Shenzhen Zhongnuo Inspection & Technology Co., Ltd. is headquartered in South China, specializing in explosion-proof certification and coal safety certification application consulting services, offering a one-stop explosion-proof technology consulting service.
What should a company pay attention to when applying for an explosion-proof certification?
Many clients are confused when inquiring about obtaining explosion-proof certification, not knowing where to start.
Based on years of industry experience, ZhongNuo Inspection summarizes several points to note when a company applies for an explosion-proof certification.
Is the explosion-proof marking of the product confirmed?
Do you offer samples and technical drawings?
Can you accommodate product modifications?
Are there frequent institutions?
These 4 points are注意事项for applying for an explosion-proof certification; specifically, how to apply,
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What explosion-proof certificates are required for explosion-proof electrical equipment?
In China, the explosion-proof equipment requires mainly the explosion-proof certificate, explosion-proof 3C certificate, and coal safety certification.
(1) For products listed in the Explosion-Proof 3C Catalog, such as motors, fans, intercoms, etc., an Explosion-Proof 3C certification is required. This certification process involves "product testing + factory audit," and the applicant must have a production facility or an OEM/ODM factory.
(2) For explosion-proof products not listed in the explosion-proof 3C certification catalog, and those used in non-mining flammable and explosive places, only an explosion-proof qualification certificate is required.
(3) For use in coal mines with environments containing flammable and explosive mixtures such as gas, a Coal Safety Certification must be obtained.
Whole machine explosion-proof certification comes in various categories and applicable environments, such as intrinsic safety, flameproof, and encapsulation types; applicable environments include gas explosion-proof, dust explosion-proof, and mine explosion-proof certifications; and in terms of regions, there are domestic explosion-proof certifications, ATEX certifications, IECEx certifications, and more.
For more information on explosion-proof equipment qualifications, please feel free to contact Shenzhen ZhongNuo Inspection & Technology Co., Ltd.

How to apply for explosion-proof certification?
The explosion-proof marking indicates the type of explosion-proof equipment, enabling users and installers to quickly understand the explosion-proof type, corresponding gases/dusts, and temperature classes of the product. This helps to prevent situations like installing gas explosion-proof products in dust-prone areas or "N" type products in explosion-proof zones of category 1, ensuring that explosion-proof products are properly matched with hazardous locations during selection.

Difference Between Explosion-Proof 3C Certification and Explosion-Proof Certificate of Conformity
As of October 1, 2009, a portion of explosion-proof electrical equipment was included in the CCC certification catalog. Products listed in the catalog must undergo explosion-proof 3C certification, which involves both "product testing + factory audit" models, including both type tests for the products and on-site factory audits. The explosion-proof certificate, however, is for products not included in the explosion-proof 3C catalog, and the certification process is based on technical image evaluation and product testing; upon passing the product testing, the explosion-proof certificate can be issued. Please note that while products within the explosion-proof 3C catalog can only obtain the explosion-proof certificate, there is a risk of being penalized by market regulation authorities.
Requirements for obtaining the explosion-proof 3C certification
To obtain the explosion-proof 3C certification, it is necessary to target products listed in the explosion-proof 3C directory, such as motors, fans, two-way radios, etc. Additionally, applicants must have a production facility or an OEM/ODM factory, as the explosion-proof 3C certification requires a "product testing + factory audit" approach.
If your product falls under the explosion-proof 3C certification list and you wish to learn more about the details or application process of the explosion-proof 3C certification, please feel free to consult Shenzhen ZhongNuo Testing Technology Co., Ltd. for more detailed guidance and assistance.
Explosion-proof Certification Application Consulting Service - Shenzhen Zhongnuo Testing Technology Co., Ltd.