Optical fibre cables - Part 1-2: Generic specification - Basic optical cable test procedures - General guidance

IEC 60794-1-2:2021 is available as IEC 60794-1-2:2021 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 60794-1-2:2021 applies to optical fibre cables for use with telecommunications equipment and devices employing similar techniques, and to cables having a combination of both optical fibres and electrical conductors. An objective of this document is to define general requirements and methodology guidance applicable to all of the cable test methods of IEC 60794-1 (all parts). A second objective of this document is to provide the end user with an overview of the different test methods contained in the different parts of the IEC 60794-1 series. This fifth edition cancels and replaces the fourth edition published in 2017. This edition constitutes a technical revision. This edition includes the following significant technical change with respect to the previous edition:
- addition of cross-reference tables listing the new test method numbers and the previous test method numbers.

Câbles à fibres optiques - Partie 1-2: Spécification générique - Procédures fondamentales d'essais des câbles optiques - Recommandations générales

IEC 60794-1-2:2021 est disponible sous forme de IEC 60794-1-2:2021 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente .
L'IEC 60794-1-2:2021 s’applique aux câbles à fibres optiques destinés à être utilisés dans les équipements de télécommunications et les dispositifs utilisant des techniques analogues, ainsi qu'aux câbles constitués d'une combinaison de fibres optiques et de conducteurs électriques. L'un des objectifs de cette spécification est de définir des exigences générales et des recommandations méthodologiques applicables à toutes les méthodes d'essai des câbles de l'IEC 60794-1 (toutes les parties). Un second objectif du présent document est de fournir à l'utilisateur final une vue d'ensemble des différentes méthodes d’essai contenues dans les différentes parties de la série IEC 60794-1. Cette cinquième édition annule et remplace la quatrième édition parue en 2017. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
- ajout de tableaux de correspondances énonçant les nouveaux numéros de méthodes d'essai et les anciens numéros de méthodes d'essai.

General Information

Status
Published
Publication Date
14-Jan-2021
Technical Committee
Current Stage
PPUB - Publication issued
Start Date
19-Jan-2021
Completion Date
15-Jan-2021
Ref Project

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IEC 60794-1-2:2021 RLV - Optical fibre cables - Part 1-2: Generic specification - Basic optical cable test procedures - General guidance Released:1/15/2021 Isbn:9782832292914
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IEC 60794-1-2:2021 - Optical fibre cables - Part 1-2: Generic specification - Basic optical cable test procedures - General guidance
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IEC 60794-1-2 ®
Edition 5.0 2021-01
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Optical fibre cables –
Part 1-2: Generic specification – Basic optical cable test procedures – General
guidance
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

IEC Central Office Tel.: +41 22 919 02 11
3, rue de Varembé info@iec.ch
CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.

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need further assistance, please contact the Customer Service
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IEC 60794-1-2 ®
Edition 5.0 2021-01
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Optical fibre cables –
Part 1-2: Generic specification – Basic optical cable test procedures – General

guidance
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.180.10 ISBN 978-2-8322-9291-4

– 2 – IEC 60794-1-2:2021 RLV © IEC 2021
CONTENTS
FOREWORD . 3
INTRODUCTION . 2
1 Scope . 6
2 Normative references . 7
3 Terms and definitions . 7
4 General guidance . 7
4.1 Test procedure format . 7
4.2 Standard atmospheric conditions . 7
4.3 Symbols and abbreviated terms . 8
4.4 Safety and environmental aspects. 8
4.5 Calibration . 8
4.5.1 Calibration process . 8
4.5.2 Assessment of uncertainties . 8
4.6 Preconditioning . 9
4.7 Guide to qualification sampling . 9
4.8 Optical launch conditions . 9
4.9 Standard optical test wavelengths . 9
Annex A (informative) Cross-references between new and old test method numbers . 10
Bibliography . 16

