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 is available as IEC 61010-2-012:2019 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.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.

Sicherheitsbestimmungen für elektrische Mess-, Steuer-, Regel- und Laborgeräte - Teil 2-012: Besondere Anforderungen an Klima- und Umwelttestgeräte und andere Temperatur-Konditionierungsgeräte

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

IEC 61010-2-012:2019 est disponible sous forme de IEC 61010-2-012:2019 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.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.

Varnostne zahteve za električno opremo za meritve, nadzor in laboratorijsko uporabo - 2-012. del: Posebne zahteve za opremo za klimatska in okoljska preskušanja ter drugo opremo za uravnavanje temperature

General Information

Status
Published
Public Enquiry End Date
13-Jun-2018
Publication Date
19-Jun-2022
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
05-May-2022
Due Date
10-Jul-2022
Completion Date
20-Jun-2022

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SLOVENSKI STANDARD
SIST EN IEC 61010-2-012:2022
01-julij-2022
Nadomešča:
SIST EN 61010-2-012:2017
Varnostne zahteve za električno opremo za meritve, nadzor in laboratorijsko
uporabo - 2-012. del: Posebne zahteve za opremo za klimatska in okoljska
preskušanja ter drugo opremo za uravnavanje temperature

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

Sicherheitsbestimmungen für elektrische Mess-, Steuer-, Regel- und Laborgeräte - Teil 2

-012: Besondere Anforderungen an Klima- und Umwelttestgeräte und andere
Temperatur-Konditionierungsgeräte
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
Ta slovenski standard je istoveten z: EN IEC 61010-2-012:2022
ICS:
19.040 Preskušanje v zvezi z Environmental testing
okoljem
19.080 Električno in elektronsko Electrical and electronic
preskušanje testing
71.040.10 Kemijski laboratoriji. Chemical laboratories.
Laboratorijska oprema Laboratory equipment
SIST EN IEC 61010-2-012:2022 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN IEC 61010-2-012:2022
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SIST EN IEC 61010-2-012:2022
EUROPEAN STANDARD EN IEC 61010-2-012
NORME EUROPÉENNE
EUROPÄISCHE NORM April 2022
ICS 19.080 Supersedes EN 61010-2-012:2016
English Version
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)

Règles de sécurité pour appareils électriques de mesurage, Sicherheitsbestimmungen für elektrische Mess-, Steuer-,

de régulation et de laboratoire - Partie 2-012: Exigences Regel- und Laborgeräte - Teil 2-012: Besondere

particulières pour les appareils d'essais climatiques et Anforderungen an Klima- und Umwelttestgeräte und andere

d'environnement, et autres appareils de conditionnement de Temperatur-Konditionierungsgeräte

température (IEC 61010-2-012:2019)
(IEC 61010-2-012:2019)

This European Standard was approved by CENELEC on 2019-05-17. 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 CEN-CENELEC

Management Centre 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 CEN-CENELEC Management Centre has the

same status as the official versions.

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

© 2022 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN IEC 61010-2-012:2022 E
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SIST EN IEC 61010-2-012:2022
EN IEC 61010-2-012:2022 (E)
European foreword

The text of document 66/687/FDIS, future edition 2 of IEC 61010-2-012, prepared by IEC/TC 66

"Safety of measuring, control and laboratory equipment" was submitted to the IEC-CENELEC parallel

vote and approved by CENELEC as EN IEC 61010-2-012:2022.
The following dates are fixed:

• latest date by which the document has to be implemented at national (dop) 2022-10-29

level by publication of an identical national standard or by endorsement

• latest date by which the national standards conflicting with the (dow) 2025-04-29

document have to be withdrawn

This document supersedes EN 61010-2-012:2016 and all of its amendments and corrigenda (if any).

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 Standardization Request given to CENELEC by the

European Commission and the European Free Trade Association.

Any feedback and questions on this document should be directed to the users’ national committee. A

complete listing of these bodies can be found on the CENELEC website.
Endorsement notice

The text of the International Standard IEC 61010-2-012:2019 was approved by CENELEC as a

European Standard without any modification.
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SIST EN IEC 61010-2-012:2022
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

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 5 ----------------------
SIST EN IEC 61010-2-012:2022
– 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

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IEC 61010-2-012:2019 © IEC 2019 – 3 –

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

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SIST EN IEC 61010-2-012:2022
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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, 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 61010-2-012 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;
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SIST EN IEC 61010-2-012:2022
IEC 61010-2-012:2019 © IEC 2019 – 5 –

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.
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.

