Control cables are characterized by moisture resistance, corrosion resistance, and damage resistance, and can be laid in tunnels or cable trenches. Power cables are used in the main power lines to transmit and distribute high-power electrical energy, while control cables directly transmit electrical energy from the distribution points to the power supply lines of various electrical equipment and appliances. The rated voltage of power cables is generally 0.6/1kV and above, while control cables are mainly 450/750V. During production, power cables have thicker insulation and sheaths than control cables of the same specifications.
Control cables belong to electrical equipment cables, and along with power cables, they are two of the five major cable categories.
The standard for control cables is GB 9330, while the standard for power cables is GB 12706.
The insulation cores of control cables are generally black with white lettering, while low-voltage power cables are usually color-coded.
The cross-sectional area of control cables generally does not exceed 10 square millimeters, while power cables, primarily for transmitting electricity, generally have larger cross-sections.
For the reasons mentioned above, power cables can generally have larger cross-sections, up to 500 square millimeters (the range that conventional manufacturers can produce). There are relatively fewer manufacturers that can produce cross-sections larger than that. Control cables, on the other hand, generally have smaller cross-sections, with a maximum of no more than 10 square millimeters.
