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Precautions and documentation process for obtaining an explosion-proof certificate | Zhongnuo Testing

When applying for an explosion-proof certificate, attention should be paid to determining the explosion-proof mark of the product, whether drawings and information can be provided, and cooperating wit……

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How to apply for overall explosion-proof certification？

In practical production, we often use complex explosion-proof electrical equipment or devices that are composed of several structures in combination to achieve a certain function, that is, combination……

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Certification Encyclopedia | Summary of Explosion proof Product Certification Standards

Explosion proof type: Intrinsic safety type Applicable explosion-proof standards: GB/T 3836.1-2021 Explosive Environments Part 1: General Requirements for Equipment GB/T 3836.4-2021 Explosive Environm……

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Three criteria for evaluating explosion-proof intrinsically safe circuits

Intrinsically safe circuits should meet the following three basic criteria: a) According to the protection level and equipment category specified in the electrical equipment regulations, spark ignitio……

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Technical points for obtaining explosion-proof certification for gas detectors

Gas detectors are common explosion-proof products, including intrinsic safety, explosion-proof, and both explosion-proof and intrinsic safety types. The choice of explosion-proof type depends on the s……

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Material requirements for metal shells and shell metal components for product explosion-proof certification

Due to the instability of plastic shells and materials, as well as the risk of electrostatic charge accumulation, most explosion-proof products adopt metal shells or metal components to reduce the occ……

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GB/T 3836 Explosion proof Certification Standard | Domestic Explosion proof Certification

GB/T 3836.1-2021 Explosive Environment Part 1: General Requirements for Equipment GB/T 3836.2-2021 Explosive Environment Part 2: Equipment Protected by Explosion proof Shell "d" GB/T 3836.3-……

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Explosion proof marking instructions for Ex equipment used in combustible dust environments according to the new GB/T3836 standard

The new version of GB/T3836 series standards has been officially implemented on May 1, 2022. The difference between the old and new standards is a concern for many corporate customers. The explosion-p……

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Basic principles of explosion-proof certification | Handling of explosion-proof qualification certificate

Explosion proof is one of the most commonly used types of explosion-proof products in the market, and the applicable standards are GB/T 3836.1 and GB/T 3836.2. The main way to achieve explosion preven……

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How to apply for an intrinsic safety explosion-proof certificate

The explosion-proof certificates we have recently obtained for temperature and vibration sensors, remote control transmitters, methane monitoring devices, Bluetooth beacons, walkie talkies, and other ……

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