EN 60793-1-50:2015

Optical fibres - Part 1-50: Measurement methods and test procedures - Damp heat (steady state) tests

IEC 60793-1-50:2014 provides a practical method for evaluating fibre performance in a defined environment. The purpose of this standard is to determine the suitability of optical fibre sub-category A1a to A1d multimode fibres and class B and C single-mode fibres to withstand the environmental condition of high humidity and high temperature which may occur in actual use, storage and/or transport. The test is primarily intended to permit the observation of effects of high humidity at constant temperature over a given period. This procedure is conducted in accordance with IEC 60068-2-78, Test Cab. This second edition cancels and replaces the first edition, published in 2001, and constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - harmonization of the content with sectional specifications of relevant fibre types; - extension of the applicability of the standard to class C single-mode fibres. Keywords: evaluating fibre performance, sub-category A1a to A1d multimode fibres, class B and C single-mode fibres, high humidity and high temperature

Lichtwellenleiter - Teil 1-50: Messmethoden und Prüfverfahren - Feuchte Wärme (konstant)

Fibres optiques - Partie 1-50: Méthodes de mesure et procédures d'essai - Essais de chaleur humide (état continu)

L'IEC 60793-1-50:2014 présente une méthode pratique pour l'évaluation des performances des fibres dans un environnement défini. L'objet de la présente norme est de déterminer l'aptitude des fibres optiques multimodales de sous-catégories A1a à A1d et des fibres optiques unimodales de classes B et C à résister aux conditions d'environnement présentant une forte humidité et une température élevée, susceptibles de survenir en utilisation réelle, pendant le stockage et/ou le transport. L'essai est essentiellement destiné à permettre l'observation des effets d'une forte humidité à température constante pendant une période donnée. Cette procédure est appliquée conformément à l'IEC 60068-2-78, Essai Cab. Cette deuxième édition annule et remplace la première édition, publiée en 2001, dont elle constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: - l'harmonisation du contenu avec les spécifications intermédiaires concernant les types de fibres correspondants; - l'extension de l'applicabilité du document aux fibres unimodales de classe C. Mots clés: évaluation des performances des fibres, multimodales de sous-catégories catégories A1a à A1d, des fibres optiques unimodales de classes B et C, humidité et une température élevée

Optična vlakna - 1-50. del: Metode merjenja - Preskusi vlažne toplote (ustaljeno stanje) (IEC 60793-1-50:2014)

Ta del standarda IEC 60793 zagotavlja praktično metodo za ocenjevanje delovanja vlaken v nadzorovanem okolju.
Cilj tega standarda je določiti ustreznost podkategorij večrodovnih optičnih vlaken A1a do A1d in enorodnih optičnih vlaken razredov B in C pri prenašanju okoljskih pogojev, kot sta visoka vlažnost in visoka temperatura, ki se lahko pojavita pri dejanski uporabi, shranjevanju in/ali prevozu. Preskus je prvenstveno namenjen omogočanju opazovanja učinkov visoke vlage pri stalni temperaturi v določenem časovnem območju. Ta postopek se izvaja v skladu s preskusom Cab iz standarda IEC 60068-2-78.
OPOMBA: Uporabnost tega preskusa za druge kategorije vlaken se še vedno preučuje.

General Information

• Status: Published
• Publication Date: 08-Jan-2015
• Withdrawal Date: 13-Oct-2017
• ICS: 33.180.10 - Fibres and cables
• Technical Committee: CLC/TC 86A - Optical fibres and optical fibre cables
• Drafting Committee: IEC/SC 86A - IEC_SC_86A
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 09-Jan-2015
• Completion Date: 09-Jan-2015
• Ref Project: SIST EN 60793-1-50:2015 - Optical fibres - Part 1-50: Measurement methods - Damp heat (steady state) tests (IEC 60793-1-50:2014)

Relations

• Replaces: EN 60793-1-50:2002 - Optical fibres - Part 1-50: Measurement methods and test procedures - Damp heat (steady state)
• Effective Date: 28-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
01-oktober-2015
1DGRPHãþD
SIST EN 60793-1-50:2004
2SWLþQDYODNQDGHO0HWRGHPHUMHQMD3UHVNXVLYODåQHWRSORWHXVWDOMHQR
VWDQMH,(&
Optical fibres - Part 1-50: Measurement methods - Damp heat (steady state) tests (IEC
60793-1-50:2014)
Lichtwellenleiter - Teil 1-50: Messmethoden und Prüfverfahren - Feuchte Wärme
(konstant) (IEC 60793-1-50:2014)
Fibres optiques - Partie 1-50: Méthodes de mesure - Essais de chaleur humide (état
continu) (IEC 60793-1-50:2014)
Ta slovenski standard je istoveten z: EN 60793-1-50:2015
ICS:
33.180.10 2SWLþQDYODNQDLQNDEOL Fibres and cables
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 60793-1-50

