Wires are indispensable electrical components in our daily life, but do you know? Lines with different thicknesses have different uses. This article will reveal the wire The Secret Behind for you, and help you choose the right wire and use electricity safely.

There is a big difference between thickness and use.

2.5 square wire, core diameter 1.78mm, which can easily meet the requirements of chandeliers in living rooms, restaurants and bedrooms. Four square wires with a core diameter of 2.25mm escort high-power appliances such as refrigerators and washing machines.

Load capacity, be clear at a glance

The national standard GB 4706.1-1992/1998 stipulates that the load current of 2.5 square copper conductor is 16A ~ 25A, which is about 5500 watts. Aluminum core 13a ~ 20a, about 4400 watts.

Knowledge hint

The "square" of the conductor is not square meters, but square millimeters! The cross-sectional area of copper wire or aluminum wire inside the conductor is the square of the conductor. The radius of 2.5 square conductor is about 0.89mm, which is equal to 2.5 square mm by the area formula of circle. Similarly, the radius of four square wires is about 1. 125mm, and the area is just about 4mm.

Choose wires, no longer confused!

Use electricity safely, starting with choosing the right wires! Electrical appliances with different uses need wires with different thicknesses and different load capacities. Only by choosing the right wires can we ensure the safety of household electricity.