1、BRITISH STANDARD Coaxial cables used in cabled distribution networks Part 5. Sectional specification for indoor drop cables for use in networks operating at frequencies between 5 MHz and 2150 MHz BS EN 50117-5 : 1997 The European Standard EN 50117-5 : 1997 has the status of a British standard ICs 33
2、.120.10 SI PERMISS - STD-BSI BS EN 50117-5-ENGL 1777 H 1b24bb9 Ob230bA 757 IM BS EN 50117-5 : 1997 This British Standard, having been prepared under the direction of the Electrotechnid Sector Board, was published under the authority of the Standards Board and comes into effect on 15 July 1997 O BSI
3、1997 Committees responsible for this British Standard The prepdon of this British Standard was entrusted by Technical Committee EPIJ46, Cables, Wires, waveguides, R.E connectors, and accessories for communication and signalling, to Subcommittee EPIJ46/1, Communication cables, upon which the followin
4、g bodies were represented AEA Technology British Approvals Service for Cables British Cable Makers Confederation British Telecommunications plc ERA Technology Federation of the Electronics Industry London Underground National Supervisiig Inspectorate (UK NSI) Society of Cable Television Engineers Am
5、endments issued since publication Amd. No. 1 Text affected The following BSI references relate to the work on this standard Committee reference EWW1 Draft for comment 9W205026 DC I l - ISBN O 680 27927 8 STD-BSI BS EN 50117-5-ENGL 1997 m Lb24bb9 ObZ30b9 b95 a BS EN 50117-6 : 1997 National foreword T
6、his Part of BS EN 50117 has been prepared by Subcommittee EPUW1, and is the English language version of EN 50117-5 : 1997, published by the European Committee for Electrotechnical Standardization (CENELEC). This British Standard is published under the direction of the Electrotechnical Sector Board w
7、hose Technical Committee EPU46 has the responsibility to: - - aid enquirers to understand the text; present to the responsible internationaUEuropean committee any enquiries on interpretation, or proposals for change, and keep UK interests informed; monitor reiad inkrnationa and European developments
8、 and promulgate them in the UK. - NOTE. International and European Standards, as well as overseas standards, are available from Customer Services, BSI, 389 Chiswick High Road, London W4 4AL. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of page
9、s This document comprises a front cover, an inside front cover, pages i and ii, the EN titie page, pages 2 to 8, an inside back cover and a back cover. O BSI 1997 i EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 501 17-5 April 1997 ICs 33.120.10 Descriptors: Indoor drop coaxial cables, cabled
10、networks up to 21 50 MHz English version Coaxial cables used in cabled distribution networks Part 5: Sectional specification for indoor drop cables for use in networks operating at frequencies between 5 MHz and 2150 MHz Cbles coaxiaux de raccordement pour rseaux cbls Partie 5: Spcification intermdia
11、ire pour cbles usage intrieur de rseaux fonctionnant une frquence comprise entre 5 MHz et 2150 MHt Koaxialkabel fr Kabelverteilanlagen Teil 5: Rahmenspezifikation fr Hausinstallationskabel fr Anlagen fr Frequenzen von 5 MHz bis 21 50 MHz This European Standard was approved by CENELEC on 1996-1 2-09.
