IEC 61300-2-47:2016

Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 2-47: Tests - Thermal shocks

IEC 61300-2-47:2016 details a procedure for determining the suitability of a fibre optic device to withstand the effects of thermal shock. In practice, this means a very short change over time between extreme temperatures. This fourth edition cancels and replaces the third edition published in 2010. This edition constitutes a technical revision. This edition includes the following significant technical change with respect to the previous edition: review of temperature limit in the test severity. Keywords: thermal shock, extreme temperatures

Dispositifs d'interconnexion et composants passifs fibroniques - Procédures fondamentales d'essais et de mesures - Partie 2-47: Essais - Chocs thermiques

L'IEC 61300-2-47:2016 détaille une procédure destinée à déterminer l'aptitude d'un dispositif fibronique à résister aux effets des chocs thermiques. En pratique, cela correspond à un temps de passage très court entre des températures extrêmes. Cette quatrième édition annule et remplace la troisième édition parue en 2010. Elle constitue une révision technique. La présente édition inclut la modification technique majeure suivante par rapport à l'édition précédente: révision de la limite de température de la sévérité d'essai. Mots clés: chocs thermiques, températures extrêmes

General Information

• Status: Published
• Publication Date: 18-May-2016
• ICS: 33.180.20 - Fibre optic interconnecting devices
• Technical Committee: SC 86B - Fibre optic interconnecting devices and passive components
• Drafting Committee: WG 4 - TC 86/SC 86B/WG 4
• Current Stage: PPUB - Publication issued
• Start Date: 19-May-2016
• Completion Date: 15-Aug-2016

Relations

• Revises: IEC 61300-2-47:2010/COR1:2011 - Corrigendum 1 - Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 2-47: Tests - Thermal shocks
• Effective Date: 05-Sep-2023
• Revises: IEC 61300-2-47:2010 - Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 2-47: Tests - Thermal shocks
• Effective Date: 05-Sep-2023

Overview

IEC 61300-2-47:2016 is an international standard published by the International Electrotechnical Commission (IEC) that specifies a test method for evaluating the resistance of fibre optic interconnecting devices and passive components to thermal shock. Thermal shock testing assesses the capability of these fibre optic devices to withstand rapid and extreme temperature changes, representing very short transition times between high and low temperatures. This fourth edition updates the 2010 edition with a revised temperature limit for test severity, ensuring that devices meet more rigorous performance criteria under thermal stress conditions.

This standard is crucial for manufacturers and testers in the fibre optics industry who need to guarantee product reliability and longevity under harsh environmental conditions, such as sudden temperature fluctuations encountered in field deployment.

Key Topics

• Scope and Purpose: Defines a procedure to verify the suitability of fibre optic devices to endure thermal shock, i.e., rapid temperature changes between extremes.

• Test Procedure:

  • Utilizes specialized climatic chambers to subject the Device Under Test (DUT) to cycles of low and high temperature conditions.
  • The test involves placing the DUT in a cold chamber for a prescribed duration, followed by rapid transfer (within 3 minutes) to a hot chamber.
  • The temperature transition simulates real-world thermal shock events, helping identify any performance degradation or physical damage.

• Apparatus Requirements:

  • Testing chambers must maintain precise atmosphere temperature and humidity levels with air velocity not less than 2 m/s.
  • Chambers can be a single rapid-change unit or two separate chambers for cold and hot phases.
  • DUT mounting supports should minimize thermal conduction, effectively isolating the device thermally during testing.

• Measurement and Examination:

  • Preconditioning the DUT at standard atmospheric conditions for no less than 2 hours is required.
  • Initial, intermediate (during test), and final examinations evaluate mechanical and optical properties.
  • Optical cable arrangement ensures that cable movement during transfer does not affect test accuracy. Control cables may be used for monitoring.

• Test Severity:

  • Temperature limits and exposure times are strictly defined.
  • Changes include review and adjustment of temperature limits to reflect more stringent testing requirements.

• Standards Compliance:

  • The test methodology references and complies with related IEC standards such as IEC 60068-2-14 (Environmental testing – Test N: Change of temperature) and IEC 61300-3-1 (Visual examination and measurements).

