Power cables and control cables are two very important types of cables in our power system. Although they all play a key role in the transmission and distribution of electricity, there are clear differences between them.

First, we need to understand that they are conceptually different. Power cables, as their name suggests, are cables used to transmit and distribute high-power electrical energy. They usually have a thicker wire diameter, generally 3 or four cores, and the insulation between them is thicker to withstand larger currents. These cables are used on the main mains of the power system and are generally rated at 0.6/1kV and above.

The control cable is mainly used to transmit the control signal. They are rated at 450/750V and are commonly used to transfer electrical energy directly from the distribution point of the power system to the power connection lines of various electrical equipment. The number of cores of the control cable is more, there are 61 cores according to the standard, and it can also be customized according to the specific requirements of users.

Second, their applications are different. Power cables are mainly used in various fields of the power system, such as overhead bare wires, bus bars (busbars), power cables, branch cables, electromagnetic wires and cables for electrical equipment. The control cable is widely used in computer systems, information transmission systems, robot systems, CNC equipment systems, automation systems, tow chain systems and other fields.

The number of cores is also an important difference between power cables and control cables. The diameter of the power cable is large, generally only 3 or four cores. The number of cores of the control cable is more, and there are 61 cores.

In addition, their voltages are different. The rated voltage of power cables is generally 0.6/1kV and above, while the rated voltage of control cables is 450/750V.

Their load flow is also different. Power cables are used to transmit and distribute high power, so their current is larger. The control cable is mainly used to transmit the control signal and transmit the electric energy from the distribution point of the power system to the power connection line of various electrical equipment.

In general, there are obvious differences between power cables and control cables in terms of concept, application field, number of cores, voltage and load flow. Understanding these differences helps us to better select and use these cables to ensure the normal operation of the power system.