BS EN 50174-3-2013 Information technology Cabling installation Installation planning and practices outside buildings《信息技术 布线安装 建筑物外部的安装计划和实践》.pdf

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1、BSI Standards PublicationBS EN 50174-3:2013Information technology Cabling installationPart 3: Installation planning and practices outside buildingsBS EN 50174-3:2013 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 50174-3:2013.It supersedes BS EN 50174-3:2003 wh

2、ich is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee TCT/7, Telecommunications - Installation requirements.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the nec

3、essaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2013. Published by BSI StandardsLimited 2013ISBN 978 0 580 78405 7ICS 33.040.50; 35.110Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Stan

4、dard was published under the authority of theStandards Policy and Strategy Committee on 31 October 2013.Amendments issued since publicationDate Text affectedBS EN 50174-3:2013EUROPEAN STANDARD EN 50174-3 NORME EUROPENNE EUROPISCHE NORM October 2013 CENELEC European Committee for Electrotechnical Sta

5、ndardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC 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

6、50174-3:2013 E ICS 35.110 Supersedes EN 50174-3:2003 English version Information technology - Cabling installation - Part 3: Installation planning and practices outside buildings Technologies de linformation - Installation de cblage - Partie 3: Planification et pratiques dinstallation lextrieur des

7、btiments Informationstechnik - Installation von Kommunikationsverkabelung - Teil 3: Installationsplanung und Installationspraktiken im Freien This European Standard was approved by CENELEC on 2013-09-02. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate th

8、e 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 obtained on application to the CEN-CENELEC Management Centre or to any CENELEC member. This European Stan

9、dard 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 the CEN-CENELEC Management Centre has the same status as the official versions. CENELEC members are

10、 the national electrotechnical 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, Po

11、land, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 50174-3:2013EN 50174-3:2013 - 2 - Contents Page Foreword . 5 Introduction . 6 1 Scope and conformance 9 1.1 Scope . 9 1.2 Conformance . 10 2 Normative references . 10 3 Terms, definitions an

12、d abbreviations . 13 3.1 Terms and definitions 13 3.2 Abbreviations 15 4 Requirements for planning installations of information technology cabling . 15 4.1 Safety . 15 4.2 Documentation 17 4.3 Pathways . 17 4.4 Pathway systems 28 4.5 Pathway systems other than for core and access networks . 32 4.6 C

13、losures 36 4.7 Cabling . 37 4.8 Spaces and structures . 39 4.9 Spaces and structures other than for core and access networks 42 4.10 Administration 46 5 Requirements for the installation of information technology cabling 46 5.1 Safety . 46 5.2 Documentation 48 5.3 Installation practices 48 5.4 Label

14、ling 63 5.5 Testing . 63 5.6 Contractual acceptance . 63 5.7 Operation . 63 6 Segregation . 63 6.1 General. 63 6.2 Segregation of underground information technology cabling 64 6.3 Segregation of aerial information technology cabling . 67 6.4 Segregation with respect to specific sources of EMI . 71 7

15、 Additional installation practices for specific sites and services . 73 7.1 Hospitals 73 7.2 Airports 73 7.3 Nuclear areas 73 7.4 Chemical manufacturing areas . 74 7.5 Railways (overground and underground) 74 Annex A (informative) EMC and protection 77 A.1 Coupling mechanisms and countermeasures . 7

16、7 A.2 The EMC concept 81 A.3 Filtering and electrical isolation components and surge protective devices 82 Annex B (informative) Earth potential rise (EPR) 88 B.1 General. 88 B.2 Limit of the hot zone . 88 Annex C (informative) Application of responsibilities 90 Annex D (informative) A-deviations 93

17、 Bibliography 96 BS EN 50174-3:2013- 3 - EN 50174-3:2013 Figures Figure 1 Schematic relationship between EN 50174 series and other relevant standards 7 Figure 2 Examples of areas covered by this document . 10 Figure 3 Example of cabling installations outside buildings 18 Figure 4 Cable arrangement i

