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For a long time, the national standards related to explosion-proof electrical safety in China have mainly been the manufacturing inspection standards and explosion-proof electrical product standards based on the basic explosion-proof electrical standards GB 3836 series. The implementing entities of these standards are product manufacturing enterprises and explosion-proof electrical product quality inspection institutions. However, whether explosion-proof electrical products can ensure explosion-proof safety when used in hazardous areas depends not only on the design, manufacturing, and inspection departments providing high explosion-proof safety products, but also on the safe use of product user departments. No matter how good the performance and quality of explosion-proof electrical products are, if used improperly, they not only cannot achieve explosion-proof effects, but may even become a terrifying killer that endangers safety. Many tragic explosion accidents have proven this point. For example, the rubber sealing ring in the cable entry device of explosion-proof electrical products is an important component to maintain the explosion-proof performance of the product. This component is often overlooked in use and cannot be selected, installed, and maintained correctly. If some users do not tighten it after maintenance, some choose sealing ring sizes and materials that do not meet standard requirements, and some simply do not install sealing rings after maintenance. As a result, flammable gases in hazardous areas can enter the junction box cavity unobstructed. Once an arc spark occurs at the connection of the wiring terminals inside the junction box, it may ignite flammable gases and cause an explosion. Examples of explosion accidents caused by unsafe use of explosion-proof electrical products account for a large proportion in the overall statistics of explosion accidents.

It can be seen that the safe use of explosion-proof electrical products and the manufacturing quality that reflects the safety performance of explosion-proof electrical products are equally important.

So, how can we minimize the improper installation and use of explosion-proof electrical equipment—— Explosion proof on-site safety inspection

During long-term use, explosion-proof electrical equipment often encounters various explosion-proof failure problems. For example, corrosion and damage to explosion-proof enclosures, damage caused by improper installation, shell fracture and damage caused by excessive temperature, and failure of protective enclosures due to drilling and wiring on explosion-proof enclosures......

Regularly conducting on-site inspections of explosion-proof electrical equipment in use is not only a requirement of the safety production department, but also a concern of the enterprise for its own life and property safety.

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