EN 60950-23:2006

Information technology equipment - Safety - Part 23: Large data storage equipment

Specifies requirements for information technology equipment (ITE) with self contained data storage systems that contain hazardous moving parts. These data storage systems are typically large enough to permit a person to enter completely, however, the systems also include similar large equipment permitting complete limb or head access to the area containing hazardous moving parts. These requirements are additional to the relevant requirements in EN 60950-1.

Einrichtungen der Informationstechnik - Sicherheit - Teil 23: Große Einrichtungen zur Datenspeicherung

Matériels de traitement de l'information - Sécurité - Partie 23: Matériels de grande taille pour le stockage des données

Spécifie des exigences pour les matériels de traitement de l'information (information technology equipment - ITE) équipés de systèmes de stockage des données autonomes qui contiennent des parties mobiles dangereuses. Ces systèmes de stockage de données sont généralement d'une taille suffisante pour qu'une personne puisse y pénétrer complètement; toutefois, ces systèmes englobent également les matériels analogues de grande taille permettant de rentrer complètement un membre ou la tête dans la zone qui contient des parties mobiles dangereuses. Ces exigences viennent compléter celles de la EN 60950-1.

Oprema za informacijsko tehnologijo - Varnost - 23. del: Oprema za hranjenje velike količine podatkov (IEC 60950-23:2005) (vsebuje popravek AC:2008)

General Information

• Status: Published
• Publication Date: 13-Apr-2006
• Withdrawal Date: 30-Nov-2010
• ICS: 29.020 - Electrical engineering in general
• ICS: 35.020 - Information technology (IT) in general
• Technical Committee: CLC/TC 108X - Safety of electronic equipment within the fields of Audio/Video, Information Technology and Communication Technology
• Drafting Committee: IEC/TC 108 - IEC_TC_108
• Parallel Committee: IEC/TC 108 - IEC_TC_108
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 14-Apr-2006
• Completion Date: 14-Apr-2006
• Directive: 1999/5/EC - Directive 1999/5/EC of the European Parliament and of the Council of 9 March 1999 on radio equipment and telecommunications terminal equipment and the mutual recognition of their conformity
• Directive: 2006/95/EC - Directive 2006/95/EC of the European Parliament and of the Council of 12 December 2006 on the harmonisation of the laws of Member States relating to electrical equipment designed for use within certain voltage limits (codified version)
• Directive: 2014/35/EU - Directive 2014/35/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of electrical equipment designed for use within certain voltage limits
• Directive: 2014/53/EU - Directive 2014/53/EU of The European Parliament and of the Council of 16 April 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of radio equipment and repealing Directive 1999/5/EC
• Directive: 73/23/EEC - Electrical equipment designed for use within certain voltage limits
• Mandate: M/536 - [C(2015)536] Standardisation request as regards radio equipment in support of Directive 2014/53/EU
• Ref Project: SIST EN 60950-23:2007 - Information technology equipment - Safety -- Part 23: Large data storage equipment

Relations

• Replaced By: EN IEC 62368-1:2020 - Audio/video, information and communication technology equipment - Part 1: Safety requirements
• Effective Date: 10-Mar-2020

Overview

EN 60950-23:2006 (CLC) - also published as IEC 60950-23:2005 - is a safety standard for large data storage equipment used in information technology environments. It specifies additional safety requirements for information technology equipment (ITE) that contains hazardous moving parts and is large enough that a person may fully enter the equipment or insert limbs/head into areas with moving parts. These requirements are supplementary to the general safety rules in EN/IEC 60950-1 and are intended for installation in RESTRICTED ACCESS LOCATIONS such as data centres.

