1、BRITISH STANDARD BS EN 50117-2-4:2004+A2:2013Coaxial cables Part 2-4: Sectional specification for cables used in cabled distribution networkssystems operating at 5 MHz 0+ICS 33.120.10nullnull nullnullnullnullnullnullnull nullnullnullnullnullnullnull nullnullnull nullnullnullnullnullnullnullnullnulln
2、ull nullnullnullnullnullnull nullnull nullnullnullnullnullnullnullnullnull nullnull nullnullnullnullnullnullnullnullnull nullnullnull Indoor drop cables for National forewordThis British Standard is the UK implementation of EN 50117-2-4:2004+A2:2013. It supersedes BS EN 50117-2-4:2004+A1:2008, which
3、 is withdrawn.The start and finish of text introduced or altered by amendment is indicated in the text by tags. Tags indicating changes to CENELEC text carry the number of the CENELEC amendment. For example, text altered by CENELEC amendment A1 is indicated by .The UK participation in its preparatio
4、n 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 obtained on request to its secretary.This publication does not purport to include all
5、the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.BS EN 50117-2-4:2004+A2:2013This British Standard waspublished under the authorityof the Standards Policy andStrategy Committeeon
6、 17 December 2004 The British Standards Institution 2013. Published by BSI Standards Limited 2013Amendments/corrigenda issued since publicationDate Comments 30 April 2009 Implementation of CENELEC amendment A1:200830 September 2013 Implementation of CENELEC amendment A2:2013ISBN 978 0 580 77907 7EUR
7、OPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2004 CENELEC - All rights of expl
8、oitation in any form and by any means reserved worldwide for CENELEC members.Ref. No. EN 50117-2-4:2004 EICS 33.120.10 English version Coaxial cables Part 2-4: Sectional specification for cables used in cabled distribution networks Indoor drop cables for systems operating at 5 MHz - 3 000 MHzCbles c
9、oaxiauxPartie 2-4: Spcification intermdiairepour les cbles utiliss dans les rseauxde distribution cbls Cbles de raccordement usage intrieur pour systmes fonctionnant 5 MHz - 3 000 MHzKoaxialkabelTeil 2-4: Rahmenspezifikation fr Kabelfr Kabelverteilanlagen -Hausintallationskabel im Bereich von 5 MHz
10、- 3 000 MHzThis European Standard was approved by CENELEC on 2004-09-01. CENELEC members arebound to complywith 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 bibliog
11、raphical 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 otherlanguage made by translation under the responsibility o
12、f 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, Cyprus, CzechRepublic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland
13、, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 50117-2-4:2004+A2August 2013Foreword This European Standard wasprepared by SC46XA, Coaxial cab les, of Technical Committee CENELECTC 46
14、X, Communication cables.The text of the draft was submitted to the formal vote and was approved by CENELEC as EN 50117-2-4 on 2004-09-01. 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 endorse
15、ment (dop) 2005-09-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow)2007-09-01 _ Foreword to amendment A1This amendment to the European Standard EN50117-2-4:2004 was prepared by SC 46XA, Coaxialcables, of Technical Committee CENELEC TC 46X, Communicati
16、on cables.The text of the draft was submitted to the Unique Acceptance Procedure and was approved by CENELECas amendment A1 to EN 50117-2-4:2004 on 2007-12-01.The following dates were fixed: latest date bywhich the amendment has to be implemented at nationallevel by publication of an identicalnation
17、al standard or byendorsement (dop) 2008-12-01 latest date bywhich the national standards conflicting with the amendment have to be withdrawn (dow) 2010-12-01 _ Foreword to amendment A2This document (EN 50117-2-4:2004/A2:2013) has been prepared by CLC/SC 46XA “Coaxial cables“ of CLC/TC 46X “Communica
18、tion cables“. The following dates are fixed: latest date by which this document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2014-07-01 latest date by which the national standards conflicting with this document have to be withdrawn
19、(dow) 2016-07-01 Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. This standard covers the Principle Elements of the Safety Objectives
20、for Electrical Equipment Designed for Use within Certain Voltage Limits (LVD - 2006/95/EC). BS EN 50117-2-4:2004+A2:2013 EN 50117-2-4:2004+A2:2013 (E)Page 2Contents 1Scope 42Normative references . 43Definitions. 44Requirements for cable construction. 54.1 General.54.2 Inner conductor.54.3 Dielectric
21、.54.4 Outer conductor or screen.54.5 Filling compounds54.6 Moisture barriers.54.7 Wrapping layers 54.8 Sheath.54.9 Metallic protection .64.10 Cable integral suspension strand (Messenger wire)64.11 Oversheath64.12 Fauna proofing64.13 Chemical and/or environmental proofing64.14 Cable identification64.
