CLC/TS 50600-2-10:2021

Information technology - Data centre facilities and infrastructures - Part 2-10: Earthquake risk and impact analysis

This document provides requirements and recommendations for the type of risk assessment to be employed concerning seismic activity and earthquakes in relation to data centres. In addition, it describes design concepts that can be employed as mitigation actions within the construction, and other elements of design, of data centres.

Informationstechnik - Einrichtungen und Infrastrukturen von Rechenzentren - Teil 2-10: Analyse des Risikos und der Auswirkung von Erdbeben

Technologie de l'information - Installation et infrastructures de centres de traitement de données - Partie 2-10: Analyse des risques et des impacts liés aux tremblements de terre

Le présent document fournit des exigences et des recommandations relatives au type d'appréciation du risque à appliquer concernant l’activité sismique et les tremblements de terre par rapport aux centres de traitement de données. Par ailleurs, il décrit les notions de conception qui peuvent être appliquées comme actions d’atténuation dans le domaine de la construction, ainsi que les autres éléments de conception des centres de traitement de données.

Informacijska tehnologija - Naprave in infrastruktura podatkovnih centrov - 2-10. del: Potresno tveganje in ocena vpliva

General Information

• Status: Published
• Publication Date: 11-Mar-2021
• ICS: 35.020 - Information technology (IT) in general
• ICS: 35.110 - Networking
• ICS: 35.160 - Microprocessor systems
• Technical Committee: CLC/TC 215 - Electrotechnical aspects of telecommunication equipment
• Drafting Committee: CLC/TC 215 - Electrotechnical aspects of telecommunication equipment
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 12-Mar-2021
• Due Date: 09-Apr-2022
• Completion Date: 12-Mar-2021
• Mandate: M/462 - Standardisation mandate addressed to CEN, CENELEC and ETSI in the field of ICT to enable efficient energy use in fixed and mobile information and communication networks
• Ref Project: SIST-TS CLC/TS 50600-2-10:2021 - Information technology - Data centre facilities and infrastructures - Part 2-10: Earthquake risk and impact analysis

Standards Content (Sample)

SLOVENSKI STANDARD
01-maj-2021
Informacijska tehnologija - Naprave in infrastruktura podatkovnih centrov - 2-10.
del: Potresno tveganje in ocena vpliva
Information technology - Data centre facilities and infrastructures - Part 2-10: Earthquake
risk and impact analysis
Informationstechnik - Einrichtungen und Infrastrukturen von Rechenzentren - Teil 2-10:
Analyse des Risikos und der Auswirkung von Erdbeben
Technologies de linformation - Installation et infrastructures des centres de traitement de
données - Partie 2-10:
Ta slovenski standard je istoveten z: CLC/TS 50600-2-10:2021
ICS:
35.110 Omreževanje Networking
91.120.25 Zaščita pred potresi in Seismic and vibration
vibracijami protection
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

TECHNICAL SPECIFICATION CLC/TS 50600-2-10

SPÉCIFICATION TECHNIQUE
TECHNISCHE SPEZIFIKATION
March 2021
ICS 35.110; 35.020; 35.160
English Version
Information technology - Data centre facilities and infrastructures
- Part 2-10: Earthquake risk and impact analysis
Technologie de l'information - Installation et infrastructures Informationstechnik - Einrichtungen und Infrastrukturen von
de centres de traitement de données - Partie 2-10 : Risque Rechenzentren - Teil 2-10: Analyse des Risikos und der
sismique et analyse d'impact Auswirkung von Erdbeben
This Technical Specification was approved by CENELEC on 2021-01-25.

CENELEC members are required to announce the existence of this TS in the same way as for an EN and to make the TS available promptly
at national level in an appropriate form. It is permissible to keep conflicting national standards in force.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2021 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. CLC/TS 50600-2-10:2021 E

