Safety requirements for electrical equipment for measurement, control and laboratory use - Part 2-010: Particular requirements for laboratory equipment for the heating of materials

EN-IEC 61010-2-010 specifies particular safety requirements for the following types a) to c) of electrical equipment and their accessories, wherever they are intended to be used, whenever the heating of materials is one of the functions of the equipment. Addition: Add the following text after item c): 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 will also apply. In particular, if equipment is intended to be used for in vitro diagnostic (IVD) purposes, the requirements of IEC 610102101 will also apply. However, when the equipment incorporates a refrigerating system and a heating function where the combination of the two introduces additional or more severe HAZARDS than if treated separately, then it is possible that IEC 61010-2-012 is applicable instead of this Part 2-010. See further information in the flow chart (Figure 102) for the selection process and the guidance in the Introduction.

Sicherheitsbestimmungen für elektrische Mess-, Steuer-, Regel- und Laborgeräte - Teil 2-010: Besondere Anforderungen an Laborgeräte für das Erhitzen von Stoffen

Règles de sécurité pour appareils électriques de mesurage, de régulation et de laboratoire - Partie 2-010: Exigences particulières pour appareils de laboratoire utilisés pour l’échauffement des matières

L'article de la Partie 1 est applicable à l'exception de ce qui suit: 1.1.1 Appareils inclus dans le domaine d'application Remplacement: Remplacer le deuxième alinéa par ce qui suit: La présente partie de l'IEC 61010 spécifie les exigences de sécurité particulières pour les appareils électriques et leurs accessoires des types a) à c) suivants, quelle que soit l'utilisation à laquelle ils sont destinés, lorsque l'échauffement des matières est l'une des fonctions de l'appareil. Addition: Ajouter le texte suivant après le point c): Il est possible qu'une ou toutes les parties de l'appareil relèvent du domaine d'application d'une ou plusieurs autres Parties 2 de l'IEC 61010, ainsi que du domaine d'application de la présente norme. En particulier, si l'appareil est prévu pour être utilisé pour l'IVD, les exigences de l'IEC 61010-2-101 s'appliquent également. Toutefois, lorsque l'appareil comprend un système frigorifique et une fonction de chauffage dont la combinaison des deux introduit des dangers supplémentaires ou plus graves que lorsque le traitement est réalisé séparément, alors il est possible que l'IEC 61010-2-012 soit applicable à la place de la présente Partie 2-010. De plus amples informations sur le processus de sélection sont données dans l'organigramme (Figure 102) et des recommandations sont données dans l'Introduction. 1.1.2 Appareils exclus du domaine d'application Addition: Ajouter les points suivants après le point j): aa) appareils pour l'échauffement et la ventilation des laboratoires; bb) appareils de stérilisation; cc) appareil de chauffage et/ou de refroidissement à l'intérieur duquel il est prévu que l'OPERATEUR entre, et qui est assez grand pour que l'OPERATEUR puisse s'y tenir avec la ou les portes fermées.

Varnostne zahteve za električno opremo za meritve, nadzor in laboratorijsko uporabo - 2-010. del: Posebne zahteve za laboratorijsko opremo za gretje materialov

General Information

Status
Published
Public Enquiry End Date
13-Jun-2018
Publication Date
09-Jun-2020
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
28-May-2020
Due Date
02-Aug-2020
Completion Date
10-Jun-2020

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SLOVENSKI STANDARD
SIST EN IEC 61010-2-010:2020
01-julij-2020
Nadomešča:
SIST EN 61010-2-010:2015
Varnostne zahteve za električno opremo za meritve, nadzor in laboratorijsko
uporabo - 2-010. del: Posebne zahteve za laboratorijsko opremo za gretje
materialov

Safety requirements for electrical equipment for measurement, control and laboratory

use - Part 2-010: Particular requirements for laboratory equipment for the heating of

materials

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

-010: Besondere Anforderungen an Laborgeräte für das Erhitzen von Stoffen
Règles de sécurité pour appareils électriques de mesurage, de régulation et de

laboratoire - Partie 2-010: Exigences particulières pour appareils de laboratoire utilisés

pour l’échauffement des matières
Ta slovenski standard je istoveten z: EN IEC 61010-2-010:2020
ICS:
19.080 Električno in elektronsko Electrical and electronic
preskušanje testing
71.040.10 Kemijski laboratoriji. Chemical laboratories.
Laboratorijska oprema Laboratory equipment
SIST EN IEC 61010-2-010:2020 en,fr,de

