EN 50600-2-2:2014

SLOVENSKI STANDARD
01-maj-2014
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GHO'LVWULEXFLMDHOHNWULþQHHQHUJLMH
Information technology - Data centre facilities and infrastructures - Part 2-2: Power
distribution
Informationstechnik - Einrichtungen und Infrastrukturen von Rechenzentren - Teil 2-2:
Stromversorgung
Ta slovenski standard je istoveten z: EN 50600-2-2:2014
ICS:
29.240.01 2PUHåMD]DSUHQRVLQ Power transmission and
GLVWULEXFLMRHOHNWULþQHHQHUJLMH distribution networks in
QDVSORãQR general
35.110 Omreževanje Networking
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 50600-2-2
NORME EUROPÉENNE
March 2014
EUROPÄISCHE NORM
ICS 35.020; 35.110; 91.140.50
English version
Information technology -
Data centre facilities and infrastructures -
Part 2-2: Power distribution
Informationstechnik -
Einrichtungen und Infrastrukturen von
Rechenzentren -
Teil 2-2: Stromversorgung
This European Standard was approved by CENELEC on 2014-01-06. 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

© 2014 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 50600-2-2:2014 E
Contents
Foreword .4
Introduction .5
1 Scope . 7
2 Normative references. 7
3 Terms, definitions and abbreviations . 8
3.1 Terms and definitions . 8
3.2 Abbreviations . 11
4 Conformance . 12
5 Power supply and distribution within data centres . 12
5.1 General . 12
5.2 Dimensioning of power distribution systems. 15
6 Availability . 15
6.1 General requirements . 15
6.2 Power supply . 16
6.3 Power distribution . 24
6.4 Incorporation of LVDC distribution . 28
6.5 Additional considerations . 28
6.6 Emergency Power Off (EPO) . 28
7 Physical security . 29
7.1 General . 29
7.2 Access . 29
7.3 Internal environmental events . 29
7.4 External environmental events . 30
8 Energy efficiency enablement and power distribution . 30
8.1 General . 30
8.2 Granularity Level 1 . 31
8.3 Granularity Level 2 . 31
8.4 Granularity Level 3 . 31
8.5 Cabling infrastructure to support energy efficiency enablement. 32
Annex A (informative) Example implementations of power distribution . 33
A.1 Symbology. 33

– 3 – EN 50600-2-2:2014
A.2 Example implementations . 33
Bibliography . 36

Figures
Figure 1 — Schematic relationship between the EN 50600 standards . 6
Figure 2 — Power supply functional elements . 13
Figure 3 —Secondary and tertiary power distribution systems . 14
Figure 4 — Example of single path solution for power supply . 21
Figure 5 — Example of “single path resilient” solution for power supply . 22
Figure 6 — Example of “multi-path resilience with concurrent repair/operate” solution for power
supply . 22
Figure 7 — Example of fault tolerant design solution for power supply . 23
Figure 8 — Example of single path solution for power distribution . 27
Figure 9 — Example of “single path resilient” solution for power distribution . 27
Figure 10 — Example of “multi-path resilience with concurrent repair/operate” solution for power
distribution . 27
Figure 11 — Example of fault tolerant design solution for power distribution . 28
Figure 12 — Possible measurement points . 30
Figure A.1 — Example for a Class 1/Class 2 power distribution . 34
Figure A.2 — Example for a Class 3/Class 4 power distribution . 35

Tables
Table 1 — Functional elements of power distribution . 13

Foreword
This document (EN 50600-2-2:2014) has been prepared by CLC/TC 215 “Electrotechnical aspects of
telecommunication equipment”.
The following dates are fixed:
(dop) 2015-01-06
• latest date by which this document has
to be implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2015-01-06
standards 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 [and/or CEN] 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 50600-2-2:2014
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) consultants, 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, 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.
EN 50600-2-1
Building construction
EN 50600-2-2
Power distribution
EN 50600-2-3
Environmental control
EN 50600-1
General concepts
EN 50600-2-4
Telecommunications
cabling infrastructure
EN 50600-2-5
Security systems
EN 50600-2-6
Management and
operational information
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
...