Weak electricity, like strong electricity, is a hidden project. If it is repaired later due to material quality problems, the cost will be very high.SYWV Therefore, you must pay great attention to quality when selecting materials in the early stage. Let’s take a look at the materials commonly used in weak current transformation and what you need to pay attention to when purchasing.
1. Weak current materials
Telephone lines are used for telephone calls and are made of copper core wires. The number of cores determines the number of phone extensions that can be answered.AVVR cable Common specifications include two cores and four cores. In home decoration, a two-core telephone line is generally sufficient, but if you also need to connect a fax machine or a computer to dial-up Internet access, it is best to use a four-core telephone line. Telephone lines can be replaced by network cables, and now some home phones are connected through network cables.
2.TV cable
There are currently two types of lines used to transmit television signals: cable television coaxial cables and digital television coaxial cables.ul 758 cable Cable television coaxial cables are double-shielded and will suffer certain losses when used to transmit digital television signals; digital television cables are It is a four-shielded cable that can transmit both digital TV signals and cable TV signals.
In terms of anti-interference, four-shielded cables are better than double-shielded cables. You can use a utility knife to break them apart to compare. It is recommended to use digital TV coaxial cable for new home decoration.
3.Network cable
There are three main types of network cables: twisted pair, coaxial cable, and optical cable.
Twisted pair: It is a data transmission line composed of many pairs of wires. There are two types: STP and UTP. There is a metal isolation film inside the twisted pair of STP, which can reduce electromagnetic interference during data transmission, so it has higher stability; UTP is commonly used. The network cable does not have a metal film, so the stability is poor, but its advantage is that it is cheap.
Coaxial cable: A cable made of layers of insulated wire wrapped around a central copper conductor. It is characterized by good anti-interference ability, stable data transmission, low price, and is also widely used.
Optical cable: It is currently the most advanced network cable, consisting of many hair-thin glass fibers plus an insulating sleeve. Because it relies on light wave transmission, it is characterized by excellent resistance to electromagnetic interference, strong confidentiality, fast speed, and large transmission capacity.
The characteristics and prices of the three different lines are different. When choosing, the choice is mainly based on performance and price.
4.Audio and video cable
The lines used to realize the transmission of music and video mainly include audio cables, audio cables and audio and video cables. Audio cables, commonly known as speaker cables, are mainly used to connect home theater power amplifiers and speakers; audio cables are used to send the output signals of laser CD players, DVDs, etc. in home theaters in the living room to background music power. The connection of the signal input terminal of the amplifier; the audio and video cable is mainly used for home audio-visual system applications.
5. Selection of weak current wires
Look at the quality of copper material. Copper quality determines the quality of the wire, which has a great impact on network speed, sound quality, picture quality, etc. At present, the weak current wire market has a low entry threshold and is a mixed bag. The copper materials are also very different, and the wire prices are also uneven. The copper core size of network cables ranges from 0.35 to 0.58mm. It is recommended that network cables use oxygen-free copper core wires of 0.45 to 0.5mm;
Look at the brand. Choosing a brand is very important. Most brands can represent product quality. The better brands of weak current wires on the market include Akihabara, Anpu Yongxing, Datang, Putian, TCL, etc. But be careful not to buy fake brand products.
6. Weak electrical conduit
Weak electricity is the same as strong electricity. Generally, the lines are placed in conduits and then buried in the wire trough. Therefore, an important material that needs to be used during weak current renovation construction is wire conduit. The wire conduits used for weak current can be the same as those used for strong current. PVC wire conduits are commonly used, but it is best to distinguish them in color. However, if it is too close to strong electricity, galvanized steel pipes can be used for weak electricity to reduce signal interference.
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