【Weekend Share-18】Can gas explosion-proof equipment replace dust explosion-proof equipment?

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This post was last edited by zhoudingshengs on 2024-12-20 11:13. 1. Can gas explosion-proof equipment replace dust explosion-proof equipment? 【Answer】No. 【Basis】Article 5.2.3 (excerpt) of the Code for Design of Electrical Installations in Explosive Atmospheres GB 50058-2014: The class and group of explosion-proof electrical equipment shall not be lower than those of the explosive gas mixture in the explosive atmosphere. GB/T3836.1-2021 Explosive atmospheres – Part 1: Equipment – General requirements, Clause 29.3, General rule f): The specific Ex marks for explosive gas atmospheres are given in 29.4, while those for explosive dust atmospheres are specified in 29.5. The Ex marks for explosive gas environments and explosive dusts should be separated and not combined. \"Criteria for Identifying Major Potential Hazards in Production Safety Incidents in Chemical and Hazardous Chemicals Production and Operation Units (Trial),\" Safety Supervision General Administration Document No. San [2017] 121, Item 12 (parts omitted): Explosion-hazardous areas fail to install and use explosion-proof electrical equipment in accordance with **standards. If gas explosion-proof equipment is used “directly” in place of dust explosion-proof equipment, encountering situation “No. 12” constitutes a serious hazard.