1、Multi-element metallic cables used in analogue and digital communications and controlPart 12-1: Sectional specification for screened cables characterised from 1 MHz up to 2 000 MHz - Horizontal and building backbone cablesBS EN 50288121:2017BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.i
2、ndd 1 15/05/2013 15:06EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORMEN 50288-12-1 August 2017ICS 33.120.10English VersionMulti-element metallic cables used in analogue and digitalcommunications and control - Part 12-1: Sectional specification for screened cables characterised from 1 MHz up to 2 0
3、00 MHz -Horizontal and building backbone cables Cbles mtalliques lments multiples utiliss pour lestransmissions et les commandes analogiques etnumriques - Partie 2-1: Spcification intermdiaire pour lescbles crants caractriss de 1 MHz 2 000 MHz - Cbles horizontaux et verticaux de btimentMehradrige me
4、tallische Daten- und Kontrollkabel fr analoge und digitale bertragung - Teil 12-1:Rahmenspezifikation fr geschirmte Kabel fr Frequenzen von 1 MHz bis 2 000 MHz - Kabel fr Horizontal- und SteigbereichThis European Standard was approved by CENELEC on 2017-05-30. CENELEC members are bound to comply wit
5、h the CEN/CENELECInternal 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 CEN-CENELEC Managem
6、ent Centre 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 CEN-CENELEC Management Centre has thesame
7、 status as the official versions.CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,Lithua
8、nia, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden,Switzerland, Turkey and the United Kingdom.European Committee for Electrotechnical StandardizationComit Europen de Normalisation ElectrotechniqueEuropisches Komitee fr Elektrotechnis
9、che Normung CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.Ref. No. EN 50288-12-1:2017 ENational forewordThis British Standard is the UK implementation of EN 50288-12-1:2017.
10、The UK participation in its preparation 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 public
11、ation does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2017 Published by BSI Standards Limited 2017ISBN 978 0 580 91856 8ICS 33.120.10Compliance with a British Standard cannot confer immunity
12、from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 September 2017.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 50288121:2017EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN
13、50288-12-1 August 2017 ICS 33.120.10 English Version Multi-element metallic cables used in analogue and digital communications and control - Part 12-1: Sectional specification for screened cables characterised from 1 MHz up to 2 000 MHz -Horizontal and building backbone cables Cbles mtalliques lment
14、s multiples utiliss pour les transmissions et les commandes analogiques et numriques - Partie 2-1: Spcification intermdiaire pour lescbles crants caractriss de 1 MHz 2 000 MHz - Cbles horizontaux et verticaux de btiment Mehradrige metallische Daten- und Kontrollkabel fr analoge und digitale bertragu
15、ng - Teil 12-1: Rahmenspezifikation fr geschirmte Kabel fr Frequenzen von 1 MHz bis 2 000 MHz - Kabel fr Horizontal- und Steigbereich This European Standard was approved by CENELEC on 2017-05-30. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the condit
16、ions 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 CEN-CENELEC Management Centre or to any CENELEC member. This European Standard exis
17、ts 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 CEN-CENELEC Management Centre has the same status as the official versions. CENELEC members are the nati
18、onal electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Por
19、tugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix
20、 17, B-1000 Brussels 2017 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN 50288-12-1:2017 EBS EN 50288121:2017EN 50288-12-1:2017 2 Contents Page European foreword . 3 1 Scope 4 2 Normative references 4 3 Terms, definitions, symbols
21、and abbreviations . 4 4 Cable construction 4 4.1 Conductor 4 4.2 Insulation 4 4.3 Cabling elements . 4 4.4 Identification of cabling elements 4 4.5 Screening of cabling elements . 5 4.6 Cable make-up . 5 4.7 Filling compound . 5 4.8 Interstitial fillers . 5 4.9 Screening of the cable core 5 4.10 Moi
