SIST EN 50600-2-2:2019
(Main)Information technology - Data centre facilities and infrastructures - Part 2-2: Power supply and distribution
Information technology - Data centre facilities and infrastructures - Part 2-2: Power supply and distribution
This European Standard addresses power supplies to, and power distribution within, data centres based upon the criteria and classifications for "availability", "physical security" and "energy efficiency enablement" within EN 50600 1.
Informationstechnik - Einrichtungen und Infrastrukturen von Rechenzentren - Teil 2-2: Stromversorgung und Stromverteilung
Technologie de linformation - Installation et infrastructures de centres de traitement de données - Partie 2-2: Alimentation en énergie et distribution de l’énergie
Informacijska tehnologija - Naprave in infrastruktura podatkovnega centra - 2-2. del: Napajanje in distribucija električne energije
Ta evropski standard obravnava napajanje in distribucijo električne energije v podatkovnih centrih na podlagi kriterijev ter klasifikacij za »dostopnost«, »fizično varnost« in »omogočanje energetske učinkovitosti« v okviru standarda EN 50600 1.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 50600-2-2:2019
01-september-2019
Nadomešča:
SIST EN 50600-2-2:2014
Informacijska tehnologija - Naprave in infrastruktura podatkovnega centra - 2-2.
del: Napajanje in distribucija električne energije
Information technology - Data centre facilities and infrastructures - Part 2-2: Power
supply and distribution
Informationstechnik - Einrichtungen und Infrastrukturen von Rechenzentren - Teil 2-2:
Stromversorgung und Stromverteilung
Technologie de linformation - Installation et infrastructures de centres de traitement de
données - Partie 2-2: Alimentation en énergie et distribution de l’énergie
Ta slovenski standard je istoveten z: EN 50600-2-2:2019
ICS:
29.240.01 Omrežja za prenos in Power transmission and
distribucijo električne energije distribution networks in
na splošno general
35.110 Omreževanje Networking
SIST EN 50600-2-2:2019 en,fr
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 50600-2-2:2019
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SIST EN 50600-2-2:2019
EUROPEAN STANDARD EN 50600-2-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2019
ICS 35.020; 35.110; 91.140.50 Supersedes EN 50600-2-2:2014
English Version
Information technology - Data centre facilities and infrastructures
- Part 2-2: Power supply and distribution
Technologie de l'information - Installation et infrastructures Informationstechnik - Einrichtungen und Infrastrukturen von
de centres de traitement de données Rechenzentren - Teil 2-2: Stromversorgung
This European Standard was approved by CENELEC on 2019-04-29. 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, Serbia, 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: Rue de la Science 23, B-1040 Brussels
© 2019 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 50600-2-2:2019 E
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EN 50600-2-2:2019 (E)
Content
European foreword . 4
Introduction . 5
1 Scope . 8
2 Normative references. 8
3 Terms, definitions and abbreviations . 9
3.1 Terms and definitions . 9
3.2 Abbreviations . 13
3.3 Symbols . 13
4 Conformance . 14
5 Power supply and distribution within data centres . 14
5.1 Functional elements . 14
5.1.1 General . 14
5.1.2 Power supply to the data centre . 15
5.1.3 Power distribution within the data centre . 16
5.2 Dimensioning of power distribution systems . 18
6 Availability . 18
6.1 General requirements . 18
6.2 Power supply . 18
6.2.1 Capacity planning . 18
6.2.2 Availability of the utility supply . 20
6.2.3 Power quality . 21
6.2.4 Load presented to the utility supply . 22
6.2.5 Equipment . 22
6.2.6 Availability Class design options . 24
6.3 Power distribution . 31
6.3.1 Capacity planning . 31
6.3.2 Power quality . 32
6.3.3 Equipment . 32
6.3.4 Availability Class design options . 33
6.4 Incorporation of low voltage direct current distribution . 37
6.5 Additional considerations . 37
6.5.1 Residual current measurement . 37
6.5.2 Lightning and surge protection . 37
6.5.3 Segregation of power distribution cabling and information technology cabling . 37
6.6 Emergency Power Off . 38
6.6.1 Requirements . 38
6.6.2 Recommendations . 38
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7 Physical security . 38
7.1 General . 38
7.2 Access . 38
7.2.1 Power supply . 38
7.2.2 Power distribution . 38
7.2.3 Attachment of unauthorised end-equipment . 38
7.3 Internal environmental events. 38
7.3.1 Power supply . 38
7.3.2 Power distribution . 39
7.4 External environmental events . 39
8 Energy efficiency enablement and power distribution . 39
8.1 General . 39
8.2 Granularity Level 1 . 40
