EN 50174-1:2009/A1:2011

SLOVENSKI STANDARD
01-maj-2011
Informacijska tehnologija - Polaganje kablov - 1. del: Specifikacija in zagotavljanje
kakovosti - Dodatek A1
Information technology - Cabling installation -- Part 1: Installation specification and
quality assurance
Informationstechnik - Installation von Kommunikationsverkabelung - Teil 1:
Installationsspezifikation und Qualitätssicherung
Technologies de l'information - Installation de câblages -- Partie 1: Spécification de
l'installation et assurance de la qualité
Ta slovenski standard je istoveten z: EN 50174-1:2009/A1:2011
ICS:
33.040.50 Vodi, zveze in tokokrogi Lines, connections and
circuits
35.110 Omreževanje Networking
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 50174-1/A1
NORME EUROPÉENNE
March 2011
EUROPÄISCHE NORM
ICS 35.110
English version
Information technology -
Cabling installation -
Part 1: Installation specification and quality assurance

Technologies de l'information -  Informationstechnik -
Installation de câblages - Installation von
Partie 1: Spécification de l'installation et Kommunikationsverkabelung -
assurance de la qualité Teil 1: Installationsspezifikation und
Qualitätssicherung
This amendment A1 modifies the European Standard EN 50174-1:2009; it was approved by CENELEC on
2011-01-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which
stipulate the conditions for giving this amendment 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 Central Secretariat or to any CENELEC member.

This amendment 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
Central Secretariat 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia,
Spain, Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Management Centre: Avenue Marnix 17, B - 1000 Brussels

© 2011 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 50174-1:2009/A1:2011 E

Foreword
This amendment to the European Standard EN 50174-1:2009 was prepared 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 50174-1:2009 on 2011-01-01.
Attention is drawn to the possibility that some of the elements 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 standard or by endorsement
(dop) 2012-01-01
– latest date by which the national standards conflicting

with the amendment have to be withdrawn
(dow) 2014-01-01
This amendment comes with
– a new normative Annex E on sampling plans and marginal results;
– simplified administration requirements (see 4.5.2), simplified complexity installation and operational
levels (see 6.2) and simplified minimum requirements for technical specifications and quality plans (see
Annex A);
– some technical and editorial changes to Clauses 4 and 5.

– 3 – EN 50174-1:2009/A1:2011
Text of A1 to EN 50174-1:2009
Introduction
Replace Table 1 with:
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. Bonding 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 and power
requirements
technology cabling and supply cabling
10: Requirements for
power supply cabling
8: Office (commercial)
cords and jumpers
7: Electricity distribution premises
A: Link performance systems and lightning
9: Industrial premises
limits protection
10: Homes
11: Data centres
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
General change
Replace all occurrences of “EN 50173-1:2007” with “EN 50173-1:2011 (in addition to the changes indicated
below).
1.2 Conformance
Replace bullet f) with:
f) local regulations, including safety, that are more stringent than the requirements listed in a) to e) shall be
met.
2 Normative references
Update the reference to EN 50173-1:2007 to read “EN 50173-1:2011.
Add the following references:
EN 61935-1, Specification for the testing of balanced and coaxial information technology cabling – Part 1:
Installed balanced cabling as specified in the standards series EN 50173 (IEC 61935-1:2009, mod.)
)
ISO/IEC TR 14763-2-1 , Information technology – Implementation and operation of customer premises
cabling – Part 2-1: Planning and installation of copper cabling – Identifiers within administration systems
3 Terms, definitions and abbreviations
3.1 Terms and definitions
Modify as follows:
3.1.3
building entrance facility
facility that provides all necessary mechanical and electrical services for the entry of telecommunications
cables into a building and which may allow for transition from external to internal cable
[EN 50173-1:2011]
3.1.5
cable element
smallest construction unit in a cable
NOTE 1 A cable element may have a screen
NOTE 2 A pair, a quad, a single isolated lead with coaxial screen and a single optical fibre are examples of a cable element.
[EN 50173-1:2011]
Replace definition 3.1.12 and insert the following definitions:
3.1.12
external fire barrier
a boundary, designated by local fire authorities, that demarcates the extent of the fire zones or
compartments of a building
———————
)
Under development.
– 5 – EN 50174-1:2009/A1:2011
3.1.13
fire barrier
fire compartment boundary with appropriate levels of fire performance in order to prevent the spread of fire
and its effluent and minimize the extent of loss
3.1.14
fire-stop materials
sealing products that, at all times, take up imperfections of fit or design tolerance between the fire resisting
fixed elements of a building and which provide the same fire performance as the fixed elements in order to
restrict the passage of fire and smoke
3.1.15
fire-stopping techniques
processes, products and materials that reinstate the original fire rating of a fire barrier
3.1.16
frame
open construction, typically wall-mounted, for housing closures and other information technology equipment
Renumber 3.1.13 into 3.1.17 and replace existing 3.1.14 with:
3.1.18
information technology
telecommunications
branch of technology concerned with the transmission, emission and reception of signs, signals, writing,
images and sounds; that is, information of any nature by cable, radio, optical or other electromagnetic
systems
NOTE The term telecommunications has no legal meaning when used in this document.
[EN 50173-1:2011]
Renumber 3.1.15 to 3.1.23 accordingly and insert the following definitions:
3.1.28
power supply cabling
cabling whose primary purpose is the supply of electrical power
3.1.29
rack
open construction, typically self-supporting and floor-mounted, for housing closures and other information
technology equipment
Renumber 3.1.24 to 3.1.29 and replace existing 3.1.27 with:
3.1.33
space
specified volume within premises allocated to information technology cabling infrastructure (e.g. entrance
facilities, functional elements in accordance with EN 50173 series standards)
NOTE  Examples include rooms, maintenance holes or part thereof, housing closures and/or other information technology equipment.
3.2 Abbreviations
Insert the following abbreviation:
BEF building entrance facility

