Electronic Lock Explosion-Proof Certification Certificate Standard, Shenzhen Zhongnu Inspection, Application Cycle

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.
The process for applying for an explosion-proof certification at Shenzhen Zhongnuo Testing Technology Co., Ltd.
1. Conduct product assessment and provide initial quotation for the requested product. Evaluate the product using the company's product specification, electrical schematics, and bill of materials, determine the suitable type of explosion-proof certification, and offer an initial quotation.
2. Provide samples for laboratory testing; the quantity of samples required varies depending on the product category.
3. Provide documentation list review
(1) Application Documents, including applicant's information and product details
(2) Technical Documents - The submitted technical documents by the company include corporate standards or technical requirements, product drawings, user manuals, etc.
A. Corporate Standards/Technical Requirements: The corporate standards/technical requirements for products should be written in accordance with the specified format. The content should include not only the performance requirements of the product but also relevant aspects of explosion-proof: such as basic parameters, explosion-proof markings, environmental conditions of use, explosion-proof performance requirements, relevant tests for explosion-proof performance, and markings related to explosion-proof.
B. Product Drawings: When applying for a防爆 certification for intrinsically safe electrical equipment, the applicant should provide assembly drawings, circuit diagrams, printed circuit board drawings, silk screen drawings, material lists for components, and label drawings, etc. For non-intrinsically safe electrical equipment, the technical documents submitted for inspection should include drawings that reflect the sample's explosion-proof performance (including assembly drawings and component drawings). If the assembly drawing clearly indicates the product's explosion-proof parameters and structure, only the assembly drawing needs to be submitted for inspection.
C. Instruction Manual - The instruction manual should include basic parameters, explosion-proof markings, product外形 diagram, installation, maintenance, order requirements, and clear instructions to the user regarding the precautions to ensure the product's explosion-proof performance during installation and use.
D. Other Information: For products with adhesive bonding or casting, provide the model names, performance descriptions, and relevant process documents for the adhesives and casting agents. For plastic shell products, provide the material of the plastic and corresponding performance documents.
4. Issuance of Documents

Why Should a Company Obtain Explosion-Proof Certification?
Blast-proof certification refers to the process of determining whether equipment meets blast-proof standards, requiring the issuance of relevant certificates after type testing, primarily targeting Ex equipment or Ex components.
Explosion-proof products mainly refer to explosion-proof electrical products: used in environments where explosions of gases or dust may occur.
Electrical products or components with explosion-proof function, capable of igniting surrounding explosive environments under specified conditions.
Safety of explosion-proof equipment is closely related to safe production, hence many countries implement explosion-proof certification systems for explosion-proof electrical products.
Explosion-proof products must obtain explosion-proof certification before they can be used in flammable and explosive hazardous areas.
The # explosion-proof certification # is essential for ensuring the safety of explosion-proof electrical products.
Blast-proof certification can boost product exports and further enhance the credibility and reputation of the company and its products.
Enhance market competitiveness; certified companies in China can obtain explosion-proof certification.

Market Access System for Explosion-Proof Products
1. Explosion-proof Certificate System: Applies to all explosion-proof products, adopting the "type testing" method.
2. CCC Certification: Applicable only to certain explosion-proof products (excluding measuring instruments and explosion-proof lighting), utilizing the "Type Testing + Factory Inspection" approach
3. Coal Safety Mark (MA): Suitable for mining products, adopts the "type testing + factory inspection" approach

Can ODM/OEM companies apply for explosion-proof certificates and explosion-proof 3C certifications? What are the requirements?
Many customers are asking whether their products are OEM manufactured, ODM branded, or purchased.
Can you handle explosion-proof certification or explosion-proof 3C certification?
Here, China Nuojie Testing introduces the requirements and conditions for obtaining the explosion-proof certificate and the explosion-proof 3C certification.
If applying for an explosion-proof certification, the company only needs to provide the product's design drawings and samples.
No requirement for a production factory. Therefore, whether it's OEM, ODM, or products purchased directly,
As long as the required drawings and samples for certification are provided, a防爆 certification can be processed.
Of course, the provided drawings and samples must comply with the requirements of the explosion-proof certification standards.
To obtain the Explosion-proof 3C certification compared to the Explosion-proof Certificate, it requires an additional factory audit and an annual supervisory review.
Therefore, the applicant must have their own manufacturing factory/OEM/ODM factory.
The application process is also more complex and costly, with a longer timeline, compared to obtaining the explosion-proof qualification certificate.
ZheNuo Testing has been deeply involved in the explosion-proof field for many years, well-versed in the requirements of the GB/T 3836 series standards.
We have extensive experience in the design and modification guidance for explosion-proof products.
We offer a one-stop service for explosion-proof certification, including design modification, drawing evaluation, certification acquisition, factory audit, and explosion-proof 3C certification.
We have a wealth of evidence collection cases and experience. Feel free to message us!
Explosion-proof Certification Application Consulting Service - Shenzhen Zhongnuo Testing Technology Co., Ltd.