How to distinguish between power cables and control cables

How to distinguish between power cables and control cables:

1. Different functions: Power cables are used for transmission and distribution lines to transmit and distribute electrical energy; Control cables are used for instrument control, which refers to the power connection lines that transmit electrical energy from distribution stations to equipment and appliances.

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

3. When producing power cables and control cables of the same specifications, the insulation layer thickness and protective layer thickness of the former are greater than those of the latter

4. The core color of control cables is white with black background, while low-voltage power cables are generally color coded.

5. The cross-sectional area of power cables is generally large, with low-voltage power cables having a cross-sectional area of 1.5-300 square meters and high-voltage power cables having a cross-sectional area of 16-630 square meters; The cross-sectional area range of the control cable is 0.75-6 square meters.

6. In terms of core count: According to the standard, low-voltage power cables have 1-5 cores, while high-voltage power cables have one or three cores; The number of cores in the control cable is relatively large, ranging from 2 to 61 cores.