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 we can provide services such as application assistance and factory audit guidance for this certification.
What explosion-proof certifications are required for explosion-proof products? What are the organizations for explosion-proof certification applications?
Currently, the certification models for explosion-proof products entering the Chinese market are mainly three.
1. Provide explosion-proof certification for equipment used in environments with explosive gases and combustible dust in non-coal mines.
Just need to conduct product testing, and a certificate will be issued upon passing.
2. Conduct explosion-proof 3C certification; for products listed under the explosion-proof 3C category, product testing and factory inspections are required.
3. Coal Mine Safety Certification, for explosion-proof equipment used underground in coal mines, involving product testing and factory audit certification process.
Zhenuo Inspection is an institution that provides explosion-proof certification application consulting.
We offer a one-stop service for explosion-proof certification and coal safety certification, including product design modification, drawing assessment, application, and factory inspection.
Proficient in certification standards and procedures, with extensive case studies and experience. Feel free to send us a private message!

Basic Procedure for Applying for a Explosion-Proof CCC Certification
A. Submit a 3C Certification application for explosion-proof electrical equipment online. The documents to be submitted include:
(1) Certificate Application Form
(2) Certification of registrant, producer, and production enterprise;
(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 Conformity for test samples, factory inspection reports, etc.
(6) Manufacturer Information Sheet (required for factory inspections)
(7) ODM Model: Provide the relevant materials as required by the supplementary regulations for the ODM Model in CQM02-C1 "Supplementary Regulations for ODM Model in CCC Certification," such as the ODM Agreement.
(8) OEM Model: OEM agreements, etc.
(9) Proof of relevant change projects for change applications.
(10) Additional required documents.
B. Review application documents
Institutions typically review application documents within 2 working days.
C. Laboratory Testing
Upon approval of the review documents by the institution, schedule the Testing task to the lab within 2 business days.
Laboratory Selection:
Sample Submission Requirements: Samples to be submitted according to laboratory specifications
D. Test Cycle
Timeline: Generally, issue the Testing Report within 30 working days after confirmation of sample receipt, subject to the completeness of the provided documents and the requested explosion-proof type. If there are modifications during the testing process, the modification time is not included. For composite types or tests with complex projects and longer cycles, the testing time will be extended.
F. Provide Testing Report
(1) Non-compliance with mandatory testing must be rectified within 3 months.
(2) If the Testing Report remains unissued for 12 months post-issuance due to the client's reasons, the Testing Report shall become invalid.
G. Initial Factory Inspection
一般在型式试验结束后3 working days内安排初始工厂检查。
(2) Review takes 2-6 person-days, calculated based on unit quantity and relevant personnel of the company.
(3) Audit Criteria: Factory quality assurance capabilities and product consistency.
(4) Corrective actions for non-conformities in factory inspections must be completed within 40 days.
(5) Factory inspection results to be reviewed within 5 working days
H - Frequent Certificates
The organization conducts a 5-workday review following the submission of the type test and factory reviewing report, issuing a Certificate upon successful approval.

What should be noted when applying for a防爆3C certification?
Is the product design in accordance with the GB/T3836 standards?
2. Can certification documents be provided?
(1) Technical Drawings: Includes circuit diagrams, assembly drawings, structural drawings, PCB layouts, numbering diagrams, BOM (Bill of Materials) sheets, etc.
(2) Product Corporate Standards and Instructions
(3) Product Name, Model Number, Applicant Company
(4) Samples: Complete unit samples, batteries, uncapped circuit boards, non-metallic material surface blocks, etc.
(5) Additional Materials: Casting Sealing Process Documents, Copy of Ex Component Explosion Proof Certificate, Battery Testing Report, Shell Material Testing Report, Wireless Transmission Power Testing Report, etc.
Not all of the above information is required; it depends on the actual structure of the product and its explosion-proof type.
3. Do you have engineers with explosion-proof technology expertise?
4. Are there specific requirements for the certification body and explosion-proof rating?
5. Next is the budget for the costs.
For more details, please DM Shenzhen Zhongnuo Inspection & Technology Co., Ltd. for communication!

Requirements for application materials for the explosion-proof CCC certification:
1. Product Drawings and Documents: When an enterprise applies for a explosion-proof certification for intrinsically safe electrical equipment, it should provide assembly drawings, circuit diagrams, printed circuit board diagrams, silk-screening diagrams, material lists of components, and label diagrams, etc. For non-intrinsically safe electrical equipment, the technical documents submitted for inspection should include drawings that reflect the explosion-proof performance of the sample (including assembly drawings and component drawings). If the assembly drawing can clearly indicate the explosion-proof parameters and structure of the product, only the assembly drawing needs to be submitted for inspection.
2. Technical Documentation: Includes corporate standards/technical requirements. The corporate standards/technical requirements for products should be written in the prescribed format, and their content should not only include performance requirements of the product but also cover relevant aspects of explosion-proof: such as basic parameters, explosion-proof markings, operating environmental conditions, explosion-proof performance requirements, related tests for explosion-proof performance, and markings related to explosion-proof.
3. Additional Information: For products with adhesive bonding or casting, provide the model names, performance descriptions, and relevant process documents for the adhesives and casting agents. For plastic enclosures, supply the material and corresponding performance documents. Battery-powered products require the battery specification sheets.
Explosion-proof 3C Certification Business Consultation Services - Shenzhen ZhongNuo Testing Technology Co., Ltd.