IEC 60079-0:2026 pdf download,Explosive atmospheres – Part 0: Equipment – General requirements.
IEC 60079-0:2026 is the general requirements standard for electrical equipment intended for use in explosive atmospheres. It provides the baseline engineering rules that must be met so equipment cannot become an ignition source when exposed to flammable gases, vapors, mists, or combustible dust/air mixtures under reasonably foreseeable conditions. The standard applies across the IEC 60079 “Ex equipment” family: specific protection concepts (for example, flameproof enclosures, intrinsic safety, pressurization, encapsulation, dust protection by enclosures) are detailed in other parts, while IEC 60079-0 covers the common requirements shared by them all.
In particular, it sets expectations for construction, testing, and marking of Ex equipment and Ex components, including what information must appear on the equipment marking and certification documents. It also defines relevant standard atmospheric conditions for tests, and addresses situations where equipment might need additional consideration or testing outside standard conditions—especially for protection concepts that rely on flame quenching or energy limitation. IEC 60079-0:2026 is Edition 8, which cancels the 2017 Edition 7 and introduces technical revisions affecting requirements such as temperature marking, electrostatic considerations, motor/rotating equipment thermal protection, and factory wiring requirements for multi-enclosure equipment.