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CATAGORY: Home -> Cable-News -> What are the differences between power and control cables?

What are the differences between power and control cables?

With the develop of social, the cable has been a must for in our life. How much do you know about the power cable and control cable? This article mainly introduce some difference between the power cable and control cable.

1. Difference in standard: the standard control cable is 9330, the standard power cable is GB12706

2. Difference in core color : control cable insulated wire core color is generally black printed white, there are power cables are generally low color separation.

3. The difference of use between the power cable and the control cable: the control cable transfer the power directly from the distribution point of the power system to the power supply equipment of various electrical equipment to connect the line, and the power cable is mainly used in the hair, distribution, transmission, change, power lines in the strong electric energy transmission, through the current, power cable Power system trunk lines for the transmission and distribution of large functional power.

4. Difference in the crosssectional area: The power cable is a primary load conductor, the load capacity increases with the power increases, the wire application cross-section must also increase with the current increases, so the power cable specifications are generally larger, 500 square feet (conventional manufacturers can produce the range), and then large Cross-section can do the manufacturers to be relatively less, and the control cable for the secondary command wire, the control is the contactor device current-carrying operation, the load current is very small, the wire cross-section is very small, so the control cable cross-section is generally smaller , The maximum is generally no more than 10 square feet.

5 Difference in the number of cores: The cores of power cable is less, in general a single core, two cores, 3 cores, 4 cores (three-phase four-wire system), 5 cores (three-phase five-wire system) , According to the power grid requirements, up to 5 in general. While the core number of control cable is more, from 2 core to 61 core, or even more. Control cable also uses a variety of core structure, shielding and other measures to obtain a satisfactory electromagnetic compatibility.

6. The rated voltage is different: the rated voltage of the power cable is generally 0.6 / 1kV and above, the control cable is mainly 450 / 750V.

7. Difference in line skin: power cable requires the line skin has enough pressure strength, tensile strength, temperature, corrosion resistance. While the requirements of control cable is low. For the same specifications of the industrial electrical power cables and control cables during the production, the insulation and sheath of the power cable is thicker than the control cable .