Shenzhen Zhongnuo Testing Technology Co., Ltd. specializes in consulting services for explosion-proof CCC certification. We have an extensive portfolio of consulting cases in the field of explosion-proof 3C certification. We are well-versed in the application process and technical requirements for explosion-proof 3C certification, and can provide clients with consulting services such as application assistance and factory audit guidance.
How to apply for an explosion-proof certificate? Which units issue explosion-proof certificates?
The explosion-proof certificate is a certification that ensures the safety of equipment used in explosive environments.
The certification standards are the GB/T 3836 series. The process for an enterprise to apply for an explosion-proof qualification certificate is quite simple.
Please provide the electrical schematic, assembly drawing, structural drawing, product manual, and corporate standards documentation for the product.
Provide samples for explosion-proof testing that are consistent with the provided drawings and documentation. Upon passing the test,
You can then issue the Explosion-Proof Testing Report and Explosion-Proof Compliance Certificate.
Currently, the main institutions issuing explosion-proof certificates include Nanyang CNEX, Tianjin PCEC, Shanghai NEPSI, various Coal Research Institutes, Suzhou Electric Science Institute, etc.
These institutions all possess comprehensive Certificates, with 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 robot products.
Welcome to reach out to Shenzhen ZhongNuo Inspection & Technology Co., Ltd. for detailed communication at any time!

Can coal safety certification be converted to explosion-proof 3C certification? - Answer from Shenzhen ZhongNuo Testing Technology Co., Ltd.
In accordance with the announcement, as of October 1, 2020, certain explosion-proof electrical equipment has been transferred to the mandatory product certification catalog.
It is the CCC certification. Products under the explosion-proof 3C certification category obtain the explosion-proof CCC certification by undergoing a "type test + factory audit" certification process.
Coal Safety Certification is a shorthand for Coal Mine Safety Certification, which is a mandatory certification implemented by the Safety Standardization Center for all types of products and equipment used underground in coal mines.
The certification method combines "type testing" with "factory audit."
Currently, mandatory product certification bodies and coal safety certification bodies are under different departments, with no mutual recognition between them.
Coal safety certification and explosion-proof 3C certification are independent of each other.
The coal safety certification or the explosion-proof 3C certification cannot be substituted or converted for each other; they must be applied for separately.

Electrical equipment used in explosive gas environments requiring a防爆CCC certification standard
Ex-proof Type: Intrinsically Safe
Applicable explosion-proof standards:
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”
Ex-proof Type: Explosion-proof
Applicable explosion-proof standards:
GB/T 3836.1-2021 Explosive Atmospheres Part 1: Equipment General Requirements
GB/T 3836.2-2021 Explosive Atmospheres, Part 2: Equipment protected by a flameproof "d" enclosure
Ex-proof Type: Increased Safety Type
Applicable explosion-proof standards:
GB/T 3836.1-2021 Explosive Atmospheres Part 1: Equipment General Requirements
GB/T36.3-2021 Explosive Atmospheres Part 3: Equipment Protected by an "e" Type of Increased Safety
Explosion-proof Type: Positive Pressure Type
Applicable explosion-proof standards:
GB/T 3836.1-2021 Explosive Atmospheres, Part 1: Equipment – General Requirements
GB/T 3836.5-2021 Explosive Atmospheres, Part 5: Equipment protected by positive pressure shell "p"
Explosion-proof Type: Immersed Oil Type
Applicable explosion-proof standards:
GB/T 3836.1-2021 Explosive Atmospheres, Part 1: Equipment, General Requirements
GB/T 3836.6-2017 Explosion-proof Environment Part 6: Equipment protected by liquid immersion type “o”
Ex-proof Type: Sand-filled
Applicable explosion-proof standards:
GB/T 3836.1-2021 Explosive Atmospheres, Part 1: Equipment, General Requirements
GB/T 3836.7-2017 Electrical Equipment for Explosive Gas Atmospheres – Part 7: Sand-filled “q” Type
Explosion-proof Type: "N" Type
Applicable explosion-proof standards:
GB/T 3836.1-2021 Explosive Atmospheres, Part 1: Equipment, General Requirements
GB/T 3836.8-2021 Explosive Atmospheres, Part 8: Equipment protected by "n" type of protection
Explosion-proof Type: Encapsulation Type
Applicable explosion-proof standards:
GB/T 3836.1-2021 Explosive Atmospheres, Part 1: Equipment, General Requirements
GB/T 3836.9-2021 Explosive Atmospheres, Part 9: Equipment protected by "m" type encapsulation

We generally refer to explosion-proof product certification as the safety certification for explosion-proof products entering the market, commonly known as explosion-proof certification, and the certificate issued is called the Explosion-Proof Compliance Certificate.
CCC Certification, which stands for "China Compulsory Certification," is abbreviated as CCC.
The CCC certification mark is "CCC," which is recognized and supervised by the Certification and Supervision Commission according to the "Regulations for Compulsory Product Certification."
Regulation No. 5 of the China Quality Supervision, Inspection and Quarantine Commission on product certification system.
Explosion-proof 3C Certification Business Consultation Services - Shenzhen Zhongnuo Testing Technology Co., Ltd.