IEC 61010-2-091:2019

Safety requirements for electrical equipment for measurement, control and laboratory use - Part 2-091: Particular requirements for cabinet X-ray systems

IEC 61010-2-091:2019 specifies particular safety requirements for cabinet X-ray systems, which fall under any of categories a), b) or c) below.
a) Electrical test and measurement equipment
This is equipment which by electromagnetic means tests, measures, indicates or records one or more electrical or physical quantities, also non-measuring equipment such as signal generators, measurement standards, power supplies for laboratory use, transducers, transmitters, etc.
NOTE 1 This includes bench-top power supplies intended to aid a testing or measuring operation on another piece of equipment. Power supplies intended to power equipment are within the scope of IEC 61558 (see 1.1.2 h)).
This standard also applies to test equipment integrated into manufacturing processes and intended for testing manufactured devices.
NOTE 2 Manufacturing test equipment is likely to be installed adjacent to and interconnected with industrial machinery in this application.
b) Electrical industrial process-control equipment
This is equipment which controls one or more output quantities to specific values, with each value determined by manual setting, by local or remote programming, or by one or more input variables.
c) Electrical laboratory equipment
This is equipment which measures, indicates, monitors, inspects or analyses materials, or is used to prepare materials, and includes in vitro diagnostic (IVD) equipment. This equipment may also be used in areas other than laboratories; examples include selftest IVD equipment to be used in the home and inspection equipment to be used to check people or material during transportation. This second edition cancels and replaces the first edition published in 2012. It constitutes a technical revision. This edition includes the following significant changes from the first edition, as well as numerous other changes:
- The scope of the document has been clarified and limited to equipment up to 500 kV.
- Additional marking requirements for X-ray generating assemblies have been added. (5.1)
- Requirements for high-voltage cables used in the X-ray assembly have been added. (6.5)
- Insulation requirements have been added. (6.7)
- Temperature requirements for beam-limiting devices have been added. (10.3)
- Clarification has been provided on and , and test methods. (12)
- Requirements for have been modified, taking into account functional safety standards. (15)
- Requirements for reasonably foreseeable misuse have been clarified. (16)
- Risk assessment has been made mandatory for specific aspects. (17)

Règles de sécurité pour appareils électriques de mesurage, de régulation et de laboratoire - Partie 2-091: Exigences particulières pour les équipements à rayons X montés en armoire

L'IEC 61010-2-091:2019 spécifie les exigences de sécurité particulières pour les équipements à rayons X montés en armoire, qui relèvent de n'importe laquelle des catégories de 1.1.1 a), b) ou c).
a) Appareils électriques d'essai et de mesurage
Il s'agit d'appareils qui, par des moyens d'ordre électromagnétique, mesurent, indiquent ou enregistrent une ou plusieurs grandeurs électriques ou physiques, ainsi que des appareils non-mesureurs tels que générateurs de signaux, étalons de mesure, alimentations de puissance de laboratoire, transducteurs, transmetteurs, etc.
NOTE 1 Cela comprend les alimentations de puissance de table prévues pour permettre des opérations de test ou de mesure sur une autre partie d'appareil. Les alimentations de puissance destinées à alimenter les appareils de puissance sont dans le champ d'application de l’IEC 61558 (voir 1.1.2 h)).
Cette norme s'applique aussi aux équipements de test intégrés dans les lignes de fabrication et prévus pour tester les appareils en cours de fabrication.
NOTE 2 De tels équipements de tests peuvent être attenants et connectés à des machines industrielles dans cette application.
b) Appareils électriques de contrôle de procédés industriels
Il s'agit d'appareils qui règlent une ou plusieurs grandeurs de sortie selon des valeurs spécifiques, chaque valeur étant déterminée par réglage manuel, par programmation locale ou à distance, ou par une ou plusieurs variables d'entrée.
c) Appareils électriques de laboratoire
Il s'agit d'appareils qui mesurent, indiquent, surveillent, inspectent ou analysent des matériaux, ou qui servent à préparer des matériaux, y compris les appareils de diagnostic in vitro (DIV). Ces appareils peuvent également être utilisés ailleurs que dans des laboratoires; par exemple les appareils DIV d’autotest personnel utilisés à domicile et les appareils d’inspection utilisés pour contrôler les personnes ou les objets pendant le transport. Cette deuxième édition annule et remplace la première édition parue en 2012. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à la première édition, ainsi que de nombreuses autres modifications.
- Le domaine d'application du document a été clarifié et limité aux appareils inférieurs à 500 kV.
- Des exigences supplémentaires de marquage pour les ensembles générant des rayons X ont été ajoutées. (5.1)
- Des exigences relatives aux câbles à haute tension utilisés dans l'ensemble radiogène ont été ajoutées. (6.5)
- Des exigences relatives à l'isolation ont été ajoutées. (6.7)
- Des exigences relatives à la température pour les ont été ajoutées. (10.3)
- Une clarification a été ajoutée concernant les et , et des méthodes d'essai. (12)
- Les exigences relatives aux ont été modifiées, prenant ainsi en compte les normes de sécurité fonctionnelle. (15)
- Les exigences relatives au mauvais usage raisonnablement prévisible ont été clarifiées. (16)
- L'appréciation du risque a été rendue obligatoire pour des aspects spécifiques. (17)

