1、BRITISH STANDARD C ornrnuni cat ion cables - Specifications for test methods - Part 3-7: Mechanical test methods - Abrasion resistance of the cable sheath The European Standard EN 50289-3-7:2001 has the status of a British Standard ICs 33.120.10 BS EN 50289-3-7:200 1 NO COPYING WITHOUT BSI PERMISSIO
2、N EXCEPT AS PERMIlTED BY COPYRIGHT LAW BS EN 50289-3-7:2001 National foreword This British Standard is the official English language version of The UK participation in its preparation was entrusted by Technical Committee EPL146, Cables, wire and waveguides, RF connectors, and accessories for communi
3、cation and signalling, to Subcommittee EPL/46/1, Communication cables, which has the responsibility to: EN 50289-3-7:2001. - - 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 i
4、nformed; 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. Cross-references The British Standards which implement international or European publications referr
5、ed to in this document 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 necessary provisions of a co
6、ntract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. This British Standard, having Summary of pages This document comprises a front cover, an inside front cover, the EN title pa
7、ge, been prepared under the direction of the Electrotec.nical Sector policv and Strategy Committee, was published under the authority ofthe Standards poliry and Strategy Committee on 13 November 2001 pages 2 to Ei and a back cover. The BSI copyright date displayed in this document indicates when the
8、 document was last issued. Amendments issued since publication Amd. No. IDate 1 Comments I I Q BSI 13 November 2001 ISBN O 580 38690 2 EUROPEAN STANDARD EN 50289-3-7 NORME EUROPENNE EUROPISCHE NORM AuCiust 2001 ICs 33.120.10 English version Communication cables - Specifications for test methods Part
9、 3-7: Mechanical test methods - Abrasion resistance of the cable sheath Cbles de communication - Spcifications des mthodes dessai Partie 3-7: Mthodes dessais mcaniques - Rsistance labrasion des gaines du cble Kommunikationskabel- Spezifikationen fr Prfverfahren Teil 3-7: Mechanische Prfverfahren - A
10、briebfestigkeit des Kabelmantels This European Standard was approved by CENELEC on 2001-05-01. CENELEC members are bound to comply with the CENXENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to
11、-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 in any other language made by translation un
12、der 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, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland,
13、 Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CENELEC European Com mittee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Sas
14、sart 35, B - 1050 Brussels O 2001 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. NO. EN 50289-3-712001 E -2- Foreword This European Standard was prepared by the Technical Committee CENELEC TC 46X, Communication cab1 es. The text of the
15、draft was submitted to the formal vote and was approved by CENELEC as EN 50289-3-7 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 (dop) 2002-04-01 - latest date by
16、 which the national standards conflicting with the EN have to be withdrawn (daw) 2004-04-01 This European Standard has been prepared under the European Mandate M/212 given to CENELEC by the European Commission and the European Free Trade Association. -3- Contents EN 50289-3-712001 1 Scope 4 2 Normat
17、ive references . 4 3 Definitions . 4 4 Test method . 4 4.1 Equipment 4 4.2 Test sample 4 4.3 Procedure . 5 4.4 Requirements 5 5 Test report . 5 EN 50289-3-7:2001 -4- 1 Scope This Part 3-7 of EN 50289 detail the method of test to determine th abrasion resistance of the cable sheath used in analogue a
18、nd digital communication systems. It is to be read in conjunction with Part 3-1 of EN 50289, which contains essential provisions for its application. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative referenc
19、es are cited at the appropriate places in the text and the publications are listed hereafter. 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 lat
20、est edition of the publication referred to applies (including amendments). EN 50289-3-1 2001 Communication cables - Specifications for test methods - Part 3-1: Mechanical test methods - General requirements EN 50290-1-2 Communication cables - Part 1-2: Definitions 3 Definitions For the purposes of t
21、his European Standard the definitions of EN 50290-1-2 apply. 4 Test method 4.1 Equipment The abrasion test rig consists of a device designed to abrade the surface of the cable in both directions parallel to the longitudinal axis of the cable over a length of 10 mm f 1 mm at a frequency of 55 cycles/
22、min tr 5 cycledmin. One cycle consists of one abrading edge movement in each direction. The abrading edge shall be a steel needle with a diameter as specified in the relevant cable specification. A typical apparatus is shown in Figure 1. 4.2 Test sample The sample shall be of a length sufficient to
23、carry out the test specified. A typical length is 750 mm. 1.1.1 ) At draft stage. -5- EN 50289-3-7:2001 4.3 Procedure Securely attach the cable sample, measuring approximately 750 mm in length, to the supporting plate by means of cable clamps. The abrading edge shall be loaded with the mass necessar
24、y to provide the force stated in the detail specification whilst avoiding shock on the cable. Four tests shall be made on each sample, with the sample moved forwards 100 mm between tests while rotating it through an angle of 90, always in the same direction. 4.4 Requirements There shall be no perfor
25、ation of the sheath after performing the number of cycles specified in the detail specification. u Mass Stroke genera tor tu; Sample I I I Detail X LJ Supporting plate Figure 1 - Typical test Set-up for cable sheath abrasion test 5 Test report The test report shall include: - number of cycles; - dia
26、meter of needle; - force applied; - pass/fail criteria. Steel needle BS EN 50289-3-72001 BSI 389 Chiswick High Road London W4 4AL BSI - British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and a
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