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This post was last edited by Zhongnuo Service Window 08 on 2021-1-11 at 14:05. For a long time, the **standards related to the safety of explosion-proof electrical equipment in our country have mainly consisted of the basic standards for explosion-proof electrical equipment, namely the GB3836 series, as well as manufacturing and inspection standards and standards for explosion-proof electrical products. The entities responsible for implementing these standards are product manufacturing enterprises and quality inspection agencies for explosion-proof electrical products. However, whether explosion-proof electrical products used in hazardous areas can ensure explosion safety depends not only on design, manufacturing, and testing departments providing products with high explosion-proof performance, but also on the safe use of those products by their end-users. Even the best-performing explosion-proof electrical products, if used improperly, not only fail to provide explosion protection but may even turn into deadly threats to safety. Many tragic explosion accidents have proven this. For example, the rubber seals in the cable entry devices of explosion-proof electrical products are important components that help maintain the product’s explosion-proof properties. These components are often overlooked in practice, and proper selection, installation, and maintenance of them are not ensured. In some cases, users fail to compress it properly after maintenance; in others, the size and material of the sealing ring used do not meet the standard requirements; and in still other cases, no sealing ring is installed at all after the maintenance is completed. As a result, flammable gases in hazardous areas can flow unobstructed into the junction box cavity. Once arc sparks appear at the connections of the terminals inside the junction box, it is possible to ignite flammable gases and cause an explosion. Examples like this, in which the use of explosion-proof electrical products is not safe and leads to explosion accidents, account for a large proportion of the overall statistics on explosion accidents. It is evident that the safe use of explosion-proof electrical products and the manufacturing quality that reflects their safety performance are equally important. So, how can we minimize the improper installation and use of explosion-proof electrical equipment? ——Explosion-proof site safety inspection: Over time, explosion-proof electrical equipment often encounters various issues related to its explosion-proof properties. For example: corrosion and damage to the explosion-proof enclosure, damage caused by improper installation, cracking and damage of the enclosure due to excessive temperatures, and failure of the protective enclosure resulting from drilling holes in the flameproof enclosure for wiring. . . . . . Conducting regular on-site explosion-proof inspections of electrical equipment in use is not only a requirement imposed by safety departments but also reflects a company’s commitment to protecting its own lives and property. According to Section 7 of AQ3009-2007 \"Safety Specifications for Electrical Equipment in Hazardous Areas,\" electrical equipment used in hazardous areas must undergo initial inspections as well as regular inspections. Conducting regular safety checks on the installed explosion-proof electrical equipment is the most fundamental requirement to ensure its safety. So, what standards and specifications are followed for the safety inspection of explosion-proof electrical equipment on site? GB 50058-2014 \"Code for Design of Electrical Installations in Explosive Atmospheres\" GB 3836.14-2014 \"Explosive atmospheres – Part 14: Classification of locations – Gas explosive atmospheres\" AQ 3009-2007 \"Safety codes for electrical equipment in hazardous locations\" GB 50257-2014 \"Electrical installation engineering – Construction and acceptance of electrical installations in explosive and fire-hazardous environments\" GB15577-2018 \"Safety regulations for dust explosion prevention\" GB12476.2-2010 \"Electrical equipment for use in flammable dust atmospheres – Part 2: Selection and installation\"