Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 1: General requirements

IEC 61010-1:2010 specifies general safety requirements for the following types of electrical equipment and their accessories, wherever they are intended to be used.
a) Electrical test and measurement equipment
b) Electrical industrial process-control equipment c) Electrical laboratory equipment
This third edition cancels and replaces the second edition published in 2001. It constitutes a technical revision. This edition includes the following significant changes from the second edition, as well as numerous other changes.
- The scope of the standard has been expanded to include all locations where these products may be used, so that both professional and non-professional versions of these products are within the scope.
- The requirements for testing and measuring circuits (in various subclauses and the entirety of Clause 16) have been removed and included in a particular standard IEC 61010-2-030.
- Insulation requirements (6.7) have been completely rewritten.
- Additional requirements for protection against mechanical HAZARDS (Clause 7) have been included.
- Surface temperature limits (Clause 10) have been modified to conform to the limits of EN 563.
- Radiation requirements (Clause 12) have been modified, and take into account a distinction between intended emission and unintended emission.
- Requirements for reasonably foreseeable misuse and ergonomic aspects have been added (Clause 16).
- A new clause (Clause 17) has been added to deal with HAZARDS and environments not covered by the standard, along with a new informative annex (Annex J) dealing with RISK assessment.
- A new informative annex (Annex E) addresses methods of reducing the POLLUTION DEGREE of a micro-environment.
- Requirements for the qualification of coatings for protection against POLLUTION have been added (Annex H).
- A new informative annex (Annex I) has been added to further explain how to determine the WORKING VOLTAGE of a MAINS CIRCUIT.
The contents of the corrigendum 1 of May 2011, the interpretation sheet 1 of February 2013 and the corrigendum 2 of October 2013 have been included in this copy.

Règles de sécurité pour appareils électriques de mesurage, de régulation et de laboratoire - Partie 1: Exigences générales

La CEI 61010-1:2010 spécifie les exigences générales de sécurité pour les types suivants d'appareils électriques et leurs accessoires où qu'ils soient destinés à être utilisés.
a) Appareils électriques d'essai et de mesurage
b) Appareils électriques de contrôle de procédés industriels
c) Appareils électriques de laboratoire
Cette troisième édition annule et remplace la seconde édition parue en 2001. Elle constitue une révision technique. Les principales modifications, parmi de nombreuses autres modifications, de cette troisième édition par rapport à la seconde édition sont les suivantes:
- Le domaine d'application de la présente norme a été élargi à tous les usages de ces appareils, y compris les appareils destinés aux non professionnels.
- Les exigences pour les circuits de test et de mesure (présents dans différents paragraphes ainsi que dans l'Article 16 en entier) ont été supprimées de la présente norme et intégrées dans la norme CEI 61010-2-030.
- Les exigences d'isolation (6.7) ont été complètement réécrites.
- Des exigences supplémentaires pour la protection contre les RISQUES mécaniques (Article 7) ont été ajoutées.
- Les limites de température des surfaces (Article 10) ont été modifiées afin d'être conformes aux limites de la norme EN 563.
- Les exigences contre les radiations (Article 12) ont été modifiées et distinguent désormais les émissions prévues des émissions involontaires.
- Les exigences liées aux MAUVAIS USAGES RAISONNABLEMENT PREVISIBLES et aux aspects ergonomiques ont été ajoutées (Article 16).
- Un nouvel article (Article 17) a été ajouté pour faire face aux DANGERS et environnements non couverts par la présente norme ainsi qu'une nouvelle annexe informative (Annexe J) traitant de l'appréciation du RISQUE.
- Une nouvelle annexe informative (Annexe E) traite des méthodes de réduction du DEGRE DE POLLUTION d'un microenvironnement.
- Les exigences pour la qualification des revêtements enrobant pour la protection contre la POLLUTION ont été ajoutées (Annexe H).
- Une nouvelle annexe informative (Annexe I) informative a été ajoutée afin de mieux expliquer comment connaître la TENSION DE SERVICE d'un CIRCUIT RESEAU.
Le contenu du corrigendum de mai 2011, la feuille d'interprétation 1 de février 2013 et du corrigendum 2 d'octobre 2013 a été pris en considération dans cet exemplaire.