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.

IEC 61010-2-012 is to be used in conjunction with the latest edition of IEC 61010-1. It was

established on the basis of the third edition (2010) and its Amendment 1 (2016), hereinafter

referred to as Part 1.

This Part 2-012 supplements or modifies the corresponding clauses in IEC 61010-1 so as to

convert that publication into the IEC standard: Particular requirements for climatic and

environmental testing and other temperature conditioning equipment.

Where a particular subclause of Part 1 is not mentioned in this Part 2-012, that subclause

applies as far as is reasonable. Where this Part 2-012 states "addition", "modification",

"replacement", or "deletion", the relevant requirement, test specification, or note in Part 1

should be adapted accordingly.
In this standard:
1) the following print types are used:
– requirements and definitions: in roman type;
– NOTES: in smaller roman type;
– conformity and tests: in italic type;
– terms used throughout this standard which have been defined in Clause 3: SMALL
ROMAN CAPITALS.

2) subclauses, figures, tables and notes which are additional to those in Part 1 are numbered

starting from 101. Additional annexes are lettered starting from AA.
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– 6 – IEC 61010-2-012:2019 © IEC 2019

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 standard using a

colour printer.
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SIST EN IEC 61010-2-012:2022
IEC 61010-2-012:2019 © IEC 2019 – 7 –
INTRODUCTION

This Part 2-012, along with Part 2-010 and Part 2-011, taken together, address the specific

HAZARDS associated with the heating and cooling of materials by equipment and are organized

as follows:

Specifically addresses the HAZARDS associated with equipment incorporating heating

IEC 61010-2-010
systems.

Specifically addresses the HAZARDS associated with equipment incorporating REFRIGERATING

IEC 61010-2-011
SYSTEMS.

Specifically addresses the HAZARDS associated with equipment incorporating both heating

and REFRIGERATING SYSTEMS that interact with each other such that the combined heating

and REFRIGERATING SYSTEM yield additional or more severe HAZARDS for the two systems

IEC 61010-2-012

than if treated separately. It also addresses the HAZARDS associated with the treatment of

materials by other factors like irradiation, excessive humidity, CO and MECHANICAL

MOVEMENT, etc.
Guidance for the application of the appropriate Part 2 standard(s)

When the equipment includes only a material heating system, and no REFRIGERATING SYSTEM

or other environmental factors apply, then Part 2-010 applies without needing Part 2-011 or

REFRIGERATING SYSTEM, and no
Part 2-012. Similarly, when the equipment includes only a

material heating system or other environmental factors apply, then Part 2-011 applies without

needing Part 2-010 or Part 2-012. However, when the equipment incorporates both a material

heating system, and a REFRIGERATING SYSTEM or the materials being treated in the intended

application introduce significant heat into the REFRIGERATING SYSTEM, a determination should

be made as to whether the interaction between the two systems will generate additional or

HAZARDS than if the systems were evaluated separately (CONTROLLED
more severe

TEMPERATURE, see flow chart for selection process). If the interaction of the heating and

cooling functions yields no additional or more severe HAZARDS, then both Part 2-010 and

Part 2-011 apply for their respective functions. Conversely, if additional or more severe

HAZARDS result from the combining of the heating and cooling functions, or if the equipment

incorporates additional material treatment factors, then Part 2-012 applies, but not Part 2-010

or Part 2-011.
What HAZARDS are applicable for a REFRIGERATING SYSTEM?

The typical HAZARDS for a REFRIGERATING SYSTEM (see Figure 101) consisting of a MOTOR-

COMPRESSOR, a CONDENSER, an expansion device and an EVAPORATOR include but are not

limited to:

– The maximum temperature of LOW-PRESSURE SIDE (return temperature) to the MOTOR-

COMPRESSOR. A MOTOR-COMPRESSOR incorporates a REFRIGERANT cooled motor and it

should be established that the maximum temperatures of the LOW-PRESSURE SIDE under

RATINGS within the motor.
least favourable condition do not exceed the insulation

– The maximum pressure of LOW-PRESSURE SIDE at the inlet to the MOTOR-COMPRESSOR. The

housing of the MOTOR-COMPRESSOR is exposed to this pressure and so the design RATING

of the MOTOR-COMPRESSOR housing should accommodate the worst-case pressures whilst

providing the correct safety margin for a pressure vessel.

