[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f2fduox5y9si9r":3,"$f13cypio6dlew1":95,"newsroom-has-articles-en":153,"hub-part-en-part-4-2-pue":156,"seminar-cards-en":378},{"data":4},[5,20,30,37,46,54,62,71,80,87],{"id":6,"status":7,"seminar_id":8,"image_main":9,"title":10,"subtitle":11,"slug":12,"short_description":13,"durationDays":14,"formats":15,"formatsOnRequest":19},1,"published","DC-21001","4ec0f043-60ac-4b01-a082-e9c8d2fefe41","Data Center – General Principles",null,"data-center-basic-principles","A fundamental overview of the essential terminologies, trades, key concepts, standards, trends, and best practices in the data center.",3,[16,17,18],"praesenz","live-webinar","videokurs",false,{"id":21,"status":7,"seminar_id":22,"image_main":23,"title":24,"subtitle":25,"slug":26,"short_description":27,"durationDays":28,"formats":29,"formatsOnRequest":19},2,"DC-21002","144bcbbd-cb3e-4ebc-9183-2f5b104b9072","Data Center Design & Implementation","according to EN 50600 and ISO\u002FIEC 22237","data-center-design-implementation","Best practices for designing and implementing data centers according to EN 50600 & ISO\u002FIEC 22237.",5,[16,17],{"id":14,"status":7,"seminar_id":31,"image_main":32,"title":33,"subtitle":11,"slug":34,"short_description":35,"durationDays":28,"formats":36,"formatsOnRequest":19},"DC-21003","b94540de-de24-4383-9c44-0c4207e91a14","Data Center Operations – Professional","data-center-operations-professional","Best practices and case studies provide a deep understanding of the necessary processes and systems to operate a data center efficiently and effectively.",[16,17],{"id":38,"status":7,"seminar_id":39,"image_main":40,"title":41,"subtitle":42,"slug":43,"short_description":44,"durationDays":28,"formats":45,"formatsOnRequest":19},4,"DC-21004","19eb687a-6272-4ff9-b872-2dbcaceb54fd","Deep Dive – Power Supply & Cooling","according to EN 50600","deep-dive-energy-supply-air-conditioning-en-50600","Best practices and case studies provide a deep understanding of the two major trades in the data center.",[16,17],{"id":28,"status":7,"seminar_id":47,"image_main":48,"title":49,"subtitle":50,"slug":51,"short_description":52,"durationDays":28,"formats":53,"formatsOnRequest":19},"DC-21006","5ce01d58-7ac1-494b-a8e1-3cc752d338b7","Data Center Migration","moving IT from an existing facility to a new build","data-center-migration","Navigate safely through the complex journey of data center migration.",[16],{"id":55,"status":7,"seminar_id":56,"image_main":57,"title":58,"subtitle":11,"slug":59,"short_description":60,"durationDays":28,"formats":61,"formatsOnRequest":19},6,"DC-21008","22658b8c-b308-4ce5-a485-be638aa25ebe","Data Center Sustainability & Efficiency","data-center-sustainability-efficiency","Legal foundations, criteria catalogs, developments, and technical solutions",[16],{"id":63,"status":7,"seminar_id":64,"image_main":65,"title":66,"subtitle":11,"slug":67,"short_description":68,"durationDays":6,"formats":69,"formatsOnRequest":70},7,"DC-21009","4c7858fc-30cf-4d07-8e96-cd2c03057f76","Update – EN 50600 and ISO\u002FIEC 22237‑x","update-en-50600-iso-iec-22237-x","The most important changes and differences from the previous standards of the EN 50600 series as well as the major differences between the European and international versions.",[16,17],true,{"id":72,"status":7,"seminar_id":73,"image_main":74,"title":75,"subtitle":76,"slug":77,"short_description":78,"durationDays":14,"formats":79,"formatsOnRequest":19},9,"DC-21010","d87cc210-19f8-4fc2-8ba3-3bfceb69817c","Energy Management According to ISO 50001","for data centers under Section 12 EnEfG","energy-management-din-en-50001","Legally compliant implementation of the Energy Efficiency Act for data centers",[16],{"id":81,"status":7,"seminar_id":82,"image_main":83,"title":84,"subtitle":11,"slug":85,"short_description":11,"durationDays":14,"formats":86,"formatsOnRequest":19},10,"DC-21011","814710db-8b32-40f8-8137-b0fea109c79b","Liquid