IEC 60519-1:2010

Safety in electroheating installations - Part 1: General requirements

IEC 60519-1:2010 specifies the general safety requirements applicable to industrial electroheating installations. This fourth edition cancels and replaces the third edition published in 2003. It constitutes a technical revision. The main technical changes with respect to the previous edition are as follows:
- scope and object have been modified, voltage limits and classification removed;
- terms/definitions, normative references and bibliography have been updated and completed;
- Clause 4 on classification of equipment according to process frequency has been modified;
- Clause 5 (General requirements) has been redrafted and new provisions have been added (e.g. relating to single fault conditions and EMF issues), following the recommendations of IEC Guide 104;
- Clause 8 has been redrafted, the contents of subclauses 8.2 and 8.3 has been moved to a new normative Annex A and 8.4 has been deleted;
- a new Clause 12 (Protection against other hazards) has been added;
- clauses dealing with marking and documentation have been amended.
The French version of this standard has not been voted upon. The contents of the corrigendum of November 2012 have been included in this copy.

Sécurité dans les installations électrothermiques - Partie 1: Exigences générales

La CEI 60519-1:2010 spécifie les exigences générales de sécurité applicables aux installations électrothermiques industrielles. Cette quatrième édition annule et remplace la troisième édition parue en 2003. Elle constitue une révision technique. Dans cette quatrième édition de la CEI 60519-1, les modifications techniques significatives par rapport à l'édition antérieure sont les suivantes:
- le domaine d'application et l'objet ont été modifiés;
- les limites de tension et la classification ont été supprimées;
- les termes/définitions, les références normatives et la bibliographie ont été mis à jour et complétés;
- l'Article 4 relatif à la classification de l'équipement conformément à la fréquence du processus a été modifié;
- l'Article 5 (Exigences générales) a été remanié et de nouvelles dispositions ont été ajoutées (par exemple, concernant les conditions de premier défaut et les questions de champs électromagnétiques), suivant les recommandations du Guide 104 de la CEI;
- L'Article 8 a été révisé, le contenu des paragraphes 8.2 et 8.3 a été déplacé dans la nouvelle Annexe normative A et 8.4 a été supprimé;
- l'Article 12 (Protection contre d'autres dangers) a été ajouté;
- les articles relatifs au marquage et à la documentation ont été amendés.
La version française de cette norme n'a pas été soumise au vote. Le contenu du corrigendum de novembre 2012 a été pris en considération dans cet exemplaire.

General Information

• Status: Published
• Publication Date: 28-Nov-2010
• ICS: 23.120 - Ventilators. Fans. Air-conditioners
• 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
• Completion Date: 10-Mar-2015

Standards Content (Sample)

IEC 60519-1
®
Edition 4.0 2010-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE


Safety in electroheating installations –
Part 1: General requirements

Sécurité dans les installations électrothermiques –
Partie 1: Exigences générales


IEC 60519-1:2010

---------------------- Page: 1 ----------------------
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IEC 60519-1
®
Edition 4.0 2010-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE


Safety in electroheating installations –
Part 1: General requirements

Sécurité dans les installations électrothermiques –
Partie 1: Exigences générales

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
V
CODE PRIX
ICS 25.180.10 ISBN 978-2-88912-264-6
® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale

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– 2 – 60519-1 Ó IEC:2010
CONTENTS
FOREW ORD . 4
INTRODUCTION . 6
1 Scope and object . 7
2 Normativ e references . 8
3 Terms and definitions . 9
4 Classification of electroheating equipment . 15
4.1 General . 15
4.2 Classification of electroheating equipment according to process frequency . 15
4.2.1 Direct current equipment . 15
4.2.2 Low-frequency equipment. 16
4.2.3 Mains-frequency equipment . 16
4.2.4 Medium-frequency equipment . 16
4.2.5 High-frequency equipment . 16
4.2.6 Microwave equipment . 16
4.2.7 Infrared equipment . 16
5 General requirements . 16
5.1 General . 16
5.2 Electroheating equipment . 17
5.3 Electric equipment of electroheating installations . 18
5.4 Electrostatic charges . 19
5.5 Magnetic, electric and electromagnetic fields . 19
5.6 Electromagnetic compatibility . 19
5.7 Ionizing radiation . 20
5.8 Liquid cooling . 20
6 Isolation and switching . 20
6.1 General . 20
6.2 Switching-off of control and auxiliary circuits . 21
6.3 Switching at high voltage levels . 21
7 Connection to the electrical supply network and internal connections . 21
7.1 General requirements . 21
7.2 Fixed electric connection . 22
7.3 Removable connection and flexible conductors . 22
8 Protection against electric shock . 22
8.1 General . 22
8.2 Direct contact – special measures. 23
8.3 Indirect contact – special measures . 23
9 Equipotential bonding . 23
9.1 General . 23
9.2 Protective bonding circuits . 23
9.2.1 General. 23
9.2.2 Protective conductors . 23
9.2.3 Continuity of the protective bonding system. 23
9.2.4 Exclusion of switching devices from the protective bonding system . 23
9.2.5 Parts that need not be connected to the protective bonding system . 23
9.2.6 Interruption of the protective bonding system . 24

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60519-1 Ó IEC:2010 – 3 –
9.2.7 Protective conductor connecting points . 24
9.2.8 Protective bonding for electroheating installations with earth
leakage current above 10 mA . 24
9.3 Functional bonding . 24
9.4 Prohibition of the use of earth as part of an active circuit . 24
10 Control circuits and control functions . 24
10.1 Control circuits . 24
10.2 Earthing of control circuits . 25
10.3 Control functions . 25
10.3.1 General. 25
10.3.2 Start and stop functions . 26
10.3.3 Operating modes . 26
10.3.4 Suspension of safety functions and/or protective measures . 26
10.3.5 Emergency operations . 26
10.3.6 Cableless control . 26
10.4 Control functions in the event of failure . 26
11 Protection against thermal influences . 26
12 Protection against other hazards . 27
13 Marking, labelling and technical documentation . 27
13.1 Marking . 27
13.2 Warning marking . 28
13.3 Labell ing . 28
13.4 Technical documentation . 28
14 Commissioning, inspection, operation and maintenance . 28
14.1 General requirements . 28
14.2 Commissioning and inspection. 29
14.3 Safety instructions for operation . 29
14.4 Instructions for maintenance work . 29
Annex A (normative) Protection against electric shock – special measures . 31
Bibliography . 32

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INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

SAFETY IN ELECTROHEATING INSTALLATIONS –

Part 1: General requirements


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
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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 60519-1 has been prepared by IEC technical committee 27:
Industrial electroheating.
This fourth edition cancels and replaces the third edition published in 2003. It constitutes
a technical revision.
The main technical changes with respect to the previous edition are as follows:
– scope and object have been modified, voltage limits and classification removed;
– terms/definitions, normative references and bibliography have been updated and
completed;
– Clause 4 on classification of equipment according to process frequency has been
modified;
– Clause 5 (General requirements) has been redrafted and new provisions have been
added (e.g. relating to single fault conditions and EMF issues), following the
recommendations of IEC Guide 104;

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60519-1  IEC:2010 – 5 –
– Clause 8 has been redrafted, the contents of subclauses 8.2 and 8.3 has been moved to a
new normative Annex A and 8.4 has been deleted;
– a new Clause 12 (Protection against other hazards) has been added;
– clauses dealing with marking and documentation have been amended.
The text of this standard is based on the following documents:
FDIS Report on voting
27/770/FDIS 27/778/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.
The French version of this standard has not been voted upon.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts of IEC 60519 series, under the general title Safety in electroheating
installations, 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 a new edition.
The clauses of parts of the IEC 60519 series (hereinafter called Particular Requirements)
supplement or modify the corresponding clauses of Part 1. Where the text of subsequent
parts indicates an "addition" to or a "replacement" of the relevant provision of Part 1, these
changes are made to the relevant text of Part 1. Where no change is necessary, the words
"This clause of Part 1 is applicable" are used. Additional specific provisions to those in Part 1
are given in the Particular Requirements as additional clauses, subclauses or Annexes.
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.

