1、BSI Standards PublicationMulti-element metallic cables used in analogue and digital communication and controlPart 9-2: Sectional specification for screened cables characterized from 1 MHz up to1000 MHz for work area, patch cord and data centre applicationsBS EN 50288-9-2:2015National forewordThis Br
2、itish Standard is the UK implementation of EN 50288-9-2:2015.The UK participation in its preparation was entrusted to TechnicalCommittee EPL/46, Cables, wires and waveguides, radio frequency connec-tors and accessories for communication and signalling.A list of organizations represented on this comm
3、ittee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisions ofa contract. Users are responsible for its correct application. The British Standards Institution 2015.Published by BSI Standards Limited 2015ISBN 978 0 580 78446 0ICS 33.120.1
4、0; 33.120.20 Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 September 2015.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS E
5、N 50288-9-2:2015EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 50288-9-2 September 2015 ICS 33.120.10; 33.120.20 English Version Multi-element metallic cables used in analogue and digital communication and control - Part 9-2: Sectional specification for screened cables characterized from 1 MHz
6、 up to 1 000 MHz for work area, patch cord and data centre applications Cbles mtalliques lments multiples utiliss pour les transmissions et les commandes analogiques et numriques - Partie 9-2: Spcification intermdiaire pour lescbles crants caractriss de 1 MHz 1 000 MHz - Cbles de zone de travail, po
7、ur cordons de brassage, et pour centres de traitement de donnes Mehradrige metallische Daten- und Kontrollkabel fr analoge und digitale Kommunikation - Teil 9-2: Rahmenspezifikation fr geschirmte Kabel von 1 MHz bis 1 000 MHz fr Gerteanschlusskabel, Schaltkabel und Anwendungen fr Rechenzentren This
8、European Standard was approved by CENELEC on 2015-08-03. CENELEC members are bound to comply 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 refere
9、nces concerning such national standards may be obtained on application to the CEN-CENELEC Management 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
10、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 national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugo
11、slav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. European Committee for Electrotechnical Stan
12、dardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN 50288
13、-9-2:2015 EBS EN 50288-9-2:2015EN 50288-9-2:2015 2 Contents Page European foreword . 3 1 Scope 4 2 Normative references 4 3 Terms, definitions, symbols and abbreviations . 5 3.1 Terms and definitions 5 3.2 Symbols and abbreviations . 5 4 Cable construction 5 4.1 Conductor 5 4.2 Insulation . 5 4.3 Ca
14、bling elements . 5 4.4 Identification of cabling elements 5 4.5 Screening of cabling elements 6 4.6 Cable make-up 6 4.7 Filling compound . 6 4.8 Interstitial fillers 6 4.9 Screening of the cable core . 6 4.10 Moisture barriers . 6 4.11 Wrapping layers 6 4.12 Sheath . 6 5 Test methods and requirement
15、s for completed cables . 7 5.1 Electrical tests . 7 5.2 Mechanical tests 11 5.3 Environmental tests . 12 5.4 Fire performance tests 12 Annex A (informative) Maximum voltage, current and temperature rating for cables used for POE applications 13 Annex B (informative) Blank Detail Specification 14 B.1
16、 General 14 B.2 Document Details 14 B.3 Generic specification EN 50288-1 . 15 Tables Table 1 Low-frequency and d.c. electrical measurements 7 Table 2 High-frequency electrical and transmission requirements 8 Table 3 Mechanical test requirements .11 Table 4 Environmental test requirements 12 Table A.
