IEC 61010-2-012:2019

Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 2-012: Particular requirements for climatic and environmental testing and other temperature conditioning equipment

IEC 61010-2-012:2019 specifies safety requirements for electrical equipment and its accessories within the categories a) through c), wherever it is intended to be used, whenever that equipment incorporates one or more of the following characteristics:
– A refrigerating system that is acted on or impacted by an integral heating function such that the combined heating and refrigerating system generates additional and/or more severe hazards than those for the two systems if treated separately.
– The materials being treated in the intended application introduce significant heat into the refrigerating system, so that the refrigerating system in the application yields additional and/or more severe hazards than those for the refrigerating system if operated at the maximum rated ambient temperature alone.
– An irradiation function for the materials being treated presenting additional hazards.
– A function to expose the materials being treated to excessive humidity, carbon dioxide, salt mist, or other substances which can result in additional hazards.
– A function of mechanical movement presenting additional hazards.
– Provision for an operator to walk in to the operating area to load or unload the materials being treated.
It has the status of a group safety publication in accordance with IEC Guide 104.
This second edition cancels and replaces the first edition published in 2016. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) alignment with changes introduced by Amendment 1 of IEC 61010-1:2010;
b) changes related to the use of small capitals for defined terms only;
c) clarifications for cooling tests in 4.4.2.10;
d) requirements for overtemperature protection in 10.101, including deletion of the second part of the sentence in item b), and the deletion of item c);
e) changes pertaining to the accurate employment of terms "temperature", "operating temperature", "working temperature", "application temperature", "room temperature" and "ambient temperature" in 3.5.104, 3.5.105, 4.3.1, 4.3.2, 5.4.2, 8.2.1, 8.2.2, 11.7.2.101.2, 11.7.2.101.3, 13.2.102, 14.102, 15.101, 15.102, 15.103, Introduction and many other locations. For the purpose of clarification, the definition of 3.5.114, controlled temperature, is added.

Exigences de sécurité pour appareils électriques de mesurage, de régulation et de laboratoire - Partie 2-012: Exigences particulières pour appareils d'essais climatiques et d'environnement, et autres appareils de conditionnement de température

L'IEC 61010-2-012:2019 spécifie les exigences de sécurité pour les appareils électriques et leurs accessoires relevant des catégories a) à c) quelle que soit l'utilisation à laquelle ils sont destinés, lorsque ces appareils comprennent une ou plusieurs des caractéristiques suivantes:
– Un système frigorifique affecté ou influencé par une fonction de chauffage intégrée de sorte que le système frigorifique et de chauffage combiné engendre des dangers supplémentaires et/ou plus graves que ceux pour les deux systèmes s'ils sont traités séparément.
– Les matières traitées dans l'application prévue génèrent une chaleur importante dans le système frigorifique, de sorte que le système frigorifique dans l'application engendre des dangers supplémentaires et/ou plus graves que ceux pour le système frigorifique dans le cas où il est utilisé seul à la température ambiante assignée maximale.
– Une fonction d'exposition aux rayonnements pour les matières traitées qui présentent des dangers supplémentaires.
– Une fonction dédiée à l'exposition des matières traitées à une humidité excessive, au dioxyde de carbone, au brouillard salin ou à d'autres substances qui peuvent engendrer des dangers supplémentaires.
– Une fonction de mouvement mécanique qui présente des dangers supplémentaires.
– Un dispositif qui permet le déplacement de l'opérateur vers la zone de manœuvre afin de charger ou décharger les matières traitées.
Elle a le statut d'une publication groupée de sécurité conformément au Guide IEC 104.
Cette deuxième édition annule et remplace la première édition parue en 2016. Cette édition constitue une révision technique.
Cette édition inclut les modifications techniques majeures suivantes par rapport à la l'édition précédente:
a) alignement sur les modifications introduites par l'Amendement 1 de l'IEC 61010-1:2010;
b) modifications relatives à l'utilisation de petites capitales uniquement pour les termes définis;
c) clarifications concernant les essais de refroidissement au 4.4.2.10;
d) exigences relatives à la protection contre les surtempératures au 10.101, comprenant la suppression de la seconde partie de b) et c);
e) modifications relatives à l'emploi exact des termes "température", "température de fonctionnement", "température de service", "température d'application", "température ambiante" aux 3.5.104, 3.5.105, 4.3.1, 4.3.2, 5.4.2, 8.2.1, 8.2.2, 11.7.2.101.2, 11.7.2.101.3, 13.2.102, 14.102, 15.101, 15.102, 15.103, à l'Introduction et à d'autres nombreux endroits. Pour des besoins de clarification, la définition du 3.5.114, température régulée est ajoutée.