Cooling, DC Power and High-Bandwidth Cabling","liquid-cooling-dc-power-high-bandwidth-cabling",[16],{"id":88,"status":7,"seminar_id":89,"image_main":90,"title":91,"subtitle":11,"slug":92,"short_description":93,"durationDays":6,"formats":94,"formatsOnRequest":19},8,"DCS-23001","83d21d07-5ee9-4726-a8a0-a32cec614e66","Data Center Passport","data-center-passport","Basic understanding of data centers, structure, components, and trades. Orientation and behavioral guidelines for working in data centers.",[17],{"data":96},[97,110,122,133,143],{"id":98,"status":7,"sort":6,"slug":99,"position":100,"cv":101,"linkedin":102,"phone":103,"signature_email":104,"first_name":105,"last_name":106,"avatar":107,"profile":108},"9eff7954-eeab-4a8f-96d7-fd578be1b1b1","thomas-wawra","CEO","\u003Cp>Dipl. Ing. Thomas Wawra gr&uuml;ndete 2007 die DCE academy und entwickelte Sie zum f&uuml;hrenden Anbieter von herstellerneutralen Schulungen im Bereich Rechenzentrum basierend auf der Norm EN 50600. Als Sponsor unterst&uuml;tzt er aktiv die Internationalisierung der Norm zur ISO 22237 und referiert weltweit auf Kongressen zu Normierungsfragen.\u003C\u002Fp>\n\u003Cp>In den Jahren 2002 bis 2006 war Thomas Wawra Gesamtverantwortlicher f&uuml;r das Auslandsgesch&auml;ft der Venali Inc., Miami, USA. In dieser Zeit leitete er den gesamten Bereich Vertrieb und baute strategische Partnerschaften mit Unternehmen wie, Microsoft und SAP erfolgreich auf. Davor bekleidete er die Position des Gesch&auml;ftsf&uuml;hrers der Venali Europe GmbH, einem Start Up Unternehmen im Bereich Secure Messaging. In dieser Rolle trug er ebenfalls ma&szlig;geblich zum Erfolg des Unternehmens bei und er&ouml;ffnete im Zeitraum von 1996 bis 2007 die Niederlassungen in London, Singapur und Deutschland. Zudem zeichnete er f&uuml;r die Konzipierung und Umsetzung des gesamten Vertriebskonzeptes verantwortlich und war an der Sicherung der Finanzierung durch die Gewinnung von Venture Capital-Gebern sowie Business Angels wesentlich beteiligt.\u003C\u002Fp>\n\u003Cp>Thomas Wawra ist diplomierter Maschinenbauingenieur der Technischen Universit&auml;t M&uuml;nchen.\u003C\u002Fp>","https:\u002F\u002Fwww.linkedin.com\u002Fin\u002Fthomas-wawra-a780425\u002F","+49 163 6010442","thomas.wawra@dce-academy.com","Thomas","Wawra","0afd33cf-4d17-49f6-9dfa-f71b65dc15db",{"kind":109,"slug":99},"team",{"id":111,"status":7,"sort":21,"slug":112,"position":113,"cv":114,"linkedin":115,"phone":116,"signature_email":117,"first_name":118,"last_name":119,"avatar":120,"profile":121},"adc4834c-325d-45ca-bb3e-d3eeb380b962","sebastian-galleitner","CMO & CTO","\u003Cp>Sebastian Galleitner verfügt über mehr als 25 Jahre Expertise im strategischen Marketing und in der Entwicklung digitaler Lösungen. Als Chief Marketing Officer der DCE academy verantwortet er die gesamte Kommunikationsstrategie und Markenführung der Academy.\u003C\u002Fp>\u003Cp>Sein fachlicher Hintergrund umfasst umfangreiche Erfahrung in der Konzeption und Umsetzung komplexer Marketingstrategien für technologieorientierte Unternehmen. Diese Fachkompetenz ergänzt ideal die herstellerunabhängige, technische Expertise der DCE academy im Rechenzentrumsbereich.\u003C\u002Fp>\u003Cp>In seiner Funktion sorgt er dafür, dass die präzisen Schulungsangebote ihre Zielgruppen erreichen und die DCE academy als führende Autorität für Rechenzentrumsexpertise wahrgenommen wird. Dabei setzt er auf eine systematische, faktenbasierte Kommunikation, die den hohen Qualitätsanspruch der Ausbildungen widerspiegelt.\u003C\u002Fp>\u003Cp>Vor seiner Tätigkeit für die DCE academy hat Sebastian Galleitner erfolgreich Marketingstrategien für namhafte Unternehmen in der Finanz- und Automobilbranche entwickelt und ist mit den besonderen Anforderungen technisch anspruchsvoller B2B-Kommunikation bestens vertraut.