17、1 Maximum recommended voltage, current, current density and conductor temperature for cables when used for POE applications 13 Table B.1 Blank Detail Specification for symmetrical pair/quad cables for digital communications 15 BS EN 50288-9-2:2015EN 50288-9-2:2015 3 European foreword This document (
18、EN 50288-9-2:2015) has been prepared by CLC/SC 46XC “Multicore, 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 stan
19、dard or by endorsement (dop) 2016-08-03 latest date by which the national standards conflicting with this document have to be withdrawn (dow) 2018-08-03 Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not
20、be held responsible for identifying any or all such patent rights. This Part 9-2 is to be read in conjunction with EN 50288-1. This document has been prepared under a mandate given to CENELEC by the European Commission and the European Free Trade Association. This standard covers the Principle Eleme
21、nts of the Safety Objectives for Electrical Equipment Designed for Use within Certain Voltage Limits (LVD - 2006/95/EC). BS EN 50288-9-2:2015EN 50288-9-2:2015 4 1 Scope This sectional specification covers screened cables, characterised from 1 MHz up to 1 000 MHz, to be used to construct cords for us
22、e in cabling specified in the EN 50173 series of standards. The premises-specific cabling standards of the EN 50173 series reference the D1 requirements of this specification for the cable used within cords of the “reference implementations” of those standards. The alternative D2 requirements of thi
23、s specification may be used to produce cords for other implementations and applications including the direct connection of equipment in data centres. This sectional specification contains the electrical, mechanical, transmission and environmental performance characteristics and requirement of the ca
24、bles when tested in accordance with the referenced test methods. This sectional specification should 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 curre
25、nts normally encountered in communication systems. These cables are not intended to be used in conjunction with low impedance sources, for example, the electric power supplies of public utility mains. 2 Normative references The following documents, in whole or in part, are normatively referenced in
26、this document and are indispensable for its application. 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 communi
27、cation and control Part 1: Generic specification EN 50289-3-2, Communication cables Specifications for test methods Part 3-2: Mechanical test methods Tensile strength and elongation for conductor EN 50289-3-4, Communication cables Specifications for test methods Part 3-4: Mechanical test methods Ten
28、sile strength, elongation and shrinkage of insulation and sheath EN 50289-3-5, Communication cables Specifications for test methods Part 3-5: Mechanical test methods Crush resistance of the cable EN 50289-3-6, Communication cables Specifications for test methods Part 3-6: Mechanical test methods Imp
29、act resistance of the cable EN 50289-3-8, Communication cables Specifications for test methods Part 3-8: Mechanical test methods Abrasion resistance of cable sheath markings EN 50289-3-9:2001, Communication cables Specifications for test methods Part 3-9: Mechanical test methods Bending tests EN 502
30、89-3-16, Communication cables Specifications for test methods Part 3-16: Mechanical test methods Cable tensile performance EN 50289-4-6, Communication cables Specifications for test methods Part 4-6: Environmental test methods Temperature cycling EN 50290-2 series, Communication cables Part 2: Commo
31、n design rules and construction EN 60708, Low-frequency cables with polyolefin insulation and moisture barrier polyolefin sheath (IEC 60708) BS EN 50288-9-2:2015EN 50288-9-2:2015 5 IEC 60189-2, Low-frequency cables and wires with PVC insulation and PVC sheath Part 2: Cables in pairs, triples, quads
32、and quintuples for inside installations 3 Terms, definitions, symbols and abbreviations 3.1 Terms and definitions For the purposes of this document, the terms and definitions given in EN 50288-1 and the following apply. 3.1.1 screening of cable a cable is considered screened when the cable core is c
33、overed by a continuous conductive layer forming part of the shielding and bonding system of the cabling system Note 1 to entry: DC continuity has to be given and minimum shielding requirements have to be met. 3.2 Symbols and abbreviations For the purposes of this document, the following abbreviation
34、s apply. EX Exogenous (derived or originating externally) POE Power Over Ethernet 4 Cable construction 4.1 Conductor The conductor shall be solid or stranded annealed copper and meet the requirements of EN 50288-1:2013, 4.1 The solid conductor nominal diameter shall be 0,40 mm and 0,80 mm. The stran
35、ded conductor shall consist of seven wires each with a nominal diameter of 0,10 mm to 0,21 mm. NOTE Constructions with copper clad conductors do not meet the requirements. 4.2 Insulation The insulation shall be of a suitable material in accordance with the appropriate part of the EN 50290-2 series.
