SIST EN 50600-2-3:2014
(Main)Information technology - Data centre facilities and infrastructures -- Part 2-3: Environmental control
Information technology - Data centre facilities and infrastructures -- Part 2-3: Environmental control
This European Standard addresses environmental control within data centres based upon the criteria and classifications for “availability”, “security” and “energy efficiency enablement” within EN 50600 1.
This European Standard specifies requirements and recommendations for the following:
a) temperature control,
b) fluid movement control,
c) relative humidity control,
d) particulate control,
e) vibration,
f) floor layout and equipment locations,
g) energy saving practices,
h) physical security of environmental control systems.
For issues related to electromagnetic environment, see prEN 50600 2 5.
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
La présente Norme Européenne aborde les aspects liés au contrôle environnemental dans les centres de traitement de données, selon les critères et classifications de “disponibilité”, “sécurité” et “validation d'efficacité énergétique » définis dans EN 50600-1. La présente Norme Européenne spécifie les exigences et les recommandations pour ce qui suit: a) contrôle des températures b) contrôle des mouvements de fluides c) contrôle de l’humidité d) contrôle des particules e) vibrations f) schéma d’implantation au sol et localisation des équipements g) pratiques pour économiser l’énergie h) sécurité physique des systèmes de contrôle environnemental Pour les problèmes relatifs à l'environnement électromagnétique, voir l'EN 50600-2-5.
Informacijska tehnologija - Naprave in infrastruktura podatkovnega centra - 2-3. del: Nadzor okolja
Standard obravnava nadzor okolja v podatkovnih centrih na podlagi meril in klasifikacij za »dostopnost«, »varnost« in »omogočanje energetske učinkovitosti« v okviru standarda EN 50600-1. Ta evropski standard določa zahteve in priporočila za naslednje elemente: a) nadzor temperature, b) nadzor pretoka tekočin, c) nadzor relativne vlažnosti, d) nadzor delcev, e) vibracije, f) tloris in lokacije opreme, g) prakse, ki prispevajo k varčevanju z energijo, h) fizično varnost sistemov za nadzor okolja. Če vas zanimajo vprašanja, povezana z elektromagnetnim okoljem, si oglejte standard EN 50600-2-5.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 50600-2-3:2014
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
SIST EN 50600-2-3:2014 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 50600-2-3:2014
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SIST EN 50600-2-3:2014
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
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EN 50600-2-3:2014 – 2 –
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
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EN 50600-2-3:2014 – 4 –
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.
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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;
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EN 50600-2-3:2014 – 6 –
— 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”, “security” and “energy efficiency enablement” within EN 50600-1.
This European Standard specifies requirements and recommendations for the following:
a) temperature control,
b) fluid movement control,
c) relative humidity control,
d) particulate control,
e) vibration,
f) floor layout and equipment locations,
g) energy saving practices,
h) physical security of environmental control systems.
For issues related to electromagnetic environment, see EN 50600-2-5.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
EN 50600-1, Information technology — Data centre facilities and infrastructures — Part 1: General concepts
1)
EN 50600-2-5 , Information technology — Data centre facilities and infrastructures — Part 2-5: Security
systems
3 Terms, definitions and abbreviations
3.1 Terms and definitions
For the purposes of this document, the terms and definitions in EN 50600-1 and the following apply.
3.1.1
adiabatic cooling
adiabatic cooling is a cooling system that is using the evaporative cooling principle to reduce the air
temperature
3.1.2
absolute humidity
quantity of water vapour in a given volume of air, expressed by mass
———————
1) Circulated for CENELEC enquiry.
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EN 50600-2-3:2014 – 8 –
3.1.3
access floor
system consisting of completely removable and interchangeable floor panels that are supported on
adjustable pedestals connected by stringers to allow the area beneath the floor to be used by building
services
Note 1 to entry: Also known as raised floor.
