Explosive atmospheres - Part 25: Intrinsically safe electrical systems
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.
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