36、4.3 Cabling elements The cable element shall be a pair or quad. 4.4 Identification of cabling elements Unless otherwise specified, the colour coding for identification shall be as specified in IEC 60189-2 or EN 60708, as appropriate. The colours shall comply with the requirements given in EN 50288-1
37、:2013, 4.4 BS EN 50288-9-2:2015EN 50288-9-2:2015 6 4.5 Screening of cabling elements Screening of the cabling elements shall be applied in accordance with EN 50288-1:2013, 4.5. When a braid is used the minimum braid coverage (for mechanical purposes) shall be 60%. When a foil and braid are used the
38、minimum braid coverage (for mechanical purposes) shall be 30% coverage as 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 sh
39、all meet the requirements of EN 50288-1:2013, 4.8 4.9 Screening of the cable core The screening of the cable core shall be applied in accordance with EN 50288-1:2013, 4.9. When a braid is used the minimum braid coverage (for mechanical purposes) shall be 60%. When a foil and braid are used, and/or w
40、here a foil is used over each cabling element/the core, the minimum braid coverage (for mechanical purposes) shall be 30% as 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 EN 50288-1:2013, 4.11 4.12
41、Sheath The sheath shall be of a suitable material in accordance with the appropriate part of the EN 50290-2 series. BS EN 50288-9-2:2015EN 50288-9-2:2015 7 5 Test methods and requirements for completed cables 5.1 General The following tables specify the tests that shall be applied to the completed c
42、able, together with the requirements to demonstrate compliance with this sectional specification. 5.2 Electrical tests 5.2.1 Low-frequency and DC electrical measurements Table 1 Low-frequency and DC electrical measurements EN 50288-1:2013 Sub-clause Parameter Requirement 5.1.1.1 Conductor loop resis
43、tance (D1) 28,0 /100 m (D2) 34,0 /100 m 5.1.1.2 Conductor resistance unbalance 2% Pair resistance unbalance 4% 5.1.1.3 Dielectric strength conductor/conductor and conductor/screen1,0 kV DC or 0,7 kV AC for 1 min or 2,5 kV DC or 1,7 kV AC for 2 s 5.1.1.4 Insulation resistance 5 000 M.km when tested i
44、n accordance with EN 50289-1-4 5.1.1.5 Mutual capacitance No requirement specified 5.1.1.6 Capacitance unbalance to earth 1 200 pF/km BS EN 50288-9-2:2015EN 50288-9-2:2015 8 5.2.2 High-frequency electrical and transmission measurements and requirements Table 2 High-frequency electrical and transmiss
45、ion requirements EN 50288-1:2013 Sub-clause Parameter Requirement 5.1.2.1 Velocity of Propagation Phase delay 534 + 36/f ns/100 m, 1 MHz f 1 000 MHz 5.1.2.2 Propagation delay difference (skew) 25 ns/100 m at 4 MHz to 1 000 MHz 5.1.2.3 D1 Longitudinal Attenuationb, c, f, h, i 1 4 10 62,5 100 155 200
46、300 400 600 800 1 000 MHz 2,9 5,5 8,5 21,7 27,8 35,0 40,1 50,0 58,5 73,3 86,3 98,0 dB/100 m 1,5 (1,80 f +0,005 f +0,25/ f ), 1 MHz f 1 000 MHz 5.1.2.3.1 D2 Longitudinal attenuationb, c, f , h, i 3,225f +0,0333 f +0,3/ f , 1 MHz f 1000 MHz 1 4 10 62,5 100 155 200 300 400 600 800 1 000 MHz 3,6 6,7 10,
47、6 27,6 35,6 45,3 52,3 65,9 77,8 99,0 117,9 135,3 dB/100 m 5.1.2.4 Near End Unbalance Attenuation Level 1 40-10 log f dB, 1 MHz f 1 000 MHz Level 2 50-10 log f dB, 1 MHz f 1 000 MHz 5.1.2.5 Near-end Crosstalk (NEXT)b 1 4 10 62,5 100 155 200 300 400 600 800 1 000 MHz 78,0 78,0 78,0 78,0 75,4 72,5 70,9
48、 68,2 66,4 63,7 61,9 60,4 dB 105,4 15 log f, 1 MHz f 1 000 MHz (78 dB max.) 5.1.2.6 D1 Attenuation to crosstalk ratio at the far end b, d, f, g(ACR-F) 1 4 10 62,5 100 155 200 300 400 600 800 1 000 MHz 78,0 78,0 78,0 69,4 65,3 61,5 59,3 55,8 53,3 49,7 47,2 45,3 dB/100 m 105,3 20 log f, 1 MHz f 1 000
49、MHz (78 dB max.), values referenced to 100 m 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 75,0 75,0 75,0 75,0 72,4 69,5 67,9 65,2 63,4 60,7 58,9 57,4 dB 102,4 15 log f, 1 MHz f 1 000 MHz (75 dB max.) BS EN 50288-9-2:2015EN 50288-9-2:2015 9 Table 2 High-frequency electrical and transmission measurements and requirements (continue
