1、Information technology Data centre facilities andinfrastructuresPart 4-2: Power Usage EffectivenessBS EN 50600-4-2:2016Incorporating corrigendum February 2017BSI Standards PublicationBS EN 50600-4-2:2016 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 50600-4-2:
2、2016, incorporating corrigendum February 2017.The UK participation in its preparation was entrusted to Technical Committee TCT/7, Telecommunications - Installation requirements.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not
3、 purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2017. Published by BSI Standards Limited 2017ISBN 978 0 580 97919 4ICS 35.020; 35.110; 35.160Compliance with a British Standard cannot confer immunity
4、from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 January 2017.Amendments/corrigenda issued since publicationDate Text affected31 March 2017 Implementation of CENELEC corrigendum February 2017: Figure B.2, Figure B.6 a
5、nd Figure B.7 correctedBS EN 50600-4-2:2016EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 50600-4-2 December 2016 ICS 35.020; 35.110; 35.160 English Version Information technology - Data centre facilities and infrastructures - Part 4-2: Power Usage Effectiveness Technologie de linformation - I
6、nstallation et infrastructures de centres de traitement de donnes - Partie 4-2 : Efficacit de lutilisation de lnergie Informationstechnik - Einrichtungen und Infrastrukturen von Rechenzentren - Teil 4-2: Kennzahl zur eingesetzten Energie This European Standard was approved by CENELEC on 2016-10-10.
7、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
8、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
9、 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, Hun
10、gary, 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 Comit Europen de Normalisation Electrotechni
11、que Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN 50600-4-2:2016 EBS EN 50600-4-2:2016EN 50600-4-2:2016 2 Conte
12、nts PageEuropean foreword 5 Introduction . 6 1 Scope . 9 2 Normative references . 9 3 Terms, definitions and abbreviations . 9 3.1 Terms and definitions . 9 3.2 Abbreviations 10 3.3 Symbols 11 4 Applicable area of the data centre . 11 5 Determination of Power Usage Effectiveness 12 5.1 General . 12
13、5.2 Total data centre energy consumption . 12 5.3 Total data centre energy consumption in mixed-use buildings 13 6 Measurement of Power Usage Effectiveness 13 6.1 Measuring energy consumption . 13 6.1.1 General 13 6.1.2 Measurement period and frequency . 13 6.1.3 Meter and measurement requirements .
14、 13 6.2 Categories of Power Usage Effectiveness . 14 6.2.1 General 14 6.2.2 Category 1 (PUE1) basic resolution . 14 6.2.3 Category 2 (PUE2) intermediate resolution . 15 6.2.4 Category 3 (PUE3) advanced resolution . 15 6.2.5 Measurement placement. 15 7 Reporting of Power Usage Effectiveness 15 7.1 Re
15、quirements . 15 7.1.1 Standard construct for communicating PUE data . 15 7.1.2 Example of reporting PUE values . 15 7.1.3 Data for public reporting PUE . 16 7.2 Recommendations . 16 7.2.1 Use of PUE Category 16 7.2.2 Trend tracking data . 16 Annex A (normative) Energy measurements 18 A.1 Measuring e
16、nergy and calculating Power Usage Effectiveness 18 A.2 Measurement locations 18 BS EN 50600-4-2:2016EN 50600-4-2:2016 3 A.3 Assessment frequencies 19 Annex B (informative) Calculation of PUE using various energy supplies 20 B.1 Examples of PUE calculation with various energy supplies. 20 B.2 Example
17、s of PUE calculation with cogeneration using electricity and natural gas 21 B.3 Examples of PUE calculation with absorption type chiller . 22 Annex C (normative) PUE derivatives . 24 C.1 General . 24 C.1.1 Purpose of PUE derivatives 24 C.1.2 Using PUE derivatives 24 C.2 Interim PUE 25 C.3 Partial PU
18、E (pPUE) 25 C.3.1 General 25 C.3.2 Zoning . 26 C.3.3 Metering requirements for pPUE 27 C.3.4 Reporting of pPUE 27 C.3.5 Use of pPUE in energy management . 28 C.3.6 Use of pPUE in mixed use buildings . 28 C.4 Designed PUE 29 Annex D (informative) Interpretation of PUE and its derivatives . 32 D.1 Gen
19、eral . 32 D.2 Data centre infrastructure versus IT equipment . 32 D.3 Comparing PUE results between data centres 33 Bibliography 34 Figures Figure 1 Schematic relationship between the EN 50600 series of documents . 7 Figure A.1 Schematic of PUE calculation from measurements . 18 Figure A.2 Monitorin
20、g and measurement points 19 Figure B.1 Example for a data centre purchasing all electricity. 20 Figure B.2 Example for a data centre purchasing electricity and chilled water . 20 Figure B.3 Example for a data centre purchasing natural gas 21 Figure B.4 Example for a data centre purchasing electricit
21、y and natural gas . 21 Figure B.5 Method 1: Measured by chilled water flow . 22 Figure B.6 Method 2: Calculated from energy required to produce chilled water . 22 Figure B.7 Method 1: Measured by chilled water flow . 22 Figure B.8 Method 2: Measured by input gas 23 Figure C.1 Zoning for a data centr
22、e . 26 Figure C.2 Zoning for a data centre using DX cooling . 27 Figure C.3 Zoning for a data centre using water . 27 Figure C.4 Example of utilizing the combination of PUE derivatives: ipPUE 28 BS EN 50600-4-2:2016EN 50600-4-2:2016 4 Tables Table 1 PUE Categories 14 Table 2 Examples of PUE reportin
