IEC 61010-2-201:2013

Safety requirements for electrical equipment for measurement, control and laboratory use - Part 2-201: Particular requirements for control equipment

IEC 61010-2-201:2013 specifies the complete safety requirements for control equipment (e.g. programmable controller (PLC)), the components of Distributed Control Systems, I/O devices, Human Machine Interface (HMI)). Safety terms of general use are defined in IEC 61010-1. More specific terms are defined in each part. This part incorporates the safety related requirements of Programmable Controllers. Annex DD provides a cross reference between clauses of this standard and those of IEC 61010-1 or IEC 61131-2:2007. It has the status of a basic safety publication in accordance with IEC Guide 104.
This publication is to be read in conjunction with IEC 61010-1:2010.

Règles de sécurité pour appareils électriques de mesurage, de régulation et de laboratoire - Partie 2-201: Exigences particulières pour les équipements de commande

La CEI 60101-2-201:2013 spécifie l'ensemble des exigences de sécurité relatives aux équipements de commande (par exemple les automates programmables (AP)), aux composants des systèmes à commande distribuée, aux appareils d'E/S et à l'interface homme/machine. Les termes de sécurité d'usage général sont définis dans la CEI 61010-1. Des termes plus spécifiques sont définis dans chaque partie. Cette partie contient les exigences relatives à la sécurité des automates programmables. L'Annexe DD établit une référence croisée entre les articles de la présente norme et ceux de la CEI 61010-1 ou de la CEI 61131-2:2007. Elle a le statut d'une publication fondamentale de sécurité conformément au Guide CEI 104.
Cette publication doit être lue conjointement avec la CEI 61010-1:2010.

General Information

• Status: Published
• Publication Date: 24-Feb-2013
• ICS: 13.110 - Safety of machinery
• ICS: 17.020 - Metrology and measurement in general
• ICS: 19.020 - Test conditions and procedures in general
• Technical Committee: TC 65 - Industrial-process measurement, control and automation
• Drafting Committee: JWG 13 - TC 65/JWG 13
• Current Stage: DELPUB - Deleted Publication
• Completion Date: 24-Mar-2017

Relations

• Revised: IEC 61010-2-201:2017 - Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 2-201: Particular requirements for control equipment
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 61010-2-201
®

Edition 1.0 2013-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
BASIC SAFETY PUBLICATION
PUBLICATION FONDAMENTALE DE SÉCURITÉ
Safety requirements for electrical equipment for measurement, control, and
laboratory use –
Part 2-201: Particular requirements for control equipment

Règles de sécurité pour appareils électriques de mesurage, de régulation et de
laboratoire –
Partie 2-201: Exigences particulières pour les équipements de commande


IEC 61010-2-201:2013

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IEC 61010-2-201

®


Edition 1.0 2013-02




INTERNATIONAL



STANDARD




NORME



INTERNATIONALE
colour

inside



BASIC SAFETY PUBLICATION

PUBLICATION FONDAMENTALE DE SÉCURITÉ




Safety requirements for electrical equipment for measurement, control, and

laboratory use –

Part 2-201: Particular requirements for control equipment




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

laboratoire –


Partie 2-201: Exigences particulières pour les équipements de commande













INTERNATIONAL

ELECTROTECHNICAL

COMMISSION


COMMISSION

ELECTROTECHNIQUE

PRICE CODE
INTERNATIONALE

CODE PRIX XA


ICS 13.110; 17.020; 19.020; 25.040.40 ISBN 978-2-83220-588-4



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® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale

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– 2 – 61010-2-201 © IEC:2013
CONTENTS
FOREWORD . 5
INTRODUCTION . 7
1 Scope and object . 8
1.1.1 Equipment included in scope . 8
1.1.2 Equipment excluded from scope . 9
1.2.1 Aspects included in scope . 9
1.2.2 Aspects excluded from scope . 9
2 Normative references . 10
3 Terms and definitions . 10
4 Tests . 12
4.1 General . 12
4.3.2 State of equipment . 12
4.4 Testing in single fault condition . 12
5 Marking and documentation . 14
5.4.3 Equipment installation . 14
6 Protection against electric shock . 14
6.1.2 Exceptions . 14
6.2.1 General . 14
6.2.2 Examination . 14
6.2.3 Openings above parts that are hazardous live . 14
6.2.4 Openings for pre-set controls . 15
6.2.101 Accessibility of interfaces/ports/terminals . 15
6.2.102 Control equipment . 17
6.6.1 General . 20
6.6.2 Terminals for external circuits . 20
6.6.3 Circuits with terminals which are hazardous live . 20
6.6.4 Terminals for stranded conductors . 20
6.7.2 Insulation for mains circuits of overvoltage category II with a nominal
supply voltage up to 300 V . 22
6.7.3 Insulation for secondary circuits derived from mains circuits of
overvoltage category II up to 300 V . 24
6.7.101 Insulation for field wiring terminals of overvoltage category II with a
nominal voltage up to 1 000 V . 26
6.8.3 Test procedures . 26
6.10 Connection to the mains supply source and connections between parts of
equipment . 26
6.11 Disconnection from supply source . 27
7 Protection against mechanical hazards . 27
7.1.101 Open and panel mounted equipment . 27
7.2 Sharp edges . 27
7.3.3 Risk assessment for mechanical hazards to body parts . 27
7.3.4 Limitation of force and pressure. 28
7.3.5 Gap limitations between moving parts . 28
7.7 Expelled parts . 28
8 Resistance to mechanical stresses . 28
8.1.101 Open equipment . 28

