1、BSI Standards PublicationWB9423_BSI_StandardColCov_noK_AW:BSI FRONT COVERS 5/9/08 12:55 Page 1Information technology Cabling installation Part 2: Installation planning and practices insidebuildingsIncorporating corrigendum April 2011BS EN 50174-2:2009+A2:2014BS EN 50174-2:2009+A2:2014National forewo
2、rdThis British Standard is the UK implementation of EN 50174-2:2009+A2:2014, incorporating corrigendum April 2011. It supersedes BS EN 50174-2:2009+A1:2011 which is withdrawn.The start and finish of text introduced or altered by amendment is indicated in the text by tags. Tags indicating changes to
3、CENELEC text carry the number of the CENELEC amendment. For example, text altered by CENELEC amendment A1 is indicated by !“.The start and finish of text introduced or altered by corrigendum is indicated in the text by tags. Text altered by CEN corrigendum April 2011 is indicated in the text by tags
4、.The UK participation 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 provisi
5、ons of a contract. Users are responsible for its correct application. The British Standards Institution 2015. Published by BSI Standards Limited 2015ISBN 978 0 580 79912 9ICS 33.040.50; 35.110; 91.140.50Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Stan
6、dard was published under the authority of the Standards Policy and Strategy Committee on 31 July 2009.Amendments/corrigenda issued since publicationDate Text affectedImplementation of CENELEC amendment A1:2011 and corrigendum April 201131 July 2015 30 April 2015 Implementation of CENELEC amendment A
7、2:2014BRITISH STANDARDEUROPEAN STANDARD EN 50174-2NORME EUROPENNE EUROPISCHE NORM CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: Avenue Marnix 17, B - 1000 Brussels
8、2009 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 50174-2:2009 E ICS 35.110; 91.140.50 English version Information technology - Cabling installation - Part 2: Installation planning and practices inside buildings Technologies de
9、 linformation - Installation de cblages - Partie 2: Planification et pratiques dinstallation lintrieur des btiments Informationstechnik - Installation von Kommunikationsverkabelung - Teil 2: Installationsplanung und Installationspraktiken in Gebuden This European Standard was approved by CENELEC on
10、2009-05-01. 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
11、be obtained on application to the Central Secretariat 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 to t
12、he Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxemb
13、ourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. :2009+A Incorporating corrigendum April 2011October 20142Foreword This European Standard was prepared by the Technical Committee CENELEC TC 215, Electrotechnical as
14、pects of telecommunication equipment. The text of the draft was submitted to the formal vote and was approved by CENELEC as EN 50174-2 on 2009-05-01. This European Standard supersedes EN 50174-2:2000. The following dates were fixed: latest date by which the EN has to be implemented at national level
15、 by publication of an identical national standard or by endorsement (dop) 2010-05-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2012-05-01 EN 50174 comprises three parts. All three parts support the specification, implementation and operation of in
16、formation technology cabling. There are specific requirements for cabling systems that are in accordance with the design requirements of the EN 50173 series. However, the three parts also apply to cabling systems of any design including those in accordance with standards such as EN 50098-1 or EN 500
17、98-2. This part, EN 50174-2, is concerned with the planning and installation of information technology cabling using metallic cabling and optical fibre cabling inside buildings. It provides guidance as to the responsibilities of those involved and is intended to be referenced in relevant contracts.
