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 a one-stop explosion-proof technology consulting service.
Does the explosion-proof certification include the explosion-proof 3C certification?
In this regard, in China, explosion-proof certifications are divided into Explosion-Proof 3C Certification and Explosion-Proof Certificate of Conformity.
As of October 1, 2009, certain explosion-proof electrical equipment was included in the CCC certification catalog, which is a mandatory product certification. Products within the catalog must apply for the explosion-proof 3C certification, while explosion-proof products outside the catalog require an explosion-proof compliance certificate.
This falls under different certification models. The explosion-proof 3C certification requires both "product testing and factory audit." It's not just about product testing; an on-site review of the production factory is also necessary. Only after the product testing and factory audit are both passed can the CCC certificate be issued.
The explosion-proof certification requires product testing; upon successful testing, the explosion-proof certificate can be issued repeatedly.
Customers should first confirm the product when inquiring and then decide on the certification model.
For more details, please contact Shenzhen ZhongNuo Testing Technology Co., Ltd. directly!

Does a product with an explosion-proof certificate still need a coal safety certificate?
The explosion-proof certificate and coal safety certificate are applicable to different locations.
Intrinsically Safe Certificate typically refers to facilities where explosive gases and dust are present, excluding coal mine shafts.
Coal Safety Certificate refers to the safety certification mark for equipment and products used in underground coal mines.
So, whether to apply for an explosion-proof certificate or a coal safety certificate depends on where the product is used. If it's only used in non-coal mine explosive gas and dust environments, an explosion-proof certificate is sufficient. If it's also used underground in coal mines, a coal safety certificate is mandatory, and they are mutually non-transferable.
Learn more details by sending a direct message to Shenzhen Zhongnuo Inspection Technology Co., Ltd.!

What test items are included in the explosion-proof certificate, and what are the requirements?
Explosion-proof is one of the most commonly used explosion-proof types for explosion-proof products on the market, adhering to the standards GB/T 3836.1 and GB/T 3836.2.
Primarily, explosion-proofing is achieved through the protection of a隔爆外壳.
The explosion-proof housing must have adequate thickness and strength; even in the event of an explosion inside the equipment, the flame will be extinguished due to the width, gap, and roughness of the housing's mating surfaces, preventing ignition of the external hazardous environment.
On the other hand, even if an explosion occurs in a hazardous area outside, the explosion-proof housing still maintains its explosion-proof capabilities.
Overall, the housing is both explosion-proof and shockproof. Consequently, the equipment is quite bulky.
ZhongNuo Inspection has been specializing in the explosion-proof field for many years, well-versed in the requirements of the GB/T 3836 series standards.
Extensive experience in the design and modification guidance for explosion-proof products, offering services including explosion-proof casing design, drafting, certification, and drawing preparation.
If you have a certification need for this, don't forget to DM us!

Explosion-proof product categories certified:
The new implementation measures are divided into 17 product units:
Explosion-proof motors: Center height ≤ 160mm or rated power ≤ 15kW, Explosion-proof motors: 160mm < center height ≤ 280mm or 15kW < rated power ≤ 100kW, Explosion-proof motors: 280mm < center height ≤ 500mm or 100kW < rated power ≤ 500kW, Explosion-proof motors: Center height > 500mm or rated power > 500kW.
2. Explosion-proof electric pumps
3. Explosion-proof distribution equipment
4. Explosion-proof switches, control, and protection products
5. Explosion-proof starters
6. Explosion-proof transformers
7. Explosion-proof electric actuators, solenoid valves
8. Explosion-proof connector assembly
9. Explosion-proof surveillance products
10. Explosion-proof Communication and Signal Equipment
11. Explosion-proof Air Conditioners, Ventilation Equipment
12. Explosion-proof electric heating products
13. Explosion-proof accessories, Ex components
14. Explosion-proof instruments and meters
15. Explosion-proof sensor
16. Safety Fencing
17. Explosion-proof instrument boxes
Explosion Proof Certification Application Consultation Service - Shenzhen ZhongNuo Testing Technology Co., Ltd.