[SOURCE: EN 50600-2-1:2014, 3.1.1]
3.1.4
comfort environmental controls
controls which produce an environment which is appropriate for the effective performance of personnel in a
given space
3.1.5
dew point
temperature at which the water vapour in a gas begins to deposit as a liquid or ice, under standardized
conditions
[SOURCE: IEC 60050-212:2010, 212-18-11]
3.1.6
exhaust air temperature
the temperature of the air leaving the data centre building or the temperature of the air leaving the heat load
3.1.7
fresh air cooling
cooling system that uses the external air to cool the data centre either directly or indirectly
3.1.8
heat load
thermal power that is produced
3.1.9
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
3.1.10
outdoor air temperature
temperature of the air measured outside of the data centre building
3.1.11
relative humidity
ratio, expressed as a percentage, of the vapour pressure of water vapour in moist air to the saturation vapour
pressure with respect to water or ice at the same temperature
[SOURCE: IEC 60050-705:1995, 705-05-09]
3.1.12
return air temperature
temperature of the air re-entering the environmental control system e.g. the air handling unit
3.1.13
supply air temperature
temperature of the air entering the IT equipment
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3.1.14
ventilation
supply of air motion in a space by circulation or by moving air through the space
Note 1 to entry: Ventilation can be produced by any combination of natural or mechanical supply and exhaust.
Note 2 to entry: Such systems may include partial treatment such as heating, relative humidity control, filtering or
purification, and, in some cases, evaporative cooling.
3.2 Abbreviations
For the purposes of this document, the abbreviations given in EN 50600-1 and the following apply.
UPS Uninterruptible Power Supply
CRAC Computer Room Air Conditioning (Unit)
IT Information Technology
ITE Information Technology Equipment
4 Conformance
For a data centre to conform to this European Standard:
a) it shall feature an environmental control solution that meets the requirements of Clauses 4 and 5;
b) it shall feature an approach to physical security in relation to the environmental control solution that
meets the requirements of Clause 6;
c) it shall feature an energy efficiency enablement solution that meets the requirements of the relevant
Granularity Level of Clause 7;
d) local regulations, including safety, shall be met.
5 Environmental control within data centres
5.1 General
5.1.1 Functional Elements
The environmental control system is one of the most important parts of the data centre infrastructure.
Excessive variations of temperature or relative humidity can directly affect the functional capability of the
data centre and its infrastructures.
The functional elements of the environmental control system are divided into primary and secondary
elements.
Primary elements relate to the mechanical generation of temperature controlled fluids. Secondary elements
relate to the distribution of fluids generated by the primary elements. See Table 1 for examples of these
elements.
Some environmental systems combine the function of primary and secondary elements.
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EN 50600-2-3:2014 – 10 –
Table 1 — Examples of Primary and Secondary Functional Elements
Area Fluid Functional Element(s)
Primary Water Water supply grid, chiller, pump(s)
Air Outside air intake, filter, heat exchanger
Secondary Water Pump(s), valve(s), pipe system, liquid cooled enclosures
Air Duct system, computer room air conditioning unit
It should be noted that a Class 1 environmental control system does not necessarily contain any of these
elements.
5.1.2 Requirements
The approach taken for the design of the environmental control system shall take into account available
technology, physical security and data centre availability.
The design of the environmental control system and the selection and installation of functional elements shall
take into consideration the effect of vibration on the data centre spaces.
The design of the environmental control system and the selection and installation of functional elements shall
take into consideration the effect of friction and/or obstruction in the pathways for temperature controlled
fluids. Operational controls shall be provided to ensure no degradation of fluid flow due to changes in the
pathways.
During the design phase the requirement for the number of air changes per unit time and air pressure shall
be established.
In all data centre spaces the requirements for filtration shall be considered.
In all spaces where there is a risk of damage to static-sensitive equipment from electro-static discharge the
relative humidity shall be maintained in accordance with the instructions of the supplier of the equipment to
be accommodated. Where no information exists or where the equipment manufacturer is not specified, a
minimum dew point of 5,5 °C shall be maintained.
Where direct fresh air cooling solutions are chosen the requirements analysis and the resulting methodology
of monitoring and control is of prime importance. In these circumstances particular consideration shall be
given to the control of contaminants.
For guidance on the ventilation requirements of activated gaseous suppression systems see EN 50600-2-5.
