Licensed copy: Bradford University, University of Bradford, Version correct as of 21/03/2012 14:34, (c) The British Standards Institution 2012
BRITISH STANDARD
Fibre optic
interconnecting
devices and passive
components — Basic
test and measurement
procedures —
Part 2-18: Tests — Dry heat — High
temperature endurance
The European Standard EN 61300-2-18:2005 has the status of a
British Standard
ICS 33.180.20
12&23<,1*:,7+287%6,3(50,66,21(;&(37$63(50,77('%<&23<5,*+7/$:
BS EN
61300-2-18:2005
BS EN 61300-2-18:2005
Licensed copy: Bradford University, University of Bradford, Version correct as of 21/03/2012 14:34, (c) The British Standards Institution 2012
National foreword
This British Standard is the official English language version of
EN 61300-2-18:2005. It is identical with IEC 61300-2-18:2005. It supersedes
BS EN 61300-2-18:1997 which is withdrawn.
The UK participation in its preparation was entrusted by Technical Committee
GEL/86, Fibre optics, to Subcommittee GEL/86/2, Fibre optic interconnecting
devices and passive components, which has the responsibility to:
—
aid enquirers to understand the text;
—
present to the responsible international/European committee any
enquiries on the interpretation, or proposals for change, and keep UK
interests informed;
—
monitor related international and European developments and
promulgate them in the UK.
A list of organizations represented on this subcommittee can be obtained on
request to its secretary.
Cross-references
The British Standards which implement international or European
publications referred to in this document may be found in the BSI Catalogue
under the section entitled “International Standards Correspondence Index”, or
by using the “Search” facility of the BSI Electronic Catalogue or of British
Standards Online.
This publication does not purport to include all the necessary provisions of a
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Compliance with a British Standard does not of itself confer immunity
from legal obligations.
Summary of pages
This document comprises a front cover, an inside front cover, the EN title page,
pages 2 to 8, an inside back cover and a back cover.
The BSI copyright notice displayed in this document indicates when the
document was last issued.
Amendments issued since publication
This British Standard was
published under the authority
of the Standards Policy and
Strategy Committee
on 23 January 2006
© BSI 23 January 2006
ISBN 0 580 47717 7
Amd. No.
Date
Comments
EN 61300-2-18
EUROPEAN STANDARD
Licensed copy: Bradford University, University of Bradford, Version correct as of 21/03/2012 14:34, (c) The British Standards Institution 2012
NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2005
ICS 33.180.20
Supersedes EN 61300-2-18:1997
English version
Fibre optic interconnecting devices and passive components –
Basic test and measurement procedures
Part 2-18: Tests –
Dry heat –
High temperature endurance
(IEC 61300-2-18:2005)
Dispositifs d'interconnexion et
composants passifs à fibres optiques Méthodes fondamentales d'essais
et de mesures
Partie 2-18: Essais –
Chaleur sèche –
Résistance à haute température
(CEI 61300-2-18:2005)
Lichtwellenleiter-Verbindungselemente
und passive Bauteile –
Grundlegende Prüf- und Messverfahren
Teil 2-18: Prüfungen –
Trockene Wärme, Dauerprüfung
(IEC 61300-2-18:2005)
This European Standard was approved by CENELEC on 2005-08-01. 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 Central Secretariat 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 Central Secretariat has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden,
Switzerland and United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: rue de Stassart 35, B - 1050 Brussels
© 2005 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61300-2-18:2005 E
–2–
EN 61300-2-18:2005
Licensed copy: Bradford University, University of Bradford, Version correct as of 21/03/2012 14:34, (c) The British Standards Institution 2012
Foreword
The text of document 86B/2136/FDIS, future edition 2 of IEC 61300-2-18, prepared by SC 86B, Fibre
optic interconnecting devices and passive components, of IEC TC 86, Fibre optics, was submitted to
the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61300-2-18 on 2005-08-01.
