Power cables are the backbone of the power system for the transmission and distribution of large functional power. The rated voltage is generally 0.6/1KV and above. The Control Cable transmits the power directly to the power supply of various electrical appliances and its rated voltage is 450/750V. This makes the Power Cable insulation and sheath thickness thicker than the Control cable during production. The difference is summarized as follows:
1. The difference between the implementation standards for power cables and control cables: The standard for control cables is 9330, and the standard for power cables is GB12706. 2. The difference between the color of the Power cable and the control cable cable core: The color of the insulated cable core of the control cable is generally black and white, and the low voltage of the power cable is generally a color separation. 3. The difference between the power cable and the control cable: The control cable transfers the power from the power distribution point of the power system directly to the power connection lines of various electrical equipment and appliances. The power cable is mainly used for distribution, distribution, transmission, and change. In the power supply line, strong electric energy is transmitted, and a large current is passed. The power cable is used to transmit and distribute the large-functional power in the power system main line.
4. The difference between the power cable and the control cable cross-section: The power cable is a load wire, the current capacity increases with the increase of power, and the cross-section of the wire must increase with the increase of the current. Therefore, the specifications of the power cable are general. Larger, up to 500 square meters (range that conventional manufacturers can produce). Relatively few manufacturers can do as large cross-sections. The control cable is a secondary command wire, which controls the current-carrying operation of the contactor and other devices. The load current is very small and the cross section of the conductor is very small. Therefore, the cross-section of the control cable is generally small, and the maximum is generally not more than 10 square.
5. The difference between the number of cores of power cables and control cables: The power cable has a small number of cores, including single core, two cores, three cores, four cores (three-phase four-wire system), and five cores (three-phase five-wire system). Depending on the grid requirements, the maximum is generally 5 cores. The control cable transmits control signals with more cores, from 2 cores to 61 cores, or even more. Control cables also use various wire core structures, shielding and other measures to obtain satisfactory electromagnetic compatibility effects.
6. The difference between the rated voltage of the power cable and the control cable: The rated voltage of the power cable is generally 0.6/1kV and above, and the control cable is mainly 450/750V.
7. The difference between the power cable and the control cable: The power cable requires that the cable has sufficient compressive strength, tensile strength, temperature resistance, and corrosion resistance. Control cable requirements are relatively low. In the production of industrial electrical power cables and control cables of the same specifications, the insulation and sheath thickness of power cables is thicker than that of control cables.
