EN IEC 60079-7:2015/A1:2018

Explosive atmospheres - Part 7: Equipment protection by increased safety "e"

Explosionsgefährdete Bereiche - Teil 7: Geräteschutz durch erhöhte Sicherheit "e"

Atmosphères explosives - Partie 7: Protection du matériel par sécurité augmentée "e"

Eksplozivne atmosfere - 7. del: Zaščita opreme s povečano varnostjo "e" - Dopolnilo A1 (IEC 60079-7:2015/A1:2017)

General Information

• Status: Published
• Publication Date: 18-Jan-2018
• Withdrawal Date: 18-Jan-2021
• ICS: 29.260.20 - Electrical apparatus for explosive atmospheres
• Technical Committee: CLC/TC 31 - Electrical apparatus for explosive atmospheres - General requirements
• Drafting Committee: IEC/TC 31 - Electrical apparatus for potentially explosive atmospheres
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 19-Jan-2018
• Completion Date: 19-Jan-2018
• Directive: 2008/68/EC - Directve 2008/68/EC of the European Parliament and of the council of 24 September 2008 on the inland transport of the dangerous goods
• Directive: 2014/34/EU - Directive 2014/34/EU Of The European Parliament And Of The Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to equipment and protective systems intended for use in potentially explosive atmospheres (recast)
• Ref Project: SIST EN IEC 60079-7:2016/A1:2018 - Explosive atmospheres - Part 7: Equipment protection by increased safety "e" (IEC 60079-7:2015/A1:2017)

Relations

• Amends: EN 60079-7:2015 - Explosive atmospheres - Part 7: Equipment protection by increased safety "e"
• Effective Date: 24-Jan-2017
• Revised: FprEN IEC 60079-7:2024 - Explosive atmospheres - Part 7: Equipment protection by increased safety "e"
• Effective Date: 03-Dec-2019

Overview

EN IEC 60079-7:2015/A1:2018 is a European and international standard issued by CLC that focuses on the protection of electrical equipment used in explosive atmospheres through the increased safety method "e". This amendment to the original 2015 standard introduces additional requirements and clarifications to enhance equipment safety and conformity across member states, harmonizing methods for mitigating explosion risks in hazardous environments.

Key Topics

• Scope and Purpose: The standard specifies requirements for electrical apparatus intended for use in explosive atmospheres. It ensures that equipment achieves protection by increased safety ("e"), which involves design features to prevent ignition risks under specified conditions.
• Updated Technical Requirements: The amendment A1 clarifies construction and testing requirements, including increased separation distances for components inside compound-filled cable sealing boxes used in high-voltage equipment (above 750 V). This ensures appropriate creepage distances and clearances to avoid electrical faults that could trigger explosions.
• Voltage Ratings and Separation Distances: Table 20 in the standard specifies minimum creepage distances and clearances in millimeters for various rated voltages ranging from 750 V up to 15,000 V AC or DC. Adaptations consider the properties of potting compounds and the uncertainty in installation conditions, maintaining electrical insulation integrity and increased safety protection.
• Compliance and Regulatory Alignment: EN IEC 60079-7:2015/A1:2018 supports conformance with EU Directive 2014/34/EU on equipment used in explosive atmospheres, enabling manufacturers to demonstrate compliance for market access within Europe and EFTA member states.
• Fasteners and Equipment Assembly: The amendment references IEC 60079-0 requirements for fasteners, emphasizing that all mechanical components must comply with updated safety criteria.

Applications

This standard applies primarily to electrical apparatus used in industries where explosive gases or vapors are present, including:

• Oil and gas exploration and production facilities
• Chemical processing plants
• Mining operations
• Pharmaceutical manufacturing
• Paint and coating facilities
• Any industrial environment requiring enhanced protection against ignition sources

Using equipment designed and certified under EN IEC 60079-7:2015/A1:2018 ensures:

• Reduced risk of explosions from electrical sources
• Increased operational safety and reliability
• Compliance with European and international safety regulations
• Enhanced design practices for high voltage electrical installations in hazardous areas

Related Standards

EN IEC 60079-7:2015/A1:2018 is part of the IEC 60079 series addressing explosive atmospheres and electrical equipment protection methods. Key related standards include:

• IEC 60079-0: General requirements for electrical apparatus in explosive atmospheres, including fastener specifications.
• IEC 60079-1: Equipment protection by flameproof enclosures "d."
• IEC 60079-11: Equipment protection by intrinsic safety "i."
• IEC 60079-15: Equipment protection by type of protection "n" (non-sparking).

