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1、BRITISH STANDARD BS EN 61300-2-47:2004 Fibre optic interconnecting devices and passive components Basic test and measurement procedures Part 2-47: Tests Thermal shocks The European Standard EN 61300-2-47:2004 has the status of a British Standard ICS 33.180.20 ? Licensed Copy: sheffieldun sheffieldun
2、, na, Mon Nov 13 04:19:04 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 61300-2-47:2004 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 15 November 2004 BSI 15 November 2004 ISBN 0 580 44741 3 National foreword This British Standard is the
3、 official English language version of EN 61300-2-47:2004. It is identical with IEC 61300-2-47:2004. 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 r
4、esponsibility 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 entit
5、led “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
6、 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 the UK interests informed; monitor related inte
7、rnational 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 wa
8、s last issued. Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 13 04:19:04 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD EN 61300-2-47 NORME EUROPENNE EUROPISCHE NORM October 2004 CENELEC European Committee for Electrotechni
9、cal Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2004 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 6
10、1300-2-47:2004 E ICS 33.180.20 English version Fibre optic interconnecting devices and passive components Basic test and measurement procedures Part 2-47: Tests Thermal shocks (IEC 61300-2-47:2004) Dispositifs dinterconnexion et composants passifs fibres optiques - Mthodes fondamentales dessais et d
11、e mesures Partie 2-47: Essais Chocs thermiques (CEI 61300-2-47:2004) Lichtwellenleiter Verbindungselemente und passive Bauteile Grundlegende Prf- und Messverfahren Teil 2-47: Prfungen Temperaturschock (IEC 61300-2-47:2004) This European Standard was approved by CENELEC on 2004-09-01. CENELEC members
12、 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
13、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
14、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,
15、 Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 13 04:19:04 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Foreword The text of document 86B/1952/FDIS, future edition 1 of IEC 61300-2-47, prepared by SC 86B, Fibre optic in
16、terconnecting 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 61300-2-47 on 2004-09-01. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of a
17、n identical national standard or by endorsement (dop) 2005-06-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2007-09-01 Annex ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 61300-2-47:2004 was approved
18、by CENELEC as a European Standard without any modification. _ Page 2 EN 61300247:2004 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 13 04:19:04 GMT+00:00 2006, Uncontrolled Copy, (c) BSI CONTENTS 1 Scope.4 2 Normative references .4 3 General description 4 4 Apparatus.4 5 Procedure.4 5.1 Precon
19、ditioning .5 5.2 Initial measurements .5 5.3 Testing 5 5.4 Recovery.6 5.5 Final measurements 6 6 Severity6 7 Details to be specified 7 Annex ZA (Normative).8 Page 3 EN 61300247:2004 Annex ZA (normative) Normative references to international publications with their corresponding European publications
20、 . 8 Annex ZA (normative) Normative references to international publications with their corresdnopiuE gnroepap nublicatsnoi . 8 Annex ZA (normative) Normative references to international publications with their corresponding European publications .8 Licensed Copy: sheffieldun sheffieldun, na, Mon No
21、v 13 04:19:04 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 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 with
22、stand the effects of thermal shock. In practice this means a very short change over time between extreme temperatures. 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 r
23、eferences, the latest edition of the referenced document (including any amendments) applies. IEC 60068-2-14, Environmental testing Part 2: 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: Ex
24、aminations and measurements Visual examination 3 General description This procedure 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 temperatu
25、re 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 The apparatus consists of suitable environmental chambers in accordance with IEC 60068-2-14, Test Na. 5 Procedure Co
26、nduct the procedure in accordance with IEC 60068-2-14, Test Na. Unless otherwise stated in the relevant specification, the following applies. If the component construction includes optical leads, include 1,5 m of cable in the climatic chamber for each port monitored during the test. Page 4 EN 613002
27、47:2004 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 13 04:19:04 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 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
28、 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 opti
29、cal 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. 5.1 Preconditioning Unless otherwise stated in the relevant specification, maintain the DUT under standar
30、d atmospheric conditions for a minimum of 2 h. Clean the mechanical and optical alignment parts of the DUT according to the manufacturers instructions. 5.2 Initial measurements Take initial examinations and measurements as required by the relevant specification. 5.3 Testing 5.3.1 Place the DUT in th
31、e chamber in its normal operating position and make connections to the monitoring equipment. 5.3.2 Make the temperature change according to the following cycle. The DUT shall be placed in the cold chamber, the atmosphere of which has been previously adjusted to the appropriate low temperature TA. Th
32、e atmosphere in the chamber shall be maintained at the low temperature TA for the appropriate period t1. The DUT shall then be removed from the cold chamber and transferred to the hot chamber in a change over time t2. The atmosphere in the hot chamber shall be maintained at the high temperature TB f
33、or the appropriate period t1. For the next cycle the DUT shall be transferred to the cold chamber in a transition time t2. The first cycle comprises the two exposure times t1 and the two change over times t2 (see Figure 1). Page 5 EN 61300247:2004 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov
34、13 04:19:04 GMT+00:00 2006, Uncontrolled Copy, (c) BSI t1 A B TA TB Time t 1 cycle Temperature in the chamber t2t2t1 t1 10 t1 10 Key A start of first cycle B end of first cycle and start of second cycle NOTE The dotted curve is explained in IEC 60068-2-14. Figure 1 Thermal cycle 5.4 Recovery Dry the
35、 DUT if necessary and allow it to remain under standard atmospheric conditions for a period of 2 h. 5.5 Final measurements Clean the mechanical and optical alignment parts of the DUT according to the manufacturers instructions. Take final measurements as required by the relevant specification. On co
36、mpletion of the test, remove all fixtures. Clean the mechanical and optical alignment parts of the DUT according to the manufacturers instructions. Take final measurements as required by the relevant specification. If specified visually examine the specimen in accordance with IEC 61300-3-1 and take
37、any measurements specified to ensure that there is no permanent damage. 6 Severity The severity consists of the combination of the low temperature, high temperature, duration, change-over time and number of cycles: The following severity shall be used for this procedure: Low Temperature: TA = 40 C H
38、igh Temperature: TB = +85 C Number of cycles: 20 Duration at extreme temperature: t1 = 90 min Change-over time: Manual test: t2 2 min Automatic test: t2 0,5 min Page 6 EN 61300247:2004 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 13 04:19:04 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 7 Detail
39、s to be specified The following details shall be specified in the relevant specification: manual or automatic test; initial examinations, measurements and performance requirements; examinations, measurements during test and performance requirements; final examinations, measurements and performance r
40、equirements; deviations from test procedure; additional pass/fail criteria. _ Page 7 EN 61300247:2004 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 13 04:19:04 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Annex ZA (normative) Normative references to international publications with their correspo
41、nding 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 interna
42、tional publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. Publication Year Title EN/HD Year IEC 60068-2-14 - 1) Environmental testing Part 2: Tests - Test N: Change of temperature EN 60068-2-14 1999 2) IEC 61300-3-1 - 1) Fibre optic interconnecting
43、 devices and passive components - Basic test and measurement procedures Part 3-1: Examinations and measurements - Visual examination EN 61300-3-1 1997 2) 1) Undated reference. 2) Valid edition at date of issue. Page 8 EN 61300247:2004 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 13 04:19:04 G
44、MT+00:00 2006, Uncontrolled Copy, (c) BSI blank Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 13 04:19:04 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 61300-2-47:2004 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible
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