Information technology - Cabling installation - Part 3: Installation planning and practices outside buildings

This European Standard specifies requirements and provides recommendations for the following aspects of information technology cabling: a) planning; b) installation practice. This European Standard is applicable 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 requirements and recommendations of Clauses 4, 5 and 6 of this European Standard are subject to any site-specific requirements and recommendations of Clause 7. The planning of the pathway 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 characteristics (i.e. excluding pathway dimensions, distribution of spaces and similar constraints based on specific transmission methods). The installation practices applicable to all cabling installation methods are included by the provision of the necessary planning requirements and recommendations associated with each one with the exception of information technology cabling installed: – around or within aerial power supply or associated earth conductors; – on infrastructures carrying power supplies in excess of AC/DC 25 kV. This European Standard: 1) details the considerations for satisfactory installation and operation of information technology cabling; 2) excludes specific requirements applicable to other cabling systems (e.g. power supply cabling); however, it takes account of the effects other cabling systems may have on the installation of information technology cabling (and vice versa) and gives general advice; 3) excludes those 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 European Standard is applicable to certain hazardous environments. It does not exclude additional requirements which are applicable in particular circumstances, defined by e.g. electricity supply and electrified railways. The requirements within this European Standard do not cover any additional requirements for the information technology cables installed in hazardous or stressful environments e.g. electricity supply and electric railway locations (see Clause 7).

Informationstechnik - Installation von Kommunikationsverkabelung - Teil 3: Installationsplanung und Installationspraktiken im Freien

Technologies de l'information - Installation de câblage - Partie 3: Planification et pratiques d'installation à l'extérieur des bâtiments

La présente Norme européenne spécifie les exigences et les recommandations portant sur les aspects suivants du câblage pour les technologies de l’information : a) planification ; b) pratique d’installation. La présente Norme européenne s’applique à tous les types de câblage pour les technologies de l’information à l’extérieur des bâtiments, y compris les systèmes de câblage générique conçus conformément à la série de normes EN 50173. Les exigences et recommandations de la présente Norme européenne peuvent s’appliquer au câblage faisant partie intégrante du bâtiment. Les exigences et recommandations des Articles 4, 5 et 6 de la présente norme européenne font l’objet des exigences et recommandations spécifiques au site de l’Article 7. La planification des systèmes de cheminements, des espaces et des structures centrales et les câbles du réseau d’accès (voir Figure 2) qui sont propriétés des fournisseurs d’accès est exclue, à l’exception des exigences et recommandations portant sur les objectifs de base en matière de sécurité, de fonctionnement et d’environnement liés aux caractéristiques mécaniques, d’entrée et climatiques (c’est-à-dire à l’exclusion des dimensions du cheminement, de la répartition des espaces et des contraintes analogues reposant sur des méthodes de transmission spécifiques). Les pratiques d’installation applicables à toutes les méthodes d’installation des câbles sont incluses par la disposition d’exigences et de recommandations de planification nécessaires associées à chacune d’elles, à l’exception du câblage pour les technologies de l’information installé : - autour et à l’intérieur de l’alimentation électrique aérienne ou des conducteurs de terre associés ; – sur les infrastructures portant les alimentations électriques de plus de 25 kV CA/CC. La présente Norme européenne : 1) détaille les considérations relatives à une installation et un fonctionnement satisfaisants du câblage pour les technologies de l’information ; 2) exclut les exigences particulières applicables aux autres systèmes de câblage (les câbles d’alimentation, par exemple). Toutefois, elle tient compte des effets que d’autres systèmes de câblage peuvent avoir sur l’installation du câblage pour les technologies de l’information (et inversement) et donne des conseils généraux ; 3) exclut les aspects de l’installation liés à la transmission des signaux dans l’espace libre entre les émetteurs, les récepteurs ou leurs systèmes d’antenne associés (sans fil, radio, micro-onde ou satellite, par exemple). La présente norme européenne s’applique à certains environnements dangereux. Elle n’exclut pas les exigences supplémentaires applicables dans des circonstances particulières, définies par l’alimentation électrique et les chemins de fer électrifiés, par exemple. Les exigences de la présente norme européenne ne couvrent pas les exigences supplémentaires relatives aux câbles pour les technologies de l’information installés dans des environnements dangereux ou soumis à des contraintes, par exemple emplacements d’alimentation et de chemins de fer électrique (voir Article 7).