General Information

Status
Published
Publication Date
09-Jun-2010
Current Stage
PPUB - Publication issued
Start Date
10-Jun-2010
Completion Date
10-Jun-2010
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IEC 61010-1
Edition 3.0 2010-06
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 1: General requirements
Règles de sécurité pour appareils électriques de mesurage, de régulation et
de laboratoire –
Partie 1: Exigences générales
IEC 61010-1:2010
---------------------- Page: 1 ----------------------
THIS PUBLICATION IS COPYRIGHT PROTECTED
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---------------------- Page: 2 ----------------------
IEC 61010-1
Edition 3.0 2010-06
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 1: General requirements
Règles de sécurité pour appareils électriques de mesurage, de régulation et
de laboratoire –
Partie 1: Exigences générales
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX
ICS 19.080; 71.040.10 ISBN 978-2-88910-987-6
® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 3 ----------------------
TC 66/Publication 61010-1 (2010), Third edition/I-SH 01
SAFETY REQUIREMENTS FOR ELECTRICAL EQUIPMENT
FOR MEASUREMENT, CONTROL, AND LABORATORY USE –
Part 1: General requirements
INTERPRETATION SHEET 1

This interpretation sheet has been prepared by IEC technical committee 66: Safety of

measuring, control and laboratory equipment.
The text of this interpretation sheet is based on the following documents:
ISH Report on voting
66/497A/ISH 66/505/RVD

Full information on the voting for the approval of this interpretation sheet can be found in the

report on voting indicated in the above table.
___________

IEC 61010-1:2010 contains a requirement in 6.8.3.1 pertaining to voltage testers for type tests

as follows:
“The generator shall be able to supply a power of at least 500 VA.”
This has given rise to the following questions:

How does one interpret the requirement for voltage testers in 6.8.3.1 of IEC 61010-1:2010?

Specifically, this subclause requires that “The generator shall be able to supply a power of at

least 500 VA.” Does this requirement apply throughout the rated output range of the voltage

tester? What is meant by the word “generator”? Is the “generator” the power supply within the

voltage tester, or the voltage tester output, or something else?
Interpretation:

“A voltage tester used for type tests must be able to deliver at least 500 VA at its full-rated

output voltage. It does not necessarily need to deliver 500 VA if set for lower voltages.

For example, a voltage tester that can deliver 100 mA at any test output voltage up to 5 000 V

(and a current corresponding to 500 VA above 5 000 V) would meet the requirement.

The requirements for voltage testers used for routine (production line) tests are included in

Annex F. The requirements of 6.8.3.1 do not apply to these voltage testers.”
February 2013 ICS 19.080, 71.040.10 French text overleaf
---------------------- Page: 4 ----------------------
– 2 – 61010-1 © IEC:2010
CONTENTS

FOREWORD.........................................................................................................................10

INTRODUCTION...................................................................................................................13

1 Scope and object............................................................................................................14

1.1 Scope....................................................................................................................14

1.1.1 Equipment included in scope .....................................................................14

1.1.2 Equipment excluded from scope ................................................................14

1.1.3 Computing equipment................................................................................15

1.2 Object ...................................................................................................................15

1.2.1 Aspects included in scope .........................................................................15

1.2.2 Aspects excluded from scope ....................................................................15

1.3 Verification ............................................................................................................15

1.4 Environmental conditions ......................................................................................16

1.4.1 Normal environmental conditions...............................................................16

1.4.2 Extended environmental conditions ...........................................................16

2 Normative references .....................................................................................................16

3 Terms and definitions .....................................................................................................18

3.1 Equipment and states of equipment.......................................................................18

3.2 Parts and accessories ...........................................................................................19

3.3 Quantities..............................................................................................................19

3.4 Tests.....................................................................................................................20

3.5 Safety terms..........................................................................................................20

3.6 Insulation ..............................................................................................................22

4 Tests ..............................................................................................................................23

4.1 General .................................................................................................................23

4.2 Sequence of tests .................................................................................................24

4.3 Reference test conditions ......................................................................................24

4.3.1 Environmental conditions...........................................................................24

4.3.2 State of equipment ....................................................................................24

4.4 Testing in SINGLE FAULT CONDITION .........................................................................26

4.4.1 General .....................................................................................................26

4.4.2 Application of fault conditions ....................................................................26

4.4.3 Duration of tests ........................................................................................28

4.4.4 Conformity after application of fault conditions...........................................29

5 Marking and documentation............................................................................................30

5.1 Marking .................................................................................................................30

