IEC 60519-1:2015

Safety in installations for electroheating and electromagnetic processing - Part 1: General requirements

IEC 60519-1:2015 specifies general safety requirements for industrial installations or equipment intended for electroheating (EH) and electroheating based treatment technologies as well as for electromagnetic processing of materials (EPM). This fifth edition cancels and replaces the fourth edition published in 2010. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) The title and scope of the standard has been expanded to include installations and equipment for electromagnetic processing of materials.
b) Terms and definitions as well as the list of normative references have been updated and completed with new items.
c) The requirements have been restructured.
d) Additional requirements for electric and magnetic fields, for touch currents as well as for optical radiation have been added.
e) New clauses addressing verification have been added.
f) New annexes specifying limits of exposure hazards for electric and magnetic fields, optical radiation, noise and vibration have been added.
g) New annexes on EMC, markings and warnings, guidelines for using this standard and information on the connection to ISO 13577-1 have been added.

Sécurité dans les installations destinées au traitement électrothermique et électromagnétique - Partie 1: Exigences générales

L'IEC 60519-1:2015 spécifie les exigences de sécurité générales relatives aux installations ou équipements industriels destinés à l'électrothermie (EH) et aux technologies de traitement basées sur l'électrothermie ainsi qu'au traitement électromagnétique des matériaux (EPM). Cette cinquième édition annule et remplace la quatrième édition, parue en 2010. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
a) Le titre et le domaine d'application de la norme ont été étendus pour inclure les installations et les équipements destinés au traitement électromagnétique des matériaux.
b) les équipements destinés au traitement électromagnétique des matériaux. Les termes et définitions, ainsi que la liste des références normatives, ont été mis à jour et complétés par de nouveaux éléments.
c) Les exigences ont été restructurées.
d) Des exigences supplémentaires relatives aux champs électriques et magnétiques, aux courants de contact, ainsi qu'aux rayonnements optiques, ont été ajoutées.
e) De nouveaux articles traitant de la vérification ont été ajoutés.
f) De nouvelles annexes spécifiant les limites des dangers d'exposition aux champs électriques et magnétiques, au rayonnement optique, au bruit et aux vibrations ont été ajoutées.
g) De nouvelles annexes sur la CEM, les marquages et avertissements, les lignes directrices pour l'utilisation de la présente norme et des informations concernant le lien avec l'ISO 13577-1 ont été ajoutées.

General Information

• Status: Published
• Publication Date: 09-Mar-2015
• ICS: 25.180.10 - Electric furnaces
• Technical Committee: TC 27 - Industrial electroheating and electromagnetic processing
• Drafting Committee: MT 18 - TC 27/MT 18
• Current Stage: DELPUB - Deleted Publication
• Start Date: 11-Mar-2020
• Completion Date: 30-Mar-2018

Relations

• Revises: IEC 60519-1:2010 - Safety in electroheating installations - Part 1: General requirements
• Effective Date: 05-Sep-2023
• Revised: IEC 60519-1:2020 - Safety in installations for electroheating and electromagnetic processing - Part 1: General requirements
• Effective Date: 05-Sep-2023
• Revises: IEC 60519-1:2010/COR1:2012 - Corrigendum 1 - Safety in electroheating installations - Part 1: General requirements
• Effective Date: 05-Sep-2023

Overview

IEC 60519-1:2015, titled Safety in Installations for Electroheating and Electromagnetic Processing – Part 1: General Requirements, is a crucial international standard developed by the International Electrotechnical Commission (IEC). This fifth edition supersedes the 2010 version, offering a technical revision that broadens the scope to include electromagnetic processing of materials alongside electroheating (EH) technologies.

The standard specifies comprehensive general safety requirements aimed at protecting personnel, equipment, and the environment in industrial applications using electroheating and electromagnetic processing. It introduces enhanced safety clauses relating to electric and magnetic fields, optical radiation, and new testing and verification protocols.

Key Topics

• Expanded Scope and Definitions
  The 2015 edition extends its coverage beyond electroheating to encompass electromagnetic processing installations and equipment. It updates terms, definitions, and normative references to include recent technological developments.