NORME EUROPÉENNE
EUROPÄISCHE NORM
January 2015
ICS 33.180.10 Supersedes EN 60793-1-50:2002
English Version
Optical fibres - Part 1-50: Measurement methods - Damp heat
(steady state) tests
(IEC 60793-1-50:2014)
Fibres optiques - Partie 1-50: Méthodes de mesure - Essais Lichtwellenleiter - Teil 1-50: Messmethoden und
de chaleur humide (état continu) Prüfverfahren - Feuchte Wärme (konstant)
(IEC 60793-1-50:2014) (IEC 60793-1-50:2014)
This European Standard was approved by CENELEC on 2014-10-14. 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2015 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 60793-1-50:2015 E
Foreword
The text of document 86A/1526/CDV, future edition 2 of IEC 60793-1-50, 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 60793-1-50:2015.

The following dates are fixed:
(dop) 2015-07-14
• latest date by which the document has to be
implemented at national level by
publication of an identical national
standard or by endorsement
(dow) 2017-10-14
• latest date by which the national
standards conflicting with the
document have to be withdrawn
This document supersedes EN 60793-1-50:2002.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such
patent rights.
Endorsement notice
The text of the International Standard IEC 60793-1-50:2014 was approved by CENELEC as a
European Standard without any modification.

- 3 - EN 60793-1-50:2015
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
NOTE 1 When 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.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60068-2-78 -  Environmental testing -- Part 2-78: Tests - EN 60068-2-78 -
Test Cab: Damp heat, steady state
IEC 60793-1-31 -  Optical fibres -- Part 1-31: Measurement EN 60793-1-31 -
methods and test procedures - Tensile
strength
IEC 60793-1-32 -  Optical fibres -- Part 1-32: Measurement EN 60793-1-32 -
methods and test procedures - Coating
strippability
IEC 60793-1-33 -  Optical fibres -- Part 1-33: Measurement EN 60793-1-33 -
methods and test procedures - Stress
corrosion susceptibility
IEC 60793-1-40 2001 Optical fibres -- Part 1-40: Measurement EN 60793-1-40 2003
(mod) methods and test procedures - Attenuation
+AA
IEC 60793-2-10 -  Optical fibres -- Part 2-10: Product EN 60793-2-10 -
specifications - Sectional specification for
category A1 multimode fibres
IEC 60793-2-50 -  Optical fibres -- Part 2-50: Product EN 60793-2-50 -
specifications - Sectional specification for
class B single-mode fibres
IEC 60793-2-60 -  Optical fibres -- Part 2-60: Product EN 60793-2-60 -
specifications - Sectional specification for
category C single-mode intraconnection
fibres
IEC 60793-1-50 ®
Edition 2.0 2014-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Optical fibres –
Part 1-50: Measurement methods and test procedures – Damp heat (steady

state) tests
Fibres optiques –
Partie 1-50: Méthodes de mesure et procédures d'essai – Essais de chaleur

humide (état continu)
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX H
ICS 33.180.10 ISBN 978-2-8322-1853-2

– 2 – IEC 60793-1-50:2014  IEC 2014
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Apparatus . 6
3.1 Chamber . 6
3.2 Humidifier . 6
3.3 Other apparatus . 6
4 Sampling and specimens . 6
5 Procedure . 6
5.1 General . 6
5.2 Optical measurements . 6
5.3 Mechanical measurements . 7
5.4 Preconditioning . 7
5.5 Conditioning . 7
5.6 Recovery . 7
6 Pass/fail criteria . 7
7 Results . 7
7.1 Information to be provided with each test . 7
7.2 Information to be available upon request . 8
8 Specification information . 8

IEC 60793-1-50:2014  IEC 2014 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
OPTICAL FIBRES –
Part 1-50: Measurement methods and test procedures –
Damp heat (steady state) tests

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
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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 60793-1-50 has been prepared by subcommittee 86A: Fibres and
cables, of IEC technical committee 86: Fibre optics.
This second edition cancels and replaces the first edition, published in 2001, and constitutes
a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
– harmonization of the content with sectional specifications of relevant fibre types;
– extension of the applicability of the standard to class C single-mode fibres.

– 4 – IEC 60793-1-50:2014  IEC 2014
The text of this standard is based on the following documents:
CDV Report on voting
86A/1526/CDV 86A/1572/RVC
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts in the IEC 60793 series, published under the general title Optical fibres, can
be found on the IEC website.
The committee has decided that the contents of this publication 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 publication 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 consider
...