\u003C\u002Fp>\u003Cp>Die Verbindung aus methodischem Marketing-Know-how und Verständnis für technische Zusammenhänge ermöglicht es ihm, die komplexen Inhalte der Schulungen zielgruppengerecht aufzubereiten und den besonderen Wert der praxisorientierten Wissensvermittlung zu kommunizieren.\u003C\u002Fp>","https:\u002F\u002Fwww.linkedin.com\u002Fin\u002Fsebastian-galleitner\u002F","+491749793327","sebastian.galleitner@dce-academy.com","Sebastian","Galleitner","d168850c-990d-467a-8150-97954ef803ef",{"kind":109,"slug":112},{"id":123,"status":7,"sort":14,"slug":124,"position":125,"cv":126,"linkedin":127,"phone":11,"signature_email":128,"first_name":129,"last_name":130,"avatar":131,"profile":132},"dd1bebf0-6d1f-4262-9ec4-524ed59d3901","juergen-strate","Chief Education & Alliance Officer","\u003Cp>J&uuml;rgen Strate, Dipl.-Ing. der Versorgungstechnik, war als Direktor f&uuml;r Sales &amp; Strategic Business Development f&uuml;r den Gesch&auml;ftsbereich Site and Facilities Services D\u002FA\u002FCH der IBM Deutschland GmbH verantwortlich.&nbsp;\u003C\u002Fp>\n\u003Cp>Er war seit 1990 Mitarbeiter der IBM Deutschland.&nbsp; Herr Strate begann seine Karriere bei IBM als Spezialist f&uuml;r Anlagentechnik im Bereich Chemische Verfahrenstechnik im IBM Halbleiterwerk B&ouml;blingen\u002FSindelfingen. Anschlie&szlig;end wechselte er in den IBM Bereich Industry Solution verbunden mit der Qualifizierung zum IT-Systemingenieur.\u003C\u002Fp>\n\u003Cp>Seit 1998 geh&ouml;rte er dem Gesch&auml;ftsbereich Site and Facilities Services der IBM an.&nbsp; In verschiedenen Rollen verf&uuml;gt er seit mehr als 25 Jahren &uuml;ber umfangreiche Erfahrung in der Beratung, Planung und Realisierung von Rechenzentren unter Sicherheits- und Verf&uuml;gbarkeitsaspekten. Hierzu geh&ouml;rte auch eine umfassende und professionelle Begleitung von der Rechenzentrumsstrategie &uuml;ber Planung und Realisierung bis zur Indienstsetzung von Rechenzentren. Er hat den Gesch&auml;ftsbereich Site and Facilities Services f&uuml;r IBM mitgestaltet und aufgebaut sowie die Entwicklung standardisierter Rechenzentrumsl&ouml;sungen f&uuml;r den Mittelstand sowie von Enterprise Datacentern vorangetrieben. Ein besonderer Fokus lag in der Ausgestaltung von energieeffizienten L&ouml;sungen sowie der Einhaltung von aktuellen Standards, insbesondere der DIN EN 50600.\u003C\u002Fp>\n\u003Cp>Herr Strate war als Keynote-Speaker und Referent auf Fachveranstaltungen pr&auml;sent. Er &uuml;bte in enger Zusammenarbeit mit der DCE academy die Referentent&auml;tigkeit zu verschiedenen fachlichen Themen im Rechenzentrumsbereich aus.\u003C\u002Fp>\n\u003Cp>IBM Site and Facilities Services plante und realisierte als General&uuml;bernehmer schl&uuml;sselfertig sichere, hochverf&uuml;gbare, modulare, skalierbare, innovative und energieeffiziente Rechenzentren.\u003C\u002Fp>\n\u003Cp>Seit 2021 ist Herr Strate freiberuflich als Referent \u002F Dozent f&uuml;r die DCE academy t&auml;tig.&nbsp;\u003C\u002Fp>","https:\u002F\u002Fwww.linkedin.com\u002Fin\u002Fjuergen-strate\u002F","juergen.strate@dce-academy.com","Jürgen","Strate","48a241a8-9ea1-44ff-94dc-ea0fc76ab74b",{"kind":109,"slug":124},{"id":134,"status":7,"sort":38,"slug":135,"position":136,"cv":137,"linkedin":11,"phone":11,"signature_email":138,"first_name":139,"last_name":140,"avatar":141,"profile":142},"e3ce035f-250a-427e-9219-ed262d272263","victor-dadson","Business Development Manager","","victor.dadson@dce-academy.com","Victor","Dadson","9985058e-5846-4308-b2ac-66b60b9f2428",{"kind":109,"slug":135},{"id":144,"status":7,"sort":28,"slug":145,"position":146,"cv":137,"linkedin":147,"phone":11,"signature_email":148,"first_name":149,"last_name":150,"avatar":151,"profile":152},"398a42f3-c77f-4db0-b75a-d82a47ed9c3f","kelly-grispen","Sales","https:\u002F\u002Fwww.linkedin.com\u002Fin\u002Fkelly-g-990229230\u002F","kelly.grispen@dce-academy.com","Kelly","Grispen","fc4d5b35-af11-48d3-b8c2-5b162ce02fe0",{"kind":109,"slug":145},{"meta":154},{"total":155,"page":6,"pageSize":6},0,{"number":157,"slug":158,"slugEn":159,"group":160,"designation":161,"title":162,"edition":163,"vde":164,"iso":165,"checkedAt":166,"revisionOngoing":19,"intro":167,"about":178,"requirements":187,"misconceptions":230,"practice":245,"status":273,"faq":292,"seminars":326,"sources":331,"terms":337,"glossary":360,"prev":366,"next":372},"4-2","teil-4-2-pue","part-4-2-pue","kpi","EN 