Shenzhen Zhongnuo Testing Technology Co., Ltd. is based in South China and specializes in explosion-proof certification and coal safety certification application consulting services, offering one-stop explosion-proof technology consulting services.
What is the relationship between the explosion-proof certificate and the explosion-proof CCC certification?
The explosion-proof certificate and the explosion-proof 3C certification are for different types of explosion-proof products.
Explosion-proof 3C Certification is applicable to products listed in the Explosion-proof 3C Catalogue. There is a dedicated product directory for Explosion-proof 3C.
Products within the catalog undergo explosion-proof 3C certification, adopting a "Product Testing + Factory Audit" model.
Both product type tests and factory on-site evaluations must be conducted.
Certificate of Compliance for Explosion-Proof Products outside the Explosion-Proof 3C Catalogue.
Certification mode is product testing; upon passing the testing, a frequent issuance of explosion-proof certification is allowed.
Of course, products outside the explosion-proof 3C catalog can also apply for explosion-proof certifications alone, but there's a risk of being penalized by market supervision.
This is for the customer to consider.
For more details, please feel free to contact Shenzhen ZhongNuo Testing Technology Co., Ltd. for further discussion!

Domestic explosion-proof certification models are divided into three scenarios -- Shenzhen Zhongnuo Testing Technology Co., Ltd.
1. Explosion-proof certification system
Applicable Products: Electrical and non-electrical equipment used in places with explosive gases and dust, excluding those not for mining (except for products listed in the Explosion-Proof 3C Catalog).
Certification Mode: Product Testing
Certification Certificate: Explosion-Proof Compliance Certificate
Certificate Validity: 5 years
Annual Audit Required: No
2. Explosion-proof 3C Certification System
Applicable Products: Electrical Equipment listed in the Explosion-Proof 3C Catalog
Certification Model: Combination of Type Testing and Factory Audit
Certification Certificate: CCC Certificate
Certificate Validity: 5 years
Is Annual Audit Required: Annual Audit Required
3. Coal Safety/Mine Safety Certification System
Applicable Products: Various electrical and non-electrical equipment for use in coal mines and non-coal mines underground
Certification Model: Combination of Type Testing and Factory Audit
Certification Certificate: Mine Product Safety Mark Certificate
Certificate Validity: 5 years
Annual Audit Required: Yes, an annual audit is required

What is the difference between obtaining a product safety certification and a coal mine safety certification?
intrinsic safety certification, also known as intrinsic safety explosion-proof certification.
In the explosion-proof industry, there are various explosion-proof protection types, including separation type, intrinsic safety type, increased safety type, positive pressure type, and encast type, etc.
intrinsic safety is just one type of explosion-proof design; equipment utilizing this type of explosion-proof design is used in explosive areas.
Due to the restrictions on its working voltage, current, capacitance, inductance, etc.
Even if sparks occur within the circuit, they are not sufficient to ignite the surrounding explosive environment, making it inherently safe.
The intrinsic safety certification is widely used in low-power, low-energy instruments, handheld terminal products, and similar devices.
Coal Mine Safety Certification is a mandatory safety certification for equipment used underground in coal mines.
Due to the presence of explosive substances like methane in underground coal mines, electrical equipment used in such mines must be equipped with protective measures to ensure explosion-proof performance.
You can choose appropriate explosion-proof protection types such as intrinsic safety, flameproof, and encapsulation based on product structure, electrical parameters, installation methods, and usage areas.
It's worth noting that electrical equipment applying for the Coal Mine Safety Certification must not only have explosion-proof capabilities but also meet performance tests for the special underground environment of coal mines.
ZhongNuo Inspection has long been focused on explosion-proof certification and coal safety certification.
Familiar with certification standards, as well as the explosion-proof design, modification, testing, certification, and factory audit processes and requirements for products.
Facilitates rapid acquisition of explosion-proof certification and coal mine safety certification for businesses.

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 require different certification directives; the ATEX directive, for example, is specifically for explosive-proof equipment and products.
ATEX certification can be likened to 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 reach out to Shenzhen ZhongNuo Testing Technology Co., Ltd. for further information!
Explosion-proof Certification Application Consulting Service - Shenzhen Zhongnuo Testing Technology Co., Ltd.