• Restructured Safety Requirements
  Requirements are systematically arranged to address hazards such as electrical shock, magnetic and electric fields, optical radiation, thermal effects, and mechanical risks.

• Protection Against Electric Shock
  Fundamental rules and advanced provisions ensure safe design and operation concerning basic protection, fault protection, touch current, and insulation, especially under high-frequency conditions.

• Control of Hazardous Fields and Radiations
  Specific measures manage risks associated with near-field magnetic and electric fields, UV and laser radiation, and other optical emissions to minimize exposure hazards.

• Risk Assessment and Ergonomics
  The standard advocates thorough risk assessments and includes ergonomic design guidelines to enhance operator safety and handling throughout installation lifecycle stages, including transport and storage.

• Verification and Testing Guidelines
  New clauses specify methods for verifying compliance with exposure limits, electrical safety, and protective measures through detailed testing and inspection procedures.

• Annexes on Exposure Limits and EMC
  Additional annexes provide limits for exposure to electromagnetic fields, optical radiation, noise, vibration, and electromagnetic compatibility (EMC), alongside guidelines for labeling, markings, and warnings.

Applications

IEC 60519-1:2015 is essential for manufacturers, engineers, and safety managers involved in:

• Designing and operating industrial electroheating installations such as resistance ovens, induction heaters, and dielectric heaters.
• Implementing electromagnetic processing equipment used in material treatment including drying, curing, and surface modification.
• Establishing safety protocols and hazard control measures in plants utilizing radio frequency (RF) and infrared (IR) heating technologies.
• Regulatory compliance and certification activities to meet international safety standards for electrothermal and electromagnetic processing systems.
• Developing safety training programs and user manuals that align with internationally recognized safety requirements.

By adopting this standard, organizations improve operational safety, reduce workplace hazards, and enhance equipment reliability in diverse sectors including manufacturing, food processing, chemical treatment, and materials engineering.

Related Standards

For comprehensive safety and compatibility in electroheating and electromagnetic processing, consider integrating IEC 60519-1:2015 with these relevant standards:

• ISO 13577-1: Provides guidelines on nomenclature and requirements for electroheating installations, referenced in IEC 60519-1.
• IEC 61000 Series (EMC standards): Addresses electromagnetic compatibility to reduce interference risks in installations.
• IEC 60335 Series: Covers safety requirements for household and similar electrical appliances, applicable to smaller-scale electroheating devices.
• IEC 60479 Series: Relates to the effects of current passing through the human body, supporting electric shock protection measures.
• IEC 60825: Pertains to laser safety, critical for installations involving laser-based electromagnetic processing.

Adhering to IEC 60519-1:2015 alongside these standards fosters an integrated safety framework for high-frequency, electrothermal, and electromagnetic equipment used in industrial environments.

---

By implementing the IEC 60519-1:2015 standard, industries can significantly mitigate risks associated with electroheating and electromagnetic processing, ensuring safety, compliance, and operational excellence worldwide.

Standards Content (Sample)

IEC 60519-1 ®
Edition 5.0 2015-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Safety in installations for electroheating and electromagnetic processing –
Part 1: General requirements
Sécurité dans les installations destinées au traitement électrothermique et
électromagnétique –
Partie 1: Exigences générales
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IEC 60519-1 ®
Edition 5.0 2015-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Safety in installations for electroheating and electromagnetic processing –

Part 1: General requirements
Sécurité dans les installations destinées au traitement électrothermique et

électromagnétique –
Partie 1: Exigences générales
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 25.180.10 ISBN 978-2-8322-2363-5

