1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Information technology Cabling installationPart 2: Installation planning and practices inside buildingsBS EN 50174-2:2018EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 50174-2 June 2018 ICS 35.110; 91.140.50 Super
2、sedes EN 50174-2:2009 English Version Information technology - Cabling installation - Part 2: Installation planning and practices inside buildings Technologies de linformation - Installation de cblages - Partie 2 : Planification et pratiques dinstallation lintrieur des btiments Informationstechnik -
3、 Installation von Kommunikationsverkabelung - Teil 2: Installationsplanung und Installationspraktiken in Gebuden This European Standard was approved by CENELEC on 2018-05-21. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
4、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 exists in three official
5、 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 national electrotechnica
6、l 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, Portugal, Romania, Serb
7、ia, 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: Rue de la Science 23, B-1040 Brus
8、sels 2018 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN 50174-2:2018 E National forewordThis British Standard is the UK implementation of EN 50174-2:2018. It supersedes BS EN 50174-2:2009+A2:2014, which is withdrawn.The UK partici
9、pation in its preparation was entrusted to Technical Committee TCT/7, Telecommunications - Installation requirements.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contra
10、ct. Users are responsible for its correct application. The British Standards Institution 2018 Published by BSI Standards Limited 2018ISBN 978 0 580 98719 9ICS 33.040.50; 35.110; 91.140.50Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was publis
11、hed under the authority of the Standards Policy and Strategy Committee on 31 July 2018.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 50174-2:2018EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 50174-2 June 2018 ICS 35.110; 91.140.50 Supersedes EN 50174-2:
12、2009 English Version Information technology - Cabling installation - Part 2: Installation planning and practices inside buildings Technologies de linformation - Installation de cblages - Partie 2 : Planification et pratiques dinstallation lintrieur des btiments Informationstechnik - Installation von
13、 Kommunikationsverkabelung - Teil 2: Installationsplanung und Installationspraktiken in Gebuden This European Standard was approved by CENELEC on 2018-05-21. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard
14、 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 exists in three official versions (Englis
15、h, 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 national electrotechnical committees of A
16、ustria, 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, Portugal, Romania, Serbia, Slovakia, Slo
17、venia, 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: Rue de la Science 23, B-1040 Brussels 2018 CENELEC
18、 All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN 50174-2:2018 E BS EN 50174-2:2018EN 50174-2:2018 (E) 2 Contents Page European foreword . 9 Introduction . 10 1 Scope and conformance 13 1.1 Scope . 13 1.2 Conformance . 13 2 Normative referen
19、ces . 14 3 Terms, definitions and abbreviations 16 3.1 Terms and definitions 16 3.2 Abbreviations . 19 4 Requirements for planning installations of information technology cabling 20 4.1 Safety . 20 4.1.1 Personnel . 20 4.1.2 Low voltage power supply cabling . 20 4.1.3 Optical fibre cabling . 20 4.1.
20、4 Transmission and terminal equipment . 20 4.1.5 Closures . 21 4.1.6 Cables 21 4.1.7 Termination points . 22 4.2 Documentation . 22 4.2.1 Requirements 22 4.2.2 Recommendations . 22 4.3 Pathways . 22 4.3.1 Requirements 22 4.3.2 Recommendations . 23 4.4 Pathway systems . 24 4.4.1 Requirements 24 4.4.2
21、 Recommendations . 26 4.5 Cable management systems . 27 4.5.1 General 27 4.5.2 Overhead cable management systems . 29 4.5.3 Under-floor cable management systems . 30 4.5.4 Conduit. 31 4.6 Closures . 32 4.7 Cabling . 32 4.7.1 Requirements 32 BS EN 50174-2:2018EN 50174-2:2018 (E) 3 4.8 Filtering and e
