Shenzhen Zhongnuo Testing Technology Co., Ltd. specializes in explosion-proof CCC certification consulting services and boasts an extensive portfolio of consulting cases in the field. We are well-versed in the application process and technical requirements for explosion-proof 3C certification, and can provide clients with consulting services including application assistance and factory audit guidance.
What's the difference between the corrosion protection grade, protection grade, and explosion-proof certification grade?
Many corporate clients are often in the dark about the required anti-corrosion, protection, and explosion-proof certification levels for their products.
Due to the products' grades being differentiated by only one character, and both referring to the same aspect of the product.
Similar yet different, what are the differences between them?
Corrosion prevention involves methods to protect metals prone to rust, thereby extending their service life. Common approaches include physical, chemical, and electrochemical corrosion prevention. There are typically five levels: indoor F1, F2, and outdoor WF, WF1, and WF2.
Ingress Protection (IP) rating, commonly referred to as IP rating, refers to the dust and water resistance level of the equipment, usually composed of "IP" followed by two digits.
The explosion-proof grade generally refers to the equipment's explosion-proof certification level. 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 product's applicable explosion-proof area, gas/dust group, temperature group, and equipment protection level.
Clearly, these three concepts belong to different fields and are distinct from each other.
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Required documents for applying for a防爆 certification conversion to a防爆CCC certificate
A. Explosion-proof Certificate and Testing Report
B. Drawings (assembly drawings, electrical schematics, etc., related to safety)
C. Chinese user manual, Chinese label, and warning signs
D. Relevant material reports, key components and materials list
E. Description of Differences Among Various Models Within the Same Application Unit Product
F. Product Description
G. Product Certification Application Form/ Product Certification Change Application Form
H. Manufacturer Information Sheet

Basic contents of factory audit for explosion-proof CCC certification:
A. Factory inspection conclusions are typically categorized into four types: "Factory Inspection Passed," "Documentation Verification Passed," "On-Site Verification Passed," and "Factory Inspection Failed."
"Written Verification Passed" refers to the case where there are non-conformities, and the factory takes corrective actions within the specified time frame. After the certification body validates the written verification, the factory passes the inspection. "On-site Verification Passed" refers to the situation where there are non-conformities, and the factory implements corrective measures within the stipulated time. After the certification body validates on-site, the factory passes the inspection.
B. Factory inspections: any non-compliant items typically require整改 within 40 days.
C. Basic Review Items
(1) Specify if the test results are satisfactory.
(2) Are the key resources sufficient to ensure product consistency or compliance with standards?
(3) Consistency issues with the product, such as changes in product structure or critical components, whether they meet the specified requirements.
(4) Existence of defects in certified products, which may lead to quality safety accidents.
(5) Is the effective implementation of changes to certified products and consistency control in place?
(6) Did the factory take corrective measures during the suspension of the certification certificate?
(7) Proper use of the CCC mark or certificate, including counterfeiting, renting, lending, misusing, buying, selling, transferring the CCC mark or certificate, and unauthorized use of the CCC mark; Continuing to use the CCC mark or certificate after being informed of its revocation or suspension; Applying the CCC mark to products without obtaining the CCC certificate; Other deliberate illegal uses of the CCC mark or certificate.
(8) Does the factory obtain certification certificates through deceptive or corrupt practices?
(9) Are there any other circumstances that directly threaten product consistency or compliance with standards?

What is the difference between ATEX certification and CE certification?
CE certification is a mandatory certification for the EU market; all equipment and products entering the EU market must pass the relevant CE directive certification.
For instance, there are EMC directives, LVD directives, MD directives, ATEX directives, and so on.
Different products require different certification directives, with the ATEX directive specifically addressing explosion-proof equipment and products.
ATEX certification can be likened to 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 various standard series.
For instance, EN 60079.1 is the standard for explosion-proof, EN 60079.7 is the standard for increased safety, and EN 60079.11 is the standard for intrinsic safety, etc.
Learn more about ATEX certification and feel free to message Shenzhen ZhongNuo Testing Technology Co., Ltd. anytime!
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