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

---------------------- Page: 1 ----------------------
SIST EN IEC 61010-2-010:2020
---------------------- Page: 2 ----------------------
SIST EN IEC 61010-2-010:2020
EUROPEAN STANDARD EN IEC 61010-2-010
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2020
ICS 19.080; 71.040.20 Supersedes EN 61010-2-010:2014 and all of its
amendments and corrigenda (if any)
English Version
Safety requirements for electrical equipment for measurement,
control and laboratory use - Part 2-010: Particular requirements
for laboratory equipment for the heating of materials
(IEC 61010-2-010:2019)

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

mesurage, de régulation et de laboratoire - Partie 2-010: Regel- und Laborgeräte - Teil 2-010: Besondere

Exigences particulières pour appareils de laboratoire Anforderungen für Laborgeräte für das Erhitzen von Stoffen

utilisés pour l'échauffement des matières (IEC 61010-2-010:2019)
(IEC 61010-2-010:2019)

This European Standard was approved by CENELEC on 2019-03-19. 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

© 2020 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN IEC 61010-2-010:2020 E
---------------------- Page: 3 ----------------------
SIST EN IEC 61010-2-010:2020
EN IEC 61010-2-010:2020 (E)
European foreword

This document (EN IEC 61010-2-010:2020) consists of the text of IEC 61010-2-010:2019 prepared by

IEC/TC 66 "Safety of measuring, control and laboratory equipment".
The following dates are fixed:

• latest date by which the document has to be implemented at national (dop) 2020-11-22

level by publication of an identical national standard or by endorsement

• latest date by which the national standards conflicting with the (dow) 2023-05-22

document have to be withdrawn

This document supersedes EN 61010-2-010:2014 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 mandate given to CENELEC by the European Commission

and the European Free Trade Association, and supports essential requirements of EU Directive(s).

For the relationship with EU Directive(s) see informative Annex ZZ, which is an integral part of this

document.

EN IEC 61010-2-010:2020 includes the following significant changes with respect to

EN 61010-2-010:2014:
— adaptation of changes introduced by Amendment 1 of 61010-1;
— alignment with 61010-2-011 and 61010-2-012:
— New matching Introduction clarifying which standard(s) to use;
— new clause 5.4.102 instructions for flammable liquid heat transfer medium;
— clause 9.5 on flammable liquids replaced with text from 2-012;
— Equipment with high accessible current deleted;
— requirements in 10.101 b) and c) clarified;
— editorial corrections.
Endorsement notice

The text of the International Standard IEC 61010-2-010:2019 was approved by CENELEC as a

European Standard without any modification.

In the official version, for Bibliography, the following note has to be added for the standard indicated:

IEC 60335-2-6:2014 NOTE Harmonized as EN 60335-2-6:2015
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SIST EN IEC 61010-2-010:2020
EN IEC 61010-2-010:2020 (E)
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies. For

undated references, the latest edition of the referenced document (including any amendments)

applies.

NOTE 1 Where an International Publication has been modified by common modifications, indicated by (mod), the relevant

EN/HD applies.

NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here:

www.cenelec.eu.
Annex ZA of EN 61010-1:2010/A1:2019 is applicable with the following additions:
Publication Year Title EN/HD Year
ISO 7010 2011 Graphical symbols — Safety colours and safety EN ISO 7010 2012
signs — Registered safety signs
+Amd1
+Amd2
+Amd3
+Amd4
+Amd5
+Amd6
+Amd7
+Amd8
---------------------- Page: 5 ----------------------
SIST EN IEC 61010-2-010:2020
EN IEC 61010-2-010:2020 (E)
Annex ZZ
(informative)
Relationship between this European standard and the safety objectives of
Directive 2014/35/EU [2014 OJ L96] aimed to be covered

This European Standard has been prepared under a Commission’s standardization request relating to

harmonized standards in the field of the Low Voltage Directive, M/511, to provide one voluntary means

of conforming to safety objectives of Directive 2014/35/EU of the European Parliament and of the

Council of 26 February 2014 on the harmonization of the laws of the Member States relating to the

making available on the market of electrical equipment designed for use within certain voltage limits

[2014 OJ L96].

Once this standard is cited in the Official Journal of the European Union under that Directive,

compliance with the normative clauses of this standard given in Table ZZ.1 confers, within the limits of

the scope of this standard, a presumption of conformity with the corresponding safety objectives of

that Directive, and associated EFTA regulations.