Applications

The IEC 61300-2-47:2016 thermal shock test standard is widely applied in:

• Fibre Optic Component Manufacturing: Ensures components such as connectors, adapters, and passive interconnecting devices maintain integrity after rapid temperature fluctuations.
• Quality Assurance and Certification: Used by testing laboratories and certification bodies to verify product compliance with international standards.
• Reliability Engineering: Helps assess the durability and operational lifespan of fibre optic devices in demanding environments such as telecommunications networks, data centers, aerospace, and outdoor installations.
• Product Development: Guides design improvements by identifying vulnerabilities related to thermal shock during prototype and pre-production phases.

By applying this test, stakeholders can reduce risk of failure, ensure consistent optical performance, and enhance customer confidence in fibre optic products.

Related Standards

• IEC 60068-2-14: Environmental Testing – Changes of Temperature
  Provides the general test framework and parameters referenced by IEC 61300-2-47 for conducting temperature change tests on electronic devices.

• IEC 61300-3-1: Basic Test and Measurement Procedures – Visual Examination
  Covers visual inspection methods that complement thermal shock tests to detect mechanical defects and surface anomalies.

• IEC 61300 Series: Fibre Optic Interconnecting Devices and Passive Components – Basic Test and Measurement Procedures
  A complete library of test standards addressing various environmental and mechanical conditions applicable to fibre optic devices.

• ISO/IEC Directives, Part 2
  Guidance on the preparation and drafting of international standards ensuring consistency and clarity across technical documentation.

---

Keywords: IEC 61300-2-47, thermal shock test, fibre optic devices, passive components, temperature cycling, thermal stress, fibre optic interconnectors, environmental testing, IEC standards, optical component reliability.

Standards Content (Sample)

IEC 61300-2-47 ®
Edition 4.0 2016-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures –
Part 2-47: Tests – Thermal shocks

Dispositifs d'interconnexion et composants passifs fibroniques – Procédures
fondamentales d'essais et de mesures –
Partie 2-47: Essais – Chocs thermiques
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.

Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite
ni 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.: [phone]
3, rue de Varembé Fax: [phone]
CH-1211 Geneva 20 [e-mail]
Switzerland www.iec.ch
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 corrigenda or an amendment might have been published.

IEC Catalogue - webstore.iec.ch/catalogue Electropedia - www.electropedia.org
The stand-alone application for consulting the entire The world's leading online dictionary of electronic and
bibliographical information on IEC International Standards, electrical terms containing 20 000 terms and definitions in
Technical Specifications, Technical Reports and other English and French, with equivalent terms in 15 additional
documents. Available for PC, Mac OS, Android Tablets and languages. Also known as the International Electrotechnical
iPad. Vocabulary (IEV) online.

IEC publications search - www.iec.ch/searchpub IEC Glossary - std.iec.ch/glossary
The advanced search enables to find IEC publications by a 65 000 electrotechnical terminology entries in English and
variety of criteria (reference number, text, technical French extracted from the Terms and Definitions clause of
committee,…). It also gives information on projects, replaced IEC publications issued since 2002. Some entries have been
and withdrawn publications. collected from earlier publications of IEC TC 37, 77, 86 and

CISPR.
IEC Just Published - webstore.iec.ch/justpublished

Stay up to date on all new IEC publications. Just Published IEC Customer Service Centre - webstore.iec.ch/csc
details all new publications released. Available online and If you wish to give us your feedback on this publication or
also once a month by email. need further assistance, please contact the Customer Service
Centre: [e-mail].
A propos de l'IEC
La Commission Electrotechnique Internationale (IEC) est la première organisation mondiale qui élabore et publie des
Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.

A propos des publications IEC
Le contenu technique des publications IEC est constamment revu. Veuillez vous assurer que vous possédez l’édition la
plus récente, un corrigendum ou amendement peut avoir été publié.

Catalogue IEC - webstore.iec.ch/catalogue Electropedia - www.electropedia.org
Application autonome pour consulter tous les renseignements
Le premier dictionnaire en ligne de termes électroniques et
bibliographiques sur les Normes internationales,
électriques. Il contient 20 000 termes et définitions en anglais
Spécifications techniques, Rapports techniques et autres
et en français, ainsi que les termes équivalents dans 15
documents de l'IEC. Disponible pour PC, Mac OS, tablettes
langues additionnelles. Egalement appelé Vocabulaire
Android et iPad.
Electrotechnique International (IEV) en ligne.

