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1、BRITISH STANDARD BS EN 50169:1996 Sectional specification for backbone cables, riser and campus, with a common overall screen for use in digital communication The European Standard EN 50169:1994 has the status of a British Standard ICS 29.060.20 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06
2、 07:07:20 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 50169:1996 This British Standard, having been prepared under the direction of the Electrotechnical Sector Board, was published under the authority of the Standards Board and comes into effect on 15 February 1996 BSI 07-1999 The following BSI
3、 references relate to the work on this standard: Committee reference EPL/46/1 Special announcement in BSI News October 1995 ISBN 0 580 24891 7 Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee EPL/46, Cables, wires and wave
4、guides, RF connectors and accessories for communication and signalling, to Subcommitte, EPL/46/1, Communication cables, upon which the following bodies were represented: AEA Technology British Approvals Service for Cables British Broadcasting Corporation British Cable Makers Confederation British Ra
5、ilways Board British Telecommunications plc Cable Communications Association Confederation of Aerial Industries ERA Technology Ltd. Federation of the Electronics Industry London Underground Ltd. Ministry of Defence Society of Cable Television Engineers Amendments issued since publication Amd. No.Dat
6、eComments Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 07:07:20 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 50169:1996 BSI 07-1999i Contents Page Committees responsible Inside front cover National foreword ii Foreword 2 Text of EN 501693 List of references Inside back cover Licensed C
7、opy: sheffieldun sheffieldun, na, Mon Nov 06 07:07:20 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 50169:1996 ii BSI 07-1999 National foreword This British Standard has been prepared by Subcommittee EPL/46/1 and is the English language version of EN 50169:1994, Sectional specification for backbo
8、ne cables, riser and campus, with a common overall screen for use in digital communication, published by the European Committee for Electrotechnical Standardization (CENELEC). A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are re
9、sponsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Cross-references Publication referred toCorresponding British Standard HD 602 S1:1992BS 6425 Test on gases evolved during the combustion of materials from cables Par
10、t 2:1993 Determination of degree of acidity (corrositivity) of gases by measuring pH and conductivity BS 7622 Measurement of smoke density of electric cables burning under defined conditions HD 606.1 S1:1992Part 1:1993 Test apparatus HD 606.2 S1:1992Part 2:1993 Test procedure and requirements HD 608
11、 S1:1992BS 7630:1993 Generic specification for symmetric pair/quad and multicore cables for digital communication Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 10, an inside back cover and a back cover. This standard has
12、been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 07:07:20 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE
13、 NORM EN 50169 October 1994 ICS 29.060.20 Descriptors: Backbone cables, campus and riser, digital communication English version Sectional specification for backbone cables, riser and campus, with a common overall screen for use in digital communication Spcification intermdiaire de cbles avec cran ex
14、trieur pour transmissions numriques destins aux cblages, verticaux et campus Bauart-Spezifikation fr Verteilerkabel (Gebude-Verbindungskabel und Steigekabel) mit gemeinsamen Schirm fr digitale Kommunikation This European Standard was approved by CENELEC on 1994-07-05. CENELEC members are bound to co
15、mply 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 national standards may be obtained on application to the Central S
