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 one-stop explosion-proof technology consulting services.
Certification standards for explosion-proof equipment used in environments with explosive gas:
GB/T 3836.1-2021 Explosive Atmospheres Part 1: Equipment General Requirements
GB/T 3836.2-2021 Explosive Atmospheres, Part 2: Equipment protected by a flameproof "d" enclosure
GB/T 3836.3-2021 Explosive Atmospheres, Part 3: Equipment protected by an increased safety "e" type
GB/T 3836.4-2021 Explosive Atmospheres, Part 4: Equipment protected by intrinsic safety "i"
GB/T 3836.5-2021 Explosion-Proof Environment, Part 5: Equipment Protected by a Positive Pressure Enclosure "p"
GB/T 3836.6-2017 Part 6: Equipment protected by liquid immersion "o" for explosive environments
GB/T 3836.7-2017 Explosive Atmospheres, Part 7: Equipment protected by filling with sand type “q”
GB/T 3836.8-2021 Explosive Atmospheres, Part 8: Equipment protected by "n" type protection
GB/T 3836.9-2021 Explosive Atmospheres Part 9: Equipment protected by "m" type encapsulation

What is an ATEX certification of conformity? What are the requirements for applying for an ATEX certification of conformity?
Intrinsically safe equipment primarily ensures safety by controlling the electrical parameters of the device circuit and limiting the energy of the entire circuit, thereby meeting the requirements for intrinsic safety explosion-proofing.
Key measures include reducing voltage and current, and controlling parameters of energy storage components such as inductors and capacitors.
The product design references the standards GB/T3836.1 and GB/T3836.4.
Customers applying for the explosion-proof certificate for safety equipment need to provide electrical schematics, block diagrams, PCB layouts, and tag number diagrams.
Product assembly diagram, manual, corporate standards, and other materials.
Recently, CN Testing has obtained temperature vibration sensors, remote transmitters, monitoring devices, and Bluetooth beacons for our clients.
The explosion-proof certificates for walkie-talkies and other products are of intrinsic safety explosion-proof type.
If you have products that need to undergo explosion-proof certification as well, feel free to DM us!

Explosion-proof Certification Categories -- Shenzhen ZhongNuo Testing 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 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, international explosion-proof certifications include domestic explosion-proof certification, ATEX certification, IECEx certification, and North American explosion-proof certification.

What is the relationship between the explosion-proof certificate and the explosion-proof CCC certification?
The explosion-proof certificate and the explosion-proof 3C certification are for different types of explosion-proof products.
Explosion-proof 3C Certification is applicable to products listed in the Explosion-proof 3C Catalog. There is a dedicated product catalog for explosion-proof 3C. Products within the catalog require explosion-proof 3C certification, which involves a "Product Testing + Factory Audit" approach, encompassing both type testing of the product and an on-site factory audit.
Ex-proof certificate for products not listed in the Ex-proof 3C Catalogue. The certification model involves product testing; once the product passes testing, an Ex-proof certificate can be issued frequently.
Of course, products outside the explosion-proof 3C catalog can also apply for explosion-proof certifications alone, but there's a risk of being penalized by market supervision. This is something for the client to consider on their own.
Explosion-proof Certification Application Consultancy Services - Shenzhen Zhongnuo Testing Technology Co., Ltd.