Informacijska tehnologija - Pokabljenje - 3. del: Načrtovanje inštalacij in tehnike dela zunaj zgradb

Ta evropski standard določa zahteve in vsebuje priporočila za naslednja vidika kablov za informacijsko tehnologijo: a) načrtovanje; b) tehnike dela pri polaganju. Ta evropski standard se uporablja za vse vrste kablov za informacijsko tehnologijo zunaj zgradb, vključno z generičnimi kabelskimi sistemi, izdelanimi v skladu s skupino standardov EN 50173. Zahteve in priporočila iz tega evropskega standarda se lahko uporabljajo za kable, ki so opredeljeni kot del zgradbe. Zahteve in priporočila iz točk 4, 5 in 6 tega evropskega standarda so odvisni od morebitnih zahtev in priporočil, specifičnih za kraje, iz točke 7. Načrtovanje sistemov poti, prostorov in struktur znotraj jedrnega in dostopnega omrežnega kabelskega sistema s slike 2 v lasti ponudnikov dostopa je izključeno, razen zahtev ter priporočil, ki zagotavljajo cilje glede osnovne varnosti, funkcij in okolja za mehanske, vdorne in podnebne značilnosti (tj. brez dimenzij poti, razporeditve prostorov ter podobnih omejitev na podlagi posebnih prenosnih metod). 1. Področje uporabe in skladnost 1.1 Področje uporabe Ta evropski standard določa zahteve in vsebuje priporočila za naslednja vidika kablov za informacijsko tehnologijo: a) načrtovanje; b) tehnike dela pri polaganju. Ta evropski standard se uporablja za vse vrste kablov za informacijsko tehnologijo zunaj zgradb, vključno z generičnimi kabelskimi sistemi, izdelanimi v skladu s skupino standardov EN 50173. Zahteve in priporočila iz tega evropskega standarda se lahko uporabljajo za kable, ki so opredeljeni kot del zgradbe. Zahteve in priporočila iz točk 4, 5 in 6 tega evropskega standarda so odvisni od morebitnih zahtev in priporočil, specifičnih za kraje, iz točke 7. Načrtovanje sistemov poti, prostorov in struktur znotraj jedrnega in dostopnega omrežnega kabelskega sistema s slike 2 v lasti ponudnikov dostopa je izključeno, razen zahtev ter priporočil, ki zagotavljajo cilje glede osnovne varnosti, funkcij in okolja za mehanske, vdorne in podnebne značilnosti (tj. brez dimenzij poti, razporeditve prostorov ter podobnih omejitev na podlagi posebnih prenosnih metod). Tehnike dela pri polaganju, ki se uporabljajo za vse metode pokabljenja, so vključene z zagotavljanjem potrebnih zahtev in priporočil za načrtovanje, povezanih z vsako od njih, razen kablov za informacijsko tehnologijo, ki so položeni: – okrog ali znotraj nadzemnega napajanja ali povezanih ozemljitvenih vodnikov; – na infrastrukturah, ki prenašajo napajanje nad 25 kV izmeničnega/enosmernega toka. Ta evropski standard: 1) opredeljuje premisleke za zadovoljivo pokabljenje in delovanje kablov za informacijsko tehnologijo; 2) izključuje posebne zahteve, ki se uporabljajo za druge kabelske sisteme (npr. napajalne kable); vendar pa upošteva učinke, ki jih imajo lahko drugi kabelski sistemi na pokabljenje kablov za informacijsko tehnologijo (in obratno) ter vsebuje splošne nasvete; 3) izključuje vidike pokabljenja, ki so povezani s prenosom signalov na prostem med oddajniki, sprejemniki ali njihovimi povezanimi antenskimi sistemi (npr. brezžični, radijski, mikrovalovni ali satelitski prenos). Ta evropski standard se uporablja za nekatera nevarna okolja. Standard ne izključuje dodatnih zahtev, ki se uporabljajo v posebnih okoliščinah, opredeljenih npr. z oskrbo z električno energijo in elektrificiranimi železnicami.

General Information

Status
Published
Publication Date
17-Oct-2013
Current Stage
6060 - Document made available
Due Date
18-Oct-2013
Completion Date
18-Oct-2013

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SLOVENSKI STANDARD
SIST EN 50174-3:2014
01-januar-2014
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SIST EN 50174-3:2005

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Information technology - Cabling installation - Part 3: Installation planning and practices

outside buildings
Informationstechnik - Installation von Kommunikationsverkabelung - Teil 3:
Installationsplanung und -praktiken im Freien

Technologies de l'information - Installation de câblage - Partie 3: Planification et

pratiques d'installation à l'extérieur des bâtiments
Ta slovenski standard je istoveten z: EN 50174-3:2013
ICS:
33.040.50 Vodi, zveze in tokokrogi Lines, connections and
circuits
35.110 Omreževanje Networking
SIST EN 50174-3:2014 en,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN 50174-3:2014
---------------------- Page: 2 ----------------------
SIST EN 50174-3:2014
EUROPEAN STANDARD
EN 50174-3
NORME EUROPÉENNE
October 2013
EUROPÄISCHE NORM
ICS 35.110 Supersedes EN 50174-3:2003
English version
Information technology -
Cabling installation -
Part 3: Installation planning and practices outside buildings
Technologies de l'information - Informationstechnik -
Installation de câblage - Installation von
Partie 3: Planification et pratiques Kommunikationsverkabelung -
d'installation à l'extérieur des bâtiments 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 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 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 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, Finland, 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.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für 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 50174-3:2013 E
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SIST EN 50174-3:2014
EN 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 and 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 Closures ........................................................................................................................................ 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 Labelling ........................................................................................................................................ 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 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 ........................................................................... 77

