Safe use of plugs and sockets, as well as poor quality of converters, is an important cause of electrical fires. The quality issues of small plugs, sockets, and converters will pose a serious threat to the personal and property safety of consumers. Therefore, when consumers choose plugs, sockets, converters, and switches, they should focus on considering the safety of the product, and the main performance indicators that affect its safety are the following: signs are an important basis for indicating people to install, use, and maintain correctly, and are extremely important safety standards to ensure personal and property safety. Plug and socket products should be clearly labeled with rated current, rated voltage, power supply properties, etc. In addition, the converter (which refers to a mobile electrical accessory with only one plug part and one or more socket parts combined together) product should be marked with the "MAX (or maximum)" symbol to indicate the rated current/or power, to guide users to avoid overload use. The logo or symbol should be durable and clearly distinguishable. Silk screen and paper labels that can be easily erased should not be used. The rated value is the most basic electrical exchange and coordination parameter to ensure the normal, safe, and coordinated use of plugs, sockets, converters, and connected electrical appliances. For example, the rated current of the converter should not exceed the rated value of the plug part. Otherwise, it may cause danger when users select electrical appliances based on the rated current of the socket, causing the plug to overheat due to overcurrent; The minimum rating of converters with fuses and overload protectors should be equal to the rating indicated on the fuses and overload protectors. Otherwise, product damage may occur. The size is an important technical requirement related to the safe use of plugs, sockets, and converters, as well as whether they meet the requirements of universal interchangeability to avoid accidental insertion. Unqualified dimensions can affect users' use or create hidden dangers such as poor contact and incorrect insertion. It can cause equipment damage, and in severe cases, it can lead to fire and electric shock accidents. Anti electric shock protection is a key safety indicator that ensures that plugs, sockets, and converters will not cause electric shock accidents to users and others under normal use, or even in some unexpected situations. When the plug and socket are fully or partially connected, the live parts of the plug should not be accessible; Any pin of the plug should not be able to connect with the live plug sleeve of the socket when other pins are accessible. Plug sockets and converters with protective doors should be able to prevent single pole or probe insertion. The socket components of the structural socket should have sufficient elasticity to ensure sufficient contact pressure on the plug and pin. The plug sleeve should be corrosion-resistant and wear-resistant to ensure good contact between the plug and socket mating parts; The pin of the plug should be locked and cannot rotate, otherwise it will affect the insertion performance and cause unsafe factors; The converter has a flexible cable fixing device to ensure that the flexible cable is fixed and can withstand normal tension and torque; When the plug and socket are inserted and closed, the surface between them should be basically tight to prevent electric shock accidents. The power cord should have sufficient cross-sectional area to ensure that the power cord does not heat up and cause insulation damage, resulting in short circuits, fires, and leakage, leading to accidents. For example, the cross-sectional area of the power line of a common 250V, 10A converter should be greater than or equal to 0.75mm2. Mechanical strength plugs and sockets should have sufficient mechanical strength to withstand various mechanical stresses caused by drops, impacts, squeezing, etc. during installation and use; Sockets with protective doors should be able to prevent single pole insertion. Heat resistance and flame resistance have a significant impact on the various properties of insulation materials. Under high temperature conditions, the structure and characteristics of insulation materials will undergo essential changes, which determine the reliability of material use. Some materials will gradually become soft and their mechanical strength will decrease at high temperatures, which will affect the quality and safety of plugs and sockets during use. In addition, the insulation material of plugs and sockets should have a certain degree of flame retardancy. Otherwise, if the product catches fire during use, it will explode uncontrollably. Understand the safety performance of plugs and sockets, and when purchasing and using them, grasp the following points to ensure the safety of your family and property: Firstly, you must choose a legitimate factory, supermarket, or specialty store, and choose brand products; Select corresponding (matching) products based on the power of the electrical appliances used, such as air conditioners, high-power showers, etc. 16A plugs and sockets should be used, while 10A plugs and sockets should be used for other low-power appliances. When purchasing a 16A plug power cord, it is necessary to check whether the wire square specification reaches 1.5 square meters or above. If the wire is less than 1.5 square meters, it is easy for the copper wire to heat up when using high-power electrical appliances, The outer surface of PVC becomes soft, leading to issues such as electrical burns or short circuits in the wiring. 2、 It is necessary to check whether the product logo is complete, whether there is a manufacturer's trademark, and whether there is a local national safety certification mark (for example, in the Chinese market, there must be a CCC mark). If there is no mark on the plug wire product, then the plug product must be a counterfeit product, and the quality of the product will not be guaranteed. 3、 Check the certificate of conformity and the inspection report issued by the legal department for the plug product. If the converter product is not listed in mandatory certification, you should check the inspection qualification report issued by the statutory inspection agency when purchasing, or check the file number on the plug online to see if it is valid. 4、 Conduct a simple insertion and insertion experiment on plug products. After inserting the plug into the socket, it should be in good contact without feeling loose and can be pulled out without too much force. Although some products have undergone factory testing, they may inevitably damage the plug insert after transportation. Conduct testing before purchasing to reduce many unnecessary losses in the future. 5、 Never choose a plug with a rotatable pin or artificially change the shape of the plug. The plug after changing its shape must pass CCC certification, otherwise it is definitely an unsafe plug product and is prone to high-voltage breakdown. Also, do not use two high-power appliances on the same socket at the same time; When it is found that the temperature of the plug, socket or power cord is too high or there is a spark, it should be stopped and replaced