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.
Domestic Explosion-Proof Certification
Domestic explosion-proof certification is a compliance test conducted on explosion-proof products used in explosive environments (including electrical and non-electrical products), issuing an explosion-proof certificate for those products that meet the GB/T3836 standard. Currently, the domestic explosion-proof certification standards are essentially equivalent to the international IEC 60079 standard system.

What are the requirements for obtaining an explosion-proof certification for robot products?
More and more robotic products are being used in explosion-proof environments. Many customers ask, how do robotic products obtain explosion-proof certification?
What technical requirements? By what standards? Since the product is so large, do we need to send a sample for testing?
Robot products are often modular equipment, and the devices are relatively large. To achieve explosion-proof performance,
This involves whole machine 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 in the explosion-proof industry for many years, well-versed in the requirements of the GB/T 3836 series standards.
Extensive experience in obtaining evidence for the robotic product field.
We offer a one-stop explosion-proof certification service, including initial explosion-proof design modifications, drawing assessments, component selection, installation guidance, and certification acquisition.
Robotic products not suitable for shipping can be offered on-site evaluation and testing services.
Successful certification cases include patrol robots, track-mounted robots, and positive-pressure robotic arms.
If you have a need for this, feel free to message us anytime!

Can fiber optic temperature measurement products undergo explosion-proof certification? What are the requirements?
Optical fiber temperature measurement products mainly 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 will 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 qualifications and coal safety certifications for clients in the field of fiber optic temperature measurement master units.
We have extensive experience in certification and can provide consulting services for explosion-proof product design modifications, drawing guidance, and certification.
If you have certification needs in this area, remember to message us!

Certificate of explosion-proof validity and renewal issues
The domestic explosion-proof certification is valid for 5 years from the date of issuance. If the Certificate expires, you may choose to renew or replace it. When a company's explosion-proof certification is about to expire, the company should submit an application letter for a replacement within three months before or after the expiration date, and should provide the following documents for the renewal application.
Overseas explosion-proof certifications, such as ATEX and IECEx, are valid for a specific period. This is because their certification process involves a combination of type testing, which includes product certification and a factory production quality system review, to ensure the validity of the Certificate.
Explosion-proof Certification Application Consulting Service - Shenzhen Zhongnuo Testing Technology Co., Ltd.