Contents Page
European foreword . 4
Introduction . 5
1 Scope . 8
2 Normative references . 8
3 Terms, definitions and abbreviations . 8
3.1 Terms and definitions . 8
3.2 Abbreviations . 9
4 Availability Class of EN 50600-1 . 9
5 Overview of risk associated with seismic activity . 10
5.1 Direct risk of seismic motion . 10
5.1.1 Ground motion . 10
5.1.2 Long-period ground motion . 10
5.1.3 Ground liquefaction . 10
5.2 Indirect risk initiated by seismic motion . 10
5.2.1 Fire and toxic or damaging effluent . 10
5.2.2 Explosion . 10
5.2.3 Flooding. 10
5.2.4 Utilities . 10
5.2.5 Access . 11
5.2.6 Transport . 11
5.2.7 Security systems . 12
6 Seismic activity risk assessment . 12
6.1 General . 12
6.2 Ground motion . 12
6.3 Ground stability . 13
6.4 Evaluation by Probable Maximum Loss (PML). 14
6.4.1 General . 14
6.4.2 Advantages and disadvantages . 15
7 Seismic activity risk mitigation . 15
7.1 Direct risk of seismic motion . 15
7.1.1 General . 15
7.1.2 Structural mitigation using isolation base techniques . 15
7.1.3 Localized mitigation . 18
7.1.4 Roofs and ceiling supports . 19
7.2 Indirect risk initiated by seismic motion . 20
7.2.1 Fire and toxic or damaging effluent . 20
7.2.2 Explosion . 21
7.2.3 Flooding. 21
7.2.4 Utilities . 21
7.2.5 Access . 22
7.2.6 Transport . 22
8 Disaster planning and recovery . 22
Bibliography . 23
Tables
Table 1 — PGA and Seismic Intensity Scales . 12
Table 2 — PGA and typical damage . 12
Table 3 — P value and risk of liquefaction . 14
L
Table 4 — Example of evaluation criteria of PML . 14
Figures
Figure 1 — Schematic relationship between the EN 50600 series of documents . 6
Figure 2 — The effect of soil liquefaction . 14
Figure 3 — Structure with an isolation base . 16
Figure 4 — Oil damper . 16
Figure 5 — Lead damper . 16
Figure 6 — Steel damper . 17
Figure 7 — Laminated rubber isolator . 17
Figure 8 — Laminated rubber isolator with lead plug . 17
Figure 9 — Sliding bearing . 18
Figure 10 — Rack isolator . 18
Figure 11 — Equipment suspended from roof/ceiling slab . 19
Figure 12 — Example of duct or cable management systems suspended from
roof/ceiling slab . 20
Figure 13 — Anti-drop measures of lightning equipment for suspended ceiling systems . 20
European foreword
This document (CLC/TS 50600-2-10:2021) has been prepared by CLC/TC 215 “Electrotechnical
aspects of telecommunication equipment”.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC 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 Trade Association.
This document is based on the text of ISO/IEC TR 22237-30:— .
Regarding the structure of the EN 50600 series, see the Introduction.

Under preparation. Stage at time of publication: ISO/IEC DTS 22237 30:2020.
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 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 enterprises within those customer premises.
Data centres usually 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 point of view (reduction of environmental
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 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 construction, power distribution, environmental control and physical security as well
as the operation of the data centre. Effective management and operational information is crucial for
monitoring achievement of the defined needs and objectives.
This series specifies requirements and recommendations to support the various parties 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 designers and builders, system and installation designers;
3) facility and infrastructure integrators, suppliers of equipment;
4) installers, maintainers.
At the time of publication of this document, the EN 50600 series will comprise the following standards
and documents:
EN 50600-1, Information 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
CLC/TS 50600-2-10, Information technology — Data centre facilities and infrastructures — Part 2-10:
Earthquake risk and impact analysis
EN 50600-2-2, Information technology — Data centre facilities and infrastructures — Part 2-2: Power
supply and distribution
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
EN 50600-2-5, 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 infrastructures — 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:
Renewable Energy Factor
EN 50600-4-6, Information technology — Data centre facilities and infrastructures — Part 4-6: Energy
Reuse Factor
EN 50600-4-7, Information technology — Data centre facilities and infrastructures — Part 4-7: Cooling
Efficiency Ratio
CLC/TR 50600-99-1, Information technology — Data centre facilities and infrastructures — Part 99-1:
Recommended practices for energy management
CLC/TR 50600-99-2, Information technology — Data centre facilities and infrastructures — Part 99-2:
Recommended practices for environmental sustainability
CLC/TR 50600-99-3, Information technology — Data centre facilities and infrastructures — Part 99-3:
Guidance to the application of EN 50600 series.
The inter-relationship of the documents within the EN 50600 series is shown in Figure 1.

