I often consult with upstream manufacturers, and the product I produce is a hardware component, not an electrical one. Because it will be purchased by users to be matched with instruments and equipment, the final use environment may contain explosive gases or dust, wasCan the user obtain the explosion-proof certification upon request? What should I do?

Firstly, regarding this type of consultation, preliminaryunderstandcustomerThe product described is called in the explosion-proof industryExComponents.becauseExThe components are ultimately used in explosive hazardous areas, so they must also obtain an explosion-proof certificate.

AsExThe data requirements and process for applying for explosion-proof certification for components are basically the same as those for ordinary explosion-proof electrical equipment.

For example, basic information such as product structure, appearance, and performance needs to be provided. Usually, just send the product manual (with pictures attached), and what does the user require the manufacturer to takeExplosion proof gradeIt also needs to be clearThis wayIt willCompare the difference between the product and the desired explosion-proof level, determine the difficulty level of implementation, and provide a rectification plan based on this.

The applicable standards for Ex component explosion-proof certification are also in accordance with national explosion-proof standardsGB/T 3836Series standards. differentExplosion proof typeDifferent parts of the applicable standards.

It is worth noting that,ExThe explosion-proof mark of the component does not have a temperature group,

Taking a single metal joint as an example, after designing and producing samples according to explosion-proof standards and submitting them for inspection, the common product name is explosion-proof cable connection device, and the model is determined by the manufacturer. Multiple representative models can be dragged, and other models that can be represented by the submitted samples can be reflected on one certificate,Explosion proof markMostly forEx db IIC T4 Gb/Ex tb IIIC T130°C DbThe explanation for this demonstration explosion-proof sign is thatExComponents may be used in hazardous gas environments, hazardous dust environments, or a combination of both. If only one type of environment is used, it needs to be tested and certified again when encountering other usage environments. This process is repeated and costly, which is time-consuming, labor-intensive, and expensive compared to using a composite type at once.

Ex components are not used alone, but are often parts or components, such as junction boxes, explosion-proof enclosures, cable entry devices, terminal blocks, stuffing boxes, wiring boxes, flexible connecting pipes, gland heads, etc. Explosion proof components or components are all referred to asExComponents. With the development of industries such as petroleum, chemical, coal, metallurgy, textile, grain and oil food processing, dust, environmental protection, etc,Explosion proof electrical equipment such as explosion-proof motors, explosion-proof electrical appliances, explosion-proof instruments, explosion-proof lamps, etcPreparedmarketHas a high growth rate,ExThe demand for components is also increasing. Overall, the increase in industrial safety awareness has raised higher requirements for product quality, while also requiring coordination with the environment to maintain industrial safety while ensuring performance.

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