18、n a metallic section 31 Figure 5 Example of wind vibration damper . 35 Figure 6 Example of an underground conduit entrance for information technology cables into a building 43 Figure 7 Example of the use of a galvanic isolation device 44 Figure 8 Continuity of metallic cable management systems . 52

19、Figure 9 Interruption of metallic cable management systems at fire barriers. 52 Figure 10 Example showing the protection of underground information technology cables when located next to power supply cables 65 Figure 11 Separation of adjacent infrastructures . 68 Figure 12 Separation distances on su

20、pporting structures 70 Figure 13 Separation distance on supporting structures with lighting devices . 70 Figure 14 Clearance between information technology cabling and standard gauge railways 74 Figure 15 Clearances providing protection to information technology cabling against falling contact wires

21、 76 Figure A.1 Screened cables reduce capacitive coupling. 78 Figure A.2 Electrical field to cable, capacitive coupling example 79 Figure A.3 Magnetic field to loop, inductive coupling example 79 Figure A.4 Magnetic field 80 Figure A.5 Earthing arrangement . 81 Figure A.6 Earthing and bonding of fil

22、ters 83 Figure A.7 Mounting of filters . 84 Figure A.8 Installation of power filter . 84 Figure A.9 Installation guidelines for transformers . 86 Figure A.10 Installation guidelines for optocouplers . 86 Figure A.11 Short connections of surge protective devices . 87 Figure B.1 Definition of hot zone

23、 88 Tables Table 1 Contextual relationship between EN 50174 series and other standards relevant for information technology cabling systems . 8 Table 2 Design and planning of underground pathways . 19 Table 3 Requirements and recommendation for pathway depths below finished surface 20 Table 4 Design

24、and planning of dedicated aerial pathways 23 Table 5 Minimum installed clearances above ground for aerial cables . 25 BS EN 50174-3:2013EN 50174-3:2013 - 4 - Table 6 Stacking height for typical distances L 30 Table 7 Family and detailed specifications for outdoor optical fibre cables . 38 Table 8 Mi

25、nimum distance between information technology cables and earthed electrodes of power systems in rural and urban environments 66 Table 9 Minimum distance between information technology cables and earthed electrodes of power systems in accordance with ITU-T K.8 66 Table 10 Minimum clearances and prote

26、ctive measures at crossings between information technology cables and various underground services . 67 Table 11 Minimum clearances between aerial information technology and overhead power supply cabling . 68 Table 12 Example of limit distances 72 Table A.1 EMC checklist 82 Table B.1 Minimum distanc

27、e (HV installations less than 25 kV) . 89 Table B.2 Minimum distance (HV installations exceeding 25 kV) . 89 Table C.1 Responsibilities template . 91 Table C.2 Example of completed responsibilities 92 BS EN 50174-3:2013- 5 - EN 50174-3:2013 Foreword This document (EN 50174-3:2013) has been prepared

28、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) 2014-09-02 latest date by which the national sta

29、ndards conflicting with this document have to be withdrawn (dow) 2016-09-02 This document supersedes EN 50174-3:2003. EN 50174 comprises three parts: - EN 50174-1, Information technology Cabling installation Part 1: Installation specification and quality assurance; - EN 50174-2, Information technolo

30、gy Cabling installation Part 2: Installation planning and practices inside buildings; - EN 50174-3, Information technology Cabling installation Part 3: Installation planning and practices outside buildings (the present document). All three parts support the specification, implementation and operatio

31、n of information technology cabling. There are specific requirements for cabling systems that are in accordance with the design requirements of 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

32、50098-2. This part, EN 50174-3, is concerned with the planning and installation of information technology cabling using metallic cabling and optical fibre cabling outside buildings; it is not confined to the border of a particular premises and includes wide area information technology cabling of any

33、 kind. It provides guidance as to the responsibilities of those involved and is intended to be referenced in relevant contracts. EN 50174-3:2003 (the 1stedition) has been completely revised in the light of the technical evolution and the feedback received from the users of the 1stedition. Major chan

