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.
Is applying for an explosion-proof certification the same as obtaining an explosion-proof qualification certificate?
Many customers ask when inquiring, "What's the difference between applying for an explosion-proof certification and an explosion-proof qualification certificate for the product?"
explosion-proof certification and explosion-proof approval certificate are two different concepts.
The product has passed the explosion-proof certification, resulting in the issuance of the explosion-proof certificate. The explosion-proof certification is the process, while the explosion-proof certificate is the outcome.
So the customer said the product needs to have a explosion-proof certification or explosion-proof compliance certificate.
The product must pass the explosion-proof standard tests and meet the standard requirements to obtain the explosion-proof certification.
Explosion-proof certifications can be categorized into different types of protection, such as intrinsic safety, flameproof, positive pressure, and sealing types.
ZhongNuo Inspection boasts a dedicated team of explosion-proof engineers who can provide early-stage design services for explosion-proof circuits and structures.
Assist companies in compiling the necessary drawings, technical specifications, and documentation, such as enterprise standards, for explosion-proof certification, helping them obtain the explosion-proof qualification certificate.
If you require certification in this area, feel free to message us!

What are the requirements and documents needed to apply for an explosion-proof certificate?
The explosion-proof certification 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.
Products require a防爆 certification, and a防爆 standard test of the product must be provided.
Provide drawings and technical documents that meet explosion-proof standards.
The technical documentation here includes product manuals, corporate standards, electrical schematics, PCB layouts, assembly diagrams, exploded views, battery testing reports, specifications, potting process files, wireless transmission power reports, and shell material reports, among others.
Of course, not all of this information is required; it depends on the product structure and explosion-proof type for further assessment.
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. We provide full-process consultation for obtaining explosion-proof certification. Feel free to inquire at any time!

Why do I need an agency to apply for an explosion-proof certificate?
Compared to directly seeking certification from the issuing authority, consulting firms can offer early-stage explosion-proof product design and modification guidance.
Ensure that the samples and technical drawings meet the explosion-proof standards prior to inspection.
Avoided the hassle and additional costs of repeated modifications and testing.
Although the company may incur higher consulting fees, the entire explosion-proof certification process is manageable in terms of both certification costs and time costs.
The entire certification process for the company is quite time and labor-saving.
For more details, please contact Shenzhen ZhongNuo Testing Technology Co., Ltd. directly!

Process for applying for an explosion-proof certification at Shenzhen Zhongnuo Testing Technology Co., Ltd.
1. Conduct product evaluation and initial quotation for the applied products. Evaluate the product using the company's product specification, electrical schematics, and component list, determine the suitable type of explosion-proof certification for the product, and provide an initial quotation.
2. Offer samples for testing at the lab; the quantity of samples required varies by product category.
3. Provide Documentation Checklist Review
Application documents, including applicant information and product details
(2) Technical documents, including the submitted technical materials by the company, such as corporate standards or technical requirements, product drawings, and user manuals.
A. Corporate Standards/Technical Requirements: The corporate standards/technical requirements for the product should be written in accordance with the prescribed format. In addition to including performance requirements, the content should also cover aspects related to explosion-proof: such as basic parameters, explosion-proof markings, operating environmental conditions, explosion-proof performance requirements, relevant tests for explosion-proof performance, and markings related to explosion-proof.
B. Product Drawings: When applying for an explosion-proof certification for intrinsically safe electrical equipment, the applicant should provide assembly drawings, circuit diagrams, printed circuit board drawings, silk-screened drawings, component material lists, and label drawings, among others. 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 overall drawing clearly indicates the product's explosion-proof parameters and structure, only the overall drawing needs to be submitted for inspection.
C. Instruction Manual - The instruction manual should include basic parameters, explosion-proof markings, product exterior diagrams, installation, maintenance instructions, order requirements, and clear warnings to the user regarding the importance of ensuring 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
Explosion-proof Certification Application Consulting Services - Shenzhen Zhongnuo Testing Technology Co., Ltd.