Civil wire and cable purchase knowledge

With the development and popularization of household appliances, household electricity consumption has rapidly increased. To ensure the safe use of electricity at home, consumers should pay attention to the following matters when purchasing and using electric wires:

First, the wire surface mark

According to the provisions of national standards, the wire surface should have a continuous sign of the manufacturer's name, product model, and rated voltage. This helps to find the factory in time when problems occur during the use of the wire. Consumers must pay attention to this when purchasing wires.

At the same time, consumers should pay attention to whether the manufacturer's name, product model, and rated voltage on the certificate are the same as those on the surface of the wire when purchasing the wire, and prevent the counterfeit product.

Second, the appearance of wires

Consumers should pay attention to the appearance of the wire should be smooth, flat, no damage to the insulation and jacket layer, clear logo printing, no greasy feeling when the hand mold wire. From the perspective of the cross section of the wire, the thickness of the insulating or sheathing on the entire circumference of the wire should be uniform and should not be eccentric. The insulation or sheath should have a certain thickness.

Third, conductor diameter

Consumers should pay attention to whether the diameter of the conductor is consistent with the section shown on the certificate when purchasing the wire. If the cross section of the conductor is too small, it is easy to cause a short circuit due to heating of the wire. It is recommended to use 1.5 mm2 and above for home lighting circuit wires; for home appliances such as air conditioners and microwave ovens, use wires with a size of 2.5 mm2 and above. The conductor diameter corresponding to the conductor section is shown in the following table:

Fourth, standard use

Should regulate the wiring, the best fixed line is best to use BV single core thread to wear the pipe, pay attention to not touch the wire in the wiring, do not touch the wire in the decoration of the room; in the middle of a route does not connector; wire access electrical box (box) Do not touch the line; in addition to household appliances such as air conditioners, which use larger amounts of electricity, should be supplied by a single wire; weak, strong wires should be kept at a certain distance.

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