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 are the requirements and documents needed to apply for an explosion-proof certification?
The explosion-proof certificate is a safety certification for equipment and products used in environments with explosive gases or combustible dust.
Certificates are available for Ex equipment and Ex components.
The product must obtain a防爆 certification; a防爆 standard test of the product is required.
Provide drawings and technical documents that meet explosion-proof standards.
The provided technical documentation includes product manuals, corporate standards, electrical schematics, PCB layouts, assembly diagrams, exploded views, battery testing reports, specifications, potting process documents, wireless transmission power reports, and shell material reports.
Of course, not all of this information is required; it needs to be further assessed based on the product structure and explosion-proof type.
ZhongNuo Testing boasts years of experience in explosion-proof product testing and certification services.
We offer consulting services for explosion-proof design, illustration, circuit, and structural modifications. Full-process consulting on obtaining explosion-proof certification is available. Welcome to consult anytime!

The explosion-proof certificate is a certification model for products outside the explosion-proof 3C catalog.
As of October 1, 2009, certain explosion-proof electrical equipment was included in the CCC certification catalog, which is a mandatory product certification. Products listed in the catalog require the explosion-proof 3C certification, following the "product testing + factory audit" model. For the detailed explosion-proof 3C certification catalog, please refer to the relevant content on our website. Explosion-proof products not listed in the catalog can opt for the explosion-proof compliance certificate, which can be obtained upon passing the product testing.
The general procedure for obtaining an explosion-proof certification includes: submitting relevant product documents, conducting product testing, and upon passing the test, issuing an explosion-proof certification. During the application process, ensure that your product complies with the relevant explosion-proof standards and requirements.
If you're unfamiliar with explosion-proof standards and certification requirements, no worries. Shenzhen Zhongnuo Testing Technology Co., Ltd. offers explosion-proof design and modification services, as well as certification agency services for intrinsic safety, flameproof, encapsulation, and positive pressure types, to help businesses conveniently obtain explosion-proof certificates.

What are the requirements for a company to apply for explosion-proof certification -- Shenzhen Zhongnuo Testing Technology Co., Ltd.
For businesses, there are no special requirements for applying for domestic explosion-proof certificates (except for the explosion-proof 3C certification).
Primarily, it's about checking if the product meets the explosion-proof standards and whether the required documentation can be provided.
If the product falls under the explosion-proof 3C certification category, the applicant must have a manufacturing facility (OEM/ODM is also acceptable).
Because the explosion-proof 3C certification is a certification model that involves both type testing and factory audit.
In addition to product testing, an annual audit of the manufacturing facility is required.

Intrinsically Safe Certification and Explosion-Proof Certification are two common types of different explosion protection, which fundamentally differ in their explosion protection principles, mainly reflected in the following aspects:
The explosion-proof certification typically involves the use of explosion-proof enclosures. These enclosures must be sufficiently thick and strong; even if an explosion occurs inside the equipment, the flame will be extinguished due to the width, gap, and roughness of the junction surface of the explosion-proof enclosure, thereby igniting the external hazardous environment. On the other hand, even if an explosion occurs in the external hazardous area, the explosion-proof enclosure exhibits anti-explosion properties. In summary, the explosion-proof enclosure can withstand explosions and also resist them, although the equipment may be relatively heavy.
The intrinsic safety certification, which ensures fundamental safety, is achieved by limiting circuit energy, etc., so that even in the event of anticipated failures, the generated energy is insufficient to ignite surrounding explosive substances. Consequently, intrinsic safety products have higher requirements for equipment circuits and operating power, and are generally suitable for handheld devices, low-power products, and so on.
Additionally, there is a composite explosion-proof certification. This indicates that the product cannot achieve explosion-proof with a single type; it must employ two or more explosion-proof types. For instance, explosion-proof equipment with antennas typically has the antenna section treated as intrinsically safe, making the device both explosion-proof and intrinsically safe. However, it's important to note that composite explosion-proof products do not necessarily mean the product must meet all requirements of different explosion-proof types, nor does their explosion-proof rating necessarily exceed that of a single type. The explosion-proof rating of the product mainly depends on the gas/dust category, temperature group, and equipment protection level.
For more information on explosion-proof certifications for intrinsic safety and flameproofing, please feel free to consult Shenzhen ZhongNuo Testing Technology Co., Ltd. at any time.
explosion-proof certification application consultation service - Shenzhen Zhongnuo Testing Technology Co., Ltd.