Flameproof Certificate Application Documents for Communication Equipment - Shenzhen ZhongNuo Inspection, Application Process

Shenzhen ZhongNuo Inspection & Testing Technology Co., Ltd. is based in South China and specializes in explosion-proof certification and coal safety certification application consulting services, offering a one-stop explosion-proof technology consulting service.
Explosion-proof product categories with 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 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 connection device
9. Explosion-proof surveillance products
10. Explosion-proof Communication and Signal Devices
11. Explosion-proof Air Conditioners, Ventilation Equipment
12. Explosion-proof electric heating products
13. Explosion-proof accessories, Ex components
14. Explosion-proof instruments and meters
15. Explosion-proof sensor
16. Safety Fencing
17. Explosion-proof instrument boxes

What are the requirements for obtaining an explosion-proof certificate for robotic products?
Now, there's a growing number of robotic products being used in explosion-proof environments. Many clients have asked, "How do robotic products obtain explosion-proof certification?"
What technical requirements? What standards are followed? Do we need to send a sample for testing due to the size of the product?
Robot products are often modular equipment, which is also quite large, and must be explosion-proof.
This involves complete explosion-proof design, electrical component selection, and installation methods.
Battery selection and installation design, preparation of drawings, electrical connections, grounding, and other technical issues.
ZhongNuo Inspection has been involved in the explosion-proof industry for many years, well-versed in the requirements of the GB/T 3836 series standards.
Extensive experience in the field of robotics product litigation.
We offer a one-stop explosion-proof certification service, including preliminary explosion-proof design modifications, drawing assessments, component selection, installation guidance, and certification acquisition.
Robotic products that are not convenient for shipping can also be offered on-site assessment and testing services.
Successful certified cases include patrol robots, track-mounted robots, and positive-pressure robotic arms.
If you have a need for this, feel free to send us a private message anytime!

Division of explosion-proof zones in explosive gas environments
Explosive certification divides hazardous areas into flammable gas environments and combustible dust environments based on the physical state of substances present in the location. According to the duration of presence of hazardous substances in the location, these areas under different physical states are further divided into three zones.
That is: for explosive gas environments, Zones 0, 1, and 2.
Zones 0 - Areas where explosive gas atmospheres are continuously present or present for extended periods, usually above 1000h/year.
Area 1 - Locations where explosive gas environments may occur during normal operation, generally 10-1000 times per year.
Zone 2 - Under normal operating conditions, explosive gas atmospheres are not likely to occur or, if they do, are only present for short periods and infrequently, generally less than 10 hours per year.

Explosion-proof Certification Categories -- 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
(4) Positive Pressure Type P
(5) Immersion Type
(6) Sand-filled type q
(7) Molding Sealant
(8) N-type
2. Electrical equipment for combustible dust environments
Dust-Proof Ignition-Resistant Enclosure
(2) Positive Pressure Type
(3) Intrinsically Safe
(4) Cast-in-place
3. Explosion-proof type S
4. Composite:防爆型式 that combines two or more of the above-mentioned types
Explosion-Proof Certification Application Consultancy - Shenzhen Zhongnuo Testing Technology Co., Ltd.