22、14.1 Sheath marking .64.14.2 Labelling65Tests for completed cables 75.1 Electrical tests.75.1.1 Low-frequency and D.C. electrical measurements75.1.2 High-frequency electrical and transmission measurements.75.2 Mechanical tests95.3 Environmental tests.115.4 Fire performance test methods .11Table 1 Lo
23、w-frequency and D.C. electrical measurements7Table 2 High-frequency electrical and transmission measurements.7Table 3 Mechanical tests9Table 4 Environmental tests.116Cable types 12Table 6 Drop cable types Dimensions and ratings. 1 2BS EN 50117-2-4:2004+A2:2013 EN 50117-2-4:2004+A2:2013 (E)Page 3Tabl
24、e deleted# $1 Scope This European Standard relates to EN 50117-1 and should be read in conjunction with this genericspecification.This specification applies to indoor dr op cables for use in cabled distribution systemsoperating at temperature between -40 C and +70 C 1) and at frequencies between 5 M
25、Hz and 3 000 MHz and complying with the requirements of EN 50083. The purpose of this European Standard is to specify the applicable test methods and requirements forthe electrical, mechanical, environmental and fire performance of the cables. 2 Normativereferences The following referenced documents
26、 are indispensable for the application of this document. For dated references, only the edition cited applies. For undated refer ences, the latest edition of the referenced document (including any amendments) applies.EN 50083 series Cable networks for television signals, sound signals and interactiv
27、e servicesEN 50117-1 Coaxial cables Part 1: Generic specification EN 50289-1-6 Communication cables Specifications for test methods Part 1-6: Electrical testmethods Electromagnetic performance EN 50289-3-9 Communication cables Specifications for test methods Part 3-9: Mechanical test methods Bending
28、 testsEN 50290-1-2 2) Communication cables Part 1-2: DefinitionsEN 50290-2-22 Communication cables Part 2-24: Common design rules and construction PVC sheathing compoundsEN 50290-2-23 Communication cables Part 2-23: Common design rules and construction PE insulation EN 50290-2-25 Communication cable
29、s Part 2-25: Common design rules and construction Polypropylene insulation compoundsEN 50290-2-27 Communication cables Part 2-27: Common design rules and construction Halogen free flame retardant thermoplastic sheathing compoundsEN 50290-4-1 Communication cables Part 4-1: General considerations for
30、the use of cables Environmental conditions and safety aspectsEN 62153-1-1 Metallic telecommunication cable test methods Part 1-1: Electrical Measurement of the pulse/step return loss in the frequency domain using the Inverse Discrete Fourier Transformation (IDFT) (IEC 62153-1-1)IEC 61196-1-115 2) Co
31、axial communication cables Part 1-115: Electrical test methods Test forpulse return loss (regularity of impedance)3 Definitions For the purposes of this European Standard, the definitions of EN 50290-1-2 and EN 50117-1 apply.1) This value is valid for applications without ampacity only.2) At draft s
32、tage.The definition of a drop coaxial cable is one of use or intended use and application within the networkrather than by specific constructional requirements of the cable itself.3.1 drop cablecoaxial cable which is used to connect froma) subscriber tap or a directional coupler to a systemoutlet,b)
33、 subscriber tap to a subscriber splitter,c) subscriber splitter to a system outlet“!BS EN 50117-2-4:2004+A2:2013 EN 50117-2-4:2004+A2:2013 (E)Page 4EN 50117-1:2002/A2:2013 Coaxial cables Part 1: Generic specification# $4 Requirements for cable construction 4.1 General Designing the cable, considerat
34、ion should be paid to the maximum admissible current stated in the detail specification. It is assumed that the raise if temperature of the inner conductor when submitted to the maximumcurrent under nominal ambient conditions does not affect the mechanical and electrical properties of the cable (det
35、ails are under study).4.2 InnerconductorThe conductor shall meet the requirements of Subclause 4.2 of EN 50117-1, and shall be solid or tube. Individual wires can be plain or metal coated. Dimensions shall be in accordance with the detailed specification. There shall be no joint made subsequent to t
