IEC 60079-25:2020包含本质安全系统的设计、构造和评估的具体要求，保护类型为“I”，旨在全部或部分用于需要使用I、II或III类防爆设备的场所。 本文件补充和修改了IEC 60079-0和本质安全标准IEC 60079-11的一般要求。当本标准的要求与IEC 60079-0或IEC 60079-11的要求相冲突时，以本标准的要求为准。 按照本标准设计的II类或III类系统的安装要求在IEC 60079-14中有规定。 本第三版取消并取代2010年出版的第二版，构成技术修订。

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.