50600-4-2","Power Usage Effectiveness (PUE)","2019-08","VDE 0801-600-4-2","ISO\u002FIEC 30134-2:2016; Ed. 2 seit 2026-01","2026-09-17",{"segments":168,"ref":11},[169,172,176],{"type":170,"html":171},"html","EN 50600-4-2 defines ",{"type":173,"text":174,"anchor":175},"term","power usage effectiveness","pue",{"type":170,"html":177}," (PUE): the ratio of a data center’s total energy consumption to the energy consumption of its IT over one year. Since 2023, the German Energy Efficiency Act (EnEfG) has referred to this very standard, and since 2024 the European reporting obligation has as well.",{"segments":179,"ref":186},[180,182,184],{"type":170,"html":181},"Part 4-2 establishes the PUE as a key performance indicator, defines three measurement categories, governs measurement, calculation, and reporting, and gives guidance on interpretation. It is a tool for energy management: identifying improvements in operation and assessing design and processes over time. The PUE relates only to the infrastructure within the data center ",{"type":173,"text":183,"anchor":183},"boundary",{"type":170,"html":185},". It does not cover the efficiency of the IT itself, its productivity, renewable energy, or the reuse of waste heat","(EN 50600-4-2:2019, Clauses 1 and 4).",[188,195,202,209,216,223],{"title":189,"text":190},"The PUE is an annual value and always greater than 1.",{"segments":191,"ref":194},[192],{"type":170,"html":193},"It is the ratio of the total data center energy consumption to the IT equipment energy consumption, both over the same year in kilowatt-hours. Total consumption includes all forms of energy at the boundary, including natural gas or purchased chilled water.","Clauses 3.1.3, 3.1.7 and 5.1.",{"title":196,"text":197},"The meter marks the boundary.",{"segments":198,"ref":201},[199],{"type":170,"html":200},"Total consumption is measured at the energy supplier’s point of connection. IT energy includes storage, processing, and transmission equipment; total consumption additionally includes power supply, cooling, lighting, and security systems.","Clauses 5.1 and 6.2.1, Annex A.",{"title":203,"text":204},"Three categories by where the IT energy is measured.",{"segments":205,"ref":208},[206],{"type":170,"html":207},"Category 1 measures at the UPS output, category 2 at the output of the power distribution units, category 3 at the input of the IT equipment. The closer to the load, the more accurate the value; non-IT loads must be kept out of the IT energy.","Clauses 6.2.1 to 6.2.5.",{"title":210,"text":211},"Without category and period, a PUE value is meaningless.",{"segments":212,"ref":215},[213],{"type":170,"html":214},"A report states the data center with its boundary, the value, the category as a subscript, and the end date of the measurement period. Values covering less than one year must be labeled as interim PUE.","Clause 7.1.1, Annex C.2.",{"title":217,"text":218},"Derivatives supplement the PUE but do not replace it.",{"segments":219,"ref":222},[220],{"type":170,"html":221},"Partial PUE assesses a subsystem such as power distribution or cooling, interim PUE a shorter period, design PUE a planned data center. Each derivative must be labeled and documented with boundary, period, and assumptions.","Annex C.",{"title":224,"text":225},"The PUE shows the development, not the ranking.",{"segments":226,"ref":229},[227],{"type":170,"html":228},"The indicator is meant to show how a facility develops