Shenzhen ZhongNuo Inspection & Testing 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 applying for an explosion-proof certification the same as obtaining an explosion-proof qualification certificate?
Many clients inquire during consultations: What's the difference between applying for an explosion-proof certification and an explosion-proof compliance certificate?
Explosion-proof certification and explosion-proof compliance certificates are two distinct 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, and the explosion-proof certificate is the outcome.
So the customer mentioned 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 an explosion-proof certification.
Explosion-proof certifications can be categorized into different types of protection, such as intrinsic safety, flameproof, pressurized, and encased.
Shenzhen ZhongNuo Inspection boasts a dedicated team of explosion-proof engineers who can provide preliminary design services for explosion-proof circuits and structures.
Assist companies in preparing the drawings, technical specifications, and documentation, including corporate standards, required for explosion-proof certification, helping them obtain the explosion-proof qualification certificate.
If you need certification in this area, feel free to DM us!

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

List of Domestic Explosion-Proof Certification Institutions:
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, the type of explosion-proof and the level of explosion-proof required are essentially the same across all authorized institutions. They are all institutions that have received national authorization after certification, equipped with testing conditions that meet standard requirements, adhering to the same standards, and conducting the same testing. It is an inevitable trend to choose institutions offering more affordable services under the same conditions, which is also a significant reason for the growing popularity of emerging explosion-proof enterprises.

Domestic explosion-proof certification models are divided into three cases -- Shenzhen Zhongnuo Testing Technology Co., Ltd.
1. Explosion-proof certification system
Applicable Products: Electrical and non-electrical equipment used in areas with explosive gases and dust, excluding those for mining (products not listed in the Explosion-Proof 3C Catalogue)
Certification Mode: Product Testing
Certification Certificate: Explosion-Proof Compliance Certificate
Certificate Validity: 5 years
Annual Audit Required: No
2. Explosion-proof 3C Certification System
Applicable Products: Electrical Equipment Listed in the Explosion-Proof 3C Catalog
Certification Model: Combination of Type Testing and Factory Audit
Certification Certificate: CCC Certificate
Certificate Validity: 5 years
Annual Audit Required: Yes, an annual audit is required
3. Coal Mine Safety Certification System
Applicable Products: Various electrical and non-electrical equipment for use in coal mines and non-coal mines underground
Certification Model: Combination of Type Testing and Factory Audit
Certification Certificate: Mining Product Safety Mark Certificate
Certificate Validity: 5 years
Annual Audit Required: Yes, an annual audit is required.
explosion-proof certification application consulting service - Shenzhen Zhongnuo Testing Technology Co., Ltd.