1、BRITISH STANDARD BS EN 61300-2-4:1997 IEC 61300-2-4:1995 Fibre optic interconnecting devices and passive components Basic test and measurement procedures Part 2-4: Tests Fibre/cable retention The European Standard EN 61300-2-4:1997 has the status of a British Standard ICS 33.180.20BS EN61300-2-4:199
2、7 This British Standard, having been prepared under the directionof the ElectrotechnicalSector Board, was published under the authorityof the Standards Boardand comes into effect on 15 October 1997 BSI 09-1999 ISBN 0 580 28554 5 National foreword This British Standard is the English language version
3、 of EN 61300-2-4:1997. It is identical with IEC 61300-2-4:1995. The UK participation in its preparation was entrusted by Technical Committee EPL/86, Fibre optics, to Subcommittee EPL/86/2, Interconnecting devices and passive components, which has the responsibility to: aid enquirers to understand th
4、e 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 international and European developments and promulgate them in the UK. A list of organizations represented on this sub
5、committee 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, IEC27-1 has been renumbered as IEC60027-1. For a period of time during the change over from one numbering system to the other, publications ma
6、y contain identifiers from both systems. Cross-references Attention is drawn to the fact that CEN and CENELEC Standards normally include an annex which lists normative references to international publications with their corresponding or European publications. The British Standards which implement th
7、ese international or European publications may be found in 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 necessar
8、y provisions of a contract. Users of British Standards are 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, pages i and ii, theEN tit
9、le 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 the amendment table on the inside front cover. Amendments issued since publication Amd. No. Date CommentsBSEN61300-2-4:1997 BSI 09-1999 i Co
10、ntents Page National foreword Inside front cover Foreword 2 Text of EN 61300-2-4 3ii blankEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 61300-2-4 July 1997 ICS 33.180.20 English version Fibre optic interconnecting devices and passive components Basic test and measurement procedures Part 2-4:
11、Tests Fibre/cable retention (IEC 61300-2-4:1995) Dispositifs dinterconnexion et composantspassifs fibres optiques Mthodes fondamentales dessais et de mesures Partie 2-4: Essais Rtention de lafibreouducble (CEI 61300-2-4:1995) Lichtwellenleiter Verbindungselemente und passive Bauteile Grundlegende Pr
12、f- und Meverfahren Teil 2-4: Prfungen: Zugfestigkeit von Faseroder Kabel (IEC 61300-2-4:1995) 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 t
13、he 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, G
14、erman). 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, Denma
15、rk, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechn
16、ische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1997 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61300-2-4:1997 EEN61300-2-4:1997 BSI 09-1999 2 Foreword The text of the International Standard IEC 61300-2-4
17、:1995, prepared by SC 86B, Fibre optic interconnecting devices and passive components, of IEC TC86, Fibre optics, was submitted to the formal vote and was approved by CENELEC as EN61300-2-4 on 1997-07-01 without any modification. The following dates were fixed: Endorsement notice The text of the Int
18、ernational Standard IEC 61300-2-4:1995 was approved by CENELEC as a European Standard without any modification. Contents Page Foreword 2 1 General 3 2 Apparatus 3 3 Procedure 3 4 Severity 4 5 Details to be specified 4 latest date by which the EN has to be implemented at national level by publication
19、 of an identical national standard or by endorsement (dop) 1998-06-01 latest date by which the national standards conflicting with the EN haveto be withdrawn (dow) 1998-06-01EN61300-2-4:1997 BSI 09-1999 3 1 General 1.1 Scope and object The purpose of this part of IEC1300 is to ensure that the captiv
20、ation or attachment of the fibre/cable to a fibre optic device will withstand tensile loads likely to be applied during normal service. 1.2 General description The specimen is rigidly clamped to a holding fixture and a tensile load is applied to the fibre/cable. Potential failure modes for this test
21、 include, but are not limited to: a) cable jacket damage; b) fibre breakage or damage; c) cable clamp failure; d) cable pull-out; e) loss of optical continuity; f) degradation of optical transmission characteristics; g) excessive movement of the cable/terminus relative to the device. 2 Apparatus The
22、 apparatus consists of the following elements. 2.1 Holding fixture A means to hold the fibre/cable and the device(s) in position for the duration of the test. The holding, method used shall not distort the device under test. Mount the device in a fixed position using its normal mounting provisions.