over time and the effect of design and operational decisions. Values of different data centers should not be compared directly, because climate, utilization, Availability Class, and business purpose shape the result.","Annexes A and D.",[231,238],{"statement":232,"text":233},"“Our PUE is 1.3 today.”",{"segments":234,"ref":237},[235],{"type":170,"html":236},"A snapshot value is not a PUE in the sense of the standard; the indicator is an annual value from continuous measurement. Shorter periods and real-time values must be labeled as interim PUE. In projects, we often see a winter value passed on as the annual indicator","(Clauses 3.1.3, 3.1.7, Annex C.2).",{"statement":239,"text":240},"“We used less energy, so our PUE has improved.”",{"segments":241,"ref":244},[242],{"type":170,"html":243},"If the IT load falls more than the total consumption, for example after a server migration, the PUE rises even though fewer kilowatt-hours were consumed; fixed consumption and part-load operation of the cooling weigh more heavily in the ratio. From seminar practice: an auditor will then ask not about the kilowatt-hours but about the causes of the deterioration","(Clause 4; seminar exercise).",{"heading":246,"items":247,"closing":268},"Where Part 4-2 applies in a project",[248,255,261],{"label":249,"text":250},"Measurement concept",{"segments":251,"ref":254},[252],{"type":170,"html":253},"Meters are placed so that category and boundary are unambiguous; for the European database on data centers, Commission Delegated Regulation (EU) 2024\u002F1364 requires the IT energy according to category 1 at the UPS","(Annex II).",{"label":256,"text":257},"Reporting obligation",{"segments":258,"ref":11},[259],{"type":170,"html":260},"Operators with an IT power demand of 500 kW or more report annually by 15 May to the European database (Articles 1 and 3 of the Regulation); the EnEfG requires the indicator annually by 31 March for the German energy efficiency register for data centers (Energieeffizienzregister) and sets limits from July 2027 (Sections 11 and 13, Annex 3).",{"label":262,"text":263},"Energy management",{"segments":264,"ref":267},[265],{"type":170,"html":266},"Partial PUE values per subsystem show the effect of individual measures","(Annex C.3).",[269],{"segments":270,"ref":11},[271],{"type":170,"html":272},"This protects you from reporting a value that fails the audit because of the measurement category. It saves you from having to explain why the PUE got worse even though consumption went down.",[274,280,286],{"label":275,"text":276,"draft":11,"draftDate":11},"Current edition",{"segments":277,"ref":11},[278],{"type":170,"html":279},"DIN EN 50600-4-2:2019-08, German edition of EN 50600-4-2:2016 with corrigendum AC:2017 and amendment A1:2019. The EnEfG and the Regulation refer to this edition.",{"label":281,"text":282,"draft":11,"draftDate":11},"International",{"segments":283,"ref":11},[284],{"type":170,"html":285},"ISO\u002FIEC 30134-2:2016; since January 2026, the second edition ISO\u002FIEC 30134-2:2026 has been available, and the European version has not yet been aligned with it.",{"label":287,"text":288,"draft":11,"draftDate":11},"Revision",{"segments":289,"ref":11},[290],{"type":170,"html":291},"Alignment with the second ISO edition is to be expected; as of our status in September 2026, no date is known. Committee CLC\u002FTC 215, nationally DKE\u002FGK 719.",[293,300,307,314,320],{"question":294,"answer":295},"What is the PUE according to EN 50600-4-2?",{"segments":296,"ref":299},[297],{"type":170,"html":298},"The ratio of a data center’s annual total energy consumption to the annual energy consumption of its IT equipment, both in kilowatt-hours. The value is always greater than 1","(Clauses 3.1.3, 5.1).",{"question":301,"answer":302},"What PUE categories are there?",{"segments":303,"ref":306},[304],{"type":170,"html":305},"Three, by where the IT