Shenzhen Zhongnuo Inspection & Technology Co., Ltd. is based in South China and specializes in explosion-proof certification and coal safety certification application consulting services, offering a one-stop explosion-proof technology consulting service.
How to obtain an explosion-proof certificate? Which units issue explosion-proof certificates?
The Explosion-Proof Certificate is a safety certification document for equipment used in explosive environments, adhering to the GB/T 3836 series standards.
The process for an enterprise to apply for an explosion-proof certification is relatively simple. It requires providing documents such as the product's electrical schematic, assembly drawing, structural diagram, product manual, and enterprise standards, along with samples that match the drawings for explosion-proof testing.
Pass the test, and we can issue the explosion-proof inspection report and the explosion-proof certification.
Currently, the main issuing bodies for explosion-proof certification include Nanyang CNEX, Tianjin PCEC, Shanghai NEPSI, various Coal Research Institutes, Suzhou Electric Science Institute, etc.
These institutions all have comprehensive certification qualifications, with the certificates having equal validity.
Although the process is relatively simple, it's not easy to meet the design requirements of the GB/T 3836 series standards for the product.
If the company is new to explosion-proof product design and certification, Shenzhen Zhongnuo Testing Technology Co., Ltd.
We offer specialized intrinsically safe circuit design and products, providing services such as intrinsically safe design, circuit evaluation, structural design, and drawing guidance.
Successful cases include various sensors, instruments, automation equipment, and robotic products.
Welcome to DM Shenzhen Zhongnuo Testing Technology Co., Ltd. for detailed communication at any time!

If you have any questions or needs regarding ATEX certification, please feel free to consult Shenzhen Zhongnuo Testing Technology Co., Ltd.

Domestic explosion-proof certification models are divided into three cases -- Shenzhen Zhongnuo Testing Technology Co., Ltd.
1. Explosion-proof certificate system
Applicable Products: Electrical and non-electrical equipment used in areas with explosive gases and dust, excluding those for mining (except for products listed in the Explosion-Proof 3C Catalogue).
Certification Mode: Product Testing
Certification Certificate: Explosion-Proof Compliance Certificate
Certificate Validity: 5 years
Annual Audit Required: No
2. Explosion-proof 3C Certification System
Applicable Products: Electrical Equipment Listed in the Explosion-Proof 3C Catalog
Certification Model: Combination of Type Testing and Factory Audit
Certification Certificate: CCC Certificate
Certificate Validity: 5 years
Annual Audit Required: Yes, an annual audit is required.
3. Coal Safety/Mine Safety Certification System
Applicable Products: Various electrical and non-electrical equipment for use in coal and non-coal mine environments
Certification Mode: Combination of Type Testing and Factory Audit
Certification Certificate: Mine Product Safety Mark Certificate
Certificate Validity: 5 years
Annual Audit Required: Yes, an annual audit is required

How to Apply for Explosion-Proof Certification for Enterprises:
1. Self-Application: The company applies to the certification body independently, prepares relevant documents on its own, assists in debugging the prototype independently, and modifies any parts of the documents that are not standardized. The process is relatively longer, with higher overall costs, and requires more time and effort.
2. Agent Application: Refers to the entire consultation and application process with Shenzhen ZhongNuo Testing Technology Co., Ltd., including material modifications, prototype debugging, and progress coordination, all handled by the consulting agency. It offers a good guarantee on progress, quick certificate acquisition, manageable overall costs, and saves time and effort.
Explosion-proof Certification Application Consultancy Services - Shenzhen ZhongNuo Testing Technology Co., Ltd.