The contents of the corrigendum of November 2012 have been included in this copy.

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– 6 – 60519-1 Ó IEC:2010
INTRODUCTION
International Standard IEC 60519 Safety in electroheating installations consists of several
parts. Part 1 comprises clauses of a general character and provisions common to various
types of industrial electroheating installations or equipment. Subsequent parts of the
IEC 60519 series (hereinafter called Particular Requirements) contain specific provisions
for particular types of electroheating installations or equipment.
Part 1: General requirements
Part 2: Particular requirements for resistance heating equipment
Part 3: Particular requirements for induction and conduction heating and induction
melting installations
Part 4: Particular requirements for arc furnace installations
Part 5: Specifications for safety in plasma installations
Part 6: Specifications for safety in industrial microwave heating equipment
Part 7: Particular requirements for installations with electron guns
Part 8: Particular requirements for electroslag remelting furnaces
Part 9: Particular requirements for high-frequency dielectric heating installations
Part 10: Particular requirements for electrical resistance trace heating systems for
industrial and commercial applications
Part 11: Particular requirements for installations using the effect of electromagnetic
forces on liquid metals
Part 21: Particular requirements for resistance heating equipment – Heating and
melting glass equipment
NOTE Additional parts covering particular industrial electroheating installations or equipment may be prepared in
the future.

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60519-1 Ó IEC:2010 – 7 –
SAFETY IN ELECTROHEATING INSTALLATIONS –

Part 1: General requirements



1 Scope and object
This part of IEC 60519 specifies the general safety requirements applicable to industrial
electroheating installations.
In case these requirements differ from those of other IEC publications, an equivalent
degree of safety is ensured.
The requirements apply to industrial installations, intended for electroheating and
electroheat based treatment technologies, with the possible use of the following equipment:
– equipment for direct and indirect resistance heating;
– equipment for electric resistance trace heating;
– equipment for induction heating;
– equipment using the effect of EM forces on liquid metals;
– equipment for arc heating, including submerged arc heating;
– equipment for electroslag remelting;
– equipment for plasma heating;
– equipment for microwave heating;
– equipment for dielectric heating;
– equipment for electron beam heating;
– equipment for laser heating;
– equipment for infrared radiation heating.
NOTE 1 The list presents typical examples of equipment used in installations covered by this standard and is not
exhaustive.
This standard is not applicable for heating appliances for household (e.g. electric cooking),
laboratory or medical applications or for welding equipment, if covered by other particular
standards, nor does it apply to any kind of space heating.
This standard refers to normal operation of industrial electroheating installations. It is
intended to ensure the safety of persons also in the case of abnormal operation and when
faults occur in electroheating installations. This standard presumes that the installations are
operated and maintained only by personnel consisting of instructed or skilled persons,
respectively.
The object of this standard is to specify the general safety requirements for electroheating
installations. These safety requirements concern the protection of persons and the
environment against dangers of electrical origin and also against certain dangers of non-
electrical origin, common to all types of equipment and installations.
Certain clauses of this standard concern not only safety of personnel but also protection of
the environment.
The overall safety requirements result from the joint application of the general requirements
specified in this standard and Particular Requirements concerning the specific industrial