5.1.3 Recommendations
Opportunities for reductions in energy consumption exist where wider tolerances of temperature and relative
humidity can be tolerated in defined data centre spaces. It is recommended to use cooling units with
integrated vibration decoupling for all rotating parts (e.g. fan, compressor) or low vibration parts. If the
cooling units or other external components with rotating parts are not equipped with integrated vibration
decoupling the whole unit should be decoupled.
5.2 Environmental control of data centre spaces
5.2.1 Building entrance facilities
No specific requirements.
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5.2.2 Personnel entrance(s)
Comfort environmental controls shall be applied to this space.
5.2.3 Docking/loading bay(s)
No specific requirements.
5.2.4 Generator space(s) including fuel storage
5.2.4.1 Generator spaces
Temperature shall be maintained in accordance with the instructions of the supplier of the equipment to be
accommodated. Where no information exists or where the equipment manufacturer is not specified the
temperature shall be maintained above 0 °C and should be above 10 °C.
Adequate ventilation shall be provided for combustion and for radiator cooling.
Where the manufacturer is not known at the time of design the maximum temperature shall be 35 °C.
Anti-condensation heating shall be provided for alternators and switchgear.
Temperature and the presence of particulates (smoke, carbon monoxide and fuel) shall be monitored. See
EN 50600-2-5 for further information regarding monitoring of smoke.
Heater elements in the generator engine may provide sufficient heat for this space, where this is not possible
thermostatically controlled heaters shall be applied.
5.2.4.2 Fuel storage systems
The fuel storage system shall be protected against continuous sub-zero ambient temperatures to avoid fuel
solidification.
The fuel storage systems shall be monitored for leakage.
NOTE The availability of generators can be adversely affected by cold (<10 °C) or poor quality fuel and can be
improved through the installation of crankcase heaters.
5.2.5 Transformer space(s)
Temperature shall be maintained in accordance with the instructions of the supplier of the equipment to be
accommodated unless the system has been de-rated for operation at higher ambient temperatures. Where
no information exists or where the equipment manufacturer is not specified the temperature shall be
maintained above 0 °C and should be above 10 °C.
The maximum ambient temperature shall not exceed the maximum temperature specified by the equipment
manufacturer unless the system has been de-rated for operation at higher ambient temperatures. Where the
manufacturer is not known at the time of design the maximum temperature shall be 35 °C.
Filtration against dust shall be provided, if required, in accordance with the instructions of the supplier of the
equipment to be accommodated.
Forced air cooling of the transformer should be considered at the design phase where this would represent
an improvement in transformer efficiency.
Anti-condensation heating shall be provided for switchgear.
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EN 50600-2-3:2014 – 12 –
Temperature and the presence of smoke particulates shall be monitored. See EN 50600-2-5 for further
information regarding monitoring of smoke.
5.2.6 Electrical distribution space(s)
Temperature shall be maintained in accordance with the instructions of the supplier of the equipment to be
accommodated. Where no information exists or where the equipment manufacturer is not specified the
temperature shall be maintained above 0 °C and should be above 10 °C.
Natural ventilation shall be provided.
The maximum ambient temperature shall not exceed the maximum temperature specified by the supplier of
the equipment to be accommodated unless the system has been de-rated for operation at higher ambient
temperatures. Where the manufacturer is not known at the time of design the maximum temperature shall be
40 °C.
Anti-condensation heating shall be provided.
Temperature controlled air extraction shall be provided, where the facility’s redundancy so requires
ventilation shall be by redundant fans each rated to the maximum load expected. Temperature and relative
humidity shall be monitored.
5.2.7 Telecommunication spaces(s)
Temperature and relative humidity shall be maintained in accordance with the instructions of the supplier of
the equipment to be accommodated. Where this is not known in advance temperature shall be maintained
between 10 °C and 30 °C with relative humidity maintained between 20 % and 70 %.
Temperature and relative humidity shall be monitored.
Where the data centre is supported by a single telecommunications space, or by multiple, non-resilient
telecommunications spaces, the space(s) shall have a single path resilient environmental control system (for
examples see 6.2.5.3).
5.2.8 Main Distributor spaces(s)
If external to computer room space the requirements of 5.2.7 shall be applied; if contained within the
computer room space then the requirements of 5.2.9 shall be applied.
