1、BSI Standards PublicationBS EN 50288-5-2:2013Multi-element metallic cables used in analogue and digital communication and controlPart 5-2: Sectional specification for screened cables characterized up to 250 MHz Work area and patch cord cablesCopyright British Standards Institution Provided by IHS un
2、der license with BSI - Uncontrolled Copy Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 50288-5-2:2013 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN50288-5-2:2013. It supersedes BS EN 50288-5-2:2003 which iswithdrawn.T
3、he UK participation in its preparation was entrusted to TechnicalCommittee EPL/46, Cables, wires and waveguides, radio frequencyconnectors and accessories for communication and signalling.A list of organizations represented on this committee can beobtained on request to its secretary.This publicatio
4、n does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2014. Published by BSI StandardsLimited 2014ISBN 978 0 580 77101 9ICS 33.120.20Compliance with a British Standard cannot confer immunity fromle
5、gal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 28 February 2014.Amendments issued since publicationDate Text affectedCopyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Not for Re
6、saleNo reproduction or networking permitted without license from IHS-,-,-BS EN 50288-5-2:2013EUROPEAN STANDARD EN 50288-5-2 NORME EUROPENNE EUROPISCHE NORM May 2013 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr
7、Elektrotechnische Normung Management Centre: Avenue Marnix 17, B - 1000 Brussels 2013 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 50288-5-2:2013 E ICS 33.120.20 Supersedes EN 50288-5-2:2003 English version Multi-element metall
8、ic cables used in analogue and digital communication and control - Part 5-2: Sectional specification for screened cables characterized up to 250 MHz - Work area and patch cord cables Cbles mtalliques lments multiples utiliss pour les transmissions et les commandes analogiques et numriques - Partie 5
9、-2: Spcification intermdiaire pour les cbles blinds pour applications jusqu 250 MHz - Cbles de zone de travail et de brassage Mehradrige metallische Daten- und Kontrollkabel fr analoge und digitale bertragung - Teil 5-2: Rahmenspezifikation fr geschirmte Kabel bis 250 MHz - Gerteanschlusskabel und S
10、chaltkabel This European Standard was approved by CENELEC on 2013-03-18. 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 bibli
11、ographical references 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 res
12、ponsibility 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 national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Fin
13、land, Former Yugoslav 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. Copyright British Standards
14、 Institution Provided by IHS under license with BSI - Uncontrolled Copy Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 50288-5-2:2013EN 50288-5-2:2013 - 2 - Contents Page Foreword . 3 1 Scope . 4 2 Normative references 4 3 Terms, definitions, symbols and abb
15、reviations . 4 3.1 Terms and definitions 4 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 cabling elements . 5 4.5 Screening of cabling elements . 5 4.6 Cable make-up 5 4.7 Filling compound . 5 4.8 Interstitial
16、 fillers . 5 4.9 Screening of the cable core . 6 4.10 Moisture barriers 6 4.11 Wrapping layers . 6 4.12 Sheath . 6 5 Tests and requirements for completed cables 6 5.1 Electrical tests . 6 5.2 Mechanical tests 10 5.3 Environmental tests . 11 5.4 Fire performance tests . 11 Annex A (informative) Maxim
17、um voltage, current and temperature rating for cables used for POE applications . 12 Annex B (informative) Blank Detail Specification 13 Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Not for ResaleNo reproduction or networking permitted without li
18、cense from IHS-,-,-BS EN 50288-5-2:2013- 3 - EN 50288-5-2:2013 Foreword This document EN 50288-5-2:2013 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
19、 has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2014-03-18 latest date by which the national standards conflicting with this document have to be withdrawn (dow) 2016-03-18 This document supersedes EN 50288-5-2:2003. EN 50288-5-2:2013
20、includes the following significant technical changes with respect to EN 50288-5-2:2003: - the addition of the Blank Detail Specification Annex; - a number minor corrections and updating of references; - the re-classification of ELFEXT to ACR-F. This Part 5-2 is to be read in conjunction to EN 50288-
21、1. 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 for Electrical
22、 Equipment Designed for Use within Certain Voltage Limits (LVD - 2006/95/EC). Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 50288-5-2:2013EN 50288-5-2:2013 -
23、4 - 1 Scope EN 50288-5-2 is a sectional specification for screened cables, characterised from 1 MHz up to 250 MHz, to be used as work area cables to connect a telecommunications outlet to the terminal equipment and for patch cord cables to establish connections on a patch panel as defined in EN 5017
24、3. Work area and data centres cables may also be used as patch cord cables in any distributor of a generic building wiring system to interconnect with equipment or to cross-connect between cabling systems. This sectional specification contains the electrical, mechanical, transmission and environment
25、al performance characteristics of 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 int
26、ended to operate with voltages and currents 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
27、 in part, are normatively referenced in 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 50173 Series Information technology - Ge
