Tianjin Telephone Ex-proof Certification

Shenzhen Zhongnuo Inspection & Technology Co., Ltd. is based in South China, specializing in explosion-proof certification and coal mine safety certification application consulting services, offering a one-stop explosion-proof technology consulting service.
What test projects are required to apply for an explosion-proof certificate?
Explosion-proof products must pass relevant testing requirements of the explosion-proof standards to apply for an explosion-proof certification.
Different explosion-proof types, catering to equipment used in various explosive environments, require different explosion-proof testing items.
Many customers also want to know what specific test items are required for explosion-proof products? What are the specific requirements for the explosion-proof design of the products?
Below, we'll provide examples of common explosion-proof testing items.
For instance, with intrinsic safety products, typical test items include appearance and structure inspection, spark ignition tests, dielectric strength, battery and battery pack testing, temperature rise tests, transient energy tests, and more.
Main test items for explosion-proof products include heat and cold resistance tests, internal ignition without propagation of explosion, shell pressure resistance, IP testing, temperature rise tests, etc.
Different testing items, tailored to various modules or components of the product.
Each test item ensures that the product meets explosion-proof standards and achieves the required explosion-proof performance.
If a company is designing explosion-proof products and is unaware of the explosion-proof standards requirements,
ZhongNuo Inspection can provide guidance services for explosion-proof circuit design and explosion-proof structural design.
Including explosion-proof standards, design key points, drawing guidance, and offering consulting services for explosion-proof testing and certification.
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What are the requirements for a company to apply for explosion-proof certification -- Shenzhen ZhongNuo Testing Technology Co., Ltd.
For enterprises, there are no special requirements for applying for domestic explosion-proof certificates (except for the explosion-proof 3C certification).
Primarily, it's to check if the product meets explosion-proof standards and whether you can provide relevant certification documents.
If the product falls under the explosion-proof 3C certification category, the applicant must have a production factory (OEM/ODM is also acceptable).
Because the explosion-proof 3C certification is a certification model that incorporates both type testing and factory inspection.
In addition to product testing, an annual inspection of the manufacturing facility is required.

What should a company pay attention to when applying for a防爆 certification?
Many customers are baffled when inquiring about obtaining the explosion-proof certification, not knowing where to start.
Based on years of industry experience, ZhongNuo Inspection summarizes several key points to note when a company applies for an explosion-proof qualification certificate.
Are you sure of the explosion-proof marking on the product?
Do you provide samples and technical drawings?
Can you accommodate product modifications?
4. 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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List of Domestic Explosion-Proof Certification Institutions:
1. Nanyang CNEX
2. Shanghai Coal Research Institute
3. National Electrical Appliance Quality Supervision and Inspection Center
4. Guangdong CQCEx National Explosion-Proof Equipment Quality Supervision and Inspection Center
5. National Coal Mine Explosion-Proof Safety Product Quality Supervision and Inspection Center
6. Jiamusi Explosion-Proof Institute
7. Tianjin PCEC
8. Shanghai NEPSI
9. Beijing Coal Research Institute CCRI, etc.
For applicants, what type of explosion-proof design to apply for, and which explosion-proof grade to choose, is actually the same across all authorized institutions. They are all institutions that have undergone state authorization and certification, possessing testing conditions that meet standard requirements, adhering to the same standards, and conducting the same testing. Under the same conditions, the trend is to choose institutions offering more affordable services at a lower price, which is also a significant reason for the increasing popularity of emerging explosion-proof enterprises.
Explosion Proof Certification Application Consulting Services - Shenzhen Zhongnuo Testing Technology Co., Ltd.