SIST EN 61010-2-011:2017

Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 2-011: Particular requirements for refrigerating equipment (IEC 61010-2-011:2016)

This group safety publication is primarily intended to be used as a product safety standard for
the products mentioned in the scope, but shall also be used by technical committees in the
preparation of their publications for products similar to those mentioned in the scope of this
standard, in accordance with the principles laid down in IEC guide 104 and ISO/IEC Guide 51.
This Part 2 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 that equipment incorporates REFRIGERATING SYSTEMS whether an integral part of, or
remote to the equipment and the equipment is in direct control of the REFRIGERATING SYSTEM.
This Part 2 details all the requirements when up to 150 g of FLAMMABLE REFRIGERANT are used
per stage of a REFRIGERATING SYSTEM. Additional requirements beyond the current scope of
this standard apply if a refrigerant charge of FLAMMABLE REFRIGERANT exceeds this amount.

Sicherheitsbestimmungen für elektrische Mess-, Steuer-, Regel- und Laborgeräte - Teil 2-011: Besondere Anforderungen für KÜHLGERÄT (IEC 61010-2-011:2016)

Règles de sécurité pour appareils électriques de mesurage, de régulation et de laboratoire - Partie 2-011: Exigences particulières pour appareils de réfrigération (IEC 61010-2-011:2016)

L'IEC 61010-2-011:2016 spécifie les exigences de sécurité particulières pour les types a) à c) suivants d'appareils électriques et leurs accessoires, quel que soit l'endroit dans lequel ils sont destinés à être utilisés, lorsque ces appareils comportent des SYSTEMES FRIGORIFIQUES, que ces derniers fassent partie intégrante des appareils ou qu'ils soient distants des appareils, et que les appareils sont sous la commande directe du SYSTEME FRIGORIFIQUE. La présente Partie 2 décrit toutes les exigences correspondant à l'utilisation d'une quantité de FLUIDE FRIGORIGENE INFLAMMABLE allant jusqu'à 150 g par étage d'un SYSTEME FRIGORIFIQUE. Lorsqu'une charge de FLUIDE FRIGORIGENE INFLAMMABLE dépasse cette quantité, des exigences supplémentaires hors du domaine d'application de la présente norme s'appliquent. Elle a le statut de publication groupée de sécurité, conformément au Guide 104 de l'IEC.
Cette publication doit être lue conjointement avec la IEC 61010-1:2010

Varnostne zahteve za električno opremo za meritve, nadzor in laboratorijsko uporabo - 2-011. del: Posebne zahteve za hladilno opremo (IEC 61010-2-011:2016)

Ta publikacija skupinske varnosti se uporablja predvsem kot standard o varnosti izdelka za izdelke, ki so omenjeni v okviru publikacije, vendar je namenjena tudi tehničnim odborom pri pripravi publikacij za izdelke, ki so podobni izdelkom, omenjenim v okviru tega standarda, skladno z načeli vodil IEC 104 in ISO/IEC 51.
Ta 2. del standarda IEC 61010 določa posebne varnostne zahteve za naslednje vrste a) do c) električne opreme in pribora, kadar sta namenjena uporabi, kadar oprema zajema HLADILNE SISTEME, ki so sestavni del ali oddaljeni od opreme, in oprema neposredno nadzoruje HLADILNI SISTEM. Ta 2. del podrobno opisuje vse zahteve, ko se v eni fazi HLADILNEGA SISTEMA uporablja do 150 g VNETLJIVEGA HLADILNEGA SREDSTVA. Dodatne zahteve, ki so zunaj področja uporabe tega standarda, se uporabljajo, če polnjenje VNETLJIVEGA HLADILNEGA SREDSTVA preseže to količino.

General Information

• Status: Published
• Publication Date: 07-Aug-2017
• ICS: 19.080 - Electrical and electronic testing
• ICS: 27.200 - Refrigerating technology
• ICS: 71.040.10 - Chemical laboratories. Laboratory equipment
• Technical Committee: MOV - Measuring equipment for electromagnetic quantities
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 08-May-2017
• Due Date: 13-Jul-2017
• Completion Date: 08-Aug-2017
• Ref Project: EN 61010-2-011:2017 - Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 2-011: Particular requirements for refrigerating equipment

Relations

• Replaced By: SIST EN IEC 61010-2-011:2022 - Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 2-011: Particular requirements for refrigerating equipment (IEC 61010-2-011:2019)
• Effective Date: 23-Nov-2021
• Replaced By: SIST EN IEC 61010-2-011:2022 - Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 2-011: Particular requirements for refrigerating equipment (IEC 61010-2-011:2019)
• Effective Date: 07-Jun-2022
• Revised: SIST EN IEC 61010-2-011:2022 - Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 2-011: Particular requirements for refrigerating equipment (IEC 61010-2-011:2019)
• Effective Date: 12-Jun-2018

