Poor quality of Industrial Plugs And Sockets and converters is an important cause of electrical fires. The quality problems of small Industrial Plugs And Sockets and converters will pose serious harm to the safety of consumers and their property. Therefore, when consumers choose and buy plug, socket, converter, and switch, the safety of the products should be taken into consideration, and the main performance indicators that affect their safety are as follows:

Sign

Sign is an important basis for guiding people to correctly install, use and maintain, and is an extremely important safety standard for ensuring the safety of personal property. Industrial Plugs And Sockets products should be marked with rated current, rated voltage, power supply and so on. In addition, the converter (the converter refers to a mobile appliance attachment with only one plug part and one or more socket parts combined) to mark the rated current / or power with the "MAX" symbol to guide the user to avoid overloading. Signs or symbols should be durable, clear and discernible. It is not necessary to use signs that can be easily erased and screen printed.

Rated value

The rating is the most basic electrical interchange parameter to ensure the normal, safe and coordinated use of plug and socket, converter and connected electrical appliances. For example, the rated current of the converter shall not exceed the rated value of the plug part. Otherwise, it may cause the user to be in danger of overcurrent heating when the electrical appliance is selected according to the rated current of the socket. The minimum rating of the converter with the fuse and overload protector should be equal to the rating of the fuse and the overload protector. Otherwise, there may be damage to the product.

Size

Size is an important technical requirement related to whether plugs and sockets and converters can be used safely and whether they meet general interchangeability requirements to avoid misinsertion. Size unqualified will affect users to use or produce bad contact, incorrect insertion and other hidden dangers. If the equipment is damaged, it will cause fire and electric shock.

Electric-shock safeguard

Anti shock protection is a key safety indicator to ensure that the plug and socket, the converter is in normal use, or even in some unexpected circumstances, and will not cause an electric shock to the users and others. When the plug and socket are fully or partially plugged in, the charged part of the plug should not be touched, and any plug pin should not be intercalated with the plug socket when the other pins are in touch. Plugs, sockets and converters with protective doors should prevent monopole or probe insertion.

Structure

The plug sleeve assembly of the socket shall be sufficiently flexible to ensure sufficient contact pressure on the plug bolt. The plug should be corrosion-resistant and wear-resistant to ensure good contact between plugs and sockets; plug pins should be locked and not rotated, otherwise the insertion performance and unsafe factors will be affected; the converter has a soft wire fixer to ensure that the soft wire is fixed, can withstand normal tension and torque, plugs and sockets are inserted. At the same time, the plugging surface should be basically strict to prevent electric shock.

Power cord

The power line should have enough cross-sectional area to ensure that the power cord is not heated, resulting in insulation damage, resulting in short circuit, fire and leakage. For example: the common 250V, 10A converter's power line cross section area should be greater than or equal to 0.75mm2.

Mechanical strength

The plug and socket should have enough mechanical strength to withstand the various mechanical stresses caused by falling, impacting and extruding during installation and use; the socket with a protective door should be able to prevent unipolar insertion.

Heat and high temperature resistance to high temperature have great influence on the properties of the insulating material. The structure and characteristics of the insulating material will change essentially in high temperature. This change determines the reliability of the material. Some materials will gradually soften and reduce the mechanical strength at high temperature. This will affect the quality and use of plugs and sockets. It's safe. In addition, the insulation materials of plugs and sockets should have certain flame retardancy. Otherwise, if the product is on fire in use, it will become unmanageable.