Table ZZ.1 – Correspondence between this European standard and Annex I of Directive

2014/35/EU [2014 OJ L96]
Clause(s) / sub-
Safety objectives of Directive
clause(s)
Remarks / Notes
2014/35/EU (Annex I)
of this EN
1. General conditions
5.1
1 (a) the essential characteristics, the
5.2
recognition and observance of which will
5.4
ensure that electrical equipment will be
used safely and in applications for which it
was made, shall be marked on the
electrical equipment, or, if this is not
possible, on an accompanying document
6.6
1 (b) the electrical equipment, together
6.10
with its component parts, shall be made in
6.11
such a way as to ensure that it can be
Annex F
safely and properly assembled and
connected
5.4
1 (c) the electrical equipment shall be so
17 (for
designed and manufactured as to ensure
hazards not
that protection against the hazards set out
covered by
in points 2 and 3 is assured, providing that
clauses 6-16)
the equipment is used in applications for
See also the
which it was made and is adequately
details in
maintained
points 2 and 3
---------------------- Page: 6 ----------------------
SIST EN IEC 61010-2-010:2020
EN IEC 61010-2-010:2020 (E)
Clause(s) / sub-
Safety objectives of Directive
clause(s)
Remarks / Notes
2014/35/EU (Annex I)
of this EN
2. Protection against hazards arising from the electrical equipment

Measures of a technical nature shall be laid down in accordance with point 1, in order to ensure that:

4, 6.1 – 6.11,
2 (a) persons and domestic animals are
9.6, 11.6,
adequately protected against the danger
Annex F,
of physical injury or other harm which
Annex K
might be caused by direct or indirect
contact
4.4.4.2, 9.5,
2 (b) temperatures, arcs or radiation which
9.6, 10.1 -
would cause a danger, are not produced
10.5, 10.101,
4.4, 7.2- 7.7,
2 (c) persons, domestic animals and
9, 12.3, 12.5,
property are adequately protected against
12.6, 13.1,
non-electrical dangers caused by the
13.2, 16.2
electrical equipment which are revealed
by experience
6.7, Annex K
2 (d) the insulation is suitable for
foreseeable conditions

3. Protection against hazards which may be caused by external influences on the electrical

equipment

Technical measures shall be laid down in accordance with point 1, in order to ensure that the electrical

equipment:
7, 8
3 (a) meets the expected mechanical
requirements in such a way that persons,
domestic animals and property are not
endangered
1.4, 6.7.2.2.1,
3 (b) is resistant to non-mechanical
10.5, 10.101,
influences in expected environmental
11.6,
conditions, in such a way that persons,
14.3, 14.8, 15
domestic animals and property are not
endangered
4, 9, 14, 16.1
3 (c) does not endanger persons,
domestic animals and property in
foreseeable conditions of overload

WARNING 1 — Presumption of conformity stays valid only as long as a reference to this European

standard is maintained in the list published in the Official Journal of the European Union. Users of this

standard should consult frequently the latest list published in the Official Journal of the European

Union.

WARNING 2 — Other Union legislation may be applicable to the product(s) falling within the scope of

this standard.
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SIST EN IEC 61010-2-010:2020
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SIST EN IEC 61010-2-010:2020
IEC 61010-2-010
Edition 4.0 2019-02
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 2-010: Particular requirements for laboratory
equipment for the heating of materials
Exigences de sécurité pour appareils électriques de mesurage, de régulation et
de laboratoire –

Partie 2-010: Exigences particulières pour appareils de laboratoire utilisés pour

l'échauffement des matières
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 19.080; 71.040.20 ISBN 978-2-8322-6502-4

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: 9 ----------------------
SIST EN IEC 61010-2-010:2020
– 2 – IEC 61010-2-010:2019 © IEC 2019
CONTENTS

FOREWORD ........................................................................................................................... 3

INTRODUCTION ..................................................................................................................... 6

1 Scope and object ............................................................................................................. 9

2 Normative references ...................................................................................................... 9

3 Terms and definitions .................................................................................................... 10

4 Tests ............................................................................................................................. 10

5 Marking and documentation ........................................................................................... 10

6 Protection against electric shock ................................................................................... 14

7 Protection against mechanical HAZARDS ......................................................................... 16

8 Resistance to mechanical stresses ................................................................................ 16

9 Protection against the spread of fire .............................................................................. 17

10 Equipment temperature limits and resistance to heat ..................................................... 18

11 Protection against HAZARDS from fluids and solid foreign objects ................................... 19

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

ultrasonic pressure ........................................................................................................ 20

13 Protection against liberated gases and substances, explosion and implosion ................ 20

14 Components and subassemblies ................................................................................... 21

15 Protection by interlocks ................................................................................................. 22