Table 1 – Document overview . 6
Table 2 – Standard optical test wavelengths . 9
Table 3 – Alternative optical test wavelengths . 9
Table A.1 – IEC 60794-1-1xx series . 10
Table A.2 – IEC 60794-1-2xx series . 11
Table A.3 – IEC 60794-1-3xx series . 12
Table A.4 – IEC 60794-1-4xx series . 12
Table A.5 – IEC 60794-1-21 method numbers . 12
Table A.6 – IEC 60794-1-22 method numbers . 14
Table A.7 – IEC 60794-1-23 method numbers . 14
Table A.8 – IEC 60794-1-24 method numbers . 15

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
OPTICAL FIBRE CABLES –
Part 1-2: Generic specification –
Basic optical cable test procedures –
General guidance
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
Publicly Available Specifications (PAS) and Guides (hereafter referred to as "IEC Publication(s)"). Their
preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
may participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence between
any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent
rights. IEC shall not be held responsible for identifying any or all such patent rights.

This redline version of the official IEC Standard allows the user to identify the changes made to
the previous edition IEC 60794-1-2:2017. A vertical bar appears in the margin wherever a change
has been made. Additions are in green text, deletions are in strikethrough red text.

– 4 – IEC 60794-1-2:2021 RLV © IEC 2021
International Standard IEC 60794-1-2 has been prepared by subcommittee 86A: Fibres and
cables, of IEC technical committee 86: Fibre optics.
This fifth edition cancels and replaces the fourth edition published in 2017. This edition
constitutes an technical revision.
This edition includes the following significant technical change with respect to the previous
edition:
a) addition of cross-reference tables listing the new test method numbers and the previous test
method numbers.
The text of this International Standard is based on the following documents:
CDV Report on voting
86A/2009/CDV 86A/2057/RVC
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 International Standard is to be used in conjunction with IEC 60794-1-1.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
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
stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data related to
the specific publication. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates that it
contains colours which are considered to be useful for the correct understanding of its
contents. Users should therefore print this document using a colour printer.

INTRODUCTION
IEC 60794-1-2:2013 comprised a detailed cross-reference table to the new document set, and
general guidance was given in IEC 60794-1-20. These two specifications have been combined
in this document, which allows for IEC 60794-1-20 to be withdrawn.
A decision has been reached to reorganize the IEC 60794-1-2 set of test methods into single-
subject documents. This will be a migration as the existing test methods are revised and as new
test methods are promulgated, rather than a wholesale rewrite. Part of this migration is a
decision to maintain the traditional letter-number classification and to use a numbering system
which maintains connection to the existing numbering system.
The new test method numbering format has been agreed, in line with IEC Secretariat guidelines,
to help the cross-referencing from old to new and that will make the updating of the relevant
sectional and product specifications easier. Cross-reference tables listing the new test method
numbers and the previous test method numbers have been included (see Annex A, Table A.1
to Table A.8).
The format agreed is as follows:
IEC 60794-1-Xnn
where
nd
X = 2 digit of the old 2-digit reference;
nn = incremental number (starting with old test method number).
For example:
IEC 60794-1-21 method E1 (tensile) becomes IEC 60794-1-101;
IEC 60794-1-22 method F5 (water penetration) becomes IEC 60794-1-205;
IEC 60794-1-23 method G7 (tube kinking) becomes IEC 60794-1-307;
IEC 60794-1-24 method H2 (lightning) becomes IEC 60794-1-402.
Annex A has been added to this document containing a cross-reference between the old and
new number scheme.
– 6 – IEC 60794-1-2:2021 RLV © IEC 2021
OPTICAL FIBRE CABLES –
Part 1-2: Generic specification –
Basic optical cable test procedures –
General guidance
1 Scope
This part of IEC 60794-1 applies to optical fibre cables for use with telecommunications
equipment and devices employing similar techniques, and to cables having a combination of
both optical fibres and electrical conductors.
The prime objective of this document is to provide the end user with an overview about the
c
...