5.2.9 Computer room space(s) and associated testing space(s)
The computer room space is the most important space from an environmental control perspective.
An analysis examining the balance between tight environmental controls versus high performance energy
saving controls with reference to the type of IT equipment to be accommodated shall be performed by the
owner of the data centre. The results of this analysis shall be compared with the business model for the data
centre.
Environmental controls shall be applied that maintain the following parameters within limits defined by the
requirements of the analysis described above:
a) operating temperature;
b) relative humidity;
c) air quality:
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1) particulate content;
2) bacterial content;
3) gaseous contaminants.
The designer of the environmental control system shall assess the impact of the failure of the system on the
data centre infrastructure.
5.2.10 Electrical space(s)
See 5.2.15, if the electrical space contains UPS equipment.
Temperature shall be maintained in accordance with the instructions of the supplier of the equipment to be
accommodated. Where no information exists or where the equipment manufacturer is not specified the
temperature shall be maintained above 0 °C and should be above 10 °C.
Natural ventilation shall be provided.
The maximum ambient temperature shall not exceed the maximum temperature specified by the supplier of
the equipment to be accommodated unless the system has been de-rated for operation at higher ambient
temperatures. Where the manufacturer is not known at the time of design the maximum temperature shall be
40 °C.
Anti-condensation heating shall be provided.
Temperature and relative humidity shall be monitored.
5.2.11 Mechanical space(s)
Temperature and relative humidity shall be monitored.
If the mechanical space accommodates electrical equipment then the requirements of 5.2.10 apply.
5.2.12 Control room space(s)
Comfort environmental controls shall be applied to this space.
5.2.13 Office space(s)
C
...
SLOVENSKI STANDARD
oSIST prEN 50600-2-3:2013
01-oktober-2013
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: prEN 50600-2-3:2013
ICS:
35.020 Informacijska tehnika in Information technology (IT) in
tehnologija na splošno general
35.110 Omreževanje Networking
91.140.50 Sistemi za oskrbo z elektriko Electricity supply systems
oSIST prEN 50600-2-3:2013 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 50600-2-3:2013
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oSIST prEN 50600-2-3:2013
DRAFT
EUROPEAN STANDARD
prEN 50600-2-3
NORME EUROPÉENNE
June 2013
EUROPÄISCHE NORM
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 - Informationstechnik -
Installation et infrastructures des centres Einrichtungen und Infrastrukturen von
de traitement de données - Rechenzentren --Teil 2-3: Überwachung
Partie 2-3: Contrôle environnemental der Umgebung
This draft European Standard is submitted to CENELEC members for CENELEC enquiry.
Deadline for CENELEC: 2013-11-22.
It has been drawn up by CLC/TC 215.
If this draft becomes a European Standard, 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.
This draft European Standard was established by CENELEC 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.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of
which they are aware and to provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to
change without notice and shall not be referred to as a European Standard.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
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.
Project: 23544 Ref. No. prEN 50600-2-3:2013 E
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oSIST prEN 50600-2-3:2013
prEN 50600-2-3:2013 – 2 –
1 Contents
2 Foreword . 4
3 Introduction . 5
4 1 Scope and conformance . 7
5 1.1 Scope . 7
6 1.2 Conformance . 7
7 2 Normative references. 7
8 3 Terms, definitions and abbreviations . 8
9 3.1 Terms and definitions . 8
10 3.2 Abbreviations . 9
11 4 Environmental control within data centres . 10
12 4.1 General . 10
13 4.2 Minimum Environmental Requirements for Spaces (from EN 50600-1) . 11
14 5 Availability . 14
15 5.1 General . 14
16 5.2 Design options by space . 14
17 5.3 Environmental control system capacity planning with respect to expansion . 18
18 5.4 Environmental control system capacity planning with respect to resilience . 18
19 6 Physical Security . 18
20 6.1 General . 18
21 6.2 Access . 18
22 7 Energy Efficiency Enablement . 18
23 7.1 General . 18
24 7.2 Measurement of temperature . 18
25 7.3 Measurement of humidity . 20
26 7.4 Measurement of air pressure . 21
27 7.5 Coolant flow rates . 21
28 7.6 Heat removal . 21
29 7.7 Proportion of outside air . 21
30 7.8 Provision of alarms . 21
31 Annex A (normative) Distribution methodologies for temperature-controlled air in computer
32 room space . 22
33 Annex B (informative) Control system concepts . 25
34 Bibliography . 26
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35 Figures
36 Figure 1 - Schematic relationship between the EN 50600 standards . 6
37 Tables
38 Table 1 – Examples of Primary and Secondary Functional Elements . 10
39 Table A.1 – Free height of access floor . 22
40
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41 Foreword
42 This document (prEN 50600-2-3:2013) has been prepared by CLC/TC 215 "Electrotechnical aspects of
43 telecommunication equipment".
