Common sense and purchasing skills of wires

2022-07-22
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Household appliances are a necessity at home. In recent years, with the development and popularization of household appliances, household power consumption has increased rapidly. In order to ensure the safe use of electricity at home, consumers should pay attention to the following matters when purchasing and using wires

household appliances are a necessity at home. In recent years, with the development and popularization of household appliances, household power consumption has increased rapidly. In order to ensure the safe use of electricity at home, consumers are purchasing When using wires, you should pay attention to the following matters

I. Basic knowledge about wires

1. Plastic copper wire,

the letter B represents the wire for wiring, the letter V represents the insulating material PVC, and 4 represents the cross-sectional area of the conductor is 4 square millimeters, which means 4 square wires for PVC insulated wiring. Commonly used bv wires range in cross-sectional area from 0.5 to 185. The larger the cross-sectional area, the smaller the resistance of the conductor, and the larger the current allowed to pass. Of course, if there are higher requirements for wires due to the use environment or other reasons, you can also use environmentally friendly wires (insulation material has little impact on the environment), flame-retardant or fire-resistant wires (resistance to 70 degrees to 105 degrees), etc.

Italian cable wire

sheath wire,

the letter R means soft, the first letter V represents the insulating material PVC, and the second V represents the sheath insulating material PVC, 3 means the number of conductor cores is 3, and 2.5 means the cross-sectional area of single core conductor is 2.5 mm2, which means PVC insulated PVC sheathed 3-core 2.5-square flexible cable

sheathed wires are mainly used in electrical appliances, instruments and electronic equipment, as well as power lines, control lines and signal transmission lines. The number of cores is from 2 to 5, and the cross-sectional area of single core conductor is from 0.12 to 6, etc

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