Key Points for Purchasing Power Cords and Plugs

When purchasing power cords, plugs and sockets, converters, and switches, you should focus on product safety, and the main factors that affect their safety are the following functional guidelines:

Power Cord Rating

The rated value of the power cord is the most fundamental electrical exchange cooperation parameter to ensure the normal, safe and cooperative use of plug 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 of the power cord. Otherwise, it may cause the user to choose electrical appliances according to the rated current of the socket, and the power cord plug will over-current and generate heat; the minimum rating of the converter with fuses and overload protectors should be equal to that of fuses and overload protectors. Ratings indicated above. Otherwise, product damage may occur.

Power cord CCC mark

The CCC mark of the power cord is an important basis for instructing people on correct equipment, operation and repair, and is an extremely important safety standard content to ensure personal and industrial safety. Power cord plug products should be marked with rated current, rated voltage, power supply properties, etc. in a prominent position.

Power cord plug anti-shock protection

The electric shock protection of the power cord plug is a key safety policy to ensure that the plug, socket and converter will not cause electric shock accidents to users and others under normal use conditions, or even some accidental conditions. When the plug is fully or partially mated with the socket, the live parts of the power cord plug should not be touched.

Power cord plug structure

The structure of the power cord plug should have satisfactory elasticity to ensure a satisfactory touch pressure on the plug pin of the power cord plug. The socket should be corrosion-resistant and wear-resistant to ensure that the plug and socket of the power cord have a good touch; the pin of the plug should be fixed and cannot be rotated, otherwise it will affect the insertion function and cause unsafe factors; the converter has a flexible wire fixing device , to ensure that the cord is fixed and can withstand normal pulling force and torque, etc.; when the power cord plug and socket are mated, the mating surface should be basically tight to avoid electric shock accidents.

Power cord plug standard

The power cord plug standard is an important technical requirement related to whether the power cord plug and converter can be used safely and whether they can meet the general interchangeability requirements to avoid accidental insertion. Unqualified power cord plug standards will affect the user's use or cause risks such as poor contact and false insertion, and serious fire and electric shock accidents.

Cross-sectional area of ​​wire

The wire should have a sufficient cross-sectional area to ensure that the wire will not heat up and cause insulation damage, resulting in short circuit, fire, leakage, and accidents. For example: the cross-sectional area of ​​the power cord of a common 250V, 10A converter should be greater than or equal to 0.75mm2.