22、lectrical isolation components and surge protective devices 33 4.9 Spaces . 33 4.9.1 Requirements 33 4.9.2 Recommendations . 34 4.10 Planning for repair . 36 4.11 Planning and assessment of cabling in support of remote powering objectives 37 4.11.1 General 37 4.11.2 Balanced cabling in accordance wi
23、th EN 50173 series 37 5 Requirements for the installation of information technology cabling 42 5.1 Safety . 42 5.1.1 General 42 5.1.2 Pathways . 42 5.1.3 Closures . 43 5.1.4 Cables 43 5.2 Documentation . 43 5.3 Installation practice 43 5.3.1 Storage of cabling components and equipment 43 5.3.2 Pathw
24、ays . 43 5.3.3 Pathway systems . 44 5.3.4 Closures . 47 5.3.5 Cable installation . 47 5.3.6 Jointing and termination of cables . 49 5.3.7 Cords and jumpers 50 5.4 Surge protective devices . 51 5.5 Labelling . 51 5.6 Testing . 51 5.7 Contractual acceptance . 51 5.8 Operation . 51 5.8.1 Requirements 5
25、1 5.8.2 Recommendations . 51 6 Segregation of metallic information technology cabling and power supply cabling . 52 6.1 General 52 6.2 Requirements . 52 6.2.1 General segregation requirements 52 6.2.2 Conditional relaxation of requirement 59 6.3 Recommendations . 59 6.4 Separation of cable bundles t
26、o reduce thermal impact of remote powering . 60 BS EN 50174-2:2018EN 50174-2:2018 (E) 4 7 Electricity distribution systems and lightning protection . 60 7.1 Electricity distribution systems . 60 7.1.1 General 60 7.1.2 Availability of supply 61 7.1.3 Earthing of the AC distribution system 61 7.2 Prot
27、ection against lightning and induced overvoltages . 62 7.2.1 General 62 7.2.2 Design 62 7.2.3 Installation 63 8 Office (commercial) spaces. 63 8.1 General 63 8.2 Office (commercial) spaces cabling design overview 63 8.3 Requirements for planning installations of information technology cabling . 63 8
28、.3.1 Safety . 63 8.3.2 Documentation . 63 8.3.3 Pathways . 63 8.3.4 Pathway systems . 64 8.3.5 Cable management systems . 64 8.3.6 Closures . 64 8.3.7 Cabling . 64 8.3.8 Spaces . 64 8.4 Requirements for installers of information technology cabling 67 8.5 Segregation of metallic information technolog
29、y cabling and power supply cabling 67 9 Industrial spaces 67 9.1 General 67 9.2 Industrial premises cabling design overview . 67 9.3 Requirements for planning installations of information technology cabling . 68 9.3.1 Safety . 68 9.3.2 Documentation . 69 9.3.3 Pathways . 69 9.3.4 Pathway systems . 6
30、9 9.3.5 Cable management systems . 69 9.3.6 Closures . 69 9.3.7 Cabling . 69 9.3.8 Spaces . 70 9.4 Requirements for installers of information technology cabling 70 9.4.1 General 70 BS EN 50174-2:2018EN 50174-2:2018 (E) 5 9.4.2 Cable pair count . 70 9.4.3 Mix of cable and connector types 70 9.4.4 Ter
31、mination of unused pairs 70 9.4.5 High flexibility cables . 70 9.4.6 Rolling “C” tracks . 70 9.5 Segregation of metallic information technology cabling and power supply cabling 70 10 Homes 70 10.1 General 70 10.2 Home cabling design overview . 71 10.2.1 General 71 10.2.2 Generic cabling 74 10.2.3 Ca
32、bling in accordance with EN 50491-6-1 74 10.3 Requirements for planning installations of information technology cabling 75 10.3.1 Safety . 75 10.3.2 Documentation. 75 10.3.3 Pathways . 75 10.3.4 Pathway systems . 76 10.3.5 Cable management systems . 76 10.3.6 Closures . 76 10.3.7 Cabling . 76 10.3.8
33、 Spaces . 77 10.4 Requirements for installers of information technology cabling . 81 10.4.1 Requirements 81 10.4.2 Recommendations . 81 10.5 Segregation of metallic information technology cabling and power supply cabling 81 11 Data centre spaces . 81 11.1 General 81 11.2 Data centre cabling design a
34、nd planning overview 82 11.2.1 General 82 11.2.2 Requirements 82 11.2.3 Recommendations . 82 11.3 Requirements for planning installations of information technology cabling 82 11.3.1 Safety . 82 11.3.2 Documentation. 82 11.3.3 Pathways . 83 11.3.4 Pathway systems . 84 11.3.5 Cable management systems
35、. 84 BS EN 50174-2:2018EN 50174-2:2018 (E) 6 11.3.6 Closures . 84 11.3.7 Cabling . 84 11.3.8 Spaces . 84 11.3.9 Operation . 87 11.4 Requirements for installers of information technology cabling . 87 11.5 Segregation of metallic information technology cabling and power supply cabling 87 11.5.1 Requir
