Safety hazards of explosion-proof electric heaters

Safety hazards of explosion-proof electric heaters

Although explosion-proof electrical products in our country have been developing for so many years, there has been almost no significant improvement in their structure and quality. It is an undeniable fact that our product performance is lagging behind. In foreign countries, many products have advanced structures and processes that are refreshing to us, but our products have not made significant improvements for decades. The root cause is due to our outdated processes, equipment, and product technology. Many companies are unwilling to increase investment in technology, tooling, and new product development, satisfied with the status quo, while others simply do not want to improve their products, models, and improvements, and only pursue immediate benefits. In addition, our products do not pay much attention to the appearance design and processing, and the products we produce are always rough and unattractive. In fact, with just a little effort, we can definitely do better. In addition, there are many unreasonable phenomena in the structure of explosion-proof electrical appliances in China. According to the investigation, such a structure has a 100% gap that is out of tolerance. Some manufacturers, in pursuit of small size (material saving), make the space inside the shell very small, barely able to fit the components inside, and some have reached the point where it is extremely difficult to change the line. Such a small space is extremely detrimental to both electrical performance and product performance. Some manufacturers do not have strict requirements for the conditions that affect the explosion-proof surface, explosion-proof gap, surface roughness, and explosion-proof surface length in explosion-proof products, and there are many problems. For example, the length from the screw hole to the edge of the explosion-proof joint surface, the design and processing of blind holes, the flatness of the explosion-proof surface, and the treatment of surface sand holes.

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