Figure 1 — Schematic relationship between the EN 50600 series of documents
EN 50600-2-X documents 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 specify 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.
CLC/TS 50600-5-X documents provide a maturity model addressing the facilities, infrastructures and
the information and communication technology equipment of the data centre.
Determination of the risk and scale of seismic activity should be included as part of the overall risk
assessment approach according to EN 50600-1.
In addition, EN 50600-2-1 requires a geographical risk analysis which includes seismic activity and
requires mitigation actions to be undertaken as necessary but does not identify the specific actions to
be applied. EN 50600-2-5 addresses external environmental events but does not explicitly list
earthquakes or seismic activity within that group of events (other than general vibration) or indicate the
specific measures required.
As a result, this document, CLC/TS 50600-2-10, provides requirements and recommendations for the
type of risk assessment to be employed concerning seismic activity and earthquakes in relation to data
centres.
1 Scope
This document provides requirements and recommendations for the type of risk assessment to be
employed concerning seismic activity and earthquakes in relation to data centres. In addition, it
describes design concepts that can be employed as mitigation actions within the construction, and
other elements of design, of data centres.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 50600 (series), Information technology — Data centre facilities and infrastructures
3 Terms, definitions and abbreviations
3.1 Terms and definitions
For the purposes of this document, the terms and definitions in the EN 50600 series and the following
apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at https://www.iso.org/obp
3.1.1
aseismic performance
resistance to seismic activity of a specified scale
3.1.2
base isolation building
structure that absorbs the energy of earthquakes by installing a base isolation layer composed of
isolators and dampers between the ground and the building
3.1.3
information and communication technology equipment
ICT equipment
information technology (IT) and network telecommunications (NT) equipment providing data storage,
processing and transport services
Note 1 to entry: Representing the “critical load” of the data centre.
[SOURCE: CLC/TR 50600-99-1:2020, 3.1.16]
3.1.4
passive damper
structure that absorbs the energy of earthquakes with dampers, etc., by installing energy absorption
members such as dampers in main structures
3.1.5
Peak Ground Acceleration
PGA
maximum ground acceleration that occurred during earthquake shaking at a location
Note 1 to entry: PGA is equal to the amplitude of the largest absolute acceleration recorded on an
accelerogram at a site during a particular earthquake.
Note 2 to entry: Earthquake shaking generally occurs in all three directions. Therefore, PGA is often split into
the horizontal and vertical components. Horizontal PGAs are generally larger than those in the vertical direction
but this is not always true, especially close to large earthquakes.
Note 3 to entry: The design basis earthquake ground motion (DBEGM) is often defined in terms of PGA.
3.1.6
Probable Maximum Loss
PML
ratio (expressed as a percentage) of the restoration cost to the re-procurement cost taking into account
the degree of earthquake risks, the stability of ground, the earthquake resistance of the building, and
the earthquake resistance of the facilities
3.1.7
re-procurement cost
total cost required to reconstruct the assets damaged at the time of evaluation
3.1.8
restoration cost
cost required to recover the damage caused by seismic activity (earthquake)
3.2 Abbreviations
For the purposes of this document, the following abbreviations apply in addition to those of the
EN 50600 series.
ffs for further study
PGA Peak Ground Acceleration
PML Probable Maximum Loss
SIS Seismic Intensity Scale
4 Availability Class of EN 50600-1
EN 50600-1 defines four Classes of overall availability of the set of facilities and infrastructures of the
data centre, described as Class 1 to 4, which are intended to provide increasing levels of availability.
The desired Availability Class is supported by design solutions for
a) power supply and distribution systems (EN 50600-2-2),
b) environmental control systems (EN 50600-2-3),
c) telecommunications cabling infrastructure (EN 50600-2-4).
If the data centre is to be located in a region of seismic activity then mitigation actions are necessary in
order to maintain the desired Availability Class (but not further define it).
The intention of these actions is to provide the data centre of a desired Availability Class with aseismic
performance.
5 Overview of risk associated with seismic activity
5.1 Direct risk of seismic motion
5.1.1 Short-period ground motion
Ground motion denotes the positional change of an area of ground relative to objects or other areas of
ground nearby in both horizontal and vertical directions.
Short-period (high frequency) ground motion can cause the structural damage generally associated
with earthquakes.
A number of mitigation techniques can be employed including rack isolators within computer room
spaces and the more application of base isolation techniques for structure accommodating the facilities
and infrastructures of the data centre.
5.1.2 Long-period ground motion
Long-period (low frequency) ground motion is typically motion with a period typically between 1 and 5 s.
This type of ground motion can occur at significant distances from an earthquake epicentre.
Long-period ground motion can cause the structural damage generally associated with earthquakes
and mitigation techniques should be employed to support the facilities of the data centre by using base
isolation techniques
In addition, long-period ground motion and can have unexpected consequences which are not directly
constructional. For example, fuel storage tanks subject to long-period ground motion are at risk of fire
due to “sloshing” of the fuel contained within them.
5.1.3 Ground liquefaction
Ground liquefaction resulting from ground motion results in the significant reduction in the load bearing
capacity of the ground which could result in uneven settlement or unequal settlement could occur of
buildings comprising the facilities of the data centre.
5.2 Indirect risk initiated by seismic motion
5.2.1 Fire and toxic or damaging effluent
Even if a data centre has employed mitigation measures and is unaffected structurally during an
earthquake, the data centre can be affected by fire in the local areas. These fires could produce
effluent which is toxic or damaging to the equipment within the data centre.
5.2.2 Explosion
Even if a data centre has employed mitigation measures and is unaffected structurally during an
earthquake, the data centre can be affected by explosions of other facilities in the local area.
5.2.3 Flooding
Even if a data centre has employed mitigation measures and is unaffected structurally during an
earthquake, the data centre can be affected by flooding from damaged water supplies or from surges
i
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