Power cables and control cables are often heard in engineering projects, but do you know the difference between power cables and control cables? The following small series will give you a detailed introduction.

1. The difference between the implementation standards of 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 core color of the power cable and the control cable: the color of the insulated core of the control cable is generally black and white, and the low voltage of the power cable is generally color-separated.

3. The difference between the functions of power cables and control cables: control cables directly transmit electrical energy from the distribution point of the power system to the power connection lines of various electrical equipment and appliances, while power cables are mainly used in power generation, distribution, transmission, transformation, In the transmission of strong electric energy in the power supply line, the current passing through is large, and the power cable is used in the main line of the power system to transmit and distribute large-scale electric energy.

4. The difference between the power cable and the control cable cross-section: the power cable is a primary load wire, the current carrying capacity increases with the increase of power, and the application cross-section of the wire must also increase with the increase of the current, so the specifications of the power cable are generally Larger, as large as 500 square meters (the range that conventional manufacturers can produce), no matter how large the cross-section can be, there are relatively few manufacturers who can do it, and the control cable is a secondary command wire, which controls the current-carrying operation of devices such as contactors. , The load current is extremely small, and the wire cross-section is extremely small, so the cross-section of the control cable is generally small, and the maximum is generally not more than 10 square meters.