Shenzhen Zhongnuo Testing Technology Co., Ltd. is based in South China and specializes in explosion-proof certification and coal mine safety certification application consulting services, offering a one-stop explosion-proof technology consulting service.
Explosion-proof product categories certified:
The new implementation regulations 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 Devices
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

Classification of explosion-proof certification -- Shenzhen ZhongNuo Inspection & Technology Co., Ltd.
Blastproof certification is the process of verifying that equipment meets the requirements of explosion-proof standards, type testing, and applicable routine tests, and issuing the relevant qualification certificates. Certificates can be issued for Ex equipment or Ex components.
Different regions have varying certification standards and systems for explosion-proof electrical products. Currently, explosion-proof certifications internationally can be categorized into domestic explosion-proof certification, ATEX certification, IECEx certification, and North American explosion-proof certification.

What are the markings on explosion-proof electrical equipment?
A complete explosion-proof label includes:
Ex Mark
Explosion-proof type
Gas/Dust Combination
Temperature Category
Equipment protection level
Ex db ib IIc T4 Gb
Ex tb ⅢC T130°C Db
For more information, please contact Shenzhen Zhongnuo Inspection & Technology Co., Ltd.!

Explosion-proof certification is the process of determining if equipment meets the requirements of explosion-proof standards, type testing, and routine tests, and issuing the relevant qualification certificates.
Certificates can be provided for Ex equipment or Ex components. The explosion-proof standard GB/T3836 specifies that:
Electrical equipment trial-produced in compliance with the explosion-proof type standards listed in GB/T3836.
All must be sent to authorized state institutions for防爆Testing in accordance with relevant standards and obtain a防爆qualification certificate.
This means that explosion-proof products must obtain the relevant explosion-proof certification.
Explosion-proof Certification Application Consulting Service - Shenzhen ZhongNuo Testing Technology Co., Ltd.