Shenzhen Zhongnuo Inspection & 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 consultation services such as application assistance and factory inspection guidance.
Application cycle for obtaining the Explosion-Proof 3C certification (excluding the time for rectification and preparation of application documents by the applicant)
Institutional review of application materials: 2 business days
2. Issue Test Tasks: Within 2 working days after the review of the documents is completed
3. Testing Cycle: Generally, issue the Testing Report within 30 working days after confirmation of sample receipt.
The delivery date is subject to the completion of the customer's provided information and the requested explosion-proof type. If modifications are made during the testing process, the time for modifications will not be included. For composite types or tests with complex and lengthy project cycles, the testing time will be extended.
4. Factory Audit: Arrange factory audit within 3 working days after issuing the Testing Report. Complete the factory audit within 5 working days.
5. Frequency of Certification: After the submission of the type test and factory reviewing report, the institution conducts a 5-workday review. Upon successful review, a Certificate is issued.

What explosion-proof certifications are required for explosion-proof products? What are the institutions for applying for explosion-proof certifications?
Currently, the certification models for explosion-proof products entering the market in China are primarily three in number.
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 audits are required.
3. Coal Mine Safety Certification, for explosion-proof equipment used underground in coal mines, featuring product testing and factory audit certification methods.
ZheNuo Inspection is an institution that offers consulting services for explosion-proof certification applications.
We offer a one-stop service for explosion-proof certification and coal safety certification, including product explosion-proof design and modification, drawing evaluation, application, and factory audit.
Familiar with certification standards and procedures, with rich case studies and experience. Feel free to DM us!

Can a foreign explosion-proof certification be converted to an explosion-proof CCC certification? What documents are required?
ZhongNuo Inspection: No, the overseas explosion-proof certification Testing unit is not our CCC laboratory, therefore, the issued Report is not recognized.
In the future, any imported products listed in the CCC catalog must undergo the CCC certification in China.

What standards are used for explosion-proof certification? What are the technical requirements?
An explosion-proof type is a type of explosion-proof design for electrical equipment.
The housing is designed to withstand explosive mixtures entering the interior through the housing joint surfaces or structural gaps, without damage upon internal explosion.
And cause ignition of an explosive gas atmosphere formed by one or more gases or vapors.
The explosion-proof housing must possess both anti-explosion and explosion-proof capabilities. Generally, the outer casings of products designed for explosion-proof purposes are rather bulky.
Products and equipment suitable for fixed installation and use.
Explosion-proof junction width, gap, and roughness: the three key elements of explosion-proof housing design.
Design requirements for explosion-proof three elements vary depending on the different explosive gas environments used in Class I mining, non-mining Class IIA, IIB, and IIC.
Refer to the design standards of GB/T3836.1 and GB/T3836.2 for specifics.
ZhongNuo Inspection has long focused on explosion-proof product design, testing, and certification services.
We have a dedicated team in the explosion-proof field, well-versed in explosion-proof standard requirements.
We offer explosion-proof housing design, drafting, modification guidance, certification agency services.
If you have a similar need, feel free to consult Shenzhen Zhongnuo Testing Technology Co., Ltd. anytime!
Explosion-proof 3C Certification Business Consultation Services - Shenzhen Zhongnuo Testing Technology Co., Ltd.