IEC 60794-1-217:2024

Optical fibre cables - Part 1-217: Generic specification - Basic optical cable test procedures - Environmental test methods - Cable shrinkage (fibre protrusion), Method F17

IEC 60794-1-217:2024 series defines the test procedure to measure the permanent fibre protrusion compared to the cable elements and cable sheath due to thermal exposure of a cable. This document partially replaces IEC 60794‑1‑22:2017. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to IEC 60794‑1‑22:2017:
a) added clarification in the objective that the purpose of this test procedure is to measure the permanent fibre protrusion of cables without rigid strength members;
b) replaced the reference to method F1 for the apparatus with a detailed description for the temperature chamber and temperature sensing device as done in IEC 60794-1-211;
c) added a measuring device in the subclause for apparatus;
d) added conditioning before cutting the cable sample as done in IEC 60794-1-211
e) added all required steps in the subclause for temperature cycling as well as the table for the minimum soak time and the figure for the cycle procedure, and removed the reference to IEC 60794-1-22, method F1;
f) improved the figures and added a figure for preparation of the cable sample;
g) added the informative Annex A for the test procedure recommended for cables with rigid strength members.

Câbles à fibres optiques - Partie 1-217: Spécification générique - Procédures fondamentales d’essais des câbles optiques - Méthodes d’essais d’environnement - Rétraction de câble (excroissance de la fibre), méthode F17

IEC 60794-1-217:2024 définit la procédure d’essai pour mesurer l’excroissance permanente de la fibre par rapport aux éléments de câble et à la gaine de câble, due à l’effet thermique d’un câble. Le présent document remplace partiellement l’IEC 60794-1-22:2017. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l’IEC 60794‑1-22:2017:
a) précision ajoutée dans l’objectif de cette procédure d’essai qui indique qu’elle vise à mesurer l’excroissance permanente de la fibre sans élément de renfort rigide;
b) remplacement de la référence à la méthode F1 pour l’appareillage par une description détaillée de l’enceinte thermostatique et du dispositif de détection de température, comme dans l’IEC 60794-1-211;
c) ajout d’un dispositif de mesure dans le paragraphe applicable à l’appareillage;
d) ajout du conditionnement avant de couper l’échantillon de câble, comme dans l’IEC 60794‑1-211
e) ajout de toutes les étapes exigées dans le paragraphe relatif au cycle de température, ainsi que de la durée d’exposition minimale et de la figure relative à la procédure de cycle, et suppression de la référence à l’IEC 60794-1-22, méthode F1;
f) amélioration des figures et ajout d’une figure pour la préparation de l’échantillon de câble;
g) ajout de l’Annexe A informative pour la procédure d’essai recommandée pour les câbles avec éléments de renfort rigides.

General Information

• Status: Published
• Publication Date: 02-Apr-2024
• ICS: 33.180.10 - Fibres and cables
• Technical Committee: SC 86A - Fibres and cables
• Current Stage: PPUB - Publication issued
• Start Date: 18-Apr-2024
• Completion Date: 03-Apr-2024

Relations

• Replaces: IEC 60794-1-22:2017 - Optical fibre cables - Part 1-22: Generic specification - Basic optical cable test procedures - Environmental test methods
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 60794-1-217 ®
Edition 1.0 2024-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Optical fibre cables –
Part 1-217: Generic specification – Basic optical cable test procedures –
Environmental test methods – Cable shrinkage (fibre protrusion), Method F17

Câbles à fibres optiques –
Partie 1-217: Spécification générique – Procédures fondamentales d’essais des
câbles optiques – Méthodes d’essais d’environnement – Rétraction de câble
(excroissance de la fibre), méthode F17
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IEC 60794-1-217 ®
Edition 1.0 2024-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Optical fibre cables –
Part 1-217: Generic specification – Basic optical cable test procedures –

Environmental test methods – Cable shrinkage (fibre protrusion), Method F17

Câbles à fibres optiques –
Partie 1-217: Spécification générique – Procédures fondamentales d’essais des

câbles optiques – Méthodes d’essais d’environnement – Rétraction de câble

(excroissance de la fibre), méthode F17

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.180.10  ISBN 978-2-8322-8545-9

– 2 – IEC 60794-1-217:2024 © IEC 2024
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Method F17 – Cable shrinkage (fibre protrusion) . 6
4.1 Objective . 6
4.2 Sample . 7
4.3 Apparatus . 7
4.4 Procedure . 7
4.4.1 Preparation of the cable sample . 7
4.4.2 Preparation of the cable ends . 8
4.4.3 Initial measurements . 9
4.4.4 Temperature cycling . 9
4.4.5 Final measurements . 11
4.5 Requirements . 11
4.6 Details to be specified . 11
4.7 Details to be reported . 12
Annex A (informative) Test procedure for cables with rigid strength members . 13
A.1 Objective . 13
A.2 Sample . 13
A.3 Apparatus . 13
A.4 Procedure . 13
A.4.1 Preparation of the cable sample . 13
A.4.2 Preparation of the cable ends . 13
A.4.3 Initial measurements . 14
A.4.4 Temperature cycling . 15
A.4.5 Final measurements . 15
A.5 Recommended requirements . 16
A.6 Details to be specified . 16
A.7 Details to be reported . 17
Bibliography . 18

Figure 1 – Preparation of cable sample with prepared ends . 8
Figure 2 – Preparation of cable sample ends . 8
Figure 3 – Fibre protrusion measurement . 9
Figure 4 – Cycle procedure . 10
Figure A.1 – Preparation of cable sample ends . 14
Figure A.2 – Fibre protrusion measurement . 15

Table 1 – Minimum soak time t . 10
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
OPTICAL FIBRE CABLES –
Part 1-217: Generic specification –
Basic optical cable test procedures – Environmental test methods –
Cable shrinkage (fibre protrusion), method F17

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