4 Requirements for specifying installations of information technology cabling
4.1.1.1 Requirements
rd
In 3 paragraph, bullet 1), replace “mains power” with “power supply”.
4.1.1.2 Recommendations
Delete “mains” in bullet d).
4.1.3.2.1 Requirements
Insert new bullet 4) to read:
4) means and methods for securing cables within pathway systems;
4.2.1 Mains power/information technology cabling segregation requirements
Replace the title with:
4.2.1 Power supply/information technology cabling segregation requirements
st
In 1 paragraph replace “mains power” with “power supply”.
4.2.2.1 Requirements
st
Replace bullet b) of 1 paragraph with the following text:
b) environment:
− entrance facilities shall be located in dry areas that are not subject to flooding;
− the selection of pathway systems (including blown cabling media conduits) entering building shall
enable their sealing to prevent ingress of water, fluids or gases.
nd
Replace 2 paragraph with the following text:
Information technology cables that do not comply with the minimum recommended performance
requirements of EN 60332-1-2 shall either be:
1) terminated inside the building, within 2 m (unless an alternative distance if specified by local regulations)
of the point of internal penetration of the external fire barrier (e.g. floor/ceiling/wall);
or
2) any length exceeding 2 m (unless an alternative distance if specified by local regulations) is installed
within trunking or conduit that is considered as a fire barrier in accordance with local fire regulations.
NOTE This also applies where the cable has to pass through a space between two external fire barriers within a building.
4.2.3.2 Recommendations
th
Replace 6 paragraph with:
Fire barriers should be designed to facilitate their refurbishment following cable installation. Cables passing
through fire barriers should be segregated and appropriate fire-stopping techniques applied to minimise
disruption to the fire barriers during any subsequent installation (or removal) of cables.

– 7 – EN 50174-1:2009/A1:2011
4.2.5.1 Requirements
nd
Replace 2 paragraph with:
Cabinets, frames and racks shall not be installed:
1) in toilet facilities and kitchens;
2) in emergency escape ways (where they would cause an obstruction);
3) in ceiling or sub-floor spaces;
4) within cabinets or closures containing fire hose reels or other fire-extinguishing equipment;
5) in spaces that are subject to risk of flooding.
Insert the following after the existing three bullet points:
− fittings are provided for the functional and protective earthing of information technology equipment and
cabling;
− adequate ventilation is provided for anticipated information technology equipment;
− cable segregation requirements of EN 50174-2:2009 + A1:2011 Clause 6 are met.
4.2.7.1 Requirements
Insert the following text after the bullet e):
Termination points within floor-standing cabinets, frames and racks should be located between 0,15 m and
2,5 m above the finished floor.
4.3.2.1 Requirements
rd
Replace 3 paragraph with:
The pathway systems selected shall enable the reinstatement of the original fire rating of fire barrier, if
required, by the use of identified fire-stop materials and/or fire-stopping techniques.
4.3.2.2 Recommendations
th
Delete 5 paragraph.
4.3.3.1 Requirements
st
Retain 1 paragraph but delete remainder of text.

Insert new subclause as follows:
4.3.4 Labels
4.3.4.1 Requirements
Label(s) shall provide a direct link to the identifier within the record within the administration system.
Labels shall be durably affixed. Labels shall be resistant to the environmental conditions at the point of
installation (such as moisture, heat, or ultraviolet light), and shall have a design life equal to or greater than
that of the labelled component.
Non-machine readable labels shall:
a) feature readable text (by use of appropriate size, colour and contrast);
b) be printed, machine-generated or manufactured as part of the component.
Machine readable labels shall:
c) be printed, machine-generated or manufactured as part of the component;
d) use permanent media;
e) be located so that each machine readable label can be read uniquely.
Labels shall be located where they can be read without risk of material degradation of the transmission
performance of the cabling. Additional labels may be applied for convenience of cabling maintenance.
4.3.4.2 Recommendations
No additional reco
...