International Standards and Conformity Assessment for all electrical, electronic and related technologies


Electrical apparatus for potentially explosive atmospheres



Reference EN 60079-0:2012
Title Explosive atmospheres - Part 0: Equipment - General requirements
Project Number 22542
Abstract/Scope IEC 60079-0:2011 specifies the general requirements for construction, testing and marking of electrical equipment and Ex Components intended for use in explosive atmospheres. Electrical equipment complying with this standard is intended for use in hazardous areas in which explosive gas atmospheres, caused by mixtures of air and gases, vapours or mists, exist under normal atmospheric conditions. The standard atmospheric conditions (relating to the explosion characteristics of the atmosphere) under which it may be assumed that electrical equipment can be operated are: - temperature -20 °C to +60 °C; - pressure 80 kPa (0,8 bar) to 110 kPa (1,1 bar); and - air with normal oxygen content, typically 21 % v/v. This standard and other standards supplementing this standard specify additional test requirements for equipment operating outside the standard temperature range, but further additional consideration and additional testing may be required for equipment operating outside the standard atmospheric pressure range and standard oxygen content, particularly with respect to types of protection that depend on quenching of a flame such as 'flameproof enclosure 'd'' (IEC 60079-1) or limitation of energy, 'intrinsic safety 'i'' (IEC 60079-11). This sixth edition cancels and replaces the fifth edition, published in 2007, and constitutes a full technical revision with numerous updates. NEW! IEC 60079-0:2011 is also available as IEC Standards+ 60079-0:2011 which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.


Current Stage code 6060
Current Stage code date 2012-08-24
Current Stage code deadline 2013-04-02
Deadline date for vote  


Directive(s) ATEX (94/9/EC), TDG (2008/68/EC)
Order Voucher  


IEC Technical Body IEC/TC 31
Reference Document IEC 60079-0:2011 (MOD) + IS1:2013 (EQV) + corrigendum Dec. 2013 (EQV)
ICS 29.260.20 - Electrical apparatus for explosive atmospheres
Keywords Explosive; Atmosphere; Gas
Note 2012-03-09: Publication editing allocated to * Supersedes EN 60079-0:2009
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2012-08-24 2013-04-02 export to doc file  EN  FR  DE
5099 2012-04-02 2012-04-30  
5060 2012-02-27 2012-03-19 export to doc file  EN
5020 2011-12-23 2012-02-24 export to doc file  EN  FR  DE
3090 2011-07-15 2011-08-12  
5060 2011-05-16 2011-06-06 export to doc file  EN
5020 2011-03-11 2011-05-13  
3090 2009-12-18 2010-09-30  
5060 2009-11-30 2009-12-14 export to doc file  EN
5020 2009-06-26 2009-11-27  
1090 2009-06-23 2009-06-26  

Implementation Dates

date of Ratification (DOR) (1) 2012-04-02
date of Availability (DAV) (2) 2012-08-24
date of Announcement (DOA) (3) 2012-10-02
date of Publication (DOP) (4) 2013-04-02
date of Withdrawal (DOW) (5) 2015-04-02


Supersedes EN 60079-0:2009
Superseded by  
Normative reference (6) ANSI/UL 746B:2000
ANSI/UL 746C:2004
ISO 178:2001
ISO 179-1:2000
ISO 262:1998
ISO 273:1979
ISO 286-2:1988
ISO 527-2:1993
ISO 965-1:1998
ISO 965-3:1998
ISO 1817:2005
ISO 3601-1:1988
ISO 3601-2:2008
ISO 4014:1999
ISO 4017:1999
ISO 4026:2003
ISO 4027:2003
ISO 4028:2003
ISO 4029:2003
ISO 4032:1999
ISO 4762:1997
ISO 4892-2:2006
ISO 7380-1:2011
ISO 14583:2011
EN 60034-1:2010
corr. October 2010
EN 60034-5:2001
IEC 60050-426:2008
EN 60079-1:2007
EN 60079-2:2007
EN 60079-5:2007
EN 60079-6:2007
EN 60079-7:2007
EN 60079-11:2012
EN 60079-15:2010
EN 60079-18:2009
EN 60079-20-1:2010
EN 60079-25:2010
EN 60079-26:2007
EN 60079-28:2007
EN 60079-30-1:2007
EN 60079-31:2009
EN 60086-1:2011
IEC 60095-1:2000
EN 60192:2001
EN 60216-1:2001
EN 60216-2:2005
EN 60243-1:1998
EN 60254-2:2008
EN 60423:2007
IEC 60529:2001
EN 60622:2003
EN 60623:2001
EN 60662:2012
EN 60664-1:2007
EN 60896-11:2003
EN 60896-21:2004
EN 60947-1:2007
EN 60952-3:2004
EN 61056-1:2012
EN 61241-4:2006
EN 61427:2005
EN 61951-1:2003
EN 61951-2:2011
EN 61960:2011
EN 62013-1:2006

(1) Date of ratification (dor) date when the Technical Board notes the approval of an EN (and HD for CENELEC), from which time the standard may be said to be approved

(2) Date of availability (dav) date when the definitive text in the official language versions of an approved CEN/CENELEC publication is distributed by the Central Secretariat

(3) Date of announcement (doa) latest date by which the existence of an EN (and HD for CENELEC), a TS or a CWA has to be announced at national level

(4) Date of publication (dop) latest date by which an EN has to be implemented at national level by publication of an identical national standard or by endorsement

(5) Date of withdrawal (dow) latest date by which national standards conflicting with an EN (and HD for CENELEC) have to be withdrawn

(6) This list of normative references is purely indicative. The only official list of normative reference is the list of the published standard.