Recherche de publications IEC - www.iec.ch/searchpub
Glossaire IEC - std.iec.ch/glossary
La recherche avancée permet de trouver des publications IEC 65 000 entrées terminologiques électrotechniques, en anglais
en utilisant différents critères (numéro de référence, texte, et en français, extraites des articles Termes et Définitions des
comité d’études,…). Elle donne aussi des informations sur les publications IEC parues depuis 2002. Plus certaines entrées
projets et les publications remplacées ou retirées. antérieures extraites des publications des CE 37, 77, 86 et

CISPR de l'IEC.
IEC Just Published - webstore.iec.ch/justpublished

Service Clients - webstore.iec.ch/csc
Restez informé sur les nouvelles publications IEC. Just
Published détaille les nouvelles publications parues. Si vous désirez nous donner des commentaires sur cette
Disponible en ligne et aussi une fois par mois par email. publication ou si vous avez des questions contactez-nous:
[e-mail].
IEC 61300-2-47 ®
Edition 4.0 2016-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Fibre optic interconnecting devices and passive components – Basic test and

measurement procedures –
Part 2-47: Tests – Thermal shocks

Dispositifs d'interconnexion et composants passifs fibroniques – Procédures

fondamentales d'essais et de mesures –

Partie 2-47: Essais – Chocs thermiques

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.180.20 ISBN 978-2-8322-3418-1

– 2 – IEC 61300-2-47:2016 © IEC 2016
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references. 5
3 General description . 5
4 Apparatus . 5
4.1 Testing chambers . 5
4.2 Support for mounting the DUT . 6
5 Procedure . 6
5.1 General . 6
5.2 Preconditioning . 6
5.3 Initial examination and measurement . 6
5.4 Testing . 6
5.5 Recovery . 7
5.6 Final examination and measurement . 7
6 Severity . 7
7 Details to be specified . 8
Annex A (informative) Minimum temperature value in Finland . 9
Bibliography . 10

Figure 1 – Temperature change cycle . 7

INTERNATIONAL ELECTROTECHNICAL COMMISSION
___________
FIBRE OPTIC INTERCONNECTING
DEVICES AND PASSIVE COMPONENTS –
BASIC TEST AND MEASUREMENT PROCEDURES –

Part 2-47: Tests – Thermal shocks

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 61300-2-47 has been prepared by subcommittee 86B: Fibre optic
interconnecting devices and passive components, of IEC technical committee 86: Fibre optics.
This fourth edition cancels and replaces the third edition published in 2010. This edition
constitutes a technical revision.
This edition includes the following significant technical change with respect to the previous
edition: review of temperature limit in the test severity.

– 4 – IEC 61300-2-47:2016 © IEC 2016
The text of this standard is based on the following documents:
CDV Report on voting
86B/3879/CDV 86B/3937A/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.
The reader’s attention is drawn to the fact that Annex A lists an “in some-country” clause on
differing practices of a less permanent nature relating to the subject of this standard.
A list of all parts in the IEC 61300 series, published under the general title Fibre optic
interconnecting devices and passive components – Basic test and measurement procedures,
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.
FIBRE OPTIC INTERCONNECTING
DEVICES AND PASSIVE COMPONENTS –
BASIC TEST AND MEASUREMENT PROCEDURES –