16、ecretariat 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 and notified to the Central Secretariat has the same status
17、as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CENELEC European Committee for Ele
18、ctrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1994 Copyright reserved to CENELEC members Ref. No. EN 50169:1994 E Licensed Copy: sheffieldun sheffieldun, na, Mon
19、Nov 06 07:07:20 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 50169:1994 BSI 07-1999 2 Foreword This European Standard was prepared by CENELEC Subcommittee SC 46XC, Multicore, Multipair and Quad Data communication cables. It was submitted to the CENELEC Unique Acceptance Procedure (UAP) in November
20、1993 and was approved by CENELEC as EN 50169 on 1994-07-05. The following dates were fixed: Wherever this standard refers to Generic Specification, HD 608 S1:1992 is meant. NOTEThis HD 608 will be updated into a European Standard. Contents Page Foreword 2 1 Guide to use3 1.1 Scope3 1.2 Introduction3
21、 1.3 Installation considerations3 1.4 Object3 2 Definitions and requirements3 2.1 General3 2.2 Reference publications3 2.3 Definitions4 2.4 Materials and cable construction4 2.4.1General4 2.4.2Cable construction4 2.4.3Conductor4 2.4.4Insulation4 2.4.5Cable element4 2.4.6Screening of the cable elemen
22、t4 2.4.7Colour code of insulation4 2.4.8Cable make-up4 2.4.9Screening of the cable core5 2.4.10 Sheath5 2.4.11 Colour of sheath5 2.4.12 Identification5 2.4.13 Finished cable5 2.4.14 Cable overall diameter5 3Characteristics and requirements5 3.1 General 5 3.2Electrical tests5 Page 3.2.1 Conductor res
23、istance5 3.2.2 Resistance unbalance 5 3.2.3Dielectric strength5 3.2.4Insulation resistance6 3.2.5Mutual capacitance6 3.2.6Capacitance unbalance6 3.2.7Transfer impedance6 3.3Transmission characteristics6 3.3.1Velocity of propagation6 3.3.2Attenuation6 3.3.3Unbalance attentuation6 3.3.4Near-end crosst
24、alk6 3.3.5Far-end crosstalk7 3.3.6Characteristics impedance7 3.3.7Structural Return Loss (SRL)7 3.3.8Longitudinal to Differential Conversion Loss (LCL)7 3.4Mechanical and dimension characteristics and requirements7 3.4.1Dimensional requirements7 3.4.2Elongation at break of conductors7 3.4.3Elongatio
25、n and tensile strength at break of the insulation7 3.4.4Elongation and tensile strength at break of sheath7 3.4.5Crushing of the cable7 3.4.6Impact of the cable7 3.4.7Repeated bending of the cable7 3.4.8Tensile performance of the cable7 3.5Environmental characteristics7 3.5.1Shrinkage of insulation7
26、 3.5.2Wrapping of insulation after thermal ageing8 3.5.3Bending of insulation at low temperature8 3.5.4Elongation and tensile strength at break of the sheath after ageing8 3.5.5Sheath pressure test at high temperature8 3.5.6Cold bend of the cable8 3.5.7Heat shock8 3.5.9Flame propagation characterist
27、ics of bunched cables 8 3.5.10 Acid gas evolution8 3.5.11 Smoke generation8 3.5.12 Toxic gas emission8 4Quality assessment procedures8 Annex A (informative) Attenuation and NEXT9 latest date of publication of an identical national standard(dop) 1995-07-15 latest date of withdrawal of conflicting nat
28、ional standards(dow) 1995-07-15 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 07:07:20 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 50169:1994 BSI 07-19993 1 Guide to use 1.1 Scope This standard refers to HD 608 S1:1992, Generic specification for symmetrical pair/quad or multicore cables f
29、or digital communications. It covers individually screened or unscreened pair(s) or quad(s) in cables for vertical shafts or vertically between floors (riser backbone cables) or in horizontal between buildings (campus backbone cables). In the same cable both screened and unscreened elements may be u
30、sed. When installed vertically extra strength requirements may be applicable and are defined in the detail specifications. The cables shall be provided with a common overall screen. These cables are suitable for different communication systems to which reference is made in the detail specifications.