22、sture barriers . 5 4.11 Wrapping layers . 5 4.12 Sheath . 5 5 Test methods and requirements for completed cables . 5 5.1 General . 5 5.2 Electrical tests . 6 5.2.1 Low-frequency and d.c. electrical measurements 6 5.2.2 High-frequency electrical and transmission measurements . 6 5.3 Mechanical tests
23、10 5.4 Environmental tests 11 5.5 Fire performance test methods 11 Annex A (normative) Maximum voltage, current and temperature rating for cables used for POE applications (ffs) 12 Annex B (informative) Blank Detail Specification 13 B.1 General . 13 B.2 Document details . 13 B.3 Generic specificatio
24、n EN 50288-1 14 Bibliography 17 Tables Table 1 Low-frequency and d.c. electrical measurements 6 Table 2 High-frequency electrical and transmission measurements . 6 Table 3 Mechanical tests . 10 Table 4 Environmental tests . 11 Table A.1 Maximum recommended voltage, current, current density and condu
25、ctor temperature for cables when used for POE applications . 12 Table B.1 Blank detail specification for symmetrical pair/quad cables for digital communications 14 BS EN 50288121:2017EN 50288-12-1:2017 3 European foreword This document (EN 50288-12-1:2017) has been prepared by WG 2 of CLC/SC 46XC “M
26、ulticore, multipair and quad data communication cables“ of CLC/TC 46X, “Communication 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) 2018-05-30 latest date by
27、which the national standards conflicting with this document have to be withdrawn (dow) 2020-05-30 This document has been prepared under a mandate given to CENELEC by the European Commission and the European Free Trade Association. EN 50288-12-1 is meant to be read in conjunction with EN 50288-1:2013
28、. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights. BS EN 50288121:2017EN 50288-12-1:2017 4 1 Scope EN 50288-12-1 is a sectional specification for
29、screened cables, characterised up to 2 000 MHz, to be used in horizontal and building backbone wiring for information technology, generic-cabling systems. This sectional specification contains the electrical, mechanical, transmission and environmental performance characteristics and requirements of
30、the cables when tested in accordance with the referenced test methods. This sectional specification is to be read in conjunction with EN 50288-1, which contains the essential provisions for its application. The cables covered in this sectional specification are intended to operate with voltages and
31、currents normally encountered in communications systems. These cables are not intended to be used in conjunction with low impedance sources, for example the electrical power supplies of public utility mains. 2 Normative references The following referenced documents are indispensable for the applicat
32、ion of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 50288-1:2013, Multi-element metallic cables used in analogue and digital communication and control - Part 1: Generi
33、c specification EN 50289 (all parts), Communication cables Specifications for test methods EN 50290 (all parts), Communication cables 3 Terms, definitions, symbols and abbreviations For the purposes of this document, the terms and definitions, symbols and abbreviations given in Clause 3 of EN 50288-
34、1:2013 and the following apply. Ex Exogenous (derived or originating externally) 4 Cable construction 4.1 Conductor The conductor shall be solid copper and meet the requirements of 4.1 of EN 50288-1:2013. The conductor shall be plain copper (with or without additional metal coating). The nominal con
35、ductor diameter shall be 0,50 mm and 0,80 mm. NOTE Constructions with copper clad conductors do not meet the requirements. 4.2 Insulation The insulation shall be of a suitable material according to the appropriate part of EN 50290-2. 4.3 Cabling elements The cable element shall be a pair or quad. 4.
36、4 Identification of cabling elements Unless otherwise specified, the colour coding for identification is given in IEC 60189-2 or EN 60708, as appropriate. The colours shall meet the requirements of 4.4 of EN 50288-1:2013. BS EN 50288121:2017EN 50288-12-1:2017 5 4.5 Screening of cabling elements Wher