23、g 15 Table C.1 Example of dPUE calculation 30 Table C.2 Example of context description . 31 BS EN 50600-4-2:2016EN 50600-4-2:2016 5 European foreword This document (EN 50600-4-2:2016) has been prepared by CLC/TC 215 “Electrotechnical aspects of telecommunication equipment”. The following dates are f
24、ixed: latest date by which this document hasto be implemented at national level bypublication of an identical nationalstandard or by endorsement(dop) 2017-07-10 latest date by which the nationalstandards conflicting with thisdocument have to be withdrawn(dow) 2019-10-10 Attention is drawn to the pos
25、sibility 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 T
26、rade Association. Regarding the various parts in the EN 50600 series, see the Introduction. BS EN 50600-4-2:2016EN 50600-4-2:2016 6 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
27、 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 ente
28、rprises 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 poi
29、nt of view (reduction of carbon footprint) and with respect to economic 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
30、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 cons
31、truction, 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 part
32、ies 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, consultants, building de
33、signers 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 and documents: EN 50600-1, Information
34、 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 distributi
35、on; 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; BS EN 50600-4-2:2016EN 50600-4-2:2016 7 EN 50600-2
36、-5, Information technology Data centre facilities and infrastructures Part 2-5: Security systems; EN 50600-3-1, Information technology Data centre facilities and infrastructures Part 3-1: Management and operational information; EN 50600-4-1, Information technology Data centre facilities and infrastr
37、uctures Part 4-1: Overview of and general requirements for key performance indicators; EN 50600-4-2, Information technology Data centre facilities and infrastructures Part 4-2: Power Usage Effectiveness; EN 50600-4-3, Information technology Data centre facilities and infrastructures Part 4-3: Renewa
38、ble Energy Factor; CLC/TR 50600-99-1, Information technology Data centre facilities and infrastructures Part 99-1: Recommended practices for energy management. The inter-relationship of the standards within the EN 50600 series is shown in Figure 1. Figure 1 Schematic relationship between the EN 5060
39、0 series of documents 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 speci
40、fy 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.
41、In todays digital society data centre growth, and power consumption in particular, is an inevitable consequence and that growth will demand increasing power consumption despite the most stringent energy efficiency strategies. This makes the need for key performance indicators that cover the effectiv
42、e use of resources (including but not limited to energy) and the reduction of CO2emissions essential. BS EN 50600-4-2:2016EN 50600-4-2:2016 8 NOTE Within the EN 506004-X series, the term “resource usage effectiveness” is more generally used for KPIs in preference to “resource usage efficiency”, whic
43、h is restricted to situations where the input and output parameters used to define the KPI have the same units. In order to enable the optimum resource effectiveness of data centres a suite of effective KPIs is needed to measure and report on resources consumed in order to develop an improvement roa
44、dmap. These standards are intended to accelerate the provision of operational infrastructures with improved resource usage effectiveness. This European Standard specifies Power Usage Effectiveness (PUE), which has become a popular metric to determine the efficient utilization and distribution of ene
45、rgy resources within a data centre. It is recognized that the term “efficiency” should be employed for PUE but “effectiveness” provides continuity with earlier market recognition of the term. Additional standards in the EN 50600-4-X series will be developed, each describing a specific KPI for resour
46、ce usage effectiveness or efficiency. The EN 50600-4-X series does not specify limits or targets for any KPI and does not describe or imply, unless specifically stated, any form of aggregation of individual KPIs into a combined nor an overall KPI for data centre resource usage effectiveness or effic
47、iency. This European Standard is intended for use by and collaboration between data centre managers, facility managers, ICT managers, and main contractors. This series of European Standards does not address the selection of information technology and network telecommunications equipment, software an
48、d associated configuration issues. BS EN 50600-4-2:2016EN 50600-4-2:2016 9 1 Scope This European Standard specifies the Power Usage Effectiveness (PUE) as a Key Performance Indicator (KPI) to quantify the efficient use of energy in the form of electricity. NOTE See the Note 1 to entry in Definition
49、3.1.3. This European Standard: a) defines the Power Usage Effectiveness (PUE) of a data centre;b) introduces PUE measurement categories;c) describes the relationship of this KPI to a data centres infrastructure, information technology equipmentand information technology operations;d) defines the measurement, the calculation and the reporting of the parameter;e) provides information on the correct interpretation of the PUE.PUE derivatives are described in
