Shenzhen Zhongnuo Testing Technology Co., Ltd. specializes in explosion-proof CCC certification consulting services, boasting 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 assistance and factory audit guidance.
Requirements for explosion-proof 3C certification application:
(1) Certification Application Form
(2) Certified Applicant, Manufacturer, and Producer Registration
(3) Product Description, including: technical specifications, structure, model descriptions, list of key components and materials, and explanations of differences between products of different specifications within the same certification unit;
(4) Technical documents, mainly including: product standards (or technical specifications), manuals, product drawings related to explosion-proof performance, etc.
(5) Certificate of Compliance for test samples, Factory Testing Report, etc.
(6) Manufacturer Information Sheet (required for factory inspection)
(7) ODM Model: Provide the corresponding documents as required by the supplementary regulations of CQM02-C1 "Supplementary Regulations for the ODM Model in CCC Certification," such as the ODM agreement.
(8) OEM Model: OEM agreements, etc.
(9) Documentation for the relevant change projects, pertaining to change requests.
(10) Any other required documents.

Basic Content of Factory Audit for Explosion-Proof CCC Certification:
A. Factory inspection conclusions are typically categorized into four types: "Factory Inspection Passed," "Written Verification Passed," "On-Site Verification Passed," and "Factory Inspection Failed."
"Written Verification Passed" refers to the case where there are non-conformities, the factory takes corrective actions within the specified timeframe, and the certification body verifies the written submission effectively, resulting in a pass; "On-site Verification Passed" refers to the situation where there are non-conformities, the factory implements corrective measures within the stipulated period, and the certification body validates the on-site actions effectively, leading to a pass.
B. Factory audits typically require rectification of any non-conformities 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 products, such as changes in product structure or critical components, whether they meet the specified requirements.
(4) Determine if the certified products have defects that could lead to quality safety accidents.
(5) Is the implementation of change and consistency control for certified products effective?
(6) Did the factory take corrective actions during the suspension of the certification certificate?
(7) Proper use of the CCC mark or certificate, including counterfeiting, renting, lending, misusing, selling, transferring the CCC mark or certificate, and using the CCC mark fraudulently; Continuing to use the CCC mark or certificate after being informed of its revocation or suspension; Applying the CCC mark to a product without a valid CCC certificate on purpose; Other deliberate illegal uses of the CCC mark or certificate;
(8) Does the factory have any instances of obtaining certification certificates through fraudulent or corrupt practices?
(9) Are there any other circumstances that directly threaten product consistency or compliance with standards?

Which 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 for electrical equipment impose limitations on current, voltage, capacitance, inductance, etc., making it only suitable for low-power devices.
Additionally, there are specific requirements for the power supply method of intrinsically safe equipment, plastic enclosures, and wireless transmitters.
The product application for intrinsic safety certification requires the submission of the product's schematic diagram, PCB diagram, etc.
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 modifications. We have extensive experience in designing and obtaining certifications for intrinsic safety ia, ib, and ic levels.
If you require certification in this area, welcome to DM Shenzhen Zhongnu Inspection Technology Co., Ltd.!

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 example, there are EMC directives, LVD directives, MD directives, ATEX directives, etc.
Different products are subject to different certification directives; the ATEX directive is 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 various 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.
Learn more about ATEX certification and feel free to DM Shenzhen ZhongNuo Testing Technology Co., Ltd. anytime!
Explosion-proof 3C Certification Business Consultation Services - Shenzhen Zhongnuo Testing Technology Co., Ltd.