18、Additional clauses containing normative requirements for specific types of premises will be added as amendments, or as revisions, to this standard. At the time of publication of this European Standard, the following clauses are planned: homes; data centres; operator buildings. It does not cover thos
19、e aspects of installation associated with the transmission of signals in free space between transmitters, receivers or their associated antenna systems (e.g. wireless, radio, microwave or satellite). This document contains two informative annexes: Annex A, providing information on EMC and protection
20、; Annex B, containing a minimum set of responsibilities applicable to installers and enabling national-specific amendment to define other responsibilities. _ 2 BS EN 50174-2:2009+A2:2014 EN 50174-2:2009+A2:2014 (E)Foreword to amendment A1 This amendment to the European Standard EN 50174-2:2009 was p
21、repared by the Technical Committee CENELEC TC 215, Electrotechnical aspects of telecommunication equipment. The text of the draft was submitted to the formal vote and was approved by CENELEC as amendment A1 to EN 50174-2:2009 on 2011-01-03. Attention is drawn to the possibility that some of the elem
22、ents of this document may be the subject of patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent rights. The following dates were fixed: latest date by which the amendment has to be implemented at national level by publication of an identical national s
23、tandard or by endorsement (dop) 2012-01-03 latest date by which the national standards conflicting with the amendment have to be withdrawn (dow) 2014-01-03 This amendment introduces: a new Clause 10 with specific requirements for installation of cabling in homes; a new Clause 11 with specific requir
24、ements for installation of cabling in data centres; detailed requirements and recommendations for installation of cabling in office (including commercial) (see Clause 8) premises and in industrial premises (see Clause 9); some technical and editorial modifications to the other clauses. This document
25、 (EN 50174-2:2009/A2:2014) has been prepared by CLC/TC 215 “Electrotechnical aspects of telecommunication equipment“. 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) 201
26、5-08-26 latest date by which the national standards conflicting with this document have to be withdrawn (dow) 2017-08-26 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 identify
27、ing any or all such patent rights. This amendment covers: a new Clause 12 on common pathways and spaces within multi-tenant buildings; a modified treatment of A.3 to ensure to that it addresses the planning and installation of electrical isolation components internal to buildings (EN 50174-3 will in
28、clude an Annex with the same topic for external to buildings); some technical and editorial changes to Clauses 3, 4, 5, 8 and 11. Foreword to amendment A2 3 BS EN 50174-2:2009+A2:2014 EN 50174-2:2009+A2:2014 (E)Contents Introduction . 1 Scope and conformance . 1.1 Scope 11 1.2 Conformance . 112 Norm
29、ative references . 3 Terms, definitions and abbreviations 14 3.1 Terms and definitions 14 3.2 Abbreviations 17 4 Requirements for planning installations of information technology cabling 18 4.1 Safety 18 4.2 Documentation 20 4.3 Pathways . 20 4.4 Pathway systems 21 4.5 Cable management systems 22 4.
30、6 Closures 24 4.7 Cabling 25 5 Requirements for the installation of information technology cabling 26 5.1 Safety 26 5.2 Documentation 28 5.3 Installation practice . 28 5.4 Surge protective devices . 34 5.5 Labelling 34 5.6 Testing. 34 5.7 Contractual acceptance 6 Segregation of metallic information
31、technology cabling and 6.1 General 35 6.2 Requirements 36 6.3 Recommendations 43 7 Electricity distribution systems and lightning protection . 7.1 Electricity distribution systems 44 7.2 Protection against lightning and induced overvoltages . 46 8 Office (commercial) premises . 46 8.1 General 46 8.2
32、 Office (commercial) premises cabling design overview 47 8 11 124.9 . 25Spaces .355.8 . 35 Operationpower supply cabling 3544#4.8 Filtering and electrical isolation components and surge protective devices $25 4 BS EN 50174-2:2009+A2:2014 EN 50174-2:2009+A2:2014 (E)4.10 Planning for repair # . . 26$9
33、 Industrial premises 57 9.1 General 57 9.2 Industrial premises cabling design overview 57 9.3 Requirements for planning installations of information technology cabling 58 9.4 Requirements for installers of information technology cabling . 61 9.5 Segregation of metallic information technology cabling
34、 and power supply cabling . 61 Annex A (informative) EMC and protection A.1 Coupling mechanisms and countermeasures . 104A.2 The EMC concept . 107 A.3 Filtering and electrical isolation components and surge protective devices . 111 Annex B (informative) Application of responsibilities 117 Bibliograp