General Information

• Status: Published
• Publication Date: 14-Feb-2019
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 19.080 - Electrical and electronic testing
• ICS: 71.040.10 - Chemical laboratories. Laboratory equipment
• Technical Committee: TC 66 - Safety of measuring, control and laboratory equipment
• Drafting Committee: MT 14 - TC 66/MT 14
• Current Stage: PPUB - Publication issued
• Start Date: 01-Mar-2019
• Completion Date: 15-Feb-2019

Relations

• Revises: IEC 61010-2-091:2012 - Safety requirements for electrical equipment for measurement, control and laboratory use - Part 2-091: Particular requirements for cabinet X-ray systems
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 61010-2-091 ®
Edition 2.0 2019-02
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Safety requirements for electrical equipment for measurement, control, and
laboratory use –
Part 2-091: Particular requirements for cabinet X-ray systems

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
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copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
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About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
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IEC 61010-2-091 ®
Edition 2.0 2019-02
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Safety requirements for electrical equipment for measurement, control, and

laboratory use –
Part 2-091: Particular requirements for cabinet X-ray systems

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 19.080; 71.040.10 ISBN 978-2-8322-6586-4

– 2 – IEC 61010-2-091:2019 RLV  IEC 2019
CONTENTS
FOREWORD . 3
INTRODUCTION . 2
1 Scope and object . 7
2 Normative references . 8
3 Terms and definitions . 8
4 Tests . 9
5 Marking and documentation . 10
6 Protection against electric shock . 13
7 Protection against mechanical HAZARDS . 16
8 Resistance to mechanical stresses . 16
9 Protection against the spread of fire . 16
10 Equipment temperature limits and resistance to heat . 16
11 Protection against HAZARDS from fluids and solid foreign objects . 17
12 Protection against radiation, including laser sources, and against sonic and
ultrasonic pressure . 17
13 Protection against liberated gases and substances, explosion and implosion . 20
14 Components and subassemblies . 20
15 Protection by INTERLOCKS . 21
16 HAZARDS resulting from application . 22
17 RISK assessment . 24
Annexes . 25
Annex L (informative) Index of defined terms . 26
Annex AA (normative) Standard phantom for PARTIALLY PROTECTED EQUIPMENT . 27
Annex BB (informative) Dose limit recommendation for occupational radiation . 28
Bibliography . 29

Figure AA.1 – Phantom for measurement of PARTIALLY PROTECTED EQUIPMENT . 27

Table 101 – Durations of high voltage strength test . 15
Table BB.1 – Dose limits . 28

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SAFETY REQUIREMENTS FOR ELECTRICAL EQUIPMENT
FOR MEASUREMENT, CONTROL, AND LABORATORY USE –

Part 2-091: Particular requirements for cabinet X-ray systems

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 itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
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.
This redline version of the official IEC Standard allows the user to identify the changes
made to the previous edition. A vertical bar appears in the margin wherever a change has
been made. Additions are in green text, deletions are in strikethrough red text.

