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IEC 60794-1-211
Edition 1.0 2021-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Optical fibre cables –
Part 1-211: Generic specification – Basic optical cable test procedures –
Environmental test methods – Sheath shrinkage, method F11
Câbles à fibres optiques –
Partie 1-211: Spécification générique – Procédures fondamentales d’essais des
câbles optiques – Méthodes d’essais d’environnement – Rétraction de la gaine,
méthode F11
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IEC 60794-1-211
Edition 1.0 2021-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Optical fibre cables –
Part 1-211: Generic specification – Basic optical cable test procedures –
Environmental test methods – Sheath shrinkage, method F11
Câbles à fibres optiques –
Partie 1-211: Spécification générique – Procédures fondamentales d’essais des
câbles optiques – Méthodes d’essais d’environnement – Rétraction de la gaine,
méthode F11
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.180.10 ISBN 978-2-8322-9467-3
– 2 – IEC 60794-1-211:2021 © IEC 2021
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Method F11A – Sheath shrinkage (cables to be terminated with connectors) . 6
4.1 Objective . 6
4.2 Sample . 7
4.3 Apparatus . 7
4.4 Procedure . 7
4.5 Requirements . 8
4.6 Details to be specified . 9
4.7 Details to be reported . 9
5 Method F11B – Sheath shrinkage (general purpose) . 9
5.1 Objective . 9
5.2 Sample . 9
5.3 Apparatus . 9
5.4 Procedure . 9
5.5 Requirements . 10
5.6 Details to be specified . 10
5.7 Details to be reported . 10
Annex A (informative) Comparison between method F11A and method F11B . 11
Bibliography . 12
Figure 1 – Cable sample preparation . 7
Figure 2 – Alternative cable sample preparation (cut ends) . 8
Table A.1 – Comparison between method F11A and method F11B . 11
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
OPTICAL FIBRE CABLES –
Part 1-211: Generic specification –
Basic optical cable test procedures –
Environmental test methods – Sheath shrinkage, method F11
FOREWORD
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IEC 60794-1-211 has been prepared by subcommittee 86A: Fibres and cables, of IEC technical
committee 86: Fibre optics. It is an International Standard.
This document cancels and 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) method F11 (cables intended for patch cords) of IEC 60794-1-22:2017 was renumbered
F11A and renamed as "sheath shrinkage (cables to be terminated with connectors)";
b) a second method F11B is newly included that was adapted from ANSI/TIA-455-86-A;
c) in method F11A, the thermal exposure from ambient to the specified temperature was
replaced by temperature cycling between a low and high temperature according to
IEC 60794-1-22, method F1;
– 4 – IEC 60794-1-211:2021 © IEC 2021
d) in method F11A, the continuing of the test cycles until the shrinkage exhibits a variation less
than ±1 mm was replaced with a fixed number of cycles specified by the detail specification;
e) in method F11A, the average was changed to maximum sheath shrinkage that shall not
exceed the value specified in the relevant detail specification;
f) in both methods, the alternative that the sample may be cut to length and the length between
the cut sheath ends measured is added.
The text of this International Standard is based on the following documents:
Draft Report on voting
86A/2074/FDIS 86A/2087/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 d
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