34、ges include: a) restructuring of the contents to align with the structure of EN 50174-1:2009 and EN 50174-2:2009 (including their associated amendments); in particular, the pertinent requirements and recommendations have been clearly distinguished and are presented in separate subclauses; b) where a

35、ppropriate, text has been aligned with that of EN 50174-1 and EN 50174-2; c) requirements and recommendations for wide area information technology cabling have been elaborated in greater detail; d) a new Annex A on EMC and protection (the existing Annex A is renumbered as Annex B) and a new Annex C

36、on the application of responsibilities have been added. BS EN 50174-3:2013EN 50174-3:2013 - 6 - Introduction The importance of services delivered by information technology cabling infrastructure is similar to that of utilities such as heating, lighting and electricity supplies. As with those utiliti

37、es, interruptions to service can have a serious impact. Poor quality of service due to lack of planning, use of inappropriate components, incorrect installation, poor administration or inadequate support can threaten an organisations effectiveness. There are four phases in the successful implementat

38、ion of information technology cabling. These are: a) design; b) specification the detailed requirement for the cabling, including the planning of its accommodation and associated building services addressing specific environments (e.g. electromagnetic) together with the quality assurance requirement

39、s to be applied; c) installation in accordance with the requirements of the specification; d) operation the management of connectivity and the maintenance of transmission performance during the life of the cabling. This European Standard is in three parts and addresses the specification, installatio

40、n and operational aspects. EN 50173 series and other application standards cover design issues. EN 50174-1 is used during the specification phase. It addresses the: installation specification, quality assurance documentation and procedures; documentation and administration; operation and maintenance

41、. This part, EN 50174-3, and EN 50174-2 are intended to be used by the personnel directly involved in the planning aspects (of the specification phase) and installation phase. EN 50174-2 is applicable inside buildings and EN 50174-3 is applicable outside buildings. This European Standard is applicab

42、le to all types of information technology cabling outside buildings, including generic cabling systems designed in accordance with EN 50173 series. The requirements and recommendations of this European Standard may be applied to cabling that is defined as part of the building. The planning of the pa

43、thway systems, spaces and structures within the core and access network cabling as described in Figure 2 that are owned by access providers is excluded except for requirements and recommendations that provide basic safety, function and environmental objectives for mechanical, ingress and climatic ch

44、aracteristics (i.e. excluding pathway dimensions, distribution of spaces and similar constraints based on specific transmission methods). This European Standard is also relevant to: architects, building designers and builders; main contractors; designers, suppliers, installers, inspectors (auditors)

45、, maintainers and owners of information technology cabling; public network providers and local service providers; end users. This part, EN 50174-3, contains requirements and recommendations relating to the installation planning and practices by defining: BS EN 50174-3:2013- 7 - EN 50174-3:2013 i) pl

46、anning strategy (road map) and guidance depending on the application, electromagnetic environment, building infrastructure and facilities, etc.; ii) planning and installation requirements for metallic and optical fibre information technology cabling depending on the application, electromagnetic envi

47、ronment, building infrastructure and facilities, etc.; iii) the practices and procedures to be adopted to ensure that the cabling is installed in accordance with the specification. Figure 1 and Table 1 show the schematic and contextual relationships between the standards produced by CLC/TC 215 for i

48、nformation technology cabling, namely: 1) this part and other parts of EN 50174 series; 2) generic cabling design (EN 50173 series); 3) application dependent cabling design (e.g. EN 50098 series); 4) testing of installed cabling (EN 50346); 5) equipotential bonding requirements (EN 50310). EN 50173-

49、1: Information technology -Generic cabling systems - General requirementsEN 50098-1: Customer premises cabling for information technology - ISDN basic accessEN 50174-2: Information technology - Cabling installation - Installation planning and practices inside buildingsEN 50174-3: Information technology - Cabling installation - Installation planning and practices outside buildingsEN 50174-1: Information technology - Cabling installation - Installation

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