1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Information technology Cabling installationPart 1: Installation specification and quality assuranceBS EN 50174-1:2018EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 50174-1 June 2018 ICS 35.110 Supersedes EN 50174-
2、1:2009 English Version Information technology - Cabling installation - Part 1: Installation specification and quality assurance Technologies de linformation - Installation de cblages - Partie 1 : Spcification de linstallation et assurance de la qualit Informationstechnik - Installation von Kommunika
3、tionsverkabelung - Teil 1: Installationsspezifikation und Qualittssicherung 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 the status of a nat
4、ional 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 (English, French, German).
5、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 Austria, Belgium, Bul
6、garia, 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, Slovenia, Spain, Sweden
7、, 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 All rights of explo
8、itation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN 50174-1:2018 E National forewordThis British Standard is the UK implementation of EN 50174-1:2018. It supersedes BS EN 50174-1:2009+A2:2014, which is withdrawn.The UK participation in its preparation was entrust
9、ed 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 contract. Users are responsible for its cor
10、rect application. The British Standards Institution 2018 Published by BSI Standards Limited 2018ISBN 978 0 580 98720 5ICS 33.040.50; 35.110Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy
11、and Strategy Committee on 31 July 2018.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 50174-1:2018EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 50174-1 June 2018 ICS 35.110 Supersedes EN 50174-1:2009 English Version Information technology - Cabling insta
12、llation - Part 1: Installation specification and quality assurance Technologies de linformation - Installation de cblages - Partie 1 : Spcification de linstallation et assurance de la qualit Informationstechnik - Installation von Kommunikationsverkabelung - Teil 1: Installationsspezifikation und Qua
13、littssicherung 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 the status of a national standard without any alteration. Up-to-date lists and b
14、ibliographical 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
15、 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 Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia,
16、 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, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. European Commit
17、tee 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 All rights of exploitation in any form and by any means reserved worldwide for C
18、ENELEC Members. Ref. No. EN 50174-1:2018 E BS EN 50174-1:2018EN 50174-1:2018 (E) 2 Contents Page European foreword . 7 Introduction . 8 1 Scope and conformance 10 1.1 Scope . 10 1.2 Conformance . 10 2 Normative references . 10 3 Terms, definitions and abbreviations 11 3.1 Terms and definitions 11 3.
19、2 Abbreviations . 16 4 Requirements for specifying installations of information technology cabling . 16 4.1 Documentation . 16 4.1.1 General 16 4.1.2 Installation specification . 17 4.1.3 Technical specification . 19 4.1.4 Scope of work 25 4.1.5 Quality plan 27 4.1.6 Change control 27 4.2 Planning .
20、 27 4.2.1 Power supply/information technology cabling segregation requirements . 27 4.2.2 Building entrance facilities (BEF)s . 27 4.2.3 Pathways . 28 4.2.4 Information technology cabling recommendations 30 4.2.5 Cabinets, frames and racks . 30 4.2.6 Closures . 31 4.2.7 Termination points . 31 4.2.8
21、 Spaces . 32 4.3 Products and processes 33 4.3.1 General requirements 33 4.3.2 Pathway systems . 33 4.3.3 Components 34 4.3.4 Labels 34 4.4 External network service provision 35 4.4.1 Requirements 35 BS EN 50174-1:2018EN 50174-1:2018 (E) 3 4.4.2 Recommendations . 35 4.5 Operating procedures 35 4.5.1
22、 General requirements 35 4.5.2 Administration requirements 35 4.5.3 Protection from electrostatic discharge (ESD). 38 4.6 Maintenance 39 4.6.1 Requirements 39 4.6.2 Recommendations . 39 5 Requirements for installers of information technology cabling . 40 5.1 Documentation and administration 40 5.1.1
23、 Installation specification requirements . 40 5.1.2 Quality plan 40 5.1.3 Installation schedule requirements 41 5.1.4 Installation instructions requirements 41 5.1.5 Change control requirements 42 5.1.6 Documentation of the installed cabling 42 5.2 Products and processes 42 5.2.1 Compatibility of ca
24、bling components . 42 5.2.2 Cabling component acceptance 42 5.2.3 Calibration and normalization of inspection and test equipment . 43 5.2.4 Pathway systems . 43 5.2.5 Labelling 43 5.3 Power supplies . 43 5.4 Surveys 43 5.4.1 Pathways . 43 5.4.2 Cabinets, frames and racks . 43 5.4.3 Closures . 43 6 I
25、nstallation and operational complexity . 44 6.1 Requirements . 44 6.2 Recommendations . 44 Annex A (normative) Minimum requirements for technical specifications and quality plans 45 A.1 General 45 A.2 Technical specification 45 A.3 Quality plan . 45 Annex B (normative) Polarity maintenance: Connecti
26、ng hardware for multiple optical fibres 46 B.1 General 46 BS EN 50174-1:2018EN 50174-1:2018 (E) 4 B.2 Duplex connecting hardware interfaces 46 B.2.1 Duplex plugs, adapters and cords 46 B.2.2 Polarity of installed cabling segments . 48 B.2.3 The Symmetrical Positioning Method . 48 B.2.4 The Reverse-P
27、air Positioning Method 49 Annex C (informative) Polarity maintenance: Connecting hardware interfaces for arrays . 50 C.1 Connecting hardware interfaces for arrays with 12 optical fibres per row 50 C.1.1 General . 50 C.1.2 Array connecting hardware components . 50 C.1.2.1 General 50 C.1.2.2 Cables an