5.1.1 General .....................................................................................................30

5.1.2 Identification..............................................................................................30

5.1.3 MAINS supply .............................................................................................30

5.1.4 Fuses ........................................................................................................32

5.1.5 TERMINALS, connections and operating devices..........................................33

5.1.6 Switches and circuit-breakers ....................................................................33

5.1.7 Equipment protected by DOUBLE INSULATION or REINFORCED

INSULATION.................................................................................................34

5.1.8 Field-wiring TERMINAL boxes ......................................................................34

5.2 Warning markings .................................................................................................34

5.3 Durability of markings............................................................................................34

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61010-1 © IEC:2010 – 3 –

5.4 Documentation ......................................................................................................35

5.4.1 General .....................................................................................................35

5.4.2 Equipment RATINGS....................................................................................35

5.4.3 Equipment installation ...............................................................................36

5.4.4 Equipment operation..................................................................................36

5.4.5 Equipment maintenance and service .........................................................37

5.4.6 Integration into systems or effects resulting from special conditions ..........37

6 Protection against electric shock ....................................................................................37

6.1 General .................................................................................................................37

6.1.1 Requirements ............................................................................................37

6.1.2 Exceptions.................................................................................................38

6.2 Determination of ACCESSIBLE parts.........................................................................38

6.2.1 General .....................................................................................................38

6.2.2 Examination ..............................................................................................38

6.2.3 Openings above parts that are HAZARDOUS LIVE .........................................39

6.2.4 Openings for pre-set controls ....................................................................39

6.3 Limit values for ACCESSIBLE parts...........................................................................39

6.3.1 Levels in NORMAL CONDITION.......................................................................39

6.3.2 Levels in SINGLE FAULT CONDITION...............................................................40

6.4 Primary means of protection..................................................................................43

6.4.1 General .....................................................................................................43

6.4.2 ENCLOSURES and PROTECTIVE BARRIERS......................................................43

6.4.3 BASIC INSULATION .......................................................................................43

6.4.4 Impedance.................................................................................................43

6.5 Additional means of protection in case of SINGLE FAULT CONDITIONS .......................43

6.5.1 General .....................................................................................................43

6.5.2 PROTECTIVE BONDING..................................................................................44

6.5.3 SUPPLEMENTARY INSULATION and REINFORCED INSULATION ............................47

6.5.4 PROTECTIVE IMPEDANCE ..............................................................................47

6.5.5 Automatic disconnection of the supply .......................................................48

6.5.6 Current- or voltage-limiting device .............................................................48

6.6 Connections to external circuits.............................................................................48

6.6.1 General .....................................................................................................48

6.6.2 TERMINALS for external circuits...................................................................49

6.6.3 Circuits with TERMINALS which are HAZARDOUS LIVE.....................................49

6.6.4 TERMINALS for stranded conductors ............................................................49

6.7 Insulation requirements .........................................................................................50

6.7.1 The nature of insulation .............................................................................50

6.7.2 Insulation for MAINS CIRCUITS of OVERVOLTAGE CATEGORY II with a

nominal supply voltage up to 300 V ...........................................................52

6.7.3 Insulation for secondary circuits derived from MAINS CIRCUITS of

OVERVOLTAGE CATEGORY II up to 300 V .......................................................56

6.8 Procedure for voltage tests....................................................................................61

6.8.1 General .....................................................................................................61

6.8.2 Humidity preconditioning ...........................................................................62

6.8.3 Test procedures ........................................................................................63

6.9 Constructional requirements for protection against electric shock..........................63

6.9.1 General .....................................................................................................63

6.9.2 Insulating materials ...................................................................................64

---------------------- Page: 6 ----------------------
– 4 – 61010-1 © IEC:2010

6.9.3 Colour coding ............................................................................................64

6.10 Connection to the MAINS supply source and connections between parts of

equipment .............................................................................................................64

6.10.1 MAINS supply cords....................................................................................64

6.10.2 Fitting of non-detachable MAINS supply cords.............................................65

6.10.3 Plugs and connectors ................................................................................66

6.11 Disconnection from supply source .........................................................................67

6.11.1 General .....................................................................................................67

6.11.2 Exceptions.................................................................................................67

6.11.3 Requirements according to type of equipment ...........................................67

6.11.4 Disconnecting devices ...............................................................................68

7 Protection against mechanical HAZARDS..........................................................................69

7.1 General .................................................................................................................69

7.2 Sharp edges..........................................................................................................69

7.3 Moving parts .........................................................................................................69

7.3.1 General .....................................................................................................69

7.3.2 Exceptions.................................................................................................69

7.3.3 RISK assessment for mechanical HAZARDS to body parts ............................70

7.3.4 Limitation of force and pressure.................................................................71

7.3.5 Gap limitations between moving parts .......................................................72

7.4 Stability .................................................................................................................74

