Shenzhen Zhongnuo Testing Technology Co., Ltd. specializes in explosion-proof CCC certification consulting services and boasts an extensive portfolio of consulting cases in this field. We are well-versed in the application process and technical requirements for explosion-proof 3C certification, offering services such as application assistance and factory audit guidance.
Intrinsically Safe 3C Certification is a mandatory certification for electrical equipment listed in the Intrinsically Safe 3C Catalog.
A combination of type testing and factory audit methods is adopted. Currently, the mandatory certification for some explosion-proof products has been implemented for over a year.
Many corporate clients are gradually becoming familiar with and encountering the explosion-proof 3C certification.
For detailed product catalogs, certification standards requirements, and procedures, please consult Shenzhen Zhongnuo Testing Technology Co., Ltd.!

Which institution can apply for the explosion-proof 3C certification and 3C factory audit?
Intrinsically Safe 3C Certification is applicable to the electrical products listed in the Intrinsically Safe 3C Catalog.
Adopt the "Type Test + Factory Audit" approach, where the factory can be its own manufacturer, or an OEM or ODM factory.
This certification is divided into two parts.
Firstly, product testing is conducted in accordance with the GB/T3836 standard for explosion-proof testing. Upon successful testing, a type examination report is issued.
Firstly, conducting factory audits, which we refer to as "factory inspections," involves on-site evaluations of production facilities.
There are numerous 3C factory auditing agencies, but finding one capable of handling explosion-proof 3C audits is key.
For more details, please contact Shenzhen ZhongNuo Testing Technology Co., Ltd.!

What should be noted when applying for a防爆3C certification?
1. 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 sheets, etc.
(2) Product Corporate Standards and Instructions
(3) Product Name, Model, Applicant Company
(4) Samples: Complete unit samples, batteries, uncapped circuit boards, non-metallic material surface blocks, etc.
(5) Additional Materials: Casting 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 PM Shenzhen ZhongNuo Inspection & Technology Co., Ltd. for communication!

What standards are used for explosion-proof certification? What are the technical requirements?
Explosion-proof is a type of explosion prevention for electrical equipment.
Its housing can withstand explosive mixtures entering the housing through the housing joint surfaces or structural gaps, and explode internally without causing damage.
And ignition of an explosive gas atmosphere formed by one, several gases or vapors.
Explosion-proof casings must have both anti-explosion and explosion-proof properties. Generally, the casings for explosion-proof products tend to be rather heavy.
Products and equipment suitable for fixed installation and use.
Combustible gas-tightness face width, gap, and roughness are the three essential elements of explosion-proof shell design.
Design requirements for explosion-proof three elements vary depending on the different explosive gas environments in mining Class I, 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 been dedicated to 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, illustration, modification guidance, certification agency services, and more.
If you have a need in this area as well, feel free to consult Shenzhen Zhongnuo Inspection Technology Co., Ltd. at any time!
Explosion-proof 3C Certification Consulting Services - Shenzhen Zhongnuo Testing Technology Co., Ltd.