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BS ISO/IEC 22237-3:2021

BS ISO/IEC 22237-3:2021

$189.07

Information technology. Data centre facilities and infrastructures – Power distribution

Published By Publication Date Number of Pages
BSI 2021 46
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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:

  1. power supplies to data centres;

  2. power distribution systems to all equipment within data centres;

  3. telecommunications infrastructure bonding;

  4. lightning protection;

  5. 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.

This standard is withdrawn as it is in conflict with EN standards

PDF Catalog

PDF Pages PDF Title
2 National foreword
7 Foreword
8 Introduction
11 1 Scope
2 Normative references
12 3 Terms, definitions and abbreviated terms
3.1 Terms and definitions
16 3.2 Abbreviated terms
3.3 Symbols
17 4 Conformance
5 Power supply and distribution within data centres
5.1 Functional elements
5.1.1 General
18 5.1.2 Power supply to the data centre
19 5.1.3 Power distribution within the data centre
20 5.2 Dimensioning of power distribution systems
21 6 Availability
6.1 General requirements
6.2 Power supply
6.2.1 Capacity planning
23 6.2.2 Availability of the utility supply
24 6.2.3 Power quality
25 6.2.4 Load presented to the utility supply
6.2.5 Equipment
27 6.2.6 Availability Class design options
33 6.3 Power distribution
6.3.1 Capacity planning
34 6.3.2 Power quality
35 6.3.3 Equipment
6.3.4 Availability Class design options
39 6.4 Incorporation of low voltage direct current distribution
6.5 Additional considerations
6.5.1 Residual current measurement
6.5.2 Lightning and surge protection
40 6.5.3 Segregation of power distribution cabling and information technology cabling
6.6 Emergency power off (EPO)
6.6.1 Requirements
6.6.2 Recommendations
7 Physical security
7.1 General
7.2 Access
7.2.1 Power supply
7.2.2 Power distribution
7.2.3 Attachment of unauthorized end-equipment
41 7.3 Internal environmental events
7.3.1 Power supply
7.3.2 Power distribution
7.4 External environmental events
8 Energy efficiency enablement and power distribution
8.1 General
42 8.2 Granularity Level 1
8.2.1 Requirements
8.2.2 Recommendations
43 8.3 Granularity Level 2
8.3.1 Requirements
8.3.2 Recommendations
44 8.4 Granularity Level 3
8.4.1 Requirements
8.4.2 Recommendations
8.5 Cabling infrastructure to support energy efficiency enablement
45 Bibliography

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BS ISO/IEC 22237-3:2021
$189.07