General Information

• Status: Published
• Publication Date: 11-Apr-2019
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 19.080 - Electrical and electronic testing
• Technical Committee: TC 66 - Safety of measuring, control and laboratory equipment
• Drafting Committee: MT 17 - TC 66/MT 17
• Current Stage: PPUB - Publication issued
• Start Date: 26-Apr-2019
• Completion Date: 12-Apr-2019

Relations

• Revises: IEC 61010-2-012:2016 - Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 2-012: Particular requirements for climatic and environmental testing and other temperature conditioning equipment
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 61010-2-012 ®
Edition 2.0 2019-04
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
GROUP SAFETY PUBLICATION
Safety requirements for electrical equipment for measurement, control, and
laboratory use –
Part 2-012: Particular requirements for climatic and environmental testing and
other temperature conditioning equipment

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
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

IEC Central Office Tel.: [phone]
3, rue de Varembé [e-mail]
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Switzerland
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.

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IEC 61010-2-012 ®
Edition 2.0 2019-04
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
GROUP SAFETY PUBLICATION
Safety requirements for electrical equipment for measurement, control, and

laboratory use –
Part 2-012: Particular requirements for climatic and environmental testing and

other temperature conditioning equipment

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 19.080 ISBN 978-2-8322-6838-4

– 2 – IEC 61010-2-012:2019 RLV © IEC 2019
CONTENTS
FOREWORD . 4
INTRODUCTION . 7
1 Scope and object . 10
2 Normative references . 11
3 Terms and definitions . 12
4 Tests . 17
5 Marking and documentation . 24
6 Protection against electric shock . 33
7 Protection against mechanical HAZARDS . 35
8 Resistance to mechanical stresses . 37
9 Protection against the spread of fire . 37
10 Equipment temperature limits and resistance to heat . 39
11 Protection against HAZARDS from fluids and solid foreign objects . 43
12 Protection against radiation, including laser sources, and against sonic and
ultrasonic pressure . 58
13 Protection against liberated gases and substances, explosion and implosion . 60
14 Components and subassemblies . 62
15 Protection by interlocks . 63
16 HAZARDS resulting from application . 65
17 RISK assessment . 66
Annexes . 67
Annex K (normative) Insulation requirements not covered by 6.7 . 68
Annex L (informative) Index of defined terms . 69
Annex AA (informative) Useful symbols . 71
Annex BB (informative) Protection for of people who are inside WALK-IN EQUIPMENT . 74
Annex CC (informative) Safety requirements for components and piping . 76
Annex DD (informative) Equipment containing FLAMMABLE REFRIGERANTS – Information
and marking requirements. 81
Annex EE (normative) Non-sparking "n" electrical device . 84
Bibliography . 85

Figure 101 – Schema of a REFRIGERATING SYSTEM incorporating a CONDENSER . 8
Figure 102 – Flow chart illustrating the selection process . 9
Figure 103 – Details of scratching TOOL tip . 53

Table 1 – Symbols . 24
Table 101 – Time-temperature conditions . 30
Table 102 – Maximum temperatures for MOTOR-COMPRESSORS . 40
Table 103 – Minimum temperature for the determination of SATURATED-VAPOUR
PRESSURE of the REFRIGERANT . 48
Table 104 – REFRIGERANT flammability parameters . 56
Table 105 – Lamp or lamp systems considered photobiologically safe .

Table 106 – Lamp or lamp systems considered photobiologically safe under certain
conditions .
Table AA.1 – Useful symbols . 71
Table CC.1 – Parameters of pressure vessels according to EN 14276-1 . 76
Table CC.2 – Parameters of piping according to EN 14276-2 . 78
Table CC.3 – Components and piping requirements . 79
Table CC.4 – Minimum wall thickness for copper and steel tubing . 80

– 4 – IEC 61010-2-012:2019 RLV © IEC 2019
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SAFETY REQUIREMENTS FOR ELECTRICAL EQUIPMENT
FOR MEASUREMENT, CONTROL, AND LABORATORY USE –

Part 2-012: Particular requirements for climatic and environmental
testing and other temperature conditioning 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 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.
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9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
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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.