IEC 60794-1-2 ®
Edition 5.0 2021-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Optical fibre cables –
Part 1-2: Generic specification – Basic optical cable test procedures – General
guidance
Câbles à fibres optiques –
Partie 1-2: Spécification générique – Procédures fondamentales d'essais des
câbles optiques – Recommandations générales

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

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utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie et
les microfilms, sans l'accord écrit de l'IEC ou du Comité national de l'IEC du pays du demandeur. Si vous avez des
questions sur le copyright de l'IEC ou si vous désirez obtenir des droits supplémentaires sur cette publication, utilisez
les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.

IEC Central Office Tel.: +41 22 919 02 11
3, rue de Varembé info@iec.ch
CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.

IEC publications search - webstore.iec.ch/advsearchform IEC online collection - oc.iec.ch
The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the
variety of criteria (reference number, text, technical publications previews. With a subscription you will always have
committee, …). It also gives information on projects, replaced access to up to date content tailored to your needs.
and withdrawn publications.
Electropedia - www.electropedia.org
IEC Just Published - webstore.iec.ch/justpublished
The world's leading online dictionary on electrotechnology,
Stay up to date on all new IEC publications. Just Published
containing more than 22 000 terminological entries in English
details all new publications released. Available online and once
and French, with equivalent terms in 18 additional languages.
a month by email.
Also known as the International Electrotechnical Vocabulary

(IEV) online.
IEC Customer Service Centre - webstore.iec.ch/csc
If you wish to give us your feedback on this publication or need
further assistance, please contact the Customer Service
Centre: sales@iec.ch.
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IEC 60794-1-2 ®
Edition 5.0 2021-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Optical fibre cables –
Part 1-2: Generic specification – Basic optical cable test procedures – General

guidance
Câbles à fibres optiques –
Partie 1-2: Spécification générique – Procédures fondamentales d'essais des

câbles optiques – Recommandations générales

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.180.10 ISBN 978-2-8322-9248-8

– 2 – IEC 60794-1-2:2021 © IEC 2021
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 7
3 Terms and definitions . 7
4 General guidance . 7
4.1 Test procedure format . 7
4.2 Standard atmospheric conditions . 7
4.3 Symbols and abbreviated terms . 8
4.4 Safety and environmental aspects. 8
4.5 Calibration . 8
4.5.1 Calibration process . 8
4.5.2 Assessment of uncertainties . 8
4.6 Preconditioning . 9
4.7 Guide to qualification sampling . 9
4.8 Optical launch conditions . 9
4.9 Standard optical test wavelengths . 9
Annex A (informative) Cross-references between new and old test method numbers . 10
Bibliography . 16

Table 1 – Document overview . 6
Table 2 – Standard optical test wavelengths . 9
Table 3 – Alternative optical test wavelengths . 9
Table A.1 – IEC 60794-1-1xx series . 10
Table A.2 – IEC 60794-1-2xx series . 11
Table A.3 – IEC 60794-1-3xx series . 12
Table A.4 – IEC 60794-1-4xx series . 12
Table A.5 – IEC 60794-1-21 method numbers . 12
Table A.6 – IEC 60794-1-22 method numbers . 14
Table A.7 – IEC 60794-1-23 method numbers . 14
Table A.8 – IEC 60794-1-24 method numbers . 15

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
OPTICAL FIBRE CABLES –
Part 1-2: Generic specification –
Basic optical cable test procedures –
General guidance
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
Publicly Available Specifications (PAS) and Guides (hereafter referred to as "IEC Publication(s)"). Their
preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
may participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence between
any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent
rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 60794-1-2 has been prepared by subcommittee 86A: Fibres and
cables, of IEC technical committee 86: Fibre optics.
This fifth edition cancels and replaces the fourth edition published in 2017. This edition
constitutes an technical revision.
This edition includes the following significant technical change with respect to the previous
edition:
a) addition of cross-reference tables listing the new test method numbers and the previous test
method numbers.
– 4 – IEC 60794-1-2:2021 © IEC 2021
The text of this International Standard is based on the following documents:
CDV Report on voting
86A/2009/CDV 86A/2057/RVC
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 International Standard is to be used in conjunction with IEC 60794-1-1.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
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
stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data related to
the specific publication. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
...

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