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61010-2-201 © IEC:2013 – 3 –
8.1.102 Panel mounted equipment . 28
8.2.2 Impact test . 28
8.3 Drop test . 28
8.3.1 Equipment other than hand-held equipment and direct plug-in
equipment . 29
8.3.2 Hand-held equipment and direct plug-in equipment . 29
9 Protection against the spread of fire . 29
9.2 Eliminating or reducing the sources of ignition within the equipment . 29
9.3.2 Constructional requirements . 29
10 Equipment temperature limits and resistance to heat . 30
10.1 Surface temperature limits for protection against burns . 30
10.3 Other temperature measurements . 31
10.4.1 General . 31
10.4.2 Temperature measurement of heating equipment . 32
10.4.3 Equipment intended for installation in a cabinet or a wall . 32
10.5.2 Non-metallic enclosures . 33
11 Protection against hazards from fluids . 33
11.6 Specially protected equipment . 33
12 Protection against radiation, including laser sources, and against sonic and
ultrasonic pressure . 33
13 Protection against liberated gases and substances, explosion and implosion . 34
13.1 Poisonous and injurious gases and substances . 34
13.2.1 Components . 34
13.2.2 Batteries and battery charging . 34
14 Components and subassemblies . 34
14.101 Components bridging insulation . 34
14.101.1 Capacitors . 34
14.101.2 Surge surpressors . 34
14.102 Switching devices . 35
15 Protection by interlocks . 35
16 Hazards resulting from application . 35
17 Risk assessment . 35
Annexes . 35
Annex F (normative) Routine tests . 36
Annex L (informative) Index of defined terms . 38
Annex AA (informative) General approach to safety for control equipment . 39
Annex BB (informative) System drawing of isolation boundaries . 41
Annex CC (informative) Historical techniques for secondary circuits . 49
Annex DD (informative) Cross references between IEC 61010-2-201 and IEC 61010-
1:2010 or IEC 61131-2:2007 . 53
Bibliography . 54

Figure 101 – Typical interface/port diagram of control equipment. 16
Figure 102 – Requirements for insulation between separate circuits and between
circuits and accessible conductive parts . 21
Figure 103 – Mechanical hazards requirements for panel mounted equipment . 27
Figure 104 – Safety enclosure with HMI installed through a wall . 30

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– 4 – 61010-2-201 © IEC:2013
Figure 105 – Panel mounted HMI device extending through the wall of a cabinet . 33
Figure AA.1 – Control equipment access and safety concerns . 39
Figure BB.1 – Typical system enclosure layout . 42
Figure BB.2 – Simplified system schematic . 43
Figure BB.3 – Hazard situation of the control equipment . 44
Figure BB.4 – Application of the standard to the control equipment safety drawing . 45
Figure BB.5 – Reinforced insulation . 46
Figure BB.6 – Basic insulation . 47
Figure BB.7 – Reinforced insulation, basic insulation and limiting impedance . 48

Table 101 – Overload test circuit values . 13
Table 102 – Endurance test circuit values . 13
Table 103 – Operator accessibility for open and enclosed equipment . 16
Table 4 – Clearance and creepage distances for mains circuits of overvoltage category
II up to 300 V . 23
Table 5 – Test voltages for solid insulation between mains and between mains and
d
secondary circuits overvoltage category II up to 300 V . 24
Table 6 – Clearances and test voltages for secondary circuits derived from mains
circuits of overvoltage category II up to 300 V . 25
Table 104 – Minimum creepages and clearances in air of overvoltage category II up to
1 000 V at field-wiring terminals . 26
Table 105 – Drop tests . 29
Table 19 – Surface temperature limits, under normal conditions . 31
Table CC.1 – Limits of output current and output power for inherently limited power
sources . 51
Table CC.2 – Limits of output current, output power and ratings for over-current
protective devices for non-inherently limited power sources . 52
Table DD.1 – Cross-references between IEC 61010-2-201 and IEC 61010-1 or
IEC 61131-2 . 53

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61010-2-201 © IEC:2013 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

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

Part 2-201: Particular requirements for control 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
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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 61010-2-201 has been prepared by IEC technical committee 65:
Industrial-process measurement, control and automation.
The text of this standard is based on the following documents:
FDIS Report on voting
65/515/FDIS 65/521/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 Part 2-201 is intended to be used in conjunction with IEC 61010-1. It was established on
the basis of the third edition (2010). Consideration may be given to future editions of, or
amendments to, IEC 61010-1.

