1、BSI Standards PublicationMulti-element metallic cables used in analogue and digital communication and controlPart 10-2: Sectional specification for screened cables characterized from 1 MHz up to 500 MHz for work area, patch cord and data centre applicationsBS EN 50288-10-2:2015National forewordThis
2、British Standard is the UK implementation of EN 50288-10-2:2015.The UK participation in its preparation was entrusted to TechnicalCommittee EPL/46, Cables, wires and waveguides, radio frequency connectors and accessories for communication and signalling.A list of organizations represented on this co
3、mmittee 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 78447 7ICS 33.120
4、.10; 33.120.20Compliance 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
5、EN 50288-10-2:2015EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 50288-10-2 September 2015 ICS 33.120.10; 33.120.20 English Version Multi-element metallic cables used in analogue and digital communication and control - Part 10-2: Sectional specification for screened cables characterized from 1
6、 MHz up to 500 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 10-2: Spcification intermdiaire pour les cbles crants caractriss de 1 MHz 500 MHz - Cbles horizontaux et cbles
7、 verticaux de btiment Mehradrige metallische Daten- und Kontrollkabel fr analoge und digitale Kommunikation - Teil 10-2: Rahmenspezifikation fr geschirmte Kabel von 1 MHz bis 500 MHz fr Gerteanschlusskabel, Schaltkabel und Anwendungen fr Rechenzentren This European Standard was approved by CENELEC o
8、n 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 references concerning such national standards may
9、 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 CENELEC member into its own language and no
10、tified 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 Yugoslav Republic of Macedonia, France, Germany
11、, 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 Standardization Comit Europen de Normalisation
12、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 50288-10-2:2015 EBS EN 50288-10-2:2015EN 50288-1
13、0-2:2015 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 Cabling elements . 5 4.4 Identification of
14、 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 requirements for completed cables . 7 5.1 General 7
15、 5.2 Electrical tests . 7 5.3 Mechanical tests 11 5.4 Environmental tests . 12 5.5 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 General 14 B.2 Document
16、 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.1 Maximum recommended
17、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 .16 BS EN 50288-10-2:2015EN 50288-10-2:2015 3 European foreword This document (EN 50288-10-2:2015)
18、 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 standard or by endorse
19、ment (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 be held responsibl
20、e for identifying any or all such patent rights. This Part 10-2 is to be read in conjunction to 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 Elements of the Safety O
21、bjectives for Electrical Equipment Designed for Use within Certain Voltage Limits (LVD - 2006/95/EC). BS EN 50288-10-2:2015EN 50288-10-2:2015 4 1 Scope This sectional specification covers screened cables, characterised from 1 MHz up to 500 MHz, to be used to construct cords for use in cabling specif
22、ied 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 this specification may
23、 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 requirements of the cables when tested i
24、n 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 currents normally encoun
25、tered 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 documents, in whole or in part, are normatively referenced in this document and
26、 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 communication and contro
27、l 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 Tensile strength, el
28、ongation 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 Impact resistance of
29、 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 50289-3-16, Communic
30、ation 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: Common design rules an
31、d construction BS EN 50288-10-2:2015EN 50288-10-2:2015 5 EN 60708, Low-frequency cables with polyolefin insulation and moisture barrier polyolefin sheath (IEC 60708) IEC 60189-2, Low-frequency cables and wires with PVC insulation and PVC sheath Part 2: Cables in pairs, triples, quads and quintuples
32、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 covered by a con
33、tinuous conductive layer forming a 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 abbreviations apply. EX
34、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 comply with the requirements of EN 50288-1:2013, 4.1 The solid conductor nominal diameter shall be 0,40 mm and 0,80 mm. The stranded c
35、onductor 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. 4.3 C
36、abling 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 50288-1:2013
37、, 4.4 BS EN 50288-10-2:2015EN 50288-10-2:2015 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 min
38、imum 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 shall
39、 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 wher
40、e 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 She
41、ath The sheath shall be of a suitable material in accordance with the appropriate part of the EN 50290-2 series. BS EN 50288-10-2:2015EN 50288-10-2:2015 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 ca
42、ble, 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 resist
43、ance (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 50288-10-2:2015EN 50288-10-2:2015 8 5.2.2 High-frequency electrical and transmission measurements Table 2 High-frequency electrical and transmission requirement
45、s 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 500 MHz 5.1.2.2 Propagation delay difference (skew) 45 ns/100 m at 100 MHz 5.1.2.3 D1 Longitudinal Attenuationb, c, f, h, i1 4 10 16 20 31,25 62,5 100 155 200 300 500 MHz 2,9
46、5,5 8,5 10,8 12,1 15,2 21,7 27,8 35,0 40,1 49,9 66,2 dB/100 m 1,5 (1,82 f +0,0091 f +0,25/ f), 1 MHz f 500 MHz 5.1.2.3.1 D2 Longitudinal attenuationb, c, f, h. i 3,225 f +0,0333 f +0,3/ f, 1 MHz f 500 MHz 1 4 10 16 20 31,25 62,5 100 155 200 300 500 MHz 3,6 6,7 10,6 13,5 15,2 19,1 27,6 35,6 45,3 52,3
47、 65,9 88,8 dB/100 m 5.1.2.4 Near End Unbalance Attenuation Level 1 40 - 10 log f dB, 1 MHz f 500 MHz Level 2 50 - 10 log f dB, 1 MHz f 500 MHz 5.1.2.5 Near-end Crosstalk (NEXT)b1 4 10 16 20 31,25 62,5 100 155 200 300 500 MHz 75,3 66,3 60,3 57,2 55,8 52,9 48,4 45,3 42,4 40,8 38,1 34,8 dB 75,3 15 log
48、f, 1 MHz f 500 MHz 5.1.2.6 D1 Attenuation to crosstalk ratio at the far end b, d, g (ACR-F)1 4 10 16 20 31,25 62,5 100 155 200 300 500 MHz 68,0 56,0 48,0 43,9 42,0 38,1 32,1 28,0 24,2 22,0 18,5 14,0 dB 68- 20 log f, 1 MHz f 500 MHz values referenced to 100 m 5.1.2.7.1 Power sum Near-end Crosstalk b
49、(PSNEXT) 1 4 10 16 20 31,25 62,5 100 155 200 300 500 MHz 72,3 63,3 57,3 54,2 52,8 49,9 45,4 42,3 39,4 37,8 35,1 31,8 dB 72,3 15 log f, 1 MHz f 500 MHz 5.1.2.7.2 Power Sum Attenuation to crosstalk ratio at the far end b, d, g (PSACR-F) 1 4 10 16 20 31,25 62,5 100 155 200 300 500 MHz 65,0 53,0 45,0 40,9 39,0 35,1 29,1 25,0 21,2 19,0 15,5 11,0 dB 65 - 20 log f, 1 MHz f 500 MHz values re
