1、BSI Standards PublicationMulti-element metallic cables used in analogue and digital communication and controlPart 11-2: Sectional specification for un-screened cables, characterized from 1 MHz up to 500 MHz for work area, patch cord and data centre applicationsBS EN 50288-11-2:2015National forewordT
2、his British Standard is the UK implementation of EN 50288-11-2:2015.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 th
3、is committee 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 64595 2ICS 3
4、3.120.10Compliance 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 EN 502
5、88-11-2:2015EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 50288-11-2 September 2015 ICS 33.120.10 English Version Multi-element metallic cables used in analogue and digital communication and control - Part 11-2: Sectional specification for un-screened cables, characterized from 1 MHz up to 50
6、0 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 11-2: Spcification intermdiaire pour les cbles non crants, caractriss de 1 MHz 500 MHz - Cbles horizontaux et cbles vertica
7、ux de btiment Mehradrige metallische Daten- und Kontrollkabel fr analoge und digitale Kommunikation - Teil 11-2: Rahmenspezifikation fr ungeschirmte Kabel von 1 MHz bis 500 MHz fr Gerteanschlusskabel, Schaltkabel und Anwendungen fr Rechenzentren This European Standard was approved by CENELEC on 2015
8、-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 be ob
9、tained 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 notified
10、 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, Gree
11、ce, 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 Electr
12、otechnique 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 50288-11-2:2015 EBS EN 50288-11-2:2015EN 50288-11-2:20
13、15 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 cabli
14、ng elements 5 4.5 Screening of cabling elements 5 4.6 Cable make-up 5 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 . 6 5.1 Electrical test
15、s . 6 5.2 Mechanical tests 10 5.3 Environmental tests . 11 5.4 Fire performance tests 11 Annex A (informative) Maximum voltage, current and temperature rating for cables used for POE applications . 12 Annex B (informative) Blank Detail Specification 13 B.1 General 13 B.2 Document Details 13 B.3 Gene
16、ric specification EN 50288-1 . 14 Tables Table 1 Low-frequency and d.c. electrical measurements 6 Table 2 High-frequency electrical and transmission measurements .7 Table 3 Mechanical test requirements .10 Table 4 Environmental test requirements 11 Table A.1 Maximum recommended voltage, current, cur
17、rent density and conductor 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 50288-11-2:2015EN 50288-11-2:2015 3 European foreword This document (EN 50288-11-2:2015) has been prepared by
18、 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 endorsement (dop) 2015-08-03
19、 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. CENELEC and/or CEN shall not be held responsible for identifying any
20、 or all such patent rights. This Part 11-2 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 Objectives for Electri
21、cal Equipment Designed for Use within Certain Voltage Limits (LVD - 2006/95/EC). BS EN 50288-11-2:2015EN 50288-11-2:2015 4 1 Scope This sectional specification covers un-screened cables, characterised from 1 MHz up to 500 MHz, to be used to construct cords for use in cabling specified in the EN 5017
22、3 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 be used to produc
23、e 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 in accordance with
24、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 encountered in communica
25、tions 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 are indispensable
26、 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 control Part 1: Generic
27、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, elongation and shrin
28、kage 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 the cable EN 5028
29、9-3-8, 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, Communication cables Speci
30、fications 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 and construction BS