– 2 – IEC 60519-1:2015 © IEC 2015

CONTENTS
FOREWORD . 7

INTRODUCTION . 10

1 Scope and object . 11

1.1 Scope . 11

1.2 Object . 11

2 Normative references . 12

3 Terms, definitions and abbreviations . 15

3.1 General concepts . 15
3.2 Equipment and state of equipment . 17
3.3 Parts and accessories . 18
3.4 Safety related concepts . 19
3.5 Abbreviations . 20
4 Classification and sub-division . 21
4.1 Classification by process frequency . 21
4.2 Classification by voltage . 21
4.3 Sub-division of installation and equipment . 22
4.3.1 Subdivision into parts . 22
4.3.2 Hierarchy and structure of requirements . 25
4.4 Classification of hazards and risks . 25
4.4.1 Classification of hazards . 25
4.4.2 Classification of risks . 26
4.4.3 Limits . 26
5 Risk assessment . 27
6 General provisions. 27
6.1 Basic considerations . 27
6.2 Significant hazards . 28
6.3 Physical environment and operating conditions for the installation as such
and electrical equipment outside the processing equipment . 28
6.4 Physical environment and operating conditions for electrical equipment
inside the processing equipment . 29
6.5 Power supply . 30
6.6 Access . 30

6.7 Ergonomic aspects . 31
6.8 Transport and storage . 31
6.9 Provisions for handling. 31
6.10 Consumables and replaceable parts . 31
7 Protection against electric shock . 31
7.1 General . 31
7.2 Fundamental rule of protection . 32
7.3 General provisions . 32
7.4 Basic protection . 33
7.5 Provisions for single fault protection . 34
7.6 Protective equipotential bonding . 35
7.7 Additional provisions for fault protection for frequencies above 200 Hz . 37
7.8 Protective conductor currents . 38
7.9 Touch current and touch voltage . 39

7.10 Conductors and insulations at high temperature . 39

7.11 Non-electric faults . 40

8 Protection against hazards caused by electric or magnetic nearfields . 40

8.1 General . 40

8.2 Magnetic fields . 40

8.3 Local electric fields . 41

8.4 Requirements related to barriers and screens . 41

8.5 Requirements related to objects worn, carried or held by persons . 42

9 Protection against hazards from radiation . 43

9.1 General . 43
9.2 Installation or equipment generating ionizing radiation . 43
9.3 Ultraviolet radiation . 43
9.4 Visible and infrared radiation . 44
9.5 Laser sources . 44
10 Protection against hazards from thermal influences . 44
10.1 General . 44
10.2 Surface temperature limits for protection against burn . 45
10.3 Hazards caused by working conditions . 45
10.4 Heat resistance of components . 45
10.5 Cooling . 46
10.6 Over-temperature protection . 47
11 Protection against hazards from fire . 48
12 Protection against hazards from fluids . 48
12.1 General . 48
12.2 Poisonous and injurious gases and substances . 49
12.3 Explosion and implosion of pressurised parts . 49
13 Specific requirements for components and subassemblies . 49
13.1 General . 49
13.2 Electrical equipment and conductors . 50
13.3 Connection to the electrical supply network and internal connections . 50
13.4 Isolation and switching . 51
13.5 Sensors and actuators safeguarding moving parts . 51
13.6 Motors . 51
13.7 Non electric-heating means . 52

13.8 Lighting . 52
13.9 Structural parts and stability. 52
13.10 Doors, windows and other openings . 52
14 Control of the installation or equipment . 52
14.1 General . 52
14.2 Operator control unit . 52
14.3 Emergency stop . 53
14.4 Control systems and their functions . 53
14.5 Controlgear . 54
14.6 Protective devices . 55
14.7 Over-temperature protective device . 56
14.8 Overpressure safety device . 56
15 Protection against mechanical hazards . 57
16 Protection against hazards resulting from use . 58

