EN 50600-2-3:2014

SLOVENSKI STANDARD
01-december-2014
Informacijska tehnologija - Naprave in infrastruktura podatkovnega centra - 2-3.
del: Nadzor okolja
Information technology - Data centre facilities and infrastructures -- Part 2-3:
Environmental control
Informationstechnik - Einrichtungen und Infrastrukturen von Rechenzentren -- Teil 2-3:
Überwachung der Umgebung
Technologie de l'information - Installation et infrastructures des centres de traitement de
données -- Partie 2-3: Contrôle environnemental
Ta slovenski standard je istoveten z: EN 50600-2-3:2014
ICS:
13.020.99 Drugi standardi v zvezi z Other standards related to
varstvom okolja environmental protection
35.110 Omreževanje Networking
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 50600-2-3

NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2014
ICS 35.020; 35.110; 35.160
English Version
Information technology - Data centre facilities and infrastructures
- Part 2-3: Environmental control
Technologie de l'information - Installation et infrastructures Informationstechnik - Einrichtungen und Infrastrukturen von
des centres de traitement de données - Partie 2-3: Contrôle Rechenzentren - Teil 2-3: Überwachung der Umgebung
environnemental
This European Standard was approved by CENELEC on 2014-09-01. 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 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.

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
© 2014 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 50600-2-3:2014 E
Contents Page
Foreword . 4
Introduction . 5
1 Scope . 7
2 Normative references. 7
3 Terms, definitions and abbreviations . 7
3.1 Terms and definitions . 7
3.2 Abbreviations . 9
4 Conformance . 9
5 Environmental control within data centres . 9
5.1 General . 9
5.2 Environmental control of data centre spaces . 10
6 Availability . 14
6.1 General . 14
6.2 Design options by space . 14
6.3 Environmental control system capacity planning with respect to expansion . 18
6.4 Environmental control system capacity planning with respect to resilience . 18
7 Physical security . 18
7.1 General . 18
7.2 Access . 18
8 Energy efficiency enablement . 18
8.1 General . 18
8.2 Measurement of temperature . 19
8.3 Measurement of relative humidity . 20
8.4 Measurement of air pressure . 21
8.5 Coolant flow rates . 21
8.6 Heat removal . 21
8.7 Outside air. 22
8.8 Provision of alarms . 22
8.9 Measurement requirements by Granularity Level. 22
Annex A (normative) Distribution methodologies for temperature-controlled air in computer
room space . 23
A.1 Cabinet or rack air flow management . 23
A.2 Access floor air flow management . 23
A.3 Hot aisles/cold aisles . 24
Annex B (informative) Control system concepts . 26
B.1 General . 26
B.2 Control of exhaust temperature (return air) . 26
B.3 Control of supply temperature (supply air) . 26

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B.4 Combination of control of supply and exhaust temperature . 26
B.5 Supply air relative humidity . 26
B.6 Proportion of outside air . 26
Bibliography . 27

Foreword
This document (EN 50600-2-3:2014) 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 (dop) 2015-09-01
implemented at national level by publication of
an identical national standard or by
endorsement
• latest date by which the national standards (dow) 2017-09-01
conflicting with this document have to
be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
This document has been prepared under a mandate given to CENELEC by the European Commission and
the European Free Trade Association.

– 5 – EN 50600-2-3:2014
Introduction
The unrestricted access to internet-based information demanded by the information society has led to an
exponential growth of both internet traffic and the volume of stored/retrieved data. Data centres are housing
and supporting the information technology and network telecommunications equipment for data processing,
data storage and data transport. They are required both by network operators (delivering those services to
customer premises) and by enterprises within those customer premises.
Data centres need to provide modular, scalable and flexible facilities and infrastructures to easily
accommodate the rapidly changing requirements of the market. In addition, energy consumption of data
centres has become critical both from an environmental point of view (reduction of carbon footprint) and with
respect to economical considerations (cost of energy) for the data centre operator.
The implementation of data centres varies in terms of:
a) purpose (enterprise, co-location, co-hosting or network operator facilities);
b) security level;
c) physical size;
d) accommodation (mobile, temporary and permanent constructions).
The needs of data centres also vary in terms of availability of service, the provision of security and the
objectives for energy efficiency. These needs and objectives influence the design of data centres in terms of
building construction, power distribution, environmental control and physical security. Effective management
and operational information is required to monitor achievement of the defined needs and objectives.
This series of European Standards specifies requirements and recommendations to support the various
parties involved in the design, planning, procurement, integration, installation, operation and maintenance of
facilities and infrastructures within data centres. These parties include:
1) owners, facility managers, ICT managers, project managers, main contractors;
2) architects, building designers and builders, system and installation designers;
3) facility and infrastructure integrators, suppliers of equipment;
4) installers, maintainers.
At the time of publication of this European Standard, the EN 50600 series will comprise the following
standards:
— EN 50600-1, Information technology — Data centre facilities and infrastructures — Part 1: General
concepts;
— EN 50600-2-1, Information technology — Data centre facilities and infrastructures — Part 2-1: Building
construction;
— EN 50600-2-2, Information technology — Data centre facilities and infrastructures — Part 2-2: Power
distribution;
— EN 50600-2-3, Information technology — Data centre facilities and infrastructures — Part 2-3:
Environmental control;
— EN 50600-2-4, Information technology — Data centre facilities and infrastructures — Part 2-4:
Telecommunications cabling infrastructure;
— EN 50600-2-5, Information technology — Data centre facilities and infrastructures — Part 2-5: Security
systems;
— EN 50600-2-6, Information technology — Data centre facilities and infrastructures — Part 2-6:
Management and operational information.
The inter-relationship of the standards within the EN 50600 series is shown in Figure 1.

Figure 1 — Schematic relationship between the EN 50600 standards
EN 50600-2-X standards specify requirements and recommendations for particular facilities and
infrastructures to support the relevant classification for “availability”, “physical security” and “energy efficiency
enablement” selected from EN 50600-1.
This European Standard addresses the environmental control facilities and infrastructure within data centres
together with the interfaces for monitoring the performance of those facilities and infrastructures in line with
EN 50600-2-6 (in accordance with the requirements of EN 50600-1).
This series of European Standards does not address the selection of information technology and network
telecommunications equipment, software and associated configuration issues.

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1 Scope
This European Standard addresses environmental control within data centres based upon the criteria and
classifications for “availability”, “se
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