8.2.1 Requirements . 40
8.2.2 Recommendations . 40
8.3 Granularity Level 2 . 41
8.3.1 Requirements . 41
8.3.2 Recommendations . 41
8.4 Granularity Level 3 . 42
8.4.1 Requirements . 42
8.4.2 Recommendations . 42
8.5 Cabling infrastructure to support energy efficiency enablement . 42
Bibliography . 43
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EN 50600-2-2:2019 (E)
European foreword
This document (EN 50600-2-2:2019) 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) 2020-04-29
implemented at national level by publication of
an identical national standard or by
endorsement
• latest date by which the national standards (dow) 2022-04-29
conflicting with this document have to be
withdrawn
This document will supersede EN 50600-2-2:2014.
The following changes have been made:
a) title modified to emphasize distinction between power supply and power distribution requirements;
b) Clause 5 updated, in particular subclauses 5.1 regarding the power supply to the data centre and 5.2 on
the power distribution within the data centre;
c) availability requirements in Clause 6 revised and aligned with EN 50600-1:2018 and EN 50600-2-
3:2018;
d) physical security requirements revised, mainly regarding the power distribution in the data centre (see
7.3.2);
e) granularity level requirements amended (see 8.2 to 8.4);
f) Annex A removed;
g) minor technical and editorial improvements to the whole document.
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.
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EN 50600-2-2:2019 (E)
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 usually 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 environmental 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, telecommunications cabling and physical
security as well as the operation of the data centre. Effective management and operational information is
required to monitor achievement of the defined needs and objectives.
Recognizing the substantial resource consumption, particularly of energy, of larger data centres, it is also
important to provide tools for the assessment of that consumption both in terms of overall value and of
source mix and to provide Key Performance Indicators (KPIs) to evaluate trends and drive performance
improvements.
At the time of publication of this European Standard, EN 50600 series is designed as a framework of
standards and technical reports covering the design, the operation and management as well as the key
performance indicators for energy efficient operation of the data centre.
The EN 50600-2 series defines the requirements for the data centre design.
The EN 50600-3 series defines the requirements for the operation and the management of the data centre.
The EN 50600-4 series defines the key performance indicators for the data centre.
The CLC/TR 50600-99-X Technical Reports cover recommended practices and guidance for specific topics
around data centre operation and design.
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, operators, facility managers, ICT managers, project managers, main contractors;
2) consulting engineers, architects, building designers and builders, system and installation designers,
auditors, test and commissioning agents;
3) facility and infrastructure integrators, suppliers of equipment;
4) installers, maintainers.
At the time of publication of this European Standard, EN 50600-2 series comprises the following standards:
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EN 50600-2-2:2019 (E)
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 supply
and 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.
The inter-relationship of the standards and technical reports within the EN 50600 series is shown in Figure 1.
Figure 1 — Schematic relationship between the EN 50600 standard
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.
EN 50600-3-X documents specify requirements and recommendations for data centre operations, processes
and management.
EN 50600-4-X documents specify requirements and recommendations for key performance indicators (KPIs)
used to assess and improve the resource usage efficiency and effectiveness, respectively, of a data centre.
This European Standard addresses facilities and infrastructures for power supplies to, and power distribution
within, data centres together with the interfaces for monitoring the performance of those facilities and
infrastructures in line with EN 50600-3 series and EN 50600-4 series standards (in accordance with the
requirements of EN 50600-1). The line diagrams used in certain Figures are not intended to replace the
more familiar electrical circuit diagrams associated with power supply and distribution systems which are
included where relevant.
