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.
IECEx Certification
IECEx is a certification system for explosion-proof electrical products promoted by the International Electrotechnical Commission (IEC).
The purpose is to eliminate the discrepancies in equipment and services used in explosive environments, and to promote international trade.
Maintain the level of equipment safety requirements. The current explosion-proof standard is IEC 60079.
IECEx certification has now become a pathway for products used in all hazardous areas to obtain international safety certification, and is currently recognized in many countries worldwide (including Australia, New Zealand, Brazil, Canada, China, Japan, South Korea, Malaysia, Singapore, South Africa, and the United States).
IECEx-certified certificates will be automatically uploaded to the IECEx website, where manufacturers and end-users can locate the relevant documents.

Classification of Explosion-proof Certification -- Shenzhen Zhongnuo Testing Technology Co., Ltd.
Electrical Equipment for Explosive Gas Environments
Explosion-proof type d
(2) Intrinsically Safe Type e
(3) Intrinsically Safe i
Positive Pressure Type P
(5) Immersed Type
(6) Sand-filled type q
(7) Molding Compound
(N) Type
2. Electrical Equipment for Combustible Dust Environments
Dust-Extinguishing Shell
(2) Positive Pressure Type
(3) Intrinsically Safe
(4) Cast-in-place
3. Explosion-proof Type S
4. Composite Type: Explosion-proof type with a combination of two or more of the above-mentioned explosion-proof types

Products for Explosion-proof Certification:
The new implementation details 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 electrical 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 plug-in device
9. Explosion-proof surveillance products
10. Explosion-proof Communication and Signal Equipment
11. Explosion-proof Air Conditioners, Ventilation Equipment
12. Explosion-proof Electric Heating Products
13. Explosion-proof accessories, Ex components
14. Explosion-proof instrumentation and equipment
15. Explosion-proof sensor
16. Safety Fencing
17. Explosion-proof instrument cabinets

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防爆合格证 or the防爆3C certification? If the防爆3C certification is required, an audit of the factory is necessary, and this would include the audit fee, travel expenses for the auditor, as well as the application and Certificate fee for the 3C certification.
2. Related to explosion-proof markings. Different explosion-proof markings correspond to 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 audit. North American explosion-proof certification is even more expensive, over 100,000+
4. Do you need a retest? Some customers' products haven't undergone explosion-proof design at all, and they need to be rectified upon arrival, 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. Needed or not. Labs are often booked solid, and there's often a waitlist. If needed, there will be a fee involved.
explosion-proof certification application consulting service – Shenzhen Zhongnuo Testing Technology Co., Ltd.