7.5 Provisions for lifting and carrying...........................................................................75

7.5.1 General .....................................................................................................75

7.5.2 Handles and grips......................................................................................75

7.5.3 Lifting devices and supporting parts ..........................................................75

7.6 Wall mounting .......................................................................................................76

7.7 Expelled parts .......................................................................................................76

8 Resistance to mechanical stresses .................................................................................76

8.1 General .................................................................................................................76

8.2 ENCLOSURE rigidity tests ........................................................................................77

8.2.1 Static test ..................................................................................................77

8.2.2 Impact test ................................................................................................77

8.3 Drop test ...............................................................................................................79

8.3.1 Equipment other than HAND-HELD EQUIPMENT and DIRECT PLUG-IN

EQUIPMENT .................................................................................................79

8.3.2 HAND-HELD EQUIPMENT and DIRECT PLUG-IN EQUIPMENT................................79

9 Protection against the spread of fire ...............................................................................79

9.1 General .................................................................................................................79

9.2 Eliminating or reducing the sources of ignition within the equipment......................81

9.3 Containment of fire within the equipment, should it occur ......................................81

9.3.1 General .....................................................................................................81

9.3.2 Constructional requirements ......................................................................81

9.4 Limited-energy circuit ............................................................................................84

9.5 Requirements for equipment containing or using flammable liquids .......................85

9.6 Overcurrent protection...........................................................................................85

9.6.1 General .....................................................................................................85

9.6.2 PERMANENTLY CONNECTED EQUIPMENT .........................................................86

9.6.3 Other equipment........................................................................................86

10 Equipment temperature limits and resistance to heat......................................................86

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61010-1 © IEC:2010 – 5 –

10.1 Surface temperature limits for protection against burns .........................................86

10.2 Temperatures of windings .....................................................................................87

10.3 Other temperature measurements .........................................................................87

10.4 Conduct of temperature tests ................................................................................88

10.4.1 General .....................................................................................................88

10.4.2 Temperature measurement of heating equipment ......................................88

10.4.3 Equipment intended for installation in a cabinet or a wall...........................88

10.5 Resistance to heat ................................................................................................89

10.5.1 Integrity of CLEARANCES and CREEPAGE DISTANCES......................................89

10.5.2 Non-metallic ENCLOSURES ..........................................................................89

10.5.3 Insulating material .....................................................................................89

11 Protection against HAZARDS from fluids ...........................................................................90

11.1 General .................................................................................................................90

11.2 Cleaning................................................................................................................90

11.3 Spillage .................................................................................................................91

11.4 Overflow................................................................................................................91

11.5 Battery electrolyte .................................................................................................91

11.6 Specially protected equipment...............................................................................91

11.7 Fluid pressure and leakage ...................................................................................91

11.7.1 Maximum pressure ....................................................................................91

11.7.2 Leakage and rupture at high pressure .......................................................92

11.7.3 Leakage from low-pressure parts...............................................................92

11.7.4 Overpressure safety device .......................................................................93

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

ultrasonic pressure .........................................................................................................93

12.1 General .................................................................................................................93

12.2 Equipment producing ionizing radiation .................................................................93

12.2.1 Ionizing radiation .......................................................................................93

12.2.2 Accelerated electrons ................................................................................94

12.3 Ultraviolet (UV) radiation .......................................................................................94

12.4 Microwave radiation ..............................................................................................95

12.5 Sonic and ultrasonic pressure ...............................................................................95

12.5.1 Sound level ...............................................................................................95

12.5.2 Ultrasonic pressure ...................................................................................95

12.6 Laser sources........................................................................................................96

13 Protection against liberated gases and substances, explosion and implosion .................96

13.1 Poisonous and injurious gases and substances .....................................................96

13.2 Explosion and implosion........................................................................................96

13.2.1 Components ..............................................................................................96

13.2.2 Batteries and battery charging ...................................................................97

13.2.3 Implosion of cathode ray tubes ..................................................................97

14 Components and subassemblies ....................................................................................97

14.1 General .................................................................................................................97

14.2 Motors...................................................................................................................99

14.2.1 Motor temperatures ...................................................................................99

14.2.2 Series excitation motors ............................................................................99

14.3 Overtemperature protection devices ......................................................................99

14.4 Fuse holders .........................................................................................................99

14.5 MAINS voltage selection devices ..........................................................................100

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