Part 2-47: Tests – Thermal shocks

1 Scope
This part of IEC 61300 details a procedure for determining the suitability of a fibre optic
device to withstand the effects of thermal shock. In practice, this means a very short change
over time between extreme temperatures.
2 Normative references
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.
IEC 60068-2-14, Environmental testing – Part 2-14: Tests – Test N: Change of temperature
IEC 61300-3-1, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 3-1: Examinations and measurements – Visual examination
3 General description
The procedure described in this standard is conducted in accordance with IEC 60068-2-14,
test Na. The device under test (DUT) is first subjected to one extreme of temperature for a
given period of time. It is then subjected to the other extreme of temperature for an equal
period of time.
Two test methods are considered: manual or automatic. Both methods are considered as
equivalent. The reference method is the automatic one.
4 Apparatus
4.1 Testing chambers
a) Two separate chambers or one rapid temperature change rate may be used. If two
chambers are used, one for the low temperature and one for the high temperature, they
are located such as to allow transfer of the DUT from one chamber to the other within the
prescribed time. Either manual or automatic transfer methods may be used.
b) The chambers shall be capable of maintaining the atmosphere at the appropriate
temperature for the test in any region where the DUT is placed.
c) The absolute humidity of the atmosphere inside the chambers should not exceed 20 g/m .
At the temperature of 60 °C and standard air pressure, the relative humidity should be less
than 16 %.
d) The temperature of the walls of the hot and cold chambers shall not differ by more than
3 % and 8 % respectively from the specified ambient temperature of the test, expressed in
Kelvin (tolerance of 3 % for high temperature, and 8 % for low temperature).

– 6 – IEC 61300-2-47:2016 © IEC 2016
e) The volume of the chambers and the air velocity shall be such that after insertion of the
DUT, the temperature of the atmosphere shall be within the specified tolerance after a
time of not more than 10 % of the exposure time.
f) The air of the chamber shall be circulated so that the air velocity, measured close to the
DUT, shall be not less than 2 m/s.
4.2 Support for mounting the DUT
Unless otherwise specified in the relevant specification, the thermal conductivity of the
supports for mounting the DUT shall be low, such that for practical purposes the DUT is
thermally isolated. When testing several DUTs simultaneously, they shall be so placed that
free circulation should be provided between DUTs, and between DUTs and chamber surfaces.
5 Procedure
5.1 General
Conduct the test according to the following procedure.
– If the component construction includes optical leads, include 1,5 m of cable in the climatic
chamber for each port monitored during the test.
– If optical measurements are requested during the test by the relevant specification, these
measurements shall be performed at a maximum interval of 10 min during the extreme
temperature periods.
– It is not the intention of the test to record the effects of mechanical movement of the
optical cables during the movement of the DUT from one environmental chamber to the
other. Therefore, the physical arrangement of the cables shall ensure that movement of
the DUT does not affect the optical transmission. To verify this, optical cables similar to
those attached to the DUT shall be positioned alongside the cables attached to the DUT
and monitored throughout the test as a control.
5.2 Preconditioning
Unless otherwise stated in the relevant specification, maintain the DUT under standard
atmospheric conditions for a minimum of 2 h. Clean the mechanical and optical alignment
parts of the DUT according to the manufacturer's instructions.
5.3 Initial examination and measurement
Complete initial examinations and measurements as required by the relevant specification.
5.4 Testing
).
a) Place the DUT in the chamber in its normal operating position (initial temperature T
s
b) The DUT shall be subjected to a temperature cycle according to Figure 1.
c) The DUT shall be placed in the cold chamber, the atmosphere of which has been
previously adjusted to the appropriate low temperature T . The atmosphere in the cold
A
chamber shall be maintained at the low temperature T for the appropriate period t (t
A 1 1
includes an initial time for temperature stabilization of atmosphere, according to 4.1 e)).
d) The DUT shall then be removed from the cold chamber and transferred to the hot chamber
in a changeover time t not more than 3 min. In the case of automatic two-chamber test
equipment, a changeover period shall be less than 30 s. The transition time shall include
the time of removal from one chamber and the insertion into the second chamber as well
as any dwell time at the ambient temperature of the laboratory.
e) The atmosphere in the hot chamber shall be maintained at the high temperature T for the
B
appropriate period t
1.
f) For the next cycle, the DUT shall be transferred to the cold chamber in a transition time t
2.
NOTE The exposure time is measured from the moment of insertion of the DUT into the chamber.
The first cycle includes the two exposure times t and the two changeover times t
1 2
(see Figure 1).
≤ 0,1t
T
B
A
B
T
s
Time (t)
t
t
t t 2
1 1
T
A
≤ 0,1t
1 cycle
IEC
Key
A start of first cycle
B end of first cycle and start of second cycle
NOTE The dotted curve is explained in 4.1 e).
Figure 1 – Temperature change cycle
5.5 Recovery
Dry the DUT if necessary and allow it to remain under standard atmospheric conditions for a
period of 2 h.
5.6 Final examination and measurement
On completion of the test, remove all fixtures.
...