Key topics and technical requirements

• Scope and applicability
  • Covers self-contained automated mass storage and retrieval systems that handle media (e.g., tape cartridges, optical disks) and similar large storage equipment.
  • Excludes non-self-contained industrial robotic equipment (see IEC 60204, ISO 10218).
• Work cell protection
  • Defines the concept of a WORK CELL: a space within equipment where a person may enter and mechanical hazards exist.
  • Treats work cells as OPERATOR ACCESS AREAS for hazard protection.
• Access control methods
  • Method 1: No key/tool required - interlocks must prevent access while hazardous parts are powered; power must not be restored until doors are closed and latched.
  • Method 2: Key/tool controlled access - key/tool used to gain and control access and may be required to be carried by the person in the work cell.
• Interlocks and stopping times
  • Opening an interlocked access door must automatically remove drive power and fully stop hazardous moving parts within 3 seconds without relying on software control.
  • Where full entry is possible, an automatically activated mechanical interlock is required.
• Emergency stop, interlock override, endurance and abnormal operation
  • The standard includes requirements for emergency stop systems, interlock override provisions, endurance testing, and handling of abnormal operation conditions.
• Design safeguards
  • Encourages use of interlocks, barriers, awareness signals, procedures and training; accounts for possible fire detection/extinguishing in work cells.
• Size criterion
  • Typical cartridge motion envelope referenced as 0.75 m or more, indicating large-scale storage mechanisms.

Applications and users

• Practical for designers, manufacturers, safety engineers and compliance teams of large automated storage systems in:
  • Data centres and enterprise archival facilities
  • Automated tape libraries, robotic jukeboxes and high-density media stores
  • Systems integrators and facility managers responsible for installation in restricted access locations
• Useful for risk assessment, mechanical and electrical safety design, and conformity documentation.

Related standards

• EN/IEC 60950-1 - General ITE safety requirements (primary reference)
• IEC 60947-5-5, IEC 60073, IEC 61058-1 - referenced for switches, indicators and emergency stop device requirements
• IEC 60204-1 / IEC 60204-11, ISO 10218 - relevant for industrial robotic safety (not covered by this part)

Keywords: EN 60950-23, large data storage equipment, information technology equipment safety, work cell, interlocks, emergency stop, restricted access location, hazardous moving parts.

Standards Content (Sample)

SLOVENSKI STANDARD
01-januar-2007
2SUHPD]DLQIRUPDFLMVNRWHKQRORJLMR9DUQRVWGHO2SUHPD]DKUDQMHQMH
YHOLNHNROLþLQHSRGDWNRY,(&YVHEXMHSRSUDYHN$&
Information technology equipment - Safety -- Part 23: Large data storage equipment
Einrichtungen der Informationstechnik - Sicherheit -- Teil 23: Große Einrichtungen zur
Datenspeicherung
Matériels de traitement de l'information - Sécurité -- Partie 23: Matériels de grande taille
pour le stockage des données
Ta slovenski standard je istoveten z: EN 60950-23:2006
ICS:
35.220.99 Druge naprave za Other data storage devices
shranjevanje podatkov
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 60950-23
NORME EUROPÉENNE
April 2006
EUROPÄISCHE NORM
ICS 35.020; 29.020
Incorporates corrigendum October 2008

English version
Information technology equipment -
Safety
Part 23: Large data storage equipment
(IEC 60950-23:2005)
Matériels de traitement de l'information - Einrichtungen der Informationstechnik -
Sécurité Sicherheit
Partie 23: Matériels de grande taille Teil 23: Große Einrichtungen
pour le stockage des données zur Datenspeicherung
(CEI 60950-23:2005) (IEC 60950-23:2005)

This European Standard was approved by CENELEC on 2005-12-01. CENELEC members are bound to comply
with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard
the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and notified
to the Central Secretariat has the same status as the official versions.

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

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels

© 2006 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60950-23:2006 E
Foreword
The text of document 108/144/FDIS, future edition 1 of IEC 60950-23, prepared by IEC TC 108, Safety of
electronic equipment within the field of audio/video, information technology and communication
technology, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as
EN 60950-23 on 2005-12-01.
The following dates were fixed:

− latest date by which the EN has to be implemented

at national level by publication of an identical
(dop) 2006-12-01
national standard or by endorsement