– The maximum temperature of HIGH-PRESSURE SIDE to the CONDENSER. The temperatures of

the HIGH-PRESSURE SIDE under most unfavourable conditions may present a temperature

HAZARD if the OPERATOR is exposed to them or if the electrical insulation is degraded.

– The maximum pressure of HIGH-PRESSURE SIDE at the outlet to the MOTOR-COMPRESSOR.

The REFRIGERANT components downstream of the MOTOR-COMPRESSOR up to the expansion

device are exposed to this pressure and so the design RATING of these components should

accommodate the worst-case pressures whilst providing the appropriate safety margin for

a pressure vessel.
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– The maximum CONTROLLED TEMPERATURES, namely, the SOAKED TEMPERATURE CONDITIONS,

from which the heat is being extracted, may impact the maximum temperature of LOW-

PRESSURE SIDE to the MOTOR-COMPRESSOR as well as present a temperature HAZARD if the

OPERATOR is exposed to them or if the electrical insulation is degraded. Whether this

CONTROLLED TEMPERATURE is derived from an integral heating function of the device or

from the heat dissipated from the material being cooled, the impact under worst case

conditions should be evaluated.

– The current draw of the equipment should be established when including the worst-case

running conditions of the REFRIGERATING SYSTEM including any defrost cycles that may

apply.

The worst-case conditions should be determined for the equipment and will include both the

NORMAL USE conditions as well as the most unfavourable testing results under
least favourable
SINGLE FAULT CONDITIONS.
Figure 101 – Schema of a REFRIGERATING SYSTEM incorporating a CONDENSER
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IEC 61010-2-012:2019 © IEC 2019 – 9 –

The selection process is illustrated in the following flow chart (see Figure 102).

Figure 102 – Flow chart illustrating the selection process
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SIST EN IEC 61010-2-012:2022
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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
1 Scope and object
This clause of Part 1 is applicable except as follows:
1.1.1 Equipment included in scope
Replacement:
Replace the second paragraph by the following:

This part of IEC 61010 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.
Addition:
Add the following text after the last paragraph:

NOTE 101 Examples of such equipment include environmental testing and plant growth TEST CHAMBERS,

refrigerating CIRCULATORS which incorporate heating, and recirculating coolers for extracting heat.

It is possible that all or part of the equipment falls within the scope of one or more other

Part 2 standards of IEC 61010 as well as within the scope of this standard. In that case, the

requirements of those other Part 2 standards also apply. This document is intended for

application when one or more of the additional HAZARDS described in the above dashed listed

items are introduced. However, when the equipment incorporates only a REFRIGERATING

SYSTEM or only a heating function or a combination of the two without introducing the

additional HAZARDS described in the above list, then IEC 61010-2-011 or IEC 61010-2-010 or

both, as appropriate, apply instead of this Part 2-012.

See further information in the flow chart (Figure 102) for selection process and guidance in

the Introduction.
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SIST EN IEC 61010-2-012:2022
IEC 61010-2-012:2019 © IEC 2019 – 11 –

NOTE 102 Subclause 3.1.107 and Annex BB provide the definition and requirements for the protection of people

who are inside WALK-IN EQUIPMENT.
1.1.2 Equipment excluded from scope
Addition:
Add the following items after item j):
aa) equipment for the heating, cooling, and ventilation of laboratories;
bb) sterilizing equipment.
1.2 Object
1.2.1 Aspects included in scope
Addition:
Add the following items after item g):
aa) biohazards (see 13.101);
bb) hazardous chemical substances (see 13.102).
2 Normative references
This clause of Part 1 is applicable, except as follows:
Addition:

IEC 60079-15:2010, Explosive atmospheres – Part 15: Equipment protection by type of

protection "n"

IEC 60079-20-1, Explosive atmospheres – Part 20-1: Material characteristics for gas and

vapour classification – Test methods and data

IEC 60335-2-34:2012, Household and similar electrical appliances – Safety – Part 2-34:

Particular requirements for motor-compressors
IEC 60335-2-34:2012/AMD1:2015
IEC 60335-2-34:2012/AMD2:2016

IEC 60950-1:2005, Information technology equipment – Safety – Part 1: General requirements

ISO 7010, Graphical symbols – Safety colours and safety signs – Registered safety signs

(available at https://www.iso.org/obp)
3 Terms and definitions
This clause of Part 1 is applicable except as follows:
3.1 Equipment and states of equipment
Addition:
Add the following new terms and definitions:
---------------------- Page: 15 ----------------------
SIST EN IEC 61010-2-012:2022
– 12 – IEC 61010-2-012:2019 © IEC 2019
3.1.101
BATH

complete device intended for application of CONTROLLED TEMPERATURES to SPECIMENS by

immersion in a temperature-controlled liquid HEAT TRANSFER MEDIUM
3.1.102
CIRCULATOR

equipment intended for application of CONTROLLED TEMPERATURES to an APPLICATION SYSTEM

by external circulating of a temperature-contro
...