– 4 – IEC 60519-1:2015 © IEC 2015

16.1 Particular hazards in processing of food, feed, cosmetics and similar

intended for human or animal consumption . 58

16.2 Radio frequency interference . 58

16.3 Particular hazards in electroheating and electromagnetic processing . 58

16.4 Combination equipment . 58

17 Protection against other hazards . 58

17.1 General . 58

17.2 Sonic, infra- and ultra-sonic pressure . 59

18 Verification and testing . 59

18.1 General . 59
18.2 Performing measurements and tests . 61
18.3 Verification of conformity with limits for electric or magnetic fields . 61
18.4 Examination of drawings or calculations . 61
18.5 Visual inspection . 61
18.6 Measurements . 62
18.6.1 Insulation resistance measurement up to 200 Hz . 62
18.6.2 Measurement of electric or magnetic fields . 62
18.6.3 Touch current measurement . 62
18.6.4 Ionising radiation measurement . 62
18.6.5 Measurement of non-coherent optical irradiation . 63
18.6.6 Measurement of coherent optical radiation including emission from
LEDs . 63
18.6.7 Surface temperature measurement . 63
18.6.8 Sound level measurement . 63
18.7 Functional tests . 64
18.7.1 Protection by automatic disconnection of supply . 64
18.7.2 Voltage test . 64
18.7.3 Dielectric test . 64
18.7.4 Accessibility of live parts . 64
18.8 Numerical modelling . 64
18.8.1 General . 64
18.8.2 Numerical assessment of electric or magnetic fields . 64
18.8.3 Numerical assessment of optical radiation . 65
19 Information for use . 65
19.1 General requirements . 65

19.2 Location and nature of the information for use . 65
19.3 Signalling and warning devices . 66
19.4 Markings, pictograms, written warnings . 66
19.5 Instruction handbook(s) / installation, commissioning, operation,
maintenance, and decommissioning manual(s) . 67
Annex A (informative) List of significant hazards . 71
Annex B (informative) Electric and magnetic fields, touch currents – limits of
exposure hazards . 76
B.1 Overview and motivation . 76
B.1.1 General . 76
B.1.2 Basic concepts . 76
B.1.3 Hazard sources and hazard effects . 76
B.1.4 Frequency dependence . 77
B.2 Static magnetic fields . 77

B.3 Time varying magnetic, electric and electromagnetic fields . 78

B.3.1 Basic restrictions between 1 Hz and 100 kHz. 78

B.3.2 Basic restrictions between 100 kHz and 300 MHz . 79

B.3.3 Heated worn objects . 80

B.4 Touch currents . 80

B.5 Touch voltages . 80

B.5.1 Extra-low voltage (ELV) below 100 Hz . 80

B.5.2 Extra-low voltage (ELV) above 100 Hz . 81

B.6 Classification of exposure . 81

B.6.1 General . 81

B.6.2 Exempt group . 81
B.6.3 Risk group 1 (low risk) . 81
B.6.4 Risk group 2 (moderate risk) . 82
B.6.5 Risk group 3 (high risk) . 82
Annex C (informative) Optical radiation – limits of exposure hazards . 83
C.1 Non-coherent radiation limits . 83
C.2 Radiation from laser sources and LEDs . 84
C.3 Non-coherent optical radiation – risk groups . 84
C.3.1 General . 84
C.3.2 Exempt group . 84
C.3.3 Risk group 1 (low risk) . 85
C.3.4 Risk group 2 (moderate risk) . 85
C.3.5 Risk group 3 (high risk) . 85
C.3.6 Pulsed equipment . 85
Annex D (informative) Limits for exposure hazards – noise and vibration . 86
D.1 General . 86
D.2 Sonic noise . 86
D.3 Ultrasonic pressure . 86
D.4 Infrasound . 86
D.5 Vibration . 87
Annex E (normative) Provisions concerning EMC . 88
E.1 General . 88
E.2 Requirements . 88
Annex F (normative) Marking and warning . 89
F.1 EMF hazard zones . 89
F.2 Touch currents and surfaces . 89
F.3 Optical radiation hazards . 90
F.4 Symbols and signs used for markings and warnings. 90
Annex G (informative) Guidelines on using this standard . 92
Annex H (informative) Connection with ISO 13577 series . 93
Bibliography . 94

Figure 1 – Block diagram of a typical EH or EPM installation . 23
Figure B.1 – Illustration of the basic restrictions from Tables B.3 and B.4 . 79
Figure F.1 – Examples of marking for magnetic and electric fields . 89
Figure F.2 – Examples of marking for touch current . 89
Figure F.3 – Example of marking for infrared radiation . 90

