Many customers ask us, do non-electrical equipment used in explosive atmospheres need to go through explosion-proof certification? What standards should follow? What precautions should be taken for non-electrical equipment explosion-proof certification? etc.

To address these questions, based on years of experience in explosion-proof certification and license acquisition, Sinotest Testing has sorted out a brief interpretation of which non-electrical equipment requires explosion-proof certification and the relevant application requirements.

In explosive atmospheres, various non-electrical equipment is commonly used, such as couplings, gearboxes, brakes, hydraulic and pneumatic motors, etc. These equipment involve high-speed moving and frictional components during operation, which carry the risk of ignition sources such as sparks, arcs, and high temperatures. Therefore, it is necessary to consider the explosion-proof performance of the equipment when used in explosive atmospheres.

The reference standards for non-electrical equipment explosion-proof certification are mainly GB/T 3836.1, GB/T 3836.28 and GB/T 3836.29.

A comprehensive ignition hazard assessment of the entire mechanical equipment is an important design key for non-electrical equipment explosion-proof certification.

With years of focus on explosion-proof certification consulting services, Sinotest Testing has also successfully obtained multiple certification licenses for non-electrical equipment, including gearboxes, exoskeleton equipment, mechanical seals, torque limiters, etc. If you have consulting needs in this regard, please feel free to private message us anytime!