Shenzhen Zhongnuo Testing Technology Co., Ltd. specializes in consulting services for explosion-proof CCC certification. We have a wealth 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 for explosion-proof 3C certification and factory audit guidance.
What's the difference between corrosion protection grade, protection grade, and explosion-proof certification grade?
Many corporate clients are often confused about the required corrosion resistance, protection class, and explosion-proof certification levels for their products.
Due to the one-character difference in names, both refer to a specific grade of the product.
Similar yet different, what are the differences between them?
Corrosion prevention involves measures to protect metals prone to rust, thereby extending their service life. Typically, methods such as physical, chemical, and electrochemical corrosion prevention are employed. There are five common levels: indoor F1, F2, and outdoor WF, WF1, and WF2.
Protection rating, commonly known as IP rating, refers to the dust and water resistance level of the equipment, usually consisting of "IP" followed by two digits.
The explosion-proof grade generally refers to the explosion-proof certification level of the equipment. Each electrical equipment applying for an explosion-proof certification will have a corresponding explosion-proof mark, including the explosion-proof type and grade. The explosion-proof grade indicates the explosion-proof area applicable to the product, gas/dust group, temperature group, and equipment protection level, etc.
Clearly, these three concepts belong to different fields and are distinct from each other.
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What is the difference between ATEX certification and CE certification?
CE certification is a mandatory certification in the EU market, and all equipment and products entering the EU market must pass the relevant CE directive certification.
For instance, we have EMC directives, LVD directives, MD directives, and ATEX directives, etc.
Different products require different certification directives, with the ATEX directive specifically for explosion-proof equipment and products.
ATEX certification can be considered as the CE certification for explosion-proof products.
Each directive has different applicable standards; the ATEX directive applies to the EN60079 series.
Different explosion-proof types are applicable to different standard series.
For example, EN 60079.1 is the standard for explosion-proof, EN 60079.7 is the standard for increased safety, EN 60079.11 is the standard for intrinsic safety, and so on.
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What products can apply for the intrinsically safe explosion-proof certificate? What are the requirements?
Benign is one type of explosion-proof protection, which limits electrical energy so that the equipment remains safe even in the event of a fault.
A type of explosion-proof protection that the energy produced is not sufficient to ignite the surrounding explosive environment.
Therefore, intrinsic safety requirements limit the current, voltage, capacitance, inductance, etc. of electrical equipment, making them suitable only for low-power devices.
Additionally, there are specific requirements for the power supply method of intrinsically safe equipment, plastic housing, and wireless transmission.
To apply for ATEX certification for the product, the original schematics and PCB layouts of the product must be provided.
ZhongNuo Inspection has dedicated engineers specializing in intrinsically safe circuit and structural design.
We offer technical consulting services for explosion-proof circuit design, drafting, and modification. We have extensive experience in designing and obtaining certifications for intrinsically safe ia, ib, and ic explosion-proof ratings.
If you need certifications in this area, welcome to DM Shenzhen ZhongNuo Inspection & Technology Co., Ltd.!

Is explosion-proof product certification the same as CCC certification? — An Answer from Shenzhen Zhongnuo Testing Technology Co., Ltd.
Explosion-proof product certification generally refers to the safety certification for explosion-proof products entering the market, commonly known as explosion-proof certification, with the certificate being called an Explosion-Proof Compliance Certificate.
CCC Certification, which stands for "China Compulsory Certification," is abbreviated as CCC.
The CCC certification mark is denoted as "CCC" and is a product certification system established by the Certification and Supervision Commission according to the "Administrative Regulations for Compulsory Product Certification" (Order No. 5 of the China Quality Supervision and Inspection and Quarantine Commission).
As of October 1, 2019, explosion-proof electrical equipment was officially included in the mandatory product certification category under market supervision.
Means that some explosion-proof electrical equipment must be compulsorily applied for a 3C certification before entering the market for operation and circulation.
Part of the explosion-proof product certifications are included in the CCC certification scope.
But explosion-proof product certification does not equal to CCC certification.
Only products listed in the防爆CCC Certification Catalog need to apply for a CCC certification.
Extraneous to the catalog, explosion-proof products only require an explosion-proof certification.
Consulting Services for Explosion-proof 3C Certification - Shenzhen ZhongNuo Inspection & Testing Technology Co., Ltd.