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.
What are common misconceptions about applying for explosion-proof certification for products?
Explosion-proof ratings are not the higher, the better.
The explosion-proof rating is related to product structure, installation method, and usage location; choosing the appropriate one is sufficient. Of course, as long as the product structure meets the requirements, the higher the explosion-proof rating, the wider the range of applications it can cover.
2. Explosion-proof rating is not the same as protection rating.
The protection grade, commonly referred to as the IP rating, is different from the explosion-proof grade.
3. Higher temperature ranges aren't always better; in fact, lower temperatures are safer.
The temperature group indicates the high surface temperature the equipment reaches under adverse conditions. In explosive hazardous areas, of course, the lower the high surface temperature of the equipment, the safer it is.
4. Gas explosion-proof certificates cannot be used in dust areas, and conversely, dust explosion-proof certificates cannot be used in gas areas.
5. The flameproof type is safer than intrinsic safety. Many customers believe that a flameproof device, being enclosed in a housing, is safer than intrinsic safety, but this is incorrect. These are different types of explosion-proofing, all of which can achieve explosion-proofing. If a product is designed for and suitable to its structure and environment, it is considered safe.
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How to Apply for Explosion-Proof Certification for a Company:
1. Self-Application: The company applies to the certification body independently, prepares relevant documents on its own, assists in debugging the sample machine independently, and modifies the parts that are not in compliance with the documents. The process is relatively longer, with higher overall costs, and requires more time and effort.
2. Agent Application: It refers to the entire process of consultation and application to Shenzhen ZhongNuo Testing Technology Co., Ltd., including material revisions, prototype debugging, and progress coordination, which are handled by the consulting agency. This ensures a smooth progress with good guarantees. Quick certificate acquisition, controllable comprehensive costs, and time-saving with reduced effort.

What is an ATEX certification of conformity? What are the requirements for applying for an ATEX certification of conformity?
The explosion-proof equipment primarily ensures safety by controlling the electrical parameters of the device circuit and limiting the entire circuit's energy to meet the explosion-proof requirements.
The main measures include reducing voltage and current, and controlling the parameters of energy storage components such as inductors and capacitors.
The product design reference standards are GB/T3836.1 and GB/T3836.4.
Customers applying for the explosion-proof safety certificate for anti-theft systems must provide electrical schematics, block diagrams, PCB layouts, and position numbering diagrams.
Product assembly drawings, manuals, corporate standards, and other documentation.
Recently obtained for our clients by CNOR Testing: temperature vibration sensors, remote transmitters, monitoring devices, Bluetooth beacons.
Intercoms and other products' explosion-proof certifications are of intrinsic safety type explosion-proof configurations.
If you also have products that require ATEX certification, feel free to send us a private message!

What are the requirements for a company to apply for explosion-proof certification -- Shenzhen Zhongnuo Testing Technology Co., Ltd.
For businesses, applying for a domestic explosion-proof certificate does not impose any special requirements on the company (except for the explosion-proof 3C certification).
Primarily, to check if the products meet the explosion-proof standards and if certification documents can be provided.
If the product falls under the explosion-proof 3C certification category, the applicant company is required to have a manufacturing facility (OEM/ODM is also acceptable).
Because the explosion-proof 3C certification adopts a certification model that includes type testing and factory inspection.
In addition to product testing, an annual inspection of the manufacturing facility is required.
Explosion Proof Certification Application Consulting Services - Shenzhen ZhongNuo Testing Technology Co., Ltd.