Together, these standards provide a comprehensive framework for the design, testing, and certification of equipment used in hazardous locations, ensuring safety and performance globally.

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Keywords: EN IEC 60079-7:2015/A1:2018, explosive atmospheres, equipment protection, increased safety "e", electrical apparatus, hazardous areas, electrical safety standards, high voltage equipment, cable sealing boxes, creepage distance, clearance, EU Directive 2014/34/EU, IEC 60079 series, industrial explosion protection.

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 60079-7:2016/A1:2018
01-maj-2018
(NVSOR]LYQHDWPRVIHUHGHO=DãþLWDRSUHPHVSRYHþDQRYDUQRVWMRH
'RSROQLOR$,(&$
Explosive atmospheres - Part 7: Equipment protection by increased safety "e" (IEC
60079-7:2015/A1:2017)
Explosionsgefährdete Bereiche - Teil 7: Geräteschutz durch erhöhte Sicherheit "e"
Atmosphères explosives - Partie 7: Protection du matériel par sécurité augmentée "e"
Ta slovenski standard je istoveten z: EN IEC 60079-7:2015/A1:2018
ICS:
29.260.20 (OHNWULþQLDSDUDWL]D Electrical apparatus for
HNVSOR]LYQDR]UDþMD explosive atmospheres
SIST EN 60079-7:2016/A1:2018 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

SIST EN 60079-7:2016/A1:2018
SIST EN 60079-7:2016/A1:2018
EUROPEAN STANDARD EN IEC 60079-7:2015/A1

NORME EUROPÉENNE
EUROPÄISCHE NORM
January 2018
ICS 29.260.20
English Version
Explosive atmospheres - Part 7: Equipment protection by
increased safety "e"
(IEC 60079-7:2015/A1:2017)
Atmosphères explosives - Partie 7: Protection du matériel Explosionsgefährdete Bereiche - Teil 7: Geräteschutz durch
par sécurité augmentée "e" erhöhte Sicherheit "e"
(IEC 60079-7:2015/A1:2017) (IEC 60079-7:2015/A1:2017)
This amendment A1 modifies the European Standard EN 60079-7:2015; it was approved by CENELEC on 2017-09-08. 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden,
Switzerland, Turkey 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
© 2018 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 60079-7:2015/A1:2018 E

SIST EN 60079-7:2016/A1:2018
European foreword
The text of document 31/1301/CDV, future IEC 60079-7:2015/A1, prepared by IEC/TC 31 "Explosive
atmospheres" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
The following dates are fixed:
(dop) 2018-07-19
• latest date by which the document has to be
implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2021-01-19
standards conflicting with the
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.

This document has been prepared under a mandate given to CENELEC by the European Commission
and the European Free Trade Association, and supports essential requirements of EU Directive(s).

For the relationship with EU Directive(s) see informative Annex ZZ, which is an integral part of this
document.
Endorsement notice
The text of the International Standard IEC 60079-7:2015/A1:2017 was approved by CENELEC as a
European Standard without any modification.
SIST EN 60079-7:2016/A1:2018
Annex ZZ
(informative)
Relationship between this European standard and the essential requirements
of 2014/34/EU [2014 OJ L96] aimed to be covered

This European Standard has been prepared under a Commission’s standardisation request
M/BC/CEN/92/46 to provide one voluntary means of conforming to essential requirements of
2014/34/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation
of the laws of the Member States relating to equipment and protective systems intended for use in
potentially explosive atmospheres (recast).

Once this standard is cited in the Official Journal of the European Union under that Directive,
compliance with the normative clauses of this standard given in Table ZZ.1 confers, within the limits of
the scope of this standard, a presumption of conformity with the corresponding essential requirements
of that Directive, and associated EFTA regulations.

Table ZZ.1 – Correspondence between this European standard and Annex II of Directive
2014/34/EU [2014 OJ L96]
Essential Requirements of Clause(s) / sub-clause(s)
Remarks / Notes
2014/34/EU of this EN
1.0.1. All clauses This is the purpose of the
Standard.
1.0.2. 4.2 / 4.3 / 4.4 / 4.6 / 5.2 / 5.3 /
5.4 / 5.6 / 5.8 / 5.9 / A.3 / A.5 /
B.4.2
1.0.2. 4/ 5 /A/B//F/G//H
1.0.3. 5.2 / 5.3 / 5.6
1.0.3. 5.2 / 5.3 / 5.6
1.0.4. 4.2 / 4.6 / 4.8
1.0.4. 4.2 / 4.6 / 4.8
1.0.5. 5.2 / 5.3 / 5.7 / 5.9 / 8.1 / 8.2 /
9.4
1.0.5. 9
1.0.6. 5.7 / 8.2
1.0.6. 9.3
1.1.1. 5.6 / 4.2
1.1.1. 4.2/ 5.6 /
1.1.2. 4.6 / 4.7
...

