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BRITISH STANDARD BS 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

The European Standard EN 61300-2-18:2005 has the status of a British Standard

ICS 33.180.20

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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

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BS EN 61300-2-18:1997 which is withdrawn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:

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 contract Users are responsible for its correct application

Compliance with a British Standard does not of itself confer immunity from legal obligations.

— 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

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

EUROPEAN STANDARD EN 61300-2-18

NORME EUROPÉENNE

EUROPÄISCHE NORM September 2005

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

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

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 –

CONTENTS

1 Scope 4

2 Normative references 4

3 General description 4

4 Apparatus 5

4.1 Chamber 5

4.2 Optical source and detector 5

5 Procedure 5

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

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

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

examination

IEC 61300-3-3, Fibre optic interconnecting devices and passive components – Basic test

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

4 Apparatus

4.1 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

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

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

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

EN 61300-2-18:2005

– 5 –

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

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 +85

96

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

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

EN 61300-2-18:2005

– 7 –

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.

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