EN 50289-4-4-2008 en Communication cables - Specifications for test methods - Part 4-4 Environmental test methods - Resistance to solvents and contaminating fluids《通信电缆 试验方法规范 第4-4.pdf

1、BRITISH STANDARDBS EN 50289-4-4:2008Communication cables Specifications for test methods Part 4-4: Environmental test methods Resistance to solvents and contaminating fluidsICS 33.120.10g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g5

2、5g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 50289-4-4:2008This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 April 2008 BSI 2008ISBN 978 0 580 57843 4National forewordThis British Standard is th

3、e UK implementation of EN 50289-4-4:2008.The UK participation in its preparation was entrusted to Technical Committee EPL/46, Cables, wires and waveguides, radio frequency connectors and accessories for communication and signalling.A list of organizations represented on this committee can be obtaine

4、d on request to its secretary.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 cannot confer immunity from legal obligations. Amendments/corrigenda issued since publicationDat

5、e CommentsEUROPEAN STANDARD EN 50289-4-4 NORME EUROPENNE EUROPISCHE NORM January 2008 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Bru

6、ssels 2008 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 50289-4-4:2008 E ICS 33.120.10 English version Communication cables - Specifications for test methods - Part 4-4: Environmental test methods - Resistance to solvents and c

7、ontaminating fluids Cbles de communication - Spcifications des mthodes dessai - Partie 4-4: Mthodes dessais denvironnement - Rsistance aux solvants et aux fluides contaminants Kommunikationskabel - Spezifikationen fr Prfverfahren - Teil 4-4: Umweltprfverfahren - Widerstandsfhigkeit gegen Lsemittel u

8、nd verunreinigende Flssigkeiten This European Standard was approved by CENELEC on 2007-09-01. 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

9、-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

10、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, Bulgaria, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Fr

11、ance, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. EN 50289-4-4:2008 - 2 - Foreword This European Standard was prepared by the Techni

12、cal Committee CENELEC TC 46X, Communication cables. The text of the draft was submitted to the Unique Acceptance Procedure and was approved by CENELEC as EN 50289-4-4 on 2007-09-01. The following dates were fixed: - latest date by which the EN has to be implemented at national level by publication o

13、f an identical national standard or by endorsement (dop) 2008-09-01 - latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2010-09-01 This European Standard has been prepared under the European Mandate M/212 given to CENELEC by the European Commission and th

14、e European Free Trade Association. _ BS EN 50289-4-4:2008- 3 - EN 50289-4-4:2008 Contents 1 Scope 4 2 Normative references. 4 3 Definitions. 4 4 General 4 5 Test fluids . 4 5.1 List of test fluids. 5 5.2 Precaution . 5 6 Procedure 5 7 Final measurements 6 8 Information to be given in the relevant sp

15、ecification. 6 8.1 Requirements. 6 9 Test report. 6 Table 1 - Fuels, lubricants, hydraulic fluids and anti-freeze agents . 5 Table 2 - Cleaning agents and moisture repellents. 5 BS EN 50289-4-4:2008EN 50289-4-4:2008 - 4 - 1 Scope This Part 4-4 of EN 50289 details the method of test to determine the

16、ability of a cable used in analogue and digital communication systems to withstand solvents and contaminating fluids. It is to be read in conjunction with Part 4-1 of EN 50289, which contains essential provisions for its application. 2 Normative references The following referenced documents are indi

17、spensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 50289-4-1 2001 Communication cables - Specifications for test methods Part 4-1: Environme

18、ntal test methods - General requirements EN 50290-1-2 2004 Communication cables Part 1-2: Definitions 3 Definitions For the purposes of this document, the definitions of EN 50290-1-2 apply. 4 General The properties of plastic materials can be changed during and after contact with contaminating fluid

19、s or solvents. The changes may differ even when the fluid or solvents are from the same family with similar content. A cable can therefore not generally be regarded as resistant against solvents and contaminating fluids. It can be only stated as resistant against such fluids against it has been test

20、ed. 5 Test fluids Fluids with possible detrimental effect on r.f. cables are given in the following two lists, together with the temperature at which the conditioning should be carried out. The test fluids shall be prescribed in the relevant detail or sectional specification and shall be preferably

21、selected from Tables 1 and 2 below. Other test fluids, test temperatures and test times may be agreed between customer and supplier. BS EN 50289-4-4:2008- 5 - EN 50289-4-4:2008 5.1 List of test fluids Table 1 - Fuels, lubricants, hydraulic fluids and anti-freeze agents Test fluid Test temperature a)

22、 A mixture of toluene (aromatic) 30 % and isoctane (aliphatic) 70 % (volume) 40 C 2 C b) Wide cut aviation turbine fuel Fluids a) and b) are representative of the worst possible combination of solvents likely to be encountered in cable applications. 70 C 2 C c) Di-octyl sebacate (aircraft turbine en

