Low-voltage cables play a vital role in power transmission and distribution. Among them, low-voltage copper core cable
and aluminum core cable are the two most common types. They differ significantly in their manufacturing materials,
performance characteristics, and applications.
First, let’s learn about low-voltage copper core cables. Copper, as a highly conductive metal material, is widely used in
power transmission. The conductor of low-voltage copper core cable is made of pure copper, which has good electrical
conductivity, corrosion resistance and long service life. In addition, copper mining, smelting and processing technology is
mature and the cost is relatively low. Therefore, low-voltage copper core cables perform well in terms of electrical
performance, mechanical performance and cost-effectiveness. Low-voltage copper core cables are widely used in power
transmission and distribution in domestic, commercial and industrial areas.
However, low-voltage copper core cables also have some disadvantages. First, copper is a rare metal that is relatively
expensive to mine and process, resulting in higher cable manufacturing costs. Secondly, copper is heavier compared to
aluminum, which makes the cable heavier and more difficult to install. In addition, in some specific applications, such as
those where long-distance power transmission is required, the cross-section of low-voltage copper core cables is larger,
which will increase the resistance and voltage drop of the line and affect the efficiency of power transmission.
Next, let’s discuss low-voltage aluminum core cables. As a metal material with good electrical conductivity, aluminum is
relatively low-priced and has good plasticity and ductility. Therefore, low-voltage aluminum core cables have certain
advantages in terms of manufacturing cost and machining. In addition, aluminum’s lighter weight compared to copper
makes aluminum core cables lighter and easier to install and maintain. In some situations where long-distance power
transmission is required, the smaller cross-section of the aluminum core cable can reduce the resistance and voltage drop
of the line and improve the efficiency of power transmission.
However, low-voltage aluminum core cables also have some disadvantages. Aluminum has poor corrosion resistance and
is easily oxidized, resulting in a decrease in electrical conductivity. In addition, aluminum core cables have low mechanical
strength and are easily damaged by external forces. In order to make up for these shortcomings, the outer layer of aluminum
core cables is usually treated with anti-corrosion, and protective measures are strengthened during use. Despite this,
aluminum core cables are still widely used in some specific applications due to their lower cost and ease of processing.
Low-voltage copper core cables and aluminum core cables each have their own advantages and disadvantages. When
choosing which type of cable to use, there are trade-offs based on actual needs and application. For example, low-voltage
copper core cables are a better choice where high electrical conductivity and high stability requirements are required, such
as power transmission and distribution in homes and commercial areas. In situations where cost is more sensitive or power
needs to be transmitted over long distances, such as remote control of agricultural irrigation systems or industrial equipment,
low-voltage aluminum core cables may be more suitable.
With the development of science and technology and the improvement of environmental awareness, more new low-voltage
cable materials and manufacturing technologies may appear in the future. These new technologies will further optimize cable
performance, cost and environmental protection. Therefore, in the future power transmission and distribution fields, low-voltage
copper core cables and aluminum core cables will still play an important role, but their application scope and performance
characteristics may change.