EN 62005-3-2001 en Reliability of Fibre Optic Interconnecting Devices and Passive Components - Part 3 Relevant Tests for Evaluating Failure Modes and Failure Mechanisms for Passive.pdf

1、a BRITISH STANDARD BS EN 62 O O 5-3: 200 1 Reliability of fibre optic interconnecting devices and passive components - Part 3: Relevant tests for evaluating failure modes and failure mechanisms for passive components The European Standard EN 62005-3:2001 has the status of a British Standard ICs 33.1

2、80.20; 33.180.99; 17.180.99 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BS EN 62005-3:2001 Amd. No. National foreword Date Comments This British Standard, having been prepared under the direction of the Electrotechnical Sector Committee, was published under the authority o

3、f the Standards Committee and comes into effect on 15 September 2001 This British Standard is the official English language version of EN 62005-3:2001. It is identical with IEC 62005-3:2001. The UK participation in its preparation was entrusted by Technical Committee GEU86, Fibre optics, to Subcommi

4、ttee GEU86/2, Interconnecting devices and passive components, which has the responsibility to: - - aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related int

5、ernational 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. From 1 January 1997, all IEC publications have the number 60000 added to the old number. For instance, IEC 27- 1 has been renumb

6、ered as IEC 60027- 1. For a period of time during the change over from one numbering system to the other, publications may contain identifiers from both systems. Cross-references The British Standards which implement international or European publications referred to in this document may be found in

7、 the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are

8、responsible for their correct application. 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 17, and a back cover. The BSI copyright date displayed

9、 in this document indicates when the document was last issued. O BSI 07-2001 ISBN O 580 38262 1 Y EN 62005-3 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM June 2001 ICs 33.180.20 English version Reliability of fibre optic interconnecting devices and passive components Part 3: Relevant tests for

10、evaluating failure modes and failure mechanisms for passive components (IEC 62005-312001) Fiabilit des dispositifs dinterconnexion et Zuverlssigkeit von LWL- Partie 3: Essais significatifs pour Bauelementen lvaluation des modes et mcanismes de Teil 3: Geeignete Prfverfahren zur dfaillance des compos

11、ants passifs Ermittlung von Ausfallmoden und (CE1 62005-312001) Ausfallmechanismen von passiven Bauteilen des composants passifs fibres optiques Verbindungselementen und passiven .- (IEC 62005-312001) This European Standard was approved by CENELEC on 2001-0501. CENELEC members are bound to comply wi

12、th the CEWCENELEC 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 Secretari

13、at 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 o

14、fficial versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CENELEC European Committee

15、 for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels O 2001 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC me

16、mbers. Ref. No. EN 62005-32001 E Page 2 EN 62005-3:2001 Foreword The text of document 868/1439/FDIS, future edition 1 of IEC 62005-3, prepared by SC 868, Fibre optic interconnecting devices and passive components, of IEC TC 86, Fibre optics, was submitted to the IEC-CENELEC parallel vote and was app

17、roved by CENELEC as EN 62005-3 on 2001-05-01. 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 - latest date by which the national standards conflicting with the EN have to be with

18、drawn (dop) 2002-02-01 (dw) 2004-05-01 Endorsement notice The text of the International Standard IEC 62005-3:2001 was approved by CENELEC as a European Standard without any modification. In the official version, for Bibliography, add the following note after the title: NOTE All International Standar

19、ds mentioned have been harmonized as European Standards. O BSI 07-2001 P Page 3 EN 62005-3:2001 CONTENTS Page Clause 1 Scope 4 2 Choice of relevant tests . 4 3 Typical failure points 4 4 Failure modes and known failure mechanisms . 4 5 Criteria for the choice of stress conditions . Step stress metho

20、d . 5 Bibliography 16 Figure 1 . Choice of relevant tests . 6 Figure 2 . Typical constituent parts and failure points 6 Table 1 . Typical constituent parts and associated failure 7 Table 2 . Failure mode and known failure mechanisms for passive optical components . 8 e, . O BSI 07-2001 Page 4 EN 620

21、05-3:2001 RELIABILITY OF FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIVE COMPONENTS - Part 3: Relevant tests for evaluating failure modes and failure mechanisms for passive components 1 Scope This part of IEC 62005 focuses on failure mechanisms associated with interconnecting devices and passive com

22、ponents. In order to estimate reliability by the acceleration testing described in IEC 62005-2, it is important to determine the dominant failure mechanism and the related test. This part of IEC 62005 introduces a choice of relevant tests from all the IEC 61 300 series tests for each known failure m

23、echanism and failure effects related to certain failure modes. (in IEC 62005-5, extension of severity depending on environmental category and performance request will be given.) 2 Choice of relevant tests Figure 1 shows the guidelines for the choice of relevant tests. At the first stage, relevant te

