1、BRITISH STANDARD BS EN 50289-3-15: 2003 Communication cables Specifications for test methods Part 3-15: Mechanical test methods Underwater cable resistance to hydrostatic pressure The European Standard EN 50289-3-15:2003 has the status of a British Standard ICS 33.120.10 BS EN 50289-3-15:2003 This B
2、ritish Standard, was published under the authority of the Standards Policy and Strategy Committee on 8 September 2003 BSI 8 September 2003 ISBN 0 580 42580 0 National foreword This British Standard is the official English language version of EN 50289-3-15:2003. The UK participation in its preparatio
3、n was entrusted by Technical Committee EPL/46, Cables, wires, waveguides, R.F. connectors, R.F. and microwave passive components and accessories, to Subcommittee EPL/46/1, Communication cables, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained
4、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 the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of th
5、e BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enq
6、uirers to understand the text; present to the responsible international/European committee 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. Summary of pages This do
7、cument comprises a front cover, an inside front cover, the EN title page, pages 2 to 5 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEAN STANDARD EN 50289-3-15 NORME EU
8、ROPENNE EUROPISCHE NORM August 2003 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2003 CENELEC - All rights of exploitation in
9、 any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 50289-3-15:2003 E ICS 33.120.10 English version Communication cables - Specifications for test methods Part 3-15: Mechanical test methods - Underwater cable resistance to hydrostatic pressure Cbles de communication - Spci
10、fications des mthodes dessai Partie 3-15: Mthodes dessais mcaniques - Rsistance la pression hydrostatique du cble immerg Kommunikationskabel - Spezifikationen fr Prfverfahren Teil 3-15: Mechanische Prfverfahren - Wasserdruck-Widerstandsfhigkeit von Unterwasserkabeln This European Standard was approv
11、ed by CENELEC on 2003-03-01. 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 bibliographical references concerning such nation
12、al 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 CENELEC member into its own language
13、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, Hungary, Iceland, Ireland, Italy, Lithuania, Luxembourg, Malta, Netherlan
14、ds, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom. EN 50289-3-15:2003 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 50289-3-15 on 2003-03-01. 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) 2004-03-01 - latest date by which the national standards conflicting with the EN hav
16、e to be withdrawn (dow) 2006-03-01 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 50289-3-15:2003 Contents 1 Scope 4 2 Normative references 4 3 Definitions. 4 4 Test method 4 4.1 Sa
17、mple 4 4.2 Equipment. 4 4.3 Procedure. 5 4.4 Details to be specified. 5 5 Requirements 5 6 Test report. 5 EN 50289-3-15:2003 4 1 Scope This Part 3-15 of EN 50289 details the method of test to determine the ability of an underwater cable used in analogue and digital communication systems to withstand
18、 hydrostatic pressure, 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 cite
19、d 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 latest edition
20、 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 1)Communication cables Part 1-2: Definitions EN 60793-1-46 2002 Optical fibres Part 1-46: Measure
21、ment methods and test procedures Monitoring of changes in optical transmittance (IEC 60793-1-46:2001) 3 Definitions For the purposes of this European Standard the definitions of EN 50290-1-2 apply. 4 Test method 4.1 Sample The sample shall be of a sufficient length to be terminated outside each end
22、of the pressure tube vessel. The cable ends are prepared in order to allow transmitted electrical or optical power control in one or several fibres (as specified in the relevant specification) or in conductors during the test. The minimum test length of the optical fibres shall be 100 m. If necessar
23、y, fibres have to be spliced at the cable ends. 4.2 Equipment The apparatus consists of appropriate measuring apparatus for determining change in electrical or optical characteristics, pressure tube vessel. The size of the pressure tube vessel shall be sufficient to accommodate the minimum length re
24、quired by the Detail Specification. 1)At draft stage. 5 EN 50289-3-15:2003 Optical cables Measuring apparatus shall be in accordance with EN 60793-1-46. Copper cables Network analyser in the frequency range of interest. 4.3 Procedure The test is to be carried out at ambient temperature. The pressure
25、 shall be maintained for 24 h, or a period agreed between the user and the manufacturer. The cable shall be installed in the pressure vessel. The water pressure in the pressure vessel during the test shall be 1,1 times higher than the water pressure at the seabed where the cable shall be installed.
26、The electrical or optical characteristics shall be measured before, during and after the test. NOTE Special care should be taken for the tube ends sealed not to affect the results. 4.4 Details to be specified The specification shall include the following: a) pressure; b) period of application of pre
27、ssure; c) electrical or optical tests to be performed. 5 Requirements Unless otherwise specified in the relevant specification, there shall be no change in electrical or optical characteristics during or after the test. Other requirements may be agreed between the manufacturer and the user. 6 Test r
28、eport The test report shall include the following: pressure; temperature; period of application of pressure; results of electrical or optical tests; length of cable and, if applicable, fibres tested (characteristics of the splices between fibres if they exist); frequency or wavelength at which power
29、 monitoring is conducted; characteristics of measuring equipment including the type of measuring sets and launching conditions. BS EN 50289-3-15: 2003 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Sta
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