Shenzhen ZhongNuo Testing Technology Co., Ltd. is based in South China, specializing in explosion-proof certification and coal mine safety certification application consulting services, offering a one-stop explosion-proof technology consulting service.
The cost of obtaining explosion-proof certification through Shenzhen Zhongnuo Testing Technology Co., Ltd. is related to the following aspects:
1. Should we obtain the explosion-proof certificate or the explosion-proof 3C certification? For the 3C certification, a factory audit is required, which involves additional costs for the audit fee, travel expenses for the auditor, and the application and Certificate fees for the 3C certificate.
2. Related to explosion-proof markings. Different explosion-proof markings have different explosion-proof items, and the cost naturally varies.
3. Domestic explosion-proof certification or international explosion-proof certification? The same explosion-proof mark, ATEX/IECEx certification is much more expensive than the domestic explosion-proof certificate, and it also requires a factory audit. North American explosion-proof certification is even more costly, over $100,000+
4. Do you need a retest? Some customers' products haven't even been designed for explosion-proof, and they still need to be modified, which adds to the cost. If the product includes a battery, battery testing is also an additional expense, especially for those batteries that keep failing the tests.
5. Is it required? Labs often have high demand, and there's usually a waiting list. If so, there will be a cost involved.

What should a company pay attention to when applying for an explosion-proof certification?
Many clients are baffled when inquiring about the application for explosion-proof certification, not knowing where to start.
Based on years of industry experience, Zhongnuo Testing summarizes several key points to note when a company applies for an explosion-proof qualification certificate.
Are you sure of the product's explosion-proof marking?
Do you offer samples and technical drawings?
3. Can we accommodate product modifications?
4. Have you identified a specific certificate-issuing authority?
These 4 points are注意事项for applying for explosion-proof certification. For the specific application process, feel free to message or leave a comment, and Shenzhen ZhongNuo Testing Technology Co., Ltd. will provide one-on-one services to answer your questions.

What products can apply for the intrinsically safe explosion-proof certification? What are the requirements?
"BA ( intrinsic safety ) is one type of explosion-proof protection, which limits electrical energy so that the equipment can still function in the event of a fault."
A type of explosion-proof protection that the energy produced is not sufficient to ignite the surrounding explosive environment.
Therefore, intrinsic safety requirements impose limitations on the current, voltage, capacitance, inductance, etc., of electrical equipment, making them suitable only for low-power devices.
Additionally, there are specific requirements for the power supply method of intrinsically safe equipment, plastic enclosures, and wireless transmitters.
The product application for intrinsic safety certification requires the provision of the product's schematic diagram, PCB layout, and so on.
ZheNuo Testing has dedicated engineers specializing in intrinsically safe circuit and structural design.
We offer technical consulting services for explosion-proof circuit design, drafting, and modifications. We have extensive experience in designing and obtaining certifications for intrinsic safety ia, ib, and ic categories.
If you need certification in this area, feel free to message us!

What standards are used for explosion-proof certifications? What are the technical requirements?
An explosion-proof type is a type of explosion-proofing for electrical equipment.
The shell is capable of withstanding explosive mixtures entering the interior through the shell joint surfaces or structural gaps, and exploding internally without being damaged.
And causes ignition of an explosive gas atmosphere formed by one or more gases or vapors.
The explosion-proof housing must have both explosion-proof and anti-explosion properties. Generally, the outer casings of products designed for explosion-proof purposes tend to be rather heavy.
Products and equipment suitable for fixed installation and use.
Combustible gas-tight joint width, gap, and roughness are the three key elements of explosion-proof housing design.
Design requirements for explosion-proof elements vary depending on the different explosive gas environments in mining Class I, non-mining Class IIA, IIB, and IIC.
Refer to the design standards of GB/T3836.1 and GB/T3836.2 for specifics.
ZhongNuo Inspection has long focused on explosion-proof product design, testing, and certification services.
A specialized explosion-proof technology team is in place in the explosion-proof field, well-versed in the requirements of explosion-proof standards.
Provide explosion-proof housing design, drafting, modification guidance, certification consultation, and other services.
If you have a need for this as well, feel free to message us anytime!
Explosion-proof Certification Application Consultation Services - Shenzhen ZhongNuo Testing Technology Co., Ltd.