44 This document is currently submitted to the Enquiry.
45 This document has been prepared under a mandate given to CENELEC by the European Commission and
46 the European Free Trade Association.
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47 Introduction
48 The unrestricted access to internet-based information demanded by the information society has led to an
49 exponential growth of both internet traffic and the volume of stored/retrieved data. Data centres are housing
50 and supporting the information technology and network telecommunications equipment for data processing,
51 data storage and data transport. They are required both by network operators (delivering those services to
52 customer premises) and by enterprises within those customer premises.
53 Data centres need to provide modular, scalable and flexible facilities and infrastructures to easily
54 accommodate the rapidly changing requirements of the market. In addition, energy consumption of data
55 centres has become critical both from an environmental point of view (reduction of carbon footprint) and with
56 respect to economical considerations (cost of energy) for the data centre operator.
57 The implementation of data centres varies in terms of:
58 a) purpose (enterprise, co-location, co-hosting or network operator facilities);
59 b) security level;
60 c) physical size;
61 d) accommodation (mobile, temporary and permanent constructions).
62 The needs of data centres also vary in terms of availability of service, the provision of security and the
63 objectives for energy efficiency. These needs and objectives influence the design of data centres in terms of
64 building construction, power distribution, environmental control and physical security. Effective management
65 and operational information is required to monitor achievement of the defined needs and objectives.
66 This series of European Standards specifies requirements and recommendations to support the various
67 parties involved in the design, planning, procurement, integration, installation, operation and maintenance of
68 facilities and infrastructures within data centres. These parties include:
69 1) owners, facility managers, ICT managers, project managers, main contractors;
70 2) architects, building designers and builders, system and installation designers;
71 3) facility and infrastructure integrators, suppliers of equipment;
72 4) installers, maintainers.
73 At the time of publication of this European Standard, EN 50600 series will comprise the following standards:
74 − EN 50600-1: Information technology – Data centre facilities and infrastructures – Part 1: General
75 concepts;
76 − EN 50600-2-1: Information technology – Data centre facilities and infrastructures – Part 2-1: Building
77 construction;
78 − EN 50600-2-2: Information technology – Data centre facilities and infrastructures – Part 2-2: Power
79 distribution;
80 − EN 50600-2-3: Information technology – Data centre facilities and infrastructures – Part 2-3:
81 Environmental control;
82 − EN 50600-2-4: Information technology – Data centre facilities and infrastructures – Part 2-4:
83 Telecommunications cabling infrastructure;
84 − EN 50600-2-5: Information technology – Data centre facilities and infrastructures – Part 2-5: Security
85 systems;
86 − EN 50600-2-6: Information technology – Data centre facilities and infrastructures – Part 2-6:
87 Management and operational information.
88 The inter-relationship of the standards within the EN 50600 series is shown in Figure 1.
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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
89
90 Figure 1 - Schematic relationship between the EN 50600 standards
91 EN 50600-2-X standards specify requirements and recommendations for particular facilities and infra-
92 structures to support the relevant classification for “availability”, “physical security” and ‘energy efficiency
93 enablement” selected from EN 50600-1.
94 This European Standard addresses the environmental control facilities and infrastructure within data centres
95 together with the interfaces for monitoring the performance of those facilities and infrastructures in line with
96 EN 50600-2-6 (in accordance with the requirements of EN 50600-1).
97 This European Standard is intended for use by and collaboration between architects, building designers and
98 builders, system and installation designers.