36、ements 87 11.5.2 Recommendations . 87 12 Cabling for distributed services within buildings . 87 12.1 General 87 12.2 Requirements for planning installations of information technology cabling 87 12.2.1 Safety . 87 12.2.2 Documentation. 87 12.2.3 Pathways . 88 12.2.4 Pathway systems . 88 12.2.5 Cable
37、management systems . 88 12.2.6 Closures . 88 12.2.7 Cabling . 89 12.2.8 Spaces . 89 12.2.9 Operation . 89 12.3 Requirements for installers of information technology cabling . 90 12.4 Segregation of metallic information technology cabling and power supply cabling 90 13 Common infrastructures within m
38、ulti-tenant buildings . 90 13.1 General 90 13.2 Pathways and spaces in common areas 91 13.2.1 Pathways in common areas 91 13.2.2 Spaces in common areas 92 13.3 Requirements for planning installations of information technology cabling 92 13.3.1 Safety . 92 13.3.2 Documentation. 92 13.3.3 Pathways . 9
39、2 13.3.4 Pathway systems . 93 13.3.5 Cable management systems . 93 13.3.6 Closures . 93 13.3.7 Cabling . 93 13.3.8 Spaces . 94 13.4 Requirements for the installers of information technology cabling . 95 BS EN 50174-2:2018EN 50174-2:2018 (E) 7 13.5 Segregation of metallic information technology cabli
40、ng and power supply cabling 95 Annex A (informative) Application of responsibilities 96 Annex B (informative) Installation conditions 100 Annex C (normative) Additional information for remote powering installations . 101 C.1 General 101 C.2 Calculation of Tglobal101 C.3 Remote powering installation
41、of Category RP2 . 101 Annex D (informative) Equipment accommodation environments 104 Bibliography 105 Figures Figure 1 Schematic relationship between the EN 50174 series and other relevant standards . 11 Figure 2 Examples of non-conformant and conformant bend limiting techniques 25 Figure 3 Cable ar
42、rangement in a metallic section 29 Figure 4 Example of layered cable trays with smaller width upper trays 30 Figure 5 Example of accessible row of floor tiles to provide access to lower tray 31 Figure 6 Continuity of metallic cable management systems 46 Figure 7 Interruption of metallic cable manage
43、ment systems at fire barriers 46 Figure 8 Flowchart for cable separation calculation 56 Figure 9 Minimum separation of power supply and information technology cables . 57 Figure 10 Separation of power supply and information technology cables without dividers . 57 Figure 11 Separation of power supply
44、 and information technology cables with dividers 58 Figure 12 Separation of cable bundles to minimize heating . 60 Figure 13 Minimum dimensions for rooms housing cabling components only . 65 Figure 14 Minimum dimensions for rooms housing active equipment in addition to cabling components 66 Figure 1
45、5 Structure of generic cabling in industrial premises . 68 Figure 16 Pathways within homes . 72 Figure 17 Example of primary distribution space 73 Figure 18 Example of local distribution spaces and junction boxes . 74 Figure 19 Example of infrastructure supporting star cabling topology . 74 Figure 2
46、0 Example of common pathways and spaces in a multi-tenant building 91 Figure B.1 Illustration of installation environments . 100 BS EN 50174-2:2018EN 50174-2:2018 (E) 8 Tables Table 1 Contextual relationship between EN 50174 series and other standards relevant for information technology cabling syst
47、ems 12 Table 2 Stacking height for typical distances l . 26 Table 3 Typical elements of information exchange . 34 Table 4 Technology-independent channel length vs. temperature 38 Table 5 Temperature changes for various cable bundle sizes (Category RP3) 39 Table 6 Reduction factors for rectangular ca
48、ble groups . 40 Table 7 Classification of information technology cables 54 Table 8 Minimum separation S . 54 Table 9 Power cabling factor 55 Table 10 Separation requirements between metallic cabling and specific EMI sources . 59 Table 11 Minimum requirements for dimensions of primary distribution sp
49、aces 79 Table 12 Requirements for dimensions of secondary distribution spaces . 79 Table 13 Minimum dimensions of spaces allocated to junction boxes . 80 Table A.1 Responsibilities template 96 Table A.2 Example of completed responsibilities 98 Table C.1 Temperature changes for remote power installations of Category RP2 102 Table D.1 Equipment environmental specifications 104 BS EN 50174-2:2018EN 50174-2:2018 (E) 9 European foreword This document (EN 50174-2:2018) has been