28、neric cabling systems EN 50288-1 Multi-element metallic cables used in analogue and digital communication and control - Part 1: Generic specification EN 50289 Series Communication cables - Specifications for test methods EN 50290 Series Communication cables EN 60811 Series Electric and optical fibre
29、 cables - Test methods for non-metallic materials (IEC 60811 series) 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 installations 3 Terms, definitions, symbols and abbreviations 3.1 Terms and definitio
30、ns For the purposes of this document the terms and definitions given in EN 50288-1 and the following apply. Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 5028
31、8-5-2:2013- 5 - EN 50288-5-2:2013 3.1.1 screening of cable a cable is considered screened when the cable core is covered by a continuous conductive layer forming part of the shielding and grounding system Note 1 to entry: d.c. continuity has to be given and minimum shielding requirements have to be
32、met. 3.2 Symbols and abbreviations For the purposes of this document, the following abbreviations apply. EX Exogenous (derived or originating externally) POE Power Over Ethernet 4 Cable construction 4.1 Conductor The conductor shall be solid or stranded copper and meet the requirements of EN 50288-1
33、, 4.1 The stranded conductor shall consist of seven wires each with a nominal diameter of 0,10 mm to 0,21 mm. The conductor shall be plain or metal coated. The solid conductor nominal diameter shall be 0,4 mm to 0,8 mm. NOTE Constructions with copper clad conductors do not meet the requirements 4.2
34、Insulation The insulation shall be of a suitable material according to the relevant part of EN 50290-2. 4.3 Cabling elements The cable element shall be a pair or a quad. 4.4 Identification of cabling elements Unless otherwise specified, the colour coding for identification is given in IEC 60189-2. T
35、he colours shall meet the requirements of EN 50288-1, 4.4 4.5 Screening of cabling elements Where appropriate, screening of the cabling elements shall be applied in accordance with 4.5 of EN 50288-1. Coverage is defined in EN 50290-2-1. 4.6 Cable make-up The cable elements shall be laid up in concen
36、tric 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 EN 50288-1, 4.8 Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Not for ResaleNo
37、reproduction or networking permitted without license from IHS-,-,-BS EN 50288-5-2:2013EN 50288-5-2:2013 - 6 - 4.9 Screening of the cable core The screening of the cable core shall be applied in accordance with EN 50288-1, 4.9. Coverage is defined in EN 50290-2-1. 4.10 Moisture barriers Not applicabl
38、e. 4.11 Wrapping layers Where wrapping layers are used they shall be in accordance with EN 50288-1, 4.11. 4.12 Sheath The sheath shall be of a suitable material according to the relevant part of EN 50290-2. 5 Tests and requirements for completed cables The following tables give the tests to be appli
39、ed, together with the respective limits, in order to demonstrate compliance with this specification. 5.1 Electrical tests 5.1.1 Low-frequency and d.c. electrical measurements Table 1 - Low-frequency and d.c. electrical measurements EN 50288-1 sub-clause Parameter Requirement 5.1.1.1 Conductor loop r
40、esistance (D1) 28,0 /100 m (D2) 34,0 /100 m 5.1.1.2 Conductor resistance unbalance 2,0 % 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 Insulation resistance 5 000 M km when tested in accordance
41、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 Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Not for ResaleNo reproduction or networking permitted without license from IHS-,
42、-,-BS EN 50288-5-2:2013- 7 - EN 50288-5-2:2013 5.1.2 High-frequency electrical and transmission measurements Table 2 - High-frequency electrical and transmission requirements EN 50288-1 sub-clause Parameter Requirement 5.1.2.1 Velocity of propagation Phase delay 534+36/f ns/100 m, 1 MHz f 250 MHz 5.
43、1.2.2 Propagation delay difference (skew) 45 ns/100 m at 100 MHz 5.1.2.3.1 D1 Longitudinal attenuation2) 3) 4) 7)5.1.2.3.2 D2 Longitudinal attenuation2) 3) 4) 7) 8)1 4 10 16 20 31,25 62,5 100 155 200 250 MHz 3,6 6.7 10.6 13,5 15,2 19,1 27,6 35.6 45,4 52.3 59,3 dB/100m 3.225f+0,0333f+0,3/f), 1 MHz f
44、100 MHz 5.1.2.4 Near-end unbalance attenuation 40-10log(f) dB, 1 MHz f 250 MHz; 5.1.2.5 Near-end crosstalk (NEXT)1) 2)5.1.2.6 Attenuation to crosstalk ratio at the far end 2) 6) (ACR-F) 1 4 10 16 20 31,25 62,5 100 155 200 250 MHz 66,0 58,0 50 45,9 44 40,1 34,1 30 26,2 24,0 22,0 dB 70-20log(f), 1 MHz
45、 f 250 MHz (maximum 66 dB), values referenced to 100 m 5.1.2.7.1 Power sum near-end crosstalk 2) (PSNEXT) 1 4 10 16 20 31,25 62,5 100 155 200 250 MHz 3,1 5,8 9,0 11,4 12,8 16,1 23,2 29,9 38,0 43,7 49,5 dB/100m 1,5(1,82f+0,0169f+0,25/f), 1 MHz f 250 MHz 1 4 10 16 20 31,25 62,5 100 155 200 250 MHz 75,
46、4,0 66,3 60,3 57,2 55,8 52,9 48,4 45,3 42,4 40,8 39,3 dB 75,3-15log(f), 1 MHz f 250 MHz 1 4 10 16 20 31,25 62,5 100 155 200 250 MHz 72,3 63,3 57,3 54,2 52,8 49,9 45,4 42,3 39,4 37,8 36,3 dB 72,3-15log(f), 1 MHz f 250 MHz Copyright British Standards Institution Provided by IHS under license with BSI
47、- Uncontrolled Copy Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 50288-5-2:2013EN 50288-5-2:2013 - 8 - 5.1.2.7.2 Power Sum Attenuation to crosstalk ratio at the far end 2) 6) (PSACR-F) 5.1.2.8 Mean characteristic impedance 100 5 , 120 5 , at 100 MHz 5.1.2.
48、9 Return loss2) 5)5.1.2.10 Coupling attenuation Type I 85dB , 30 MHz f 100 MHz 85 - 20 log f/100 dB 100 MHz f 1000 MHz Type Ib 70dB , 30 MHz f 100 MHz 70 - 20 log f/100 dB 100 MHz f 1000 MHz Type II 55dB, 30 MHz f 100 MHz 55 - 20 log f/100 dB 100 MHz f 1000 MHz 5.1.2.11 Transfer impedance Grade 1 15 m/m at 1MHz; 10 m/m at 10 MHz;
