Shenzhen Zhongnuo Testing Technology Co., Ltd. specializes in consulting services for explosion-proof certification and coal safety certification.
What are the requirements for applying for the Coal Safety/Mineral Safety Mark? -- Shenzhen Zhongnuo Testing Technology Co., Ltd.
Meets coal mine safety production requirements, in compliance with current standards, industry safety standards, and the "Coal Mine Safety Regulations."
(2) Proper and complete technical documents are available.
(3) New products produced with new materials, technologies, and processes should have an evaluation opinion from relevant departments.
(4) Other relevant conditions.

Preparation of coal safety and mine safety certification samples -- Shenzhen ZhongNuo Testing Technology Co., Ltd.
The prototype is manufactured according to the design drawings. The project team establishes the production inspection outline based on the company's and industry standards. The Quality Assurance Department completes the production inspection according to the production inspection outline. Note: In addition to preparing the prototype, electrical products also require the preparation of electrical components for intrinsic safety testing, such as intrinsic safety power supplies, sensors, etc.; and electrical performance testing components such as contactors, circuit breakers, and disconnectors, etc.

We now have the explosion-proof 3C certification; how can we convert it to the Coal Mine Safety or Mine Safety certification? -- Shenzhen ZhongNuo Inspection & Testing Technology Co., Ltd.
In China, explosion-proof 3C certification/examination certificate and coal safety/mining safety belong to different management systems, and the places where products are used are also different.
Two certificates belong to different certification systems and are mutually exclusive. Regardless of which certificate is held,
Additionally, all certificates must be re-applied for according to the new product application process. Similarly, if there is a Coal Safety/Miner Safety certification,
A防爆 certification or a防爆 3C certification needs to be applied for anew following the new application process as well.

What explosion-proof certifications are required for explosion-proof products? What are the institutions for applying for explosion-proof certifications?
Currently, the certification models for explosion-proof products entering the Chinese market are primarily three.
1. Issue explosion-proof certificates for equipment used in environments with explosive gases and combustible dust in non-coal mines, which only require product testing; upon passing, the certificate is issued.
2. Perform explosion-proof 3C certification; for products listed under the explosion-proof 3C category, product testing and factory inspection are required.
3. Coal Mine Safety Certification, for explosion-proof equipment used underground in coal mines, involving product testing and factory audit certification process.
ZhongNuo Inspection is an institution offering explosion-proof certification application consulting.
We offer a one-stop service for explosion-proof certification and coal safety certification, including product explosion-proof design and modification, drawing evaluation, certification acquisition, and factory audit.
Familiar with certification standards and procedures, with extensive case studies and experience. Feel free to DM us!
Coal Safety Certification and Mine Safety Certification Consultancy Services - Shenzhen Zhongnuo Testing Technology Co., Ltd.