SLOVENSKI STANDARD
oSIST prEN 61010-2-012:2018
01-junij-2018
9DUQRVWQH]DKWHYH]DHOHNWULþQRRSUHPR]DPHULWYHQDG]RULQODERUDWRULMVNR
XSRUDERGHO3RVHEQH]DKWHYH]DRSUHPR]DNOLPDWVNDLQRNROMVND
SUHVNXãDQMDWHUGUXJRRSUHPR]DXUDYQDYDQMHWHPSHUDWXUH

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

Sicherheitsbestimmungen für elektrische Mess-, Steuer-, Regel- und Laborgeräte - Teil 2

-012: Besondere Anforderungen an Klima- und Umwelttestgeräte und andere
Temperatur-Konditionierungsgeräte
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
Ta slovenski standard je istoveten z: prEN 61010-2-012:2018
ICS:
19.040 Preskušanje v zvezi z Environmental testing
okoljem
19.080 (OHNWULþQRLQHOHNWURQVNR Electrical and electronic
SUHVNXãDQMH testing
71.040.10 Kemijski laboratoriji. Chemical laboratories.
Laboratorijska oprema Laboratory equipment
oSIST prEN 61010-2-012:2018 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 61010-2-012:2018
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oSIST prEN 61010-2-012:2018
66/656/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 61010-2-012 ED2
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2018-03-23 2018-06-15
SUPERSEDES DOCUMENTS:
66/649/RR
IEC TC 66 : SAFETY OF MEASURING, CONTROL AND LABORATORY EQUIPMENT
SECRETARIAT: SECRETARY:
United Kingdom Mr David Hyde
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:
Other TC/SCs are requested to indicate their interest, if
any, in this CDV to the secretary.
FUNCTIONS CONCERNED:
EMC ENVIRONMENT QUALITY ASSURANCE SAFETY

SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING

Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft
for Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.

This document is still under study and subject to change. It should not be used for reference purposes.

Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of

which they are aware and to provide supporting documentation.
TITLE:

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
PROPOSED STABILITY DATE: 2022
NOTE FROM TC/SC OFFICERS:

This CDV is intended to align IEC 61010-2-012:2016 with IEC 61010-1:2010 and its amendment

1:2016. A revision this soon is justified by the large number of significant changes introduced by this

amendment 1. With this revision IEC 61010-2-012 will be in line with the latest requirements of IEC

61010-1 + A1.

Copyright © 2018 International Electrotechnical Commission, IEC. All rights reserved. It is permitted to

download this electronic file, to make a copy and to print out the content for the sole purpose of preparing National

Committee positions. You may not copy or "mirror" the file or printed version of the document, or any part of it, for

any other purpose without permission in writing from IEC.
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This document contains a few significant technical changes to already accepted base documents (IEC

61010-1:2010 and its amendment 1:2016 and IEC 61010-2-012:2016) that are highlighted in the

foreword. Clause 6.8.3.1 is modified because otherwise it would need a specific European deviation in

order to be harmonised to the LVD 2014/35/EU (ref. NAC assessment of IEC 61010-1/A1).

The changes are realised as a new 2nd edition of IEC 61010-2-012 simply because of document

control; the previous edition 1.0 is based on the third edition of IEC 61010-1:2010 (without the

Amendment 1:2016) and amending it to incorporate the contents of IEC 61010-1 Amendment 1 would

need an unnecessary repeating of the requirements in that amendment 1 that are not particular for the

equipment in the scope of IEC 61010-2-012. Furthermore, technically, one would need to follow 4

documents in parallel to get the full text of this part 2 (61010-1:2010, 61010-1 A1:2016, 61010-2-

012:2016, and 61010-2-012 A1).With this approach, and when the consolidated version of IEC 61010-

1:2010/A1:2016 conveniently is published, only two documents are needed.

This document is being circulated in parallel with 66/659/INF, for track changes version.