99 NOTE The “intended for” text above needs to be reviewed and definitions need to be created for each of the “responsible persons”.
100 This series of European Standards does not address the selection of information technology and network
101 telecommunications equipment, software and associated configuration issues.
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102 1 Scope and conformance
103 1.1 Scope
104 This European Standard addresses environmental control within data centres based upon the criteria and
105 classifications for “availability”, “security” and “energy efficiency enablement” within EN 50600-1.
106 This European Standard specifies requirements and recommendations for the following:
107 a) temperature control
108 b) fluid movement control
109 c) humidity control
110 d) particulate control
111 e) vibration
112 f) floor layout and equipment locations
113 g) energy saving practices
114 h) physical security of environmental control systems
115 For issues related to electromagnetic environment see EN 50600-2-5.
116 1.2 Conformance
117 For a data centre to conform to this European Standard:
118 a) it shall feature an environmental control solution that meets the requirements of Clause 4 for each
119 identified space, which is predicted to meet the relevant availability requirements of Clause 5 where the
120 space has scalable requirements;
121 b) it shall feature an approach to physical security in relation to the environmental control solution that
122 meets the requirements of Clause 6;
123 c) it shall feature an energy efficiency enablement solution that meets the requirements of the relevant
124 Complexity Level of Clause 7;
125 d) local regulations, including safety, shall be met.
126 2 Normative references
127 The following documents, in whole or in part, are normatively referenced in this document and are
128 indispensable for its application. For dated references, only the edition cited applies. For undated references,
129 the latest edition of the referenced document (including any amendments) applies.
130 EN 50600-1, Information technology — Data centre facilities and infrastructures – Part 1: General concepts
1)
131 EN 50600-2-1 , Information technology — Data centre facilities and infrastructures – Part 2-1: Building
132 construction
2)
133 EN 50600-2-5, Information technology — Data centre facilities and infrastructures – Part 2-5: Security
134 systems
———————
1)
Approved for formal vote.
2)
Under consideration.
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135 3 Terms, definitions and abbreviations
136 3.1 Terms and definitions
137 For the purposes of this document, the terms and definitions in EN 50600-1 and the following apply:
138 3.1.1
139 adiabatic cooling
140 adiabatic cooling is a cooling system that is using the evaporative cooling principle to reduce the air
141 temperature
142 3.1.2
143 absolute humidity
144 quantity of water vapour in a given volume of air, expressed by mass
145 3.1.3
146 access floor
147 system consisting of completely removable and interchangeable floor panels that are supported on
148 adjustable pedestals, pedestals connected by stringers to allow access to the area beneath
149 Note 1 to entry: also known as raised floor
150 [SOURCE: prEN 50600-2-1:2012, 3.1.1]
151 3.1.4
152 dew point
153 temperature at which the water vapour in a gas begins to deposit as a liquid or ice, under standardized
154 conditions
155 [SOURCE: IEC 60050-212:2010, 212-18-11]
156 3.1.5
157 enthalpy
158 for any system, that is, the volume of substance under discussion, enthalpy is the sum of the internal energy
159 of the system plus the system's volume multiplied by the pressure exerted by the system on its surroundings
160 3.1.6
161 exhaust air temperature
162 the temperature of the air leaving the data centre building
163 3.1.7
164 free cooling
165 cooling system that uses the external ambient conditions to cool the data centre without using a refrigeration
166 cycle (no compressor operation)
167 3.1.8
168 fresh air cooling
169 cooling system that uses the external air to cool the data centre either directly or indirectly
170 3.1.9
171 fresh air make up
172 form of air handler that "conditions" fresh air as it is continuously introduced into the data centre
173 Note 1 to entry: It is designed to remove moisture and a range of other airborne particulates that could in time erode the integrity and
174 quality of the environment.
175 Note 2 to entry: Removal of the particulate matter results in a cleaner overall environment.
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176 3.1.10
177 heat load
178 thermal power that is produced
179 3.1.11
180 information technology equipment
181 equipment providing data storage, processing and transport services together with equipment dedicated
182 to providing direct connection to core and/or access networks
183 3.1.12
184 latent heat
185 amount of heat which is absorbed or evolved in changing the state of a substance without changing its
186 temperature, e.g., in freezing or vaporizing water.