35、hy Figures Figure 1 Schematic relationship between the EN 5017 series and other relevant standards Figure 2 Cable arrangement in a metallic section . Figure 3 Continuity of metallic cable management systems . 30 Figure 4 Interruption of metallic cable management systems at fire barriers . 30 12010 H
36、omes 10.1 General 10.2 Home cabling design overview 10.3 Requirements for planning installations of information technology cabling 10.4 Requirements for installers of information technology cabling 10.5 Segregation of metallic information technology cabling and power supply cabling . 6262. 62. 65727
37、211 Data centres 11.1 General 11.2 Data centre cabling design and planning overview 11.3 Requirements for planning installations of information technology cabling 11.4 Requirements for installers of information technology cabling 11.5 Segregation of metallic information technology cabling and power
38、supply cabling 72. 727973. 9090#$3 5 BS EN 50174-2:2009+A2:2014 EN 50174-2:2009+A2:2014 (E)12 Common infrastructures within multi-tenant buildings 12.1 General #12.2 Sp aces in common areas 12.3Pathways in common areas12.4Requirements for planning installations of information technology cabling12.5
39、Requirements for the installers of information technology cabling12.6 Segregation of metallic information technology cabling and power supply cabling90. 919192103.103924$8.4 Requirements for installers of information technology cabling . 56 8.5 Segregation of metallic information technology cabling
40、and power supply cabling . 568.3 Requirements for planning installations of information technology cabling 47 Figure A.7 Mounting of filters Figure A.8 Installation of power filter .Figure A.9 Installation guidelines for transformers 115Figure A.10 Installation guidelines for optocouplers . 115 Figu
41、re A.11 Short connections of surge protective devices 116Figure A.1 Screened cables reduce capacitive coupling 104 Figure A.2 Electrical field to cable, capacitive coupling example 106 Figure A.3 Magnetic field to loop, inductive coupling example .106 Figure A.4 Magnetic field .107 Figure A.5 Earthi
42、ng arrangement 107 Figure A.6 Earthing and bonding of filters . 112 Figure 16 Example of infrastructure supporting star cabling topology Figure 17 Example of infrastructure supporting various cabling topologies Figure 18 Example of primary distribution space Figure 19 Example of local distribution s
43、paces and junction boxes 63. 64. 68. 70Figure 20 Growing complexity of point-to-point connections Figure 21 Impact of fibre optic jumper cabling changes with direct point-to-point connections75 Figure 22 Example of direct point-to-point cabling Figure 23 Structured fibre optic cabling Figure 24 Mana
44、ging changes with a structured fibre optic cabling system Figure 25 Generic data centre cabling in accordance with EN 50173-5 Figure 26 Generic office cabling in accordance with EN 50173-2 Figure 27 Functional elements and connections providing redundancy within generic cabling in accordance with EN
45、 50173-5 7475. 7677. 78. 7881919798 6 BS EN 50174-2:2009+A2:2014 EN 50174-2:2009+A2:2014 (E)Figure 13 Structure of generic cabling in industrial premises . 58 Figure 10 Example of accessible row of floor tiles to provide access to lower tray.52 Figure 11 Minimum dimensions for rooms housing cabling
46、components only.55 Figure 12 Minimum dimensions for rooms housing active equipment in addition to cabling components .56 Figure 14 Configuration of apparatus-based functional elements within industrial premises . 58 Figure 15 Pathways within homes 63Figure 9 Example of layered cable trays with small
47、er width upper trays 51113113 Figure 28 Example of common pathways and spaces in a multi-tenant building Figure 29 Example of layered cable trays with smaller width upper traysFigure 30 Example of accessible row of floor tiles to provide access to lower tray #$.TablesTable 1 Contextual relationship
48、between EN 50174 series and other standards relevant for information technology cabling systems .10 Figure 6 Separation of power supply and information technology cables without dividers 40 Figure 7 Separation of power supply and information technology cables with dividers . 41 Figure 8 Separation o
49、f cables in pathway systems . 42 Figure 5 Flowchart for cable separation calculation 39 7 BS EN 50174-2:2009+A2:2014 EN 50174-2:2009+A2:2014 (E)Table 7 Environmental requirements for office premises Table 8 Environmental requirements for industrial premises Table 9 Minimum requirements for dimensions of primary distribution spaces Table 10 Requirements for dimensions of secondary distribution spaces Table
