Shenzhen Zhongnuo Inspection & 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.
Can fiber optic temperature sensing products undergo explosion-proof certification? What are the requirements?
Fiber optic temperature sensing products primarily monitor temperature through sensing fibers, offering high accuracy, immunity to electromagnetic interference, and real-time online capabilities.
If this fiber optic is emitted into an explosive hazardous area, the possibility of the light causing an explosion must be considered.
We'll need to consider obtaining explosion-proof certification. The execution standards for explosion-proof certification of fiber optic temperature measurement products are GB/T 3836.1 and GB/T 3836.22.
Primarily consider the product's circuit and the laser generator's emission power.
Shenzhen ZhongNuo Inspection has successfully obtained multiple explosion-proof certifications and coal safety approvals for its fiber optic temperature measurement master units for clients.
We have accumulated extensive experience in certification and can offer consulting services including explosion-proof product design modification, drawing guidance, and certification.
If you have a certification need for this, remember to message us!

Shenzhen Zhongnuo Testing Technology Co., Ltd. is a top choice for explosion-proof electrical testing institutions. We specialize in providing on-site explosion-proof testing and modification construction services for various gas stations, gas stations, oil depots, food factories, feed mills, chemical plants, and more.
Our inspection services strictly adhere to relevant standards and regulations, including the selection, installation, wiring, static electricity, and grounding of explosion-proof equipment. After inspection, if any non-compliant items are found, we will provide specific rectification suggestions to ensure your equipment meets explosion-proof safety requirements.
In addition, as per the AQ3009-2007 "Electrical Safety and Explosion-Proof Specifications for Hazardous Areas," explosion-proof electrical equipment in use must undergo at least one explosion-proof performance, installation, and maintenance inspection every 3 years. Our experienced inspection team and industry expertise ensure accurate and reliable test results and remediation suggestions.
If you have specific testing requirements or need further communication, please feel free to contact us. We are committed to providing you with excellent service!

Explosion-proof product categories certified:
The new implementation measures 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 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 instruments and meters
15. Explosion-proof sensor
16. Safety Fencing
17. Explosion-proof instrument cabinets

Basic Process of Coal Safety Certification and Agencies
Coal Mine Safety Certification is a mandatory safety certification for equipment and products used underground in coal mines, implemented through a "product testing + factory audit" approach.
We must conduct tests on the products in question, as well as on-site inspections and annual supervisory audits of the manufacturing facilities for these products, which is commonly referred to as factory audits.
Product testing requires compliance with the coal safety standards.
For electrical products, considerations must be made for the coal mine gas environment to meet explosion-proof standards, as well as product performance requirements.
Factory audits primarily focus on the ISO9001 production quality system, with additional requirements from the Mine Products Safety Mark Implementation Rules guiding the factory evaluation.
AnSafe Center is the certification and inquiry body for coal safety certifications.
Shenzhen ZhongNuo Inspection offers coal safety certification and mine safety consulting services, well-versed in the entire certification process and requirements.
Some explosion-proof technology engineering teams and factory inspection specialists are available to assist companies in conveniently and quickly applying for the Coal Safety Certification.
Our successful cases include light boxes, remote controls, fiber optic temperature measurement devices, sensors, air compressors, mobile phones, thermal imaging cameras, and patrol robots, etc.
If you have any needs in this regard, feel free to send us a private message for further discussion at any time!
Explosion-proof Certification Application Consulting Service - Shenzhen Zhongnuo Testing Technology Co., Ltd.