187 3.1.13
188 outdoor air temperature
189 temperature of the air measured outside of the data centre building
190 3.1.14
191 relative humidity
192 ratio, expressed as a percentage, of the vapour pressure of water vapour in moist air to the saturation
193 vapour pressure with respect to water or ice at the same temperature
194 [SOURCE: IEC 60050-705:1995, 705-05-09]
195 3.1.15
196 return air temperature
197 temperature of the air entering the air handling unit
198 3.1.16
199 sensible heat
200 heat absorbed or evolved by a substance during a change of temperature that is not accompanied by a
201 change of state
202 3.1.17
203 supply air temperature
204 temperature of the air entering the IT equipment.
205 3.1.18
206 ventilation
207 supply of air motion in a space by circulation or by moving air through the space
208 Note 1 to entry: Ventilation can be produced by any combination of natural or mechanical supply and exhaust.
209 Note 2 to entry: Such systems may include partial treatment such as heating, humidity control, filtering or purification, and, in some
210 cases, evaporative cooling.
211 3.2 Abbreviations
212 For the purposes of this document, the abbreviations given in EN 50600-1 and the following apply.
213 UPS Uninterruptible Power Supply
214 CRAC Computer Room Air Conditioning (Unit)
215 IT Information technology
216 ITE Information technology equipment
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217 4 Environmental control within data centres
218 4.1 General
219 The environmental control system is one of the most important parts of the data centre infrastructure.
220 Excessive variations of temperature or humidity may directly affect the functional capability of the data centre
221 and its infrastructure.
222 The functional elements of the environmental control system may be divided into primary and secondary
223 elements.
224 Primary elements are related to the mechanical generation of temperature controlled fluids. Secondary
225 elements are related to the distribution of fluids generated by the primary elements. See Table 1 for
226 examples of these elements.
227 Some systems combine the function of primary and secondary elements.
228 Table 1 – Examples of Primary and Secondary Functional Elements
Area Fluid Functional Element(s)
Primary Water Water supply grid, chiller,
pump(s)
Air Outside air intake, Filter, heat
exchanger
Secondary Water Pump(s), Valve(s), pipe
system, liquid cooled
enclosures
Air Duct system, cassette
229
230 It should be noted that a Class 1 data centre does not necessarily contain any of these elements.
231 A general cooling plan should be designed which takes into account available technology, physical security
232 and data centre availability. Redundant systems may lead to cost savings during maintenances of power
233 systems.
234 It should be noted that for legacy loads (where precision control of temperature, humidity and filtration to
235 close limits is required) the level of energy efficiency will be limited by the local external ambient weather
236 profile. Where wider tolerances of temperature and humidity can be tolerated in defined spaces the
237 opportunities for improved energy efficiency may be greater.
238 The design of the environmental control system and the selection and installation of functional elements shall
239 take into consideration the effect of vibration on the data centre spaces.
240 It is recommended to use cooling units with integrated vibration decoupling for all rotating parts (e.g. fan,
241 compressor) or low vibration parts. If the cooling units or other external components with rotating parts are
242 not equipped with integrated vibration decoupling the whole unit should be decoupled.
243 The design of the environmental control system and the selection and installation of functional elements shall
244 take into consideration the effect of friction and/or obstruction in the pathways for temperature controlled
245 fluids. Operational controls shall be provided to ensure no degradation of fluid flow due to changes in the
246 pathways.
247 During the design phase the requirement for the number of air changes per unit time and air pressure shall
248 be established.
249 In all data centre spaces the requirements for filtration shall be considered.
250 In all spaces where there is a risk of damage to static-sensitive equipment from electro-static discharge the
251 relative humidity shall be maintained above 5%.
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252 Where direct fresh air cooling solutions are chosen the requirements analysis and the resulting methodology
253 of monitoring and control is of prime importance. In these circumstances particular consideration shall be
254 given to the control of contaminants.
