SIST EN IEC 60079-45:2025
(Main)Explosive atmospheres - Part 45: Electrical ignition systems for internal combustion engines (IEC 60079-45:2025)
Explosive atmospheres - Part 45: Electrical ignition systems for internal combustion engines (IEC 60079-45:2025)
IEC 60079-45:2025 is intended to enhance the safety of personnel by providing minimum requirements for electrical ignition systems for spark-ignited reciprocating internal combustion engines, parts of which provide Equipment Protection Level (EPL) Gc.
This document provides minimum construction and test requirements, in addition to manufacturer installation and maintenance recommendations, for the safe operation of ignition systems and components for spark-ignited reciprocating internal combustion engines providing EPL Gc for equipment Group IIB+H2, IIB or IIA. These requirements apply to systems rated for normal operation with secondary voltages less than or equal to 60 kV.
This document applies only to the ignition systems or the individual ignition system components used on reciprocating internal combustion engines that are stationary when in operation and mobile machinery where the internal combustion engine can be potential source of ignition. Applications addressed by the scope of this document include but are not limited to gas compressors, electric power generators, forklift trucks, and pumps.
This document does not apply to:
a) Engine ignition systems that utilize a breaker point or magneto type ignition systems as these would not be suitable for use in a hazardous area.
b) Road vehicles.
c) Low voltage parts and electrical installation that are not included in the ignition system, such as various sensors and thermocouples, throttle actuator(s), fuel control valve(s), human machine interface (HMI), respective harness and wiring and all the other items that might belong to the integrated control system besides the ignition system.
This document supplements and modifies the general requirements of IEC 60079-0 and the requirements of ISO/IEC 80079-41. Where a requirement of this document conflicts with IEC 60079 0 or ISO/IEC 80079-41, the requirement of this document takes precedence.
Explosionsgefährdete Bereiche – Teil 45: Elektrische Zündsysteme für Verbrennungsmotoren (IEC 60079-45:2025)
Atmosphères explosives - Partie 45: - Systèmes d’allumage électrique pour les moteurs à combustion interne (IEC 60079-45:2025)
IEC 60079-45:2025 est destinée à améliorer la sécurité du personnel en fournissant des exigences minimales pour les systèmes d’allumage électrique des moteurs alternatifs à combustion interne à allumage par étincelle, dont des parties assurant un niveau de protection de l’appareil (EPL) Gc.
Le présent document fournit des exigences minimales de construction et d’essai, en plus des recommandations d’installation et de maintenance du fabricant, pour un fonctionnement sûr des systèmes d’allumage et des composants des moteurs alternatifs à combustion interne à allumage par étincelle assurant un niveau de protection Gc pour les appareils du Groupe IIB+H2, IIB ou IIA. Ces exigences s’appliquent aux systèmes conçus pour un fonctionnement normal avec des tensions secondaires inférieures ou égales à 60 kV.
Le présent document s’applique uniquement aux systèmes d’allumage ou à chaque composant d’un système d’allumage utilisés sur les moteurs alternatifs à combustion interne qui sont fixes lorsqu’ils fonctionnent, et sur les machines mobiles dans lesquelles le moteur à combustion interne peut être une source potentielle d’allumage. Les applications couvertes par le domaine d’application du présent document comprennent, sans s’y limiter, les compresseurs à gaz, les générateurs électriques, les chariots élévateurs à fourche et les pompes.
Le présent document ne s’applique pas:
a) aux systèmes d’allumage de moteurs qui utilisent un point de rupture ou aux systèmes d’allumage de type magnéto, car ils ne conviendraient pas à une utilisation dans une zone dangereuse;
b) aux véhicules routiers;
c) aux pièces et installations électriques basse tension qui ne sont pas incluses dans le système d’allumage, telles que les divers capteurs et thermocouples, les commandes des gaz, les robinets de commande carburant, l’interface homme-machine (IHM), les faisceaux et câblages correspondants et tous les autres éléments susceptibles d’appartenir au système de commande intégré en plus du système d’allumage.
Le présent document complète et modifie les exigences générales de l’IEC 60079-0 et les exigences de l’ISO/IEC 80079-41. En cas de contradiction entre une exigence du présent document et l’IEC 60079 0 ou l’ISO/IEC 80079-41, l’exigence du présent document prévaut
Eksplozivne atmosfere - 45. del: Električni sistemi za vžig motorjev z notranjim zgorevanjem (IEC 60079-45:2025)
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-december-2025
Eksplozivne atmosfere - 45. del: Električni sistemi za vžig motorjev z notranjim
zgorevanjem (IEC 60079-45:2025)
Explosive atmospheres - Part 45: Electrical ignition systems for internal combustion
engines (IEC 60079-45:2025)
Explosionsgefährdete Bereiche – Teil 45: Elektrische Zündsysteme für
Verbrennungsmotoren (IEC 60079-45:2025)
Atmosphères explosives - Partie 45: - Systèmes d’allumage électrique pour les moteurs
à combustion interne (IEC 60079-45:2025)
Ta slovenski standard je istoveten z: EN IEC 60079-45:2025
ICS:
27.020 Motorji z notranjim Internal combustion engines
zgorevanjem
29.260.20 Električni aparati za Electrical apparatus for
eksplozivna ozračja explosive atmospheres
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN IEC 60079-45
NORME EUROPÉENNE
EUROPÄISCHE NORM October 2025
ICS 29.260.20; 43.060.50
English Version
Explosive atmospheres - Part 45: Electrical ignition systems for
internal combustion engines
(IEC 60079-45:2025)
Atmosphères explosives - Partie 45: Systèmes d'allumage Explosionsgefährdete Bereiche - Teil 45: Elektrische
électrique pour les moteurs à combustion interne Zündsysteme für Verbrennungsmotoren
(IEC 60079-45:2025) (IEC 60079-45:2025)
This European Standard was approved by CENELEC on 2025-10-01. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2025 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 60079-45:2025 E
European foreword
The text of document 31/1880/FDIS, future edition 1 of IEC 60079-45, prepared by TC 31 "Equipment
for explosive atmospheres" was submitted to the IEC-CENELEC parallel vote and approved by
CENELEC as EN IEC 60079-45:2025.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2026-10-31
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2028-10-31
document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 60079-45:2025 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standard indicated:
IEC 60079-14 NOTE Approved as EN IEC 60079-14
IEC 60079-15 NOTE Approved as EN IEC 60079-15
IEC 60079-18 NOTE Approved as EN 60079-18
IEC 60079-25 NOTE Approved as EN IEC 60079-25
IEC 60079-33 NOTE Approved as CLC/TR 60079-33
ISO 19879:2021 NOTE Approved as EN ISO 19879:2021 (not modified)
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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.
