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 a one-stop explosion-proof technology consulting service.
Can fiber optic temperature measurement 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 hazard area, the possibility of the light causing an explosion must be considered.
We'll also 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, it's about considering the product's circuit and the laser generator's emission power.
Shenzhen ZhongNuo Inspection has successfully obtained multiple explosion-proof certificates and coal safety certifications for customers in the field of fiber optic temperature measurement main units.
We have extensive experience in certification and can offer consulting services for explosion-proof product design modifications, drawing guidance, and certification.
If you have a certification need for this, remember to message us!

Domestic explosion-proof certification
Domestic explosion-proof certification is a compliance inspection for explosion-proof products used in explosive environments (including electrical and non-electrical products), issuing an explosion-proof certificate for products that meet the GB/T3836 standard. Currently, the domestic explosion-proof certification standards are basically equivalent to the international IEC60079 standard system.

How to apply for an explosion-proof certificate? Which organizations issue explosion-proof certificates?
The explosion-proof certificate is a safety certification document for equipment used in explosive environments, adhering to the GB/T 3836 series standards.
The process for a company to apply for an explosion-proof certification is quite simple.
Please provide the electrical schematic, assembly drawing, structural drawing, product manual, and corporate standards documents for the product.
And provide samples consistent with the drawings and specifications for explosion-proof testing. Upon passing the test,
You can then issue the explosion-proof inspection report and the explosion-proof qualification certificate.
Currently, the main issuing bodies for explosion-proof certificates include Nanyang CNEX, Tianjin PCEC, Shanghai NEPSI, various Coal Research Institutes, Suzhou Electric Science Institute, and others.
These institutions all have comprehensive certification qualifications, and the validity of the certificates is the same.
Although the process is relatively simple, it's not easy to meet the design requirements of the GB/T 3836 series standards for the product.
If the company is new to explosion-proof product design and certification, Shenzhen Zhongnuo Testing Technology Co., Ltd.
We offer specialized intrinsically safe circuit design and product services, including intrinsically safe design, circuit evaluation, structural design, and drawing guidance.
Successful cases include various sensors, instruments, automation equipment, and robot products.
Feel free to send us a direct message anytime for detailed communication!

What test items are required for explosion-proof certification of the product? What specific requirements are there for the product's explosion-proof design? How can the design pass the explosion-proof testing requirements smoothly? This is information many clients producing explosion-proof products want to know. Here, Zhongnuo Inspection & Testing answers your questions.
Currently, domestic explosion-proof certification is based on the GB/T 3836 series standards. There are general and specific standards for explosion-proof products, with different product structures, electrical parameters, installation methods, and usage locations requiring various certification standards and testing items. Consequently, the explosion-proof design and requirements for products vary. For example, for intrinsically safe products, typical test items include appearance and structure inspection, spark ignition tests, dielectric strength, battery and battery pack testing, temperature rise tests, transient energy tests, etc. For flameproof products, key test items include thermal and cold resistance tests, internal ignition non-propagation, shell pressure resistance, IP testing, and temperature rise tests, among others.
If you're in need of explosion-proof certification for your products, turn to Shenzhen ZhongNuo Testing Technology Co., Ltd. We offer pre-certification design and整改 consulting, prototype整改 guidance, assistance with preparation of technical drawings and documentation, as well as certification application agency services. Feel free to send us a private message!
explosion-proof certification application consulting service - Shenzhen Zhongnuo Testing Technology Co., Ltd.