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EN 50600-2-2:2019 (E)
This European Standard is intended for use by and collaboration between architects, building designers and
builders, system and installation designers.
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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EN 50600-2-2:2019 (E)
1 Scope
This document addresses power supplies to, and power distribution within, data centres based upon the
criteria and classifications for “availability”, “physical security” and “energy efficiency enablement” within
EN 50600-1.
This document specifies requirements and recommendations for the following:
a) power supplies to data centres;
b) power distribution systems to all equipment within data centres;
c) telecommunications infrastructure bonding;
d) lightning protection;
e) devices for the measurement of the power consumption and power quality characteristics at points
along the power distribution system and their integration within management tools.
Safety and electromagnetic compatibility (EMC) requirements are outside the scope of this European
Standard and are covered by other standards and regulations. However, information given in this European
Standard can be of assistance in meeting these standards and regulations.
Conformance of data centres to the present document is covered in Clause 4.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes
requirements of this document. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
EN 13160 (all parts), Leak detection systems
EN 50160:2010, Voltage characteristics of electricity supplied by public electricity networks
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
EN 50310, Telecommunications bonding networks for buildings and other structures
EN 50600-1, Information technology - Data centre facilities and infrastructures - Part 1: General concepts
EN 50600-2-3, Information technology - Data centre facilities and infrastructures - Part 2-3: Environmental
control
EN 50600-2-5, Information technology - Data centre facilities and infrastructures - Part 2-5: Security systems
EN 60076-11, Power transformers - Part 11: Dry-type transformers
EN 60947 (all parts), Low-voltage switchgear and controlgear (IEC 60947, all parts)
EN 61000-2-4:2002, Electromagnetic compatibility (EMC) - Part 2-4: Environment - Compatibility levels in
industrial plants for low-frequency conducted disturbances
EN 61439 (all parts), Low-voltage switchgear and controlgear assemblies (IEC 61439, all parts)
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EN 61557-12:2008, Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. -
Equipment for testing, measuring or monitoring of protective measures - Part 12: Performance measuring
and monitoring devices (PMD)
EN 61869-2:2012, Instrument transformers - Part 2: Additional requirements for current transformers
EN 62040 (all parts), Uninterruptible power systems (UPS) (IEC 62040, all parts)
EN 62053-21:2003, Electricity metering equipment (a.c.) - Particular requirements - Part 21: Static meters for
active energy (classes 1 and 2)
EN 62053-22:2003, Electricity metering equipment (a.c.) - Particular requirements - Part 22: Static meters for
active energy (classes 0,2 S and 0,5 S)
EN 62271-200:2012, High-voltage switchgear and controlgear. Part 200. AC metal-enclosed switchgear and
controlgear for rated voltages above 1 kV and up to and including 52 kV
EN 62305 (all parts), Protection against lightning (IEC 62305, all parts)
EN 62305-4, Protection against lightning - Part 4: Electrical and electronic systems within structures
EN 62586-1:2017, Power quality measurement in power supply systems – Part 1: Power quality instruments
(PQI)
EN 62586-2:2017, Power quality measurement in power supply systems – Part 2: Functional tests and
uncertainty requirements
EN 62974-1, Monitoring and measuring systems used for data collection, gathering and analysis - Part 1:
Device requirements
EN 88528-11, Reciprocating internal combustion engine driven alternating current generating sets - Part 11:
Rotary uninterruptible power systems - Performance requirements and test methods
HD 60364 (all parts), Low-voltage electrical installations
3 Terms, definitions and abbreviations
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 50600-1 and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1.1
active power
under periodic conditions, mean value, taken over one period T, of the instantaneous power p
T
1
P= ∫ pdt
0
T
Note 1 to entry: Under sinusoidal conditions, the active power is the real part of the complex power S, thus P = Re S.
Note 2 to entry: The coherent SI unit for active power is watt, W.
[SOURCE: IEC 60050-131:2002, 131-11-42]
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3.1.2
additional supply
power supply that provides power in the event of failure of primary and/or secondary supply
3.1.3
apparent power
product of the rms voltage U between the terminals of a two-terminal element or two-terminal circuit and the
rms electric current I in the element or circuit S = UI
Note 1 to entry: Under sinusoidal conditions, the apparent power is the modulus of the complex power S, thus S = |S| .