– 6 – IEC 60519-1:2015 © IEC 2015

Table 1 – Equipment, process frequency and safety-relevant frequency limits . 21

Table 2 – Typical EH or EPM installation – listing of parts and references . 24

Table 3 – Safety classification scheme for exposure risks . 26

Table 4 – Thermal protective measures . 47

Table 5 – Methods for the verification of requirements . 59

Table A.1 – List of hazards dealt with in this standard . 71

Table B.1 – ICNIRP and IEEE limits of exposure to static magnetic fields . 77

Table B.2 – ICNIRP basic restrictions for internal electric fields in human tissue in
the frequency range between 1 Hz and 10 MHz . 78
Table B.3 – IEEE basic restrictions for internal electric fields in human tissue in the
frequency range between 0,153 Hz and 3 GHz . 78
Table B.4 – Specific absorption rate (SAR) and power flux density basic restrictions
between 100 kHz and 300 MHz . 80
Table B.5 – ICNIRP reference levels for time-varying touch currents . 80
Table C.1 – Exposure limits in the ultraviolet, visible and infrared, irradiance based
values . 83
Table C.2 – Exposure limits in the infrared, radiance based values . 83
Table C.3 – Risk group classification of equipment by emission of optical radiation . 84
Table F.4 – Examples of symbols and signs for use in EH or EPM installations . 91

INTERNATIONAL ELECTROTECHNICAL COMMISSION

____________
SAFETY IN INSTALLATIONS FOR ELECTROHEATING

AND ELECTROMAGNETIC PROCESSING –

Part 1: General requirements
FOREWORD
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International Standard IEC 60519-1 has been prepared by IEC technical committee 27:
Industrial electroheating and electromagnetic processing.
This fifth edition cancels and replaces the fourth edition published in 2010. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) The title and scope of the standard has been expanded to include installations and
equipment for electromagnetic processing of materials.
b) Terms and definitions as well as the list of normative references have been updated and
completed with new items.
c) The requirements have been restructured.

– 8 – IEC 60519-1:2015 © IEC 2015

d) Additional requirements for electric and magnetic fields, for touch currents as well as for

optical radiation have been added.

e) New clauses addressing verification have been added.

f) New annexes specifying limits of exposure hazards for electric and magnetic fields, optical

radiation, noise and vibration have been added.

g) New annexes on EMC, markings and warnings, guidelines for using this standard and

information on the connection to ISO 13577-1 have been added.

The text of this standard is based on the following documents:

FDIS Report on voting
27/947/FDIS 27/951/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.
A list of all parts in the IEC 60519 series, published under the general title Safety in
installations for electroheating and electromagnetic processing, can be found on the IEC
website.
Future standards in this series will carry the new general title as cited above. Titles of existing
standards in this series will be updated at the time of the next edition.
In this standard, the following print types are used:
– requirements and definitions: in roman type;
– NOTES: in smaller roman type;
– terms used throughout this standard which have been defined in Clause 3: in bold type.

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.
– 10 – IEC 60519-1:2015 © IEC 2015

INTRODUCTION
This fifth edition of IEC 60519-1 is a product safety publication and is intended to:

– include all types of installations or equipment that are in the scope of IEC TC 27 dealing

with industrial electroheating (EH) and electromagnetic processing of materials

(EPM);
– cover in these General Requirements all hazards that are relevant for more than one type

of equipment or installation individually dealt with in Particular Requirements;

– give requirements on electrical safety, touch currents, electric fields, magnetic fields and

radiation, thus mirroring the broad scope of installations covered and their processing

frequency;
– give means for verification of the requirements;
– make extensive use of the standards developed by IEC committees with horizontal or
group safety functions and of relevant ISO standards by reference, including publications
developed by ISO/TC 244 (more information is given in Annex H), in compliance with
IEC Guide 104;
– be useable like a type-C standard in the sense of ISO 12100;
– include all material, references and requirements suitable for risk assessment and list
significant hazards.
This standard adresses mainly manufacturers making made-to-order equipment on a single
project base. The manufacturer is well aware that it is his responsibility to make equipment
safe through adequate risk reduction and it is the responsibility of the user to assess
exposure of the operator in line with applicable health and safety regulations. Looking at
projects providing single pieces of equipment or single installations, this clear division of
responsibilities tends to blur, caused by inter alia
– development of the process (normal operation) through the manufacturer and user,
– shared definition of working procedures for the operator by the manufacturer and user,
– the scope of delivery often including all protective means,
– individual sales contracts where users require an assessment of exposure through the
manufacturer.
Thus this standards provides information on exposure hazards and limits where relevant, well
aware that this is exceeding the scope of a product standard.