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

Bibliography .................................................................................................................................................... 96

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SIST EN 50174-3:2014
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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 in 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

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 supporting 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............................................................................................................................................ 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 filters .............................................................................................. 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 .............................................................................................................. 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 and planning of dedicated aerial pathways .................................................................. 23

Table 5  Minimum installed clearances above ground for aerial cables ............................................... 25

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SIST EN 50174-3:2014
EN 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  Minimum 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 protective 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 distance (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

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SIST EN 50174-3:2014
- 5 - EN 50174-3:2013
Foreword

This document (EN 50174-3:2013) 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
(dop) 2014-09-02
implemented at national level by publication of
an identical national standard or by
endorsement
• latest date by which the national standards
(dow) 2016-09-02
conflicting with this document have to
be withdrawn
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 technology  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 operation 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 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 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 1 edition) has been completely revised in the light of the technical evolution and the

feedback received from the users of the 1 edition. Major changes 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 appropriate, 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 on the application of responsibilities have been added.
---------------------- Page: 7 ----------------------
SIST EN 50174-3:2014
EN 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 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 organisation’s effectiveness.

There are four phases in the successful implementation 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 requirements 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, installation 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.

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 applicable 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 pathway 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 characteristics (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), 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:
---------------------- Page: 8 ----------------------
SIST EN 50174-3:2014
- 7 - EN 50174-3:2013

i) planning 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 environment, 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 information 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).

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iinfnforormmatatiion ton tecechnolhnoloogygy -- 202048 48 kkbbiit/st/s IISSDN pDN prriimmaarryy

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acacccesesss and l and leaseased led liine nne netetwwororkk i intntererffacacee

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GGenenereriicc c cablabliing ng ssyysstteemmss -- DDatata a ccententrreses
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sserervviicceses

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iinsnsttalalllatatiion on -- IInsnsttalalllatatiion son specpeciiffiiccatatiion on aand qnd qualualiittyy

asasssururancancee

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iinsnsiide buide builldidingsngs ttecechnolhnoloogygy e equiquipmpmentent

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iinsnsttalalllatatiion on -- IInsnsttalalllatatiion on plplannianninng g and and prpracacttiicceses

outoutssiide buide builldidinngsgs

EENN 503450346:6: I Infnforormmatatiion ton tecechnolhnologogyy -- CCablabliing ng

iinsnsttalalllatatiion on -- TTeessttiing ofng of i insnsttalallled ced cablabliingng

Figure 1  Schematic relationship between EN 50174 series and other relevant standards

---------------------- Page: 9 ----------------------
SIST EN 50174-3:2014
EN 50174-3:2013 - 8 -
Table 1  Contextual relationship between EN 50174 series
and other standards relevant for information technology cabling systems

Building design phase Generic cabling Specification phase Installation phase Operation phase

design phase
EN 50310 EN 50173 series EN 50174-1 EN 50174-1
except
EN 50173-4
6. Earthing networks 4: Structure 4: Requirements for 4: Requirements for
specifying installations specifying installations
5: Channel performance
of information of information
technology cabling technology cabling
7: Cable requirements
5: Requirements for
8: Connecting hardware
installers of information
requirements
technology cabling
9: Requirements for
cords and jumpers
A: Link performance
limits
Planning phase
and
EN 50173-4 EN 50174-2 EN 50174-2
4 and 5: Structure 4: Requirements for 5: Requirements for the
planning installations of installation of
6: Channel performance
information technology information technology
cabling cabling
8: Cable requirements
6: Segregation of 6: Segregation of
9: Connecting hardware
metallic information metallic information
requirements
technology cabling and technology cabling and
10: Requirements for power supply cabling power supply cabling
cords and jumpers
7: Electricity distribution
A: Link performance
systems and lightning
limits protection
and and
EN 50174-3 EN 50174-3
and and
(for equipotential (for equipotential
bonding) bonding)
EN 50310 EN 50310
and
EN 50346
4: General requirements
5: Test parameters for
balanced cabling
6: Test parameters for
optical fibre cabling
---------------------- Page: 10 ----------------------
SIST EN 50174-3:2014
- 9 - EN 50174-3:2013
1 Scope and conformance
1.1 Scope

This European Standard specifies requirements and provides recommendations for the following aspects of

information technology cabling:
a) planning;
b) installation practice.

This European Standard is applicable 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 requirements and recommendations of Clauses 4, 5 and 6 of this European Standard are subject to any

site-specific requirements and recommendations of Clause 7.

The planning of the pathway 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 characteristics (i.e. excluding pathway dimensions, distribution of spaces and similar constraints

based on specific transmission methods).

The installation practices applicable to all cabling installation methods are included by the provision of the

necessary planning requirements and recommendations associated with each one with the exception of

information technology cabling installed:
– around or within aerial power supply or associated earth conductors;
– on infrastructures carrying power supplies in excess of AC/DC 25 kV.
This European Standard:
1) details the considerations for satisfactory install
...

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