Note 2 to entry: The coherent SI unit for apparent power is voltampere, VA.
[SOURCE: IEC 60050-131:2002, 131-11-41]
3.1.4
capacitive load
load that is capacitive, so that the alternating current is out of phase with and leads the voltage
3.1.5
catenary
wire hung at a specific tension between supporting structures of power cabling
3.1.6
demarcation point
virtual interface between the power supply system and power distribution system infrastructures
3.1.7
diverse route
alternative, separate, pathway intended to provide adequate segregation from another pathway, in order to
provide resilient service provision in the event of physical damage to one of the pathways
3.1.8
dual-corded equipment
equipment served by multiple power supply input interfaces
3.1.9
emergency power off
designated device to provide emergency switching which disconnects power from one or more data centre
facilities, infrastructures or spaces
Note 1 to entry: The configuration and function of emergency power off devices can be subject to national or local
regulations.
3.1.10
fire compartment
discrete zone designed to contain a fire within that zone
3.1.11
high voltage
voltage whose nominal r.m.s. value is 36 kV < Un ≤ 150 kV
Note 1 to entry: Because of existing network structures, in some countries the boundary between MV and HV can be
different.
[SOURCE: EN 50160:2010, 3.7]
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3.1.12
inductive load
load that is inductive, so that the alternating current is out of phase with and lags behind the voltage
3.1.13
information technology equipment
equipment providing data storage, processing and transport services together with equipment dedicated to
providing direct connection to core and/or access networks
3.1.14
IT load
electrical consumption of all the information technology equipment measured at its input terminals including
all on-board integrated power supplies and cooling fans
3.1.15
load factor
ratio, expressed as a numerical value or as a percentage, of the consumption within a specified period (year,
month, day, etc.), to the consumption that would result from continuous use of the maximum or other
specified demand occurring within the same period
Note 1 to entry: This term should not be used without specifying the demand and the period to which it relates.
Note 2 to entry: The load factor for a given demand is also equal to the ratio of the utilization time to the time in hours
within the same period.
[SOURCE: IEC 60050-691:1973, 691-10-02]
3.1.16
locally protected supply provision
sockets which continue to deliver power to connected equipment for a defined period following failure of
power supply and distribution equipment by means of a battery supply or UPS adjacent to, or co-located
with, those sockets (e.g. emergency lighting)
3.1.17
low voltage
voltage whose nominal r.m.s. value is Un ≤ 1 kV
[SOURCE: EN 50160:2010, 3.9]
3.1.18
Main-Tie-Tie-Main
electrical connection between two power supply or power distribution circuits which allows current to flow in
either direction and containing two circuit breakers enabling maintenance while one of the circuits is active
3.1.19
medium voltage
voltage whose nominal r.m.s. value is 1 kV < Un ≤ 36 kV
Note 1 to entry: Because of existing network structures, in some countries the boundary between MV and HV can be
different.
[SOURCE: EN 50160:2010, 3.11]
3.1.20
pathway
defined route for cables between termination points
[SOURCE: EN 50174-1:2018, 3.1.31]
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3.1.21
power factor
under periodic conditions, ratio of the absolute value of the active power P to the apparent power S: λ = |P|/S
Note 1 to entry: The ratio of the active (real) power flowing to the load to the apparent power (as a result of the capacitive
or inductive nature of the load) and is a dimensionless number between 0 and 1.
[SOURCE: IEC 60050-131:2002, 131-11-46, modified: Note 1 to entry reworded]
3.1.22
protected supply provision
no break protected supply provision
sockets which continue to deliver power to connected equipment for a defined period following failure of
power supply and distribution equipment
3.1.23
primary distribution equipment
equipment which is required to manage, control and convert incoming power supplies (primary, secondary
and, where appropriate, additional) in a form suitable for distribution by secondary distribution equipment
3.1.24
primary supply
principal power supply that provides power to the data centre under normal operating conditions
3.1.25
resistive load
load in which the alternating current is in phase with the voltage
Note 1
...
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