− latest date by which the national standards conflicting
(dow) 2010-12-01
with the EN have to be withdrawn
This Part 23 of EN 60950 is intended to be used with EN 60950-1. The subclauses of EN 60950-1 apply
as is reasonable. Where safety aspects are similar to those of Part 1, the relevant Part 1 clause or
subclause is shown for reference in parentheses after the clause or subclause title in Part 23. Where a
requirement in Part 23 refers to a requirement or criterion of Part 1, a specific reference to EN 60950-1 is
made.
EN 60950 consists of the following parts, under the general title Information technology equipment –
Safety:
Part 1: General requirements;
Part 21: Remote power feeding;
Part 22: Equipment installed outdoors;
Part 23: Large data storage equipment.
In this standard, the following print types are used:
– requirements proper and normative annexes: roman type;
– compliance statements and test specifications: italic type;
– notes in the text and in tables: smaller roman type;
– terms that are defined in Clause 2 and in EN 60950-1: SMALL CAPITALS.
Annex ZA has been added by CENELEC.
The contents of the corrigendum of October 2008 have been included in this copy.
__________
- 3 - EN 60950-23:2006
Endorsement notice
The text of the International Standard IEC 60950-23:2005 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards indicated:
IEC 60204-1 NOTE Harmonized as EN 60204-1:1997 (not modified).
IEC 60204-11 NOTE Harmonized as EN 60204-11:2000 (not modified).
ISO 10218 NOTE Harmonized as EN 775:1992 (modified).
__________
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendment) applies.
NOTE  When an International Publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
Publication Year Title EN/HD Year
IEC 60073 2002 Basic and safety principles for man-machine EN 60073 2002
interface, marking and identification - Coding
principles for indicators and actuators
IEC 60947-5-5 1997 Low-voltage switchgear and controlgear EN 60947-5-5 1997
Part 5-5: Control circuit devices and switching
elements - Electrical emergency stop device
with mechanical latching function
IEC 60950-1 2005 Information technology equipment - Safety EN 60950-1 2006
(mod) Part 1: General requirements
1) 2)
IEC 61058-1 - Switches for appliances EN 61058-1 2002
(mod) Part 1: General requirements

———————
1)
Undated reference.
2)
Valid edition at date of issue.

NORME CEI
INTERNATIONALE
IEC
60950-23
INTERNATIONAL
Première édition
STANDARD
First edition
2005-09
Matériels de traitement de l'information –
Sécurité –
Partie 23:
Matériels de grande taille pour
le stockage des données
Information technology equipment –
Safety –
Part 23:
Large data storage equipment
 IEC 2005 Droits de reproduction réservés  Copyright - all rights reserved
Aucune partie de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized in any
utilisée sous quelque forme que ce soit et par aucun procédé, form or by any means, electronic or mechanical, including
électronique ou mécanique, y compris la photocopie et les photocopying and microfilm, without permission in writing from
microfilms, sans l'accord écrit de l'éditeur. the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: [phone] Telefax: [phone] E-mail: [e-mail] Web: www.iec.ch
CODE PRIX
L
PRICE CODE
Commission Electrotechnique Internationale
International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
Pour prix, voir catalogue en vigueur
For price, see current catalogue

60950-23  IEC:2005 – 3 –
CONTENTS
FOREWORD.5

1 Scope.9
2 Normative references .9
3 Terms and definitions .11
4 Protection of persons in the work cell .11
5 Interlock override.13
5.1 General .13
5.2 Visual indicator.13
6 Emergency stop system.13
7 Endurance tests .17
8 Abnormal operation .19

60950-23  IEC:2005 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INFORMATION TECHNOLOGY EQUIPMENT –
SAFETY –
Part 23: Large data storage equipment

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 60950-23 has been prepared by IEC technical committee 108:
Safety of electronic equipment within the field of audio/video, information technology and
communication technology.
The text of this standard is based on the following documents:
FDIS Report on voting
108/144/FDIS 108/150/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.

60950-23  IEC:2005 – 7 –
This standard is to be used in conjunction with IEC 60950-1.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
IEC 60950 consists of the following parts, under the general title Information technology
equipment – Safety:
Part 1: General requirements
Part 21: Remote power feeding
Part 22: Equipment installed outdoors
Part 23: Large data storage equipment
In this standard, the following print types are used:
– requirements proper and normative annexes: roman type;
– compliance statements and test specifications: italic type;
– notes in the text and in tables: smaller roman type;
– terms that are defined on Clause 2 and in IEC 60950-1: SMALL CAPITALS.

The committee has decided that the contents of this publication will remain unchanged until
the maintenance result date indicated on the IEC web site under "http://webstore.iec.ch" in
the data related to the specific publication. At this date, the publication will be
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.
60950-23  IEC:2005 – 9 –
INFORMATION TECHNOLOGY EQUIPMENT –
SAFETY –
Part 23: Large data storage equipment
...