37、e appropriate, screening of the cabling elements shall be applied in accordance with 4.5 of EN 50288-1:2013. When a braid is used the minimum braid coverage (for mechanical purposes) shall be 60 %. When a foil and braid are used the minimum braid coverage (for mechanical purposes) shall be 30 %. Cov
38、erage is defined in EN 50290-2-1. 4.6 Cable make-up The cable elements shall be laid up in concentric layer(s) or units to form the cable core. 4.7 Filling compound Not applicable. 4.8 Interstitial fillers Where fillers are used they shall meet the requirements of 4.8 of EN 50288-1:2013. 4.9 Screeni
39、ng of the cable core The screening of the cable core shall be applied in accordance with 4.9 of EN 50288-1:2013. When a braid is used the minimum braid coverage (for mechanical purposes) shall be 60 %. When a foil and braid are used, and/or where a foil is used over elements / the core, the minimum
40、braid coverage (for mechanical purposes) shall be 30 %. Coverage is defined in EN 50290-2-1. 4.10 Moisture barriers Not applicable. 4.11 Wrapping layers Where wrapping layers are used they shall be in accordance with 4.11 of EN 50288-1:2013. 4.12 Sheath The sheath shall be of a suitable material acc
41、ording to the appropriate part of EN 50290-2. 5 Test methods and requirements for completed cables 5.1 General The following tables give the tests to be applied, together with the respective limits, in order to demonstrate compliance with this specification. BS EN 50288121:2017EN 50288-12-1:2017 6 5
42、.2 Electrical tests 5.2.1 Low-frequency and d.c. electrical measurements Table 1 Low-frequency and d.c. electrical measurements EN 502881:2013, Clause Parameter Requirement 5.1.1.1 Conductor loop resistance The maximum value shall be 17 /100 m Note: Resistance values for wire sizes are expected to b
43、e: 0,6 mm 13,4 /100 m loop 0,8 mm 7,7 /100 m loop 5.1.1.2 Conductor resistance unbalance 2 % 5.1.1.2.1 Resistance unbalance between pairs 4 % 5.1.1.3 Dielectric strength conductor/conductor and conductor/screen 1,0 kV d.c. or 0,7 kV a.c. for 1 min or 2,5 kV d.c. or 1,7 kV a.c. for 2 s 5.1.1.4 Insula
44、tion resistance 5 000 M.km using (100500) V test voltage 5.1.1.5 Mutual capacitance No requirement specified 5.1.1.6 Capacitance unbalance to earth 1 200 pF/km 5.2.2 High-frequency electrical and transmission measurements High frequency tests in some cases cannot be tested over 100 m, these tests sh
45、ould be made with a 30 m length. Table 2 High-frequency electrical and transmission measurements EN 502881:2013, Clause Parameter Requirement 5.1.2.1 Velocity of propagation h Phase delay 534 + 36/f ns/100 m, 1 MHz f 2 000 MHz 5.1.2.2 Propagation delay difference (skew) 25 ns/100 m at 100 MHz BS EN
46、50288121:2017EN 50288-12-1:2017 7 EN 502881:2013, Clause Parameter Requirement 5.1.2.3 Attenuation bcfg1 4 10 62,5 100 155 200 300 400 600 800 1 000 MHz 2,1 3,8 5,8 14,6 18,5 23,2 26,5 32,7 38,0 47,1 54,9 61,9 dB/100 m 1,0 1,1 1,2 1,3 1,4 1,5 1,6 1,7 1,8 1,9 2,0 GHz 61,9 62,5 68,4 71,4 74,4 77,2 80.
47、0 82,7 85,4 88,0 90,5 dB/100m 1,80 f + 0,005 f + 0,25/f, 1 MHz f 2 000 MHz 5.1.2.5 Near-end Crosstalk (NEXT) ab1 4 10 62,5 100 155 200 300 400 600 800 1 000 MHz 78 78 78 78 75,4 72,5 70,9 68,2 66,4 63,7 61,9 60,4 dB/100 m 1,0 1,1 1,2 1,3 1,4 1,5 1,6 1,7 1,8 1,9 2,0 GHz 60,4 59,8 59,2 58,7 58,2 57,8
48、57,3 59,9 56,6 56,2 55,9 dB/100 m 105,4 15 logf 1 MHz f 2 000 MHz (78 dB max.) 5.1.2.7.1 Power sum Near-end Crosstalk b(PSNEXT) 1 4 10 62,5 100 155 200 300 400 600 800 1 000 MHz 78 78 78 75,5 72,4 69,5 67,9 65,2 63,4 60,7 58,9 57,4 dB/100 m 1,0 1,1 1,2 1,3 1,4 1,5 1,6 1,7 1,8 1,9 2,0 GHz 57,4 56,8 5
49、6,2 55,7 55,2 54,8 54,3 53,9 53,6 53,2 52,9 dB/100 m 102,4 15 logf 1 MHz f 2 000 MHz (64 dB max.) 5.1.2.6 Attenuation to crosstalk ratio at the far end bdg(ACR-F) 1 4 10 62,5 100 155 200 300 400 600 800 1 000 MHz 90 83,3 75,3 59,4 55,3 51,5 49,3 45,8 43,3 39,7 37,2 35,3 dB/100 m 1,0 1,1 1,2 1,3 1,4 1,5 1,6 1,7 1,8 1,9 2,0 GHz 35,3 34,5 33,7 33,0 32,4 31,8 31,2 30,7 30,2 29,7 29,3 dB/100 m 95,3 - 20 logf, 1 MHz f
