Many people know little about power outlets before they buy them. A socket into which one or more circuit wiring can be inserted, through which various wiring can be inserted to facilitate connection with other circuits. CEE connector CEE standard industrial plug socket is an explosion-proof socket, and the temperature is limited below 32 degrees. Industrial plugs are suitable for industry, generally divided into 3-core, 4-core, 5-core, etc. The current is generally divided into 16A, 32A, 63A, 125A, 250A, 420A, etc., and the protection level can be divided into IP44 and IP67, which are relatively conventional. Generally, it is used with industrial sockets and industrial connectors. How are they waterproof? What model should I buy? What problems should be paid attention to in use? This paper introduces the main points of information about power outlets.I. Basic introduction of power socketPower socket is a simple waterproof socket product, which provides a safe connection for users' power or signals. Power sockets are widely used in roads, communication equipment, led street lamps, cruise ships, lighthouses, led display screens, gardens, commercial squares and parks.Introduction of waterproof grade of power socketRecently, according to some users' reaction, the power socket they purchased did not achieve the expected waterproof effect, so what is willing to cause the waterproof effect to fail to achieve the expected effect? Generally, this is because you have not purchased a waterproof socket suitable for your own use. For example, if you need to use the socket in water, you need to choose a higher waterproof socket. At present, at home and abroad, the waterproof grade of sockets is marked by IP grade, the highest is IP68 and the lowest is IP00. Among them, it is enough to use IP44 grade sockets outdoors. At present, domestic manufacturers generally produce IP44/IP55 and IP67, etc., which can also be customized according to users' needs.III. Waterproof principlePresumably, people in many shopping malls and other places will see the promotion of power socket manufacturers. They connect the live waterproof plug to the bulb, then throw the plug and plug into the bucket, and the bulb will always be on and the hands in the bucket will not get electric shock. So why is the socket waterproof (what is the principle)?Mainly through various sealing structures, water can't enter the socket, and parts need to be protected. Generally, water can't enter through waterproof structures such as sealing rings and sealant. In order to improve the waterproof ability, a drainage hole is also provided, so that most of the water can be drained before reaching the protective sealing part.