SIST EN IEC 60079-0:2018/A11:2024

Explosive atmospheres - Part 0: Equipment - General requirements

Creating an amendment on European level to mirror the IEC interpretation sheet of IEC 60079-0:2017/ISH1:2019 and IEC 60079-0:2017/ISH2:2019 which are both active at IEC.

Explosionsgefährdete Bereiche - Teil 0: Betriebsmittel - Allgemeine Anforderungen

Atmosphères explosives - Partie 0: Matériel - Exigences générales

Eksplozivne atmosfere - 0. del: Oprema - Splošne zahteve

General Information

• Status: Published
• Publication Date: 06-May-2024
• ICS: 29.260.20 - Electrical apparatus for explosive atmospheres
• Technical Committee: EXP - Product for explosive atmospheres
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 24-Jan-2024
• Due Date: 30-Mar-2024
• Completion Date: 07-May-2024
• Ref Project: EN IEC 60079-0:2018/A11:2024 - Explosive atmospheres - Part 0: Equipment - General requirements

Relations

• Amends: SIST EN IEC 60079-0:2018 - Explosive atmospheres - Part 0: Equipment - General requirements
• Effective Date: 01-Mar-2022
• Revised: oSIST prEN IEC 60079:2024 - Explosive atmospheres - Part 0: Equipment - General requirements
• Effective Date: 23-Apr-2024

Overview

SIST EN IEC 60079-0:2018/A11:2024 is a European amendment to the standard addressing equipment safety in explosive atmospheres. Developed by the European Committee for Electrotechnical Standardization (CLC), this amendment aligns the European Standard EN IEC 60079-0:2018 with the relevant International Electrotechnical Commission (IEC) interpretation sheets IEC 60079-0:2017/ISH1:2019 and IEC 60079-0:2017/ISH2:2019. The objective is to clarify general requirements for electrical equipment used in hazardous environments with explosive gases or dust, ensuring safety and compliance across CENELEC member countries.

This standard applies globally to electrical apparatus designed for use in explosive atmospheres, with a special focus on temperature limitations of electrical installations, marking requirements, and equipment classification. It is crucial for manufacturers, installers, and certifiers working in industries such as oil and gas, chemical processing, and mining.

Key Topics

• Temperature at Entry and Branching Points:
  Defines how to determine cable entry point and branching point temperatures on electrical rotating machines and other equipment. The guidance clarifies that temperatures should be based on the maximum internal air space temperature rather than on the temperature of cables or glands not present during standard testing. This minimizes inaccuracies and ensures safe cable and conduit selection.

• Marking of Combined Equipment:
  Provides clear instructions on marking equipment that includes both electrical and non-electrical parts (covered by IEC 60079 and ISO 80079 series respectively). The combined marking approach consolidates risk assessment, equipment protection level (EPL), temperature class, and equipment group for gases and dust, enhancing user understanding. For equipment with separate certificates, separate markings for electrical and non-electrical components are specified.

• Harmonization with IEC Interpretations:
  The amendment updates the European standard to reflect the official IEC interpretation sheets, ensuring consistent application and interpretation of requirements for explosive atmospheres equipment across all CENELEC member states.

• Implementation and Compliance:
  The document states the mandatory dates for national adoption and withdrawal of conflicting standards by CENELEC countries, securing uniform compliance in the European market.

Applications

SIST EN IEC 60079-0:2018/A11:2024 is essential for industries requiring stringent safety measures against explosion risks due to flammable gases or combustible dust, including:

• Oil and Gas Extraction and Processing: Equipment exposed to potential explosive atmospheres in drilling rigs, refineries, and pipelines must comply with temperature and marking requirements.
• Chemical Manufacturing: Control and monitoring equipment used in chemical plants must adhere to the temperature limits and combined marking guidelines established by this standard.
• Mining Operations: Electrical machines and apparatus operating in dust-prone environments rely on this standard to prevent ignition sources.
• Pharmaceutical and Food Industries: Facilities handling powdery and dust materials ensure electrical equipment safety through standards conformance.
• Electrical Rotating Machines and Motors: Specific clarifications on temperature measurement practices enhance the safety of terminal boxes and cable entries, widely applicable to motor manufacturers and end-users.

Related Standards

• IEC 60079 Series: Covers all aspects of equipment and protective systems intended for use in explosive atmospheres, including requirements for electrical and non-electrical equipment.
• ISO 80079 Series: Addresses non-electrical equipment for explosive atmospheres, complementary to the IEC 60079 electrical standards.
• IEC TS 60079-46: Technical specification providing additional guidance on marking assemblies of equipment in explosive atmospheres.
• National standards that adopt or adapt SIST EN IEC 60079-0:2018/A11:2024, implementing its requirements within specific country contexts.

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Adhering to SIST EN IEC 60079-0:2018/A11:2024 is critical for manufacturers and safety professionals to ensure reliable performance and safety of electrical equipment in hazardous locations. This amendment provides clarity on temperature measurement and marking practices-key factors in minimizing ignition risks and supporting regulatory compliance across Europe and internationally.

Standards Content (Sample)

SLOVENSKI STANDARD
01-junij-2024
Eksplozivne atmosfere - 0. del: Oprema - Splošne zahteve
Explosive atmospheres - Part 0: Equipment - General requirements
Explosionsgefährdete Bereiche - Teil 0: Betriebsmittel - Allgemeine Anforderungen
Atmosphères explosives - Partie 0: Matériel - Exigences générales
Ta slovenski standard je istoveten z: EN IEC 60079-0:2018/A11:2024
ICS:
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 60079-0:2018/A11

NORME EUROPÉENNE
EUROPÄISCHE NORM January 2024
ICS 29.260.20
English Version
Explosive atmospheres - Part 0: Equipment - General
requirements
Atmosphères explosives - Partie 0: Matériel - Exigences Explosionsgefährdete Bereiche - Teil 0: Betriebsmittel -
générales Allgemeine Anforderungen
This amendment A11 is only for the clarification ofthe European Standard EN IEC 60079-0:2018; it was approved by CENELEC on 2024-
01-16. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
amendment 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 amendment 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
© 2024 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 60079-0:2018/A11:2024 E

European foreword
This document (EN IEC 60079-0:2018/A11:2024) consists of the text of IEC 60079-0:2017/ISH1:2019 and
IEC 60079-0:2017/ISH2:2019, prepared by IEC/TC 31 "Equipment for explosive atmospheres".
The following dates are fixed:
• latest date by which this document has to be (dop) 2025-01-16
implemented at national level by publication of
an identical national standard or by
endorsement
• latest date by which the national standards (dow) 2027-01-16
conflicting with this 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 Standards IEC 60079-0:2017/ISH1:2019 and IEC 60079-0:2017/ISH2:2019 was
approved by CENELEC as a European Standard without any modification.

IEC 60079-0:2017/ISH1:2019 – 1 –
 IEC 2019
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
IEC 60079-0
Edition 7.0  2017-12
EXPLOSIVE ATMOSPHERES –
Part 0: Equipment – General requirements

INTERPRETATION SHEET 1
This interpretation sheet has been prepared by IEC technical committee 31: Equipment for
explosive atmospheres.
The text of this interpretation sheet is based on the following documents:
DISH Report on voting
31/1455/DISH 31/1464/RVDISH
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.

___________
Interpretati
...