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 61010-2-011:2017
01-september-2017
9DUQRVWQH]DKWHYH]DHOHNWULþQRRSUHPR]DPHULWYHQDG]RULQODERUDWRULMVNR
XSRUDERGHO3RVHEQH]DKWHYH]DKODGLOQRRSUHPR,(&
Safety requirements for electrical equipment for measurement, control, and laboratory
use - Part 2-011: Particular requirements for refrigerating equipment (IEC 61010-2-
011:2016)
Sicherheitsbestimmungen für elektrische Mess-, Steuer-, Regel- und Laborgeräte - Teil 2
-011: Besondere Anforderungen für KÜHLGERÄT (IEC 61010-2-011:2016)
Règles de sécurité pour appareils électriques de mesurage, de régulation et de
laboratoire - Partie 2-011: Exigences particulières pour appareils de réfrigération (IEC
61010-2-011:2016)
Ta slovenski standard je istoveten z: EN 61010-2-011:2017
ICS:
19.080 (OHNWULþQRLQHOHNWURQVNR Electrical and electronic
SUHVNXãDQMH testing
27.200 Hladilna tehnologija Refrigerating technology
71.040.10 Kemijski laboratoriji. Chemical laboratories.
Laboratorijska oprema Laboratory equipment
SIST EN 61010-2-011:2017 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 61010-2-011:2017

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SIST EN 61010-2-011:2017


EUROPEAN STANDARD EN 61010-2-011

NORME EUROPÉENNE

EUROPÄISCHE NORM
April 2017
ICS 19.080

English Version
Safety requirements for electrical equipment for measurement,
control, and laboratory use - Part 2-011: Particular requirements
for refrigerating equipment
(IEC 61010-2-011:2016)
Règles de sécurité pour appareils électriques de mesurage, Sicherheitsbestimmungen für elektrische Mess-, Steuer-,
de régulation et de laboratoire - Partie 2-011: Exigences Regel- und Laborgeräte - Teil 2-011: Besondere
particulières pour appareils de réfrigération Anforderungen für KÜHLGERÄT
(IEC 61010-2-011:2016) (IEC 61010-2-011:2016)
This European Standard was approved by CENELEC on 2016-08-25. 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, 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: Avenue Marnix 17, B-1000 Brussels
© 2017 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
 Ref. No. EN 61010-2-011:2017 E

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SIST EN 61010-2-011:2017
EN 61010-2-011:2017
European foreword
The text of document 66/589/FDIS, future edition 1 of IEC 61010-2-011, 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 61010-2-011:2017.
The following dates are fixed:
(dop) 2017-10-21
• latest date by which the document has to be implemented at
national level by publication of an identical national
standard or by endorsement
• latest date by which the national standards conflicting with (dow) 2020-04-21
the document have to be withdrawn

Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] 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.
Endorsement notice
The text of the International Standard IEC 61010-2-011:2016 was approved by CENELEC as a
European Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards indicated:
Addition
IEC 60079-20-1:2010 NOTE Harmonized as EN 60079-20-1:2010.
EN ISO 4126-1 NOTE Harmonized as EN ISO 4126-1.
EN ISO 4126-2 NOTE Harmonized as EN ISO 4126-2.

2

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SIST EN 61010-2-011:2017
EN 61010-2-011:2017

Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
NOTE 1 When 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.

Addition
Publication Year Title EN/HD Year
IEC 60079-15 2010 Explosive atmospheres -- Part 15: EN 60079-15 2010
Equipment protection by type of protection
"n"
IEC 60335-2-34 2012 Household and similar electrical appliances EN 60335-2-34 2013
- Safety -- Part 2-34: Particular
requirements for motor-compressors
+ A1 2015  + A1 2015
UL 471 2010 Commercial refrigerators and freezers - -

3

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SIST EN 61010-2-011:2017




IEC 61010-2-011

®


Edition 1.0 2016-07




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 2-011: Particular requirements for refrigerating equipment




