Poor quality of plugs, sockets and converters is an important cause of electrical fires. The quality problems of small plugs, sockets and converters will cause serious harm to the personal and property safety of consumers. Therefore, consumers should focus on the safety of products when purchasing plugs, sockets, converters and switches, and the main factors affecting their safety are the following performance indicators:
Logo
Signs are an important basis for instructing 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 marked with rated current, rated voltage, power supply properties, etc. in obvious positions. In addition, converters (converters refer to mobile electrical accessories with only one plug part and one or more socket parts combined) products should be marked with the "MAX (or maximum)" symbol to indicate the rated current/or power, To guide users to avoid overloading. Signs or symbols should be durable and legible. Silkscreen and sticker signs that can be easily erased should not be used.
Rated value
The rated value is the most basic electrical interchange matching parameter to ensure the normal, safe and cooperative use of plugs, sockets, converters and connected electrical appliances. For example: the rated current of the converter shall not be greater than the rated value of the plug part. Otherwise, it may cause danger when the user selects electrical appliances according to the rated current of the socket, and the plug overcurrent heats up, causing danger; the minimum rating of the converter with fuse and overload protector should be equal to the mark on the fuse and overload protector. rated value. Otherwise, product damage may occur.
Size
Size is an important technical requirement related to the safe use of plugs, sockets and converters, and whether they meet general interchangeability requirements to avoid misinsertion. The unqualified size will affect the user's use or cause hidden dangers such as poor contact and mis-insertion, which will damage the equipment at light level, and cause fire and electric shock accidents in severe cases.
Protection against electric shock
Electric shock protection is a key safety indicator to ensure that plugs, sockets and converters will not cause electric shock accidents to users and others under normal use, even in some unexpected situations. When the plug is fully or partially inserted into the socket, the live parts of the plug shall not be accessible; any plug of the plug shall not be able to be inserted into the live socket of the socket when the other plugs are accessible. Plugs, sockets and converters with protective doors should be able to prevent single-pole or probe insertion.