28、d array connector patch cords 50 C.1.2.3 Array adapters 51 C.1.2.4 Transition assemblies for duplex cabling . 51 C.1.3 Array Connectivity Method 52 C.1.3.1 Duplex cabling . 52 C.1.3.2 Array cabling 53 C.2 Connecting hardware interfaces for arrays with more than 12 optical fibres per row . 54 Annex D
29、 (informative) Terminating balanced cables on terminating blocks in distributors 55 D.1 General 55 D.2 The use of the same type of connector at each end of a cable . 55 D.3 The use of a different type of connector at each end of a cable . 55 D.4 Relation between the pins of connectors according to E
30、N 60603-7 and the tags of a terminating block 55 Annex E (informative) Compatibility between transmission systems (balanced and unbalanced) sharing the same cable sheath within information technology cabling . 57 E.1 General 57 E.2 Recommendations concerning cable sharing 57 E.3 Factors to be taken
31、into account to ensure satisfactory performance 57 E.3.1 General . 57 E.3.2 Factors concerning the disturbing transmission system. 58 E.3.3 Cabling characteristics. 58 E.3.3.1 Crosstalk loss 58 E.3.3.2 Insertion loss 58 E.3.3.3 Termination 59 BS EN 50174-1:2018EN 50174-1:2018 (E) 5 E.3.4 The disturb
32、ed transmission system . 59 E.4 Guidelines for reducing interference between transmission systems within the same cable sheath 59 E.5 Cabling qualification 59 E.6 Particular installation requirements and recommendations . 59 E.7 Cable management 59 E.8 Regulatory aspects 60 Annex F (normative) Sampl
33、ing plans and marginal results 61 F.1 Sampling plans . 61 F.1.1 General . 61 F.1.2 Balanced cabling in accordance with the EN 50173 series of standards . 61 F.1.3 Optical fibre cabling in accordance with the EN 50173 series of standards 63 F.2 Marginal results 64 F.2.1 Marginal test results . 64 F.2
34、.2 Requirements 65 F.2.3 Recommendations 65 F.2.4 Balanced cabling in accordance with the EN 50173 series of standards . 65 F.2.5 Optical fibre cabling 65 F.3 Non-compliant results . 66 Annex G (informative) “Reaction to fire” performance of cables 67 G.1 EuroClass designation 67 G.2 Application of
35、cables of a given EuroClass designation . 67 Bibliography 69 Figures Figure 1 Schematic relationship between the EN 50174 series and other relevant standards . 9 Figure 2 Quality assurance schematic 17 Figure 3 Conductor current for ISO/IEC/IEEE 8802-3 remote powering applications 21 Figure 4 Exampl
36、es of labels indicating RP Category of remote powering installation 38 Figure B.1 Duplex connecting hardware plug 47 Figure B.2 Duplex connecting adapter 47 Figure B.3 Duplex patch cord . 47 Figure B.4 Views of crossover patch cords 48 BS EN 50174-1:2018EN 50174-1:2018 (E) 6 Figure B.5 Optical fibre
37、 sequences and adapter orientation in patch panel for the Symmetrical Position Method 49 Figure B.6 Optical fibre sequences and adapter orientation in patch panel for the Reverse-Pair Position Method 49 Figure C.1 Array connector cable or patch cord (key-up to key-up) 51 Figure C.2 Array adapter wit
38、h aligned keyways . 51 Figure C.3 Transition assembly . 52 Figure C.4 Connectivity method for duplex cabling 53 Figure C.5 Connectivity method for array cabling . 54 Figure F.1 Schematic of test result boundaries . 65 Tables Table 1 Contextual relationship between EN 50174 series and other standards
39、 relevant for information technology cabling systems 9 Table 2 Remote powering cabling installation Categories and controls . 21 Table 3 Minimum requirements of administration systems 36 Table 4 Minimum requirements of operational administration systems . 37 Table 5 Level of installation complexity
40、44 Table 6 Level of operational complexity 44 Table A.1 Minimum requirements for technical specification. 45 Table A.2 Minimum requirements for quality plan . 45 Table B.1 Optical fibre colour code scheme . 46 Table D.1 Examples of the relations between the EN 606037 series pins and the tags of the
41、terminating block 56 Table F.1 Installed balanced cabling test parameters . 61 Table F.2 Installed optical fibre cabling test parameters . 64 Table G.1 EuroClass designations and their foundation standards 68 BS EN 50174-1:2018EN 50174-1:2018 (E) 7 European foreword This document (EN 50174-1:2018) h
42、as been prepared by Technical Committee 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) 2019-05-21
43、 latest date by which the national standards conflicting with this document have to be withdrawn (dow) 2021-05-21 This document supersedes EN 50174-1:2009, EN 50174-1:2009/A1:2011 and EN 50174-1:2009/A2:2014. EN 50174 comprises three parts. All three parts support the specification, implementation a
44、nd operation of information 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
45、 50700. This part, EN 50174-1, is concerned with specification, quality assurance, documentation and administration of information technology cabling to be installed, together with its subsequent operation and maintenance. It sets out the responsibilities of information technology cabling installers
46、 and premises owners or appointed representatives separately, and is intended to be referenced in relevant contracts. It does not cover those aspects of installation associated with the transmission of signals in free space between transmitters, receivers or their associated antenna systems (e.g. wi
47、reless, radio, microwave or satellite). This edition of EN 50174-1: a) revises the requirements for remote powering to support power levels offered by IEEE 802.3bt (in preparation); b) updates various requirements (e.g. in 4.2.5.1 on racks, frames and cabinets and in Table 4 on the level of installa
48、tion complexity); c) revises Annex B on optical fibre connecting hardware, resulting an normative requirements (Annex B) and informative recommendations (Annex C); d) introduces a new Annex G with information regarding EuroClasses for the specification of the “reaction to fire” performance of cables
49、. BS EN 50174-1:2018EN 50174-1:2018 (E) 8 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 utilities, 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 organizations effectiveness.