SAFETY IN INSTALLATIONS FOR ELECTROHEATING

AND ELECTROMAGNETIC PROCESSING –

Part 1: General requirements
1 Scope and object
1.1 Scope
This part of IEC 60519 specifies general safety requirements for industrial installations or
equipment intended for electroheating (EH) and electroheating based treatment
technologies as well as for electromagnetic processing of materials (EPM).
The requirements are applicable to industrial installations or equipment with the possible use
as:
– equipment for direct and indirect resistance heating,
– equipment for electric resistance trace heating,
– equipment for induction heating,
– equipment using the effect of electromagnetic forces on materials,
– equipment for arc heating, including submerged arc heating,
– equipment for electroslag remelting,
– equipment for plasma heating and plasma surface treatment,
– equipment for microwave heating,
– equipment for dielectric heating,
– equipment using electron guns,
– equipment for infrared radiation heating,
– equipment for laser heating.
NOTE The list presents typical examples of equipment and its applications and is not exhaustive.
The overall safety requirements for the various types of EH or EPM equipment and
installations result from the joint application of the General Requirements specified in this
standard and Particular Requirements covering specific types of installations or equipment
(guidelines are given in Annex G). If no Particular Requirement is covering a specific

installation or equipment, the General Requirements are applicable as such.
This standard does not apply to equipment and appliances within the scope of:
– IEC 60079 series – i.e. equipment or installations intended for use in potentially explosive
atmospheres;
– IEC 60335 series, – i.e. household, commercial and similar electrical appliances, including
room heating;
– IEC 60601 series – i.e. medical electrical equipment,
– IEC 60974 series – i.e. arc welding equipment,
– IEC 61010 series – i.e. equipment for laboratory use.
1.2 Object
The requirements refer to the complete life cycle of the installation or equipment from design
through commissioning, operation, maintenance, inspection, to decommissioning. They cover

– 12 – IEC 60519-1:2015 © IEC 2015

the safety of persons and protection of the environment during normal operation and under

single-fault condition.
This standard presumes that the installation or equipment is operated and maintained only by

personnel consisting of skilled or instructed persons.

This standard is intended for verifying that the EH or EPM equipment or installation meets

the requirements of this standard through design, site acceptance tests, routine tests or

inspection.
This standard is not providing requirements for type testing.

NOTE Industrial equipment covered by this standard is typically produced as a single unit or a very small number
of units.
2 Normative references
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.
IEC 60071-1, Insulation co-ordination – Part 1: Definitions, principles and rules
IEC 60204-1:2005, Safety of machinery – Electrical equipment of machines – Part 1: General
requirements
IEC 60204-1:2005/AMD1:2008
IEC 60204-11:2000, Safety of machinery – Electrical equipment of machines – Part 11:
Requirements for HV equipment for voltages above 1 000 V a.c. or 1 500 V d.c. and not
exceeding 36 kV
IEC 60228, Conductors of insulated cables
IEC 60335-1:2010, Household and similar electrical appliances – Safety – Part 1: General
requirements
IEC 603355-1:2010/AMD1:2013
IEC 60335-2-24, Household and similar electrical appliances – Safety – Part 2-24: Particular
requirements for refrigerating appliances, ice-cream appliances and ice makers

IEC 60335-2-89, Household and similar electrical appliances – Safety – Part 2-89: Particular
requirements for commercial refrigerating appliances with an incorporated or remote
refrigerant unit or compressor
IEC 60364-1:2005, Low-voltage electrical insta
...