NOTE 1 Where an International Publication has been modified by common modifications, indicated by (mod),
the relevant EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available
here: www.cencenelec.eu.
Publication Year Title EN/HD Year
IEC 60079-0 - Explosive atmospheres - Part 0: EN IEC 60079-0 -
Equipment - General requirements
IEC 60079-1 - Explosive atmospheres - Part 1: EN 60079-1 -
Equipment protection by flameproof
enclosures "d"
IEC 60079-7 - Explosive atmospheres - Part 7: EN 60079-7 -
Equipment protection by increased
safety "e"
IEC 60079-11 - Explosive atmospheres - Part 11: EN IEC 60079-11 -
Equipment protection by intrinsic safety
"i"
ISO 11565 - Road vehicles - Spark-plugs - Test - -
methods and requirements
1 2
ISO/IEC 80079-41 - Explosive atmospheres - Part 41: EN ISO/IEC 80079-41 -
Reciprocating internal combustion
engines
SAE J2031 - High-Tension Ignition Cable - -
Under preparation. Stage at the time of publication: ISO/IEC/CCDV 80079-41:2025.
Under preparation. Stage at the time of publication: prEN ISO/IEC 80079-41:2025.
IEC 60079-45 ®
Edition 1.0 2025-08
INTERNATIONAL
STANDARD
Explosive atmospheres -
Part 45: Electrical ignition systems for internal combustion engines
ICS 29.260.20; 43.060.50 ISBN 978-2-8327-0651-0
IEC 60079-45:2025-08(en)
IEC 60079-45:2025 © IEC 2025
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 8
4 System overview . 10
4.1 General . 10
4.2 Spark containment . 10
4.3 Spark prevention . 11
4.4 Spark detection/prevention . 11
4.5 Ignition system equipment . 11
4.6 Engine enclosed systems . 12
5 Construction and testing requirements . 12
5.1 General . 12
5.2 Impact . 12
5.3 Chemical compatibility . 12
5.4 Terminations and connections . 13
5.5 Power source . 13
5.6 Engine control module and ignition control unit . 13
5.7 Engine primary wiring. 13
5.8 Ignition coils . 14
5.9 Secondary leads . 14
5.9.1 General. 14
5.9.2 Flexible secondary lead . 14
5.9.3 Rigid secondary lead . 15
5.10 Spark plugs . 15
6 Spark containment . 16
7 Spark prevention . 16
7.1 General . 16
7.2 Terminations, connections, and enclosures . 16
7.3 Ignition coil requirements. 16
7.4 Spark plug well applications . 17
8 Spark detection/prevention . 17
8.1 General . 17
8.2 Design requirements . 17
9 Ex Equipment certificate . 17
10 Marking . 18
10.1 General . 18
10.2 Warning markings . 18
10.3 Example markings . 19
11 Manufacturer's instructions . 20
11.1 General . 20
11.2 Manufacturer’s instructions and installation drawings . 20
11.3 Warnings . 21
11.4 Commissioning checklist . 21
11.5 Maintenance . 22
IEC 60079-45:2025 © IEC 2025
12 Test procedures . 22
12.1 General . 22
12.2 Abrasion test for flexible secondary leads . 23
12.2.1 General. 23
12.2.2 Abrasive wheel test . 23
12.2.3 Emery cloth abrasion test . 24
12.3 Ignition coils, extensions or non-flexible secondary leads elevated
temperature exposure test . 25
12.4 Chemical compatibility . 25
12.4.1 General. 25
12.4.2 Chemical compatibility for non-flexible leads and equipment. 26
12.4.3 Chemical compatibility for flexible leads . 26
12.5 Vibration test . 27
12.6 Shielded secondary system tests . 28
12.6.1 General. 28
12.6.2 Explosion test exemption for metallic flexible leads . 29
12.7 Spark plug gas tightness test . 29
12.7.1 Spark plug gas tightness test (primary test) . 29
12.7.2 Spark plug gas tightness test (alternate test) . 30
12.8 Flashover tests . 30
12.8.1 General. 30
12.8.2 Rigid secondary lead test configuration . 31
12.8.3 Flexible
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.