Paint Spraying Machine Intrinsically Safe Certification Process - Shenzhen ZhongNuo Inspection

Shenzhen ZhongNuo Inspection Technology Co., Ltd. is based in South China and specializes in explosion-proof certification and coal safety certification application consulting services, offering a one-stop explosion-proof technology consulting service.
Is product explosion-proof certification the same as explosion-proof qualification certificate?
Many clients inquire during consultations: What is the difference between applying for a explosion-proof certification and an explosion-proof qualification certificate?
Explosion-proof certification and explosion-proof certificate are two different concepts; upon completing the explosion-proof certification, the final product is issued an explosion-proof certificate.
The explosion-proof certification is a process, while the explosion-proof compliance certificate is the result. So when the customer says the product undergoes explosion-proof certification or has an explosion-proof compliance certificate,
The product must pass the explosion-proof standard tests and meet the standard requirements to obtain an explosion-proof certification.
Explosion-proof certification can be categorized according to different protection types, including intrinsic safety, flameproof, pressurized, and encapsulation types.
ZhongNuo Inspection boasts a team of explosion-proof engineers who can provide initial design services for explosion-proof circuits and structures.
Assist companies in preparing the necessary drawings, specifications, and manuals, including enterprise standards, for explosion-proof certifications, helping them obtain the explosion-proof qualification certificate.
If you require certification in this area, feel free to send us a private message!

The 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 based on the company's product specification, electrical schematic, and component list, determine the appropriate type of explosion-proof certification for the product, and provide an initial quotation.
2. Provide samples for testing in the lab; the quantity of samples required varies depending on the product category.
3. Provide Documentation Checklist Review
Application documents, including applicant information and product information
(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 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 a explosion-proof certification for intrinsically safe electrical equipment, the company shall provide assembly drawings, circuit diagrams, printed circuit board diagrams, silk screen drawings, component material lists, and label drawings, etc. For non-intrinsically safe electrical equipment, the technical documents submitted for testing should include drawings that reflect the explosion-proof performance of the sample (including assembly drawings and component drawings). If the overall drawing clearly indicates the explosion-proof parameters and structure of the product, it may suffice to submit only the overall drawing.
C. Instruction Manual - The instruction manual should include basic parameters, explosion-proof markings, product outline drawings, installation, maintenance, order instructions, and clear warnings to the user regarding the importance of ensuring the product's explosion-proof performance during installation and use.
D. Other Documents: For products with adhesive bonding or casting, provide the型号 and name of the adhesive and casting agents, along with their performance descriptions and relevant process files. For products with plastic casings, supply the material of the plastic and the corresponding performance documents.
4. Certificate Issuance

The Difference Between Applying for an Explosion-Proof Certificate and an Explosion-Proof 3C Certification:
This pertains to products within the Explosion-Proof 3C Catalogue, such as motors, fans, and intercoms, which all fall under the Explosion-Proof 3C Catalogue.
Previous applicants for explosion-proof certification need to convert to the explosion-proof 3C certification.
The application for explosion-proof 3C certification adopts the "Product Testing + Factory Audit" approach.
Applicants must have a production factory or an OEM/ODM factory.
Products outside the explosion-proof 3C certification catalog only require an explosion-proof certificate.

Sample Requirements for Explosion-Proof Certification Application:
The sample machine submitted by the company for testing should match the approved drawings and be fully assembled; the number of units inspected should meet the requirements.
If special disassembly tools are required, they should be sent along as well.
For encapsulated electrical equipment, a set of both encapsulated and non-encapsulated products should be submitted.
The transparent pieces for the observation window should be sent separately with at least 3, but no more than 5.
The transparent parts of the lighting fixtures should be sent separately in an additional 8 pieces, with at least 5 pieces.
Rubber aging tests should provide 3 to 5 pieces of 35156 rubber blocks.
Two plastic sheets with a diameter of 15060 mm are required for the insulation resistance test of the plastic shell. If the dimensions permit, the test can be conducted directly on the plastic shell.
Generally, 1-2 finished products are required.
Explosion-proof Certification Application Consulting Service - Shenzhen Zhongnuo Testing Technology Co., Ltd.