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This Part 2-201 supplements or modifies the corresponding clauses in IEC 61010-1 so as to
convert that publication into the IEC standard: Particular requirements for control 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.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
It has the status of a basic safety publication in accordance with IEC Guide 104.
A list of all parts in the IEC 61010 series, published under the general title Safety
requirements for electrical equipment for measurement, control and laboratory use, can be
found on the IEC website.
The committee has decided that the contents of this publication 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 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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61010-2-201 © IEC:2013 – 7 –
INTRODUCTION
This IEC 61010-2-201 document constitutes Part 2-201 of a planned series of standards on
industrial-process measurement, control and automation equipment.
This part specifies the complete safety requirements for control equipment (e.g.
programmable controller (PLC)), the components of Distributed Control Systems, I/O devices,
Human Machine Interface (HMI)).
Safety terms of general use are defined in IEC 61010-1. More specific terms are defined in
each part.
This part incorporates the safety related requirements of Programmable Controllers.
Annex DD provides a cross reference between clauses of this standard and those of
IEC 61010-1 or IEC 61131-2:2007.

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

Part 2-201: Particular requirements for control equipment



1 Scope and object
This clause of Part 1 is applicable, except as follows.
1.1.1 Equipment included in scope
Replacement:
This part of IEC 61010 specifies safety requirements and related verification tests for control
equipment of the following types:
– Programmable controllers (PLC and PAC);
– the components of Distributed Control Systems (DCS);
– the components of remote I/O – systems;
– industrial PC (computers) and Programming and Debugging Tools (PADTs);
– Human-Machine Interfaces (HMI);
– any product performing the function of control equipment and/or their associated
peripherals,
which have as their intended use the control and command of machines, automated
manufacturing and industrial processes, e.g. discrete and continuous control.
Components of the above named equipment and in the scope of this standard are:
– (auxiliary) stand-alone power supplies;
– peripherals such as digital and analogue I/O, remote-I/O;
– industrial network equipment.
Control equipment and their associated peripherals are intended to be used in an industrial
environment and may be provided as open or enclosed equipment.
NOTE 1 Control equipment intended also for use in other environments or for other purposes (example; for use in
building installations to control light or other electrical installations, or for use on cars, trains or ships) can have
additional conformity requirements defined by the safety standard(s) for these applications. These requirements
can involve as example: insulation, spacings and power restrictions.
NOTE 2 Computing devices and similar equipment within the scope of IEC 60950 (planned to be replaced by
IEC 62368) and conforming to its requirements are considered to be suitable for use with control equipment within
the scope of this standard. However, some of the requirements of IEC 60950 for resistance to moisture and liquids
are less stringent than those in IEC 61010-1:2010, 5.4.4 second paragraph.
Control equipment covered in this standard is intended for use in overvoltage category II
(IEC 60664-1) in low-voltage installations, where the rated equipment supply voltage does not
exceed a.c. 1 000 V r.m.s. (50/60 Hz), or d.c. 1 500 V.
NOTE 3 If equipment in the scope of this part is applied to overvoltage category III and IV installations, then the
requirements of Annex K of Part 1 apply.
The requirements of ISO/IEC Guide 51 and IEC Guide 104, as they relate to this Part, are
incorporated herein.

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61010-2-201 © IEC:2013 – 9 –
1.1.2 Equipment excluded from scope
Replacement:
This standard does not deal with aspects of the overall automated system, e.g. a complete
assembly line. Control equipment (e.g. DCS and PLC), their application program and their
associated peripherals are considered as components (components in this context are items
which perform no useful function by themselves) of an overall automated system.
Since control equipment (e.g. DCS and PLC) are component devices, safety considerations
for the overall automated system including installation and application are beyond the scope
of this standard. Refer to IEC 60364 series of standards or applicable national/local
regulations for electrical installation and guidelines.
1.2.1 Aspects included in scope
Replacement:
The purpose of the requirements of this standard is to ensure that all hazards to the operator,
service personnel and the surrounding area are
...