The renovation of the new house, large and small, has many details. Every detail needs to be treated with care. You know, a lot of renovation details have to do with the security of the home. However, there are too many decoration materials, and many friends do not know how to choose the materials. It is common to entangle the soft line and the BV line in the new house.

The maintenance electrician recommends the soft wire to the owner, indicating that the soft wire has good ductility and is convenient for maintenance in the future; the decoration electrician recommends the hard wire to the owner. The hard wire is better than the soft wire, so a single-strand wire is used. Now my friends are all confused. They are all recommended by professionals. Do you want to decorate with hard or soft wire? What is the difference between a BV cord and a flexible cord?

Here is a detailed explanation for you.

1. What is BV line? What is a flexible wire?

Soft wire, also known as sheathed wire. It is usually formed by twisting multiple strands of conductive solid metal wires with a diameter of less than 1mm, that is, multiple strands of copper wires are twisted together.

BV wire, also known as plastic copper wire. In general, BV wire less than 10 square meters is a single-strand wire composed of several thick copper cores.

2. Why use hard wires in home decoration? In home decoration, what are the advantages and disadvantages of choosing BV wire and flexible wire?

(1) From the perspective of service life, the BV wire is thick and not easy to be oxidized; the flexible wire is composed of multiple strands of thin copper wire, which is easily oxidized by air. Therefore, the service life of BV wire is significantly longer than that of flexible wire.

(2) In terms of price, since the wire of the flexible wire is relatively soft, it can only be used after being wound many times; the BV wire has only one copper wire. Just wear it directly. Therefore, BV wire has less workmanship than flexible wire and is much cheaper.

(3) In terms of bearing capacity, since the flexible wire is wound with multiple copper wires, its current-carrying capacity is greater than that of a single-stranded copper wire, but the bearing capacity of the BV wire is stronger than the sudden load capacity of the flexible wire. But for ordinary households, the current basically does not exceed 100A, and a single strand can be used.

(4) From a safety point of view, the standard use of flexible wire is to burn the tin or press the nose of the connector when wiring, otherwise one of the multi-strand wires may warp and connect with nearby wires, This is dangerous. BV wire has strong hardness and strong safety.

(5) In terms of convenience, although it is laborious to replace the BV line, it can be taken out from the threading tube completely and smoothly. If necessary, the threading wires can also be replaced and the new wires pulled together. The power cord is easily broken after aging, and the power cord may be accidentally pulled off when replacing the power cord.

3. Where are hard wires and soft wires usually used?

Because of the poor tensile strength, corrosion resistance and fatigue resistance of the flexible wire, the waste recovery rate is low, and it is suitable for the connection of equipment wiring.

Compared with flexible wire, BV wire has the advantages of low price, high tensile strength, strong corrosion resistance, poor fatigue resistance, and high waste recovery rate. Therefore, the BV line is generally used in the power system, that is, buried in the wall and buried as the main line.

It can be seen that there is no difference between the two, only who is more suitable for which position. So we can choose BV line or soft line according to the location of decoration. It is recommended that ordinary families prefer BV wire, which has good anti-oxidation performance and long service time; however, if the circuit rotates too much during the construction process, it is also possible to choose a flexible wire that is more prone to wear and tear.