International Standard IEC 61010-2-012 has been prepared by IEC technical committee 66:
Safety of measuring, control and laboratory equipment.
It has the status of a group safety publication in accordance with IEC Guide 104.
This second edition cancels and replaces the first edition published in 2016. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) alignment with changes introduced by Amendment 1 of IEC 61010-1:2010;
b) changes related to the use of small capitals for defined terms only;
c) clarifications for cooling tests in 4.4.2.10;
d) requirements for overtemperature protection in 10.101, including deletion of the second
part of the sentence in item b), and the deletion of item c);
e) changes pertaining to the accurate employment of terms "temperature", "operating
temperature", "working temperature", "application temperature", "room temperature" and
"ambient temperature" in 3.5.104, 3.5.105, 4.3.1, 4.3.2, 5.4.2, 8.2.1, 8.2.2, 11.7.2.101.2,
11.7.2.101.3, 13.2.102, 14.102, 15.101, 15.102, 15.103, Introduction and many other
locations. For the purpose of clarification, the definition of 3.5.114, CONTROLLED
, is added.
TEMPERATURE
The text of this International Standard is based on the following documents:
FDIS Report on voting
66/687/FDIS 66/688/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.
...

IEC 61010-2-012 ®
Edition 2.0 2019-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
GROUP SAFETY PUBLICATION
PUBLICATION GROUPÉE DE SÉCURITÉ
Safety requirements for electrical equipment for measurement, control, and
laboratory use –
Part 2-012: Particular requirements for climatic and environmental testing and
other temperature conditioning equipment

Règles de sécurité pour appareils électriques de mesurage, de régulation et de
laboratoire –
Partie 2-012: Exigences particulières pour les appareils d'essais climatiques et
d'environnement, et autres appareils de conditionnement de température

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
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

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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

(IEV) online.
IEC Just Published - webstore.iec.ch/justpublished
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 61010-2-012 ®
Edition 2.0 2019-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
GROUP SAFETY PUBLICATION
PUBLICATION GROUPÉE DE SÉCURITÉ

Safety requirements for electrical equipment for measurement, control, and

laboratory use –
Part 2-012: Particular requirements for climatic and environmental testing and

other temperature conditioning equipment

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

laboratoire –
Partie 2-012: Exigences particulières pour les appareils d'essais climatiques et

d'environnement, et autres appareils de conditionnement de température

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 19.080 ISBN 978-2-8322-6713-4

– 2 – IEC 61010-2-012:2019 © IEC 2019
CONTENTS
FOREWORD . 4
INTRODUCTION . 7
1 Scope and object . 10
2 Normative references . 11
3 Terms and definitions . 11
4 Tests . 17
5 Marking and documentation . 23
6 Protection against electric shock . 32
7 Protection against mechanical HAZARDS . 34
8 Resistance to mechanical stresses . 36
9 Protection against the spread of fire . 37
10 Equipment temperature limits and resistance to heat . 38
11 Protection against HAZARDS from fluids and solid foreign objects . 42
12 Protection against radiation, including laser sources, and against sonic and
ultrasonic pressure . 57
13 Protection against liberated gases and substances, explosion and implosion . 58
14 Components and subassemblies . 60
15 Protection by interlocks . 62
16 HAZARDS resulting from application . 64
17 RISK assessment . 65
Annexes . 66
Annex K (normative) Insulation requirements not covered by 6.7 . 67
Annex L (informative) Index of defined terms . 68
Annex AA (informative) Useful symbols . 70
Annex BB (informative) Protection of people who are inside WALK-IN EQUIPMENT . 73
Annex CC (informative) Safety requirements for components and piping . 75
Annex DD (informative) Equipment containing FLAMMABLE REFRIGERANTS – Information
and marking requirements. 80
Annex EE (normative) Non-sparking "n" electrical device . 83
Bibliography . 84

Figure 101 – Schema of a REFRIGERATING SYSTEM incorporating a CONDENSER . 8
Figure 102 – Flow chart illustrating the selection process . 9
Figure 103 – Details of scratching TOOL tip . 52

Table 1 – Symbols . 24
Table 101 – Time-temperature conditions . 30
Table 102 – Maximum temperatures for MOTOR-COMPRESSORS . 40
Table 103 – Minimum temperature for the determination of SATURATED-VAPOUR
PRESSURE of the REFRIGERANT . 47
Table 104 – REFRIGERANT flammability parameters . 56
Table AA.1 – Useful symbols . 70

Table CC.1 – Parameters of pressure vessels according to EN 14276-1 . 76
Table CC.2 – Parameters of piping according to EN 14276-2 . 77
Table CC.3 – Components and piping requirements . 78
Table CC.4 – Minimum wall thickness for copper and steel tubing . 79

– 4 – IEC 61010-2-012:2019 © IEC 2019
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SAFETY REQUIREMENTS FOR ELECTRICAL EQUIPMENT
FOR MEASUREMENT, CONTROL, AND LABORATORY USE –

Part 2-012: Particular requirements for climatic and environmental
testing and other temperature conditioning 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 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, employee
...