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1 CONTENTS

2 FOREWORD ........................................................................................................................... 5

3 INTRODUCTION ..................................................................................................................... 8

4 1 Scope and object ........................................................................................................... 11

5 2 Normative references .................................................................................................... 12

6 3 Terms and definitions .................................................................................................... 12

7 4 Tests ............................................................................................................................. 18

8 5 Marking and documentation ........................................................................................... 24

9 6 Protection against electric shock ................................................................................... 33

10 7 Protection against mechanical HAZARDS ......................................................................... 35

11 8 Resistance to mechanical stresses ................................................................................ 36

12 9 Protection against the spread of fire .............................................................................. 37

13 10 Equipment temperature limits and resistance to heat ..................................................... 38

14 11 Protection against HAZARDS from fluids and solid foreign objects ................................... 42

15 12 Protection against radiation, including laser sources, and against sonic and

16 ultrasonic pressure ........................................................................................................ 57

17 13 Protection against liberated gases and substances, explosion and implosion ................ 58

18 14 Components and subassemblies ................................................................................... 60

19 15 Protection by interlocks ................................................................................................. 62

20 16 HAZARDS resulting from application ................................................................................ 64

21 17 RISK assessment ........................................................................................................... 65

22 Annex ................................................................................................................................... 66

23 Annex K (normative) Insulation requirements not covered by 6.7 ......................................... 66

24 Annex L (informative) Index of defined terms ....................................................................... 67

25 Annex AA (informative) Useful symbols ............................................................................... 69

26 Annex BB (informative) Protection for people who are inside WALK-IN EQUIPMENT ................. 72

27 Annex CC (informative) Safety requirements for components and piping .............................. 74

28 Annex DD (informative) Equipment containing FLAMMABLE REFRIGERANTS information

29 and marking requirements..................................................................................................... 80

30 Annex EE (normative) Non-sparking “n” electrical device ..................................................... 83

31 Bibliography .......................................................................................................................... 84

33 Figure 101 – Schema of a REFRIGERATING SYSTEM incorporating a CONDENSER ........................ 9

34 Figure 102 – Flow chart illustrating the selection process ..................................................... 10

35 Figure 103 – Scratching TOOL tip details ............................................................................... 52

37 Table 1 – Symbols ................................................................................................................ 26

38 Table 101 – Time-temperature conditions ............................................................................. 30

39 Table 102 – Maximum temperatures for MOTOR-COMPRESSORS .............................................. 40

40 Table 103 – Minimum temperature for determination of SATURATED-VAPOUR PRESSURE

41 of REFRIGERANT ..................................................................................................................... 47

42 Table 104 – REFRIGERANT flammability parameters ............................................................... 56

43 Table AA.1 – Useful symbols ................................................................................................ 69

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44 Table CC.1 – Parameters of pressure vessels according to EN 14276-1 ............................... 75

45 Table CC.2 – Parameters of piping according to EN 14276-2 ................................................ 76

46 Table CC.3 – Components and piping requirements .............................................................. 77

47 Table CC.4 – Minimum wall thickness for copper and steel tubing ........................................ 79

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50 INTERNATIONAL ELECTROTECHNICAL COMMISSION
51 ____________
53 SAFETY REQUIREMENTS FOR ELECTRICAL EQUIPMENT FOR
54 MEASUREMENT, CONTROL AND LABORATORY USE –
56 Part 2-012: Particular requirements for climatic and environmental testing
57 and other temperature conditioning equipment
59 FOREWORD

60 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising

61 all national electrotechnical committees (IEC National Committees). The object of IEC is to promote

62 international co-operation on all questions concerning standardization in the electrical and electronic fields. To

63 this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,

64 Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC

65 Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested

66 in the subject dealt with may participate in this preparatory work. International, governmental and non-

67 governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely

68 with the International Organization for Standardization (ISO) in accordance with conditions determined by

69 agreement between the two organizations.

70 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international

71 consensus of opinion on the relevant subjects since each technical committee has representation from all

72 interested IEC National Committees.

73 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National

74 Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC

75 Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any

76 misinterpretation by any end user.

77 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications

78 transparently to the maximum extent possible in their national and regional publications. Any divergence

79 between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in

80 the latter.

81 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity

82 assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any

83 services carried out by independent certification bodies.

84 6) All users should ensure that they have the latest edition of this publication.

85 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and

86 members of its technical committees and IEC National Committees for any personal injury, property damage or

87 other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and

88 expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC

89 Publications.

90 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is

91 indispensable for the correct application of this publication.

92 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of

93 patent rights. IEC shall not be held responsible for identifying any or all such patent rights.

