Copper core power cables have more protective layers than ordinary cables. In order to avoid compression, pressure, scratches, and rat bites, the price and cost of additional armor layers will be very high. It is undeniable that its price is higher than that of ordinary cables, but from the perspective of efficiency, it is correct to choose copper core power cables. Let's understand why the price of copper core power cables is more expensive than ordinary cables!
Why is the price of copper core power cables more expensive than ordinary cables
1. Copper core power cables are usually laid underground. Because the cable sheath is not white, if it is buried in an underground trench, it can prevent the car from sinking, rat bites, and stone injuries. Therefore, when using cables, if there is a problem with the cables laid underground, the loss will be great. It takes time and labor.
2. The mechanical protection layer of copper core power cable can be added to any structure of the cable to improve the mechanical strength and corrosion resistance of the cable. This is a telephone cable designed for mechanically vulnerable and corrosive areas. It can be laid no matter how it is laid. Suitable for direct burial in rocky areas.
3. Among ordinary power cables, the market price of copper core power cables is higher than that of non-sheathed cables, and sheathed cables have a higher protective layer than non-sheathed cables to protect the cables from external mechanical damage and chemical gas corrosion. Of course the price will be higher; however, sheathed power cables are generally used in high-rise buildings, and sheathed cables are not needed indoors.
The use of copper core power cable protective sheath, control soft cable and low-voltage copper core sheathed cable
1. The former is a transmission line suitable for automatic control or monitoring systems, electrical instrument connections, etc., with AC rated voltages below 450/750v.
2. The latter product is suitable for power lines with a rated voltage (U0/U) of 3.6/6 to 26/35KV for power transmission and distribution of energy.
In fact, the copper core power cable refers to the protection of the outer insulation of the cable with steel armor. The low voltage is mostly iron sheet, and the high voltage has iron sheet, stainless steel and other materials. It is used to protect the cable from the accident when the cable is buried on the ground, but the fuse is not a concept. . This is the main reason why it is very expensive. We know that the use of wires and cables in some harsh environments will affect their life, but in this case, cables with special properties are needed to deal with this situation. Never buy wires and cables. If it is expensive, give up the choice. Such products are very valuable. Expensive is a matter of course.
Compared with aluminum core cables, aluminum alloy cables are superior to aluminum core cables in conductivity and copper core power cables in terms of weight. Experiments show that in terms of electrical conductivity, the electrical conductivity of aluminum core cables is about 66% of copper core cables, and the electrical conductivity of aluminum alloy cables is about 80% of copper core cables. The electrical conductivity of aluminum alloy cables is not as good as that of copper core cables. , But it is far inferior to the aluminum core cable. Experiments have proved that under the premise of the same electrical performance, the weight of the aluminum alloy cable is about 50% of the copper core cable. Therefore, comprehensively considered, aluminum alloy cables can completely replace aluminum core cables. Compared with copper core cables, they can effectively reduce the weight of the cables and have great advantages in reducing costs.