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

de laboratoire –


Partie 2-011: Exigences particulières pour appareils de réfrigération













INTERNATIONAL

ELECTROTECHNICAL

COMMISSION


COMMISSION

ELECTROTECHNIQUE


INTERNATIONALE




ICS 19.080 ISBN 978-2-8322-3505-8



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

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SIST EN 61010-2-011:2017
– 2 – IEC 61010-2-011:2016 © IEC 2016
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope and object . 9
2 Normative references. 10
3 Terms and definitions . 10
4 Tests . 11
5 Marking and documentation . 13
6 Protection against electric shock . 17
7 Protection against mechanical HAZARDS . 17
8 Resistance to mechanical stresses . 17
9 Protection against the spread of fire . 17
10 Equipment temperature limits and resistance to heat . 18
11 Protection against HAZARDS from fluids . 19
12 Protection against radiation, including laser sources, and against sonic and
ultrasonic pressure . 29
13 Protection against liberated gases and substances, explosion and implosion . 29
14 Components and subassemblies . 30
15 Protection by safety interlocks . 30
16 HAZARDS resulting from application. 30
17 RISK assessment . 31
Annexes . 32
Annex G (informative) Leakage and rupture from fluids under pressure . 32
Annex L (informative) Index of defined terms . 32
Annex AA (normative) Non-sparking “n” electrical apparatus . 33
Annex BB (informative) HAZARDS associated with REFRIGERATING SYSTEMS and
refrigerants . 34
Annex CC (informative) Safety requirements for components and piping . 36
Annex DD (informative) Equipment containing FLAMMABLE REFRIGERANTS Information
and marking requirements . 41
Bibliography . 44

Figure 101 – Schema of a REFRIGERATING SYSTEM incorporating a condenser . 7
Figure 102 – Flow chart illustrating the selection process . 8
Figure 103 – Scratching TOOL tip details . 25

Table 1 – Symbols . 15
Table 101 – Maximum temperatures for motor-compressors . 18
Table 102 – Minimum temperature for determination of saturated vapor pressure of
refrigerant. 20
Table 103 – Refrigerant flammability parameters . 28
Table CC.1 – Parameters of pressure vessels according to EN 14276-1 . 36
Table CC.2 – Parameters of pipping according to EN 14276-2 . 38
Table CC.3 – Component and piping requirements . 39

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SIST EN 61010-2-011:2017
IEC 61010-2-011:2016 © IEC 2016 – 3 –
Table CC.4 – Minimum wall thickness for copper and steel tubing . 40
Table DD.1 – Quantity of Group A2/A3 refrigerant per occupied space . 43

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SIST EN 61010-2-011:2017
– 4 – IEC 61010-2-011:2016 © IEC 2016
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

SAFETY REQUIREMENTS FOR ELECTRICAL EQUIPMENT
FOR MEASUREMENT, CONTROL, AND LABORATORY USE –

Part 2-011: Particular requirements for REFRIGERATING 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 61010-2-011 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.
The text of this standard is based on the following documents:
FDIS Report on voting
66/589/FDIS 66/598/RVD

Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

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SIST EN 61010-2-011:2017
IEC 61010-2-011:2016 © IEC 2016 – 5 –
A list of all parts of the IEC 61010 series, under the general title, Safety requirements for
electrical equipment for measurement, control, and laboratory use, may be found on the IEC
website.
IEC 61010-2-011 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) of IEC 61010-1.
This Part 2-011 supplements or modifies the corresponding clauses in IEC 61010-1 so as to
convert that publication into the IEC standard: Particular requirements for REFRIGERATING
EQUIPMENT.
Where a particular subclause of Part 1 is not mentioned in this Part 2, that subclause applies
as far as is reasonable. Where this part 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.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC website under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.

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.

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SIST EN 61010-2-011:2017
– 6 – IEC 61010-2-011:2016 © IEC 2016
INTRODUCTION
This standard, in conjunction with Part 2-010 and Part 2-012, addresses the specific HAZARDS
associated with the heating and cooling of materials by equipment which are segregated as
follows:
IEC 61010-2-010 specifically addresses the HAZARDS associated with equipment
incorporating heating systems.
IEC 61010-2-011 specifically addresses the HAZARDS associated with equipment
incorporating REFRIGERATING SYSTEMS.
IEC 61010-2-012 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
treated separately. It also addresses the HAZARDS associated with the
treatment of materials by other factors like irradiation, excessive
humidity, CO and mechanical movement.
2

Guidance for the application of the correct 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 whether the interaction between the two systems will generate additional or more
severe HAZARDS than if the systems were evaluated separately (application 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 results from the
combining of the heating and cooling function, or 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 excess of temperature of the low-pressure side (return temperature) to the motor-
compressor is higher than admissible. A motor-compressor incorporates a refrigerant
cooled motor and it should be established that the maximum temperatures of low-pressure
side under least favorable condition do not exceed the insulation RATINGS within the motor.
– The excess of pressure of the low-pressure side at the inlet to the motor-compressor is
higher than admissible. 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 excess of temperature of the high-pressure side to the condenser is higher than
admissible. The temperatures of the high-pressure side under the most unfavorable
conditions may present a temperature HAZARD if the OPERATOR is exposed, or an electrical
HAZARD if insulation is degraded.