94 International Standard IEC 61010-2-012 has been prepared by IEC technical committee 66:

95 Safety of measuring, control and laboratory equipment.

96 It has the status of a group safety publication in accordance with IEC Guide 104.

97 This second edition cancels and replaces the first edition published in 2016. It constitutes a

98 technical revision and includes the following changes from the first edition:
99 • alignment with changes introduced by Amendment 1 of IEC 61010-1;
100 • changes related to the use of small capitals only for defined terms;
101 • clarifications for cooling tests in 4.4.2.10;

102 • requirements for overtemperature protection in 10.101, including deletion of second part of

103 b) and c);
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104 • changes pertaining to the accurate employment of terms of temperature, operating

105 temperature, working temperature, application temperature, room temperature and

106 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,

107 11.7.2.101.3, 13.2.102, 14.102, 15.101, 15.102, 15.103, Introduction and many other

108 locations. For the purpose of clarification, definition of 3.5.114, CONTROLLED TEMPERATURE

109 is added.
110 The text of this standard is based on the following documents:
FDIS Report on voting
66/xxx/FDIS 66/xxx/RVD
111

112 Full information on the voting for the approval of this standard can be found in the report on

113 voting indicated in the above table.

114 This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

115 A list of all parts of the IEC 61010 series, under the general title, Safety requirements for

116 electrical equipment for measurement, control, and laboratory use, may be found on the IEC

117 website.

118 IEC 61010-2-012 is to be used in conjunction with the latest edition of IEC 61010-1. It was

119 established on the basis of the third edition (2010) and its Amendment 1 (2016).

120 This Part 2-012. supplements or modifies the corresponding clauses in IEC 61010-1 so as to

121 convert that publication into the IEC standard: Particular requirements for climatic and

122 environmental testing and other temperature conditioning equipment.

123 Where a particular subclause of Part 1 is not mentioned in this Part 2, that subclause applies

124 as far as is reasonable. where this part states “addition”, “modification”, “replacement”, or

125 “deletion”, the relevant requirement, test specification, or note in Part 1 should be adapted

126 accordingly.
127 In this standard:
128 1) the following print types are used:
129 – requirements and definitions: in roman type;
130 – NOTES: in smaller roman type;
131 – conformity and tests: in italic type;

132 – terms used throughout this standard which have been defined in Clause 3: SMALL

133 ROMAN CAPITALS.

134 2) subclauses, figures, tables and notes which are additional to those in Part 1 are numbered

135 starting from 101. Additional annexes are lettered starting from AA.

136 The committee has decided that the contents of this publication will remain unchanged until

137 the stability date indicated on the IEC website under "http://webstore.iec.ch" in the data

138 related to the specific publication. At this date, the publication will be
139 • reconfirmed,
140 • withdrawn,
141 • replaced by a revised edition, or
142 • amended.
143
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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 document using a

colour printer.
144
145
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146 INTRODUCTION

147 This standard, in conjunction with Part 2-010 and Part 2-011, addresses the specific HAZARDS

148 associated with the heating and cooling of materials by equipment and are segregated as

149 follows:

specifically addresses the HAZARDS associated with equipment incorporating heating

IEC 61010-2-010
systems.

specifically addresses the HAZARDS associated with equipment incorporating REFRIGERATING

IEC 61010-2-011
SYSTEMS.

specifically addresses the HAZARDS associated with equipment incorporating both heating

and REFRIGERATING SYSTEMS that interact with each other such that the combined heating

and cooling system yield additional or more severe HAZARDS for the two systems than if

IEC 61010-2-012

treated separately. It also addresses the HAZARDS associated with the treatment of materials

by other factors like irradiation, excessive humidity, CO and MECHANICAL MOVEMENT etc.

150
151 Guidance for the application of the appropriate Part 2 standard(s)

152 When the equipment includes only a material heating system, and no REFRIGERATING SYSTEM

153 or other environmental factors apply, then Part 2-010 applies without needing Part 2-011 or

154 Part 2-012. Similarly, when the equipment includes only a REFRIGERATING SYSTEM, and no

155 material heating system or other environmental factors apply, then Part 2-011 applies without

156 needing Part 2-010 or Part 2-012. However, when the equipment incorporates both a material

157 heating system, and a REFRIGERATING SYSTEM or the materials being treated in the intended

158 application introduce significant heat into the REFRIGERATING SYSTEM, a determination should

159 be made whether the interaction between the two systems will generate additional or more

160 severe HAZARDS than if the systems were evaluated separately (CONTROLLED TEMPERATURE,

161 see flow chart for selection process). If the interaction of the heating and cooling functions

162 yields no additional or more severe HAZARDS then both Part 2-010 and Part 2-011 apply for

163 their respective functions. Conversely, if additional or more severe HAZARDS result from the

164 combining of the heating and cooling function, or the equipment incorporates additional

165 material treatment factors then Part 2-012 applies but not Part 2-010 or Part 2-011.