31、 The cables covered by this specification are intended to operate with voltages and currents normally adopted for communication systems. These cables shall not be connected to low impedance sources, for example, the public mains electricity supply. 1.2 Introduction See Generic Specification. 1.3 Ins
32、tallation considerations See Generic Specification. 1.4 Object The cables specified in this standard shall meet the requirements of the Generic Specification. This sectional specification may be supplemented with specific specifications given additional information if required by a particular applic
33、ation (e.g. regarding safety and reliability conditions.). 2 Definitions and requirements 2.1 General See Generic Specification. 2.2 Reference publications Add to 2.2.1 of the Generic Specification: HD 602, Test on gases evolved during the combustion of materials from cables Part 2: Determination of
34、 degree of acidity (corrosivity) of gases by measuring pH and conductivity (IEC 754-2). HD 606.1, Measurement of smoke density of electric cables under defined conditions Part 1: Test apparatus (IEC 1034-1 modified) HD 606.2-2, Test procedures and requirements (IEC 1034-2 modified). HD 624, Material
35、s used in communication cables. HD 623.3-3, PE insulation. HD 624.4-4, PE sheathing (in preparation). HD 624.5-5, Polypropylene insulation compounds (in preparation). HD 624.6-6, Halogen free flame-retardant insulation compounds (in preparation). HD 624.7-7, Halogen free flame-retardant thermoplasti
36、c sheathing compound. IEC 96-1, Radio frequency cables Part 1: General requirements and measuring methods. IEC 189, Low-frequency cables and wires with PVC insulation and PVC sheath. IEC 344, Guide to the calculation of resistance of plain and coated copper conductors of low-frequency cables and wir
37、es. Add to 2.2.2 of the Generic Specification: ITU G 117, Transmission aspects of unbalance about earth (definitions and methods). Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 07:07:20 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 50169:1994 4 BSI 07-1999 2.3 Definitions See Generic Specif
38、ication. 2.4 Materials and cable construction 2.4.1 General See Generic Specification. 2.4.2 Cable construction See Generic Specification. 2.4.3 Conductor The conductor shall consist of annealed copper. The conductor shall be solid. The nominal diameter shall be between 0,5 mm and 0,8 mm. The conduc
39、tor shall be plain or metal coated. 2.4.4 Insulation The conductor shall be insulated with a suitable thermoplastic material meeting the requirements specified in the relevant detail specification. Materials are: Polyolefin (HD 624.3 and HD 624.5) Low smoke zero halogen thermoplastic material (HD 62
40、4.6) The insulation may be solid or cellular with or without a solid dielectric skin. The insulation shall be continuous and shall have a thickness such that the completed cable meets the electrical requirements specified in the relevant detail specifications. The maximum overall diameter of the ins
41、ulated conductor and conductor eccentricity shall be compatible with the method of conductor connection as specified in the relevant detail specification. 2.4.5 Cable element The cable element shall be a pair or a quad. The maximum length of lay in the finished cable shall not exceed 150 mm. NOTEFor
42、ming the element with a variable lay, for example with SZ stranding, can lead to the infrequent but acceptable occurrence of the maximum lay being longer than specified. 2.4.6 Screening of the cable element When required in the relevant specification a screen for the cabling element shall be provide
43、d. The screen shall be in accordance with subclause 2.4.6 of the Generic Specification. Where a copper braid is used is shall have a minimum filling factor of 0,41 (65 % coverage). Where a tape and braid screen is used the minimum filling factor of the braid shall be 0,16 (30 % coverage). The fillin
44、g factor is defined in the Generic Specification. 2.4.7 Colour code of insulation The colour code shall be indicated in the relevant detail specification. The colours shall be readily identifiable and the shade of colour shall correspond reasonably with the standard colours shown in HD 402 (IEC 304)
45、. 2.4.8 Cable make-up The cable elements shall be assembled into a core or into units which are further assembled to form the cable core. Each unit shall be helically wrapped with a colour coded, non-hydroscopic binder. The colour code shall be indicated in the relevant detail specification. When re
46、quired in the relevant detail specification a screen for the unit shall be provided. The screen shall be in accordance with subclause 2.4.9 of Generic Specification. The core of the cable may be wrapped with a protective layer of non-hydroscopic material. Licensed Copy: sheffieldun sheffieldun, na,
47、Mon Nov 06 07:07:20 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 50169:1994 BSI 07-19995 2.4.9 Screening of the cable core The screen shall be in accordance with subclause 2.4.9 of the Generic Specification. Where a copper braid is used it shall have a minimum filling factor of 0,41 (65 % coverage)
48、. Where a tape and braid screen is used the minimum filling factor of the braid shall be 0,16 (30 % coverage). The filling factor is defined in the Generic Specification. 2.4.10 Sheath The sheath material shall consist of a low smoke zero halogen thermoplastic material meeting the requirements speci
49、fied in the relevant specification. Materials are: Polyolefin for campus backbone cables (HD 624.4) Low smoke zero halogen thermoplastic material for building backbone cables (HD 624.7) The sheath shall be continuous having a thickness as uniform as possible and with a value indicated in the relevant detail specification. A non-metallic rip cord may be provided. 2.4.11 Colour of sheath See Generic Specification. 2.4.12 Identification Colour code preferable in accordance with IEC 189. 2.4.13 Finished cable See Generic Specification. 2.4.14 Cabl