36、he last drawing operation.4.3 Dielectric The dielectric material(s) shall be in accordance with Subclause 4.3 of EN 50117-1 and shall consist ofpolyolefin materials,with EN 50290-2-23 (polyethylene), EN 50290-2-25 (polypropylene) or any relevant part of EN 50290-2-XX. Dimensions shall be in accordan
37、ce with the detail specification.Unlessotherwise specified, the nominal diameter over the dielectric should be one of the preferred values, namely 2,9 mm, 3,7 mm, 4,8 mm and 7,2 mm.4.4Outer conductor or screen The construction and material of the outer conductor and/or screen shall be meet the requi
38、rements ofSubclause 4.4 itemsb), c), f) or g) of EN 50117-1. Where option b) is used, a double braid layer isrequired. Forbraid constructions or helically wound wires, the braid angle shall be between 15 and 45. The coverage factor shall be greater than or equal to 65 %, or, when the cable is provid
39、ed with a metal foil, greater than or equal to 25 %. These values are also valid for cables with two bi-directional layers ofhelically wound wires.Dimensions shall be in accordance with the detailed specification.4.5 Filling compounds Not applicable 4.6 Moisture barriers Not applicable 4.7 Wrapping
40、layersNot applicable 4.8 SheathSheath material(s) shall meet the requirements of the EN 50290-2-22 for PVC sheaths or EN 50290-2-27 for halogen free flame retardant materials.The sheath shall also meet the requirements of Subclause 4.8 of EN 50117-1. BS EN 50117-2-4:2004+A2:2013 EN 50117-2-4:2004+A2
41、:2013 (E)Page 5Dimensions shall be in accordance with the detailed specification.4.9 Metallic protection Not applicable 4.10 Cable integral suspension strand (Messenger wire)Not applicable 4.11 OversheathNot applicable 4.12 Fauna proofing Not applicable 4.13 Chemical and/or environmental proofing No
42、t applicable 4.14 Cable identificationCable identification shall be in accordance with Subclause 4.14 of EN 50117-1. 4.14.1 SheathmarkingSheath marking shall be achieved as a non-degradable print containing the following minimuminformation: designation of the cable; attenuation value (in dB/100 m at
43、 800 MHz, rounded); screening class; Euro-class; name of supplier.EXAMPLEEN 50117-2-4 21 Class B Euro-class C 4.14.2 LabellingUnless otherwise specified in the detail specification drums or coils shall be provided with a label with a non-degradable print containing the following minimum information:
44、 designation of the cable; attenuation value (in dB/100 m at 800 MHz, rounded); screening class; Euro-class; name of supplier; batch part number; length of cable. EXAMPLEEN 50117-2-4 21 Class B Euro-class C 03/04 543mNOTE The Construction ProductsDirective (CPD) will define classes for the fire perf
45、ormance of cables. As long as the CPDis under consideration and fire performance classes (Euroclasses) are not defined, sheath marking with Euroclass is not required. !“BS EN 50117-2-4:2004+A2:2013 EN 50117-2-4:2004+A2:2013 (E)Page 65 Tests for completed cables When tested in accordance with the req
46、uirements of EN 50117-1, the r equirements given below shall apply.5.1 Electrical tests 5.1.1 Low-frequency and D.C. electrical measurements Table 1 Low-frequency and D.C. electrical measurements EN 50117-1 Subclause nParameter Requirements/Remarks 5.1.1.1 Conductor resistance Applicable, value in a
47、ccordance with the detail specification 5.1.1.2 Dielectric strength 2 kV D.C. or 1,5 kV A.C. for 1 min 5.1.1.3 Insulation resistance 10 4 M x km5.1.1.4 Mutual capacitance When required, in accordance with the detail specification 5.1.1.5 Voltage test of sheath 2,5 kV A.C. or 3,75 kV D.C., unless oth
48、erwise specified in the relevant detail specification. Test in accordance with EN 50289-1-X a5.1.1.6 Discharge (corona) testNot applicable 5.1.1.7 Voltage proof Not applicable 5.1.1.8 Power rating Not applicable a Test procedure is under consideration by CLC/SC 46XA.5.1.2 High-frequency electrical a
49、nd transmission measurements Table 2 High-frequency electrical and transmission measurements EN 50117-1 Subclause nParameter Requirements/Remarks 5.1.2.1 Velocity of propagation May be specified for information purposes only in the detail specification. 5.1.2.2 Longitudinal attenuation (operational attenuation)The cable shall comply at any frequency with the formula cfbfa + . In case of copper clad conductor mate
