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IEC 60079-25:2020 ED3

Explosive atmospheres - Part 25: Intrinsically safe electrical systems

Jun 26, 2020

General information

60.60     Jun 26, 2020


TC 31/SC 31G

International Standard


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IEC 60079-25:2020 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.
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.
This third edition cancels and replaces the second edition published in 2010 and constitutes a technical revision.
The contents of the corrigendum 1 of October 2020 and corrigendum 2 of November 2022 have been included in this copy.

Life cycle


IEC 60079-25:2020 ED3
60.60 Standard published
Jun 26, 2020


IEC 60079-25:2020/COR1:2020 ED3

IEC 60079-25:2020/COR2:2022 ED3

IEC 60079-25/AMD1 ED3

National adoptions

Explosive atmospheres - Part 25: Intrinsically safe electrical systems

60.60 Standard published

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