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SIST EN 61010-2-011:2017
IEC 61010-2-011:2016 © IEC 2016 – 7 –
– The excess of pressure of the high-pressure side to the condenser is higher than
admissible. 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 correct
safety margin for a pressure vessel.
– The maximum application temperatures, where the heat is being extracted from, may
impact the maximum temperature of the low-pressure side to the motor-compressor as
well as present a temperature HAZARD if the OPERATOR is exposed, or an electrical HAZARD
if insulation is degraded. Whether this application 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
least favorable NORMAL USE conditions as well as the most unfavorable testing results under
SINGLE FAULT CONDITIONS.
Maximum temperature
and pressure at Condenser
high-pressure side
Motor-
Expansion
compressor
device
Evaporator
Application
under SOAKED
Maximum temperature
TEMPERATURE
and pressure at CONDITIONS
low-pressure side
IEC

Figure 101 – Schema of a REFRIGERATING SYSTEM incorporating a condenser

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SIST EN 61010-2-011:2017
– 8 – IEC 61010-2-011:2016 © IEC 2016
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 ,
2
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

IEC
Figure 102 – Flow chart illustrating the selection process

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SIST EN 61010-2-011:2017
IEC 61010-2-011:2016 © IEC 2016 – 9 –
SAFETY REQUIREMENTS FOR ELECTRICAL EQUIPMENT
FOR MEASUREMENT, CONTROL, AND LABORATORY USE –

Part 2-011: Particular requirements for REFRIGERATING EQUIPMENT



1 Scope and object
This clause of Part 1 is applicable, except as follows:
1.1.1 Equipment included in the scope
Replacement:
Replace the first paragraph by the following:
This group safety publication is primarily intended to be used as a product safety standard for
the products mentioned in the scope, but shall also be used by technical committees in the
preparation of their publications for products similar to those mentioned in the scope of this
standard, in accordance with the principles laid down in IEC guide 104 and ISO/IEC Guide 51.
This Part 2 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 that equipment incorporates REFRIGERATING SYSTEMS whether an integral part of, or
remote to the equipment and the equipment is in direct control of the REFRIGERATING SYSTEM.
This Part 2 details all the requirements when up to 150 g of FLAMMABLE REFRIGERANT are used
per stage of a REFRIGERATING SYSTEM. Additional requirements beyond the current scope of
this standard apply if a refrigerant charge of FLAMMABLE REFRIGERANT exceeds this amount.
Addition:
Add the following text after the last paragraph:
NOTE 101 Examples for REFRIGERATING EQUIPMENT include, but are not limited to, laboratory equipment such as
laboratory refrigerators, freezers, refrigerated display cabinets, etc.
If 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, it should also meet the requirement of
those other Part 2 standards, In particular, if equipment is intended to be used as a centrifuge,
it should meet the requirements of IEC 61010-2-020. However, when the equipment
incorporates a REFRIGERATING SYSTEM and a heating function where the combination of the
two introduces additional or more sever HAZARDS than if treated separately then the
application of IEC 61010-2-012 should be considered instead of this Part 2.
See further information in the flow chart for the selection process and guidance in the
Introduction.
1.1.2 Equipment excluded from scope
Addition:
Add the following new item after item j):
aa) equipment incorporating transcritical refrigerant system (system that use CO ) or system
2
) as the refrigerant.
that use ammonia (NH
3

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SIST EN 61010-2-011:2017
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1.2 Object
1.2.1 Aspects included in scope
Replacement:
Replace the first paragraph by the following:
The object of this Part 2 is to assure that the design and methods of construction of
REFRIGERATING EQUIPMENT provide adequate protection for OPERATORS, bystanders, trained
service personnel, and the surrounding area against the specific HAZARDS that relate to
REFRIGERATING SYSTEMS.
Addition:
Add the following note after the existing note:
NOTE 101 A list of HAZARDS typically associated with REFRIGERATING SYSTEM and refrigerants is included in Annex
BB.
2 Normative references
This clause of Part 1 is applicable, except as follows:
Addition:
Add the following references to the list:
IEC 60079-15:2010, Explosive atmospheres – Part 15: Equipment protection by type of
protection “n”
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
UL 471:2010, Commercial Refrigerators and Freezers
3 Terms and definitions
This clause of Part 1 is applicable, except as follows:
Addition:
Add the following terms and definitions:
3.101
REFRIGERATING EQUIPMENT
test, measurement, control or laboratory equipment that incorporates a REFRIGERATING SYSTEM
either as an integral part of or remote to the equipment
3.102
REFRIGERATING SYSTEM
factory assembled unit for performing part of the refrigerant cycle (compression and
condensation) comprising one or more refrigerant compressors with motors, condensers,
liquid receivers (where required), interconnecting pipe work and ancillary equipment
...