255 4.2 Minimum Environmental Requirements for Spaces (from EN 50600-1)
256 4.2.1 Building entrance facilities
257 No specific requirements.
258 4.2.2 Personnel entrance(s)
259 Comfort environmental controls shall be applied to this space and closed loop monitoring shall be provided.
260 4.2.3 Docking/loading bay(s)
261 No specific requirements.
262 4.2.4 Generator space(s) including fuel storage
263 Temperature shall be maintained in accordance with manufacturer’s instructions. Where no information
264 exists or where the equipment manufacturer is not specified the temperature shall be maintained above 0°C
265 and should be above 10°C.
266 Adequate ventilation shall be provided for combustion and for radiator cooling.
267 The maximum ambient temperature shall not exceed the maximum temperature specified by the equipment
268 manufacturer unless the system has been de-rated for operation at higher ambient temperatures. Where the
269 manufacturer is not known at the time of design the maximum temperature shall be 35°C.
270 Where fitted, crankcase heaters should be equipped with a thermostatic cut-off.
271 Anti-condensation heating shall be provided for alternators and switchgear.
272 The fuel storage system shall be protected against continuous sub-zero ambient temperatures to avoid fuel
273 solidification.
274 Monitoring for temperature, particulates (smoke, CO, fuel) shall be provided.
275 4.2.5 Transformer space(s)
276 Temperature shall be maintained in accordance with manufacturer’s instructions. Where no information
277 exists or where the equipment manufacturer is not specified the temperature shall be maintained above 0°C
278 and should be above 10°C.
279 The maximum ambient temperature shall not exceed the maximum temperature specified by the equipment
280 manufacturer unless the system has been de-rated for operation at higher ambient temperatures. Where the
281 manufacturer is not known at the time of design the maximum temperature shall be 35°C.
282 Where required by the manufacturer of the equipment filtration against dust shall be provided.
283 Forced air cooling of the transformer should be considered at the design phase where this would represent
284 an improvement in transformer efficiency.
285 Anti-condensation heating shall be provided for switchgear.
286 Monitoring for temperature, particulates (smoke) shall be provided.
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287 4.2.6 Electrical distribution space(s)
288 Temperature shall be maintained in accordance with manufacturer’s instructions. Where no information
289 exists or where the equipment manufacturer is not specified the temperature shall be maintained above 0°C
290 and should be above 10°C.
291 Natural ventilation shall be provided.
292 The maximum ambient temperature shall not exceed the maximum temperature specified by the equipment
293 manufacturer unless the system has been de-rated for operation at higher ambient temperatures. Where the
294 manufacturer is not known at the time of design the maximum temperature shall be 40°C.
295 Anti-condensation heating shall be provided.
296 Temperature controlled air extraction shall be provided, where the facility’s redundancy so requires
297 ventilation shall be by redundant fans each rated to the maximum load expected.
298 Monitoring for temperature and humidity shall be provided.
299 4.2.7 Telecommunication spaces(s)
300 Temperature and humidity shall be maintained in accordance with the instructions of the supplier of the
301 equipment to be accommodated. Where this is not known in advance basic environmental controls shall be
302 applied.
303 4.2.8 Main Distributor spaces(s)
304 If external to computer room space the requirements of 4.2.7 shall be applied; if contained within the
305 computer room space then the requirements of 4.2.9 shall be applied.
306 4.2.9 Computer room space(s) and associated testing space(s)
307 The computer room space is from an environmental control perspective the most important space.
308 An analysis examining the balance between tight environmental controls versus high performance energy
309 saving controls with reference to the type of IT equipment to be accommodated shall be performed by the
310 owner of the data centre. The results of this analysis shall be contrasted with the business model for the data
311 centre.
312 Environmental controls shall be applied that maintain the following parameters within limits defined by the
313 requirements of the analysis described above.
314 a) Operating Temperature;
315 b) Humidity;
316 c) Air quality
317 1) Particulate content;
318 2) Bacterial content;
319 3) Gaseous contaminants.
320 The designer of the environmental control system shall assess the impact of the failure of the system on the
321 data centre infrastructure.
322 Where liquid based cooling systems are used leak detection and mechanical containment systems shall be
323 provided.
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324 4.2.10 Electrical space(s)
325 If the electrical space contains UPS equipme
...
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