What Does Cable Size Mean?

What does cable size mean?

When purchasing cables and cables, we often hear 1.5, 2.5, 4, 6, and 10 square cables. So what does the square of cables and cables mean? What does it mean? How many square cables and cables should you choose when decorating your home? The editor of Hongzhou Wire and Cable will talk to you about cables today. What does the square of the mean?

1. The meaning of the square of the wire

People often say 1.5, 2.5, 4, 6 and 10 square lines. This index value refers to the cross-sectional area of the transmission line. A 1.5 square wire is a wire with a cross-sectional area of 1.5 mm2. When we choose cables and cables, there is also another indicator value - cable ampacity. Current-carrying capacity refers to the amount of current that an electrical conductor can continuously transport under special conditions and cross-sectional area of the enterprise, without causing its stable ambient temperature to exceed the standard value. The safe current carrying capacity of copper core wire is generally 5~8A/mm, and the safe current carrying capacity of aluminum wire cable is 3~5A/mm

2. How to choose cables and wires for home decoration

For example, in combination with reality, if you need to connect a 1000 watt household appliance, the input power = 1000/220 = about 5 amps. Generally, the square current carrying capacity is about 5A-8A, so the square wire is sufficient. Naturally, if it's aluminum, it needs to be 1.5 square inches. (The above data information is for reference only)

1. In home decoration, 1.5 square lines are often used as lighting lines to ensure that the output power of the lamp is around 2500 watts. In some shower rooms with integrated Yuba, the output power is likely to be several hundred watts or even several kilowatts. It is proposed to change the lighting line to a 2.5 square line to ensure the safe application of the lamp and integrated Yuba within the range of 4000 watts.

2. Other household sockets generally use 4 square wires, which can be connected to household appliances of 220V*32A=7000W watts, and are used safely at the same time.

Lighting fixtures and socket wiring applications. It is not necessary to take electricity from the lighting line and use it as a power outlet. Standards and norms are prerequisites for safety.

3. It is recommended to separate the wiring of the air conditioner and the electrical control cabinet. Since most of the housing sockets are connected in series, overloading is not recommended, which will accelerate aging and increase the risk. Central air conditioners above 3 units generally use single-core wires above 4 square meters.

4. Instantaneous water heaters are popular for their power saving, small size, and elegant appearance. At this stage, its popularity is very fast, but it also consumes a lot of electromagnetic energy during operation, ranging from 3000 watts to 6000 watts, 7500 watts, 8000 watts and even higher. Therefore, when assembling the instant water heater, if it exceeds 6000 watts, it must be separated from the electrical control cabinet. If it exceeds 7000 watts, it is necessary to use 6 square wires, and select an anti-leakage air leakage switch corresponding to the current amount. . If you choose cables and wires, it must not be cost-effective and risk-proof in the process of use.

The multi-core copper wire of 5.10 square meters and above is the national standard wire, which is a multi-core copper wire, which is often used in the home channel line.