Explosion-proof plug is composed of plug and socket. The shell is made of die-cast aluminum alloy. The socket is connected to the power supply end, and the plug is connected to the electrical equipment end. toggle switch. Explosion-proof plugs are divided into explosion-proof flameproof plugs and sockets and explosion-proof flowerless plugs    
Explosion-proof plugs are composed of plugs and sockets, and are mainly used in chemical industry, various mines, petroleum, and places where explosion-proof is required. And subdivided into single phase. For lighting, three-phase, for machine tools and other places.    
In engineering equipment, explosion-proof socket is one of the essential accessories. It is needed in various large-scale projects in the country or unit, so how to choose this equipment?    
First, look at the exterior. If you don't look closely, you might think that all explosion-proof sockets look similar, at most only slightly different in color. In fact, a uniform appearance can reflect the quality of the material. Crude sockets are mostly made of poor materials.    
Second, look at the structure. It mainly depends on the internal cable and interface material. If the metal material is rusty or has poor conductivity, it is of poor quality. Please do not buy.    
Third, look at security. In the process of using the explosion-proof socket, if it is not tight enough, it is easy to cause safety problems.