166 What HAZARDS are applicable for a REFRIGERATING SYSTEM?

167 The typical HAZARDS for a REFRIGERATING SYSTEM (see Figure 101) consisting of a MOTOR-

168 COMPRESSOR, a CONDENSER, an expansion device and an EVAPORATOR include but are not

169 limited to:

170 – The maximum temperature of LOW-PRESSURE SIDE (return temperature) to the MOTOR-

171 COMPRESSOR. A MOTOR-COMPRESSOR incorporates a REFRIGERANT cooled motor and it

172 should be established that the maximum temperatures of LOW-PRESSURE SIDE under least

173 favourable condition do not exceed the insulation RATINGS within the motor.

174 – The maximum pressure of LOW-PRESSURE SIDE at the inlet to the MOTOR-COMPRESSOR. The

175 housing of the MOTOR-COMPRESSOR is exposed to this pressure and so the design RATING

176 of the MOTOR-COMPRESSOR housing should accommodate the worst case pressures whilst

177 providing the correct safety margin for a pressure vessel.

178 – The maximum temperature of HIGH-PRESSURE SIDE to the CONDENSER. The temperatures of

179 HIGH-PRESSURE SIDE under most unfavourable conditions may present a temperature

180 HAZARD if the OPERATOR is exposed to or electrical insulation is degraded.

181 – The maximum pressure of HIGH-PRESSURE SIDE at the outlet to the MOTOR-COMPRESSOR.

182 The REFRIGERANT components downstream of the MOTOR-COMPRESSOR up to the expansion

183 device are exposed to this pressure and so the design RATING of these components should

184 accommodate the worst case pressures whilst providing the appropriate safety margin for

185 a pressure vessel.

186 – The maximum CONTROLLED TEMPERATURES, namely, the SOAKED TEMPERATURE CONDITIONS,

187 where the heat is being extracted from, may impact the maximum temperature of LOW-

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188 PRESSURE SIDE to the MOTOR-COMPRESSOR as well as present a temperature HAZARD if the

189 OPERATOR is exposed to or electrical insulation is degraded. Whether this CONTROLLED

190 TEMPERATURE is derived from an integral heating function of the device or from the heat

191 dissipated from the material being cooled the impact under worst case conditions should

192 be evaluated.

193 – The current draw of the equipment should be established when including the worst case

194 running conditions of the REFRIGERATING SYSTEM including any defrost cycles that may

195 apply.

196 The worst case conditions should be determined for the equipment and will include both the

197 least favourable NORMAL USE conditions as well as the most unfavourable testing results under

198 SINGLE FAULT CONDITIONS.
Maximum temperature
and pressure at
HIGH-PRESSURE SIDE
CONDENSER
MOTOR-
Expansion
COMPRESSOR
device
EVAPORATOR
Application
under SOAKED
Maximum temperature TEMPERATURE
and pressure at CONDITIONS
LOW-PRESSURE SIDE
IEC
199
200 Figure 101 – Schema of a REFRIGERATING SYSTEM incorporating a CONDENSER
201
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202 The selection process is illustrated in the following flow chart (see Figure 102).

Which Part 2 standard applies for equipment
under the scope of IEC 61010 that incorporates
heating and/or cooling?
Additional material treatment factors may
include irradiation, excessive humidity, CO ,
salt mist and chemicals etc.
Does the equipment
YES NO
Part 2-012 applies
incorporate additional material
alone
treatment factors?
YES NO
Does the equipment include a
REFRIGERATING SYSTEM?
Part 2-010 applies
alone
YES NO
Does the equipment include Part 2-011 applies
the heating of materials? alone
The application temperature could
be derived from the resultant heat
of the material being treated or an
integral heating function
Does the application
YES NO
Part 2-012 applies Both Part 2-010 and
temperature adversely impact
alone Part 2-011 apply
the REFRIGERATING SYSTEM?
The equipment shall be evaluated The equipment may take
to ensure the HAZARDS from the measures to reliably mitigate the
application temperature have impact of the application
been mitigated temperature
[JR1]
IEC
203 Figure 102 – Flow chart illustrating the selection process
204
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205 SAFETY REQUIREMENTS FOR ELECTRICAL EQUIPMENT FOR
206 MEASUREMENT, CONTROL AND LABORATORY USE –
207
208 Part 2-012: Particular requirements for climatic and environmental testing
209 and other temperature conditioning equipment
210
211
212
213 1 Scope and object
214 This clause of Part 1 is applicable except as follows:
215 1.1.1 Equipment included in scope
216 Replacement:
217 Replace the second paragraph by the following:

218 This Part 2 of IEC 61010 specifies safety requirements for electrical equipment and their

219 accessories within the categories a) through c), wherever they are intended to be used,

220 whenever that equipment incorporates one or more of the following characteristics:

221 – A REFRIGERATING SYSTEM that is acted on or impacted by an integral heating function such

222 that the combined heating and cooling system generates additional and/or more severe

223 HAZARDS than those for the two systems if treated separately.

224 – The materials being treated in the intended application introduce significant heat into the

225 REFRIGERATING SYSTEM that the cooling system in the application yield additional and/or

226 more severe HAZARDS than those for the cooling system if operated at the maximum RATED

227 ambient alone.

228 – An irradiation function for the materials being treated presenting additional HAZARDS.

229 – A function to expose the materials being treated to excessive humidity, carbon dioxide,

230 salt mist, or other substances which may result in additional HAZARDS.
231 – A function of MECHANICAL MOVEMENT presenting additional HAZARDS.

232 – Provision for an OPERATOR to walk-in to the operating area to load or unload the materials

233 being treated.
234 Addition:
235 Add the following text after the last paragraph:

236 NOTE 101 Examples of such equipment include environmental testing and plant growth TEST CHAMBERS,

237 refrigerating CIRCULATORS which incorporate heating, recirculating coolers for extracting heat.

238 If all or part of the equipment falls within the scope of one or more other Part 2 standards of

239 IEC 61010 as well as within the scope of this standard, it should also meet the requirements

240 of those other Part 2 standards. However, when the equipment incorporates only a

241 REFRIGERATING SYSTEM or only a heating function or a combination of the two without

242 introducing additional HAZARDS described in the above dashed paragraphs then the

243 application of IEC 61010-2-011 or IEC 61010-2-010 or both, as applicable, shall be

244 considered instead of this Part 2.

245 See further information in the flow chart for selection process and guidance in the

246 INTRODUCTION.

247 NOTE 102 Subclause 3.1.107 and Annex BB provides definition and requirements for protection of people who

248 are inside WALK-IN EQUIPMENT.
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249 1.1.2 Equipment excluded from scope
250 Addition:
251 Add the following two new items after item j):
252 aa) equipment for the heating, cooling, and ventilation of laboratories;
253 bb) sterilizing equipment.
254 1.2 Object
255 1.2.1 Aspects included in scope
256 Addition:
257 Add two new items to the list:
258 aa) biohazards (see 13.101);
259 bb) hazardous chemical substances (see13.102).
260 2 Normative references
261 This clause of Part 1 is applicable, except as follows:
262 Additions:

263 IEC 60079-15:2010, Explosive Atmospheres – Part 15: Equipment protection by type of

264 protection “n”

265 IEC 60079-20, Explosive Atmospheres – Part 20: Material characteristics for gas and vapour

266 classification

267 IEC 60335-2-24:2010, Household and similar electrical appliances – Safety – Part 2-24:

268 Particular requirements for refrigerating appliances, ice-cream appliances and ice makers

269 IEC 60335-2-24:2010/AMD1:2012

270 IEC 60335-2-34:2012, Household and similar electrical appliances – Safety – Part 2-34:

271 Particular requirements for MOTOR-COMPRESSORS
272 IEC 60335-2-34:2012/AMD1:2015

273 ISO 7010:2011,Graphical symbols – Safety colours and safety signs – Registered safety signs

274 3 Terms and definitions
275 This clause of Part 1 is applicable except as follows:
276 3.1 Equipment and states of equipment
277 Addition:
278 Additional definitions:
279 3.1.101
280 BATH

281 complete device intended for application of CONTROLLED TEMPERATURES to SPECIMENS by

282 immersion in a temperature-controlled liquid HEAT TRANSFER MEDIUM
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oSIST prEN 61010-2-012:2018
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