energy is measured: category 1 at the UPS output, category 2 at the output of the power distribution units, category 3 at the input of the IT equipment","(Clause 6.2).",{"question":308,"answer":309},"Can I compare my data center’s PUE with others?",{"segments":310,"ref":313},[311],{"type":170,"html":312},"The standard advises against it. The PUE serves to track one data center over time; comparisons between sites are only meaningful with context on climate, utilization, availability, and measurement category","(Clause 4, Annex D).",{"question":315,"answer":316},"What PUE does the EnEfG require?",{"segments":317,"ref":11},[318],{"type":170,"html":319},"For data centers that started operation before 1 July 2026, a maximum of 1.5 from 1 July 2027 and a maximum of 1.3 from 1 July 2030, each as an annual average; for data centers commissioned later, a maximum of 1.2. The basis of calculation is DIN EN 50600-4-2 (Section 11 and Annex 3 EnEfG, as of 13 November 2023).",{"question":321,"answer":322},"Who has to report the PUE to the European database?",{"segments":323,"ref":11},[324],{"type":170,"html":325},"Operators of data centers with an IT power demand of 500 kW or more, annually by 15 May for the previous year, under Commission Delegated Regulation (EU) 2024\u002F1364 (Articles 1 and 3).",[327,329],{"seminarId":56,"benefit":328},"The indicators of the 4-x series with calculation, measurement concept, and the link to the EnEfG and the European reporting obligation; this saves you a report that is based on the wrong measuring point.",{"seminarId":73,"benefit":330},"Legally sound implementation of the EnEfG with case exercises on the PUE, including the case in which lower consumption produces a worse indicator.",[332,333,334,335,336],"DIN EN 50600-4-2:2019-08 (German edition of EN 50600-4-2:2016 with AC:2017 and A1:2019), European foreword, national foreword of the German edition, Clauses 1, 3.1, 4, 5.1, 6.2.1 to 6.2.5, 7.1, Annex A, Annex C, Annex D, national Annex NC of the German edition","Commission Delegated Regulation (EU) 2024\u002F1364 of 14 March 2024, Articles 1 and 3, Annex II","German Energy Efficiency Act (Gesetz zur Steigerung der Energieeffizienz in Deutschland, EnEfG) of 13 November 2023, Sections 11, 13, Annex 3","ISO\u002FIEC 30134-2:2016; ISO\u002FIEC 30134-2:2026 (catalog entry retrieved 2026-09-17)","DCE academy seminar practice: Data Center – General Principles (session April 2026), Data Center Sustainability &amp; Efficiency (session November 2025), Energy Management according to DIN EN ISO 50001 (materials June 2026)",[338,339,341,343,344,346,348,350,352,354,356,358],{"label":162,"anchor":175},{"label":340,"anchor":11},"total data center energy consumption",{"label":342,"anchor":11},"IT equipment energy consumption",{"label":183,"anchor":183},{"label":345,"anchor":11},"PUE category 1 to 3",{"label":347,"anchor":11},"partial PUE (pPUE)",{"label":349,"anchor":11},"interim PUE (iPUE)",{"label":351,"anchor":11},"design PUE (dPUE)",{"label":353,"anchor":11},"power usage effectiveness under the EnEfG (Energieverbrauchseffektivität)",{"label":355,"anchor":11},"German energy efficiency register for data centers (Energieeffizienzregister)",{"label":357,"anchor":11},"European database on data centers",{"label":359,"anchor":11},"power distribution unit (PDU)",{"pue":361,"boundary":363},{"term":162,"short":362},"Ratio of the total energy consumption of a data center to the energy consumption of its IT equipment.",{"term":364,"short":365},"Boundary and point of connection","The system boundary at which the energy and water flows of a data center are measured for the KPIs of the 4-x series.",{"number":367,"slug":368,"slugEn":369,"group":160,"designation":370,"title":371},"4-1","teil-4-1-leistungskennzahlen-ueberblick","part-4-1-kpi-overview","EN 50600-4-1","Overview of and general 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