1、BRITISH STANDARD BS EN 50289-4-2:2001 Communication cables Specifications for test methods Part 4-2: Environmental test methods Water penetration The European Standard EN 50289-4-2:2001 has the status of a British Standard ICS 33.120.10 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRI
2、GHT LAWBS EN 50289-4-2:2001 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 0 580 38682 1 Natio
3、nal foreword This British Standard is the official English language version of EN 50289-4-2:2001. 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 Subcommittee EPL/46/
4、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 document may be found in t
5、he 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 British Standards are r
6、esponsible 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, and keep the UK in
7、terests 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 6, an inside back cover and a back cover. The BSI copyright date displayed in this doc
8、ument indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEAN STANDARD EN 50289-4-2 NORME EUROPENNE EUROPISCHE NORM October 2001 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Eur
9、opisches 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 50289-4-2:2001 E ICS 33.120.10 English version Communication cables Spec
10、ifications for test methods Part 4-2: Environmental test methods Water penetration Cbles de communication Spcifications des mthodes dessai Partie 4-2: Mthodes dessais denvironnement Pntration deau Kommunikationskabel Spezifikationen fr Prfverfahren Teil 4-2: Umweltprfverfahren - Eindringen von Wasse
11、r 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 standard without any alteration. Up-to-date lists and bibliographica
12、l 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 under the responsibility of a CE
13、NELEC 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, Ireland, Italy, Luxembourg, N
14、etherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EN 50289-4-2:2001 - 2 - Foreword This European Standard was prepared by the Technical Committee CENELEC TC 46X, Communication cables. The text of the draft was submitted to the Unique Acceptance Procedure and was approved by
15、 CENELEC as EN 50289-4-2 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 national standards conflicting with the EN have to
16、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 50289-4-2:2001 Contents 1 Scope .4 2 Normative references4 3 Definitions4 4 Test methods4 4.1 Sample4 4
17、.1.1 Method A .4 4.1.2 Method B .4 4.2 Equipment .5 4.3 Procedure 5 4.4 Requirements.5 4.5 Details to be specified 5 5 Test report5EN 50289-4-2:2001 - 4 - 1 Scope This Part 4-2 of EN 50289 details the method of test to determine the ability of a cable used in analogue and digital communication syste
18、ms to block water migration along a specified length. This test applies to water-blocked cables. It is to be read in conjunction with Part 4-1 of EN 50289, which contains essential provisions for its application. 2 Normative references This European Standard incorporates by dated or undated referenc
19、e, provisions from other publications. 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
20、 in it by amendment or revision. For undated references, the latest edition of the publication referred to applies (including amendments). EN 50289-4-1 2001 Communication cables - Specifications for test methods Part 4-1: Environmental test methods - General requirements EN 50290-1-2 1) Communicatio
21、n cables - Part 1-2: Definitions 3 Definitions For the purposes of this European Standard, the definitions of EN 50290-1-2 apply. 4 Test methods Compliance shall be checked on samples of cable using one of the two following methods (A or B), as stated in the detail specification. Method A tests for
22、water migration between the outer interstices of the core and the outer sheath, whilst method B tests for water migration over the entire cross-section designed to be water-blocked. 4.1 Sample 4.1.1 Method A A circumferential portion of sheath and wrapping 25 mm wide shall be removed 3 m from one en
23、d of a sample length of cable and a watertight sleeve shall be applied over the exposed core so as to bridge the gap in the sheath, and allow a 1 m height of water to be applied. 4.1.2 Method B A cable sample having a length 1 m longer than the length to be tested, which shall not exceed 3 m. If req
24、uired, the sample is submitted to the bending procedure. A maximum cable length of 3 m shall then be taken from the central portion of the sample. A watertight seal shall be applied to one end of the sample to allow a 1 m height of water to be applied. NOTE For armoured cables where the armour is no
25、t designed to be water-blocked, the armour may be removed before the application of the seal.1)At draft stage.- 5 - EN 50289-4-2:2001 4.2 Equipment Suitable test arrangements are shown in Figure 1. 4.3 Procedure Unless otherwise specified in the detail specification, the sample shall be supported ho
26、rizontally and a 1 m height of water shall be applied for 24 h at a temperature of (20 5) C. A water soluble fluorescent dye or other suitable colourant may be used to aid in the detection of water seepage. Care should be taken in choosing a fluorescent dye that does not react with any of the cable
27、components. 4.4 Requirements No water shall be detected at the unsealed end of the sample. If a fluorescent dye is used, an ultraviolet light may be used for the examination. NOTE The test procedure mentioned above is a basic compliance requirement and for routine tests, samples of shorter length ma
28、y be tested for a shorter time. 4.5 Details to be specified The detail specification shall include : a) method used and cross-section tested, b) bending procedure applied, where applicable, c) quantity and type of dye, where applicable. 5 Test report The test report shall include: number of samples,
29、 test temperature, sample length, pass/fail criteria.EN 50289-4-2:2001 - 6 - 3 m 25 mm Sample Sample Cap 1 m Height of water Figure 1a - Method A 1 m Water Water seal Sample (3 m max.) Figure 1b - Method B Figure 1 - Water penetration testblankBS EN 50289-4-2:2001 BSI 389 Chiswick High Road London W
30、4 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. It is incorporated by Royal Charter. Revisions British Standards are updated by amendment or revisi
31、on. Users of British Standards should make sure that they possess the latest amendments or editions. It is the constant aim of BSI to improve the quality of our products and services. We would be grateful if anyone finding an inaccuracy or ambiguity while using this British Standard would inform the
32、 Secretary of the technical committee responsible, the identity of which can be found on the inside front cover. Tel: 020 8996 9000. Fax: 020 8996 7400. BSI offers members an individual updating service called PLUS which ensures that subscribers automatically receive the latest editions of standards
33、. Buying standards Orders for all BSI, international and foreign standards publications should be addressed to Customer Services. Tel: 020 8996 9001. Fax: 020 8996 7001. Standards are also available from the BSI website at http:/www.bsi-. In response to orders for international standards, it is BSI
34、policy to supply the BSI implementation of those that have been published as British Standards, unless otherwise requested. Information on standards BSI provides a wide range of information on national, European and international standards through its Library and its Technical Help to Exporters Serv
35、ice. Various BSI electronic information services are also available which give details on all its products and services. Contact the Information Centre. Tel: 020 8996 7111. Fax: 020 8996 7048. Subscribing members of BSI are kept up to date with standards developments and receive substantial discount
36、s on the purchase price of standards. For details of these and other benefits contact Membership Administration. Tel: 020 8996 7002. Fax: 020 8996 7001. Further information about BSI is available on the BSI website at http:/www.bsi-. Copyright Copyright subsists in all BSI publications. BSI also hol
37、ds the copyright, in the UK, of the publications of the international standardization bodies. Except as permitted under the Copyright, Designs and Patents Act 1988 no extract may be reproduced, stored in a retrieval system or transmitted in any form or by any means electronic, photocopying, recordin
38、g or otherwise without prior written permission from BSI. This does not preclude the free use, in the course of implementing the standard, of necessary details such as symbols, and size, type or grade designations. If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained. If permission is granted, the terms may include royalty payments or a licensing agreement. Details and advice can be obtained from the Copyright Manager. Tel: 020 8996 7070.