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– 8 – 60519-1 Ó IEC:2010
application of electroheat. These Particular Requirements supplement, modify or replace
the general requirements.
The Particular Requirements cover particular safety relevant features such as high voltages
and electric fields or high currents and magnetic fields, also with respect to the frequencies.
NOTE 2 Information on non-electrical hazards possibly arising from the utilization of industrial electroheating
equipment may also be taken from European Standard EN 746-1 (see Bibliography), which specifies common safety
requirements for industrial thermoprocessing equipment.
General test methods for industrial electroheating installations are specified in IEC 60398.
2 Normative references
The following referenced documents are indispensable for the application of this document.
For dated references, only the edition cited applies. For undated references, the latest
edition of the referenced document (including any amendments) applies.
IEC 60050-841:2004, International Electrotechnical Vocabulary – Part 841: Industrial
electroheat
IEC 60071-1, Insulation co-ordination – Part 1: Definitions, principles and rules
IEC 60110-1:1998, Power capacitors for induction heating installations – Part 1: General
1
IEC 60204-1:2005 , Safety of machinery – Electrical equipment of machines – Part 1:
General requirements
Amendment 1 (2008)
IEC 60204-11, 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 60364-1:2005, Low-voltage electrical installations – Part 1: Fundamental principles,
assessment of general characteristics, definitions
IEC 60364-4-41, Low-voltage electrical installations – Part 4-41: Protection for safety –
Protection against electric shock
IEC 60364-4-42, Low-voltage electrical installations – Part 4-42: Protection for safety –
Protection against thermal effects
IEC 60364-4-43, Low-voltage electrical installations – Part 4-43: Protection for safety –
Protection against overcurrent
IEC 60364-5-53, Electrical installations of buildings – Part 5-53: Selection and erection of
electrical equipment – Isolation, switching and control
IEC 60364-5-54, Electrical installations of buildings – Part 5-54: Selection and erection of
electrical equipment – Earthing arrangements, protective conductors and protective bonding
conductors
———————
1
 There is a consolidated edition 5.1 (2009) that includes IEC 60204-1 (2005) and its amendment 1 (2008).

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60519-1 Ó IEC:2010 – 9 –
IEC 60417, Graphical symbols for use on equipment
IEC 60446, Basic and safety principles for man-machine interface, marking and
identification – Identification of conductors by colours or alphanumerics
IEC 60529, Degrees of protection provided by enclosures (IP Code)
IEC 60664-1, Insulation coordination for equipment within low-voltage systems – Part 1:
Principles, requirements and tests
IEC 61140, Protection against electric shock – Common aspects for installation and
equipment
IEC 61936-1, Power installations exceeding 1 kV a.c. – Part 1: Common rules
CISPR 11, Industrial, scientific and medical equipment – Radio-frequency disturbance
characteristics – Limits and methods of measurement
ISO 3864-1, Graphical symbols – Safety colours and safety signs – Part 1: Design principles
for safety signs in workplaces and public areas
ISO 7000, Graphical symbols for use on equipment – Index and synopsis
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60050-841:2004
and the following apply.
NOTE 1 Unless otherwise stated, the terms "voltage" and "current" apply to the r.m.s. values in the case of a.c.
NOTE 2 The electrical terms and quantities associated with the word "rated" refer to the electroheating equipment
itself, unless otherwise stated. The terms "rated voltage", "rated current" or "rated power" refer to the voltage (in the
case of a three-phase system, the voltage between phases), the current or the power specified by the manufacturer
and marked on the electroheating equipment.
3.1
direct contact
electric contact of persons or animals with live parts
[IEC 60050-195:1998, 195-06-03]
3.2
earthing conductor
grounding conductor (US)
earth conductor (deprecated)
conductor which provides a conductive path, or part of the conductive path, between a
given point in a system or in an installation or in equipment and an earth electrode
[IEC 60050-195:1998, 195-02-03]
3.3
earth leakage current
current flowing from the live parts of the installation to earth, in the absence of an insulation
fault
[IEC 60050-442: 1998, 442-01-24]

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– 10 – 60519-1 Ó IEC:2010
3.4
electric connection
means or actual condition that allows or ensures the passage of electric current between
two conductive parts
3.5
electric equipment
item used for such purposes as generation, conversion, transmission, distribution or
utilization of electric energy, such as converters, transformers, capacitors, switchgear and
controlgear, measuring instruments, protective devices and wiring systems
[IEC 60050-826:2004, 826-16-01, modified]
3.6
electrical installation
assembly of associated electric equipment having co-ordinated characteristics to fulfil
specific purposes
[IEC 60050-826:2004, 826-10-01]
3.7
(electrically) instructed person
person adequately advised or supervised by electrically skilled persons to enable him or her
to perceive risks and to avoid hazards wh
...