16 HAZARDS resulting from application ................................................................................ 22

17 RISK assessment ........................................................................................................... 22

Annexes ............................................................................................................................... 23

Annex K (normative) Insulation requirements not covered by 6.7 ......................................... 24

Bibliography .......................................................................................................................... 25

Figure 101 – Schema of a refrigerating system incorporating a condenser .............................. 7

Figure 102 – Flow chart illustrating the selection process ....................................................... 8

Table 1 – Symbols ................................................................................................................ 10

Table 101 – Time-temperature conditions ............................................................................. 20

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SIST EN IEC 61010-2-010:2020
IEC 61010-2-010:2019 © IEC 2019 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SAFETY REQUIREMENTS FOR ELECTRICAL EQUIPMENT
FOR MEASUREMENT, CONTROL AND LABORATORY USE –
Part 2-010: Particular requirements for laboratory
equipment for the heating of materials
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 61010-2-010 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 fourth edition cancels and replaces the third edition published in 2014. 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) alignment with IEC 61010-2-011 and IEC 61010-2-012:
---------------------- Page: 11 ----------------------
SIST EN IEC 61010-2-010:2020
– 4 – IEC 61010-2-010:2019 © IEC 2019
– new matching Introduction clarifying which standard(s) to use;
– new 5.4.101 instructions for flammable liquid HEAT TRANSFER MEDIUM;
– subclause 9.5 on flammable liquids replaced with text from IEC 61010-2-012;
c) subclause 5.2.101 deleted;
d) requirements in 10.101 b) and c) clarified.
The text of this International Standard is based on the following documents:
CDV Report on voting
66/657/CDV 66/678/RVC

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.

This Part 2-010 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 2-010 supplements or modifies the corresponding clauses in IEC 61010-1 so as to

convert that publication into the IEC standard: Particular requirements for laboratory

equipment for the heating of materials.

Where a particular subclause of Part 1 is not mentioned in this Part 2-010, that subclause

applies as far as is reasonable. Where this Part 2-010 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: in roman type;
– NOTES in small roman type;
– conformity and test: 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.
---------------------- Page: 12 ----------------------
SIST EN IEC 61010-2-010:2020
IEC 61010-2-010:2019 © IEC 2019 – 5 –

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

stability date indicated on the IEC web site 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 document using a

colour printer.
---------------------- Page: 13 ----------------------
SIST EN IEC 61010-2-010:2020
– 6 – IEC 61010-2-010:2019 © IEC 2019
INTRODUCTION

This Part 2-010, Part 2-011 and Part 2-012, 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
IEC 61010-2-011
refrigerating 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
IEC 61010-2-012

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

treatment of materials by other factors like irradiation, excessive humidity, CO2 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

Part 2-012. Similarly, when the equipment includes only a refrigerating system, and no

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 more

severe HAZARDS than if the systems were evaluated separately (controlled temperature, see

flow chart of Figure 102 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

HAZARDS result
apply for their respective functions. Conversely, if additional or more severe

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 must be

established that the maximum temperatures of low-pressure side under least favourable

RATINGS within the motor.
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 must 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 must

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

a pressure vessel.

– The maximum controlled temperatures, namely, the soaked temperature conditions, where

the heat is being extracted from, may impact the maximum temperature of low-pressure

side to the motor-compressor as well as present a temperature HAZARD if the OPERATOR is

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SIST EN IEC 61010-2-010:2020
IEC 61010-2-010:2019 © IEC 2019 – 7 –

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 need to be determined for the equipment and will include both the

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

SINGLE FAULT CONDITIONS.
Figure 101 – Schema of a refrigerating system incorporating a condenser
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SIST EN IEC 61010-2-010:2020
– 8 – IEC 61010-2-010:2019 © IEC 2019

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 61010-2-010:2020
IEC 61010-2-010:2019 © IEC 2019 – 9 –
SAFETY REQUIREMENTS FOR ELECTRICAL EQUIPMENT
FOR MEASUREMENT, CONTROL AND LABORATORY USE –
Part 2-010: Particular requirements for laboratory
equipment for the heating of materials
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 particular safety requirements for the following types a) to c)

of electrical equipment and their accessories, wherever they are intended to be used,

whenever the heating of materials is one of the functions of the equipment.
Addition:
Add the following text after item c):

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 will also apply. In particular, if equipment is

intended to be used for in vitro diagnostic (IVD) purposes, the requirements of

IEC 61010-2-101 will also apply. However, when the equipment incorporates a refrigerating

system and a heating function where the combination of the two introduces additional or more

severe HAZARDS than if t
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