ISO/IEC 22237-3:2021

Information technology — Data centre facilities and infrastructures — Part 3: Power distribution

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 ISO/IEC 22237‑1. 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 document and are covered by other standards and regulations. However, information given in this document can be of assistance in meeting these standards and regulations. Conformance of data centres to the present document is covered in Clause 4. The use of the data centre stored energy or alternate sources to be used by the grid is not in the scope of this document and is for consideration in future specifications.

Technologie de l’information — Installation et infrastructures de centres de traitement de données — Partie 3: Distribution de puissance

General Information

• Status: Published
• Publication Date: 04-Oct-2021
• ICS: 35.020 - Information technology (IT) in general
• Technical Committee: ISO/IEC JTC 1/SC 39 - Sustainability, IT and data centres
• Drafting Committee: ISO/IEC JTC 1/SC 39/WG 3 - Sustainable facilities and infrastructures
• Current Stage: 6060 - International Standard published
• Start Date: 05-Oct-2021
• Due Date: 18-May-2022
• Completion Date: 05-Oct-2021

Relations

• Revises: ISO/IEC TS 22237-3:2018 - Information technology — Data centre facilities and infrastructures — Part 3: Power distribution
• Effective Date: 23-Apr-2020

Standards Content (Sample)

INTERNATIONAL ISO/IEC
STANDARD 22237-3
First edition
2021-10
Information technology — Data centre
facilities and infrastructures —
Part 3:
Power distribution
Technologie de l’information — Installation et infrastructures de
centres de traitement de données —
Partie 3: Distribution de puissance
Reference number
ISO/IEC 22237-3:2021(E)
© ISO/IEC 2021

---------------------- Page: 1 ----------------------
ISO/IEC 22237-3:2021(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO/IEC 2021
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
  © ISO/IEC 2021 – All rights reserved

---------------------- Page: 2 ----------------------
ISO/IEC 22237-3:2021(E)
Contents Page
Foreword .v
Introduction . vi
1 Scope . 1
2 Normative references . 1
3 Terms, definitions and abbreviated terms . 2
3.1 Terms and definitions . 2
3.2 Abbreviated terms . 6
3.3 Symbols . 6
4 Conformance . 7
5 Power supply and distribution within data centres . 7
5.1 Functional elements. 7
5.1.1 General . 7
5.1.2 Power supply to the data centre . 8
5.1.3 Power distribution within the data centre . 9
5.2 Dimensioning of power distribution systems . 10
6 Availability .11
6.1 General requirements . 11
6.2 Power supply . 11
6.2.1 Capacity planning . 11
6.2
...

FINAL
INTERNATIONAL ISO/IEC
DRAFT
STANDARD FDIS
22237-3
ISO/IEC JTC 1/SC 39
Information technology — Data centre
Secretariat: ANSI
facilities and infrastructures —
Voting begins on:
2021-07-05
Part 3:
Voting terminates on:
Power distribution
2021-08-30
Technologie de l’information — Installation et infrastructures de
centres de traitement de données —
Partie 3: Distribution de puissance
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 SUPPOR TING
DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
Reference number
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/IEC FDIS 22237-3:2021(E)
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN-
DARDS TO WHICH REFERENCE MAY BE MADE IN
©
NATIONAL REGULATIONS. ISO/IEC 2021

---------------------- Page: 1 ----------------------
ISO/IEC FDIS 22237-3:2021(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO/IEC 2021
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii © ISO/IEC 2021 – All rights reserved

---------------------- Page: 2 ----------------------
ISO/IEC FDIS 22237-3:2021(E)

Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms, definitions and abbreviated terms . 2
3.1 Terms and definitions . 2
3.2 Abbreviated terms . 6
3.3 Symbols . 6
4 Conformance . 7
5 Power supply and distribution within data centres . 7
5.1 Functional elements . 7
5.1.1 General. 7
5.1.2 Power supply to the data centre . 8
5.1.3 Power distribution within the data centre . 9
5.2 Dimensioning of power distribution systems .10
6 Availability .
...