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DETAILS OF TECHNICAL STANDARDS

IEC 60079-11

Explosive atmospheres
Part 11: Equipment protection by intrinsic safety "i"

YEAR FILE EDITION SCAME
2006 N157
       

International Standard

 

Contents
(courtesy IEC)

IEC Standards+ 60079-11:2011 contains the International Standard and its Redline version.
The Redline version is available in English only.
The Redline version provides you with a quick and easy way to compare all the changes between this standard and its previous edition. The Redline version is not an official IEC Standard, only the current version of the standard is to be considered the official document.

IEC 60079-11:2011 specifies the construction and testing of intrinsically safe apparatus intended for use in an explosive atmosphere and for associated apparatus, which is intended for connection to intrinsically safe circuits which enter such atmospheres.
This type of protection is applicable to electrical equipment in which the electrical circuits themselves are incapable of causing an explosion in the surrounding explosive atmospheres.
This standard is also applicable to electrical equipment or parts of electrical equipment located outside the explosive atmosphere or protected by another Type of Protection listed in IEC 60079-0, where the intrinsic safety of the electrical circuits in the explosive atmosphere may depend upon the design and construction of such electrical equipment or parts of such electrical equipment.
The electrical circuits exposed to the explosive atmosphere are evaluated for use in such an atmosphere by applying this standard.
The requirements for intrinsically safe systems are provided in IEC 60079-25.
This standard supplements and modifies the general requirements of IEC 60079-0, except as indicated in Table 1.
Where a requirement of this standard conflicts with a requirement of IEC 60079-0, the requirements of this standard shall take precedence.
This sixth edition cancels and replaces the fifth edition of IEC 60079-11 published in 2006, the first edition of IEC 61241-11 published in 2005, and partially replaces the second edition of IEC 60079-27 published in 2008 and constitutes a full technical revision.

The significant changes with respect to the previous edition are listed below: - Inclusion of non-edition specific references to IEC 60079-0.
- The merging of the apparatus requirements for FISCO from IEC 60079-27.
- The merging of the requirements for combustible dust atmospheres from IEC 61241-11.
- Clarification of the requirements for accessories connected to intrinsically safe apparatus; such as chargers and data loggers.
- Addition of new test requirements for opto-isolators.
- Introduction of Annex H about ignition testing of semiconductor limiting power supply circuits.

 



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"CROSS REFERENCE"
by SCAME


The main Standards
related to IEC 60079-11


 

Corresponding European standards
EN 60079-11Electrical apparatus for explosive gas atmospheres
Part 11: Intrinsic safety "i"
 
Corresponding International standards
No data available
 
Organizations and Institutions
IECInternational Electrotecnical Commission
[International Standard]
 
Other related IEC Standards
IEC 60079-0 Explosive atmospheres
Part 0: Equipment
General requirements.
IEC 60079-1 Explosive atmospheres
Part 1: Equipment protection by flameproof enclosures "d".
IEC 60079-11 Explosive atmospheres
Part 11: Equipment protection by intrinsic safety "i"
IEC 60079-15 Electrical apparatus for explosive gas atmospheres.
Part 15: Construction, test and marking of type of protection "n" electrical apparatus.
IEC 60079-31 Explosive atmospheres
Part 31: Equipment dust ignition protection by enclosure "t"
IEC 60079-7 Explosive atmospheres
Part 7: Equipment protection by increased safety "e".
IEC 61241-0 Electrical apparatus for use in the presence of combustible dust
Part 0: General requirements
IEC 61241-1 Electrical apparatus for use in the presence of combustible dust
Part 1: Protection by enclosures 'tD'
IEC 61241-11 Electrical apparatus for use in the presence of combustible dust
Part 11: Protection by intrinsic safety 'iD'
IEC 61241-14 Electrical apparatus for use in the presence of combustible dust
Part 14: Selection and installation
 
Thematic collection
Explosion

 


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The "Suggestion"
by SCAME


The main Scame products
related to the requirements of the standard IEC 60079-11


 

ALUBOX-EX Series
aluminium junction boxes - EX


ISOLATORS-EX Series



LIT-EX Series



OPTIMA-EX Series
moving and fixed: 16A ... 125A - EX


UNION-EX Series



ZENITH-A Series
Increased safety enclosures and terminal boxes


ZENITH-P Series
Increased safety enclosures and terminal boxes


ZENITH-X Series
Increased safety enclosures and terminal boxes



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GENERAL CATALOGUE

 

Rev.17.0206      

 

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