BS EN 50289-1-3-2001 Communication cables - Specifications for test methods - Electrical test methods - Dielectric strength - Dielectric strength《通信电缆 试验方法规范 电气试验方法 介电强度》.pdf

1、BRITISH STANDARD BS EN 50289-1-3:2001 Communication cables Specifications for test methods Part 1-3: Electrical test methods Dielectric strength The European Standard EN 50289-1-3:2001 has the status of a British Standard ICS 33.120.10 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIG

2、HT LAWBS EN 50289-1-3:2001 This British Standard, having been prepared under the direction of the Electrotechnical Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 August 2001 BSI 07-2001 ISBN 0 580 38090 4 National foreword This British Stan

3、dard is the official English language version of EN 50289-1-3:2001. 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/46/1, Communication cables, which

4、 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 the BSI Standards Catalogue und

5、er 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 responsible for their correct a

6、pplication. 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 interests informed; monitor rela

7、ted 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 document indicates when the docum

8、ent was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEAN STANDARD EN 50289-1-3 NORME EUROPENNE EUROPISCHE NORM June 2001 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechni

9、sche 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 50289-1-3:2001 E ICS 33.120.20 English version Communication cables - Specifications for test methods Par

10、t 1-3: Electrical test methods - Dielectric strength Cbles de communication - Spcifications des mthodes dessai Partie 1-3: Mthodes dessais lectriques - Rigidit dilectrique Kommunikationskabel - Spezifikationen fr Prfverfahren Teil 1-3: Elektrische Prfverfahren - Spannungsfestigkeit des Dielektrikums

11、 This European Standard was approved by CENELEC on 2000-12-01. 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

12、 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 CEN

13、ELEC 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, Ne

14、therlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EN 50289-1-3:2001 2 Foreword This European Standard was prepared by SC 46XC, Multicore, Multipair and Quad Data communication cables, of Technical Committee CENELEC TC 46X, Communication cables. The text of the draft was subm

15、itted to the formal vote and was approved by CENELEC as EN 50289-1-3 on 2000-12-01. 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) 2002-01-01 - latest date by which the nat

16、ional standards conflicting with the EN have to be withdrawn (dow) 2004-01-01 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 50289-1-3:2001 Contents Foreword 2 1 Scope .4 2 Normativ

17、e references4 3 Definitions4 4 Test method5 4.1 Test voltages5 4.2 Equipment 5 4.3 Test sample 5 4.4 Procedure.5 4.4.1 Symmetric cables. 5 4.4.2 Multi-conductor cables 5 4.4.3 Coaxial cables 5 4.4.4 Armoured cables 5 5 Expression of test results.6 6 Test report6EN 50289-1-3:2001 4 1 Scope This Part

18、1-3 of EN 50289 details the test methods to verify the dielectric strength of the insulation of the finished cables used in analogue and digital communication systems. It is to be read in conjunction with Part 1-1 of EN 50289, which contains essential provisions for its application. 2 Normative refe

19、rences This European Standard incorporates by dated or undated reference, 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 th

20、ese publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). EN 50289-1-1 2001 Communication cables - Specifications for tests methods - Part 1-1: Elect

21、rical test methods - General requirements EN 50290-1-2 1) Communication cables - Part 1-2: Definitions 3 Definitions For the purposes of this European Standard the definitions given in EN 50290-1-2 apply in addition to the following ones. 3.1 group test the group test for multi-element cables (if ap

22、plicable) is the test between two specified groups of conductors each of which has all its conductors connected together : A D B C A B Figure 1 Starquads Figure 2 Pairs Table 1 Pairs Starquads Group I Wires A Wires A,C Group II Wires B Wires B,D1)At draft stage 5 EN 50289-1-3:2001 4 Test method 4.1

23、Test voltages The test shall be performed with AC or DC voltage in accordance with the relevant specification. 4.2 Equipment The test equipment shall be capable of providing the energy and measuring the voltages required to test a complete delivery length. A protective resistance of adequately high

24、value shall be connected in the circuit supplying the required test voltage to the cable under test (CUT). 4.3 Test sample Both ends of the CUT shall be prepared such that, when the specified voltage is supplied to the conductors/screen for test, there shall be no breakdown or significant partial di

25、scharges at the terminations. 4.4 Procedure The test shall be carried out on the CUT after the continuity or the conductor resistance test. The voltage shall be applied at a rate not exceeding 1 kV/s up to the voltage specified. The cable shall be deemed to pass when the specified voltage is maintai

26、ned for the period of time specified in the relevant cable standard. 4.4.1 Symmetric cables The test shall be carried out on the CUT connected to the test equipment as follows : core test group I against group II, one group earthed; screen test group I together with II against screen, screen earthed

27、. 4.4.2 Multi-conductor cables The test shall be carried out on the CUT connected to the test equipment as follows : - core test each conductor against all the other conductors (all other conductors connected together) or a group test may be performed if practical; - screen test all conductors again

28、st the screen, screen earthed. 4.4.3 Coaxial cables The CUT shall be connected to the test equipment as follows : inner conductor against outer conductor, outer conductor earthed except for armoured cables. 4.4.4 Armoured cables If a dielectric strength test for the bedding of armoured cables is req

29、uired, the test shall be carried out as for a screened cable unless otherwise specified.EN 50289-1-3:2001 6 5 Expression of test results The value of the test voltage and the period of time of testing are specified in the relevant cable specification. 6 Test report The test report shall record wheth

30、er the CUT has passed or failed the dielectric strength test. Details of any group testing shall be included in the test report.blankBS EN 50289-1-3:2001 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British

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