1、BRITISH STANDARD C ornrnunication cables Specifications for test methods Part 3-17: Mechanical test methods - Adhesion of dielectric and sheath The European Standard EN 50289-3-17:2002 has the status ofa British Standard ICs 33.120.10 BS EN 50289-3-1 7: 2002 Wk present to the responsible European co
2、mmittee 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 subcommittee can be obtained on request to its secretary. Cr
3、oss-r e fer enc e s The British Standards which implement international or European publications referred 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 El
4、ectronic 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 confer immunity from legal obligations. Summary of pages This
5、 document comprises a front cover, an inside front cover, the EN title page, pages 2 to 6, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. O BSI 18 April 2002 ISBN O 580 39592 8 EUROPEAN STANDARD EN 50289-3-1 7 NOR
6、ME EUROPENNE EUROPISCHE NORM March 2002 ICs 33.120.10 English version Communication cables - Specifications for test methods Part 3-17: Mechanical test methods - Adhesion of dielectric and sheath Cbles de communication - S pcif ications des mthodes dessai Partie 3-1 7: Mthodes dessais mcaniques - Ad
7、hrence du dilectrique et de la gaine Kom m u n i kations ka bel - S pezif i kat ion en fr Prfverfa h ren Teil 3-1 7: Mechanische Prfverfahren - Haftung von Dielektrikum und Mantel This European Standard was approved by CENELEC on 2001-11-01. CENELEC members are bound to comply with the CENKENELEC In
8、ternal Regulations which stipulate the conditions for giving this European Standard the 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
9、 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 CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions. CE
10、NELEC members are the national eledrotechnical committees of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CENELEC European Committee for Electrote
11、chnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels O 2002 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No
12、. EN 50289-3-17:2002 E EN 50289-3-17:2002 -2- Foreword This European Standard was prepared by SC 46XC, Multicore, Multipair and Quad Data communication cables, of the Technical Committee CENELEC TC 46X, Communication Cables. The text of the draft was submitted to the Unique Acceptance Procedure and
13、was approved by CENELEC as EN 50289-3-17 on 2001-11-01. 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) 2002-1 1-01 - latest date by which the national standards conflicting
14、 with the EN have to be withdrawn (dow) 2004-1 1-01 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 50289-3-1 7:2002 Contents 1 Scope . 4 2 Normative references 4 3 Definitions . 4 4
15、 4 4 Method 4.1 Preparation of test specimens 4 4.3 Expressi . 4 5 Requirements 5 4.2 Procedur 6 Details to be specified . 5 7 Test report . 5 EN 50289-3-17:2002 -4- 1 Scope This Part 3-17 of EN 50289 details the method of test to determine the adhesion of the dielectric and of the sheath of coaxial
16、 cables used in analogue and 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
17、. These normative references 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
18、undated references, the latest edition of the publication referred to applies (including amendments). EN 50289-3-1 2001 Communication cables - Specifications for tests methods - Part 3-1: Mechanical test methods - General requirements EN 50290-1-21) - Communication cables - Part 1-2: Definitions 3 D
19、efinitions For the purposes of this European Standard, the definitions of EN 50290-1-2 apply. 4 Method 4.1 Preparation of test specimens Two test specimens separated by at least 300 mm shall be cut from the finished cable, unless otherwise specified in the relevant cable specification. Each test spe
20、cimen shall be prepared as shown in Figure 1. Stripping shall be done carefully so as not to effect the adhesion of the test sample. The inner conductor shall be sufficiently long to be gripped by the jaw of a tensile testing device. 4.2 Procedure The test piece shall be loaded into the tensile test
21、ing machine and test fixture as shown in Figure 2. The diameter of the hole in the test plate shall be larger than the diameter of the centre conductor or the dielectric by 0,lO f 0,03 mm. The inner conductor shall be pulled steadily at a rate not exceeding 100 mm/min until the dielectric or the out
22、er conductor and sheath idare completely removed. Sudden pulls and jerking shall be avoided. The physical handling of the test specimens shall be kept to a minimum to avoid specimen deterioration. 4.3 Expression of results Dielectric adhesion shall be defined as the highest tensile reading obtained
23、when the conductor to dielectric bond is broken. At draft stage -5- EN 50289-3-1 7:2002 5 Requirements The value of the adhesion and the lengths l? of the dielectric shall be in accordance with the values stated in the relevant cable specification. The conductor surface must be exempt from any remai
24、ning insulating material. 6 Details to be specified The detail specification shall include: - the temperature; - - the value of the adhesion; the lengths l? of the dielectric. 7 Test report The test report shall include: - temperature; - - - pass/fail criteria. the lengths l? of the dielectric, the
25、value of the adhesion, EN 50289-3-17:2002 -6- / Inner conductor I * i0 mm Outer conductor and sheath Figure 1 - Dimension of stripping Tensile load Holed plate Dielectric Tensile grip Outer Conductor Tensile load Outer conductor and sheath 10 mm Holes plate Figure 2 -Test equipment BS EN 50289-3- 17
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