12、 CENELEC members are bound to comply with the CENICENELEC 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 bibliographicat references concerning such national standards may be obtained
13、 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 and notified to the Central
14、Secretariat has the same status 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. CE
15、NELEC European Committee for Elecvotechnical Standardization Comit Europeen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 1997 CENELEC - All rights of exploitation in any form and by any means reserved wo
16、rldwide for CENELEC members. Ref. No. EN 501 17-5:1997 E STD*BSI BS EN 50117-5-ENGL 1777 m 162ibbq Ob23071 243 m Page 2 EN 50117-5 : 1997 Foreword This European Standard was prepared by SC 46XA, Coaxial cables, of Technical Committee CENELEC TC 46X, Communication cables. The text of the draft was su
17、bmitted to the Unique Acceptance Procedure and was approved by CENELEC as EN 501 17-5 on 1996-1 2-09. 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) 1997-1 2-01 - latest da
18、te by which the national standards conflicting with the EN have to be withdrawn (daw) 1997-1 2-01 STD-BSI BS EN 50117-5-ENGL 1777 = Lb24bb7 b23072 LAT Page 3 EN 50117-6 : 1997 SECTIONAL SPECIFICATION FOR INDOOR DROP CABLE6 FOR USE IN NETWORKS OPERATING AT FREOUENCIES BETWEEN 5 MHZ AND 2150 MHZ 1. Sc
19、ope This Sectional Specification is intended to be used in conjunction with Generic Specification EN 50117 for Coaxial Cables for use in Cabled Distribution Systems. This Sectional Specification applies to drop cables for indoor applications in networks (e.g. SMATV) whose frequency of operation is w
20、ithin the range 5 MHz - 2150 MHz. The purpose of the standard is to specify values and preferential characteristics of the cables, and to identify the applicable tests from the Generic Specification. Reference is made to suitable schemes for Quality Assessment. The numbering of the clauses is the sa
21、me as in the Generic Specification. All the clauses from the generic are applicable unless otherwise stated in this sectional specification. Any variations from the generic specification are also detailed in this specification. 2. Reference Standards EN 50117 Generic Specification for Coaxial Cables
22、 used in Cabled Distribution Networks. 3. Definitions Terminology, units of measure, and symbols, are the same as in the Generic Specification. 4. Materials and Cable Construction 4.3 Dielectric Unless otherwise specified, nominal cable diameter over the dielectric- should preferably be selected fro
23、m the following table; 2,9 mm 3,7 mm 4,8 mm 7,2 mm 4.4 Outer conductor or Screen The braid angle according to 3.2.2.1 shall be between 15“ and 45O. The coverage factor according to 3.2.2.4 shall be greater than or equal to 65%, or, when the cable is provided with a metal foil, greater than or equal
24、to 25%. These values are also valid for cables with two bidirectional layers of helically wound wires. Page 4 EN 60117-6 : 1997 4.5 Sheath The sheath of cables covered by this Sectional Specification shall be in PVC, or flame retardant materials, which may include halogen free materials. 6. Identifi
25、cation Markincr and Labellinq 6.2 Sheath Markinq Cables shall be marked on the outer sheath with (i) Cable type (ii) Supplier identification at least once per metre. Additional marking is permissible provided (i) and (ii) above are clearly identifiable. Sheath marking shall not be easily removable (
26、preferably via the use of embossing or ink). 9. Materials and Cable Construction Tests 9.4 Ovalitv Not applicable 9.6 Tensile Strensth and Elonsation after Break for Metals Applicable only for copper inner conductors. 9.7 Tensile Strenath and Elonsation at Break for Metals Applicable only for copper
27、 clad steel inner conductors. 9.8 Torsion Test for Comer Clad Metals Applicable only for copper clad steel inner conductors. 9.9 Tensile Strenath and Elonsation for Plastics Applicable on the outer sheath of the cable. Reauirements Plastic materials used in the construction of these cables shall mee
28、t the requirements of HD624 as follows; PVC sheathing compounds HD624.2 Flame retardant compounds HD624.6 Halogen free flame retardant compounds HD624.7 STD-BSI BS EN 50117-5-ENGL 1777 9 lb2qbb7 b23074 “52 Page 6 EN 60117-5 : 1997 10. Test for Mechanical and Thermal Characteristics 10.1 Adhesion of
29、Dielectric The test shall be performed to determine the value of the adhesion of the dielectric to the inner conductor. The application of this test on semi air spaced cables is under consideration. The adhesion of the dielectric to the inner conductor, Fa, shall be given in MPa by the following: Fa
30、 = F/(pi*d*l) where Fa is in MPa F is the strip force in Newtons d is the diameter of the inner conductor in mm 1 is the length of the sample in mm Reauirementc The maximum value shall be 1,O Mpa. The minimum value shall be 0,l Mpa. Where the diameter of the inner conductor is smaller than 1.6 30 -
31、470 MHz 470 - 1000 MHz 1000 - 2150 MHZ 75 dB 75 dB 65 dB (ffs) I I 11.11 Transfer Inmedance Under consideration. 12. pualitv Assessment Procedures Under consideration. STD*BSI BS EN 50LL7-5-ENGL 1997 Lb2ilbb9 Ob23077 7bL BS EN 50117-5 : 1997 BSI 389 Chiswick High Road London w4 4AL BSI - British Sta
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