24、sts are selected by considering the device type of passive optical components. Then, at the second stage, relevant tests are refined by considering known failure mechanisms for each device. Each set of relevant tests for a particular device and for a particular known failure mechanism is obtained by

25、 this procedure. After that, suitable test conditions should be selected. 3 Typical failure points A typical passive optical component consists of different parts (the optical element, the package, the pigtail, joints, etc.) as shown in Figure 2. Each passive component exhibits failures that can be

26、referred to these parts and that can be common for a large class of devices: failure mode, failure mechanisms, failure effects; a set of relevant tests is shown in Table 1. Table 2 is more specific for each device type. 4 Failure modes and known failure mechanisms For any component under considerati

27、on, a potential failure mode and effect analysis (PFMEA) should be carried out. Table 2 shows selected relevant tests by the procedure of Figure 1 for known failure mechanism or failure effects for each type of commercially available and testable devices. It must be emphasized that the list of known

28、 failure mechanisms and failure effects is not exhaustive. If new technology and new passive components become commercially available, they should be added to Table 2. Relevant tests are listed with the failure effect and the dominant known failure mechanism. As other relevant tests or methods of fa

29、ilure mode excitation become known, these should also be added in a supplementary table and published. 0 O BSI 07-2001 f Page 5 EN 62005-3:2001 5 Criteria for the choice of stress conditions - Step stress method The severity and the duration of the test are the main sensitive points in reliability e

30、stimations. The severity indicated for the test by the references is mainly intended for quality evaluation and may be not sufficient for accelerated ageing tests. “Insufficient” means that failures or observable degradation may occur in an unacceptably long time (too low acceleration). On the other

31、 hand, the use of too high acceleration could result in failure mechanisms that are not typical for the devices in their usual operating environments. A feasible way to identify failure mechanisms and to establish bounds for the test severity is the step stress method: a significative sample of devi

32、ces, possibly after product screening, is aged at an increasing level of stress, starting from the operating conditions. Each testing condition is performed for a relatively short time (for instance 150 h); after that, temperature and/or humidity is increased. The severity increase should be high en

33、ough to avoid “memory effects” (ageing behaviour in one step is independent from ageing in the previous ones) but without causing an atypical failure mechanism (at least at the first steps). In some cases, the degradation rates are recorded at each step. It is possible to extrapolate a preliminary r

34、elationship between degradation with temperature and/or humidity. If the degradation rates of more severe conditions are not consistent with an extrapolated acceleration law, this can also mean that a new failure mechanism has been induced. The results of step stress testing can be used to corrobora

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41、 55 O BSI 07-2001 Page 16 EN 62005-3:2001 7 O Bibliography IEC 61 300-2-1 :I 995, Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 2-1: Tests - Vibration (sinusoidal) IEC 61 300-2-2:1995, Fibre optic interconnecting devices and passive compone

42、nts - Basic test and measurement procedures - Part 2-2: Tests - Mating durability IEC 61 300-2-4:1995, Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 2-4: Tests - Fibrekable retention IEC 61 300-2-5:1995, Fibre optic interconnecting devices

43、and passive components - Basic test and measurement procedures - Part 2-5: Tests - Torsion/twist IEC 61 300-2-6:1995, Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 2-6: Tests - Tensile strength of coupling mechanism IEC 61 300-2-7: 1995, Fi

44、bre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 2-7: Tests - Bending moment IEC 61 300-2-9: 1995, Fibre optic interconnecting devices and passive components - Basic fest and measurement procedures - Part 2-9: Tests - Shock IEC 61 300-2-14:1997,

45、 Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 2-14: Tests - Maximum input power IEC 61 300-2-1 5:1995, Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 2-15: Tests - Torque strength

46、of coupling mechanism IEC 61 300-2-1 7:1995, Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 2-1 7: Tests - Cold IEC 61 300-2-1 8:1995, Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part

47、2-18: Tests - Dry heat - High temperature endurance IEC 61 300-2-1 9: 1995, Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 2-19: Tests - Damp heat (steady state) IEC 61 300-2-21 :I 995, Fibre optic interconnecting devices and passive compone

48、nts - Basic test and measurement procedures - Part 2-21: Tests - Composite temperature-humidity cyclic test IEC 61 300-2-22:1995, Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 2-22: Tests - Change of temperature IEC 61 300-2-24: 1999, Fibre

49、 optic interconnecting devices and passive components - Basic tests and measurement procedures - Part 2-24: Tests - Screen testing of ceramic alignment split sleeve by stress application e O BSI 07-2001 Page 17 EN 62005-3:2001 IEC 61 300-2-26: 1995, Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 2-26: Tests - Salt mist O IEC 61 300-2-27:1995, Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 2-27: Tests - Dust - Laminar flow