What Is The Difference Between Power Cable And Control Cable?

First, the difference between the implementation standards of power cable and control cable products: the specification of control cable is GB/T9330, and the specification of power cable is GB/T12706.

Second, the difference between the core color of the power cable and the control cable: the color of the insulated cable core of the control cable is generally the ground wire and the white digital code, and the low voltage of the power cable is generally distinguished by color.

3. The difference between the functions of power cables and control cables: control cables transmit electromagnetic energy immediately from the power distribution equipment point of the power supply system to the switching power supply connection lines of various electrical equipment, while power cables are mainly used in power distribution and distribution. , transmission, transformation, power supply lines in the transmission of weak electromagnetic energy, according to the large current, power cables are used in the main road of the power supply system to transmit and distribute high-function electromagnetic energy.

Fourth, the difference in the cross section of the power cable and the control cable: the power cable is a primary load transmission line, the cable carrying capacity increases with the expansion of the output power, and the use cross section of the transmission line must also increase with the expansion of the current amount, so the power The size of the cable is generally very large, as large as 500 square meters (the range that the basic manufacturer can manufacture), and there are relatively few manufacturers that can do it with a larger cross-section, and the control cable is a secondary command transmission line, so Regulation refers to the current-carrying operation of components such as AC contactors, the load current is small, and the cross-section of the wire is small, so the cross-section of the control cable is generally small, and the larger is generally not more than 10 square meters.

Five, the difference between the power cable and the control cable cable model: the number of cores of the power cable is relatively small, there are single-core, two-core, 3-core, 4-core (three-phase four-wire system), 5-core (three-phase five-wire system), According to the regulations of the power grid, more are generally 5 cores. For control cables to transmit control signals, there are many types of cables, ranging from 2 cores to 61 cores, or even a large number. The control cable also adopts various countermeasures such as core structure and interception to obtain the actual effect of the electromagnetic compatibility test.

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 450/750V.

Seven, the difference between the wire sheath of the power cable and the control cable: the power cable stipulates that the wire sheath has sufficient compressive strength, tensile strength, high temperature resistance and corrosion resistance. Control cable regulations are relatively low. When the industrial electrical power cable and control cable of the same size are produced, the insulation resistance of the power cable and the thickness of the grommet are thicker than that of the control cable.