1、 Introduction to Explosion proof Certificate

The document used to determine whether the equipment meets the requirements of standards, type tests, and routine tests for adaptation. The certificate can be for Ex devices or Ex components. All products within the scope of the explosion-proof certificate must obtain an explosion-proof certificate.

2、 Types of explosion-proof certificates

Explosion proof certificates include explosion-proof type (d), increased safety type (e), intrinsic safety type (i), positive pressure type (p), n-type (n), oil filled type (o), sand filled type (q), and sealing type (m).

3、 The process of applying for an explosion-proof certificate

1. Provide product and preliminary quotation for the applied product. The enterprise provides product manuals, electrical schematics, and component lists for the product, and provides a preliminary quotation on which type of explosion-proof certificate is suitable for the product.

2. Provide samples to the laboratory for testing, and the required quantity of samples varies for different product categories.

3. Provide a list of materials for review

(1) Enterprise Qualification Certificate

A copy of the business license (at the time of initial inspection), a letter of authorization from the unit, or an application letter.

(2) Enterprise Quality Assurance Certificate (if any)

According to GB3836.1-2000, enterprises should provide corresponding quality assurance certificates when submitting for review. When a company passes the ISO9000 series certification, providing a copy of the ISO9000 series certification is sufficient.

(3) Technical data

The technical materials submitted by enterprises for review include enterprise standards or technical requirements, product drawings, user manuals, etc.

A、 Enterprise standards/technical requirements

The enterprise standards/technical requirements of the product should be written in the prescribed format, which should include not only the performance requirements of the product, but also relevant content related to explosion protection, such as basic parameters, explosion protection signs, environmental conditions for use, explosion protection performance requirements, relevant tests of explosion protection performance, and signs related to explosion protection.

B、 Product drawings

When applying for an explosion-proof certificate for intrinsically safe electrical equipment, enterprises should provide assembly drawings, circuit schematics, printed circuit board diagrams, screen printing diagrams, component material lists, and nameplate diagrams. When a company applies for an explosion-proof certificate for non intrinsic safety electrical equipment, the technical data submitted for inspection should include drawings that can reflect the explosion-proof performance of the sample (including assembly drawings and part drawings). When the overall drawing can clearly indicate the explosion-proof parameters and structure of the product, only the overall drawing can be submitted for inspection.

C、 an instruction manual

The user manual should include basic parameters, explosion-proof markings, product outline drawings, installation, maintenance, ordering instructions, and clearly indicate to the user the precautions to ensure the explosion-proof performance of the product during installation and use.

D、 Other information

For products with adhesives and sealants, the corresponding adhesive and sealant model names, performance specifications, and relevant process documents should be provided. For products with plastic shells, the material and corresponding performance documents of the plastic should be provided.

4. Certificate issuance

4、 Cycle for applying for explosion-proof certificate

The application period for explosion-proof certification depends on the specific product. With complete information provided by the enterprise, the testing period for applying for intrinsic safety explosion-proof certification is 2-3 weeks, and the testing period for explosion-proof certification such as explosion-proof, increased safety, and sealing is 4-6 weeks.

5、 The cost of applying for an explosion-proof certificate

The cost includes testing fees, certificate fees, etc. Those applying for an international explosion-proof certificate also need to include factory inspection fees and travel expenses. The specific cost details should be based on the product and the type of explosion-proof certificate.

6、 Where can I apply for an explosion-proof certificate?

Shenzhen Zhongnuo Testing Technology Co., Ltd. is based in southern China and is a third-party testing organization specializing in explosion-proof certification and coal safety certification. Its business covers explosion-proof 3C certification, explosion-proof qualification certificate, explosion-proof testing, ATEX certification, IECEx certification, explosion-proof design, on-site explosion-proof inspection, explosion-proof engineering, anti-corrosion level testing, coal safety&mine safety certification, explosion-proof training, SIL certification, etc. Provide customers with one-stop explosion-proof technology consulting and services, including explosion-proof design, testing, certification, installation, maintenance, on-site inspection, explosion-proof construction, and explosion-proof renovation.