23、As an example, wrap the fibre/cable around a mandrel having a diameter which is at least 25times the diameter of the fibre/cable. Use an adequate number of turns to preclude slippage. The distance between the rearmost portion of the device under test and the mandrel tangent point shall be no less th
24、an50times the diameter of the fibre/cable. NOTEThe fixturing should allow the specimen to be connected to an optical source and detector in order to monitor changes in attenuation (if required by the detail specification). 2.2 Force generator An appropriate device or apparatus capable of smoothly ap
25、plying the specified force at the specified rate. 2.3 Force gauge An appropriate gauge to register the amount of force being exerted between the device under test and the fibre/cable. This equipment may include a device to record the rate of force application or the total time the force is applied,
26、or both. 2.4 Alternative apparatus Unless otherwise specified in the detail specification, other apparatus may be used in lieu of a mechanical separation device or force gauge. For example, the required force may be achieved by applying controlled increments of mass to one of the holding devices whi
27、le the other holding device remains fixed. 2.5 Timer A device to measure the total time the force is applied, if the apparatus mentioned in2.3 is not used. 2.6 Other equipment Optical and other examination and measuring equipment shall be available as required by IEC1300-3-1 and IEC1300-3-5, as appr
28、opriate. Refer to the required procedure for details. 3 Procedure 3.1 Visually examine each specimen in accordance with IEC1300-3-1 to ensure that the specimens have not been damaged. 3.2 Unless otherwise specified, precondition each prepared specimen for4h at the standard test conditions specified
29、in IEC 1300-1. 3.3 Securely mount the device under test on the holding fixture and place in the test apparatus. 3.4 Perform any initial optical measurement and make any other measurements as required by the detail specification. Unless otherwise specified in the detail specification, measure the att
30、enuation in accordance with IEC 1300-3-5. 3.5 Activate the test apparatus so that an axial force is gradually exerted between the fibre/cable and the device under test. Apply the load gradually so as to eliminate any impulse or impact loading effect. If automatic equipment is used, it is recommended
31、 that the rate of separation of the holding devices be approximately25mm/min. Continue loading until the tensile load specified in the detail specification has been reached. 3.6 Maintain the specified load for the specified time period required by the detail specification. While the specimen is unde
32、r load, make observations and perform measurements as required by the detail specification. 3.7 Remove the test load and perform any final optical measurement required by the detail specification. Unless otherwise specified in the detail specification, measure the attenuation in accordance with IEC
33、1300-3-5. 3.8 Remove the specimen from the test apparatus and visually examine each specimen in accordance with IEC 1300-3-1.EN61300-2-4:1997 4 BSI 09-1999 4 Severity The severity consists of the magnitude of the tensile load and the time duration it is applied. The severity shall be given in the de
34、tail specification. 5 Details to be specified The following details, as applicable, shall be specified in the detail specification: Quantity and description of samples required for test Magnitude, direction, and rate of application of the tensile load Point of application of the tensile load Duratio
35、n of the load Pre-conditioning procedure Recovery procedure Method of holding Specimen functioning or non-functioning Initial examinations and measurements and performance requirements Examinations and measurements during test and performance requirements Final examinations and measurements and perf
36、ormance requirements Optical measurement method, if necessary Method of presenting data (for components tested to failure, a Weibull distribution may be appropriate) Deviations from test procedure Additional pass/fail criteria5 blankBS EN 61300-2-4:1997 IEC 61300-2-4:1995 BSI 389 Chiswick High Road
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