23、gine lubrication oil) a150 C 2 C d) Mineral oil, viscosity approximately 15 cSt at 38 C 70 C 2 C e) Castor oil 20 %, 2-ethoxyethanol 80 % (volume) (this represents a normal hydraulic fluid) 20 C 2 C f) Phosphate ester hydraulic fluid (synthetic hydraulic fluid) 70 C 2 C g) Dimethyl silicone fluid (h

24、igh temperature hydraulic fluid) a150 C 2 C h) Lithium soap/synthetic oil grease (low temperature grease) 20 C 2 C i) Monopropylene glycol (de-icing fluid) 20 C 2 C aThese fluids are only to be tested on special high temperature cable with a specified operating temperature 150 C. Table 2 - Cleaning

25、agents and moisture repellents Test fluid Test temperature a) Carbon tetrachloride 15 C to 35 C b) Trichloroethylene, type C 15 C to 35 C c) White spirit 15 C to 35 C d) Petroleum jelly 15 C to 35 C 5.2 Precaution Warning note Many of the fluids listed are highly inflammable and may also have toxic

26、effects. 6 Procedure For each test with a new medium, a new test sample shall be used. A test sample of sufficient length for the required tests shall be taken from the finished cable and immersed in the test fluid. the bending radius during immersion shall be the minimum bending radius according to

27、 the relevant sectional or detail specification. Unless otherwise prescribed by the relevant specification the period of immersion shall be 18 h at the test temperature indicated. After completion of the conditioning, the specimen shall be wiped clean of surplus fluid and then allowed to dry for 2 h

28、 at 70 C, unless a lower value is prescribed by the relevant sectional or detail specification, whereupon they are exposed to standard atmospheric recovery conditions for 1,5 h to 2 h. BS EN 50289-4-4:2008EN 50289-4-4:2008 - 6 - 7 Final measurements At the conclusion of the recovery period, the cabl

29、es shall meet the requirements of the relevant detail or sectional specification for the following properties, unless otherwise specified: a) visual inspection of all construction elements; b) mechanical dimensions; c) voltage withstanding of dielectric and sheath; d) tensile strength and elongation

30、 at break of dielectric and sheath; e) transmission characteristics. 8 Information to be given in the relevant specification a) applicable conditioning fluids; b) drying temperature, if different from 70 C; c) requirements for final measurements; d) any deviation from the standard test procedure. 8.

31、1 Requirements No visible damage or visible change. The electrical and mechanical characteristics shall remain within the specified limits. 9 Test report The test report shall include test temperature, duration of immersion, indicate whether the specimen passes or fails the test. NOTE In case of dif

32、ferent solvents or contaminating fluids, the influence of those fluids to the cable characteristics may change after a drying period of hours or days. Tests may be repeated after a recovery time which is agreed between customer and supplier. Time and test results shall be reported in the test report

33、. BS EN 50289-4-4:2008blankBS EN 50289-4-4:2008BSI389 Chiswick High RoadLondonW4 4ALBSI British Standards InstitutionBSI 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

34、Royal Charter.RevisionsBritish Standards are updated by amendment or revision. 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

35、inaccuracy or ambiguity while using this British Standard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover. Tel: +44 (0)20 8996 9000. Fax: +44 (0)20 8996 7400.BSI offers members an individual updating service called PLUS

36、which ensures that subscribers automatically receive the latest editions of standards.Buying standardsOrders for all BSI, international and foreign standards publications should be addressed to Customer Services. Tel: +44 (0)20 8996 9001. Fax: +44 (0)20 8996 7001. Email: ordersbsi-. Standards are al

37、so available from the BSI website at http:/www.bsi-.In response to orders for international standards, it is BSI policy to supply the BSI implementation of those that have been published as British Standards, unless otherwise requested.Information on standardsBSI provides a wide range of information

38、 on national, European and international standards through its Library and its Technical Help to Exporters Service. Various BSI electronic information services are also available which give details on all its products and services. Contact the Information Centre. Tel: +44 (0)20 8996 7111. Fax: +44 (

39、0)20 8996 7048. Email: infobsi-.Subscribing members of BSI are kept up to date with standards developments and receive substantial discounts on the purchase price of standards. For details of these and other benefits contact Membership Administration. Tel: +44 (0)20 8996 7002. Fax: +44 (0)20 8996 70

40、01. Email: membershipbsi-.Information regarding online access to British Standards via British Standards Online can be found at http:/www.bsi- information about BSI is available on the BSI website at http:/www.bsi-.CopyrightCopyright subsists in all BSI publications. BSI also holds the copyright, in

41、 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, recording or otherwise witho

42、ut 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.Details and advice can be obtained from the Copyright & Licensing Manager. Tel: +44 (0)20 8996 7070. Fax: +44 (0)20 8996 7553. Email: copyrightbsi-.