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IEC 60079-25

Explosive atmospheres – Part 25: Intrinsically safe electrical systems

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Organization: IEC
Publication Date: 1 June 2020
Status: active
Page Count: 122
ICS Code (Electrical apparatus for explosive atmospheres): 29.260.20
scope:

This part of IEC 60079 contains the specific requirements for design, construction and assessment of intrinsically safe systems, Type of Protection "i", intended for use, as a whole or in part, in locations in which the use of Group I, II or III Ex Equipment is required.

NOTE 1 This standard is intended for use by the designer of the system e.g. a person who could be a manufacturer, a specialist consultant or a member of the end-user's staff.

This document supplements and modifies the general requirements of IEC 60079-0 and the intrinsic safety standard IEC 60079-11. Where a requirement of this standard conflicts with a requirement of IEC 60079-0 or IEC 60079-11, the requirement of this standard takes precedence.

The installation requirements of Group II or Group III systems designed in accordance with this standard are specified in IEC 60079-14.

NOTE 2 Group I installation requirements are presently not provided in IEC 60079-14. Installation requirements for Group I are being considered.

Document History

60079-25 INT 1
May 1, 2023
ELECTRICAL APPARATUS FOR EXPLOSIVE GAS ATMOSPHERES – Part 25: Intrinsically safe electrical systems
A description is not available for this item.
60079-25 INT 1
May 1, 2023
EXPLOSIVE ATMOSPHERES – Part 25: Intrinsically safe electrical systems
A description is not available for this item.
60079-25 CORR 2
November 1, 2022
EXPLOSIVE ATMOSPHERES – Part 25: Intrinsically safe electrical systems
A description is not available for this item.
IEC 60079-25
October 1, 2020
Explosive atmospheres – Part 25: Intrinsically safe electrical systems
A description is not available for this item.
IEC 60079-25
June 1, 2020
Explosive atmospheres – Part 25: Intrinsically safe electrical systems
This part of IEC 60079 contains the specific requirements for design, construction and assessment of intrinsically safe systems, Type of Protection “i”, intended for use, as a whole or in part, in...
IEC 60079-25
February 1, 2010
Explosive atmospheres – Part 25: Intrinsically safe electrical systems
This part of IEC 60079 contains the specific requirements for construction and assessment of intrinsically safe electrical systems, type of protection "i", intended for use, as a whole or in part, in...
IEC 60079-25
August 1, 2003
Electrical apparatus for explosive gas atmospheres – Part 25: Intrinsically safe systems
This part of IEC 60079 contains the specific requirements for construction and assessment of intrinsically safe electrical systems, type of protection “i”, intended for use, as a whole or in part, in...
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References

This document references:
IEC 60079-11 - Explosive atmospheres – Part 11: Equipment protection by intrinsic safety "i" INTERPRETATION SHEET 3
Published by IEC on July 1, 2016
A description is not available for this item.
This document references:
61158-2 - Industrial communication networks – Fieldbus specifications – Part 2: Physical layer specification and service definition
Published by IEC on March 1, 2023
This part of IEC 61158 specifies the requirements for fieldbus component parts. It also specifies the media and network configuration requirements necessary to ensure agreed levels of a) data...
This document references:
IEC 60079-0 - EXPLOSIVE ATMOSPHERES – Part 0: Equipment – General requirements
Published by IEC on June 1, 2019
A description is not available for this item.
This document references:
IEC 60079-11 - Explosive atmospheres – Part 11: Equipment protection by intrinsic safety "i" INTERPRETATION SHEET 3
Published by IEC on July 1, 2016
A description is not available for this item.
This document references:
IEC 60079-14 - Explosive atmospheres – Part 14: Electrical installations design, selection and erection
Published by IEC on January 1, 2016
A description is not available for this item.
This document references:
IEC 60529 - Degrees of Protection Provided by Enclosures (IP Code)
Published by IEC on August 1, 2013
This standard applies to the classification of degrees of protection provided by enclosures for electrical equipment with a rated voltage not exceeding 72,5 kV.
This document references:
61158-2 - Industrial communication networks – Fieldbus specifications – Part 2: Physical layer specification and service definition
Published by IEC on March 1, 2023
This part of IEC 61158 specifies the requirements for fieldbus component parts. It also specifies the media and network configuration requirements necessary to ensure agreed levels of a) data...
This document is referenced by:
BS EN 12621 - Machinery for the supply and circulation of coating materials under pressure - Safety requirements
Published by BSI on February 17, 2006
A description is not available for this item.
This document is referenced by:
IEC 60947-4-2 - Low-voltage switchgear and controlgear – Part 4-2: Contactors and motor-starters – Semiconductor motor controllers, starters and soft-starters
Published by IEC on June 1, 2020
This part of IEC 60947 applies to semiconductor motor controllers, starters and soft-starters which can include a series mechanical switching device, intended to be connected to circuits the rated...
This document is referenced by:
NEN-ISO 22734 - Hydrogen generators using water electrolysis - Industrial, commercial, and residential applications
Published by NEN on October 1, 2019
This document defines the construction, safety, and performance requirements of modular or factorymatched hydrogen gas generation appliances, herein referred to as hydrogen generators, using...
This document is referenced by:
EN IEC 60045-1 - Steam turbines - Part 1: Specifications
Published by CENELEC on July 1, 2020
This part of IEC 60045 is applicable primarily to land-based horizontal steam turbines driving generators for electrical power services. Some of its provisions are relevant to turbines for other...
This document is referenced by:
IEC 60947-4-3 - Low-voltage switchgear and controlgear – Part 4-3: Contactors and motor-starters – Semiconductor controllers and semiconductor contactors for non-motor loads
Published by IEC on July 1, 2020
This document applies to semiconductor controllers and semiconductor contactors for non-motor load intended to be connected to circuits, the rated voltage of which does not exceed 1 000 V AC. It...
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