The gas explosion-proof certification and dust explosion-proof certification that we often refer to are divided based on the applicable locations of the equipment.

Explosion proof equipment used in various hazardous gas environments shall be certified for gas explosion prevention, and equipment used in various combustible dust areas shall be certified for dust explosion prevention.

In explosion-proof certification, gases are divided into IIA, IIB, and IIC, and dust is divided into IIIA, IIIB, and IIIC. Their characteristics and environments are different, and the explosion-proof protection measures taken for equipment are also different. The two cannot be mixed. Of course, some products can be used in both gas and dust environments by considering the requirements of gas and dust explosion-proof standards when applying for explosion-proof certification. On the explosion-proof certificate, it can also be seen through the explosion-proof mark whether it belongs to gas explosion-proof certification or dust explosion-proof certification.

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Shenzhen Zhongnuo Testing Technology Co., Ltd. has long been dedicated to the field of explosion-proof technology, with rich experience in obtaining certification and a technical team in the field of intrinsic safety explosion-proof certification. We have experienced intrinsic safety electronic engineers who can provide explosion-proof technology services such as intrinsic safety design, board copying, circuit evaluation, and rectification, avoiding pitfalls for enterprises and helping them quickly apply for explosion-proof certification.