This European Standard supersedes EN 61300-2-18:1997.
Specific technical changes in this European Standard involve simplification of the combination of
temperature and exposure time.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement
(dop)
2006-05-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn
(dow)
2008-08-01
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 61300-2-18:2005 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 standards indicated:
IEC 61300-1
NOTE
Harmonized as EN 61300-1:2003 (not modified).
IEC 61300-2-22
NOTE
Harmonized as EN 61300-2-22:1995 (not modified).
__________
–3–
EN 61300-2-18:2005
Licensed copy: Bradford University, University of Bradford, Version correct as of 21/03/2012 14:34, (c) The British Standards Institution 2012
CONTENTS
1
Scope ............................................................................................................................4
2
Normative references .....................................................................................................4
3
General description ........................................................................................................4
4
Apparatus ......................................................................................................................5
5
4.1 Chamber ...............................................................................................................5
4.2 Optical source and detector ...................................................................................5
Procedure ......................................................................................................................5
6
5.1 Preconditioning .....................................................................................................5
5.2 Initial examinations and measurements..................................................................5
5.3 Conditioning ..........................................................................................................5
5.4 Recovery...............................................................................................................6
5.5 Final examinations and measurements ..................................................................6
Severity..........................................................................................................................6
7
Details to be specified ....................................................................................................6
Bibliography .........................................................................................................................7
Annex ZA (normative) Normative references to international publications with their
corresponding European publications.....................................................................................................8
–4–
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EN 61300-2-18:2005
FIBRE OPTIC INTERCONNECTING DEVICES
AND PASSIVE COMPONENTS –
BASIC TEST AND MEASUREMENT PROCEDURES –
Part 2-18: Tests – Dry heat –
High temperature endurance
1
Scope
This part of IEC 61300 details a procedure to determine the suitability of a fibre optic device
or closure to withstand the environmental condition of extended high temperature that may
occur during operation, storage and/or transport. The test is intended to indicate the
performance of such devices when exposed to heat of constant temperature over a given
period.
In general terms, this test provides a high temperature to induce potential failures due to
softening and expansions.
This procedure does not assess the ability of a device to operate during temperature
variations; in this case, IEC 61300-2-22 would be used.
2
Normative references
The following referenced documents are indispensable for the application 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.
IEC 60068-2-2, Environmental testing – Part 2: Tests – Tests B: Dry heat
IEC 61300-3-1, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 3-1: Examinations and measurements – Visual
examination
IEC 61300-3-3, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 3-3: Examinations and measurements – Active
monitoring of changes in attenuation and return loss
IEC 61300-3-4, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 3-4: Examinations and measurements – Attenuation
3
General description
This procedure is conducted in accordance with IEC 60068-2-2, test Bb. The specimen is
placed in an environmental chamber and subjected to a dry heat environment, which is
maintained at a given temperature for a specified duration, as defined in the relevant
specification. If required, the attenuation of the specimen is monitored throughout the
duration of the test.
–5–
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4
4.1
EN 61300-2-18:2005
Apparatus
Chamber
The apparatus shall consist of an environmental chamber in accordance with IEC 60068-2-2,
test Bb. The chamber shall be capable of housing the specimen and of allowing access for
measurement during conditioning, if required. It shall also be capable of maintaining the
specified temperature and humidity within the specified tolerances. Forced air circulation may
be used to maintain homogeneous conditions. Care shall be taken to ensure that the
specimen is not directly exposed to the heating or cooling elements.
4.2
Optical source and detector
The optical source and detector used to measure changes in attenuation shall comply with
those specified in IEC 61300-3-4.
NOTE A device to record attenuation over time (X, t) should be used where the optical detector does not have the
capability to monitor continuously.
5
Procedure
Conduct the procedure in accordance with IEC 60068-2-2, test Bb.
Unless otherwise stated:
−
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, these measurements shall be
performed at a maximum interval of 1 h.
