Shenzhen Zhongnuo Testing Technology Co., Ltd. is based in South China and specializes in explosion-proof certification and coal safety certification application consulting services, offering one-stop explosion-proof technology consulting services.
What are the requirements for enterprises to apply for explosion-proof certification -- Shenzhen ZN Testing Technology Co., Ltd.
For companies, applying for domestic explosion-proof certificates does not impose any special requirements on the enterprise (except for the explosion-proof 3C certification).
Primarily, it's to check if the product meets the explosion-proof standards and whether the required certification documents can be provided.
If the product falls under the explosion-proof 3C certification category, the applicant must have a production factory (OEM/ODM is also acceptable).
Because the explosion-proof 3C certification is a certification model that includes both type testing and factory audit.
In addition to product testing, an annual inspection of the manufacturing facility is required.

What explosion-proof certifications are required for explosion-proof products? What consulting agencies are available for explosion-proof certification applications?
Currently, the certification models for explosion-proof products entering the Chinese market mainly consist of three types.
1. Issue explosion-proof certification for equipment used in environments with explosive gases and combustible dust in non-coal mines; simply conduct product testing, and upon passing, the certificate is issued.
2. Conduct explosion-proof 3C certification; for products listed under the explosion-proof 3C category, product testing and factory audits are required.
3. Coal Mine Safety Certification, for explosion-proof equipment used underground in coal mines, involving product testing and factory audit certification.
ZhongNuo Inspection offers explosion-proof certification application consulting services. We provide a one-stop explosion-proof and coal safety certification consulting service, including product explosion-proof design, rectification, drawing evaluation, certification acquisition, and factory audit. We are familiar with certification standards and procedures, have extensive case studies and experience. Feel free to message us!

Equipment used in flammable and explosive locations in China must undergo explosion-proof certification and pass the testing requirements of the GB/T3836 series standards before being put into use.
Explosion-proof certification is a broad concept, referring to the process of obtaining an explosion-proof qualification certificate for a product. Upon passing the explosion-proof certification, a qualification certificate can be obtained.
Incorporating the防爆3C certification refers to the mandatory product certification for electrical products included in the防爆3C catalog, which covers only a portion of the explosion-proof electrical products. Electrical products within the防爆3C catalog must undergo防爆3C certification and obtain the CCC certificate. Explosion-proof products outside the防爆CCC catalog must obtain an explosion-proof compliance certificate.
Shenzhen ZhongNuo Testing has long been dedicated to acting as an agent and providing consulting services for explosion-proof certification. We specialize in offering design, testing, and certification guidance as well as agency services for explosion-proof products. We have dedicated intrinsically safe circuit design and products, and can provide intrinsic safety design, circuit evaluation, structural design, drawing guidance, and factory reviews for explosion-proof 3C certification. Our successful cases include various sensors, instruments, automation equipment, and robotic products.
Feel free to message us for detailed communication at any time!

Flammability Dust Environment Explosion-Proof Certification Standard:
GB/T 3836.1-2021 Explosive Atmospheres Part 1: Equipment General Requirements
GB/T 3836.4-2021 Explosive Atmospheres, Part 4: Equipment protected by intrinsic safety "i"
GB/T 3836.5-2021 Explosive Atmospheres, Part 5: Equipment protected by positive pressure housing "p"
GB/T 3836.9-2021 Explosive Atmospheres, Part 9: Equipment protected by "m" type encapsulation
GB/T 3836.31-2021 Explosive Atmospheres Part 31: Equipment protected by dust-protection enclosures “t”
Explosion-proof Certification Application Consulting Service - Shenzhen ZhongNuo Testing Technology Co., Ltd.