on voting
86A/2008/FDIS 86A/2026/RVD
Full information on the voting for the approval of this International Standard can be found in the
report on voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.

– 4 – IEC 60794-1-215:2020 © IEC 2020
A list of all parts in the IEC 60794 series, published under the general title Optical fibre cables,
can be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
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INTRODUCTION
This part of IEC 60794 defines a test method to determine the ability of a cable to withstand the
effects of freezing water that can immediately surround the
...