5.1
Preconditioning
Clean the mechanical and optical alignment parts of the specimen according to the
manufacturer’s instructions.
Unless otherwise stated, maintain the specimen under standard atmospheric condition (room
temperature condition) for 2 h minimum.
5.2
Initial examinations and measurements
If specified, perform initial examinations and measurements as required by the relevant
specification.
5.3
Conditioning
5.3.1 Set the chamber and the specimen to standard atmospheric conditions. Place the
specimen in the chamber in its normal operating position including hook-ups to peripheral
equipment (when required).
5.3.2 Adjust the chamber temperature and humidity to the specified severity. The rate of
change of temperature shall not exceed 1 °C/min, averaged over a maximum period of 5 min.
Allow the specimen to reach temperature stability and maintain the temperature for the
duration specified.
5.3.3 At the completion of the test, allow the specimen to remain in the chamber while the
temperature is gradually reduced to standard atmospheric conditions.
–6–
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EN 61300-2-18:2005
5.3.4 Where optical measurements are required during the test, measurements shall be
made at a maximum interval of 1 h. Measurements shall be made in accordance with
IEC 61300-3-3 regarding monitoring change in attenuation and return loss.
5.4
Recovery
Allow the specimen to remain under standard atmospheric conditions for a period of greater
than 2 h.
5.5
Final examinations and measurements
On completion of the test, remove all fixtures and make final measurements, as defined by
the relevant specification, to ensure that there is no permanent damage to the specimen. The
results of the final measurement shall be within the limit established in the relevant
specification.
Unless otherwise specified, visually examine the specimen in accordance with IEC 61300-3-1.
Check for evidence of any degradation in the specimen. This may include, for example
–
broken, loose or damaged parts or accessories;
–
breaking or damage to the cable jacket, seals, strain relief, or fibres;
–
displaced, bent, or broken parts.
6
Severity
The severity consists of the combination of the temperature and exposure time. The severity
shall be specified in the relevant specification.
One of the severities indicated in Table 1 shall be specified for this procedure:
Table 1 – Severities
Temperature
°C
Duration of exposure
h
+ 60
+70
96
+85
7
Details to be specified
The following details, as applicable, shall be specified in the relevant specification:
−
temperature;
–
duration of exposure;
−
initial examinations and measurements and performance requirements;
−
examinations and measurements during test and performance requirements;
−
final examinations and measurements and performance requirements;
−
deviations from test procedure;
−
additional pass/fail criteria.
–7–
EN 61300-2-18:2005
Licensed copy: Bradford University, University of Bradford, Version correct as of 21/03/2012 14:34, (c) The British Standards Institution 2012
Bibliography
IEC 61300-1, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 1: General and guidance
IEC 61300-2-22, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 2-22: Tests – Change of temperature
__________
–8–
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EN 61300-2-18:2005
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following referenced documents are indispensable for the application 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
Where an international publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
Publication
Year
Title
EN/HD
Year
IEC 60068-2-2
- 1)
Basic environmental testing procedures
Part 2: Tests - Tests B: Dry heat
EN 60068-2-2
1993 2)
IEC 61300-3-1
-
1)
Fibre optic interconnecting devices and
passive components - Basic test and
measurement procedures
Part 3-1: Examinations and
measurements - Visual examination
EN 61300-3-1
1997
2)
IEC 61300-3-3
-
1)
Part 3-3: Examinations and
measurements - Active monitoring of
changes in attenuation and return loss
EN 61300-3-3
2003
2)
IEC 61300-3-4
-
1)
Part 3-4: Examinations and
measurements - Attenuation
EN 61300-3-4
2001
2)
1) Undated reference.
2) Valid edition at date of issue.
blank
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Licensed copy: Bradford University, University of Bradford, Version correct as of 21/03/2012 14:34, (c) The British Standards Institution 2012
BS EN
61300-2-18:2005
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