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What are the current modes of explosion-proof certification in China?

Explosion proof certification is the process of determining whether equipment meets the requirements of explosion-proof standards, conducting type tests and routine tests for adaptation, and issuing relevant certificates of conformity. The certificate can be for Ex devices or Ex components. countryExplosion proof standardGB/T 3836 specifies that manufacturers shall comply with the specialized explosion-proof type standards listed in GB/T 3836The manufactured electrical equipment must be sent to the nationally authorized quality supervision and inspection agency for explosion-proof inspection according to the corresponding standards and obtain an explosion-proof certificate. This means that explosion-proof products must obtain relevant explosion-proof certifications.

At present, there are three types of explosion-proof certification modes in China:

1. Explosion proof certificate system

Applicable products: Electrical equipment and non electrical equipment (explosion-proof) used in non mine areas with explosive gases and dust3cExcluding product catalogs)

Certification mode: Product testing

Certification: Explosion proof Certificate

Certification standards:GB/T 3836Series standards

Certificate Validity Period:5year

Annual review: None

Issuing agencies: There are more than ten qualified explosion-proof certification issuing agencies nationwide, such as NanyangCQSTShanghaiNEPSIShen Chuan Institute, Jiamusi Institute, Guangzhou Special Inspection Institute, Coal Science Institute, etc.

2. Explosion proof 3C certification system

Applicable products: Explosion proof3cCatalog of Electrical Equipment

Certification mode: Type test Factory review

Certification certificate:CCCcertificate

Certification standards:GB/T 3836Series standards

Certificate Validity Period:5year

Annual review: Annual review

Issuing Authority: Currently available6Home Explosion proofCCCThe issuing agencies are NanyangCQST,ShanghaiNEPSI, TianjinPCEC，CQC，CQMJiamusi office.

3. Coal safety/mining safety certification system.

Applicable products: Used for various electrical and non electrical equipment in coal mines and non coal mines underground

Certification mode: Type test Factory review

Certification standards:GB/T 3836Series standards and performance standards for mining equipment industry products

Certification: Safety Mark Certificate for Mining Products

Certificate Validity Period:5year

Annual review: Annual review

Issuing Authority: National Safety Standards Center

Shenzhen Zhongnuo Testing Technology Co., Ltd., as a professional explosion-proof certification and coal safety certification organization in China, has provided various product certification services for customers, including intelligent safety helmets, sensors, transmitters, etcAGVSmall car, handheld terminal, walkie talkie, combination product, pry mounted refueling device, gas detector, smart wristbandRFIDProducts such as labels and dust removal equipment have rich experience in explosion-proof design and certification, and are familiar with the factory's explosion-proof production review system standards and processes, providing strong support for the rapid certification of explosion-proof products for enterprises.

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