– 4 – IEC 61010-2-091:2019 RLV  IEC 2019
International Standard IEC 61010-2-091 has been prepared by IEC technical committee 66:
Safety of measuring, control and laboratory equipment.
This second edition cancels and replaces the first edition published in 2012. It constitutes a
technical revision.
This edition includes the following significant changes from the first edition, as well as numerous
other changes:
• The scope of the document has been clarified and limited to equipment up to 500 kV.
• Additional marking requirements for X-ray generating assemblies have been added. (5.1)
• Requirements for high-voltage cables used in the X-ray assembly have been added. (6.5)
• Insulation requirements have been added. (6.7)
• Temperature requirements for beam-limiting devices have been added. (10.3)
• Clarification has been provided on PROTECTED EQUIPMENT and PARTIALLY PROTECTED
EQUIPMENT, and test methods. (12)
• Requirements for INTERLOCKS have been modified, taking into account functional safety
standards. (15)
• Requirements for reasonably foreseeable misuse have been clarified. (16)
• Risk assessment has been made mandatory for specific aspects. (17)
The text of this International Standard is based on the following documents:
FDIS Report on voting
66/684/FDIS 66/686A/RVD
Full information on the voting for the approval of this International Standard can be found in the
report on voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
This document is intended to be used in conjunction with IEC 61010-1. It was established on the
basis of the third edition (2010) of IEC 61010-1, including its Amendment 1 (2016), hereinafter
referred to as Part 1.
This Part 2-091 supplements or modifies the corresponding clauses in IEC 61010-1 so as to
convert that publication into the IEC standard: Particular requirements for cabinet X-ray
systems.
Clauses of Part 1 that are fully applicable are indicated by the statement "This clause of Part 1
is applicable." Where this Part 2-091 identifies a particular subclause and states "addition",
"modification", "replacement", or "deletion", the text of that particular subclause Part 1 is
adapted accordingly. Where a particular subclause of Part 1 is not mentioned in this Part 2-091,
that subclause applies as far as is reasonable.
In this standard:
a) the following print types are used:
– requirements: in roman type;
– NOTES: in small roman type;
– conformity and tests: in italic type;
– terms used throughout this standard which have been defined in Clause 3: SMALL ROMAN
.
CAPITALS
b) subclauses, figures, and tables which are additional to those in Part 1 are numbered starting
from 101. Additional annexes are lettered starting from AA and additional list items are
lettered from aa).
A list of all parts of the IEC 61010 series, published under the general title Safety requirements
for electrical equipment for measurement, control, and laboratory use, can be found on the IEC
website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
IMPORTANT – The “colour inside” logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct understanding
of its contents. Users should therefore print this publication using a colour printer.

– 6 – IEC 61010-2-091:2019 RLV  IEC 2019
INTRODUCTION
IEC 61010-1 specifies the safety requirements that are generally applicable to all equipment
within its scope. For certain types of equipment, the requirements of IEC 61010-1 and its
amendments will be supplemented or modified by the special require
...

IEC 61010-2-091 ®
Edition 2.0 2019-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Safety requirements for electrical equipment for measurement, control, and
laboratory use –
Part 2-091: Particular requirements for cabinet X-ray systems

Règles de sécurité pour appareils électriques de mesurage, de régulation et de
laboratoire –
Partie 2-091: Exigences particulières pour les équipements à rayons X montés
en armoire
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
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About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.

