BS EN 50290-2-28-2002 Communication cables - Common design rules and construction - Filling compounds for filled cables《通信电缆 通用设计规则和制造 填充电缆用填充化合物》.pdf

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1、BRITISH STANDARD BS EN 50290-2-28: 2002 Communication cables Part 2-28: Common design rules and construction Filling compounds for filled cables The European Standard EN 50290-2-28:2002 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 50290-2-28:2002 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 15 April 2002 BSI 15 April 2002 ISBN 0 580 39478 6 National f

3、oreword This British Standard is the official English language version of EN 50290-2- 28:2002. It supersedes BS 7878-8:1997 which is withdrawn. The UK participation in its preparation was entrusted by Technical Committee EPL/46, Cables, wires and waveguides, RF connectors and accessories for communi

4、cation and signalling, to Subcommittee EPL/46/1, 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

5、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 Electronic Catalogue. A British Standard does not purport to include all the necessary provisions o

6、f 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. aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretatio

7、n, 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 document comprises a front cover, an inside front cover, the EN title page, pages 2 to 4, an inside back cover and a back cover

8、. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEAN STANDARD EN 50290-2-28 NORME EUROPENNE EUROPISCHE NORM January 2002 CENELEC European Committee for Electrotechnical Standardization Comi

9、t Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2002 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 50290-2-28:2002 E ICS 33.

10、120.10 Supersedes HD 624.8 S1:1995 + A1:1996 English version Communication cables Part 2-28: Common design rules and construction Filling compounds for filled cables Cbles de communication Partie 2-28: Rgles de conception communes et construction Matires de remplissage pour cbles remplis Kommunikati

11、onskabel Teil 2-28: Gemeinsame Regeln fr Entwicklung und Konstruktion - Petrolat-Fllmasse fr gefllte Kabel This European Standard was approved by CENELEC on 2001-11-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this Europe

12、an 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 member. This European Standard exists in three official versions (Engli

13、sh, 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. CENELEC members are the national electrotechnical committees of Austria, B

14、elgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EN 50290-2-28:2002 2 Foreword This European Standard was prepared by a joint working group of the Technical Comm

15、ittees CENELEC TC 46X, Communication cables, and CENELEC TC 86A, Optical fibres and optical fibre cables. The text of the draft was submitted to the Unique Acceptance Procedure and was approved by CENELEC as EN 50290-2-28 on 2001-11-01. This European Standard supersedes HD 624.8 S1:1995 + A1:1996. T

16、he 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) 2002-08-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2004-08-01 This Europe

17、an 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 50290-2-28:2002 1 Scope This Part 2-28 of EN 50290 gives specific requirements for filling compounds for filled cables used in communication cabl

18、es. It is to be read in conjunction with Part 2-20 of EN 50290. 2 Normative references 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 her

19、eafter. 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 of the publication referred to applies (including amendments). EN 60811-5-

20、1:1999 Insulating and sheathing materials of electric and optical fibre cables - Common test methods - Part 5: Methods specific to filling compounds - Section 1: Drop point - Separation of oil - Lower temperature brittleness Total acid number - Absence of corrosive components - Permittivity at 23C -

21、 D.C. resistivity at 23 C and 100 C (IEC 60811-5-1:1990, mod.) 3 Requirements In case of specific applications, additional performances could be needed. Relevant test methods and requirements shall be included in the detail specifications of the cables.EN 50290-2-28:2002 4 Table 1 Filling compounds

22、for filled cables (Interstitial filling compounds not intended to be used in contact with optical fibre) Characteristics Test method Unit Grades Type 1 Type 2 1 Drop point EN 60811-5-1 clause 4 C 50 70 70 2 Separation of oil - temperature - duration Result to be obtained, max. EN 60811-5-1 clause 5

23、C h mm 50 2 24 5 50 2 24 5 3 Low temperature brittleness 1) - temperature - duration Result to be obtained number of cracks, max. EN 60811-5-1 clause 6 C h - 10 1 2 F 20 - 10 1 2 F 20 4 Total acid number 2) Result to be obtained, max. EN 60811-5-1 clause 7 mgKOH/g 0,5 0,5 5 Absence of corrosive comp

24、onents EN 60811-5-1 clause 8 No corrosion No corrosion 6 Permittivity 3) - frequency Result to be obtained, max. EN 60811-5-1 clause 9 kHz 1 2,3 1 2,3 7 DC Resistivity 3) - test voltage Result to be obtained, min. at 100 C at 23 C EN 60811-5-1 clause 10 V .m .m 100/500 10 8 10 11 100/500 10 8 10 11

25、1) The low temperature brittleness test is not required for type 2 compounds having a drop point 80 C. 2) For filling compounds with improved thixotropic, swelling or electrical properties, higher values are permissible. 3) These requirements are only applicable to interstitial filling compounds use

26、d in cables including copper elements.blankBS EN 50290-2-28: 2002 BSI 389 Chiswick High Road London W4 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

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