Explosion proof electrical equipment is divided into Class I explosion-proof certificate, Class II explosion-proof certificate, and Class III explosion-proof certificate according to different usage locations. The Class I explosion-proof certificate we refer to is a certification certificate used for underground equipment in coal mines, usually used in conjunction with the coal safety certificate of the equipment. The Class II explosion-proof certificate refers to the use of non

Explosion proof products refer to a type of electrical equipment used in places with explosive gases and vapors. According to relevant specifications, standards, and regulations, appropriate explosion-proof products should be selected correctly to prevent explosions of surrounding explosive mixtures, which is important for ensuring safe production and preventing explosions and fires from occurring

Electric motors, electrical appliances, and instrument products used in explosive hazardous environments in petroleum, chemical, military, pharmaceutical, and other enterprises can generate arcs, sparks, and dangerous high temperatures during normal operation. Once the concentration of combustible mixtures in the environment reaches the explosive limit range, it will cause explosions in the surrounding environment.

The 9 general requirements for explosion-proof product design are as follows: 1. Fasteners 1. Design principles (1) The size and material of fasteners must meet the structural requirements of explosion-proof types, such as the tensile strength of explosion-proof equipment fasteners must withstand explosive pressure; Fasteners for increased safety and other equipment should ensure that the casing is fully compressed to achieve