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 can provide clients with services such as application assistance and factory audit guidance.
What products can apply for the intrinsically safe explosion-proof certification? What are the requirements?
"An intrinsically safe design is one of the many explosion-proof protection types, which limits electrical energy so that the equipment remains safe even in the event of a fault."
A type of explosion-proof protection where the energy produced is not sufficient to ignite the surrounding explosive environment.
Therefore, intrinsic safety imposes restrictions on electrical equipment, including current, voltage, capacitance, and inductance.
Suited for low-power equipment.
Additionally, there are specific requirements for the power supply method of intrinsically safe equipment, plastic casings, and wireless transmission.
The product application for intrinsic safety certification requires submission of the product's schematic diagram, PCB layout, and other relevant documents.
Zhenuo Inspection has dedicated engineers specializing in intrinsic circuit and structural design.
We offer technical consultation on explosion-proof circuit design, illustration, and modification.
We have extensive design and certification experience for explosion-proof ratings A, B, and C.
If you require certification in this area, welcome to DM Shenzhen Zhongnu Inspection & Technology Co., Ltd.!

Does the explosion-proof certification include the explosion-proof 3C certification?
Currently, in China, explosion-proof certifications are categorized into Explosion-proof 3C Certification and Explosion-proof Certificate Certification.
The explosion-proof certificate and the explosion-proof 3C certification are for different types of explosion-proof products, and they belong to different certification models.
As of October 1, 2009, a portion of explosion-proof electrical equipment was included in the CCC certification catalog, which is a mandatory product certification.
Products listed in the catalog undergo explosion-proof 3C certification, adopting the "Product Testing + Factory Audit" model.
Both type tests of the products and on-site factory audits are required.
Ex-proof certificate is applicable to products outside the Ex-proof 3C Catalogue. The certification model is Product Testing; upon successful Product Testing, an Ex-proof certificate can be issued.
Of course, products outside the explosion-proof 3C catalog can also apply for just the explosion-proof certification, but there's a risk of being penalized by market supervision. This is something for the customer to consider on their own. When consulting, the customer should first confirm the type of product and then decide on the certification model.
If you're unsure whether the product is listed in the explosion-proof 3C catalog.
Contact Shenzhen Zhongnuo Testing Technology Co., Ltd. for a private evaluation and confirmation!

Can coal safety certification be converted to explosion-proof 3C certification? - Answer from Shenzhen ZhongNuo Testing Technology Co., Ltd.
Based on the announcement, as of October 1, 2020, certain explosion-proof electrical equipment has been transferred to the mandatory product certification catalog.
That is the CCC certification. Products under the explosion-proof 3C certification catalog are certified with the防爆CCC certification certificate through a "type testing + factory audit" approach.
Coal Safety Certification is a shorthand for Coal Mine Safety Certification, which is a mandatory certification implemented by the Safety Standardization Center for all types of products and equipment used underground in coal mines.
The certification method combines "type testing" with "factory audit."
Currently, mandatory product certification bodies and coal safety certification bodies are under different departments.
There is no mutual recognition between them. Coal safety certification and explosion-proof 3C certification are independent of each other.
The coal safety certification or the explosion-proof 3C certification cannot be substituted or converted for each other; they must be applied for separately.

What are the standards for explosion-proof certification? What are the technical requirements?
An explosion-proof type is a type of explosion-proof design for electrical equipment.
The outer shell can withstand the explosion of explosive mixtures that enter the interior through the shell joints or structural gaps, without being damaged.
And cause ignition of an explosive gas atmosphere formed by one or more gases or vapors.
The explosion-proof housing must possess both explosion-proof and anti-explosion properties. Generally, the outer casings for explosion-proof products tend to be rather heavy.
Products and equipment suitable for fixed installation and use.
Explosion-proof face width, gap, and roughness are the three key elements of explosion-proof housing design.
Design requirements for explosion-proof elements vary depending on the different explosive gas environments of Class I mining, non-mining Class IIA, IIB, and IIC.
Please refer to the design standards of GB/T3836.1 and GB/T3836.2.
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, drafting, modification guidance, certification agency services.
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 Business Consultation Services - Shenzhen Zhongnuo Testing Technology Co., Ltd.