ISO/IEC TS 22237-3:2018
Information technology — Data centre facilities and infrastructures — Part 3: Power distribution
ISO/IEC TS 22237-3:2018 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 TS 22237‑1.
ISO/IEC TS 22237-3:2018 specifies requirements and recommendations for the following:
a) power supplies to data centres;
b) power distribution systems within data centres;
c) facilities for both normal and emergency lighting;
d) equipotential bonding and earthing;
e) lightning protection;
f) devices for the measurement of the power consumption 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 may be of assistance in meeting these standards and regulations.
Conformance of data centres to the present document is covered in Clause 4.
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions and abbreviated terms
3.1 Terms and definitions
3.2 Abbreviated terms
4 Conformance
5 Power supply and distribution within data centres
5.1 General
5.2 Dimensioning of power distribution systems
6 Availability
6.1 General requirements
6.2 Power supply
6.2.1 Capacity planning
6.2.2 Availability of the utility supply
6.2.3 Power quality
6.2.4 Load presented to the utility supply
6.2.5 Equipment
6.2.6 Availability Class design options
6.3 Power distribution
6.3.1 Capacity planning
6.3.2 Power quality
6.3.3 Equipment
6.3.4 Availability Class design options
6.4 Incorporation of LVDC distribution
6.5 Additional considerations
6.5.1 Lightning and surge protection
6.5.2 Segregation of power distribution cabling and information technology cabling
6.6 Emergency power off
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 unauthorised end-equipment
7.2.4 Cabling infrastructure to support access control
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
8.2 Granularity Level 1
8.2.1 Requirements
8.2.2 Recommendations
8.3 Granularity Level 2
8.3.1 Requirements
8.3.2 Recommendations
8.4 Granularity Level 3
8.4.1 Requirements
8.4.2 Recommendations
8.5 Cabling infrastructure to support energy efficiency enablement
Annex A (informative) Example implementations of power distribution
Bibliography
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions and abbreviated terms
3.1 Terms and definitions
3.2 Abbreviated terms
4 Conformance
5 Power supply and distribution within data centres
5.1 General
5.2 Dimensioning of power distribution systems
6 Availability
6.1 General requirements
6.2 Power supply
6.2.1 Capacity planning
6.2.2 Availability of the utility supply
6.2.3 Power quality
6.2.4 Load presented to the utility supply
6.2.5 Equipment
6.2.6 Availability Class design options
6.3 Power distribution
6.3.1 Capacity planning
6.3.2 Power quality
6.3.3 Equipment
6.3.4 Availability Class design options
6.4 Incorporation of LVDC distribution
6.5 Additional considerations
6.5.1 Lightning and surge protection
6.5.2 Segregation of power distribution cabling and information technology cabling
6.6 Emergency power off
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 unauthorised end-equipment
7.2.4 Cabling infrastructure to support access control
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
8.2 Granularity Level 1
8.2.1 Requirements
8.2.2 Recommendations
8.3 Granularity Level 2
8.3.1 Requirements
8.3.2 Recommendations
8.4 Granularity Level 3
8.4.1 Requirements
8.4.2 Recommendations
8.5 Cabling infrastructure to support energy efficiency enablement
Annex A (informative) Example implementations of power distribution
Bibliography