31、EN 50288-11-2:2015EN 50288-11-2:2015 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 for inside install
32、ations 3 Terms, definitions, symbols and abbreviations 3.1 Terms and definitions For the purposes of this document, the terms and definitions of EN 50288-1 apply. 3.2 Symbols and abbreviations For the purposes of this document, the following abbreviations apply. EX Exogenous (derived or originating
33、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 stranded conductor shall consist of seven wires eac
34、h 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 Cabling elements The cable element shall b
35、e 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 of EN 50288-1:2013, 4.4. 4.5 Screening of cabling elements Not ap
36、plicable. 4.6 Cable make-up The cable elements shall be laid up in concentric layer(s) or units to form the cable core. BS EN 50288-11-2:2015EN 50288-11-2:2015 6 4.7 Filling compound Not applicable. 4.8 Interstitial fillers Where fillers are used they shall comply with the requirements of EN 50288-1
37、:2013, 4.8. 4.9 Screening of the cable core Not applicable. 4.10 Moisture barriers Not applicable. 4.11 Wrapping layers Where wrapping layers are used they shall comply with the requirements of EN 50288-1:2013, 4.11 4.12 Sheath The sheath shall be of a suitable material and comply with the appropria
38、te part of the EN 50290-2 series. 5 Test methods and requirements for completed cables 5.1 General The following tables specify the tests that shall be applied to the completed cable, together with the requirements to demonstrate compliance with this sectional specification. 5.2 Electrical tests 5.2
39、.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 resistance (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 Die
40、lectric strength conductor/conductor1,0 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 in 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 502
41、88-11-2:2015EN 50288-11-2:2015 7 5.2.2 High-frequency electrical and transmission measurements Table 2 High-frequency electrical and transmission measurements 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 Pro
42、pagation delay difference (skew) 45 ns/100 m at 100 MHz 5.1.2.3 D1 Longitudinal Attenuation b, c, f, g, h1 4 10 16 20 31,25 62,5 100 155 200 300 500 MHz 2,9 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 attenu
43、ation b, c, f, g, h 3,225f +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 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.
44、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 f, 1 MHz f 500 MHz 5.1.2.6 D1 Attenuation to crosstalk ratio at the far end b, d(ACR-F) 1 4 10 16 20 31.25 62,5 100 155 200 300 500 MHz 68,0 58,0
45、50,0 45,9 42,0 40,1 34,1 30,0 26,2 24,0 20,5 16,0 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(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
46、MHz 5.1.2.7.2 Power Sum Attenuation to crosstalk ratio at the far end b, d(PSACR-F) 1 4 10 16 20 31,25 62,5 100 155 200 300 500 MHz 65.0 55,0 47,0 42,9 41,0 37,1 31,1 27,0 23,2 21,0 17,5 13,0 dB 65 - 20 log f, 1 MHz f 500 MHz , values referenced to 100 m BS EN 50288-11-2:2015EN 50288-11-2:2015 8 Tab
47、le 2 High-frequency electrical and transmission measurements and requirements (continued) EN 50288-1:2013 Sub-clause Parameter Requirement 5.1.2.7.4 Power Sum Exogenous Crosstalk PSExNEXT b, e1 4 10 16 20 31,25 62,5 100 155 200 300 500 MHz 67,0 67,0 67,0 67,0 67,0 67,0 65,6 62,5 59,6 58,0 57,3 52,0
48、dB 92,5 - 15 log f, 1 MHz f 500 MHz (67 dB max.) 5.1.2.7.6 Power Sum Attenuation to crosstalk ratio at the far end Exogenous Crosstalk PSExACR-F b, c, d. e 1 4 10 16 20 31,25 62,5 100 155 200 300 500 MHz 67,0 66,2 58,2 54,1 52,2 48,3 42,3 38,2 34,4 32,2 28,7 24,2 dB 78,2 - 20 log f, 1 MHz f 500 MHz
49、(67 dB max.) values referenced to 100 m 5.1.2.8 Mean Characteristic Impedance (100 5) , at 100 MHz 5.1.2.9 Return loss a. b, f 4 8 10 16 20 31,25 62,5 100 155 250 300 500 MHz 23,0 24,5 25,0 25,0 25,0 23,6 21,5 20,1 18,8 17,3 17,3 17,3 dB 20 + 5 log f, 4 MHz f 10 MHz; 25 dB, 10 MHz f 20 MHz; 25 - 7 log (f /20), 20 MHz f 250 MHz; 17,3 dB, 250 MHz f 500
