1、BRITISH STANDARD BS EN 50289-3-7:2001 Communication 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 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS
2、PERMITTED BY COPYRIGHT LAWBS EN 50289-3-7:2001 This British Standard, having been prepared under the direction of the Electrotechnical Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 13 November 2001 BSI 13 November 2001 ISBN
3、0 580 38690 2 National foreword This British Standard is the official English language version of EN 50289-3-7:2001. The UK participation in its preparation was entrusted by Technical Committee EPL/46, Cables, wire and waveguides, RF connectors, and accessories for communication and signalling, to S
4、ubcommittee EPL/46/1, Communication cables, which has the responsibility 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 documen
5、t 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 contract. Users of Brit
6、ish Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change,
7、 and keep the UK interests informed; monitor related international 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 5 and a back cover. The BSI copyright date displayed in this docume
8、nt indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEAN STANDARD EN 50289-3-7 NORME EUROPENNE EUROPISCHE NORM August 2001 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europis
9、ches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2001 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 50289-3-7:2001 E ICS 33.120.10 English version Communication cables - Specif
10、ications for test methods Part 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-
11、7: Mechanische Prfverfahren - Abriebfestigkeit des Kabelmantels This European Standard was approved by CENELEC on 2001-05-01. 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 standa
12、rd 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 in any other
13、 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, Czech Republic, Denmark, Finland, F
14、rance, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EN 50289-3-7:2001 - 2 - Foreword This European Standard was prepared by the Technical Committee CENELEC TC 46X, Communication cables. The text of the draft was su
15、bmitted 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 which the natio
16、nal standards conflicting with the EN have to be withdrawn (dow) 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 - EN 50289-3-7:2001 Contents 1 Scope 4 2 Normative references.
17、 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 . 5EN 50289-3-7:2001 - 4 - 1 Scope This Part 3-7 of EN 50289 details the method of test to determine the abrasion resistance of the cable sheath used in analogue and digital comm
18、unication 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 references are cited at
19、 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 latest edition of
20、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 1) Communication cables - Part 1-2: Definitions 3 Definitions For the purposes of this European
21、 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 1 mm at a frequency of 55 cycles/min 5 cycles/m
22、in. 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 carry out the te
23、st specified. A typical length is 750 mm. 1.1.1 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 necessary to provide th
24、e 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 perforation of the sh
25、eath after performing the number of cycles specified in the detail specification. Stroke generator Mass Stroke Sample Supporting plate Detail X Steel needle Figure 1 - Typical test set-up for cable sheath abrasion test 5 Test report The test report shall include: - number of cycles; - diameter of ne
26、edle; - force applied; - pass/fail criteria.BS EN 50289-3-7:2001 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 at the international level.
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