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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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List of required documents for obtaining an explosion-proof certificate

What documents are required to apply for an explosion-proof certificate, and how do customers provide explosion-proof certification documents? Shenzhen Zhongnuo Testing Technology Co., Ltd. summarizes……

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Latest requirements for applying for coal safety certification for mining equipment using lithium-ion batteries

According to the minutes of the 2022 Mining Product Explosion Protection Technology Seminar, there are several requirements for the use of lithium-ion batteries in mining equipment, including: 27. Req……

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The new version of coal safety certification and mining safety certification product catalog will be implemented on December 10, 2022

On September 15, 2022, the "Notice of the National Mining Safety Supervision Bureau on Issuing the Catalogue of Mining Products Subject to Safety Mark Management" (Mining Safety [2022] No. 1……

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