SLOVENSKI STANDARD
01-maj-2018
Eksplozivne atmosfere - 7. del: Zaščita opreme s povečano varnostjo "e" -
Dopolnilo A1 (IEC 60079-7:2015/A1:2017)
Explosive atmospheres - Part 7: Equipment protection by increased safety "e" (IEC
60079-7:2015/A1:2017)
Explosionsgefährdete Bereiche - Teil 7: Geräteschutz durch erhöhte Sicherheit "e"
Atmosphères explosives - Partie 7: Protection du matériel par sécurité augmentée "e"
Ta slovenski standard je istoveten z: EN IEC 60079-7:2015/A1:2018
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 60079-7:2015/A1

NORME EUROPÉENNE
EUROPÄISCHE NORM
January 2018
ICS 29.260.20
English Version
Explosive atmospheres - Part 7: Equipment protection by
increased safety "e"
(IEC 60079-7:2015/A1:2017)
Atmosphères explosives - Partie 7: Protection du matériel Explosionsgefährdete Bereiche - Teil 7: Geräteschutz durch
par sécurité augmentée "e" erhöhte Sicherheit "e"
(IEC 60079-7:2015/A1:2017) (IEC 60079-7:2015/A1:2017)
This amendment A1 modifies the European Standard EN 60079-7:2015; it was approved by CENELEC on 2017-09-08. 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden,
Switzerland, Turkey 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
© 2018 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 60079-7:2015/A1:2018 E

European foreword
The text of document 31/1301/CDV, future IEC 60079-7:2015/A1, prepared by IEC/TC 31 "Explosive
atmospheres" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
The following dates are fixed:
(dop) 2018-07-19
• latest date by which the document has to be
implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2021-01-19
standards conflicting with the
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.

This document has been prepared under a mandate given to CENELEC by the European Commission
and the European Free Trade Association, and supports essential requirements of EU Directive(s).

For the relationship with EU Directive(s) see informative Annex ZZ, which is an integral part of this
document.
Endorsement notice
The text of the International Standard IEC 60079-7:2015/A1:2017 was approved by CENELEC as a
European Standard without any modification.
Annex ZZ
(informative)
Relationship between this European standard and the essential requirements
of 2014/34/EU [2014 OJ L96] aimed to be covered

This European Standard has been prepared under a Commission’s standardisation request
M/BC/CEN/92/46 to provide one voluntary means of conforming to essential requirements of
2014/34/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation
of the laws of the Member States relating to equipment and protective systems intended for use in
potentially explosive atmospheres (recast).

Once this standard is cited in the Official Journal of the European Union under that Directive,
compliance with the normative clauses of this standard given in Table ZZ.1 confers, within the limits of
the scope of this standard, a presumption of conformity with the corresponding essential requirements
of that Directive, and associated EFTA regulations.

Table ZZ.1 – Correspondence between this European standard and Annex II of Directive
2014/34/EU [2014 OJ L96]
Essential Requirements of Clause(s) / sub-clause(s)
Remarks / Notes
2014/34/EU of this EN
1.0.1. All clauses This is the purpose of the
Standard.
1.0.2. 4.2 / 4.3 / 4.4 / 4.6 / 5.2 / 5.3 /
5.4 / 5.6 / 5.8 / 5.9 / A.3 / A.5 /
B.4.2
1.0.2. 4/ 5 /A/B//F/G//H
1.0.3. 5.2 / 5.3 / 5.6
1.0.3. 5.2 / 5.3 / 5.6
1.0.4. 4.2 / 4.6 / 4.8
1.0.4. 4.2 / 4.6 / 4.8
1.0.5. 5.2 / 5.3 / 5.7 / 5.9 / 8.1 / 8.2 /
9.4
1.0.5. 9
1.0.6. 5.7 / 8.2
1.0.6. 9.3
1.1.1. 5.6 / 4.2
1.1.1. 4.2/ 5.6 /
1.1.2. 4.6 /
...