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.
To obtain the safety certification, a series of documents must be prepared, including product manuals, corporate standards, electrical schematics, block diagrams, PCB layouts, assembly drawings, battery specifications (if applicable), potting process files (if applicable), wireless transmission power reports (if applicable), and shell material reports (if applicable).

What types of explosion-proof certifications are there?
explosion-proof certifications can mainly be categorized into the following types:
1. Explosion-proof 3C Certification: This is a mandatory product certification for a portion of explosion-proof electrical equipment. As of October 1, 2009, the system has included this category of explosion-proof electrical equipment in the CCC certification catalog. Products listed in the catalog require an explosion-proof 3C certification, following the "product testing + factory audit" model.
2. Explosion-proof Certification: This is a certification for products not listed in the Explosion-proof 3C Catalog. The certification mode involves product testing, and upon passing the test, an explosion-proof certificate can be issued. However, it's important to note that while products outside the Explosion-proof 3C Catalog can only apply for an explosion-proof certificate, there is a risk of being penalized by market supervision.
Additionally, based on the application of explosion-proof products, they can also be categorized into mine-use and non-mine-use explosion-proof products.
3. Coal Mine Explosion-Proof Products: Coal mine explosion-proof products require the Coal Safety Certification, which includes explosion-proof performance testing and performance standard testing of the products, as well as factory inspections and annual reviews.
4. Non-mining explosion-proof products: They are classified according to the aforementioned explosion-proof 3C certification and explosion-proof certificate certification.
5. Explosion-proof products for export require different explosion-proof certifications based on the destination country's specific requirements, such as ATEX certification and IECEx certification, etc.
Shenzhen Zhongnu Inspection has been specializing in explosion-proof product testing and certification for years, well-versed in both domestic and international explosion-proof standards. We have a team of explosion-proof technical engineers who can provide explosion-proof circuit structure design and drawings, as well as tailored explosion-proof solutions to help businesses quickly and conveniently obtain explosion-proof certification. For more details, feel free to message us anytime!

The cost of obtaining explosion-proof certification at Shenzhen Zhongnuo Testing Technology Co., Ltd. is related to the following aspects:
1. Do you need a防爆certification or a防爆3C certification? If a防爆3C certification is required, a factory audit is necessary, which includes the audit fee, travel expenses for the auditor, the applying fee for the 3C certificate, and the Certificate fee, etc.
2. Related to explosion-proof markings. Different explosion-proof markings indicate different explosion-proof items, and naturally, the costs vary accordingly.
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 factory audits. North American explosion-proof certification is even more costly, over 100,000+
4. Do you need a retest? Some customers' products haven't undergone explosion-proof design at all. Bringing them in for整改 adds extra costs. Plus, if the product includes batteries, battery testing is an additional expense, especially for those that keep failing the tests.
5. Needed or not. Labs are often booked up, and there's often a waiting list. If needed, there will be a fee involved.

The intrinsic safety certification is widely applied to instruments and equipment with low power consumption and energy, such as handheld terminal products. These devices generate relatively low energy, which can be easily controlled within a safe range through technical means, meeting the intrinsic safety requirements. For example, temperature vibration sensors, remote transmitters, monitoring devices, Bluetooth beacons, and walkie-talkies are all products that can be considered for intrinsic safety certification.
Explosion Proof Certification Application Consulting Services - Shenzhen Zhongnuo Testing Technology Co., Ltd.