IEC publications search - webstore.iec.ch/advsearchform Electropedia - www.electropedia.org
The advanced search enables to find IEC publications by a The world's leading online dictionary on electrotechnology,
variety of criteria (reference number, text, technical containing more than 22 000 terminological entries in English
committee,…). It also gives information on projects, replaced and French, with equivalent terms in 16 additional languages.
and withdrawn publications. Also known as the International Electrotechnical Vocabulary

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Stay up to date on all new IEC publications. Just Published IEC Glossary - std.iec.ch/glossary
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once a month by email. French extracted from the Terms and Definitions clause of
IEC publications issued since 2002. Some entries have been
IEC Customer Service Centre - webstore.iec.ch/csc collected from earlier publications of IEC TC 37, 77, 86 and
If you wish to give us your feedback on this publication or CISPR.

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IEC 61010-2-091 ®
Edition 2.0 2019-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Safety requirements for electrical equipment for measurement, control, and

laboratory use –
Part 2-091: Particular requirements for cabinet X-ray systems

Règles de sécurité pour appareils électriques de mesurage, de régulation et de

laboratoire –
Partie 2-091: Exigences particulières pour les équipements à rayons X montés

en armoire
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 19.080; 71.040.10 ISBN 978-2-8322-6518-5

– 2 – IEC 61010-2-091:2019  IEC 2019
CONTENTS
FOREWORD . 3
INTRODUCTION . 6
1 Scope and object . 7
2 Normative references . 8
3 Terms and definitions . 8
4 Tests . 9
5 Marking and documentation . 10
6 Protection against electric shock . 13
7 Protection against mechanical HAZARDS . 15
8 Resistance to mechanical stresses . 16
9 Protection against the spread of fire . 16
10 Equipment temperature limits and resistance to heat . 16
11 Protection against HAZARDS from fluids and solid foreign objects . 16
12 Protection against radiation, including laser sources, and against sonic and
ultrasonic pressure . 16
13 Protection against liberated gases and substances, explosion and implosion . 19
14 Components and subassemblies . 19
15 Protection by INTERLOCKS . 20
16 HAZARDS resulting from application . 22
17 RISK assessment . 22
Annexes . 23
Annex L (informative) Index of defined terms . 24
Annex AA (normative) Standard phantom for PARTIALLY PROTECTED EQUIPMENT . 25
Annex BB (informative) Dose limit recommendation for occupational radiation . 26
Bibliography . 27

Figure AA.1 – Phantom for measurement of PARTIALLY PROTECTED EQUIPMENT . 25

Table 101 – Durations of high voltage strength test . 14
Table BB.1 – Dose limits . 26

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SAFETY REQUIREMENTS FOR ELECTRICAL EQUIPMENT
FOR MEASUREMENT, CONTROL, AND LABORATORY USE –

Part 2-091: Particular requirements for cabinet X-ray systems

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 itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
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 61010-2-091 has been prepared by IEC technical committee 66:
Safety of measuring, control and laboratory equipment.
This second edition cancels and replaces the first edition published in 2012. It constitutes a
technical revision.
This edition includes the following significant changes from the first edition, as well as numerous
other changes:
• The scope of the document has been clarified and limited to equipment up to 500 kV.
• Additional marking requirements for X-ray generating assemblies have been added. (5.1)
• Requirements for high-voltage cables used in the X-ray assembly have been added. (6.5)
• Insulation requirements have been added. (6.7)
• Temperature requirements for beam-limiting devices have been added. (10.3)

– 4 – IEC 61010-2-091:2019  IEC 2019
• Clarification has been provided on PROTECTED EQUIPMENT and PARTIALLY PROTECTED
EQUIPMENT, and test methods. (12)
• Requirements for INTERLOCKS have been modified, taking into account functional safety
standards. (15)
• Requirements for reasonably foreseeable misuse have been clarified. (16)
• Risk assessment has been made mandatory for specific aspects. (17)
The text of this International Standard is based on the following documents:
FDIS Report on voting
66/684/FDIS 66/686A/RVD
Full information on the voting for the approval of this International Standard can be found in the
report on voting indicated in the above table.
This document has been drafted in acc
...