1、STD-BSI BS EN hL300-2-4-ENGL 1997 Lb24hb9 Ob47725 1 BRITISH STANDARD Fibre optic interconnecting devices and passive components - Basic test and measurement procedures Part 2-4: Tests - Fibrdcable retention * * m The European Standard EN 61300-2-4 : 1997 has the status of a British Standard ICs 33.1
2、80.20 5- BS EN 61300-2-4 : 1997 IEC 61300-2-4 : 1995 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW - - STD-BSI BS EN b1300-2-4-ENGL 1997 II lb24bb9 Ob4772b O31 M BS EN 61300-2-4 : 1997 This British Standard, hawig been prepared under the direction of the Eiectrotechnicai Sec
3、tor Board, was published under the authority of the Standards Board and comes into effect on 16 October 1997 O BSI 1997 ISBN O 580 28554 5 National foreword This British Standard is the English language version of EN 61300-24 : 1997. It is identical with IEC 61300-2-4 : 1995. The UK participation in
4、 its preparation was entrusted by Technical Committee EPL436, Fibre optics, to Subcommittee EPL436/2, Interconnecting devices and passive components, which has the responsibility to: - aid enquirers to understand the te* - present to the responsible internatio - monitor related international and Eur
5、opean developments and promulgate them in the UK. A list of organizations represented on this subcommittee cm be obtained on request to its secretaq. From 1 January 1997, all IEC publications have the number 60000 added to the old number. For instance, IEC 27-1 has been renumbered as IEC 60027-1. Fo
6、r a period of time during the change over from one numbering system to the other, publications may contain identien from both systems. Cross-references Attention is rawn to the fact that CEN and CENELEC Standards normaly include an annex which lists normative references to international publications
7、 with their corresponding or 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, or by using the Find facility of the BSI Standar
8、ds Electronic Cataiogue. 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 5, a biank page, an inside back cover and a back cover. Amendments issue
9、d since publication haNo. IDate I Text affected EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 61 300-2-4 July 1997 ICs 33.1 80.20 English version Fibre optic interconnecting devices and passive components Basic test and measurement procedures Part 2-4: Tests - Fibrelcable retention (IEC 6 1 3
10、00-2-4: 1 995) Dispositifs dinterconnexion et composants passifs fibres optiques Mthodes fondamentales dessais et de mesures Partie 2-4: Essais - Rtention de la fibre ou du cble (CE1 61 300-2-4: 1995) Lichtweilenieiter - Verbindungseiemente und passive Bauteile - Grundlegende Prf- und Meverfahren Te
11、il 2-4: Prfungen: Zugfestigkeit von Faser oder Kabel (IEC 61 300-2-4: 1995) This European Standard was approved by CENELEC on 1997-07-01. CENELEC members are bound to comply with the CENICENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a nat
12、ional 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
13、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, Denmark, Finland, Franc
14、e, 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 Elektrotechnische Normung Cent
15、ral Secretariat: rue de Stassart 35, 6 - 1050 Brussels o 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 E STD-BSI BS EN bL300-2-4-ENGL 1777 9 Lb24bb7 b47728 704 9 Page 2 EN 61300-2-4 : 1997 Foreword The text o
16、f the International Standard IEC 61 300-2-4: 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 61 300-2-4 on 1997-07-01 without any modification. The following dates wer
17、e 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) 1 998-06-0 1 - latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 1998-06-01 Endorsement notice The text
18、 of the International Standard IEC 61 300-2-4: 1995 was approved by CENELEC as a European Standard without any modification. STD-BSI BS EN bL300-2-4-ENGL 1997 lh24bb7 ObLi7729 840 = Page 3 EN 61300-2-4 : 1997 FIB RE OPT1 C INTERCONNECTING DEVICES AND PASSIVE COMPONENTS - BASIC TEST AND MEASUREMENT P
19、ROCEDURES - Part 2-4: Tests - Fibrekable retention 1 General 1.1 Scope and objeci The purpose of this part of IEC 1300 is to ensure that the captivation or attachment of the fibrelcable to a fibre optic device will withstand tensile loads likely to be applied during normal service. 1.2 General descr
20、iption The specimen is rigidly clamped to a holding fixture and a tensile load is applied to the fibrekable. Potential failure modes for this test 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 conti
21、nuity; f) degradation of optical transmission characteristics; g) excessive movement of the cable/terminus relative to the device. * * In 2 Apparatur The apparatus consists of the following elements. 2.1 Holding fixture A means to hold the fibrelcable and the device(s) in position for the duration o
22、f 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. As an example, wrap the fibrekable around a mandrel having a diameter which is at least 25 times the diameter of the fibrekable. Use an adequate num
23、ber 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 than 50 times the diameter of the fib relcable . NOTE - The fixturing should allow the specimen to be connected to an optical source and detector in or
24、der to monitor changes in amnuation (it required by the detail speclflcation). 2.2 Force generator An appropriate device or apparatus capable of smoothly applying the specified force at the specified rate. Page 4 EN 61300-2-4 : 1997 2.3 Force gauge An appropriate gauge to register the amount of forc
25、e being exerted between the device under test and the fibrekable. This equipment may include a device to record the rate of force application or the total time the force is applied, or both. 2.4 Alt8matiVe apparatus Unless otherwise specified in the detail specification, other apparatus may be used
26、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 while the other holding device remains fixed. 2.5 A device to measure the total time the force is applied, if the apparatu
27、s mentioned in 2.3 is not used. 2.6 Other 8qUjpmnt Optical and other examination and measuring equipment shall be available as required by IEC 1300-3-1 and IEC 1300-3-5, as appropriate. Refer to the required procedure for details. 3 Procedure 3.1 specimens have not been damaged. Visually examine eac
28、h specimen in accordance with IEC 1300-3-1 to ensure that the 3.2 test conditions specified in IEC 1300-1. Unless otherwise specified, precondition each prepared specimen for 4 h at the standard 3.3 apparatus. Securely mount the device under test on the holding fixture and place in the test 3.4 Perf
29、orm any initial optical measurement and make any other measurements as required by the detail specification. Unless otherwise specified in the detail specification, measure the attenuation in accordance with IEC 1300-3-5. 3.5 Activate the test apparatus so that an axial force is gradually exerted be
30、tween the fibreicable 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 that the rate of separation of the holding devices be approximately 25 mmmin. Continue loading until the tensile load s
31、pecified 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 under load, make observations and perform measurements as required by the detail specification. 3.7 Remove the test load an
32、d perform any final optical measurement required by the detail specification. Unless otherwise specified in the detail specification, measure the attenuation in accordance with IEC 1300-3-5. Page 5 EN 61300-2-4 1997 3.8 accordance with IEC 1300-3-1. Remove the specimen from the test apparatus and vi
33、sually examine each specimen in 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 detail specification. 5 Details to be specified The following details, as applicable, shall be specified in the detail specifi
34、cation: - 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 - Duration of the load - Pre-conditioning procedure - Recovery procedure - Method of holding - Specimen functioning or non-fu
35、nctioning . - i - Initial examinations and measurements and performance requirements = - - Examinations and measurements during test and performance requirements - Final examinations and measurements and performance requirements - Method of presenting data (for components tested to failure, a Weibul
36、l distribution may be appropriate) - Deviations from test procedure - Additional pass/fail criteria - s -i * - Optical measurement method, if necessary # * STD-BSI BS EN bL300-2-4-ENGL 1997 Lb24bb9 Obi7732 335 BS EN 61300-2-4 : 1997 1995 IEC 61300-2-4 : BSI 389 Chiswick High Road London w4 4AL BSI -
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