What does the square of the wire mean? The often mentioned 1.5 square meters and 2.5 square meters refer to the cross-sectional area of ??the wire conductor. That is the thickness of the wire. The greater the power of an appliance, the thicker the wire used

How to choose between one wire and multiple wires? First, what is one wire and what is multiple wires. A wire is a hard wire, also called a BV wire, with only the thick copper core being the conductor. Multiple wire is a wire, also known as BVR wire, which consists of multiple copper wires twisted together to make a single conductor.

Compare the two:

Price: The price of the strand is higher

Softness and hardness: The strand is relatively hard and is easily damaged by repeated bending; Relatively soft and strong

Oxidation degree: Theoretically, under the same quality, multiple strands have more contact surfaces with air than one strand, so multiple strands should be more susceptible to oxidation.

Scope of use: Because electricians with concealed decoration like to use multi-strand wires, which can easily pass through pipes; at the construction site, there are many single-strand wires that do not need to be installed with PVC pipes

Conductivity: In fact, theoretically, the conductivity of one line and multiple lines is the same, the manufacturer is the same, the specifications are the same, the nominal cross-section of the conductor is the same, and the conductivity is basically the same

For decoration, is the larger the square number of wires, the better?

Yes, of course the bigger the square of the wire, the better. The larger the square, the greater the amount of current it carries and the better the performance. But, biggest is best. Just like buying a heater in the summer, you can't use it in the summer and winter. In that case, earning more money to buy an air conditioner is the best choice in summer.

1. The larger the square of the wire, the higher it will be. Of course, local tycoons are free to do so

2. The larger the square of the wire, the more difficult it is to install. First of all, the wiring holes of ordinary sockets cannot connect wires that are too large in size. Secondly, the larger the square of the wire, the more difficult it is for the hidden wire to pass through the PVC pipe. Passing too much will cause pressure between the wires and affect heat dissipation, making it more dangerous; if there are too few wires, more PVC wire tubes will be used. , will not only increase the material cost, but also affect the wiring.

According to national housing standards, concealed wires must be laid with casing. The conductors shall be copper-core insulated wires. The cross-section of each residential conductor shall be above 10m, and the cross-section of the branch shall be above 2.5m.