Wires and cables are divided into copper and aluminum core cables according to different conductors. There are more common copper core cables in our daily life, because it is widely used, but a lot of people are not familiar with copper core cables. So why is copper core cable more popular, let's have a look:
1.High strength: the stress at room temperature is 7~28% higher than that of aluminum. Especially under high temperature stress, the difference between the two is very far.
2.Low resistivity: the resistivity of aluminum cable is about 1.68 times higher than that of copper cable.
3.Good ductility: copper alloy has an extension rate of 20~40%, electrical copper has an extension rate of more than 30%, and aluminum alloy is only 18%.
4.Large current-carrying capacity: due to low resistivity, copper cable with the same section than aluminum cable allowed current-carrying capacity (can pass the peak current) about 30% higher.
5.Low power consumption: Due to the low electrical resistivity of copper, compared to aluminum cable, copper cable has lower power loss, which is obvious. This will help improve the utilization rate of power generation and protect the environment.
6.Good stability and corrosion resistance: copper core is resistant to oxidation and corrosion, while aluminum core is susceptible to oxidation and corrosion.
7.The construction is convenient: ①the copper core power cable is flexible, the allowable bending radius is small, so it is convenient to turn and easy to wear the pipe; ②Copper power cable fatigue resistance, repeated bending is not easy to break, so the wiring is convenient; ③The mechanical strength of copper core power cable is high, and it can withstand large mechanical tension, which brings great convenience to the construction and laying, and also creates conditions for mechanized construction.
8.Low voltage loss: due to the low resistivity of the copper core cable, the voltage of the copper core cable is smaller when the same cross section flows the same current.
9.Low heating temperature: at the same current, the heat of the copper cable with the same section is much smaller than that of the aluminum cable, so that the operation is safer.
It should be noted that, when choosing Cable Accessories products (Even Heat Shrinkable or Cold Shrinkable), please specify the suitable cable core material.