EN IEC 60793-1-22:2024

SLOVENSKI STANDARD
01-oktober-2024
Optična vlakna - 1-22. del: Merilne metode in postopki preskušanja - Merjenje
dolžine (IEC 60793-1-22:2024)
Optical fibres - Part 1-22: Measurement methods and test procedures - Length
measurement (IEC 60793-1-22:2024)
Lichtwellenleiter - Teil 1-22: Messmethoden und Prüfverfahren - Längenmessung (IEC
60793-1-22:2024)
Fibres optiques - Partie 1-22: Méthodes de mesure et procédures d'essai - Mesure de la
longueur (IEC 60793-1-22:2024)
Ta slovenski standard je istoveten z: EN IEC 60793-1-22:2024
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 60793-1-22

NORME EUROPÉENNE
EUROPÄISCHE NORM August 2024
ICS 33.180.10 Supersedes EN 60793-1-22:2002
English Version
Optical fibres - Part 1-22: Measurement methods and test
procedures - Length measurement
(IEC 60793-1-22:2024)
Fibres optiques - Partie 1-22: Méthodes de mesure et Lichtwellenleiter - Teil 1-22: Messmethoden und
procédures d'essai - Mesure de la longueur Prüfverfahren - Längenmessung
(IEC 60793-1-22:2024) (IEC 60793-1-22:2024)
This European Standard was approved by CENELEC on 2024-08-01. 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
© 2024 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 60793-1-22:2024 E

European foreword
The text of document 86A/2456/FDIS, future edition 2 of IEC 60793-1-22, 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 60793-1-22:2024.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2025-05-01
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2027-08-01
document have to be withdrawn
This document supersedes EN 60793-1-22:2002 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 60793-1-22:2024 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 60794-1-1 NOTE Approved as EN IEC 60794-1-1
IEC 61757-1-2 NOTE Approved as EN IEC 61757-1-2
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 60793-1-40 - Optical fibres - Part 1-40: Attenuation EN IEC 60793-1-40 -
measurement methods
IEC 60793-1-42 - Optical fibres - Part 1-42: Measurement EN 60793-1-42 -
methods and test procedures - Chromatic
dispersion
IEC 60793-1-22 ®
Edition 2.0 2024-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Optical fibres –
Part 1-22: Measurement methods and test procedures – Length measurement
Fibres optiques –
Partie 1-22: Méthodes de mesure et procédures d'essai – Mesure de la longueur
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.180.10 ISBN 978-2-8322-9195-5
– 2 – IEC 60793-1-22:2024 © IEC 2024
CONTENTS
FOREWORD . 5
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 8
3 Terms, definitions, and abbreviated terms . 8
3.1 Terms and definitions . 8
3.2 Abbreviated terms . 8
4 Overview of method . 9
4.1 General . 9
4.2 Method A – Delay measuring . 9
4.3 Method B – Backscattering . 9
4.4 Method C – Fibre elongation . 9
4.5 Method D – Mechanical length . 9
4.6 Method E – Phase shift . 10
4.7 Reference test method . 10
5 Apparatus . 10
6 Sampling . 10
7 Procedure . 10
8 Calculations . 10
9 Results . 10
10 Specification information . 11
Annex A (normative) Requirements specific to method A – Delay measuring . 12
A.1 General . 12
A.2 Principle . 12
A.3 Apparatus . 12
A.3.1 Two techniques . 12
A.3.2 Optical source . 13
A.3.3 Optical detector . 14
A.4 Procedure . 14
A.4.1 Calibration . 14
A.4.2 Average group index value . 14
A.4.3 Length measurement . 14
A.5 Calculations . 15
A.5.1 General . 15
A.5.2 Transmitted-pulse technique . 15
A.5.3 Reflected-pulse technique . 16
A.6 Results . 16
Annex B (normative) Requirements specific to method B – Backscattering . 17
B.1 General . 17
B.2 Apparatus . 17
B.2.1 General . 17
B.2.2 Optical transmitter . 17
B.2.3 Launch conditions . 18
B.2.4 Optical coupler or splitter . 18
B.2.5 Optical receiver . 18

IEC 60793-1-22:2024 © IEC 2024 – 3 –
B.2.6 Pulse duration and repetition rate . 18
B.2.7 Signal processor . 18
B.2.8 Display . 18
B.2.9 Data interface (optional) . 18
B.2.10 Reflection controller (optional) . 18
B.2.11 Splices and connectors . 19
B.3 Sampling. 19
B.4 Procedure . 19
B.4.1 Three techniques . 19
B.4.2 Procedure common to all three techniques . 19
B.4.3 Procedures specific to each technique . 20
B.4.4 Determination of group index . 22
B.5 Results . 23
Annex C (normative) Requirements specific to method C – Fibre elongation . 24
C.1 Principle . 24
C.2 Apparatus . 24
C.2.1 General requirements . 24
C.2.2 Optical measurement equipment . 25
C.2.3 Instrument resolution . 25
C.3 Procedure . 26
C.3.1 Calibration . 26
C.3.2 Sample measurement . 26
C.4 Results .
...