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1、BRITISH STANDARD BS EN 61300-2-28: 1997 IEC 61300-2-28: 1995 Fibre optic interconnecting devices and passive components Basic test and measurement procedures Part 2.28: Tests Industrial atmosphere (sulphur dioxide) The European Standard EN 61300-2-28:1997 has the status of a British Standard ICS 33.
2、180.20 Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 11 12:37:31 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 61300-2-28:1997 This British Standard, having been prepared under the direction of the Electrotechnical Sector Board, was published under the authority of the Standards Board and c
3、omes into effect on 15 October 1997 BSI 09-1999 ISBN 0 580 28577 4 National foreword This British Standard is the English language version of EN 61300-2-28:1997. It is identical with IEC 61300-2-28:1995. The UK participation in its preparation was entrusted by Technical Committee EPL/86, Fibre optic
4、s, to Subcommittee EPL/86/2, 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 the UK interests info
5、rmed; 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. From 1 January 1997, all IEC publications have the number 60000 added to the old number. For instance, IE
6、C 27-1 has been renumbered 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 Attention is drawn to the fact that CEN and CENELEC Standards normally include an annex which lists
7、normative references to international publications with their corresponding European publications. The British Standards which implement these international or European publications may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”,
8、 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 responsible for their correct application. Compliance with a British Standard does not of itself confe
9、r immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 4 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in
10、the amendment table on the inside front cover. Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 11 12:37:31 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 61300-2-28:1997 BSI 09-1999i Contents Page National forewordInside front cover Fore
11、word2 Text of EN 61300-2-283 Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 11 12:37:31 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii blank Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 11 12:37:31 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NOR
12、M EN 61300-2-28 August 1997 ICS 33.180.20 English version Fibre optic interconnecting devices and passive components Basic test and measurement procedures Part 2-28: Tests Industrial atmosphere (sulphur dioxide) (IEC 61300-2-28:1995) Dispositifs dinterconnexion et composants passifs fibres optiques
13、Mthodes fondamentales dessais et de mesures Partie 2-28: Essais Atmosphre industrielle (anhydride sulfureux) (CEI 61300-2-28:1995) Lichtwellenleiter Verbindungselemente und passive Bauteile Grundlegende Prf- und Meverfahren Teil 2-28: Prfungen: Industrieatmosphre (Schwefeldioxid) (IEC 61300-2-28:199
14、5) This European Standard was approved by CENELEC on 1997-07-01. 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 bibliographic
15、al 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 C
16、ENELEC 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, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Nor
17、way, Portugal, Spain, Sweden, Switzerland and United Kingdom. CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1997 CENELEC All rig
18、hts of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61300-2-28:1997 E Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 11 12:37:31 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 61300-2-28:1997 BSI 09-1999 2 Foreword The text of the International St
19、andard IEC 61300-2-28:1995, prepared by SC 86B, Fibre optic interconnecting devices and passive components, of IEC TC 86, Fibre optics, was submitted to the formal vote and was approved by CENELEC as EN 61300-2-28 on 1997-07-01 without any modification. The following dates were fixed: Annexes design
20、ated “normative” are part of the body of the standard. In this standard, Annex ZA is normative. Annex ZA has been added by CENELEC. Endorsement notice The text of the International Standard IEC 61300-2-28:1995 was approved by CENELEC as a European Standard without any modification. Contents Page 1Ge
21、neral3 1.1Scope and object3 1.2General description3 1.3Normative reference3 2Apparatus3 3Procedure3 3.1Conditioning3 3.2Recovery3 4Severity3 5Details to be specified3 Annex ZA (normative) Normative references to international publications with their corresponding European publications4 latest date b
22、y which the EN has to be implemented at national level by publication of an identical national standard or by endorsement(dop) 1998-06-01 latest date by which the national standards conflicting with the EN have to be withdrawn(dow) 1998-06-01 Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 11 12
23、:37:31 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 61300-2-28:1997 BSI 09-19993 1 General 1.1 Scope and object The purpose of this part of IEC 1300 is to assess the corrosive effects of atmospheres polluted with sulphur dioxide on fibre optic devices. The procedure is only suitable for comparative
24、 purposes. It can be considered a general corrosion test which may not predict the behaviour of the devices in use. 1.2 General description This procedure is conducted in accordance with IEC 68-2-42, test Kc. The specimen is exposed to the sulphur dioxide for a specified period of time. 1.3 Normativ
25、e reference The following normative document contains provisions which, through reference in this text, constitute provisions of this part of IEC 1300. At the time of publication, the edition indicated was valid. All normative documents are subject to revision, and parties to agreements based on thi
26、s part of IEC 1300 are encouraged to investigate the possibility of applying the most recent edition of the normative document indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. IEC 68-2-42:1982, Environmental testing Part 2: Tests Test Kc: Sulphur
27、 dioxide test for contacts and connections. 2 Apparatus The apparatus consists of a test chamber in accordance with IEC 68-2-42, test Kc. 3 Procedure 3.1 Conditioning Conduct the test in accordance with IEC 68-2-42, test Kc. The preparation of the specimen shall be in accordance with the detail spec
28、ification. Unless otherwise specified, the specimen shall be subjected to the test in a non-operational mode. 3.2 Recovery Upon completion of the test, the specimen shall be examined and all necessary observations recorded, as specified in the detail specification. 4 Severity The severity consists o
29、f the duration of exposure. The severity shall be specified in the detail specification. The following preferred severities are non-mandatory severities which may be specified for this procedure: 5 Details to be specified The following details, as applicable, shall be specified in the detail specifi
30、cation: Duration Specimen optically functioning or non-functioning Specimen mated or unmated Pre-conditioning procedure Recovery procedure Initial examinations and measurements and performance requirements Examinations and measurements during test and performance requirements Final examinations and
31、measurements and performance requirements Deviations from test procedure Additional pass/fail criteria Duration days 4 10 21 Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 11 12:37:31 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 4 BSI 09-1999 EN 61300-2-28:1997 Annex ZA (normative) Normative refe
32、rences to international publications with their corresponding European publications This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereaf
33、ter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). NOTEWhen an in
34、ternational publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. PublicationYearTitleEN/HDYear IEC 60068-2-421982Basic environmental testing procedures Part 2: Tests Test Kc: Sulphur dioxide test for contacts and connections Licensed Copy: sheffieldu
35、n sheffieldun, na, Sat Nov 11 12:37:31 GMT+00:00 2006, Uncontrolled Copy, (c) BSI blank Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 11 12:37:31 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 61300-2-28: 1997 IEC 61300-2-28: 1995 BSI 389 Chiswick High Road London W4 4AL BSI British Standard
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